/* ==========================================================================
   Swastik AI Lab — design system
   Brand colors live in :root; update these when the final logo arrives.
   ========================================================================== */

@font-face { font-family: "Inter"; src: url("/fonts/inter-400.woff2") format("woff2"); font-weight: 400; font-display: swap; }
@font-face { font-family: "Inter"; src: url("/fonts/inter-600.woff2") format("woff2"); font-weight: 600; font-display: swap; }
@font-face { font-family: "Inter"; src: url("/fonts/inter-800.woff2") format("woff2"); font-weight: 800; font-display: swap; }
@font-face { font-family: "JetBrains Mono"; src: url("/fonts/jetbrains-mono-400.woff2") format("woff2"); font-weight: 400; font-display: swap; }

:root {
    /* Brand */
    --violet: #8b5cf6;
    --violet-soft: #a78bfa;
    --blue: #3b82f6;
    --cyan: #22d3ee;
    --grad: linear-gradient(90deg, var(--violet-soft), var(--cyan));
    --grad-btn: linear-gradient(135deg, #7c3aed, #2563eb 60%, #0891b2);

    /* Dark surfaces */
    --dark: #070b1a;
    --dark-2: #0c1330;
    --dark-line: rgba(148, 163, 255, .14);
    --dark-text: #e6e9f5;
    --dark-muted: #a3acc9;

    /* Light surfaces */
    --bg: #ffffff;
    --bg-alt: #f4f6fb;
    --text: #0f172a;
    --muted: #4b5568;
    --line: #e3e7f0;

    --ok: #34d399;
    --radius: 16px;
    --radius-sm: 10px;
    --shadow: 0 1px 2px rgba(15, 23, 42, .04), 0 8px 24px rgba(15, 23, 42, .06);
    --container: 1180px;
    --header-h: 68px;

    --font: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
    --mono: "JetBrains Mono", ui-monospace, "Cascadia Code", Consolas, monospace;
}

/* ---------- Base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; scroll-padding-top: calc(var(--header-h) + 12px); }
body {
    margin: 0;
    font-family: var(--font);
    font-size: 1rem;
    line-height: 1.65;
    color: var(--text);
    background: var(--bg);
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
    overflow-x: hidden;
}
img, svg, canvas { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
h1, h2, h3 { line-height: 1.15; margin: 0 0 .5em; font-weight: 800; letter-spacing: -.02em; }
h1 { font-size: clamp(2.4rem, 6vw, 4.2rem); }
h2 { font-size: clamp(1.75rem, 3.6vw, 2.6rem); }
h3 { font-size: 1.15rem; font-weight: 600; letter-spacing: -.01em; }
p { margin: 0 0 1em; }
ul, ol { margin: 0; padding: 0; list-style: none; }
strong { font-weight: 600; }
.mono { font-family: var(--mono); }
.center { text-align: center; }
.grad { background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.icon { width: 1.25em; height: 1.25em; flex: none; }

.container { width: 100%; max-width: var(--container); margin: 0 auto; padding: 0 20px; }
.container.narrow { max-width: 860px; }

.skip-link { position: absolute; left: -999px; top: 8px; z-index: 100; background: #fff; color: var(--text); padding: 8px 14px; border-radius: 8px; }
.skip-link:focus { left: 8px; }
:focus-visible { outline: 2px solid var(--cyan); outline-offset: 3px; border-radius: 6px; }

/* ---------- Buttons ---------- */
.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: .5em;
    font: 600 .975rem/1 var(--font);
    padding: .9em 1.4em; border-radius: 999px; border: 1px solid transparent;
    cursor: pointer; white-space: nowrap;
    transition: transform .2s ease, box-shadow .25s ease, background-color .2s ease, border-color .2s ease;
}
.btn .icon { width: 1.1em; height: 1.1em; transition: transform .2s ease; }
.btn:hover .icon { transform: translateX(2px); }
.btn-primary { color: #fff; background: var(--grad-btn); box-shadow: 0 6px 24px rgba(124, 58, 237, .35); }
.btn-primary:hover { transform: translateY(-1px); box-shadow: 0 10px 32px rgba(34, 211, 238, .35); }
.btn-ghost { color: var(--dark-text); border-color: rgba(255, 255, 255, .22); background: rgba(255, 255, 255, .04); }
.btn-ghost:hover { border-color: var(--cyan); background: rgba(34, 211, 238, .08); }
.btn-outline { color: var(--text); border-color: var(--line); background: #fff; }
.btn-outline:hover { border-color: var(--violet); color: var(--violet); }
.btn-sm { padding: .7em 1.15em; font-size: .9rem; }
.btn-lg { padding: 1.05em 1.7em; font-size: 1.02rem; }
.btn-block { width: 100%; }

/* ---------- Header ---------- */
.site-header {
    position: sticky; top: 0; z-index: 50;
    background: rgba(7, 11, 26, .82);
    -webkit-backdrop-filter: saturate(160%) blur(14px);
    backdrop-filter: saturate(160%) blur(14px);
    border-bottom: 1px solid var(--dark-line);
    color: var(--dark-text);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; height: var(--header-h); gap: 16px; }
.brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 800; font-size: 1.15rem; letter-spacing: -.02em; }
.brand img { height: 40px; width: auto; }
.brand-mark svg { filter: drop-shadow(0 0 10px rgba(139, 92, 246, .55)); }
.site-nav { display: flex; align-items: center; gap: 28px; }
.site-nav ul { display: flex; gap: 24px; }
.site-nav ul a { font-size: .94rem; color: var(--dark-muted); transition: color .2s; position: relative; }
.site-nav ul a:hover, .site-nav ul a.active { color: #fff; }
.site-nav ul a::after {
    content: ""; position: absolute; left: 0; right: 0; bottom: -6px; height: 2px;
    background: var(--grad); transform: scaleX(0); transition: transform .25s ease; transform-origin: left;
}
.site-nav ul a:hover::after, .site-nav ul a.active::after { transform: scaleX(1); }
.nav-toggle { display: none; background: none; border: 0; color: #fff; padding: 8px; cursor: pointer; }
.nav-toggle .icon { width: 26px; height: 26px; }
.nav-toggle .icon-close { display: none; }

/* ---------- Dark sections ---------- */
.dark { background: var(--dark); color: var(--dark-text); position: relative; isolation: isolate; overflow: hidden; }
.dark p { color: var(--dark-muted); }
.dark strong { color: var(--dark-text); }
.grid-bg::before {
    content: ""; position: absolute; inset: 0; z-index: -1;
    background-image:
        linear-gradient(var(--dark-line) 1px, transparent 1px),
        linear-gradient(90deg, var(--dark-line) 1px, transparent 1px);
    background-size: 48px 48px;
    -webkit-mask-image: radial-gradient(ellipse at center, #000 30%, transparent 75%);
    mask-image: radial-gradient(ellipse at center, #000 30%, transparent 75%);
    opacity: .6;
}
.hero-glow {
    position: absolute; z-index: -1; pointer-events: none;
    width: 900px; height: 900px; right: -300px; top: -350px;
    background: radial-gradient(circle, rgba(139, 92, 246, .32), rgba(34, 211, 238, .12) 40%, transparent 68%);
    filter: blur(10px);
}

/* ---------- Hero ---------- */
.hero { padding: clamp(56px, 9vw, 112px) 0 clamp(64px, 9vw, 120px); }
.neural-bg { position: absolute; inset: 0; width: 100%; height: 100%; z-index: -1; opacity: .9; }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr); gap: 56px; align-items: center; }
.eyebrow { font-size: .8rem; letter-spacing: .12em; text-transform: uppercase; color: var(--violet) !important; margin-bottom: 1rem; }
.dark .eyebrow { color: var(--cyan) !important; }
.hero h1 { margin-bottom: .2em; }
.hero-sub { font-size: clamp(1.2rem, 2.4vw, 1.6rem); font-weight: 600; color: var(--dark-text) !important; margin-bottom: 1rem; }
.hero-lead { font-size: 1.1rem; max-width: 560px; }
.badge-live {
    display: inline-flex; align-items: center; gap: 10px;
    font-size: .9rem; font-weight: 600; color: var(--dark-text) !important;
    padding: 8px 14px; border-radius: 999px;
    background: rgba(52, 211, 153, .1); border: 1px solid rgba(52, 211, 153, .35);
}
.dot { width: 8px; height: 8px; border-radius: 50%; background: var(--ok); box-shadow: 0 0 0 0 rgba(52, 211, 153, .6); animation: pulse 2s infinite; display: inline-block; }
@keyframes pulse { 0% { box-shadow: 0 0 0 0 rgba(52, 211, 153, .55); } 70% { box-shadow: 0 0 0 10px rgba(52, 211, 153, 0); } 100% { box-shadow: 0 0 0 0 rgba(52, 211, 153, 0); } }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin: 8px 0 28px; }
.hero-points { display: flex; flex-wrap: wrap; gap: 10px 22px; font-size: .92rem; color: var(--dark-muted); }
.hero-points li { display: inline-flex; align-items: center; gap: 8px; }
.hero-points .icon { color: var(--cyan); }

/* Terminal */
.terminal {
    border-radius: var(--radius);
    background: rgba(12, 19, 48, .78);
    border: 1px solid var(--dark-line);
    box-shadow: 0 30px 80px rgba(0, 0, 0, .5), 0 0 0 1px rgba(139, 92, 246, .08), 0 0 60px rgba(139, 92, 246, .18);
    -webkit-backdrop-filter: blur(8px); backdrop-filter: blur(8px);
    overflow: hidden;
}
.terminal-bar { display: flex; align-items: center; gap: 7px; padding: 12px 16px; border-bottom: 1px solid var(--dark-line); background: rgba(255, 255, 255, .02); }
.terminal-bar span { width: 11px; height: 11px; border-radius: 50%; background: #ff5f57; }
.terminal-bar span:nth-child(2) { background: #febc2e; }
.terminal-bar span:nth-child(3) { background: #28c840; }
.terminal-bar p { margin: 0 0 0 10px; font-size: .78rem; color: var(--dark-muted); }
.terminal-body { margin: 0; padding: 20px 22px 24px; font-size: .86rem; line-height: 1.75; color: #c9d1f0; min-height: 360px; white-space: normal; }
.terminal-body code { font-family: inherit; }
.t-line { display: block; min-height: 1.75em; white-space: pre-wrap; overflow-wrap: anywhere; }
.t-k { color: #c4a5ff; }
.t-s { color: #67e8f9; }
.t-c { color: #7c86a8; }
.t-ok { color: var(--ok); }
.t-cursor { display: inline-block; width: 8px; height: 1.1em; background: var(--cyan); vertical-align: text-bottom; margin-left: 4px; animation: blink 1s steps(1) infinite; }
@keyframes blink { 50% { opacity: 0; } }
.js .terminal .t-line { visibility: hidden; }
.js .terminal .t-line.on { visibility: visible; animation: type .45s steps(28, end) both; }
@keyframes type { from { clip-path: inset(0 100% 0 0); } to { clip-path: inset(0 0 0 0); } }

/* ---------- Sections ---------- */
.section { padding: clamp(64px, 9vw, 112px) 0; }
.section-alt { background: var(--bg-alt); }
.section-head { max-width: 720px; margin: 0 auto 48px; text-align: center; }
.section-head p:last-child { color: var(--muted); font-size: 1.08rem; margin: 0; }
.dark .section-head p:last-child { color: var(--dark-muted); }

/* Cards */
.card-grid { display: grid; gap: 22px; grid-template-columns: repeat(3, 1fr); }
.card-grid.four { grid-template-columns: repeat(4, 1fr); }
.card {
    position: relative; padding: 28px; border-radius: var(--radius);
    background: #fff; border: 1px solid var(--line); box-shadow: var(--shadow);
    transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
    display: flex; flex-direction: column;
}
.card p { color: var(--muted); font-size: .97rem; }
.card:hover { transform: translateY(-4px); border-color: rgba(139, 92, 246, .45); box-shadow: 0 18px 44px rgba(76, 29, 149, .12); }
.card-icon {
    width: 48px; height: 48px; border-radius: 12px; display: grid; place-items: center; margin-bottom: 18px;
    color: #fff; background: var(--grad-btn); box-shadow: 0 8px 20px rgba(124, 58, 237, .3);
}
.card-icon .icon { width: 24px; height: 24px; }
.card-level { font-size: .74rem; letter-spacing: .08em; text-transform: uppercase; color: var(--violet) !important; margin-bottom: .4em; }
.card h3 a::after { content: ""; position: absolute; inset: 0; border-radius: inherit; }
.card-link { margin-top: auto; padding-top: 6px; display: inline-flex; align-items: center; gap: 6px; font-weight: 600; font-size: .92rem; color: var(--violet); }
.card-link .icon { width: 1em; transition: transform .2s; }
.card:hover .card-link .icon { transform: translateX(4px); }
.tags { display: flex; flex-wrap: wrap; gap: 6px; margin: 0 0 18px; }
.tags li { font: 500 .74rem/1 var(--mono); padding: 6px 9px; border-radius: 6px; background: var(--bg-alt); color: #475069; border: 1px solid var(--line); }
.checks li { display: flex; gap: 10px; align-items: flex-start; padding: 5px 0; font-size: .95rem; }
.checks .icon { color: var(--violet); margin-top: 3px; width: 1.1em; }

/* Glass cards on dark */
.card.glass { background: rgba(255, 255, 255, .03); border-color: var(--dark-line); box-shadow: none; }
.card.glass p { color: var(--dark-muted); }
.card.glass:hover { border-color: rgba(34, 211, 238, .45); box-shadow: 0 0 0 1px rgba(34, 211, 238, .15), 0 20px 50px rgba(34, 211, 238, .08); }
.card.glass .card-icon { background: rgba(139, 92, 246, .14); color: var(--cyan); box-shadow: inset 0 0 0 1px rgba(139, 92, 246, .35); }

/* Tech list */
.tech-list { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; max-width: 980px; margin: 0 auto; }
.tech-list li {
    font: 500 .92rem/1 var(--mono); padding: 12px 18px; border-radius: 999px;
    background: #fff; border: 1px solid var(--line); box-shadow: var(--shadow);
    transition: border-color .2s, color .2s, transform .2s;
}
.tech-list li:hover { border-color: var(--violet); color: var(--violet); transform: translateY(-2px); }

/* Experiments */
.experiment { border-style: dashed; border-color: #cfd5e6; }
.exp-code { font-size: .74rem; letter-spacing: .1em; color: var(--violet) !important; margin-bottom: .6em; }
.exp-status { margin: auto 0 0; font-size: .78rem; color: #0f766e !important; display: flex; align-items: center; gap: 8px; }
.section-alt .center { margin: 40px 0 0; }

/* Steps */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; counter-reset: s; }
.steps li { position: relative; padding: 26px; border-radius: var(--radius); border: 1px solid var(--line); background: #fff; }
.steps li:not(:last-child)::after {
    content: ""; position: absolute; top: 44px; right: -22px; width: 22px; height: 2px; background: var(--grad);
}
.step-no { display: inline-block; font-size: .85rem; font-weight: 600; padding: 6px 10px; border-radius: 8px; background: var(--dark); color: var(--cyan); margin-bottom: 14px; }
.steps p { color: var(--muted); font-size: .95rem; margin: 0; }

/* FAQ */
.faq-list { display: grid; gap: 12px; }
.faq { border: 1px solid var(--line); border-radius: var(--radius-sm); background: #fff; transition: border-color .2s; }
.faq[open] { border-color: rgba(139, 92, 246, .5); }
.faq summary { display: flex; justify-content: space-between; align-items: center; gap: 16px; padding: 18px 22px; cursor: pointer; list-style: none; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary h3 { margin: 0; font-size: 1.02rem; }
.faq summary .icon { color: var(--violet); transition: transform .25s; }
.faq[open] summary .icon { transform: rotate(180deg); }
.faq p { padding: 0 22px 20px; margin: 0; color: var(--muted); }

/* CTA band */
.cta-band { padding: clamp(64px, 9vw, 104px) 0; text-align: center; }
.cta-band .hero-glow { left: 50%; right: auto; top: -450px; transform: translateX(-50%); }
.cta-inner { max-width: 760px; }
.cta-inner p { font-size: 1.1rem; }

/* Error pages */
.error-hero { min-height: 52vh; display: grid; align-items: center; }
.center-actions { justify-content: center; }
.link-list { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 12px; }
.link-list a { display: flex; justify-content: space-between; align-items: center; padding: 16px 20px; border: 1px solid var(--line); border-radius: var(--radius-sm); font-weight: 600; }
.link-list a:hover { border-color: var(--violet); color: var(--violet); }

/* ---------- Inner pages ---------- */
.page-hero { padding: clamp(40px, 6vw, 72px) 0 clamp(48px, 7vw, 88px); }
.page-hero h1 { font-size: clamp(2rem, 4.6vw, 3.3rem); max-width: 900px; }
.page-hero .hero-lead { max-width: 760px; }
.page-hero .hero-actions { margin-bottom: 0; }
.breadcrumbs { margin-bottom: 28px; font-size: .8rem; }
.breadcrumbs ol { display: flex; flex-wrap: wrap; gap: 6px; }
.breadcrumbs li { display: inline-flex; align-items: center; gap: 6px; color: var(--dark-muted); }
.breadcrumbs li:not(:last-child)::after { content: "/"; opacity: .5; }
.breadcrumbs a:hover { color: var(--cyan); }
.breadcrumbs [aria-current] { color: var(--dark-text); }
.hero-meta { display: flex; flex-wrap: wrap; gap: 8px; margin: 4px 0 26px; }
.hero-meta li { font-size: .78rem; padding: 7px 12px; border-radius: 999px; border: 1px solid var(--dark-line); background: rgba(255, 255, 255, .04); color: var(--dark-text); }

.prose h2 { font-size: clamp(1.5rem, 2.8vw, 2rem); margin: 1.6em 0 .6em; }
.prose h2:first-child { margin-top: 0; }
.prose p { color: #334155; font-size: 1.04rem; }
.prose .lead-p { font-size: 1.12rem; }
.legal h2 { font-size: 1.3rem; }

.course-layout { display: grid; grid-template-columns: minmax(0, 1fr) 340px; gap: 56px; align-items: start; }
.glance { position: sticky; top: calc(var(--header-h) + 24px); }
.glance-card { padding: 26px; border-radius: var(--radius); border: 1px solid var(--line); box-shadow: 0 20px 50px rgba(15, 23, 42, .08); background: #fff; display: grid; gap: 12px; }
.glance-card .eyebrow { margin: 0; }
.glance dl { margin: 0 0 6px; }
.glance dl div { padding: 11px 0; border-bottom: 1px dashed var(--line); }
.glance dt { font: 500 .72rem/1.4 var(--mono); text-transform: uppercase; letter-spacing: .08em; color: var(--muted); }
.glance dd { margin: 2px 0 0; font-weight: 600; }

.checks.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 0 24px; }
.dark-checks li { color: var(--dark-muted); }
.dark-checks .icon { color: var(--cyan); }
.syllabus .checks { padding: 0 22px 18px; }
.card-grid.two { grid-template-columns: repeat(2, 1fr); }
.card-grid.three { grid-template-columns: repeat(3, 1fr); }
.h3 { font-size: 1.2rem; }
.tags.dark-tags li { background: rgba(255, 255, 255, .05); border-color: var(--dark-line); color: var(--dark-muted); }
.tags.roles li { font-size: .82rem; padding: 8px 12px; }

.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius); background: #fff; box-shadow: var(--shadow); }
.compare { width: 100%; border-collapse: collapse; min-width: 560px; }
.compare th, .compare td { text-align: left; padding: 16px 20px; border-bottom: 1px solid var(--line); vertical-align: top; }
.compare thead th { font: 500 .75rem/1.4 var(--mono); text-transform: uppercase; letter-spacing: .08em; color: var(--muted); background: var(--bg-alt); }
.compare tbody th a { color: var(--violet); font-weight: 600; }
.compare tbody th a:hover { text-decoration: underline; }
.compare tr:last-child th, .compare tr:last-child td { border-bottom: 0; }
.compare td { color: var(--muted); }

.project-group:nth-of-type(even) { background: var(--bg-alt); }
.group-head { display: flex; justify-content: space-between; align-items: end; gap: 20px; flex-wrap: wrap; margin-bottom: 28px; }
.group-head h2 { margin: 0; }

/* ---------- Forms ---------- */
.form-layout { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr); gap: 48px; align-items: start; }
.form-card { padding: clamp(22px, 4vw, 36px); border-radius: var(--radius); background: #fff; border: 1px solid var(--line); box-shadow: 0 24px 60px rgba(15, 23, 42, .09); position: relative; }
.form-card::before { content: ""; position: absolute; inset: 0 0 auto; height: 4px; border-radius: var(--radius) var(--radius) 0 0; background: var(--grad-btn); }
.lead-form { display: grid; gap: 16px; margin-top: 12px; }
.field { display: grid; gap: 6px; }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.field label { font-size: .9rem; font-weight: 600; }
.req { color: #dc2626; }
.opt { color: var(--muted); font-weight: 400; }
.lead-form input:not([type=checkbox]), .lead-form select, .lead-form textarea {
    width: 100%; font: 400 1rem/1.4 var(--font); color: var(--text);
    padding: 12px 14px; border-radius: var(--radius-sm); border: 1px solid #cdd3e1; background: #fff;
    transition: border-color .2s, box-shadow .2s;
}
.lead-form select { appearance: none; background-image: linear-gradient(45deg, transparent 50%, #64748b 50%), linear-gradient(135deg, #64748b 50%, transparent 50%); background-position: calc(100% - 18px) 52%, calc(100% - 13px) 52%; background-size: 5px 5px; background-repeat: no-repeat; padding-right: 36px; }
.lead-form textarea { resize: vertical; min-height: 88px; }
.lead-form input:focus, .lead-form select:focus, .lead-form textarea:focus { outline: none; border-color: var(--violet); box-shadow: 0 0 0 4px rgba(139, 92, 246, .15); }
.lead-form .input-validation-error { border-color: #dc2626; }
.field-error { color: #b91c1c; font-size: .85rem; }
.field-error:empty { display: none; }
.form-alert { padding: 12px 14px; border-radius: var(--radius-sm); background: #fef2f2; border: 1px solid #fecaca; color: #991b1b; font-size: .92rem; }
.form-alert.validation-summary-valid { display: none; }
.form-alert ul { margin: 0; }
.check { display: flex; gap: 10px; align-items: flex-start; font-size: .88rem; color: var(--muted); font-weight: 400 !important; cursor: pointer; }
.check input { width: 18px; height: 18px; margin-top: 2px; accent-color: var(--violet); flex: none; }
.check a { color: var(--violet); text-decoration: underline; }
.form-note { display: flex; align-items: center; justify-content: center; gap: 6px; margin: 0; font-size: .84rem; color: var(--muted); }
.form-note .icon { color: #059669; width: 1em; }
.hp { position: absolute !important; left: -10000px; width: 1px; height: 1px; overflow: hidden; }

.form-side h2 { font-size: 1.5rem; }
.mini-steps { display: grid; gap: 18px; margin: 20px 0 28px; }
.mini-steps li { display: flex; gap: 14px; align-items: flex-start; }
.mini-steps .step-no { margin: 0; flex: none; }
.mini-steps h3 { margin: 0 0 2px; font-size: 1rem; }
.mini-steps p { margin: 0; color: var(--muted); font-size: .94rem; }
.side-card { padding: 24px; border-radius: var(--radius); }
.side-card .eyebrow { margin-bottom: .8rem; }
.contact-list { display: grid; gap: 18px; margin: 20px 0 28px; }
.contact-list li { display: flex; gap: 14px; align-items: flex-start; }
.contact-list .card-icon { margin: 0; flex: none; width: 42px; height: 42px; }
.contact-list h3 { margin: 0 0 2px; font-size: 1rem; }
.contact-list p { margin: 0; color: var(--muted); }
.contact-list a { color: var(--violet); }
.side-links li { border-bottom: 1px solid var(--dark-line); }
.side-links li:last-child { border-bottom: 0; }
.side-links a { display: flex; justify-content: space-between; align-items: center; padding: 12px 0; color: var(--dark-text); }
.side-links a:hover { color: var(--cyan); }
.success-mark { width: 72px; height: 72px; margin: 0 auto 22px; border-radius: 50%; display: grid; place-items: center; color: #fff; background: var(--grad-btn); box-shadow: 0 0 0 10px rgba(139, 92, 246, .15), 0 0 60px rgba(34, 211, 238, .4); }
.success-mark .icon { width: 36px; height: 36px; }

/* ---------- Blog ---------- */
.post-card .post-thumb { margin: -28px -28px 18px; aspect-ratio: 16 / 9; overflow: hidden; border-radius: var(--radius) var(--radius) 0 0; background: var(--dark); display: grid; place-items: center; }
.post-card .post-thumb img { width: 100%; height: 100%; object-fit: cover; }
.post-thumb-ph { color: var(--cyan); font-size: .9rem; letter-spacing: .1em; text-transform: uppercase; }
.post-meta { margin: auto 0 0; font-size: .78rem; color: var(--muted) !important; }
.post-hero-img { width: 100%; aspect-ratio: 16 / 9; object-fit: cover; border-radius: var(--radius); margin-bottom: 36px; }
.post-body { font-size: 1.06rem; }
.post-body h2 { font-size: 1.6rem; margin: 1.6em 0 .5em; }
.post-body h3 { font-size: 1.25rem; margin: 1.4em 0 .4em; }
.post-body ul, .post-body ol { margin: 0 0 1.2em; padding-left: 1.4em; color: #334155; }
.post-body ul { list-style: disc; }
.post-body ol { list-style: decimal; }
.post-body li { margin-bottom: .4em; }
.post-body a { color: var(--violet); text-decoration: underline; }
.post-body blockquote { margin: 1.5em 0; padding: 12px 20px; border-left: 3px solid var(--violet); background: var(--bg-alt); border-radius: 0 8px 8px 0; }
.post-body code { font-family: var(--mono); font-size: .9em; background: var(--bg-alt); padding: 2px 6px; border-radius: 5px; }
.post-body pre { background: var(--dark); color: #c9d1f0; padding: 18px; border-radius: 12px; overflow-x: auto; }
.post-body pre code { background: none; padding: 0; color: inherit; }
.post-body table { width: 100%; border-collapse: collapse; margin: 1.5em 0; font-size: .95rem; }
.post-body th, .post-body td { border: 1px solid var(--line); padding: 10px 12px; text-align: left; }
.post-body img { border-radius: 12px; margin: 1.5em 0; }
.post-cta { margin-top: 56px; padding: 28px; border-radius: var(--radius); border: 1px solid var(--line); background: var(--bg-alt); }
.post-cta .hero-actions { margin: 16px 0 0; }
.preview-bar { background: #f59e0b; color: #1f2937; text-align: center; padding: 8px; font-size: .8rem; letter-spacing: .06em; }
.empty-state p { color: var(--muted); font-size: 1.05rem; }
.empty-state a { color: var(--violet); text-decoration: underline; }
.next-batch { font-size: .9rem; }

/* ---------- Footer ---------- */
.site-footer { background: var(--dark); color: var(--dark-muted); padding: 64px 0 24px; border-top: 1px solid var(--dark-line); }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 40px; }
.footer-brand .brand { color: #fff; margin-bottom: 14px; }
.footer-brand p { font-size: .94rem; max-width: 340px; }
.footer-mail { display: inline-flex; align-items: center; gap: 8px; color: var(--dark-text); }
.footer-title { font-size: .8rem; font-family: var(--mono); font-weight: 400; letter-spacing: .12em; text-transform: uppercase; color: var(--cyan); margin-bottom: 16px; }
.site-footer ul li { margin-bottom: 10px; font-size: .94rem; }
.site-footer ul a:hover { color: #fff; }
.footer-bottom { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px; margin-top: 48px; padding-top: 22px; border-top: 1px solid var(--dark-line); font-size: .85rem; }
.footer-bottom p { margin: 0; }

.mobile-cta { display: none; }

/* ---------- Reveal on scroll ---------- */
.js .reveal { opacity: 0; transform: translateY(18px); transition: opacity .6s ease, transform .6s ease; }
.js .reveal.in { opacity: 1; transform: none; }

/* ---------- Responsive ---------- */
@media (max-width: 1080px) {
    .card-grid.four { grid-template-columns: repeat(2, 1fr); }
    .steps { grid-template-columns: repeat(2, 1fr); }
    .steps li::after { display: none; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 960px) {
    .hero-grid { grid-template-columns: minmax(0, 1fr); gap: 44px; }
    .course-layout, .form-layout { grid-template-columns: minmax(0, 1fr); gap: 32px; }
    .glance { position: static; }
    .card-grid.three { grid-template-columns: repeat(2, 1fr); }
    .card-grid { grid-template-columns: repeat(2, 1fr); }
    .nav-toggle { display: inline-flex; }
    .site-nav {
        position: fixed; inset: var(--header-h) 0 auto 0; flex-direction: column; align-items: stretch; gap: 20px;
        padding: 20px 20px 28px; background: var(--dark); border-bottom: 1px solid var(--dark-line);
        transform: translateY(-110%); visibility: hidden; transition: transform .3s ease, visibility .3s;
    }
    .site-nav ul { flex-direction: column; gap: 4px; }
    .site-nav ul a { display: block; padding: 12px 4px; font-size: 1.05rem; }
    .site-nav ul a::after { display: none; }
    .nav-open .site-nav { transform: none; visibility: visible; }
    .nav-open .nav-toggle .icon-open { display: none; }
    .nav-open .nav-toggle .icon-close { display: block; }
}
@media (max-width: 640px) {
    body { padding-bottom: 76px; }
    .container { padding: 0 16px; }
    .card-grid, .card-grid.two, .card-grid.three, .card-grid.four, .steps { grid-template-columns: minmax(0, 1fr); }
    .checks.two-col, .field-row { grid-template-columns: minmax(0, 1fr); }
    .card { padding: 22px; }
    .hero-actions .btn { width: 100%; }
    .terminal-body { font-size: .76rem; min-height: 0; padding: 16px; }
    .footer-grid { grid-template-columns: 1fr; gap: 28px; }
    .mobile-cta {
        display: block; position: fixed; left: 0; right: 0; bottom: 0; z-index: 40;
        padding: 10px 16px calc(10px + env(safe-area-inset-bottom));
        background: rgba(7, 11, 26, .92); border-top: 1px solid var(--dark-line);
        -webkit-backdrop-filter: blur(12px); backdrop-filter: blur(12px);
    }
}

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