:root {
    --bg: #020617;
    --bg-alt: #0b1220;
    --panel: #020617;
    --border: #1e293b;
    --border-soft: #111827;
    --accent: #f97316;
    --accent-soft: rgba(249, 115, 22, 0.12);
    --accent-secondary: #38bdf8;
    --text-main: #e5e7eb;
    --text-muted: #94a3b8;
    --danger: #f97373;
    --danger-soft: #451717;
    --radius-lg: 16px;
    --radius-md: 10px;
    --radius-pill: 999px;
    --font-sans: system-ui, -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", sans-serif;
    --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
    --shadow-soft: 0 18px 40px rgba(15,23,42,0.85);
}

/* Global reset / layout helpers */

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: var(--font-sans);
    background: radial-gradient(circle at 0% 0%, #e0f2fe, #f8fafc 55%, #eef2ff 100%);
    color: #020617;
}

a {
    color: inherit;
    text-decoration: none;
}

.page-wrap {
    max-width: 1040px;
    margin: 0 auto;
    padding: 18px 16px 40px;
}

/* Dark theme: prefers-color-scheme */

@media (prefers-color-scheme: dark) {
    body {
        background: radial-gradient(circle at 0% 0%, #0f172a, #020617 60%, #000 100%);
        color: var(--text-main);
    }
}

/* Manual override if ever used */

body[data-theme="dark"] {
    background: radial-gradient(circle at 0% 0%, #0f172a, #020617 60%, #000 100%);
    color: var(--text-main);
}

body[data-theme="light"] {
    background: radial-gradient(circle at 0% 0%, #e0f2fe, #f8fafc 55%, #eef2ff 100%);
    color: #020617;
}

/* HEADER */

.header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 26px;
}

.brand {
    display: flex;
    align-items: center;
    gap: 12px;
}

.brand-logo {
    width: 34px;
    height: 34px;
    border-radius: 12px;
    background:
            radial-gradient(circle at 0% 0%, #f97316 0, transparent 50%),
            radial-gradient(circle at 100% 100%, #38bdf8 0, transparent 55%),
            #020617;
    box-shadow:
            0 0 0 1px rgba(15,23,42,0.9),
            0 16px 30px rgba(15,23,42,0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #f9fafb;
    font-family: var(--font-mono);
    font-weight: 700;
    font-size: 15px;
}

.brand-text-main {
    font-family: var(--font-mono);
    font-size: 13px;
    letter-spacing: 0.16em;
    text-transform: uppercase;
}

.brand-text-sub {
    font-size: 11px;
    color: var(--text-muted);
    margin-top: 2px;
}

.nav {
    display: flex;
    gap: 16px;
    font-size: 13px;
    color: var(--text-muted);
}

.nav-link {
    cursor: pointer;
    position: relative;
    padding-bottom: 2px;
}

.nav-link::after {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    height: 1px;
    border-radius: 999px;
    background: linear-gradient(90deg, #f97316, #38bdf8);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform .18s ease-out;
}

.nav-link:hover::after {
    transform: scaleX(1);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 8px;
}

.header-pill {
    font-family: var(--font-mono);
    font-size: 10px;
    letter-spacing: .14em;
    text-transform: uppercase;
    padding: 4px 10px;
    border-radius: var(--radius-pill);
    border: 1px solid rgba(148,163,184,0.7);
    background: rgba(15,23,42,0.88);
    color: var(--accent-secondary);
}

.btn-small {
    font-family: var(--font-mono);
    font-size: 11px;
    padding: 7px 14px;
    border-radius: var(--radius-pill);
    border: 1px solid rgba(148,163,184,0.7);
    background: rgba(15,23,42,0.95);
    color: #e5e7eb;
    cursor: pointer;
}

@media (prefers-color-scheme: light) {
    .header-pill {
        background: #f9fafb;
        color: #0f172a;
    }
    .btn-small {
        background: #ffffff;
        color: #0f172a;
    }
}

@media (max-width: 840px) {
    .nav { display: none; }
}

/* LANGUAGE SWITCH */

.lang-switch {
    display: flex;
    gap: 4px;
    align-items: center;
}

.lang-btn {
    font-family: var(--font-mono);
    font-size: 10px;
    padding: 4px 8px;
    border-radius: var(--radius-pill);
    border: 1px solid rgba(148,163,184,0.7);
    background: transparent;
    color: var(--text-muted);
    cursor: pointer;
}

.lang-btn.active {
    background: linear-gradient(90deg, #f97316, #38bdf8);
    color: #020617;
    border: none;
}

/* LAYOUTS */

.hero-layout {
    display: grid;
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
    gap: 24px;
    align-items: stretch;
}

@media (max-width: 900px) {
    .hero-layout {
        grid-template-columns: minmax(0, 1fr);
    }
}

/* HERO PANELS */

.hero-panel {
    border-radius: 20px;
    border: 1px solid rgba(30,64,175,0.45);
    background: radial-gradient(circle at 0% 0%, rgba(56,189,248,0.12), transparent 60%),
    radial-gradient(circle at 100% 0%, rgba(249,115,22,0.16), transparent 50%),
    rgba(15,23,42,0.96);
    box-shadow: var(--shadow-soft);
    padding: 18px 18px 16px;
    color: #f9fafb;
}

.hero-tag {
    font-family: var(--font-mono);
    text-transform: uppercase;
    letter-spacing: .16em;
    font-size: 10px;
    color: var(--accent-secondary);
    margin-bottom: 8px;
}

.hero-title {
    font-size: clamp(24px, 3.2vw, 30px);
    line-height: 1.2;
    margin-bottom: 10px;
}

.hero-sub {
    font-size: 13px;
    color: var(--text-muted);
    max-width: 460px;
    margin-bottom: 16px;
}

.hero-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 14px;
}

.hero-badge {
    font-family: var(--font-mono);
    font-size: 11px;
    padding: 4px 10px;
    border-radius: var(--radius-pill);
    border: 1px solid rgba(55,65,81,0.9);
    background: rgba(15,23,42,0.9);
    color: var(--text-muted);
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 10px;
}

.btn-main {
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: .12em;
    text-transform: uppercase;
    padding: 10px 18px;
    border-radius: var(--radius-pill);
    border: none;
    cursor: pointer;
    background: linear-gradient(90deg, #f97316, #38bdf8);
    color: #020617;
}

.btn-ghost {
    font-family: var(--font-mono);
    font-size: 11px;
    padding: 9px 16px;
    border-radius: var(--radius-pill);
    border: 1px solid rgba(148,163,184,0.7);
    background: rgba(15,23,42,0.95);
    color: #e5e7eb;
    cursor: pointer;
}

.hero-note {
    font-size: 11px;
    color: var(--text-muted);
}

/* WORKFLOW PANEL */

.workflow-panel {
    border-radius: 20px;
    border: 1px solid rgba(148,163,184,0.6);
    background: rgba(15,23,42,0.98);
    box-shadow: var(--shadow-soft);
    padding: 14px 14px 12px;
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--text-muted);
}

.workflow-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
}

.workflow-dots {
    display: flex;
    gap: 4px;
}

.workflow-dot {
    width: 8px;
    height: 8px;
    border-radius: 999px;
}

.workflow-dot.red { background: #f97373; }
.workflow-dot.yellow { background: #facc15; }
.workflow-dot.green { background: #22c55e; }

.workflow-title {
    color: #e5e7eb;
}

.workflow-body {
    border-radius: 14px;
    border: 1px solid rgba(30,64,175,0.6);
    background: radial-gradient(circle at 0% 0%, rgba(56,189,248,0.22), transparent 60%),
    #020617;
    padding: 10px;
}

/* Simple "diagram" blocks */

.flow-row {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 8px;
}

.flow-block {
    border-radius: 12px;
    padding: 6px 10px;
    border: 1px solid rgba(148,163,184,0.7);
    background: rgba(15,23,42,0.95);
    color: #e5e7eb;
    min-width: 90px;
    text-align: center;
}

.flow-arrow {
    font-size: 12px;
    color: var(--accent-secondary);
}

.flow-note {
    color: var(--text-muted);
    margin-top: 6px;
}

/* SECTIONS */

section {
    margin-top: 32px;
}

.section-head {
    margin-bottom: 12px;
}

.section-title {
    font-size: 16px;
    font-weight: 600;
}

.section-sub {
    font-size: 13px;
    color: var(--text-muted);
    max-width: 540px;
}

/* GRID CARDS */

.grid-3 {
    display: grid;
    grid-template-columns: repeat(3, minmax(0,1fr));
    gap: 14px;
}

@media (max-width: 900px) {
    .grid-3 { grid-template-columns: repeat(2, minmax(0,1fr)); }
}

@media (max-width: 640px) {
    .grid-3 { grid-template-columns: minmax(0,1fr); }
}

.card {
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    background: rgba(15,23,42,0.96);
    box-shadow: 0 14px 32px rgba(15,23,42,0.9);
    padding: 12px 14px 10px;
    font-size: 13px;
}

@media (prefers-color-scheme: light) {
    .card {
        background: #ffffff;
        box-shadow: 0 14px 32px rgba(148,163,184,0.3);
    }
}

.card-label {
    font-family: var(--font-mono);
    font-size: 10px;
    text-transform: uppercase;
    letter-spacing: .14em;
    color: var(--accent-secondary);
    margin-bottom: 4px;
}

.card h3 {
    margin: 0 0 6px;
    font-size: 14px;
    color: #e5e7eb;
}

.card p {
    margin: 0;
    font-size: 12px;
    color: var(--text-muted);
}

@media (prefers-color-scheme: light) {
    .card h3 {
        color: #020617;
    }
}

/* INFO BOX */

.info-box {
    max-width: 520px;
    border-radius: 18px;
    border: 1px solid var(--border);
    background: rgba(15,23,42,0.96);
    box-shadow: 0 14px 32px rgba(15,23,42,0.9);
    padding: 14px 14px 12px;
    font-size: 13px;
}

@media (prefers-color-scheme: light) {
    .info-box {
        background: #ffffff;
        box-shadow: 0 14px 32px rgba(148,163,184,0.3);
    }
}

.info-title {
    font-size: 15px;
    font-weight: 600;
    margin-bottom: 6px;
}

.info-sub {
    font-size: 12px;
    color: var(--text-muted);
    margin-bottom: 8px;
}

.info-list {
    font-size: 12px;
    color: var(--text-muted);
    padding-left: 18px;
    margin: 0;
}

/* AUTH PAGES */

.auth-layout {
    max-width: 420px;
    margin: 32px auto 0;
    padding: 0 8px;
}

.auth-card {
    border-radius: 22px;
    border: 1px solid var(--border);
    background: rgba(15,23,42,0.98);
    box-shadow: var(--shadow-soft);
    padding: 20px 18px 16px;
    font-size: 13px;
    margin: 0 auto;
}

@media (prefers-color-scheme: light) {
    .auth-card {
        background: #ffffff;
        box-shadow: 0 18px 40px rgba(148,163,184,0.4);
    }
}

.auth-title,
.auth-sub,
.form-group,
.form-row-inline,
.form-actions,
.auth-meta {
    text-align: left;
}

.auth-title {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 4px;
}

.auth-sub {
    font-size: 13px;
    color: var(--text-muted);
    margin-bottom: 14px;
}

.form-group {
    margin-bottom: 10px;
}

.form-label {
    display: block;
    font-size: 12px;
    margin-bottom: 3px;
}

.form-input {
    width: 100%;
    max-width: 100%;
    display: block;
    font-size: 13px;
    padding: 8px 10px;
    border-radius: 10px;
    border: 1px solid var(--border);
    background: #020617;
    color: #e5e7eb;
}

.form-input::placeholder {
    color: #64748b;
}

.form-input:focus {
    outline: none;
    border-color: var(--accent-secondary);
    box-shadow: 0 0 0 1px rgba(56,189,248,0.7);
}

@media (prefers-color-scheme: light) {
    .form-input {
        background: #f9fafb;
        color: #020617;
    }
}

.form-row-inline {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 8px;
    margin-top: 8px;
}

.checkbox-label {
    font-size: 12px;
    color: var(--text-muted);
}

.checkbox-label input {
    margin-right: 6px;
}

.form-actions {
    margin-top: 12px;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.btn-auth {
    width: 100%;
    border-radius: var(--radius-pill);
    border: none;
    background: linear-gradient(90deg, #f97316, #38bdf8);
    color: #020617;
    font-size: 13px;
    padding: 9px 16px;
    font-weight: 600;
    cursor: pointer;
}

.btn-auth-secondary {
    width: 100%;
    border-radius: var(--radius-pill);
    border: 1px solid var(--border);
    background: #020617;
    color: #e5e7eb;
    font-size: 13px;
    padding: 8px 14px;
    cursor: pointer;
}

@media (prefers-color-scheme: light) {
    .btn-auth-secondary {
        background: #f9fafb;
        color: #020617;
    }
}

.auth-meta {
    margin-top: 10px;
    font-size: 12px;
    color: var(--text-muted);
}

.auth-meta a {
    text-decoration: underline;
}

/* ALERT */

.alert-error {
    border-radius: 12px;
    background: var(--danger-soft);
    border: 1px solid var(--danger);
    color: #fecaca;
    padding: 8px 10px;
    font-size: 12px;
    margin-bottom: 10px;
}

/* CODE BLOCK */

.code-block {
    border-radius: 14px;
    border: 1px solid rgba(30,64,175,0.8);
    background: #020617;
    box-shadow: 0 12px 26px rgba(15,23,42,0.9);
    padding: 10px 12px;
    font-family: var(--font-mono);
    font-size: 11px;
    color: #e5e7eb;
    overflow-x: auto;
}

.code-comment { color: #9ca3af; }
.code-url { color: #fb923c; }
.code-key { color: #38bdf8; }
.code-param { color: #22c55e; }

/* TERMS */

.terms {
    max-width: 760px;
    margin: 30px auto 0;
    border-radius: 22px;
    border: 1px solid var(--border);
    background: rgba(15,23,42,0.98);
    box-shadow: var(--shadow-soft);
    padding: 20px 18px 18px;
    font-size: 14px;
}

@media (prefers-color-scheme: light) {
    .terms {
        background: #ffffff;
        box-shadow: 0 18px 40px rgba(148,163,184,0.4);
    }
}

.terms h1 {
    font-size: 20px;
    margin-top: 0;
    margin-bottom: 8px;
}

.terms h2 {
    font-size: 16px;
    margin-top: 16px;
    margin-bottom: 6px;
}

.terms p {
    font-size: 13px;
    color: var(--text-muted);
    margin-top: 4px;
    margin-bottom: 4px;
}

.terms ul {
    font-size: 13px;
    color: var(--text-muted);
    padding-left: 18px;
}

/* FOOTER */

footer {
    margin-top: 34px;
    padding-top: 14px;
    border-top: 1px solid rgba(30,41,59,0.9);
    font-size: 11px;
    color: var(--text-muted);
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    justify-content: space-between;
}

.footer-links {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.footer-link {
    text-decoration: underline dotted;
    cursor: pointer;
}

/* COOKIE BANNER */

.cookie-banner {
    position: fixed;
    left: 50%;
    bottom: 18px;
    transform: translateX(-50%);
    max-width: 520px;
    width: calc(100% - 32px);
    border-radius: 16px;
    border: 1px solid var(--border);
    background: rgba(15,23,42,0.97);
    box-shadow: 0 18px 40px rgba(15,23,42,0.95);
    padding: 10px 14px 10px;
    font-size: 12px;
    color: var(--text-muted);
    display: none;
    z-index: 60;
}

@media (prefers-color-scheme: light) {
    .cookie-banner {
        background: #ffffff;
        box-shadow: 0 18px 40px rgba(148,163,184,0.5);
    }
}

.cookie-banner-header {
    font-size: 12px;
    font-weight: 600;
    margin-bottom: 4px;
    color: #e5e7eb;
}

@media (prefers-color-scheme: light) {
    .cookie-banner-header {
        color: #020617;
    }
}

.cookie-banner-actions {
    margin-top: 8px;
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    justify-content: flex-end;
}

.btn-cookie-primary,
.btn-cookie-secondary {
    font-family: var(--font-mono);
    font-size: 11px;
    padding: 6px 12px;
    border-radius: var(--radius-pill);
    cursor: pointer;
    border: 1px solid rgba(148,163,184,0.7);
}

.btn-cookie-primary {
    background: linear-gradient(90deg, #f97316, #38bdf8);
    color: #020617;
    border: none;
}

.btn-cookie-secondary {
    background: transparent;
    color: var(--text-muted);
}

/* YEAR SPAN */

.year-span {
    font-variant-numeric: tabular-nums;
}