/* ---------- Telvia brand tokens ---------- */
:root {
    --navy-950: #06101f;
    --navy-900: #0b1733;
    --navy-800: #10204a;
    --navy-700: #17305f;
    --navy-600: #1e4380;
    --blue-500: #2f8cff;
    --blue-400: #4fa4ff;
    --teal-400: #2bd4d9;
    --green-500: #3ecf8e;
    --green-400: #5bdda2;
    --lime-400: #9be87a;
    --ink: #e9f1ff;
    --ink-dim: #a9bbd6;
    --ink-dimmer: #7a8ba8;
    --card: rgba(255, 255, 255, 0.04);
    --card-border: rgba(255, 255, 255, 0.09);
    --card-hover: rgba(255, 255, 255, 0.06);
    --danger: #ff5b6a;
    --radius: 14px;
    --radius-lg: 20px;
    --grad-brand: linear-gradient(135deg, #2f8cff 0%, #2bd4d9 45%, #3ecf8e 100%);
    --grad-button: linear-gradient(135deg, #3ecf8e 0%, #2bd4d9 100%);
    --shadow-soft: 0 20px 60px rgba(0, 10, 30, 0.45);
    --shadow-glow: 0 0 0 1px rgba(62, 207, 142, 0.25), 0 20px 60px rgba(47, 140, 255, 0.2);
}

* { box-sizing: border-box; }

html, body {
    margin: 0;
    padding: 0;
    background: var(--navy-950);
    color: var(--ink);
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    font-size: 16px;
    line-height: 1.55;
    -webkit-font-smoothing: antialiased;
    scroll-behavior: smooth;
}

body {
    background:
        radial-gradient(ellipse 1200px 600px at 15% -10%, rgba(47, 140, 255, 0.15), transparent 60%),
        radial-gradient(ellipse 1000px 500px at 95% 10%, rgba(62, 207, 142, 0.12), transparent 60%),
        radial-gradient(ellipse 900px 500px at 50% 120%, rgba(43, 212, 217, 0.08), transparent 60%),
        var(--navy-950);
    min-height: 100vh;
}

a { color: var(--blue-400); text-decoration: none; }
a:hover { color: var(--green-400); }
code {
    font-family: 'JetBrains Mono', 'Consolas', monospace;
    background: rgba(47, 140, 255, 0.12);
    color: var(--teal-400);
    padding: 2px 6px;
    border-radius: 6px;
    font-size: 0.9em;
}

.container { max-width: 1180px; margin: 0 auto; padding: 0 24px; }

/* ---------- Header ---------- */
.site-header {
    position: sticky;
    top: 0;
    z-index: 50;
    backdrop-filter: blur(18px) saturate(140%);
    -webkit-backdrop-filter: blur(18px) saturate(140%);
    background: rgba(6, 16, 31, 0.72);
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}
.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 18px 24px;
}
.brand {
    display: inline-flex;
    align-items: center;
    background: #ffffff;
    padding: 8px 16px;
    border-radius: 12px;
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.35), 0 0 0 1px rgba(255, 255, 255, 0.15);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.brand:hover {
    transform: translateY(-1px);
    box-shadow: 0 10px 28px rgba(47, 140, 255, 0.35), 0 0 0 1px rgba(62, 207, 142, 0.4);
}
.brand-logo { height: 32px; display: block; }
.nav {
    display: flex;
    gap: 32px;
    align-items: center;
    font-weight: 500;
}
.nav a { color: var(--ink-dim); font-size: 15px; }
.nav a:hover { color: var(--ink); }
.nav .nav-cta {
    background: var(--grad-button);
    color: #07241a !important;
    padding: 10px 18px;
    border-radius: 10px;
    font-weight: 700;
    box-shadow: 0 6px 18px rgba(62, 207, 142, 0.28);
}
.nav .nav-cta:hover { transform: translateY(-1px); }

/* ---------- Buttons ---------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 14px 26px;
    border: none;
    border-radius: 12px;
    font-family: inherit;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    text-decoration: none;
    transition: transform 0.15s ease, box-shadow 0.2s ease, background 0.2s;
}
.btn-primary {
    background: var(--grad-button);
    color: #06201a;
    box-shadow: 0 10px 30px rgba(62, 207, 142, 0.3), 0 0 0 1px rgba(62, 207, 142, 0.4) inset;
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 16px 40px rgba(62, 207, 142, 0.38); color: #06201a; }
.btn-primary.disabled { opacity: 0.45; pointer-events: none; }
.btn-lg { padding: 18px 32px; font-size: 16px; }
.btn-block { width: 100%; }
.btn-ghost {
    background: transparent;
    color: var(--ink);
    border: 1px solid rgba(255, 255, 255, 0.15);
}
.btn-ghost:hover { background: rgba(255, 255, 255, 0.06); color: var(--ink); }
.btn-danger {
    background: rgba(255, 91, 106, 0.12);
    color: var(--danger);
    border: 1px solid rgba(255, 91, 106, 0.35);
}
.btn-danger:hover { background: rgba(255, 91, 106, 0.18); }

/* ---------- Text helpers ---------- */
.eyebrow {
    display: inline-block;
    text-transform: uppercase;
    letter-spacing: 0.14em;
    font-size: 12px;
    font-weight: 700;
    color: var(--teal-400);
    background: rgba(43, 212, 217, 0.1);
    padding: 6px 12px;
    border-radius: 999px;
    border: 1px solid rgba(43, 212, 217, 0.25);
}
.gradient-text {
    background: var(--grad-brand);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}
.lede {
    font-size: 18px;
    color: var(--ink-dim);
    max-width: 60ch;
    line-height: 1.65;
}
h1, h2, h3 { color: var(--ink); letter-spacing: -0.01em; }
h1 { font-size: clamp(38px, 5.5vw, 64px); line-height: 1.05; font-weight: 800; margin: 18px 0 22px; }
h2 { font-size: clamp(28px, 3.5vw, 42px); line-height: 1.15; font-weight: 800; margin: 0 0 16px; }
h3 { font-size: 19px; font-weight: 700; margin: 0 0 8px; }

.section-head { text-align: center; margin: 0 auto 48px; max-width: 760px; }
.section-head h2 { margin-top: 14px; }

.pill {
    display: inline-block;
    padding: 4px 11px;
    border-radius: 999px;
    background: rgba(62, 207, 142, 0.15);
    color: var(--green-400);
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.04em;
    border: 1px solid rgba(62, 207, 142, 0.3);
}

/* ---------- Hero ---------- */
.hero {
    position: relative;
    overflow: hidden;
    padding: 72px 0 100px;
}
.hero-bg {
    position: absolute;
    inset: 0;
    pointer-events: none;
    background:
        radial-gradient(ellipse 700px 420px at 18% 30%, rgba(47, 140, 255, 0.25), transparent 65%),
        radial-gradient(ellipse 700px 420px at 80% 70%, rgba(62, 207, 142, 0.22), transparent 65%);
    opacity: 0.9;
}
.hero-grid {
    position: relative;
    display: grid;
    grid-template-columns: 1.15fr 1fr;
    gap: 56px;
    align-items: center;
}
.hero-copy { max-width: 620px; }
.hero-cta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 22px;
    margin: 34px 0;
}
.hero-meta {
    display: flex;
    gap: 14px;
    color: var(--ink-dimmer);
    font-size: 14px;
    align-items: center;
    flex-wrap: wrap;
}
.trust-row {
    display: flex;
    gap: 40px;
    padding-top: 22px;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    flex-wrap: wrap;
}
.trust-item {
    display: flex;
    flex-direction: column;
}
.trust-item strong { font-size: 18px; color: var(--ink); font-weight: 700; }
.trust-item span { color: var(--ink-dimmer); font-size: 13px; }

.hero-visual {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}
.hero-visual .glow {
    position: absolute;
    width: 480px;
    height: 480px;
    background: radial-gradient(circle, rgba(62, 207, 142, 0.35), transparent 60%);
    filter: blur(50px);
    z-index: 0;
}
.app-shot {
    position: relative;
    z-index: 1;
    max-width: 360px;
    width: 100%;
    height: auto;
    border-radius: 18px;
    box-shadow:
        0 40px 80px rgba(0, 0, 0, 0.55),
        0 0 0 1px rgba(255, 255, 255, 0.08),
        0 0 60px rgba(47, 140, 255, 0.25);
    transform: perspective(1200px) rotateY(-6deg) rotateX(3deg);
    transition: transform 0.5s ease;
}
.app-shot:hover { transform: perspective(1200px) rotateY(-2deg) rotateX(1deg); }

/* ---------- Features ---------- */
.features { padding: 100px 0; }
.feature-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 22px;
}
.feature {
    background: var(--card);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-lg);
    padding: 28px 24px;
    transition: transform 0.2s, background 0.2s, border-color 0.2s;
}
.feature:hover {
    transform: translateY(-4px);
    background: var(--card-hover);
    border-color: rgba(62, 207, 142, 0.35);
}
.feature p { color: var(--ink-dim); font-size: 14.5px; margin: 0; }
.feature-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    margin-bottom: 18px;
}
.icon-blue { background: rgba(47, 140, 255, 0.15); border: 1px solid rgba(47, 140, 255, 0.35); }
.icon-green { background: rgba(62, 207, 142, 0.15); border: 1px solid rgba(62, 207, 142, 0.35); }
.icon-gradient {
    background: var(--grad-brand);
    border: 1px solid rgba(255, 255, 255, 0.25);
    box-shadow: 0 8px 22px rgba(47, 140, 255, 0.35);
}

.feature-group { margin-top: 56px; }
.feature-group:first-of-type { margin-top: 56px; }
.feature-group-title {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 15px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--ink);
    margin: 0 0 22px;
}
.feature-group-title .dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    display: inline-block;
}
.dot-blue { background: var(--blue-500); box-shadow: 0 0 14px rgba(47, 140, 255, 0.7); }
.dot-green { background: var(--green-500); box-shadow: 0 0 14px rgba(62, 207, 142, 0.7); }
.dot-gradient { background: var(--grad-brand); box-shadow: 0 0 14px rgba(43, 212, 217, 0.7); }
.feature-group-sub {
    color: var(--ink-dim);
    font-size: 15px;
    margin: -8px 0 22px;
    max-width: 60ch;
}

.feature-group-hero {
    position: relative;
    padding: 38px 32px 32px;
    margin-top: 72px;
    border-radius: 24px;
    background:
        linear-gradient(135deg, rgba(47, 140, 255, 0.1), rgba(62, 207, 142, 0.1)),
        rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(62, 207, 142, 0.28);
    box-shadow: var(--shadow-glow);
}
.feature-group-hero .feature-group-title { margin-top: 0; }

.feature-accent {
    background: rgba(255, 255, 255, 0.035);
    border-color: rgba(255, 255, 255, 0.1);
}
.feature-accent:hover {
    border-color: rgba(43, 212, 217, 0.45);
    background: rgba(255, 255, 255, 0.055);
}

/* ---------- Download ---------- */
.download { padding: 60px 0 100px; }
.download-card {
    background:
        linear-gradient(135deg, rgba(47, 140, 255, 0.12), rgba(62, 207, 142, 0.12)),
        rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(62, 207, 142, 0.28);
    border-radius: 24px;
    padding: 56px;
    display: grid;
    grid-template-columns: 1.4fr 1fr;
    gap: 48px;
    align-items: center;
    box-shadow: var(--shadow-glow);
}
.dl-facts {
    list-style: none;
    padding: 0;
    margin: 22px 0 28px;
}
.dl-facts li {
    padding: 8px 0;
    color: var(--ink-dim);
    border-bottom: 1px dashed rgba(255, 255, 255, 0.08);
    font-size: 14.5px;
}
.dl-facts li strong { color: var(--ink); display: inline-block; min-width: 110px; }
.download-note {
    margin-top: 20px;
    font-size: 13.5px;
    color: var(--ink-dimmer);
    max-width: 55ch;
}
.dl-shot {
    max-width: 100%;
    border-radius: 16px;
    box-shadow: 0 30px 70px rgba(0, 0, 0, 0.5), 0 0 0 1px rgba(255, 255, 255, 0.08);
}

/* ---------- Flow / Steps ---------- */
.flow { padding: 80px 0 120px; }
.steps {
    list-style: none;
    padding: 0;
    margin: 0;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 22px;
}
.steps li {
    background: var(--card);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-lg);
    padding: 28px 22px;
    position: relative;
}
.step-num {
    display: inline-flex;
    width: 40px;
    height: 40px;
    border-radius: 10px;
    background: var(--grad-button);
    color: #06201a;
    font-weight: 800;
    align-items: center;
    justify-content: center;
    margin-bottom: 16px;
    font-size: 18px;
}
.steps p { color: var(--ink-dim); font-size: 14px; margin: 0; }

/* ---------- Docs page ---------- */
.page-hero { padding: 80px 0 50px; }
.page-hero h1 { font-size: clamp(34px, 4.5vw, 52px); }
.doc { padding: 30px 0 100px; }
.doc-grid { display: grid; grid-template-columns: 220px 1fr; gap: 56px; }
.doc-nav {
    position: sticky;
    top: 100px;
    align-self: start;
}
.doc-nav h4 {
    text-transform: uppercase;
    letter-spacing: 0.12em;
    font-size: 11px;
    color: var(--ink-dimmer);
    margin: 0 0 12px;
}
.doc-nav a {
    display: block;
    padding: 8px 0;
    color: var(--ink-dim);
    font-size: 14px;
    border-left: 2px solid transparent;
    padding-left: 14px;
    margin-left: -14px;
}
.doc-nav a:hover { color: var(--ink); border-left-color: var(--green-500); }
.doc-body h2 {
    margin-top: 40px;
    padding-top: 24px;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    font-size: 26px;
}
.doc-body h2:first-child { border: 0; padding-top: 0; margin-top: 0; }
.doc-body p, .doc-body li { color: var(--ink-dim); font-size: 15.5px; line-height: 1.75; }
.doc-body ul { padding-left: 22px; }

/* ---------- Auth / admin ---------- */
.auth-wrap {
    min-height: 70vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 60px 24px;
}
.auth-card {
    max-width: 420px;
    width: 100%;
    background: rgba(11, 23, 51, 0.7);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-lg);
    padding: 40px 36px;
    text-align: center;
    backdrop-filter: blur(18px);
    box-shadow: var(--shadow-soft);
}
.auth-icon { width: 68px; height: 68px; margin-bottom: 12px; }
.auth-card h1 { font-size: 26px; margin: 0 0 6px; }
.auth-sub { color: var(--ink-dim); font-size: 14px; margin: 0 0 26px; }
.auth-card form { text-align: left; }
.auth-card label {
    display: block;
    margin-bottom: 18px;
}
.auth-card label span {
    display: block;
    font-size: 12px;
    color: var(--ink-dimmer);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-weight: 600;
    margin-bottom: 8px;
}
.auth-card input {
    width: 100%;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.12);
    color: var(--ink);
    padding: 13px 14px;
    border-radius: 10px;
    font-family: inherit;
    font-size: 15px;
    outline: none;
    transition: border-color 0.15s, background 0.15s;
}
.auth-card input:focus {
    border-color: var(--green-500);
    background: rgba(62, 207, 142, 0.08);
}
.auth-back {
    display: inline-block;
    margin-top: 22px;
    color: var(--ink-dimmer);
    font-size: 13px;
}

.admin-wrap { padding: 60px 0 100px; }
.admin-head {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 24px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}
.admin-grid {
    display: grid;
    grid-template-columns: 1.1fr 1fr;
    gap: 28px;
}
.admin-card {
    background: var(--card);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-lg);
    padding: 32px;
}
.admin-card h3 { font-size: 20px; }
.admin-card > p { color: var(--ink-dim); margin-top: 0; }

.upload-form { margin-top: 16px; }
.drop {
    display: block;
    position: relative;
    border: 2px dashed rgba(62, 207, 142, 0.35);
    border-radius: 14px;
    padding: 44px 24px;
    text-align: center;
    cursor: pointer;
    transition: background 0.2s, border-color 0.2s;
    background: rgba(62, 207, 142, 0.04);
    margin-bottom: 18px;
}
.drop:hover, .drop.over {
    border-color: var(--green-500);
    background: rgba(62, 207, 142, 0.1);
}
.drop input[type=file] {
    position: absolute;
    inset: 0;
    opacity: 0;
    cursor: pointer;
}
.drop-inner { color: var(--ink-dim); font-size: 14px; }
.drop-inner svg { color: var(--green-400); display: block; margin: 0 auto 10px; }
.drop-inner strong { color: var(--ink); }
.chosen {
    display: block;
    margin-top: 8px;
    color: var(--green-400);
    font-weight: 600;
}

.current-build {
    display: flex;
    gap: 16px;
    align-items: center;
    padding: 18px;
    background: rgba(47, 140, 255, 0.06);
    border: 1px solid rgba(47, 140, 255, 0.2);
    border-radius: 12px;
    margin: 16px 0 18px;
}
.cb-icon img { width: 52px; height: 52px; display: block; }
.cb-info { display: flex; flex-direction: column; gap: 4px; min-width: 0; }
.cb-info strong { font-size: 15px; word-break: break-all; }
.cb-meta { color: var(--ink-dimmer); font-size: 13px; }
.cb-actions { display: flex; gap: 10px; flex-wrap: wrap; }
.empty-state {
    padding: 32px 20px;
    text-align: center;
    background: rgba(255, 255, 255, 0.025);
    border: 1px dashed rgba(255, 255, 255, 0.12);
    border-radius: 12px;
    color: var(--ink-dim);
    margin-top: 12px;
}
.empty-state p { margin: 0 0 6px; }
.empty-state small { color: var(--ink-dimmer); }

/* ---------- Flash ---------- */
.flash {
    padding: 14px 18px;
    border-radius: 12px;
    margin-bottom: 22px;
    font-size: 14px;
    font-weight: 500;
}
.flash-ok {
    background: rgba(62, 207, 142, 0.12);
    border: 1px solid rgba(62, 207, 142, 0.38);
    color: var(--green-400);
}
.flash-error {
    background: rgba(255, 91, 106, 0.12);
    border: 1px solid rgba(255, 91, 106, 0.38);
    color: var(--danger);
}

/* ---------- Footer ---------- */
.site-footer {
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    background: rgba(6, 16, 31, 0.7);
    padding: 48px 0 32px;
    margin-top: 40px;
}
.footer-inner {
    display: grid;
    grid-template-columns: 1.4fr 1fr;
    gap: 28px;
    align-items: start;
}
.footer-logo {
    height: 28px;
    margin-bottom: 12px;
    background: #ffffff;
    padding: 6px 12px;
    border-radius: 10px;
    display: inline-block;
    box-sizing: content-box;
}
.footer-tagline { color: var(--ink-dimmer); font-size: 13px; margin: 0; }
.footer-links { display: flex; gap: 22px; flex-wrap: wrap; justify-content: flex-end; }
.footer-links a { color: var(--ink-dim); font-size: 14px; }
.footer-links a:hover { color: var(--ink); }
.footer-copy {
    grid-column: 1 / -1;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    margin-top: 28px;
    padding-top: 20px;
    color: var(--ink-dimmer);
    font-size: 12px;
}

/* ---------- Responsive ---------- */
@media (max-width: 980px) {
    .hero-grid { grid-template-columns: 1fr; }
    .hero-visual { order: -1; }
    .feature-grid { grid-template-columns: repeat(2, 1fr); }
    .steps { grid-template-columns: repeat(2, 1fr); }
    .download-card { grid-template-columns: 1fr; padding: 36px; }
    .download-right { display: none; }
    .admin-grid { grid-template-columns: 1fr; }
    .doc-grid { grid-template-columns: 1fr; }
    .doc-nav { position: static; }
    .footer-inner { grid-template-columns: 1fr; }
    .footer-links { justify-content: flex-start; }
}
@media (max-width: 620px) {
    .feature-grid { grid-template-columns: 1fr; }
    .steps { grid-template-columns: 1fr; }
    .nav { gap: 18px; }
    .nav a:not(.nav-cta) { display: none; }
    .hero { padding: 48px 0 64px; }
    .download { padding: 40px 0 80px; }
}