/* ============================================================
   Cyberorbit — Brand Theme
   Dark premium · glassmorphism · blue/cyan glow · orbit motion
   ============================================================ */

:root {
    --navy:        #0F172A;  /* primary dark   */
    --navy-deep:   #020617;
    --blue:        #1E3A8A;  /* orbit blue     */
    --cyan:        #3B82F6;  /* neon cyan      */
    --sky:         #60A5FA;  /* sky tech       */
    --white:       #FFFFFF;
    --gray:        #94A3B8;  /* secondary text */
    --surface:     #1E293B;  /* card bg        */
    --surface-2:   #2D3B55;
    --line:        rgba(96, 165, 250, .12);
    --glass:       rgba(15, 23, 42, .55);

    --radius:      18px;
    --radius-sm:   12px;
    --shadow:      0 18px 50px -12px rgba(0, 0, 0, .6);
    --glow-cyan:   0 0 24px rgba(59, 130, 246, .45);
    --glow-blue:   0 0 28px rgba(30, 58, 138, .55);
    --grad-brand:  linear-gradient(135deg, var(--blue) 0%, var(--cyan) 100%);
    --grad-text:   linear-gradient(120deg, var(--sky), var(--cyan) 45%, var(--blue));

    --font-head: 'Space Grotesk', system-ui, sans-serif;
    --font-body: 'Inter', system-ui, -apple-system, sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
    font-family: var(--font-body);
    color: var(--white);
    background:
        radial-gradient(1100px 700px at 80% -10%, rgba(30, 58, 138, .22), transparent 60%),
        radial-gradient(900px 600px at 0% 10%, rgba(59, 130, 246, .12), transparent 55%),
        linear-gradient(180deg, var(--navy) 0%, var(--navy-deep) 100%);
    background-attachment: fixed;
    min-height: 100vh;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5 { font-family: var(--font-head); font-weight: 700; line-height: 1.15; letter-spacing: -.02em; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
::selection { background: var(--cyan); color: var(--navy); }

/* Scrollbar */
::-webkit-scrollbar { width: 11px; height: 11px; }
::-webkit-scrollbar-track { background: var(--navy-deep); }
::-webkit-scrollbar-thumb { background: var(--surface-2); border-radius: 99px; border: 2px solid var(--navy-deep); }
::-webkit-scrollbar-thumb:hover { background: var(--blue); }

/* ── Layout ─────────────────────────────────────────────── */
.container { width: min(1200px, 92%); margin-inline: auto; }
.section { padding: 86px 0; }
.section-sm { padding: 54px 0; }
.center { text-align: center; }
.muted { color: var(--gray); }
.eyebrow {
    display: inline-flex; align-items: center; gap: 8px;
    font-family: var(--font-head); font-size: .8rem; font-weight: 600;
    letter-spacing: .18em; text-transform: uppercase; color: var(--cyan);
    padding: 7px 14px; border-radius: 99px;
    background: rgba(59, 130, 246, .08); border: 1px solid var(--line);
}
.section-title { font-size: clamp(1.8rem, 3.4vw, 2.7rem); margin: 18px 0 10px; }
.section-lead { color: var(--gray); max-width: 620px; }
.center .section-lead { margin-inline: auto; }
.gradient-text { background: var(--grad-text); -webkit-background-clip: text; background-clip: text; color: transparent; }

/* ── Buttons ────────────────────────────────────────────── */
.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 9px;
    font-family: var(--font-head); font-weight: 600; font-size: .95rem;
    padding: 13px 24px; border-radius: 99px; border: 1px solid transparent;
    cursor: pointer; transition: transform .18s ease, box-shadow .25s ease, background .2s; white-space: nowrap;
}
.btn:active { transform: translateY(1px) scale(.99); }
.btn-primary { background: var(--grad-brand); color: var(--white); box-shadow: var(--glow-blue); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 0 36px rgba(30, 58, 138, .8); }
.btn-cyan { background: var(--cyan); color: var(--navy); box-shadow: var(--glow-cyan); }
.btn-cyan:hover { transform: translateY(-2px); box-shadow: 0 0 38px rgba(59, 130, 246, .8); }
.btn-ghost { background: rgba(255, 255, 255, .04); color: var(--white); border-color: var(--line); }
.btn-ghost:hover { border-color: var(--cyan); color: var(--cyan); }
.btn-block { width: 100%; }
.btn-sm { padding: 9px 16px; font-size: .85rem; }

/* ── Glass surfaces ─────────────────────────────────────── */
.glass {
    background: var(--glass);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    box-shadow: var(--shadow);
}
.card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); }

/* ── Navbar ─────────────────────────────────────────────── */
.navbar {
    position: sticky; top: 0; z-index: 50;
    background: rgba(3, 18, 44, .72);
    backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--line);
}
.navbar .container { display: flex; align-items: center; justify-content: space-between; height: 74px; gap: 18px; }
.brand { display: flex; align-items: center; gap: 11px; font-family: var(--font-head); font-weight: 700; font-size: 1.2rem; }
.brand img { width: 38px; height: 38px; border-radius: 10px; box-shadow: var(--glow-cyan); }
.brand .glow-dot { color: var(--cyan); }
.nav-links { display: flex; gap: 28px; align-items: center; }
.nav-links a { color: var(--gray); font-size: .94rem; font-weight: 500; transition: color .2s; }
.nav-links a:hover, .nav-links a.active { color: var(--white); }
.nav-actions { display: flex; gap: 12px; align-items: center; }
.nav-toggle { display: none; background: none; border: 0; color: var(--white); font-size: 1.5rem; cursor: pointer; }

/* ── Hero & orbit ───────────────────────────────────────── */
.hero { position: relative; overflow: hidden; padding: 92px 0 70px; }
.hero-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 50px; align-items: center; }
.hero h1 { font-size: clamp(2.4rem, 5.4vw, 4rem); }
.hero p.lead { color: var(--gray); font-size: 1.12rem; margin: 22px 0 30px; max-width: 540px; }
.hero-cta { display: flex; gap: 14px; flex-wrap: wrap; }
.hero-stats { display: flex; gap: 36px; margin-top: 44px; flex-wrap: wrap; }
.hero-stats .num { font-family: var(--font-head); font-size: 1.9rem; font-weight: 700; color: var(--white); }
.hero-stats .lbl { color: var(--gray); font-size: .85rem; }

/* Orbit animation */
.orbit-wrap { position: relative; display: grid; place-items: center; aspect-ratio: 1; }
.orbit-core {
    width: 130px; height: 130px; border-radius: 50%;
    background: radial-gradient(circle at 35% 30%, var(--sky), var(--blue) 70%);
    box-shadow: 0 0 60px rgba(59, 130, 246, .65), inset 0 0 40px rgba(255, 255, 255, .25);
    position: absolute; z-index: 2;
}
.orbit-core img { width: 100%; height: 100%; object-fit: contain; border-radius: 50%; mix-blend-mode: screen; }
.ring { position: absolute; border-radius: 50%; border: 1.5px solid var(--line); }
.ring::before {
    content: ''; position: absolute; width: 13px; height: 13px; border-radius: 50%;
    background: var(--cyan); box-shadow: var(--glow-cyan);
    top: -7px; left: 50%; transform: translateX(-50%);
}
.ring-1 { width: 56%; height: 56%; border-color: rgba(59, 130, 246, .35); animation: spin 9s linear infinite; }
.ring-2 { width: 76%; height: 76%; border-color: rgba(30, 58, 138, .35); animation: spin 15s linear infinite reverse; }
.ring-3 { width: 96%; height: 96%; border-color: rgba(96, 165, 250, .2); animation: spin 24s linear infinite; }
.ring-2::before { background: var(--blue); box-shadow: var(--glow-blue); }
.ring-3::before { background: var(--sky); }
@keyframes spin { to { transform: rotate(360deg); } }
@keyframes float { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-12px); } }
.floaty { animation: float 6s ease-in-out infinite; }

/* ── Category pills ─────────────────────────────────────── */
.cats { display: flex; flex-wrap: wrap; gap: 12px; }
.cat-pill {
    display: inline-flex; align-items: center; gap: 9px;
    padding: 11px 18px; border-radius: 99px; font-weight: 600; font-size: .9rem;
    background: var(--surface); border: 1px solid var(--line); color: var(--gray);
    transition: all .2s;
}
.cat-pill:hover, .cat-pill.active { color: var(--white); border-color: var(--cyan); box-shadow: var(--glow-cyan); transform: translateY(-2px); }
.cat-pill .dot { width: 9px; height: 9px; border-radius: 50%; background: var(--cyan); }

/* ── Course cards ───────────────────────────────────────── */
.grid { display: grid; gap: 24px; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }

.course-card {
    border-radius: var(--radius); overflow: hidden; background: var(--surface);
    border: 1px solid var(--line); transition: transform .22s ease, box-shadow .25s ease, border-color .2s;
    display: flex; flex-direction: column;
}
.course-card:hover { transform: translateY(-6px); border-color: rgba(59, 130, 246, .5); box-shadow: 0 24px 60px -18px rgba(30, 58, 138, .5); }
.course-thumb { position: relative; aspect-ratio: 16/9; overflow: hidden; }
.course-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s; }
.course-card:hover .course-thumb img { transform: scale(1.07); }
.course-thumb .chip {
    position: absolute; top: 12px; left: 12px; font-size: .72rem; font-weight: 700;
    padding: 5px 11px; border-radius: 99px; background: rgba(3, 18, 44, .8);
    border: 1px solid var(--line); backdrop-filter: blur(6px); color: var(--cyan);
}
.course-thumb .price-chip { left: auto; right: 12px; color: var(--white); background: var(--grad-brand); border: 0; }
.course-body { padding: 18px; display: flex; flex-direction: column; gap: 10px; flex: 1; }
.course-body h3 { font-size: 1.08rem; }
.course-meta { display: flex; align-items: center; gap: 14px; color: var(--gray); font-size: .82rem; flex-wrap: wrap; }
.course-meta span { display: inline-flex; align-items: center; gap: 5px; }
.course-instr { display: flex; align-items: center; gap: 9px; color: var(--gray); font-size: .85rem; margin-top: auto; }
.course-instr img { width: 28px; height: 28px; border-radius: 50%; }
.course-foot { display: flex; align-items: center; justify-content: space-between; padding-top: 12px; border-top: 1px solid var(--line); }
.stars { color: var(--cyan); font-size: .85rem; letter-spacing: 1px; }
.price { font-family: var(--font-head); font-weight: 700; font-size: 1.15rem; }
.price .free { color: var(--cyan); }

/* ── Badges & tags ──────────────────────────────────────── */
.badge { display: inline-flex; align-items: center; gap: 6px; font-size: .74rem; font-weight: 600; padding: 4px 11px; border-radius: 99px; background: rgba(59, 130, 246, .1); color: var(--cyan); border: 1px solid var(--line); }
.badge-blue { background: rgba(30, 58, 138, .14); color: var(--sky); }
.tag { font-size: .78rem; padding: 5px 11px; border-radius: 8px; background: var(--surface-2); color: var(--gray); border: 1px solid var(--line); }

/* ── Feature / path / step cards ────────────────────────── */
.feature { padding: 26px; border-radius: var(--radius); background: var(--surface); border: 1px solid var(--line); transition: all .2s; }
.feature:hover { border-color: var(--cyan); transform: translateY(-4px); }
.feature .ic { width: 52px; height: 52px; display: grid; place-items: center; border-radius: 14px; background: var(--grad-brand); font-size: 1.4rem; margin-bottom: 16px; box-shadow: var(--glow-blue); }
.feature h3 { font-size: 1.15rem; margin-bottom: 8px; }
.feature p { color: var(--gray); font-size: .92rem; }

/* ── Stats strip ────────────────────────────────────────── */
.stats-strip { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.stat-card { text-align: center; padding: 28px 18px; }
.stat-card .num { font-family: var(--font-head); font-size: 2.3rem; font-weight: 700; background: var(--grad-text); -webkit-background-clip: text; background-clip: text; color: transparent; }
.stat-card .lbl { color: var(--gray); font-size: .9rem; margin-top: 6px; }

/* ── Pricing ────────────────────────────────────────────── */
.pricing-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; align-items: stretch; }
.price-card { padding: 32px 28px; border-radius: var(--radius); background: var(--surface); border: 1px solid var(--line); display: flex; flex-direction: column; position: relative; transition: all .25s; }
.price-card:hover { transform: translateY(-6px); border-color: rgba(59, 130, 246, .4); }
.price-card.popular { border-color: var(--cyan); box-shadow: var(--glow-cyan); background: linear-gradient(180deg, rgba(30, 58, 138, .14), var(--surface)); }
.price-card .pop-flag { position: absolute; top: -13px; left: 50%; transform: translateX(-50%); background: var(--grad-brand); color: #fff; font-size: .72rem; font-weight: 700; padding: 5px 16px; border-radius: 99px; box-shadow: var(--glow-blue); }
.price-card h3 { font-size: 1.4rem; }
.price-card .amt { font-family: var(--font-head); font-size: 2.6rem; font-weight: 700; margin: 12px 0 2px; }
.price-card .amt small { font-size: 1rem; color: var(--gray); font-weight: 500; }
.price-card ul { list-style: none; margin: 22px 0; display: flex; flex-direction: column; gap: 12px; flex: 1; }
.price-card li { display: flex; gap: 10px; color: var(--gray); font-size: .92rem; }
.price-card li::before { content: '✦'; color: var(--cyan); }

/* ── Testimonials ───────────────────────────────────────── */
.quote { padding: 26px; border-radius: var(--radius); background: var(--surface); border: 1px solid var(--line); }
.quote p { color: var(--white); font-size: .98rem; margin-bottom: 18px; }
.quote .who { display: flex; align-items: center; gap: 12px; }
.quote .who img { width: 44px; height: 44px; border-radius: 50%; }
.quote .who b { display: block; font-family: var(--font-head); }
.quote .who span { color: var(--gray); font-size: .82rem; }

/* ── Partners ───────────────────────────────────────────── */
.partners { display: flex; flex-wrap: wrap; gap: 16px; justify-content: center; }
.partner { padding: 14px 26px; border-radius: 12px; background: var(--surface); border: 1px solid var(--line); color: var(--gray); font-family: var(--font-head); font-weight: 600; letter-spacing: .04em; }

/* ── FAQ ────────────────────────────────────────────────── */
.faq-item { border: 1px solid var(--line); border-radius: var(--radius-sm); margin-bottom: 12px; background: var(--surface); overflow: hidden; }
.faq-item summary { padding: 18px 22px; cursor: pointer; font-family: var(--font-head); font-weight: 600; list-style: none; display: flex; justify-content: space-between; align-items: center; }
.faq-item summary::after { content: '+'; color: var(--cyan); font-size: 1.4rem; }
.faq-item[open] summary::after { content: '−'; }
.faq-item p { padding: 0 22px 20px; color: var(--gray); }

/* ── Forms ──────────────────────────────────────────────── */
.field { margin-bottom: 16px; }
.field label { display: block; font-size: .85rem; color: var(--gray); margin-bottom: 7px; font-weight: 500; }
.input, select.input, textarea.input {
    width: 100%; padding: 13px 16px; border-radius: var(--radius-sm);
    background: var(--navy-deep); border: 1px solid var(--line); color: var(--white);
    font-family: var(--font-body); font-size: .95rem; transition: border-color .2s, box-shadow .2s;
}
.input:focus { outline: none; border-color: var(--cyan); box-shadow: var(--glow-cyan); }
.input::placeholder { color: #5f6f8a; }
.auth-wrap { min-height: calc(100vh - 74px); display: grid; place-items: center; padding: 40px 0; }
.auth-card { width: min(440px, 92%); padding: 38px; }
.auth-card h1 { font-size: 1.7rem; margin-bottom: 6px; }
.divider { display: flex; align-items: center; gap: 12px; color: var(--gray); font-size: .8rem; margin: 20px 0; }
.divider::before, .divider::after { content: ''; flex: 1; height: 1px; background: var(--line); }
.alert { padding: 12px 16px; border-radius: var(--radius-sm); font-size: .9rem; margin-bottom: 16px; }
.alert-error { background: rgba(255, 92, 92, .12); border: 1px solid rgba(255, 92, 92, .4); color: #ffb3b3; }
.alert-success { background: rgba(0, 210, 168, .12); border: 1px solid rgba(0, 210, 168, .4); color: #9af2da; }
.field-error { color: #ff9a9a; font-size: .8rem; margin-top: 6px; }

/* ── Footer ─────────────────────────────────────────────── */
.footer { border-top: 1px solid var(--line); padding: 56px 0 30px; margin-top: 40px; background: rgba(2, 17, 46, .6); }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: 36px; }
.footer h4 { font-size: .95rem; margin-bottom: 16px; color: var(--white); }
.footer a { display: block; color: var(--gray); font-size: .9rem; margin-bottom: 10px; transition: color .2s; }
.footer a:hover { color: var(--cyan); }
.footer-bottom { display: flex; justify-content: space-between; align-items: center; margin-top: 40px; padding-top: 22px; border-top: 1px solid var(--line); color: var(--gray); font-size: .85rem; flex-wrap: wrap; gap: 12px; }

/* ── Course detail ──────────────────────────────────────── */
.detail-hero { padding: 50px 0; }
.detail-grid { display: grid; grid-template-columns: 1.7fr 1fr; gap: 36px; align-items: start; }
.detail-banner { border-radius: var(--radius); overflow: hidden; border: 1px solid var(--line); aspect-ratio: 16/9; }
.detail-banner img { width: 100%; height: 100%; object-fit: cover; }
.buy-card { padding: 24px; position: sticky; top: 92px; }
.learn-list { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.learn-list li { list-style: none; display: flex; gap: 10px; color: var(--gray); }
.learn-list li::before { content: '✓'; color: var(--cyan); font-weight: 700; }
.curriculum-sec { border: 1px solid var(--line); border-radius: var(--radius-sm); margin-bottom: 12px; overflow: hidden; background: var(--surface); }
.curriculum-sec > summary { padding: 16px 20px; cursor: pointer; font-family: var(--font-head); font-weight: 600; list-style: none; display: flex; justify-content: space-between; }
.lesson-row { display: flex; align-items: center; gap: 12px; padding: 13px 20px; border-top: 1px solid var(--line); color: var(--gray); font-size: .92rem; }
.lesson-row .ic { color: var(--cyan); }
.lesson-row .lock { margin-left: auto; opacity: .6; }

/* ============================================================
   ADMIN PANEL
   ============================================================ */
.admin-shell { display: grid; grid-template-columns: 264px 1fr; min-height: 100vh; }
.sidebar { background: rgba(2, 17, 46, .85); border-right: 1px solid var(--line); padding: 22px 16px; position: sticky; top: 0; height: 100vh; overflow-y: auto; }
.sidebar .brand { padding: 6px 10px 22px; }
.side-label { font-size: .72rem; letter-spacing: .14em; text-transform: uppercase; color: #5f6f8a; padding: 16px 12px 8px; }
.side-link { display: flex; align-items: center; gap: 12px; padding: 11px 14px; border-radius: var(--radius-sm); color: var(--gray); font-weight: 500; font-size: .92rem; margin-bottom: 4px; transition: all .18s; }
.side-link:hover { background: rgba(59, 130, 246, .06); color: var(--white); }
.side-link.active { background: var(--grad-brand); color: #fff; box-shadow: var(--glow-blue); }
.side-link .ic { width: 20px; text-align: center; }
.admin-main { display: flex; flex-direction: column; min-width: 0; }
.topbar { height: 70px; border-bottom: 1px solid var(--line); display: flex; align-items: center; justify-content: space-between; padding: 0 28px; background: rgba(3, 18, 44, .6); backdrop-filter: blur(10px); position: sticky; top: 0; z-index: 20; }
.topbar h1 { font-size: 1.25rem; }
.admin-body { padding: 28px; }
.admin-user { display: flex; align-items: center; gap: 10px; }
.admin-user img { width: 38px; height: 38px; border-radius: 50%; border: 1px solid var(--line); }

.kpi-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); gap: 18px; margin-bottom: 26px; }
.kpi { padding: 22px; border-radius: var(--radius); background: var(--surface); border: 1px solid var(--line); position: relative; overflow: hidden; }
.kpi::after { content: ''; position: absolute; right: -30px; top: -30px; width: 110px; height: 110px; border-radius: 50%; background: var(--grad-brand); opacity: .12; }
.kpi .ic { width: 44px; height: 44px; border-radius: 12px; display: grid; place-items: center; background: rgba(59, 130, 246, .12); color: var(--cyan); font-size: 1.2rem; margin-bottom: 14px; }
.kpi .num { font-family: var(--font-head); font-size: 1.9rem; font-weight: 700; }
.kpi .lbl { color: var(--gray); font-size: .85rem; }
.kpi .trend { color: #00d2a8; font-size: .8rem; }

.panel { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.panel-head { padding: 18px 22px; border-bottom: 1px solid var(--line); display: flex; align-items: center; justify-content: space-between; }
.panel-head h2 { font-size: 1.1rem; }

.table { width: 100%; border-collapse: collapse; }
.table th { text-align: left; font-size: .76rem; letter-spacing: .08em; text-transform: uppercase; color: #5f6f8a; padding: 14px 22px; border-bottom: 1px solid var(--line); }
.table td { padding: 14px 22px; border-bottom: 1px solid var(--line); font-size: .9rem; color: var(--gray); vertical-align: middle; }
.table tr:last-child td { border-bottom: 0; }
.table tr:hover td { background: rgba(59, 130, 246, .03); }
.table td .t-title { color: var(--white); font-weight: 600; }
.t-thumb { width: 56px; height: 36px; border-radius: 7px; object-fit: cover; border: 1px solid var(--line); }
.pill { font-size: .72rem; padding: 4px 10px; border-radius: 99px; font-weight: 600; }
.pill-green { background: rgba(0, 210, 168, .14); color: #4fe3c1; }
.pill-blue { background: rgba(30, 58, 138, .18); color: var(--sky); }
.pill-amber { background: rgba(255, 194, 75, .16); color: #ffd479; }
.pill-gray { background: var(--surface-2); color: var(--gray); }

.row-actions { display: flex; gap: 8px; }
.icon-btn { width: 34px; height: 34px; display: grid; place-items: center; border-radius: 9px; background: var(--surface-2); border: 1px solid var(--line); color: var(--gray); cursor: pointer; transition: all .18s; }
.icon-btn:hover { color: var(--cyan); border-color: var(--cyan); }

/* ── Utilities ──────────────────────────────────────────── */
.flex { display: flex; } .items-center { align-items: center; } .justify-between { justify-content: space-between; }
.gap-2 { gap: 8px; } .gap-3 { gap: 12px; } .gap-4 { gap: 16px; }
.mt-1 { margin-top: 6px; } .mt-2 { margin-top: 12px; } .mt-4 { margin-top: 24px; } .mb-4 { margin-bottom: 24px; }
.wrap { flex-wrap: wrap; }
.hide-mobile { }

/* ── Responsive ─────────────────────────────────────────── */
@media (max-width: 980px) {
    .grid-4 { grid-template-columns: repeat(2, 1fr); }
    .grid-3 { grid-template-columns: repeat(2, 1fr); }
    .hero-grid, .detail-grid { grid-template-columns: 1fr; }
    .orbit-wrap { max-width: 360px; margin: 0 auto; }
    .pricing-grid { grid-template-columns: 1fr; max-width: 440px; margin-inline: auto; }
    .stats-strip { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: 1fr 1fr; }
    .nav-links { display: none; }
    .nav-toggle { display: block; }
    .admin-shell { grid-template-columns: 1fr; }
    .sidebar { display: none; }
}
@media (max-width: 600px) {
    .grid-4, .grid-3, .grid-2, .learn-list { grid-template-columns: 1fr; }
    .stats-strip, .footer-grid { grid-template-columns: 1fr 1fr; }
    .section { padding: 60px 0; }
}