:root {
  color-scheme: light;
  --paper: #edf4ff;
  --paper-2: #e3eefc;
  --surface: #ffffff;
  --surface-2: #eaf2fd;
  --ink: #102846;
  --ink-2: #284967;
  --muted: #49627b;
  --line: rgba(25, 67, 117, 0.16);
  --line-strong: rgba(25, 67, 117, 0.28);
  --blue: #124ca5;
  --blue-2: #0c3f91;
  --blue-soft: #dceaff;
  --amber: #eeb34d;
  --coral: #ef795d;
  --mint: #7ecbbb;
  --success: #15735b;
  --shadow: 0 28px 80px rgba(10, 34, 66, 0.13);
  --shadow-soft: 0 14px 42px rgba(10, 34, 66, 0.08);
}

html[data-theme="dark"] {
  color-scheme: dark;
  --paper: #0d1c2e;
  --paper-2: #132b43;
  --surface: #18334f;
  --surface-2: #22425f;
  --ink: #f0f6ff;
  --ink-2: #e2eefb;
  --muted: #cfe0f1;
  --line: rgba(190, 219, 250, 0.17);
  --line-strong: rgba(190, 219, 250, 0.31);
  --blue: #d2e9ff;
  --blue-2: #ebf5ff;
  --blue-soft: #254869;
  --amber: #f0b951;
  --coral: #fa8c70;
  --mint: #74c9b9;
  --success: #71d5b6;
  --shadow: 0 32px 90px rgba(0, 0, 0, 0.34);
  --shadow-soft: 0 16px 46px rgba(0, 0, 0, 0.24);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; font-size: 16px; }
body { margin: 0; min-width: 320px; background: var(--paper); color: var(--ink); font-family: "Avenir Next", Avenir, Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; transition: background 180ms ease, color 180ms ease; }
body.modal-open { overflow: hidden; }
button, input { font: inherit; }
button { color: inherit; }
a { color: inherit; text-decoration: none; }
[hidden] { display: none !important; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }
:is(button, a, input, summary):focus-visible { outline: 3px solid #4d98ff; outline-offset: 3px; }

.section-shell, .nav-shell { width: min(1180px, calc(100% - 2.5rem)); margin-inline: auto; }

.site-header { position: sticky; top: 0; z-index: 40; border-bottom: 1px solid transparent; background: color-mix(in srgb, var(--paper) 85%, transparent); backdrop-filter: blur(18px); transition: border-color 160ms ease, box-shadow 160ms ease; }
.site-header.scrolled { border-bottom-color: var(--line); box-shadow: 0 8px 30px rgba(7, 25, 48, 0.05); }
.nav-shell { min-height: 5rem; display: flex; align-items: center; justify-content: space-between; gap: 2rem; }
.brand-slot { display: inline-flex; align-items: center; border: 0; padding: 0; background: transparent; cursor: pointer; }
.brand-identity { display: inline-flex; align-items: center; gap: 0.65rem; }
.brand-mark { width: 2.45rem; height: 1.95rem; flex: none; overflow: visible; }
.brand-word { color: var(--ink); font-size: 1.22rem; font-weight: 830; letter-spacing: -0.055em; }
.brand-word em { color: var(--blue); font-style: normal; }
.site-nav { display: flex; align-items: center; gap: 2rem; margin-left: auto; }
.site-nav a { position: relative; color: var(--ink-2); font-size: 0.9rem; font-weight: 620; }
.site-nav a::after { content: ""; position: absolute; left: 0; right: 100%; bottom: -0.55rem; height: 2px; background: var(--blue); transition: right 160ms ease; }
.site-nav a:hover::after { right: 0; }
.nav-actions { display: flex; align-items: center; gap: 0.55rem; }

.button { display: inline-flex; min-height: 2.65rem; align-items: center; justify-content: center; gap: 0.55rem; border: 1px solid transparent; border-radius: 0.45rem; padding: 0.68rem 1.05rem; font-weight: 760; font-size: 0.88rem; letter-spacing: -0.01em; cursor: pointer; transition: transform 150ms ease, background 150ms ease, border-color 150ms ease, color 150ms ease; }
.button:hover { transform: translateY(-1px); }
.button-primary { background: var(--blue); color: white; box-shadow: 0 12px 26px color-mix(in srgb, var(--blue) 22%, transparent); }
.button-primary:hover { background: var(--blue-2); }
html[data-theme="dark"] .button-primary { background: #2757aa; color: #fff; }
html[data-theme="dark"] .button-primary:hover { background: #1d498f; }
.button-dark { background: var(--ink); color: var(--paper); }
.button-ghost { border-color: var(--line); background: transparent; }
.button-ghost:hover { border-color: var(--line-strong); background: var(--surface); }
.button-light { background: #f3f8ff; color: #102846; }
.button-link { padding-inline: 0.35rem; background: transparent; color: var(--ink); }
.button-link:hover { color: var(--blue); }
.button-large { min-height: 3.25rem; padding-inline: 1.4rem; font-size: 0.94rem; }
.link-reset { border: 0; padding: 0; background: transparent; cursor: pointer; font-weight: 750; }

.theme-button, .notification-button { width: 2.65rem; height: 2.65rem; display: inline-grid; place-items: center; border: 1px solid var(--line); border-radius: 50%; background: transparent; cursor: pointer; }
.theme-button:hover, .notification-button:hover { border-color: var(--blue); color: var(--blue); }
.theme-button svg { width: 1.05rem; }
.mobile-menu-button { display: none; width: 2.75rem; height: 2.75rem; border: 1px solid var(--line); background: transparent; border-radius: 50%; cursor: pointer; }
.mobile-menu-button span { display: block; width: 1.05rem; height: 1px; margin: 0.28rem auto; background: var(--ink); }
.mobile-menu { display: grid; gap: 0.6rem; padding: 0 1.2rem 1.2rem; border-top: 1px solid var(--line); background: var(--paper); }
.mobile-menu a { padding: 0.7rem 0; border-bottom: 1px solid var(--line); }

.hero { min-height: calc(100vh - 5rem); display: grid; grid-template-columns: minmax(0, 0.88fr) minmax(34rem, 1.12fr); align-items: center; gap: clamp(2rem, 5vw, 5rem); padding-block: clamp(5rem, 10vh, 8rem); }
.hero::before { content: ""; position: absolute; inset: 5rem 0 auto; height: min(72vh, 46rem); z-index: -1; background-image: linear-gradient(var(--line) 1px, transparent 1px), linear-gradient(90deg, var(--line) 1px, transparent 1px); background-size: 5rem 5rem; opacity: 0.28; mask-image: linear-gradient(to right, black, transparent 70%); }
.hero-eyebrow { display: flex; align-items: center; gap: 0.6rem; margin-bottom: 1.25rem; color: var(--ink-2); font-size: 0.77rem; font-weight: 800; letter-spacing: 0.09em; text-transform: uppercase; }
.hero-eyebrow span { width: 1.8rem; height: 0.28rem; background: var(--coral); }
.hero h1 { margin: 0; font-size: clamp(3.2rem, 5.6vw, 5.75rem); line-height: 0.97; letter-spacing: -0.067em; font-weight: 830; }
.hero h1 em { display: inline-block; color: var(--blue); font-family: Georgia, "Times New Roman", serif; font-weight: 500; letter-spacing: -0.055em; }
.hero-lead { max-width: 37rem; margin: 1.65rem 0 0; color: var(--muted); font-size: clamp(1rem, 1.35vw, 1.16rem); line-height: 1.72; }
.hero-actions { display: flex; align-items: center; gap: 1.1rem; margin-top: 2rem; }
.hero-notes { display: flex; flex-wrap: wrap; gap: 1.2rem; margin-top: 1.25rem; color: var(--muted); font-size: 0.78rem; }
.hero-notes b { color: var(--success); }

.hero-product { position: relative; padding-block: 2rem; }
.product-window { position: relative; overflow: hidden; min-height: 34rem; border: 1px solid var(--line-strong); border-radius: 1.15rem; background: var(--surface); box-shadow: var(--shadow); transform: perspective(1200px) rotateY(-2.5deg) rotateX(1deg); }
.window-bar { height: 3.3rem; display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; padding: 0 1rem; border-bottom: 1px solid var(--line); background: color-mix(in srgb, var(--surface) 90%, var(--paper)); color: var(--muted); font-size: 0.68rem; }
.window-dots { display: flex; gap: 0.34rem; }
.window-dots i { width: 0.52rem; height: 0.52rem; border-radius: 50%; background: var(--coral); }
.window-dots i:nth-child(2) { background: var(--amber); }
.window-dots i:nth-child(3) { background: var(--mint); }
.window-avatar { justify-self: end; width: 1.75rem; height: 1.75rem; display: grid; place-items: center; border-radius: 50%; background: #1b4f9f; color: white; font-weight: 800; font-size: .56rem; }
.window-body { min-height: 30.7rem; display: grid; grid-template-columns: 4.2rem 1fr; }
.mini-sidebar { display: flex; flex-direction: column; align-items: center; gap: 1.35rem; padding-top: 1.4rem; border-right: 1px solid var(--line); background: color-mix(in srgb, var(--surface-2) 75%, transparent); }
.mini-logo .brand-mark { width: 2rem; height: 1.55rem; }
.mini-sidebar > i { width: 1.15rem; height: 1.15rem; border: 1.5px solid var(--muted); border-radius: 0.25rem; opacity: 0.48; }
.mini-sidebar > i.active { border-color: var(--blue); background: var(--blue-soft); box-shadow: 0 0 0 0.45rem var(--blue-soft); opacity: 1; }
.mini-main { padding: 2.15rem; }
.mini-header span, .course-preview small { display: block; color: var(--blue); font-size: 0.62rem; font-weight: 850; letter-spacing: 0.12em; }
.mini-header strong { display: block; margin-top: 0.22rem; font-size: 1.32rem; letter-spacing: -0.03em; }
.course-preview { display: grid; grid-template-columns: auto 1fr; align-items: center; gap: 1.4rem; margin-top: 1.55rem; padding: 1.35rem; border: 1px solid var(--line); border-radius: 0.85rem; background: var(--surface); }
.course-ring { width: 5rem; height: 5rem; display: grid; place-items: center; border-radius: 50%; background: conic-gradient(var(--blue) 68%, var(--blue-soft) 0); position: relative; }
.course-ring::after { content: ""; position: absolute; inset: 0.48rem; border-radius: 50%; background: var(--surface); }
.course-ring b { position: relative; z-index: 1; font-size: 1rem; }
.course-preview h3 { margin: 0.25rem 0 0; font-size: 1.12rem; }
.course-preview p { margin: 0.2rem 0 0.8rem; color: var(--muted); font-size: 0.7rem; }
.mini-progress { height: 0.35rem; overflow: hidden; border-radius: 10rem; background: var(--blue-soft); }
.mini-progress i { display: block; width: 68%; height: 100%; border-radius: inherit; background: var(--blue); }
.module-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0.75rem; margin-top: 0.85rem; }
.module-grid article { padding: 1rem 0.8rem; border: 1px solid var(--line); border-radius: 0.75rem; background: var(--surface); }
.module-grid article.focus { border-color: var(--blue); background: var(--blue-soft); }
.module-grid span { color: var(--muted); font-size: 0.6rem; }
.module-grid b { display: block; margin-top: 0.5rem; font-size: 0.75rem; }
.module-grid small { display: block; margin-top: 0.25rem; color: var(--muted); font-size: 0.58rem; }
.model-strip { display: flex; align-items: center; justify-content: space-between; margin-top: 0.85rem; padding: 0.95rem 1rem; border-radius: 0.75rem; background: var(--ink); color: var(--paper); font-size: 0.7rem; }
.model-strip i { display: inline-block; width: 0.5rem; height: 0.5rem; margin-right: 0.45rem; border-radius: 50%; background: var(--mint); }
.floating-note { position: absolute; min-width: 9.5rem; padding: 0.8rem 1rem; border: 1px solid var(--line-strong); border-radius: 0.55rem; background: var(--surface); box-shadow: var(--shadow-soft); }
.floating-note span { display: block; color: var(--muted); font-size: 0.55rem; font-weight: 850; letter-spacing: 0.12em; }
.floating-note strong { display: block; margin-top: 0.25rem; font-size: 0.86rem; }
.note-top { top: 0.2rem; right: -1.1rem; }
.note-bottom { bottom: 0.3rem; left: -1.25rem; }

.principles-strip { border-block: 1px solid var(--line); background: var(--ink); color: var(--paper); }
html[data-theme="dark"] .principles-strip { background: #173e72; color: #f4f9ff; }
.principles-inner { min-height: 4.5rem; display: flex; align-items: center; justify-content: space-between; gap: 1rem; font-size: 0.74rem; font-weight: 780; letter-spacing: 0.05em; text-transform: uppercase; }
.principles-inner i { width: 0.28rem; height: 0.28rem; border-radius: 50%; background: #8abfff; }

.intro, .curriculum { padding-block: clamp(5.5rem, 10vw, 9rem); }
.section-number { color: var(--blue); font-size: 0.7rem; font-weight: 850; letter-spacing: 0.13em; }
.section-number.light { color: #74aaff; }
.intro-grid { display: grid; grid-template-columns: 1.25fr 0.75fr; align-items: end; gap: 5rem; margin-top: 1.4rem; }
.section-heading h2, .workflow-copy h2, .curriculum-heading h2, .final-cta h2 { margin: 0; max-width: 47rem; font-size: clamp(2.5rem, 4.6vw, 4.4rem); line-height: 1.04; letter-spacing: -0.058em; }
.intro-copy p, .curriculum-heading p { margin: 0; color: var(--muted); font-size: 1.02rem; line-height: 1.75; }
.pillar-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; margin-top: 4rem; }
.pillar { min-height: 29rem; display: flex; flex-direction: column; padding: 1.6rem; border: 1px solid var(--line); border-radius: 0.7rem; }
.pillar-blue { background: var(--blue); color: white; }
.pillar-ink { background: var(--ink); color: var(--paper); }
html[data-theme="dark"] .pillar-blue { background: #1d4ca3; color: #fff; }
html[data-theme="dark"] .pillar-ink { background: #16395f; color: #f0f6ff; }
.pillar-warm { background: #cee2ff; color: #102846; }
html[data-theme="dark"] .pillar-warm { background: #315d8d; color: #f0f6ff; }
.pillar-top { display: flex; align-items: center; justify-content: space-between; font-size: 0.66rem; font-weight: 850; letter-spacing: 0.12em; }
.pillar-icon { width: 4rem; height: 4rem; position: relative; margin-top: 3.8rem; }
.icon-book::before, .icon-book::after { content: ""; position: absolute; top: 0; width: 1.7rem; height: 3rem; border: 2px solid currentColor; }
.icon-book::before { left: 0.2rem; border-radius: 1rem 0 0 0; transform: skewY(8deg); }
.icon-book::after { right: 0.2rem; border-radius: 0 1rem 0 0; transform: skewY(-8deg); }
.icon-grid { background-image: linear-gradient(currentColor 2px, transparent 2px), linear-gradient(90deg, currentColor 2px, transparent 2px); background-size: 1.25rem 1.25rem; opacity: 0.9; }
.icon-chart::before { content: ""; position: absolute; inset: 0.3rem; border-left: 2px solid currentColor; border-bottom: 2px solid currentColor; }
.icon-chart::after { content: ""; position: absolute; left: 0.85rem; right: 0.15rem; top: 1.8rem; height: 2px; background: currentColor; transform: rotate(-28deg); box-shadow: 1.35rem -0.85rem 0 currentColor; }
.pillar h3 { margin: 2rem 0 0; font-size: 1.55rem; line-height: 1.16; letter-spacing: -0.035em; }
.pillar p { margin: 0.9rem 0 0; opacity: 0.76; line-height: 1.65; font-size: 0.9rem; }
.pillar a, .pillar button { margin-top: auto; color: inherit; text-align: left; font-size: 0.84rem; }

.workflow-section { background: #173e72; color: #f4f9ff; }
.workflow-grid { display: grid; grid-template-columns: 0.95fr 1.05fr; gap: 7rem; padding-block: clamp(5.5rem, 10vw, 9rem); }
.workflow-copy h2 { margin-top: 1.2rem; }
.workflow-copy p { max-width: 35rem; margin: 1.4rem 0 2rem; color: #aebdd0; line-height: 1.75; }
.workflow-steps { counter-reset: step; }
.workflow-steps article { display: grid; grid-template-columns: 4rem 1fr; gap: 1.3rem; padding: 1.5rem 0; border-top: 1px solid rgba(255,255,255,0.16); }
.workflow-steps article:last-child { border-bottom: 1px solid rgba(255,255,255,0.16); }
.workflow-steps article > span { width: 3rem; height: 3rem; display: grid; place-items: center; border: 1px solid rgba(255,255,255,0.3); border-radius: 50%; color: #a9d3ff; font-family: Georgia, serif; }
.workflow-steps small { color: #74aaff; font-size: 0.62rem; font-weight: 850; letter-spacing: 0.13em; }
.workflow-steps h3 { margin: 0.25rem 0; font-size: 1.3rem; }
.workflow-steps p { margin: 0; color: #aebdd0; font-size: 0.87rem; line-height: 1.6; }

.curriculum-heading { display: grid; grid-template-columns: 1.15fr 0.55fr; gap: 5rem; align-items: end; margin-top: 1.3rem; }
.curriculum-list { margin-top: 4rem; border-top: 1px solid var(--line-strong); }
.curriculum-row { display: grid; grid-template-columns: 4rem 1.1fr 0.9fr auto; align-items: center; gap: 1.5rem; padding: 1.55rem 0.75rem; border-bottom: 1px solid var(--line); transition: background 150ms ease, padding 150ms ease; }
.curriculum-row:hover { padding-inline: 1.2rem; background: var(--surface); }
.module-no { color: var(--muted); font-family: Georgia, serif; font-size: 1.4rem; }
.curriculum-row small { color: var(--blue); font-size: 0.58rem; font-weight: 850; letter-spacing: 0.12em; }
.curriculum-row h3 { margin: 0.3rem 0 0; font-size: 1.14rem; }
.curriculum-row p { margin: 0; color: var(--muted); font-size: 0.86rem; }
.status { min-width: 4.8rem; padding: 0.34rem 0.58rem; border: 1px solid var(--line); border-radius: 3rem; text-align: center; font-size: 0.65rem; font-weight: 800; }
.status.core { border-color: var(--blue); color: var(--blue); }
.status.open { border-color: var(--success); color: var(--success); }

.mission { position: relative; overflow: hidden; background: var(--blue); color: white; }
html[data-theme="dark"] .mission { background: #1d4ca3; }
.mission-pattern { position: absolute; inset: 0; opacity: 0.18; background-image: radial-gradient(circle at center, white 1px, transparent 1.5px); background-size: 1.5rem 1.5rem; mask-image: radial-gradient(circle at 85% 45%, black, transparent 35%); }
.mission-inner { position: relative; padding-block: clamp(5.5rem, 10vw, 9rem); }
.mission blockquote { max-width: 62rem; margin: 1.6rem 0 4rem; font-family: Georgia, "Times New Roman", serif; font-size: clamp(2.35rem, 4.8vw, 4.7rem); line-height: 1.06; letter-spacing: -0.045em; }
.mission-bottom { display: flex; align-items: end; justify-content: space-between; gap: 4rem; border-top: 1px solid rgba(255,255,255,0.34); padding-top: 1.4rem; }
.mission-bottom p { max-width: 42rem; margin: 0; color: #dbe9ff; line-height: 1.7; }
.mission-mark { color: white; }
.mission-mark .brand-mark { width: 4.5rem; height: 3.5rem; }

.final-cta { display: grid; grid-template-columns: 1fr 0.55fr; gap: 5rem; align-items: end; padding-block: clamp(5rem, 9vw, 8rem); }
.final-cta > div > span { color: var(--blue); font-size: 0.68rem; font-weight: 850; letter-spacing: 0.13em; }
.final-cta h2 { margin-top: 1rem; }
.cta-side p { margin: 0 0 1.3rem; color: var(--muted); line-height: 1.7; }

.site-footer { padding: 4rem 0 1.4rem; border-top: 1px solid var(--line); background: var(--surface); }
.footer-grid { display: grid; grid-template-columns: 1.5fr repeat(3, 0.6fr); gap: 3rem; }
.footer-grid > div { display: flex; flex-direction: column; align-items: flex-start; gap: 0.65rem; }
.footer-grid p { color: var(--muted); line-height: 1.6; font-size: 0.85rem; }
.footer-grid strong { margin-bottom: 0.4rem; font-size: 0.76rem; letter-spacing: 0.08em; text-transform: uppercase; }
.footer-grid a, .footer-grid button { color: var(--muted); font-size: 0.83rem; font-weight: 550; }
.footer-grid a:hover, .footer-grid button:hover { color: var(--blue); }
.prototype-badge { display: inline-flex; align-items: center; gap: 0.45rem; color: var(--muted); font-size: 0.78rem; }
.prototype-badge i { width: 0.48rem; height: 0.48rem; border-radius: 50%; background: var(--amber); box-shadow: 0 0 0 0.25rem color-mix(in srgb, var(--amber) 18%, transparent); }
.footer-bottom { display: flex; justify-content: space-between; gap: 2rem; margin-top: 3.5rem; padding-top: 1.2rem; border-top: 1px solid var(--line); color: var(--muted); font-size: 0.72rem; }

/* Dashboard */
.dashboard-shell { display: grid; grid-template-columns: 15.5rem minmax(0, 1fr); min-height: 100vh; background: var(--paper); }
.app-sidebar { position: sticky; top: 0; height: 100vh; display: flex; flex-direction: column; padding: 1.35rem 1rem; border-right: 1px solid var(--line); background: var(--paper-2); }
.app-logo { margin: 0.2rem 0.65rem 2rem; }
.app-nav-label { margin: 0 0.75rem 0.65rem; color: var(--muted); font-size: 0.64rem; font-weight: 850; letter-spacing: 0.12em; text-transform: uppercase; }
.app-nav, .app-sidebar-bottom { display: grid; gap: 0.3rem; }
.app-nav button, .app-sidebar-bottom button { width: 100%; display: flex; align-items: center; gap: 0.72rem; padding: 0.72rem 0.8rem; border: 0; border-radius: 0.52rem; background: transparent; color: var(--muted); text-align: left; font-size: 0.86rem; font-weight: 680; cursor: pointer; }
.app-nav button:hover, .app-sidebar-bottom button:hover { color: var(--ink); background: var(--surface-2); }
.app-nav button.active { color: var(--blue); background: var(--blue-soft); }
.nav-icon { width: 1.25rem; text-align: center; font-size: 1.05rem; }
.app-sidebar-bottom { margin-top: auto; }
.dashboard-main { min-width: 0; }
.dashboard-topbar { min-height: 4.7rem; display: flex; align-items: center; justify-content: space-between; gap: 1rem; padding: 0 2.2rem; border-bottom: 1px solid var(--line); background: color-mix(in srgb, var(--surface) 88%, transparent); backdrop-filter: blur(18px); }
.app-search { width: min(34rem, 60%); position: relative; display: flex; align-items: center; }
.app-search > span { position: absolute; left: 0.85rem; color: var(--muted); font-size: 1.3rem; }
.app-search input { width: 100%; min-height: 2.55rem; padding: 0.65rem 3rem 0.65rem 2.55rem; border: 1px solid var(--line); border-radius: 0.55rem; background: var(--paper); color: var(--ink); outline: none; }
.app-search input:focus { border-color: var(--blue); box-shadow: 0 0 0 3px color-mix(in srgb, var(--blue) 15%, transparent); }
.app-search kbd { position: absolute; right: 0.7rem; padding: 0.12rem 0.3rem; border: 1px solid var(--line); border-radius: 0.25rem; color: var(--muted); font-size: 0.65rem; }
.dashboard-actions { display: flex; align-items: center; gap: 0.55rem; }
.notification-button { font-size: 1rem; }
.dashboard-avatar { width: 2.65rem; height: 2.65rem; display: grid; place-items: center; border: 0; border-radius: 50%; background: #1b4f9f; color: white; font-size: .7rem; font-weight: 850; }
.dashboard-content { width: min(74rem, calc(100% - 3rem)); margin: 0 auto; padding-block: 3rem; }
.dashboard-heading { display: flex; justify-content: space-between; align-items: end; gap: 2rem; margin-bottom: 1.5rem; }
.dashboard-heading > div > span { color: var(--blue); font-size: 0.64rem; font-weight: 850; letter-spacing: 0.12em; }
.dashboard-heading h1 { margin: 0.35rem 0 0; font-size: clamp(2rem, 3vw, 2.8rem); letter-spacing: -0.05em; }
.dashboard-heading p { margin: 0.4rem 0 0; color: var(--muted); }
.dashboard-heading small { color: var(--muted); }
.continue-panel { display: grid; grid-template-columns: auto minmax(0, 1fr) auto; align-items: center; gap: 1.35rem; padding: 1.4rem; border: 1px solid var(--line); border-radius: 0.7rem; background: var(--surface); box-shadow: var(--shadow-soft); }
.continue-visual { width: 4rem; height: 4rem; display: grid; place-items: center; border-radius: 0.6rem; background: var(--blue); color: white; font-family: Georgia, serif; font-weight: 800; }
html[data-theme="dark"] .continue-visual { background: #1d4ca3; }
.continue-main small { color: var(--blue); font-size: 0.58rem; font-weight: 850; letter-spacing: 0.12em; }
.continue-main h2 { margin: 0.25rem 0 0.65rem; font-size: 1.2rem; }
.app-progress { height: 0.35rem; overflow: hidden; border-radius: 2rem; background: var(--blue-soft); }
.app-progress i { display: block; width: 68%; height: 100%; background: var(--blue); }
.progress-meta { display: flex; justify-content: space-between; gap: 1rem; margin-top: 0.45rem; color: var(--muted); font-size: 0.72rem; }
.dashboard-quick-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 0.9rem; margin-top: 0.9rem; }
.dashboard-quick { position: relative; min-height: 10.5rem; padding: 1.2rem; border: 1px solid var(--line); border-radius: 0.65rem; background: var(--surface); text-align: left; cursor: pointer; transition: transform 150ms ease, border-color 150ms ease, box-shadow 150ms ease; }
.dashboard-quick:hover { transform: translateY(-3px); border-color: var(--blue); box-shadow: var(--shadow-soft); }
.dashboard-quick > span { width: 2.6rem; height: 2.6rem; display: grid; place-items: center; border-radius: 0.5rem; background: var(--blue-soft); color: var(--blue); font-size: 1.25rem; }
.dashboard-quick h3 { margin: 0.85rem 0 0.3rem; font-size: 1rem; }
.dashboard-quick p { max-width: 17rem; margin: 0; color: var(--muted); font-size: 0.8rem; line-height: 1.55; }
.dashboard-quick > b { position: absolute; right: 1rem; bottom: 0.85rem; color: var(--blue); }
.dashboard-bottom-grid { display: grid; grid-template-columns: minmax(0, 1.55fr) minmax(16rem, 0.65fr); gap: 0.9rem; margin-top: 0.9rem; }
.dashboard-card { padding: 1.2rem; border: 1px solid var(--line); border-radius: 0.65rem; background: var(--surface); }
.dashboard-panel-head { display: flex; align-items: center; justify-content: space-between; gap: 1rem; margin-bottom: 0.5rem; }
.dashboard-panel-head h2 { margin: 0; font-size: 1rem; }
.dashboard-panel-head button { border: 0; background: transparent; color: var(--blue); font-size: 0.75rem; font-weight: 750; cursor: pointer; }
.activity-item { display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 0.8rem; padding: 0.75rem 0; border-top: 1px solid var(--line); }
.activity-item > span { width: 2.3rem; height: 2.3rem; display: grid; place-items: center; border-radius: 0.5rem; background: var(--surface-2); color: var(--blue); font-weight: 850; }
.activity-item b, .activity-item small { display: block; }
.activity-item b { font-size: 0.83rem; }
.activity-item small, .activity-item time { color: var(--muted); font-size: 0.7rem; }
.week-stat { display: flex; align-items: center; gap: 0.85rem; padding: 0.75rem 0; border-top: 1px solid var(--line); }
.week-stat b { width: 2.2rem; color: var(--blue); font-size: 1.55rem; letter-spacing: -0.05em; }
.week-stat span { color: var(--muted); font-size: 0.76rem; line-height: 1.3; }

/* Auth */
.auth-dialog { width: min(29rem, calc(100% - 2rem)); padding: 2rem; border: 1px solid var(--line-strong); border-radius: 0.8rem; background: var(--surface); color: var(--ink); box-shadow: var(--shadow); }
.auth-dialog::backdrop { background: rgba(3, 13, 27, 0.72); backdrop-filter: blur(8px); }
.dialog-close { position: absolute; top: 0.75rem; right: 0.85rem; border: 0; background: transparent; color: var(--muted); font-size: 1.6rem; cursor: pointer; }
.auth-brand { margin-bottom: 1.5rem; }
.auth-tabs { display: grid; grid-template-columns: 1fr 1fr; padding: 0.25rem; border: 1px solid var(--line); border-radius: 0.5rem; background: var(--paper); }
.auth-tabs button { min-height: 2.35rem; border: 0; border-radius: 0.35rem; background: transparent; color: var(--muted); cursor: pointer; font-weight: 730; }
.auth-tabs button.active { background: var(--surface); color: var(--ink); box-shadow: var(--shadow-soft); }
.auth-copy { margin: 1.6rem 0 1.2rem; }
.auth-copy h2 { margin: 0; font-size: 1.8rem; letter-spacing: -0.045em; }
.auth-copy p { margin: 0.45rem 0 0; color: var(--muted); line-height: 1.5; }
.auth-dialog form { display: grid; gap: 0.9rem; }
.auth-dialog label { display: grid; gap: 0.42rem; font-size: 0.76rem; font-weight: 750; }
.auth-dialog input { min-height: 3rem; padding: 0.78rem 0.85rem; border: 1px solid var(--line); border-radius: 0.45rem; background: var(--paper); color: var(--ink); outline: none; }
.auth-dialog input:focus { border-color: var(--blue); box-shadow: 0 0 0 3px color-mix(in srgb, var(--blue) 15%, transparent); }
.auth-submit { margin-top: 0.35rem; }
.auth-note { margin: 1rem 0 0; color: var(--muted); font-size: 0.68rem; line-height: 1.45; text-align: center; }

.toast { position: fixed; right: 1.2rem; bottom: 1.2rem; z-index: 80; max-width: 23rem; padding: 0.85rem 1rem; border: 1px solid var(--line-strong); border-radius: 0.55rem; background: var(--ink); color: var(--paper); box-shadow: var(--shadow); font-size: 0.82rem; font-weight: 680; opacity: 0; transform: translateY(130%); transition: 180ms ease; }
.toast.show { opacity: 1; transform: translateY(0); }
.reveal { opacity: 0; transform: translateY(1rem); transition: opacity 650ms ease, transform 650ms ease; }
.reveal.visible { opacity: 1; transform: none; }

@media (max-width: 1050px) {
  .site-nav { display: none; }
  .hero { grid-template-columns: 1fr; }
  .hero-copy { max-width: 48rem; }
  .hero-product { max-width: 47rem; width: 100%; margin-inline: auto; }
  .pillar-grid { grid-template-columns: 1fr 1fr; }
  .pillar:last-child { grid-column: 1 / -1; min-height: 24rem; }
  .workflow-grid { gap: 4rem; }
  .footer-grid { grid-template-columns: 1.2fr repeat(3, 0.6fr); gap: 2rem; }
}

@media (max-width: 820px) {
  .nav-actions { display: none; }
  .mobile-menu-button { display: block; }
  .intro-grid, .workflow-grid, .curriculum-heading, .final-cta { grid-template-columns: 1fr; gap: 2rem; }
  .pillar-grid { grid-template-columns: 1fr; }
  .pillar:last-child { grid-column: auto; }
  .pillar { min-height: 25rem; }
  .curriculum-row { grid-template-columns: 3rem 1fr auto; }
  .curriculum-row p { display: none; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .dashboard-shell { grid-template-columns: 5rem minmax(0, 1fr); }
  .app-sidebar { padding-inline: 0.55rem; }
  .app-logo { justify-content: center; margin-inline: 0; }
  .app-logo .brand-word, .app-nav-label, .app-nav button:not(.active) > :not(.nav-icon), .app-nav button > :not(.nav-icon), .app-sidebar-bottom button > :not(.nav-icon) { font-size: 0; }
  .app-nav button, .app-sidebar-bottom button { justify-content: center; }
  .dashboard-bottom-grid { grid-template-columns: 1fr; }
}

@media (max-width: 620px) {
  .section-shell, .nav-shell { width: min(100% - 1.4rem, 1180px); }
  .hero { padding-top: 4rem; }
  .hero h1 { font-size: clamp(2.8rem, 14vw, 4rem); }
  .hero-actions { align-items: stretch; flex-direction: column; }
  .hero-notes { display: grid; gap: 0.5rem; }
  .product-window { min-height: 25rem; transform: none; }
  .window-body { min-height: 21.7rem; grid-template-columns: 3rem 1fr; }
  .mini-main { padding: 1.1rem; }
  .course-preview { grid-template-columns: 1fr; }
  .course-ring { display: none; }
  .module-grid article { padding: 0.65rem 0.45rem; }
  .module-grid small { display: none; }
  .model-strip { font-size: 0.58rem; }
  .floating-note { display: none; }
  .principles-inner { min-height: auto; display: grid; grid-template-columns: 1fr 1fr; padding-block: 1rem; }
  .principles-inner i { display: none; }
  .mission-bottom, .footer-bottom { align-items: flex-start; flex-direction: column; }
  .mission-mark { display: none; }
  .curriculum-row { grid-template-columns: 2.4rem 1fr; gap: 0.8rem; }
  .curriculum-row .status { grid-column: 2; justify-self: start; }
  .footer-grid { grid-template-columns: 1fr; }
  .dashboard-shell { display: block; }
  .app-sidebar { position: sticky; top: 0; z-index: 30; height: auto; flex-direction: row; align-items: center; gap: 0.55rem; overflow-x: auto; padding: 0.65rem 0.8rem; border-right: 0; border-bottom: 1px solid var(--line); }
  .app-logo { margin: 0 auto 0 0; }
  .app-logo .brand-word { display: none; }
  .app-logo .brand-mark { width: 2.15rem; height: 1.7rem; }
  .app-nav { display: flex; gap: 0.2rem; }
  .app-nav button { width: 2.55rem; min-width: 2.55rem; min-height: 2.55rem; padding: 0; font-size: 0; }
  .app-nav button .nav-icon { font-size: 1rem; }
  .app-sidebar-bottom { display: none; }
  .dashboard-topbar { padding-inline: 1rem; }
  .app-search { width: 100%; }
  .notification-button { display: none; }
  .dashboard-content { width: min(100% - 1.2rem, 74rem); padding-block: 1.5rem; }
  .dashboard-heading small { display: none; }
  .continue-panel { grid-template-columns: auto 1fr; }
  .continue-panel > .button { grid-column: 1 / -1; }
  .dashboard-quick-grid { grid-template-columns: 1fr; }
  .activity-item time { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; animation: none !important; }
  .reveal { opacity: 1; transform: none; }
}