:root {
  --ink: #0b0b0b;
  --panel: #131313;
  --panel-2: #191919;
  --paper: #f0eee7;
  --muted: #a6a49d;
  --line: rgba(255, 255, 255, 0.13);
  --accent: #5f7cff;
  --accent-soft: rgba(95, 124, 255, 0.14);
  --orange: #ff6b35;
  --red: #ff5a58;
  --green: #4fda8a;
  --font-display: "Oswald", sans-serif;
  --font-body: "Manrope", sans-serif;
  --font-mono: "DM Mono", monospace;
  --radius: 18px;
  --shadow: 0 20px 70px rgba(0, 0, 0, 0.28);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  overflow-x: hidden;
  background: var(--ink);
  color: var(--paper);
  font-family: var(--font-body);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}
button, input, select, textarea { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
a { color: inherit; text-decoration: none; }
button { color: inherit; }
img { display: block; max-width: 100%; }
::selection { color: white; background: var(--accent); }

.container { width: min(1180px, calc(100% - 48px)); margin-inline: auto; }
.eyebrow {
  color: var(--accent);
  font: 500 11px/1 var(--font-mono);
  letter-spacing: .16em;
  text-transform: uppercase;
}
.tag {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 7px 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: #ceccc4;
  font: 500 10px/1 var(--font-mono);
  letter-spacing: .08em;
  text-transform: uppercase;
}
.tag.lime { color: #8fa4ff; border-color: rgba(95,124,255,.42); background: var(--accent-soft); }
.tag.success { color: var(--green); border-color: rgba(79,218,138,.3); background: rgba(79,218,138,.08); }
.tag.warning { color: #ffc271; border-color: rgba(255,194,113,.3); background: rgba(255,194,113,.08); }
.tag.danger { color: #ff8a88; border-color: rgba(255,90,88,.3); background: rgba(255,90,88,.08); }
.dot { width: 6px; height: 6px; border-radius: 50%; background: currentColor; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  min-height: 46px;
  padding: 0 18px;
  border: 1px solid transparent;
  border-radius: 999px;
  background: transparent;
  cursor: pointer;
  font-size: 13px;
  font-weight: 700;
  transition: transform .2s, background .2s, color .2s, border-color .2s;
}
.btn:hover { transform: translateY(-2px); }
.btn:active { transform: translateY(0); }
.btn-primary { color: white; background: var(--accent); }
.btn-primary:hover { background: #7892ff; }
.btn-outline { color: var(--paper); border-color: rgba(255,255,255,.28); }
.btn-outline:hover { border-color: var(--accent); color: #91a6ff; }
.btn-ghost { min-height: 38px; padding-inline: 13px; color: #c6c4bd; }
.btn-ghost:hover { background: rgba(255,255,255,.07); color: white; }
.btn-danger { color: #ff918f; border-color: rgba(255,90,88,.25); background: rgba(255,90,88,.08); }
.icon { width: 17px; height: 17px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.icon-btn {
  width: 39px; height: 39px; padding: 0; border: 1px solid var(--line); border-radius: 50%;
  display: grid; place-items: center; background: transparent; cursor: pointer;
}
.icon-btn:hover { border-color: var(--accent); color: #91a6ff; }

/* Public site */
.site-nav {
  position: fixed; z-index: 30; inset: 0 0 auto;
  background: linear-gradient(to bottom, rgba(5,5,5,.94), rgba(5,5,5,.65), transparent);
}
.site-nav-inner { height: 82px; display: flex; align-items: center; justify-content: space-between; }
.brand { display: flex; align-items: center; gap: 11px; font: 600 17px/1 var(--font-display); letter-spacing: .04em; text-transform: uppercase; }
.brand-mark {
  width: 39px; height: 39px; flex: 0 0 39px; display: block; overflow: hidden;
  background: #050505 url("assets/Logo Azul Felipe.png") center / cover no-repeat;
  border-radius: 4px; box-shadow: 0 0 0 1px rgba(255,255,255,.16);
  filter: hue-rotate(180deg) saturate(1.45);
}
.brand span:last-child { color: #8c8b86; font-weight: 400; }
.nav-links { display: flex; align-items: center; gap: 24px; }
.nav-links a { color: #b8b6b0; font-size: 12px; font-weight: 600; }
.nav-links a:hover { color: white; }
.nav-access { display: flex; align-items: center; gap: 7px; }
.nav-access .btn { min-height: 40px; padding-inline: 15px; }
.nav-access .btn-primary { color: white; }
.nav-access .btn-primary:hover { color: white; }
.nav-mobile-access { display: none; align-items: center; gap: 6px; }

.hero {
  position: relative; min-height: 760px; height: min(900px, 100vh); display: grid; align-items: end;
  overflow: hidden; background: #080808;
}
.hero::before {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(90deg, rgba(5,5,8,.94) 0%, rgba(5,5,8,.64) 38%, rgba(5,5,8,.08) 75%),
    linear-gradient(0deg, #0b0b0b 0%, transparent 38%), url("assets/hero-felipe.jpg") 62% center / cover no-repeat;
}
.hero::after {
  content: ""; position: absolute; inset: 0; opacity: .18; pointer-events: none;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.22'/%3E%3C/svg%3E");
}
.hero-inner { position: relative; z-index: 1; padding-bottom: 86px; }
.hero-copy { max-width: 715px; }
.hero h1 {
  margin: 22px 0 24px; font: 600 clamp(70px, 10.4vw, 148px)/.82 var(--font-display);
  letter-spacing: -.045em; text-transform: uppercase;
}
.hero h1 span { display: block; color: transparent; -webkit-text-stroke: 1.5px rgba(240,238,231,.65); }
.hero-lead { max-width: 570px; margin: 0 0 34px; color: #bcbab3; font-size: clamp(15px, 1.4vw, 19px); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 10px; }
.hero-side-note {
  position: absolute; right: 0; bottom: 88px; display: flex; gap: 18px; align-items: center;
  color: #aaa8a1; font: 400 10px/1.4 var(--font-mono); letter-spacing: .12em; text-transform: uppercase;
  writing-mode: vertical-rl;
}
.hero-side-note::before { content: ""; width: 1px; height: 70px; background: var(--accent); }

.marquee { overflow: hidden; border-block: 1px solid var(--line); background: var(--accent); color: white; }
.marquee-track { width: max-content; display: flex; animation: marquee 26s linear infinite; }
.marquee span { padding: 15px 25px; font: 600 12px/1 var(--font-mono); letter-spacing: .1em; text-transform: uppercase; }
@keyframes marquee { to { transform: translateX(-50%); } }

.public-section { padding: 118px 0; }
.section-head { display: grid; grid-template-columns: .6fr 1.4fr; gap: 40px; margin-bottom: 62px; }
.section-head h2 { margin: 0; font: 500 clamp(44px, 6vw, 76px)/.95 var(--font-display); letter-spacing: -.03em; text-transform: uppercase; }
.section-head p { max-width: 580px; margin: 10px 0 0; color: var(--muted); font-size: 15px; }
.about-grid { display: grid; grid-template-columns: 1.2fr .8fr; gap: 20px; }
.about-statement {
  min-height: 455px; padding: 42px; display: flex; flex-direction: column; justify-content: space-between;
  border: 1px solid var(--line); background: var(--panel); overflow: hidden; position: relative;
}
.about-statement::after { content: "DADGAD"; position: absolute; right: -22px; bottom: -35px; color: rgba(255,255,255,.025); font: 700 140px/1 var(--font-display); }
.about-statement blockquote { max-width: 690px; margin: 0; font: 400 clamp(27px, 3.3vw, 44px)/1.2 var(--font-display); text-transform: uppercase; }
.about-statement blockquote em { color: #8299ff; font-style: normal; }
.about-statement small { color: var(--muted); font: 400 11px/1.6 var(--font-mono); }
.stats { display: grid; gap: 20px; }
.stat { padding: 30px; border: 1px solid var(--line); background: #101010; }
.stat strong { display: block; color: #8299ff; font: 500 55px/1 var(--font-display); }
.stat span { display: block; margin-top: 10px; color: var(--muted); font: 400 11px/1.4 var(--font-mono); text-transform: uppercase; letter-spacing: .08em; }

.artists-section { background: var(--paper); color: var(--ink); }
.artists-section .eyebrow { color: #3d5bb8; }
.artists-section .section-head p { color: #6b6a64; }
.artist-grid { display: grid; grid-template-columns: repeat(4, 1fr); grid-auto-rows: 260px; grid-auto-flow: dense; gap: 10px; }
.artist-card { position: relative; overflow: hidden; background: #272727; cursor: default; }
.artist-card:first-child { grid-column: span 2; grid-row: span 2; }
.artist-card:nth-child(6), .artist-card:nth-child(14) { grid-column: span 2; }
.artist-card:nth-child(8) { grid-row: span 2; }
.artist-card::after { content: ""; position: absolute; z-index: 1; inset: 0; background: linear-gradient(165deg, transparent 35%, rgba(0,0,0,.82)); pointer-events: none; }
.artist-card .artist-image {
  width: 100%; height: 100%; object-fit: cover; object-position: var(--pos, 50% 50%);
  filter: grayscale(1); transition: filter .35s, transform .55s;
}
.artist-card:hover .artist-image { filter: grayscale(.2); transform: scale(1.08); }
.artist-label { position: absolute; z-index: 2; inset: auto 22px 20px; }
.artist-label strong { display: block; color: white; font: 500 21px/1 var(--font-display); text-transform: uppercase; }
.artist-label span { color: rgba(255,255,255,.62); font: 400 9px/1 var(--font-mono); letter-spacing: .1em; text-transform: uppercase; }
.artist-note { margin: 18px 0 0; color: #74736e; font-size: 12px; }

.course-card { display: grid; grid-template-columns: 1fr 1fr; min-height: 520px; border: 1px solid var(--line); overflow: hidden; }
.course-visual { position: relative; display: grid; place-items: center; background: var(--accent); color: white; overflow: hidden; }
.course-visual::before { content: "D A D G A D"; position: absolute; inset: 0; display: grid; place-items: center; font: 700 16vw/1 var(--font-display); color: rgba(0,0,0,.07); white-space: nowrap; transform: rotate(-12deg); }
.tuning-disc { width: min(330px, 70%); aspect-ratio: 1; border: 1px solid rgba(0,0,0,.35); border-radius: 50%; display: grid; place-items: center; position: relative; }
.tuning-disc::before, .tuning-disc::after { content: ""; position: absolute; border: 1px solid rgba(0,0,0,.25); border-radius: 50%; inset: 12%; }
.tuning-disc::after { inset: 24%; }
.tuning-disc strong { font: 600 clamp(68px, 8vw, 108px)/1 var(--font-display); z-index: 1; }
.course-copy { padding: clamp(36px, 5vw, 74px); display: flex; flex-direction: column; justify-content: center; background: var(--panel); }
.course-copy h2 { margin: 18px 0 20px; font: 500 clamp(45px, 5vw, 70px)/.95 var(--font-display); text-transform: uppercase; }
.course-copy p { color: var(--muted); margin: 0 0 30px; }
.course-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; margin-bottom: 34px; }
.course-list div { padding-top: 12px; border-top: 1px solid var(--line); font: 400 10px/1.4 var(--font-mono); color: #c5c3bd; text-transform: uppercase; }

.contact-section { padding: 120px 0 55px; background: #070707; }
.contact-big { display: flex; align-items: flex-end; justify-content: space-between; gap: 40px; padding-bottom: 70px; border-bottom: 1px solid var(--line); }
.contact-big h2 { max-width: 790px; margin: 18px 0 0; font: 500 clamp(60px, 9vw, 125px)/.84 var(--font-display); letter-spacing: -.04em; text-transform: uppercase; }
.contact-big h2 span { color: #8299ff; }
.contact-links { display: grid; min-width: 260px; }
.contact-link { display: flex; justify-content: space-between; align-items: center; padding: 17px 0; border-bottom: 1px solid var(--line); color: #c4c2bb; font-size: 13px; }
.contact-link:hover { color: #8299ff; }
.site-footer { display: flex; justify-content: space-between; align-items: center; padding: 28px 0 0; color: #77756f; font: 400 9px/1 var(--font-mono); text-transform: uppercase; letter-spacing: .08em; }

/* Sales page */
.sales-page { background: #090909; }
.sales-hero { position: relative; overflow: hidden; padding: 175px 0 0; background: radial-gradient(circle at 72% 20%, rgba(95,124,255,.2), transparent 31%), linear-gradient(145deg, #0b0b0d, #090909 62%); }
.sales-hero::before { content: ""; position: absolute; inset: 0; opacity: .11; pointer-events: none; background-image: linear-gradient(rgba(255,255,255,.1) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.1) 1px, transparent 1px); background-size: 72px 72px; mask-image: linear-gradient(to bottom, black, transparent 85%); }
.sales-hero-grid { position: relative; display: grid; grid-template-columns: minmax(0, 1.35fr) minmax(310px, .65fr); align-items: center; gap: clamp(45px, 7vw, 100px); padding-bottom: 90px; }
.sales-hero-copy h1 { max-width: 850px; margin: 23px 0 28px; font: 600 clamp(65px, 8.5vw, 122px)/.86 var(--font-display); letter-spacing: -.045em; text-transform: uppercase; }
.sales-hero-copy h1 span { color: transparent; -webkit-text-stroke: 1.4px rgba(130,153,255,.82); }
.sales-hero-copy > p { max-width: 680px; margin: 0; color: #b8b6b0; font-size: clamp(16px, 1.6vw, 20px); line-height: 1.65; }
.sales-hero-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 34px; }
.sales-proof { display: flex; flex-wrap: wrap; gap: 20px; margin-top: 29px; color: #8e8c86; font: 400 10px/1.4 var(--font-mono); text-transform: uppercase; letter-spacing: .06em; }
.sales-proof span { display: inline-flex; align-items: center; gap: 7px; }
.sales-proof .icon { color: #8299ff; }
.sales-anchor-card { position: relative; padding: 34px; border: 1px solid rgba(130,153,255,.35); border-radius: 20px; background: rgba(17,17,20,.88); box-shadow: 0 28px 90px rgba(0,0,0,.42); backdrop-filter: blur(14px); }
.sales-anchor-card > p { margin: 34px 0 0; color: #8a8882; font: 500 10px/1 var(--font-mono); text-transform: uppercase; letter-spacing: .12em; }
.sales-anchor-card > del { display: block; margin: 8px 0 4px; color: #686660; font: 500 23px/1 var(--font-display); }
.sales-anchor-card > strong { display: block; color: white; font: 500 clamp(32px, 3.3vw, 47px)/1 var(--font-display); text-transform: uppercase; }
.sales-anchor-card > strong small { display: block; margin-top: 8px; color: #8299ff; font: 500 10px/1.3 var(--font-mono); text-transform: uppercase; }
.sales-anchor-card ul, .format-card ul, .price-card ul { list-style: none; margin: 28px 0; padding: 0; display: grid; gap: 12px; }
.sales-anchor-card li, .format-card li, .price-card li { display: flex; align-items: center; gap: 9px; color: #c4c2bc; font-size: 11px; }
.sales-anchor-card li .icon, .format-card li .icon, .price-card li .icon { width: 15px; color: #8299ff; flex: 0 0 auto; }
.sales-anchor-card > a { display: flex; align-items: center; justify-content: space-between; padding-top: 20px; border-top: 1px solid var(--line); color: #8299ff; font-size: 12px; font-weight: 700; }
.sales-trust-strip { position: relative; display: grid; grid-template-columns: repeat(4, 1fr); border: 1px solid var(--line); border-bottom: 0; background: rgba(17,17,17,.75); }
.sales-trust-strip div { min-height: 112px; padding: 24px; border-right: 1px solid var(--line); }
.sales-trust-strip div:last-child { border-right: 0; }
.sales-trust-strip strong { display: block; color: #8299ff; font: 500 28px/1 var(--font-display); text-transform: uppercase; }
.sales-trust-strip span { display: block; margin-top: 8px; color: #77756f; font: 400 9px/1.5 var(--font-mono); text-transform: uppercase; }
.sales-section { padding: 120px 0; }
.sales-section[id] { scroll-margin-top: 86px; }
.sales-section-head { display: grid; grid-template-columns: .5fr 1.3fr .8fr; gap: 45px; align-items: start; margin-bottom: 65px; }
.sales-section-head h2, .pricing-heading h2, .experience-grid h2, .faq-grid h2, .portal-copy h2 { margin: 0; font: 500 clamp(44px, 5.8vw, 75px)/.96 var(--font-display); letter-spacing: -.03em; text-transform: uppercase; }
.sales-section-head p { margin: 0; color: var(--muted); font-size: 14px; line-height: 1.75; }
.sales-method { background: var(--paper); color: var(--ink); }
.sales-method .eyebrow { color: #3d5bb8; }
.sales-method .sales-section-head p { color: #696862; }
.method-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; }
.method-grid article { position: relative; min-height: 320px; padding: 27px; display: flex; flex-direction: column; justify-content: flex-end; border: 1px solid rgba(0,0,0,.14); background: #e7e5de; overflow: hidden; }
.method-grid article > span { position: absolute; left: 26px; top: 23px; color: #85837d; font: 500 10px/1 var(--font-mono); }
.method-grid article > .icon { position: absolute; right: 25px; top: 22px; width: 22px; height: 22px; color: #3d5bb8; }
.method-grid h3 { margin: 0 0 12px; font: 500 25px/1.05 var(--font-display); text-transform: uppercase; }
.method-grid p { margin: 0; color: #64635e; font-size: 11px; line-height: 1.65; }
.formats-section { background: #0c0c0c; }
.format-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.format-card { min-height: 550px; padding: clamp(35px, 5vw, 65px); display: flex; flex-direction: column; justify-content: flex-end; border: 1px solid var(--line); border-radius: 2px; background: linear-gradient(145deg, #171717, #101010); }
.format-card.online-format { background: radial-gradient(circle at 83% 15%, rgba(130,153,255,.28), transparent 31%), linear-gradient(145deg, #17204a, #101116 65%); border-color: rgba(130,153,255,.3); }
.format-card h2 { margin: 24px 0 20px; font: 500 clamp(40px, 4.4vw, 62px)/.95 var(--font-display); text-transform: uppercase; letter-spacing: -.03em; }
.format-card > p { max-width: 590px; margin: 0; color: #aaa8a1; font-size: 13px; line-height: 1.75; }
.format-card ul { margin-bottom: 0; }
.portal-showcase { overflow: hidden; background: #e9e7df; color: var(--ink); }
.portal-showcase-grid { display: grid; grid-template-columns: .72fr 1.28fr; align-items: center; gap: clamp(40px, 7vw, 90px); }
.portal-copy .eyebrow { color: #3d5bb8; }
.portal-copy h2 { margin-top: 18px; }
.portal-copy > p { margin: 24px 0 32px; color: #65645e; font-size: 14px; line-height: 1.75; }
.portal-benefits { display: grid; gap: 12px; }
.portal-benefits > div { display: flex; gap: 13px; padding-top: 15px; border-top: 1px solid rgba(0,0,0,.14); }
.portal-benefits > div > .icon { color: #3d5bb8; flex: 0 0 auto; }
.portal-benefits strong, .portal-benefits small { display: block; }
.portal-benefits strong { font-size: 11px; }
.portal-benefits small { margin-top: 4px; color: #77756f; font-size: 9px; line-height: 1.5; }
.device-stage { position: relative; min-height: 580px; display: grid; place-items: center; perspective: 1200px; }
.device-stage::before { content: ""; position: absolute; width: 80%; aspect-ratio: 1; border-radius: 50%; background: rgba(95,124,255,.18); filter: blur(70px); }
.desktop-device { position: relative; z-index: 1; width: min(720px, 93%); padding: 12px 12px 19px; border: 1px solid #343434; border-radius: 16px 16px 8px 8px; background: linear-gradient(145deg, #242424, #050505); box-shadow: 0 35px 60px rgba(0,0,0,.3); transform: rotateY(-7deg) rotateX(2deg); }
.device-camera { width: 4px; height: 4px; margin: -6px auto 7px; border-radius: 50%; background: #686868; }
.desktop-screen { aspect-ratio: 16/10; overflow: hidden; border-radius: 5px; background: #111; }
.desktop-screen img { width: 100%; height: 100%; object-fit: cover; object-position: top; }
.desktop-stand { position: absolute; width: 35%; height: 48px; left: 32.5%; top: 100%; background: linear-gradient(90deg, #303030, #777, #292929); clip-path: polygon(20% 0,80% 0,100% 100%,0 100%); }
.desktop-stand::after { content: ""; position: absolute; left: -24%; right: -24%; bottom: -6px; height: 8px; border-radius: 50%; background: #2b2b2b; }
.phone-device { position: absolute; z-index: 2; width: 185px; right: 1%; bottom: 20px; padding: 11px 7px; border: 2px solid #292929; border-radius: 27px; background: #080808; box-shadow: 0 25px 55px rgba(0,0,0,.42); transform: rotate(4deg); }
.phone-speaker { width: 30%; height: 4px; margin: 0 auto 7px; border-radius: 4px; background: #333; }
.phone-screen { aspect-ratio: 9/18.5; overflow: hidden; border-radius: 16px; background: #eee; }
.phone-screen img { width: 100%; height: 100%; object-fit: cover; object-position: top; }
.experience-section { background: #101010; }
.experience-grid { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(45px, 8vw, 110px); align-items: start; }
.experience-grid h2 { margin-top: 20px; }
.experience-grid p { margin: 4px 0 35px; color: #aaa8a1; font-size: 15px; line-height: 1.85; }
.experience-grid blockquote { margin: 0 0 35px; padding: 25px 0 25px 25px; border-left: 2px solid var(--accent); color: #d6d4cd; font: 400 23px/1.45 var(--font-display); text-transform: uppercase; }
.pricing-section { background: #080808; }
.pricing-heading { display: flex; align-items: flex-end; justify-content: space-between; gap: 50px; margin-bottom: 60px; }
.pricing-heading h2 { margin-top: 18px; }
.price-anchor { min-width: 235px; padding: 20px; border: 1px solid var(--line); background: #101010; }
.price-anchor span, .price-anchor small { display: block; color: #77756f; font: 400 9px/1.45 var(--font-mono); text-transform: uppercase; }
.price-anchor strong { display: block; margin: 7px 0; color: #888680; font: 500 29px/1 var(--font-display); text-decoration: line-through; }
.pricing-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; align-items: stretch; }
.price-card { position: relative; padding: 34px; display: flex; flex-direction: column; border: 1px solid var(--line); background: #121212; }
.price-card.featured { border-color: rgba(130,153,255,.72); background: radial-gradient(circle at 90% 0, rgba(95,124,255,.2), transparent 32%), #15151a; box-shadow: 0 28px 80px rgba(42,64,157,.15); }
.popular-flag, .saving-flag { position: absolute; right: 20px; top: 20px; padding: 7px 10px; border-radius: 99px; font: 500 8px/1 var(--font-mono); text-transform: uppercase; letter-spacing: .08em; }
.popular-flag { color: white; background: var(--accent); }
.saving-flag { color: #9aafff; border: 1px solid rgba(130,153,255,.28); background: rgba(95,124,255,.08); }
.price-card-head > span { color: #77756f; font: 500 9px/1 var(--font-mono); text-transform: uppercase; }
.price-card-head h3 { margin: 12px 0 8px; font: 500 38px/1 var(--font-display); text-transform: uppercase; }
.price-card-head p { min-height: 38px; margin: 0; color: #7d7b75; font-size: 10px; }
.price-block { margin: 28px 0 4px; padding: 23px 0; border-block: 1px solid var(--line); }
.price-block del { display: block; color: #5f5d58; font: 500 14px/1 var(--font-display); }
.price-block > strong { display: block; margin: 7px 0; color: white; font: 500 clamp(41px, 4vw, 55px)/1 var(--font-display); }
.price-block > strong small { color: #8b8983; font: 500 12px/1 var(--font-mono); }
.price-block span { display: block; color: #77756f; font-size: 9px; }
.price-block em { display: inline-block; margin-top: 11px; padding: 5px 8px; color: #9aafff; background: rgba(95,124,255,.1); border-radius: 4px; font: 500 9px/1 var(--font-mono); font-style: normal; }
.price-card ul { flex: 1; margin: 25px 0 30px; }
.price-card .btn { width: 100%; }
.payment-bar { margin-top: 16px; padding: 24px 28px; display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 30px; border: 1px solid var(--line); background: #101010; }
.payment-bar > span { color: #77756f; font: 500 9px/1 var(--font-mono); text-transform: uppercase; }
.payment-bar > div { display: flex; align-items: center; justify-content: center; gap: 17px; }
.payment-bar strong { font-size: 11px; }
.payment-bar i { width: 3px; height: 3px; border-radius: 50%; background: var(--accent); }
.payment-bar small { color: #696761; font-size: 9px; }
.faq-section { background: var(--paper); color: var(--ink); }
.faq-grid { display: grid; grid-template-columns: .75fr 1.25fr; gap: clamp(45px, 8vw, 110px); }
.faq-grid .eyebrow { color: #3d5bb8; }
.faq-grid h2 { margin-top: 19px; }
.faq-grid > div:first-child p { max-width: 360px; color: #6b6963; font-size: 13px; }
.faq-list details { border-top: 1px solid rgba(0,0,0,.17); }
.faq-list details:last-child { border-bottom: 1px solid rgba(0,0,0,.17); }
.faq-list summary { position: relative; padding: 23px 42px 23px 0; list-style: none; cursor: pointer; font-weight: 700; font-size: 13px; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after { content: "+"; position: absolute; right: 4px; top: 16px; color: #3d5bb8; font: 400 26px/1 var(--font-display); }
.faq-list details[open] summary::after { content: "−"; }
.faq-list details p { max-width: 650px; margin: -4px 0 24px; color: #65635d; font-size: 12px; line-height: 1.75; }
.sales-final { padding: 125px 0; text-align: center; background: radial-gradient(circle at 50% 0, rgba(95,124,255,.25), transparent 42%), #090909; }
.sales-final h2 { max-width: 900px; margin: 24px auto; font: 500 clamp(55px, 7.7vw, 100px)/.9 var(--font-display); text-transform: uppercase; letter-spacing: -.04em; }
.sales-final p { max-width: 600px; margin: 0 auto 35px; color: #aaa8a1; font-size: 15px; }
.sales-final > .container > div { display: flex; justify-content: center; flex-wrap: wrap; gap: 10px; }
.sales-footer { padding: 26px 0; border-top: 1px solid var(--line); background: #070707; }
.sales-footer .container { display: flex; justify-content: space-between; color: #77756f; font: 400 9px/1 var(--font-mono); text-transform: uppercase; }

/* App shell */
.app-shell { min-height: 100vh; background: #0d0d0d; }
.sidebar {
  position: fixed; z-index: 20; inset: 0 auto 0 0; width: 248px; display: flex; flex-direction: column;
  padding: 25px 17px 20px; background: #090909; border-right: 1px solid var(--line);
}
.sidebar .brand { padding: 0 8px 27px; border-bottom: 1px solid var(--line); }
.side-label { margin: 29px 10px 10px; color: #5e5d59; font: 500 9px/1 var(--font-mono); text-transform: uppercase; letter-spacing: .14em; }
.side-nav { display: grid; gap: 4px; }
.side-link {
  display: flex; align-items: center; gap: 12px; padding: 11px 12px; color: #8f8d87; border-radius: 9px;
  font-size: 12px; font-weight: 600; cursor: pointer; border: 0; background: transparent; text-align: left;
}
.side-link:hover, .side-link.active { color: white; background: #171717; }
.side-link.active .icon { color: #8299ff; }
.side-badge { margin-left: auto; min-width: 21px; padding: 2px 6px; text-align: center; border-radius: 999px; background: var(--accent); color: white; font: 600 9px/1.4 var(--font-mono); }
.sidebar-bottom { margin-top: auto; }
.backup-note { margin: 0 7px 13px; padding: 13px; border: 1px solid rgba(95,124,255,.2); background: rgba(95,124,255,.07); border-radius: 10px; }
.backup-note strong { display: block; color: #8299ff; font-size: 10px; }
.backup-note span { color: #77756f; font: 400 9px/1.5 var(--font-mono); }
.user-chip { display: flex; align-items: center; gap: 10px; padding: 12px 8px 0; border-top: 1px solid var(--line); }
.avatar { width: 34px; height: 34px; display: grid; place-items: center; border-radius: 50%; background: var(--accent); color: white; font: 600 11px/1 var(--font-mono); }
.professor-avatar {
  background: #050505 url("assets/Logo Azul Felipe.png") center / cover no-repeat;
  border-radius: 4px; filter: hue-rotate(180deg) saturate(1.45);
}
.user-chip strong { display: block; font-size: 11px; }
.user-chip span { display: block; color: #74726c; font-size: 9px; }
.logout-button { flex: 0 0 auto; width: 31px; height: 31px; margin-left: auto; transform: rotate(180deg); }
.app-main { margin-left: 248px; min-height: 100vh; }
.app-topbar { height: 82px; display: flex; align-items: center; justify-content: space-between; padding: 0 36px; border-bottom: 1px solid var(--line); }
.app-topbar h1 { margin: 0; font: 500 24px/1 var(--font-display); text-transform: uppercase; }
.top-actions { display: flex; align-items: center; gap: 8px; }
.mobile-menu { display: none; }
.app-content { padding: 32px 36px 60px; }
.greeting { display: flex; justify-content: space-between; align-items: end; margin-bottom: 26px; }
.greeting h2 { margin: 6px 0 0; font: 500 clamp(34px, 4vw, 50px)/1 var(--font-display); text-transform: uppercase; }
.greeting p { color: var(--muted); margin: 8px 0 0; font-size: 13px; }
.date-chip { color: #85837c; font: 400 10px/1 var(--font-mono); text-transform: uppercase; letter-spacing: .08em; }
.metrics { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin-bottom: 28px; }
.metric { padding: 21px; background: #141414; border: 1px solid var(--line); border-radius: 13px; }
.metric-top { display: flex; justify-content: space-between; color: #6f6d67; }
.metric strong { display: block; margin: 16px 0 3px; font: 500 30px/1 var(--font-display); }
.metric span { color: #77756f; font-size: 10px; }
.metric .trend { color: var(--green); }
.dashboard-grid { display: grid; grid-template-columns: 1.4fr .85fr; gap: 16px; }
.panel { background: #141414; border: 1px solid var(--line); border-radius: 13px; overflow: hidden; }
.panel + .panel { margin-top: 16px; }
.panel-head { display: flex; align-items: center; justify-content: space-between; padding: 20px 21px; border-bottom: 1px solid var(--line); }
.panel-head h3 { margin: 0; font-size: 13px; }
.panel-head p { margin: 4px 0 0; color: #77756f; font-size: 10px; }
.agenda-list { display: grid; }
.agenda-item { display: grid; grid-template-columns: 66px 1fr auto; gap: 15px; align-items: center; padding: 18px 21px; border-bottom: 1px solid var(--line); }
.agenda-item:last-child { border-bottom: 0; }
.agenda-time { font: 500 17px/1 var(--font-mono); }
.agenda-time small { display: block; margin-top: 5px; color: #6d6b65; font-size: 8px; }
.agenda-person { display: flex; align-items: center; gap: 12px; min-width: 0; }
.mini-avatar { flex: 0 0 auto; width: 34px; height: 34px; display: grid; place-items: center; border-radius: 50%; background: #282828; color: #bdbab2; font: 500 10px/1 var(--font-mono); }
.agenda-person strong { display: block; font-size: 12px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.agenda-person span { display: block; color: #77756f; font-size: 9px; }
.agenda-person .agenda-next { margin-top: 5px; color: #b9b7b0; }
.agenda-next b { color: #8299ff; font-weight: 600; }
.agenda-actions { display: flex; gap: 5px; }
.agenda-actions .btn { min-height: 35px; padding-inline: 11px; font-size: 10px; }
.progress-list { padding: 20px; display: grid; gap: 19px; }
.progress-row div:first-child { display: flex; justify-content: space-between; margin-bottom: 8px; font-size: 10px; }
.progress-row div:first-child span { color: #77756f; }
.progress-bar { height: 5px; overflow: hidden; border-radius: 99px; background: #2a2a2a; }
.progress-bar i { display: block; height: 100%; border-radius: inherit; background: var(--accent); }
.backup-card { padding: 23px; background: var(--accent); color: white; }
.backup-card h3 { margin: 12px 0 7px; font: 600 25px/1 var(--font-display); text-transform: uppercase; }
.backup-card p { margin: 0 0 17px; font-size: 11px; opacity: .7; }
.backup-actions { display: flex; gap: 6px; }
.backup-actions .btn { min-height: 37px; padding-inline: 12px; border-color: rgba(255,255,255,.32); color: white; font-size: 10px; }

.toolbar { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 16px; }
.search-box { position: relative; flex: 1; max-width: 420px; }
.search-box .icon { position: absolute; left: 14px; top: 50%; transform: translateY(-50%); color: #77756f; }
.field, .search-box input {
  width: 100%; min-height: 43px; padding: 0 14px; color: white; background: #141414; border: 1px solid var(--line); border-radius: 9px; outline: none; font-size: 12px;
}
.search-box input { padding-left: 42px; }
.field:focus, .search-box input:focus { border-color: rgba(95,124,255,.72); }
textarea.field { min-height: 100px; padding-block: 12px; resize: vertical; }
select.field { appearance: none; }
.data-table { width: 100%; border-collapse: collapse; }
.data-table th { padding: 13px 18px; color: #6f6d67; font: 500 9px/1 var(--font-mono); text-align: left; text-transform: uppercase; letter-spacing: .08em; border-bottom: 1px solid var(--line); }
.data-table td { padding: 16px 18px; font-size: 11px; border-bottom: 1px solid var(--line); }
.data-table tr:last-child td { border-bottom: 0; }
.data-table tr:hover td { background: rgba(255,255,255,.018); }
.student-name { display: flex; align-items: center; gap: 10px; }
.student-name strong { display: block; font-size: 11px; }
.student-name span { display: block; color: #6e6c66; font-size: 9px; }
.row-actions { display: flex; justify-content: flex-end; gap: 4px; }
.empty { padding: 50px 20px; text-align: center; color: #77756f; font-size: 12px; }

/* Student update workflow */
.update-student-btn { white-space: nowrap; }
.update-back { margin: 0 0 20px; }
.update-heading { display: flex; align-items: end; justify-content: space-between; gap: 24px; margin-bottom: 25px; }
.update-student { display: flex; align-items: center; gap: 17px; }
.update-avatar { flex: 0 0 auto; width: 58px; height: 58px; font-size: 16px; }
.update-student h2 { margin: 6px 0 3px; font: 500 clamp(32px, 4vw, 48px)/1 var(--font-display); text-transform: uppercase; }
.update-student p { margin: 0; color: #77756f; font-size: 10px; }
.lesson-finish-banner { display: flex; align-items: center; justify-content: space-between; gap: 20px; margin-bottom: 16px; padding: 15px 18px; color: #ddd9d0; background: rgba(255,194,113,.07); border: 1px solid rgba(255,194,113,.22); border-radius: 12px; }
.lesson-finish-banner > div { display: flex; align-items: center; gap: 12px; }
.lesson-finish-banner > div > .icon { color: #ffc271; }
.lesson-finish-banner strong, .lesson-finish-banner small { display: block; }
.lesson-finish-banner strong { font-size: 11px; }
.lesson-finish-banner small { margin-top: 2px; color: #817e77; font-size: 9px; }
.update-layout { display: grid; grid-template-columns: minmax(0, 1fr) 310px; gap: 16px; align-items: start; }
.update-section { overflow: visible; }
.update-section .panel-head { align-items: flex-start; }
.update-section .panel-head h3 { display: inline; margin-left: 8px; font-size: 14px; }
.update-step { color: #8299ff; font: 500 10px/1 var(--font-mono); }
.update-fields { display: grid; gap: 16px; padding: 21px; }
.update-fields .form-group { display: block; }
.update-fields .form-group > span { display: block; margin-bottom: 8px; color: #888680; font: 500 9px/1 var(--font-mono); text-transform: uppercase; letter-spacing: .07em; }
.update-fields textarea { min-height: 120px; }
.editor-list { display: grid; gap: 9px; padding: 17px 20px; }
.editor-row { display: grid; grid-template-columns: 34px minmax(0, 1fr) 35px; align-items: center; gap: 10px; padding: 11px; background: #191919; border: 1px solid var(--line); border-radius: 11px; }
.editor-row-number { width: 32px; height: 32px; display: grid; place-items: center; color: #91a6ff; background: var(--accent-soft); border-radius: 50%; }
.editor-row-number .icon { width: 14px; }
.editor-row-fields { display: grid; grid-template-columns: 1fr 1fr; gap: 7px; }
.material-editor-row .editor-row-fields { grid-template-columns: 1fr 1fr; }
.material-editor-row .editor-row-fields .field:last-child { grid-column: 1 / -1; }
.editor-row .field { min-height: 39px; background: #121212; }
.editor-remove { width: 34px; height: 34px; color: #77756f; }
.editor-remove:hover { color: #ff8a88; border-color: rgba(255,90,88,.45); }
.editor-footer { padding: 0 20px 20px; }
.check-option { display: flex; align-items: center; gap: 10px; width: fit-content; cursor: pointer; }
.check-option input { position: absolute; opacity: 0; pointer-events: none; }
.check-option > span { width: 23px; height: 23px; display: grid; place-items: center; color: transparent; border: 1px solid var(--line); border-radius: 6px; }
.check-option input:checked + span { color: white; background: var(--accent); border-color: var(--accent); }
.check-option strong, .check-option small { display: block; }
.check-option strong { color: #c9c7c0; font-size: 10px; }
.check-option small { color: #6f6d67; font-size: 8px; }
.material-shortcut { display: flex; align-items: center; justify-content: space-between; gap: 14px; margin: 18px 20px 0; padding: 13px 15px; background: var(--accent-soft); border: 1px solid rgba(95,124,255,.22); border-radius: 10px; }
.material-shortcut > div { display: flex; align-items: center; gap: 11px; }
.material-shortcut > div > .icon { color: #91a6ff; }
.material-shortcut strong, .material-shortcut small { display: block; }
.material-shortcut strong { font-size: 10px; }
.material-shortcut small { color: #74726c; font-size: 8px; }
.empty-editor { padding: 28px 20px; color: #696761; font-size: 10px; text-align: center; }
.hidden { display: none !important; }
.update-side { position: sticky; top: 16px; }
.publish-card { padding: 24px; text-align: center; }
.publish-card h3 { margin: 15px 0 8px; font: 500 30px/1 var(--font-display); text-transform: uppercase; }
.publish-card > p { margin: 0; color: #85837c; font-size: 10px; }
.publish-summary { display: grid; gap: 10px; margin: 22px 0; padding: 17px 0; border-block: 1px solid var(--line); text-align: left; }
.publish-summary div { display: flex; align-items: center; justify-content: space-between; gap: 10px; }
.publish-summary span { color: #77756f; font-size: 9px; }
.publish-summary strong { font: 500 10px/1 var(--font-mono); }
.publish-button { width: 100%; }
.publish-card > .btn-ghost { width: 100%; margin-top: 5px; }
.internal-card { margin-top: 16px; }
.internal-card .update-fields { padding-top: 17px; }
.internal-card textarea { min-height: 125px; }

/* Materials */
.material-feature { display: grid; grid-template-columns: 235px 1fr 170px; gap: clamp(24px, 4vw, 58px); align-items: center; padding: 30px; background: #141414; border: 1px solid var(--line); border-radius: 14px; }
.material-cover { aspect-ratio: .73; display: flex; flex-direction: column; justify-content: space-between; padding: 24px; color: white; background: var(--accent); box-shadow: 14px 17px 0 #242424; }
.material-cover span, .material-cover small { font: 500 9px/1.3 var(--font-mono); letter-spacing: .09em; text-transform: uppercase; }
.material-cover strong { font: 700 83px/1 var(--font-display); }
.material-copy h3 { max-width: 600px; margin: 17px 0 13px; font: 500 clamp(29px, 3.3vw, 46px)/1.04 var(--font-display); text-transform: uppercase; }
.material-copy p { max-width: 650px; margin: 0 0 24px; color: var(--muted); font-size: 11px; }
.material-actions { display: flex; flex-wrap: wrap; gap: 8px; }
.material-facts { display: grid; align-self: stretch; border-left: 1px solid var(--line); }
.material-facts div { display: grid; align-content: center; padding-left: 25px; border-bottom: 1px solid var(--line); }
.material-facts div:last-child { border: 0; }
.material-facts strong { color: #8299ff; font: 500 34px/1 var(--font-display); }
.material-facts span { margin-top: 5px; color: #77756f; font: 400 8px/1 var(--font-mono); text-transform: uppercase; }
.material-section-head { margin-top: 28px; padding-inline: 0; }
.module-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.module-card { min-height: 185px; position: relative; padding: 21px; background: #141414; border: 1px solid var(--line); border-radius: 11px; transition: border-color .2s, transform .2s; }
.module-card:hover { border-color: rgba(95,124,255,.62); transform: translateY(-2px); }
.module-card > span { color: #8299ff; font: 500 8px/1 var(--font-mono); letter-spacing: .09em; text-transform: uppercase; }
.module-card strong { display: block; margin: 19px 0 8px; font: 500 20px/1 var(--font-display); text-transform: uppercase; }
.module-card p { max-width: 240px; margin: 0; color: #77756f; font-size: 9px; }
.module-card > .icon { position: absolute; right: 18px; bottom: 18px; color: #66645e; }

/* Student portal */
.student-shell { min-height: 100vh; background: var(--paper); color: var(--ink); }
.student-nav { height: 76px; border-bottom: 1px solid rgba(0,0,0,.13); }
.student-nav .container { height: 100%; display: flex; align-items: center; justify-content: space-between; }
.student-nav .brand span:last-child { color: #77756f; }
.student-nav .brand-mark { box-shadow: 0 0 0 1px rgba(0,0,0,.16); }
.student-nav-actions { display: flex; align-items: center; gap: 10px; }
.student-nav .btn-outline { color: var(--ink); border-color: rgba(0,0,0,.2); }
.student-hero { padding: 60px 0 40px; }
.student-hero-row { display: flex; align-items: end; justify-content: space-between; gap: 30px; }
.student-hero h1 { margin: 10px 0 0; font: 500 clamp(48px, 7vw, 82px)/.92 var(--font-display); text-transform: uppercase; letter-spacing: -.035em; }
.student-hero h1 span { color: #6c6b65; }
.practice-pill { min-width: 250px; padding: 18px; background: var(--ink); color: white; border-radius: 12px; }
.practice-pill strong { color: #8299ff; font: 500 31px/1 var(--font-display); }
.practice-pill span { margin-left: 7px; color: #aaa8a1; font-size: 10px; }
.student-grid { display: grid; grid-template-columns: 1.25fr .75fr; gap: 18px; padding-bottom: 70px; }
.light-card { background: white; border: 1px solid rgba(0,0,0,.12); border-radius: 14px; overflow: hidden; box-shadow: 0 8px 30px rgba(24,22,18,.04); }
.light-card + .light-card { margin-top: 18px; }
.light-card-head { display: flex; justify-content: space-between; align-items: center; padding: 21px 22px; border-bottom: 1px solid rgba(0,0,0,.1); }
.light-card-head h2 { margin: 0; font: 500 22px/1 var(--font-display); text-transform: uppercase; }
.lesson-focus { padding: 25px 22px; }
.lesson-focus h3 { margin: 9px 0 10px; font: 500 32px/1.1 var(--font-display); text-transform: uppercase; }
.lesson-focus p { margin: 0; color: #6c6a64; font-size: 12px; }
.next-focus { margin: 0 22px 22px; padding: 18px; background: #e9edff; border-left: 3px solid #5f7cff; }
.next-focus small { display: block; color: #3f57a2; font: 500 9px/1 var(--font-mono); text-transform: uppercase; letter-spacing: .1em; }
.next-focus strong { display: block; margin-top: 7px; font-size: 12px; }
.exercise-list { padding: 4px 22px 17px; }
.exercise-item { display: grid; grid-template-columns: auto 1fr auto; gap: 12px; align-items: center; padding: 15px 0; border-bottom: 1px solid rgba(0,0,0,.09); }
.exercise-item:last-child { border: 0; }
.check {
  width: 22px; height: 22px; display: grid; place-items: center; border: 1px solid rgba(0,0,0,.2); border-radius: 50%; background: transparent; color: transparent; cursor: pointer;
}
.check.done { background: var(--ink); border-color: var(--ink); color: #8299ff; }
.exercise-item strong { display: block; font-size: 11px; }
.exercise-item span { display: block; color: #85837c; font-size: 9px; }
.exercise-item time { color: #85837c; font: 400 9px/1 var(--font-mono); }
.student-schedule { padding: 6px 22px 18px; }
.student-class { display: flex; gap: 14px; align-items: center; padding: 16px 0; border-bottom: 1px solid rgba(0,0,0,.09); }
.student-class:last-child { border-bottom: 0; }
.date-box { width: 45px; height: 48px; display: grid; place-items: center; align-content: center; border: 1px solid rgba(0,0,0,.14); }
.date-box strong { font: 500 20px/1 var(--font-display); }
.date-box span { color: #73716a; font: 500 8px/1 var(--font-mono); text-transform: uppercase; }
.student-class-info { flex: 1; }
.student-class-info strong { display: block; font-size: 11px; }
.student-class-info span { color: #77756f; font-size: 9px; }
.join-btn { color: var(--ink); font-size: 9px; font-weight: 700; border-bottom: 1px solid; }
.quick-tools { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; padding: 20px; }
.quick-tool { padding: 17px; color: white; background: var(--ink); border-radius: 10px; }
.quick-tool .icon { color: #8299ff; }
.quick-tool strong { display: block; margin-top: 22px; font: 500 15px/1 var(--font-display); text-transform: uppercase; }
.quick-tool span { color: #85837c; font-size: 8px; }
.note-area { padding: 20px 22px 23px; }
.note-area textarea { min-height: 140px; background: #f5f3ed; color: var(--ink); border-color: rgba(0,0,0,.12); }
.student-workbook-body { padding: 22px; background: linear-gradient(145deg, #edf0ff, white 60%); }
.student-workbook-body h3 { margin: 10px 0 8px; font: 500 25px/1 var(--font-display); text-transform: uppercase; }
.student-workbook-body p { margin: 0 0 18px; color: #6e6c66; font-size: 10px; }
.student-workbook-body > div { display: flex; gap: 7px; }
.student-workbook .btn { min-height: 38px; padding-inline: 13px; font-size: 9px; }
.student-workbook .btn-outline { color: var(--ink); border-color: rgba(0,0,0,.2); }
.assigned-materials { display: grid; gap: 8px; padding: 18px 20px 0; }
.assigned-material { display: grid; grid-template-columns: 32px 1fr auto; align-items: center; gap: 11px; padding: 13px; color: var(--ink); background: #f3f5ff; border: 1px solid rgba(61,91,184,.18); border-radius: 10px; }
.assigned-material:hover { border-color: rgba(61,91,184,.52); }
.assigned-material > span { width: 32px; height: 32px; display: grid; place-items: center; color: #3d5bb8; background: #e5eaff; border-radius: 50%; }
.assigned-material > span .icon { width: 14px; }
.assigned-material strong, .assigned-material small { display: block; }
.assigned-material strong { font-size: 10px; }
.assigned-material small { margin-top: 2px; color: #77756f; font-size: 8px; }
.assigned-material > .icon { width: 14px; color: #77756f; }

/* Login */
.login-shell { min-height: 100vh; display: grid; grid-template-columns: 1.08fr .92fr; position: relative; background: #0a0a0a; }
.login-brand { position: absolute; z-index: 3; left: 38px; top: 31px; }
.login-visual { min-height: 100vh; position: relative; overflow: hidden; background: #090909; }
.login-visual::before {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(0deg, rgba(5,5,5,.92), rgba(5,5,5,.06) 65%), linear-gradient(90deg, transparent 40%, #0a0a0a), url("assets/hero-guitar.png") 63% center / cover no-repeat;
}
.login-visual::after { content: ""; position: absolute; inset: 0; opacity: .12; background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.22'/%3E%3C/svg%3E"); }
.login-visual-copy { position: absolute; z-index: 1; left: 8vw; bottom: 8vh; }
.login-visual-copy strong { display: block; margin-top: 18px; font: 500 clamp(56px, 6.5vw, 100px)/.88 var(--font-display); text-transform: uppercase; letter-spacing: -.04em; }
.login-panel { min-height: 100vh; display: grid; place-items: center; padding: 100px 8vw; background: #0a0a0a; }
.login-card { width: min(420px, 100%); }
.back-link { display: inline-flex; align-items: center; gap: 8px; margin-bottom: 70px; color: #85837c; font-size: 10px; }
.back-link .icon { width: 14px; transform: rotate(180deg); }
.back-link:hover { color: #8299ff; }
.login-card h1 { margin: 17px 0 13px; font: 500 clamp(42px, 5vw, 67px)/.95 var(--font-display); text-transform: uppercase; letter-spacing: -.03em; }
.login-card > p { margin: 0 0 30px; color: #8c8a84; font-size: 12px; }
.login-form { display: grid; gap: 15px; }
.login-form label > span { display: block; margin-bottom: 8px; color: #85837c; font: 500 9px/1 var(--font-mono); letter-spacing: .08em; text-transform: uppercase; }
.login-form .field { min-height: 52px; background: #131313; }
.login-form .btn { width: 100%; min-height: 52px; margin-top: 5px; }
.login-error { margin: -12px 0 20px; padding: 12px 14px; color: #ff9a98; background: rgba(255,90,88,.08); border: 1px solid rgba(255,90,88,.25); border-radius: 9px; font-size: 10px; }
.login-switch { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-top: 27px; padding-top: 20px; border-top: 1px solid var(--line); font-size: 10px; }
.login-switch span { color: #696761; }
.login-switch a { display: inline-flex; align-items: center; gap: 6px; color: #c8c6bf; }
.login-switch a:hover { color: #8299ff; }
.login-switch .icon { width: 13px; }
.login-security { display: block; margin-top: 28px; color: #565550; font: 400 8px/1.5 var(--font-mono); text-transform: uppercase; letter-spacing: .06em; }

/* Modal and toast */
.modal-backdrop { position: fixed; z-index: 60; inset: 0; display: grid; place-items: center; padding: 20px; background: rgba(0,0,0,.76); backdrop-filter: blur(8px); }
.modal { width: min(600px, 100%); max-height: calc(100vh - 40px); overflow: auto; background: #171717; border: 1px solid rgba(255,255,255,.16); border-radius: 16px; box-shadow: var(--shadow); }
.modal-head { position: sticky; top: 0; z-index: 1; display: flex; align-items: center; justify-content: space-between; padding: 20px 22px; background: #171717; border-bottom: 1px solid var(--line); }
.modal-head h2 { margin: 0; font: 500 25px/1 var(--font-display); text-transform: uppercase; }
.modal-body { padding: 22px; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.form-group.full { grid-column: 1 / -1; }
.form-group label { display: block; margin: 0 0 7px; color: #888680; font: 500 9px/1 var(--font-mono); text-transform: uppercase; letter-spacing: .07em; }
.modal-foot { display: flex; justify-content: flex-end; gap: 8px; padding: 17px 22px; border-top: 1px solid var(--line); }
.modal-delete-button { margin-right: auto; }
.row-delete-button { color: #ff918f; border-color: rgba(255,90,88,.22); }
.row-delete-button:hover { color: #ffd0cf; border-color: rgba(255,90,88,.55); background: rgba(255,90,88,.1); }
.delete-warning { display: flex; align-items: flex-start; gap: 16px; padding: 18px; border: 1px solid rgba(255,90,88,.25); border-radius: 12px; background: rgba(255,90,88,.07); }
.delete-warning > .icon { width: 24px; height: 24px; flex: 0 0 auto; color: #ff918f; }
.delete-warning strong { display: block; margin-bottom: 8px; color: white; font-size: 14px; }
.delete-warning p { margin: 0 0 10px; color: #aaa8a1; font-size: 11px; line-height: 1.65; }
.delete-warning small { color: #77756f; font: 400 9px/1.5 var(--font-mono); }
.quote-student-button { color: #61d996; border-color: rgba(79,218,138,.25); }
.quote-student-button:hover { color: #aaf0c9; border-color: rgba(79,218,138,.55); background: rgba(79,218,138,.08); }
.quote-form { display: grid; gap: 18px; }
.quote-recipient { display: flex; align-items: center; gap: 11px; padding-bottom: 16px; border-bottom: 1px solid var(--line); }
.quote-recipient strong, .quote-recipient small { display: block; }
.quote-recipient strong { font-size: 12px; }
.quote-recipient small { margin-top: 4px; color: #77756f; font-size: 9px; }
.quote-plan-options { display: grid; grid-template-columns: repeat(3, 1fr); gap: 7px; }
.quote-plan-options label { position: relative; padding: 13px; border: 1px solid var(--line); border-radius: 10px; cursor: pointer; }
.quote-plan-options input { position: absolute; opacity: 0; pointer-events: none; }
.quote-plan-options label:has(input:checked) { border-color: rgba(95,124,255,.8); background: rgba(95,124,255,.1); }
.quote-plan-options span, .quote-plan-options strong, .quote-plan-options small, .quote-plan-options b { display: block; }
.quote-plan-options strong { font-size: 11px; }
.quote-plan-options small { margin-top: 4px; color: #77756f; font-size: 8px; }
.quote-plan-options b { margin-top: 12px; color: #9aafff; font: 500 16px/1 var(--font-display); }
.quote-preview textarea { min-height: 230px; resize: vertical; color: #aaa8a1; font: 400 10px/1.65 var(--font-mono); }
.quote-send-button { width: 100%; color: #07130c; background: #4fda8a; }
.quote-send-button:hover { background: #6ee5a2; }
.quote-send-button:disabled { opacity: .42; cursor: not-allowed; transform: none; }
.quote-price-editor { margin-top: -7px; border: 1px solid var(--line); border-radius: 10px; background: #121212; }
.quote-price-editor summary { padding: 14px 16px; color: #aaa8a1; cursor: pointer; font-size: 10px; font-weight: 700; }
.quote-price-editor > label { display: block; padding: 0 16px 16px; }
.quote-price-editor > label > span, .quote-price-editor > label > small { display: block; }
.quote-price-editor > label > span { margin-bottom: 7px; color: #77756f; font-size: 9px; }
.quote-price-editor > label > small { margin-top: 7px; color: #686660; font-size: 8px; }
.price-input { position: relative; }
.price-input > span { position: absolute; left: 12px; top: 50%; z-index: 1; transform: translateY(-50%); color: #77756f; font-size: 10px; }
.price-input .field { padding-left: 35px; }
.choice-list { display: grid; gap: 8px; }
.choice-btn { display: flex; align-items: center; gap: 14px; padding: 16px; color: white; background: #202020; border: 1px solid var(--line); border-radius: 10px; cursor: pointer; text-align: left; }
.choice-btn:hover { border-color: var(--accent); }
.choice-btn strong { display: block; font-size: 12px; }
.choice-btn span { display: block; color: #7f7d77; font-size: 9px; }
.toast-region { position: fixed; z-index: 100; right: 18px; bottom: 18px; display: grid; gap: 8px; }
.toast { min-width: 280px; padding: 14px 17px; color: white; background: #232323; border: 1px solid rgba(95,124,255,.48); border-radius: 10px; box-shadow: var(--shadow); font-size: 11px; animation: toast-in .25s both; }
@keyframes toast-in { from { opacity: 0; transform: translateY(8px); } }

@media (max-width: 980px) {
  .nav-links { display: none; }
  .nav-mobile-access { display: flex; }
  .hero-side-note { display: none; }
  .section-head { grid-template-columns: 1fr; gap: 12px; }
  .about-grid, .course-card, .student-grid { grid-template-columns: 1fr; }
  .artist-grid { grid-template-columns: repeat(2, 1fr); }
  .metrics { grid-template-columns: repeat(2, 1fr); }
  .dashboard-grid { grid-template-columns: 1fr; }
  .update-layout { grid-template-columns: 1fr; }
  .update-side { position: static; }
  .material-feature { grid-template-columns: 190px 1fr; }
  .material-facts { display: none; }
  .module-grid { grid-template-columns: repeat(2, 1fr); }
  .sidebar { transform: translateX(-100%); transition: transform .25s; }
  .sidebar.open { transform: none; box-shadow: 30px 0 70px rgba(0,0,0,.6); }
  .app-main { margin-left: 0; }
  .mobile-menu { display: grid; }
  .login-shell { grid-template-columns: .8fr 1.2fr; }
  .login-visual-copy { display: none; }
  .sales-hero-grid, .portal-showcase-grid { grid-template-columns: 1fr; }
  .sales-anchor-card { max-width: 560px; }
  .sales-section-head { grid-template-columns: 1fr 1.5fr; }
  .sales-section-head p { grid-column: 2; }
  .method-grid { grid-template-columns: repeat(2, 1fr); }
  .device-stage { min-height: 620px; }
  .pricing-grid { grid-template-columns: 1fr; }
  .price-card { min-height: 0; }
  .payment-bar { grid-template-columns: 1fr; text-align: center; }
}

@media (max-width: 680px) {
  .container { width: min(calc(100% - 30px), 1180px); }
  .site-nav-inner { height: 66px; }
  .hero { min-height: 700px; }
  .hero::before { background: linear-gradient(0deg, #0b0b0b 4%, rgba(5,5,8,.34) 65%), linear-gradient(90deg, rgba(5,5,8,.88), rgba(5,5,8,.28)), url("assets/hero-felipe.jpg") 68% center / cover no-repeat; opacity: .94; }
  .hero-inner { width: calc(100% - 30px); max-width: calc(100% - 30px); min-width: 0; padding-bottom: 52px; }
  .hero-copy, .hero h1, .hero-lead, .hero-actions { width: 100%; max-width: 100%; min-width: 0; }
  .hero h1 { font-size: clamp(58px, 18vw, 76px); }
  .hero-lead { font-size: 14px; }
  .hero-actions { align-items: stretch; flex-direction: column; }
  .hero-actions .btn { width: 100%; }
  .public-section { padding: 78px 0; }
  .about-statement { min-height: 400px; padding: 27px; }
  .artist-grid { grid-auto-rows: 210px; }
  .artist-card:first-child { grid-column: span 2; }
  .course-card { min-height: 0; }
  .course-visual { min-height: 370px; }
  .course-list { grid-template-columns: 1fr; }
  .contact-big { align-items: flex-start; flex-direction: column; }
  .contact-links { width: 100%; }
  .site-footer { align-items: flex-start; flex-direction: column; gap: 12px; }
  .app-topbar { height: 70px; padding: 0 16px; }
  .app-topbar .top-actions .btn span { display: none; }
  .app-content { padding: 23px 15px 45px; }
  .greeting { align-items: flex-start; flex-direction: column; gap: 13px; }
  .metrics { grid-template-columns: 1fr 1fr; gap: 8px; }
  .metric { padding: 16px; }
  .agenda-item { grid-template-columns: 54px 1fr; }
  .agenda-actions { grid-column: 2; }
  .toolbar { align-items: stretch; flex-direction: column; }
  .search-box { max-width: none; }
  .data-table th:nth-child(3), .data-table td:nth-child(3), .data-table th:nth-child(4), .data-table td:nth-child(4) { display: none; }
  .data-table th, .data-table td { padding-inline: 11px; }
  .update-student-btn { width: 39px; min-height: 39px; padding: 0; border: 1px solid var(--line); border-radius: 50%; font-size: 0; }
  .update-heading { align-items: stretch; flex-direction: column; }
  .update-heading > .btn { width: 100%; }
  .lesson-finish-banner { align-items: flex-start; flex-direction: column; }
  .update-section .panel-head { align-items: flex-start; flex-direction: column; gap: 12px; }
  .update-section .panel-head > .btn { width: 100%; }
  .editor-row { grid-template-columns: 28px minmax(0, 1fr) 32px; padding: 8px; }
  .editor-row-number { width: 28px; height: 28px; }
  .editor-row-fields, .material-editor-row .editor-row-fields { grid-template-columns: 1fr; }
  .material-editor-row .editor-row-fields .field:last-child { grid-column: auto; }
  .material-shortcut { align-items: stretch; flex-direction: column; }
  .material-shortcut .btn { width: 100%; }
  .student-hero { padding-top: 38px; }
  .student-hero-row { align-items: flex-start; flex-direction: column; }
  .practice-pill { width: 100%; }
  .student-nav .brand span:last-child { display: none; }
  .student-nav-actions > .tag { display: none; }
  .student-nav-actions .btn span { display: none; }
  .student-nav-actions .btn { width: 40px; min-height: 40px; padding: 0; }
  .material-feature { grid-template-columns: 1fr; padding: 22px; }
  .material-cover { width: min(220px, 82%); }
  .module-grid { grid-template-columns: 1fr; }
  .form-grid { grid-template-columns: 1fr; }
  .form-group.full { grid-column: auto; }
  .login-shell { display: block; }
  .login-visual { display: none; }
  .login-brand { left: 20px; top: 22px; }
  .login-panel { padding: 120px 20px 55px; }
  .back-link { margin-bottom: 55px; }
  .sales-hero { padding-top: 120px; }
  .sales-hero-grid { gap: 45px; padding-bottom: 60px; }
  .sales-hero-copy h1 { font-size: clamp(56px, 16.5vw, 76px); }
  .sales-hero-actions { align-items: stretch; flex-direction: column; }
  .sales-hero-actions .btn { width: 100%; }
  .sales-proof { align-items: flex-start; flex-direction: column; gap: 9px; }
  .sales-anchor-card { padding: 26px; }
  .sales-trust-strip { grid-template-columns: 1fr 1fr; }
  .sales-trust-strip div { min-height: 100px; padding: 18px; border-bottom: 1px solid var(--line); }
  .sales-trust-strip div:nth-child(2) { border-right: 0; }
  .sales-section { padding: 80px 0; }
  .sales-section-head { grid-template-columns: 1fr; gap: 14px; margin-bottom: 40px; }
  .sales-section-head p { grid-column: auto; }
  .method-grid, .format-grid, .experience-grid, .faq-grid { grid-template-columns: 1fr; }
  .method-grid article { min-height: 260px; }
  .format-card { min-height: 500px; padding: 28px; }
  .portal-showcase-grid { gap: 35px; }
  .device-stage { min-height: 395px; width: calc(100% + 10px); margin-left: -5px; }
  .desktop-device { width: 95%; padding: 7px 7px 12px; border-radius: 10px; transform: rotateY(-3deg); }
  .desktop-stand { height: 31px; }
  .phone-device { width: 105px; right: -2px; bottom: 10px; padding: 7px 4px; border-radius: 18px; }
  .phone-screen { border-radius: 11px; }
  .pricing-heading { align-items: flex-start; flex-direction: column; margin-bottom: 38px; }
  .price-anchor { width: 100%; }
  .price-card { padding: 27px; }
  .popular-flag, .saving-flag { position: static; align-self: flex-start; display: inline-block; margin-bottom: 20px; }
  .payment-bar > div { flex-wrap: wrap; gap: 11px; }
  .faq-grid { gap: 35px; }
  .sales-final { padding: 85px 0; }
  .sales-footer .container { align-items: flex-start; flex-direction: column; gap: 10px; }
  .quote-plan-options { grid-template-columns: 1fr; }
  .quote-plan-options label { display: grid; grid-template-columns: 1fr auto; align-items: center; }
  .quote-plan-options b { grid-column: 2; grid-row: 1; margin-top: 0; }
  .modal-foot { flex-wrap: wrap; }
  .modal-delete-button { width: 100%; margin-right: 0; }
}

@media print {
  .site-nav, .hero-actions, .marquee, .contact-links, .site-footer a { display: none !important; }
  body, .artists-section, .contact-section { background: white !important; color: black !important; }
  .hero { min-height: 500px; height: 500px; break-after: page; }
  .public-section { padding: 40px 0; }
  .course-card, .about-statement, .stat { border-color: #bbb; }
}