/*
 * Copyright 2026 - Raul Herreros - Amtiri SpA. PROPRIETARY AND CONFIDENTIAL. All rights reserved.
 *
 * Data Orchester portal design system.
 * Single dark theme on purpose: the portal spans a marketing surface (home, pricing, download) and an
 * operational one (instances, admin). One committed palette keeps both reading as the same product and
 * avoids maintaining two colour sets for pages that are mostly dense tables.
 *
 * @author Raul Herreros
 */

/* ------------------------------------------------------------------ *
 * Design tokens
 * ------------------------------------------------------------------ */
:root {
    /* Surfaces - deep navy ramp */
    --color-bg: #060a14;
    --color-bg-alt: #0a1020;

    /* Lines */
    --color-line: rgba(148, 173, 214, 0.14);
    --color-line-strong: rgba(148, 173, 214, 0.28);

    /* Text */
    --color-text: #e9eefb;
    --color-heading: #ffffff;
    --color-muted: #93a3bd;
    --color-faint: #6c7c98;

    /* Brand - derived from the Amtiri steel blue (#84a0bf) */
    --color-accent: #4f8ff7;
    --color-cyan: #35d6ea;
    --color-violet: #9b7bf6;

    /* Semantic */
    --color-success: #37d39a;
    --color-warning: #f0b64c;
    --color-error: #ff6b6b;

    /* Gradients */
    --gradient-accent: linear-gradient(135deg, var(--color-accent) 0%, var(--color-cyan) 100%);
    --gradient-aurora: radial-gradient(circle at 20% 20%, rgba(79, 143, 247, 0.35), transparent 55%),
                       radial-gradient(circle at 80% 10%, rgba(53, 214, 234, 0.22), transparent 50%),
                       radial-gradient(circle at 60% 80%, rgba(155, 123, 246, 0.25), transparent 55%);

    /* Elevation */
    --shadow-md: 0 12px 28px -12px rgba(0, 0, 0, 0.65);
    --shadow-lg: 0 32px 64px -28px rgba(0, 0, 0, 0.8);
    --shadow-glow: 0 0 0 1px rgba(79, 143, 247, 0.35), 0 18px 45px -18px rgba(79, 143, 247, 0.65);

    /* Geometry */
    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 22px;
    --radius-pill: 999px;
    --content-width: 1160px;
    --content-width-narrow: 820px;

    /* Motion */
    --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
    --duration-fast: 160ms;
    --duration-base: 280ms;
    --duration-slow: 620ms;

    color-scheme: dark;
    font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    --font-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
}

* { box-sizing: border-box; }

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    margin: 0;
    min-height: 100vh;
    background: var(--color-bg);
    color: var(--color-text);
    line-height: 1.65;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
    display: flex;
    flex-direction: column;
}

/* Ambient page backdrop: a fixed aurora wash plus a faint engineering grid. */
body::before {
    content: "";
    position: fixed;
    inset: 0;
    background: var(--gradient-aurora);
    opacity: 0.5;
    pointer-events: none;
    z-index: 0;
    animation: auroraDrift 24s ease-in-out infinite alternate;
}

body::after {
    content: "";
    position: fixed;
    inset: 0;
    background-image: url("../img/pattern-grid.svg");
    background-size: 44px 44px;
    opacity: 0.5;
    pointer-events: none;
    z-index: 0;
    mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, #000 20%, transparent 75%);
    -webkit-mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, #000 20%, transparent 75%);
}

body > * { position: relative; z-index: 1; }

/* ------------------------------------------------------------------ *
 * Typography
 * ------------------------------------------------------------------ */
h1, h2, h3, h4, h5 {
    color: var(--color-heading);
    line-height: 1.15;
    letter-spacing: -0.022em;
    margin: 0 0 0.6em;
    font-weight: 700;
}

h1 { font-size: clamp(2.1rem, 1.4rem + 2.6vw, 3.3rem); }
h2 { font-size: clamp(1.6rem, 1.2rem + 1.5vw, 2.25rem); }
h3 { font-size: clamp(1.2rem, 1.05rem + 0.6vw, 1.45rem); }
h4 { font-size: 1.05rem; }

p { margin: 0 0 1.1em; }

a {
    color: var(--color-accent);
    text-decoration: none;
    transition: color var(--duration-fast) var(--ease-out);
}

a:hover { color: var(--color-cyan); }

strong { color: var(--color-heading); font-weight: 650; }

code, .mono { font-family: var(--font-mono); }

::selection {
    background: rgba(79, 143, 247, 0.35);
    color: #fff;
}

:focus-visible {
    outline: 2px solid var(--color-cyan);
    outline-offset: 3px;
    border-radius: 4px;
}

/* ------------------------------------------------------------------ *
 * Layout primitives
 * ------------------------------------------------------------------ */
.content {
    width: 100%;
    max-width: var(--content-width);
    margin: 0 auto;
    padding: 3rem 1.5rem 5rem;
    flex: 1 0 auto;
}

.content--narrow { max-width: var(--content-width-narrow); }

.section {
    padding: 3.5rem 0;
    border-top: 1px solid var(--color-line);
}

.section:first-of-type { border-top: none; }

.section-head {
    max-width: 720px;
    margin-bottom: 2.5rem;
}

.section-head p {
    color: var(--color-muted);
    font-size: 1.05rem;
    margin-bottom: 0;
}

.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.78rem;
    font-weight: 650;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--color-cyan);
    margin-bottom: 0.9rem;
}

.eyebrow::before {
    content: "";
    width: 26px;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--color-cyan));
}

.page-head {
    margin-bottom: 2.5rem;
    max-width: 760px;
}

.page-head .lede {
    font-size: 1.1rem;
    color: var(--color-muted);
    margin-bottom: 0;
}

.back-link {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    color: var(--color-muted);
    font-size: 0.92rem;
    margin-bottom: 1.5rem;
}

.back-link:hover { color: var(--color-cyan); }

/* ------------------------------------------------------------------ *
 * Navigation
 * ------------------------------------------------------------------ */
.site-nav {
    position: sticky;
    top: 0;
    z-index: 50;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;
    padding: 0.9rem clamp(1rem, 4vw, 2.5rem);
    background: rgba(6, 10, 20, 0.72);
    backdrop-filter: blur(18px) saturate(140%);
    -webkit-backdrop-filter: blur(18px) saturate(140%);
    border-bottom: 1px solid transparent;
    transition: border-color var(--duration-base) var(--ease-out),
                background var(--duration-base) var(--ease-out),
                padding var(--duration-base) var(--ease-out);
}

.site-nav.is-scrolled {
    border-bottom-color: var(--color-line);
    background: rgba(6, 10, 20, 0.9);
    padding-top: 0.6rem;
    padding-bottom: 0.6rem;
    box-shadow: var(--shadow-md);
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 0.7rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    color: var(--color-heading);
    font-size: 1.05rem;
}

.brand:hover { color: var(--color-heading); }

.brand img {
    width: 34px;
    height: 34px;
    display: block;
    transition: transform var(--duration-base) var(--ease-out);
}

.brand:hover img { transform: rotate(8deg) scale(1.06); }

.brand-text small {
    display: block;
    font-size: 0.68rem;
    font-weight: 600;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--color-faint);
    line-height: 1;
    margin-top: 2px;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 0.35rem;
    margin-left: auto;
}

.nav-links a {
    position: relative;
    padding: 0.45rem 0.8rem;
    border-radius: var(--radius-pill);
    color: var(--color-muted);
    font-size: 0.94rem;
    font-weight: 550;
    transition: color var(--duration-fast) var(--ease-out), background var(--duration-fast) var(--ease-out);
}

.nav-links a:hover {
    color: var(--color-heading);
    background: rgba(148, 173, 214, 0.1);
}

.nav-links a.is-active { color: var(--color-heading); }

.nav-links a.is-active::after {
    content: "";
    position: absolute;
    left: 0.8rem;
    right: 0.8rem;
    bottom: 0.1rem;
    height: 2px;
    border-radius: 2px;
    background: var(--gradient-accent);
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 0.6rem;
}

.logout-form { display: inline-flex; margin: 0; }

/* Theme switch - a quiet icon toggle between the dark and light palettes. */
.theme-toggle {
    width: 38px;
    height: 38px;
    padding: 0;
    flex: none;
    background: rgba(148, 173, 214, 0.08);
    border: 1px solid var(--color-line-strong);
    color: var(--color-muted);
    border-radius: 50%;
    transition: color var(--duration-fast) var(--ease-out),
                background var(--duration-fast) var(--ease-out),
                transform var(--duration-fast) var(--ease-out);
}

.theme-toggle:hover {
    background: rgba(148, 173, 214, 0.16);
    color: var(--color-heading);
    box-shadow: none;
    transform: rotate(20deg);
}

.theme-toggle::after { display: none; }

/* Midnight/noon glyphs - only one is visible per palette. */
.theme-toggle-icon {
    position: relative;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    display: inline-block;
}

.theme-toggle-icon::before,
.theme-toggle-icon::after {
    content: "";
    position: absolute;
    transition: opacity var(--duration-base) var(--ease-out);
}

/* Noon: a solid sun disc with rays. */
.theme-toggle-icon::before {
    inset: 0;
    border-radius: 50%;
    background: radial-gradient(circle at 35% 35%, currentColor, currentColor 42%, transparent 46%);
    box-shadow: 0 0 0 2px currentColor;
    opacity: 0;
}

/* Midnight: a crescent moon cut out of an outlined disc. */
.theme-toggle-icon::after {
    inset: 0;
    border: 2px solid currentColor;
    border-radius: 50%;
    box-shadow: 4px 3px 0 -2px var(--color-bg) inset;
}

:root[data-theme="light"] .theme-toggle-icon::before { opacity: 1; }
:root[data-theme="light"] .theme-toggle-icon::after { opacity: 0; }

/* Language switch - a small dropdown next to the theme toggle; JS in portal.js wires the open state
   and appends the chosen "lang" query parameter so WebConfig's LocaleChangeInterceptor can pick it up. */
.lang-switch { position: relative; }

.lang-toggle {
    height: 38px;
    padding: 0 0.75rem;
    background: rgba(148, 173, 214, 0.08);
    border: 1px solid var(--color-line-strong);
    color: var(--color-muted);
    border-radius: var(--radius-pill);
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    transition: color var(--duration-fast) var(--ease-out), background var(--duration-fast) var(--ease-out);
}

.lang-toggle:hover {
    background: rgba(148, 173, 214, 0.16);
    color: var(--color-heading);
}

.lang-menu {
    position: absolute;
    top: calc(100% + 0.6rem);
    right: 0;
    z-index: 60;
    min-width: 9rem;
    padding: 0.4rem;
    margin: 0;
    list-style: none;
    background: var(--color-bg-alt);
    border: 1px solid var(--color-line);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-4px);
    transition: opacity var(--duration-fast) var(--ease-out), transform var(--duration-fast) var(--ease-out),
                visibility var(--duration-fast) var(--ease-out);
}

.lang-switch.is-open .lang-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.lang-menu button {
    display: block;
    width: 100%;
    padding: 0.45rem 0.65rem;
    border-radius: var(--radius-sm);
    color: var(--color-muted);
    font-size: 0.88rem;
    font-weight: 500;
    text-align: left;
    background: transparent;
    border: none;
}

.lang-menu button:hover {
    color: var(--color-heading);
    background: rgba(148, 173, 214, 0.1);
}

.lang-menu button.is-active {
    color: var(--color-heading);
    font-weight: 700;
}

.nav-toggle {
    display: none;
    width: 42px;
    height: 42px;
    padding: 0;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: 1px solid var(--color-line);
    border-radius: var(--radius-sm);
    color: var(--color-text);
    cursor: pointer;
}

.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after {
    content: "";
    display: block;
    width: 18px;
    height: 2px;
    border-radius: 2px;
    background: currentColor;
    transition: transform var(--duration-base) var(--ease-out), opacity var(--duration-fast) var(--ease-out);
}

.nav-toggle span::before { transform: translateY(-6px); }
.nav-toggle span::after { transform: translateY(4px); }

.nav-toggle[aria-expanded="true"] span { background: transparent; }
.nav-toggle[aria-expanded="true"] span::before { transform: rotate(45deg); }
.nav-toggle[aria-expanded="true"] span::after { transform: rotate(-45deg) translateY(-1px); }

/* ------------------------------------------------------------------ *
 * Buttons
 * ------------------------------------------------------------------ */
.btn,
button,
input[type="submit"] {
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    font: inherit;
    font-weight: 600;
    font-size: 0.95rem;
    line-height: 1;
    padding: 0.72rem 1.35rem;
    border: 1px solid transparent;
    border-radius: var(--radius-pill);
    cursor: pointer;
    overflow: hidden;
    white-space: nowrap;
    background: var(--gradient-accent);
    color: #04101f;
    transition: transform var(--duration-fast) var(--ease-out),
                box-shadow var(--duration-base) var(--ease-out),
                background var(--duration-base) var(--ease-out),
                color var(--duration-base) var(--ease-out);
}

.btn:hover,
button:hover,
input[type="submit"]:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow);
    color: #04101f;
}

.btn:active,
button:active { transform: translateY(0); }

/* Light sweep across primary buttons on hover. */
.btn::after,
button::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(115deg, transparent 20%, rgba(255, 255, 255, 0.45) 50%, transparent 80%);
    transform: translateX(-120%);
    transition: transform var(--duration-slow) var(--ease-out);
}

.btn:hover::after,
button:hover::after { transform: translateX(120%); }

.btn-ghost,
.btn-secondary {
    background: rgba(148, 173, 214, 0.08);
    border-color: var(--color-line-strong);
    color: var(--color-text);
    backdrop-filter: blur(8px);
}

.btn-ghost:hover,
.btn-secondary:hover {
    background: rgba(148, 173, 214, 0.16);
    color: var(--color-heading);
    box-shadow: none;
}

.btn-ghost::after,
.btn-secondary::after { display: none; }

.btn-lg { padding: 0.95rem 1.9rem; font-size: 1.02rem; }
.btn-sm { padding: 0.5rem 0.95rem; font-size: 0.86rem; }

.btn-link {
    background: none;
    border: none;
    padding: 0;
    color: var(--color-accent);
    font-weight: 600;
}

.btn-link:hover {
    background: none;
    box-shadow: none;
    color: var(--color-cyan);
    transform: none;
}

.btn-link::after { display: none; }

.btn-row {
    display: flex;
    flex-wrap: wrap;
    gap: 0.9rem;
    align-items: center;
}

/* ------------------------------------------------------------------ *
 * Hero
 * ------------------------------------------------------------------ */
.hero {
    position: relative;
    max-width: var(--content-width);
    margin: 0 auto;
    padding: clamp(3rem, 7vw, 6rem) 1.5rem clamp(2.5rem, 5vw, 4.5rem);
    display: grid;
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
    align-items: center;
    gap: clamp(2rem, 5vw, 4rem);
}

.hero-copy { max-width: 640px; }

.hero h1 {
    margin-bottom: 1rem;
    font-size: clamp(2.4rem, 1.5rem + 3.4vw, 4rem);
    letter-spacing: -0.035em;
}

.hero h1 .gradient-text {
    background: linear-gradient(120deg, var(--color-accent) 0%, var(--color-cyan) 45%, var(--color-violet) 100%);
    background-size: 200% 100%;
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    animation: gradientPan 9s ease-in-out infinite alternate;
}

.hero-lede {
    font-size: clamp(1.05rem, 1rem + 0.3vw, 1.22rem);
    color: var(--color-muted);
    margin-bottom: 2rem;
    max-width: 34em;
}

.hero-visual {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-visual img {
    width: 100%;
    max-width: 560px;
    height: auto;
    display: block;
    filter: drop-shadow(0 30px 60px rgba(4, 12, 30, 0.7));
    animation: floatSoft 7s ease-in-out infinite alternate;
}

.hero-visual::before {
    content: "";
    position: absolute;
    width: 70%;
    aspect-ratio: 1;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(79, 143, 247, 0.32), transparent 65%);
    filter: blur(28px);
    animation: pulseGlow 6s ease-in-out infinite;
}

.pill {
    display: inline-flex;
    align-items: center;
    gap: 0.55rem;
    padding: 0.38rem 0.9rem 0.38rem 0.5rem;
    border: 1px solid var(--color-line-strong);
    border-radius: var(--radius-pill);
    background: rgba(148, 173, 214, 0.07);
    color: var(--color-muted);
    font-size: 0.85rem;
    font-weight: 550;
    margin-bottom: 1.4rem;
    backdrop-filter: blur(8px);
}

.pill .dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--color-success);
    box-shadow: 0 0 0 0 rgba(55, 211, 154, 0.7);
    animation: pulseRing 2.4s ease-out infinite;
}

/* ------------------------------------------------------------------ *
 * Stats strip
 * ------------------------------------------------------------------ */
.stat-strip {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 1px;
    background: var(--color-line);
    border: 1px solid var(--color-line);
    border-radius: var(--radius-lg);
    overflow: hidden;
    margin: 1rem 0 0;
}

.stat {
    background: linear-gradient(180deg, rgba(19, 28, 49, 0.9), rgba(10, 16, 32, 0.9));
    padding: 1.6rem 1.5rem;
    text-align: center;
}

.stat .stat-value {
    display: block;
    font-size: clamp(1.6rem, 1.3rem + 1vw, 2.1rem);
    font-weight: 750;
    letter-spacing: -0.03em;
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.stat .stat-label {
    display: block;
    font-size: 0.85rem;
    color: var(--color-muted);
    margin-top: 0.3rem;
}

/* ------------------------------------------------------------------ *
 * Cards
 * ------------------------------------------------------------------ */
.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.4rem;
}

.card-grid--two { grid-template-columns: repeat(auto-fit, minmax(360px, 1fr)); }

.card {
    position: relative;
    background: linear-gradient(180deg, rgba(19, 28, 49, 0.85), rgba(11, 18, 32, 0.85));
    border: 1px solid var(--color-line);
    border-radius: var(--radius-lg);
    padding: 1.8rem;
    overflow: hidden;
    transition: transform var(--duration-base) var(--ease-out),
                border-color var(--duration-base) var(--ease-out),
                box-shadow var(--duration-base) var(--ease-out);
}

/* Accent hairline that lights up on hover. */
.card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: var(--gradient-accent);
    opacity: 0;
    transition: opacity var(--duration-base) var(--ease-out);
}

.card:hover {
    transform: translateY(-6px);
    border-color: var(--color-line-strong);
    box-shadow: var(--shadow-lg);
}

.card:hover::before { opacity: 1; }

.card h3 { margin-bottom: 0.5rem; }

.card p:last-child { margin-bottom: 0; }

.card p { color: var(--color-muted); }

.card-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 52px;
    height: 52px;
    margin-bottom: 1.2rem;
    border-radius: var(--radius-md);
    background: rgba(79, 143, 247, 0.12);
    border: 1px solid rgba(79, 143, 247, 0.28);
    color: var(--color-cyan);
    transition: transform var(--duration-base) var(--ease-out), background var(--duration-base) var(--ease-out);
}

.card:hover .card-icon {
    transform: translateY(-2px) scale(1.05);
    background: rgba(79, 143, 247, 0.2);
}

.card-icon svg { width: 26px; height: 26px; }

.card-list {
    list-style: none;
    padding: 0;
    margin: 1rem 0 0;
    color: var(--color-muted);
}

.card-list li {
    position: relative;
    padding: 0.28rem 0 0.28rem 1.5rem;
}

.card-list li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0.85em;
    width: 7px;
    height: 7px;
    border-radius: 2px;
    background: var(--gradient-accent);
    transform: rotate(45deg);
}

.card-number {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--color-faint);
    letter-spacing: 0.1em;
}

/* Media card - illustration on top, copy below. */
.media-card {
    padding: 0;
    display: flex;
    flex-direction: column;
}

.media-card figure {
    margin: 0;
    aspect-ratio: 16 / 9;
    overflow: hidden;
    border-bottom: 1px solid var(--color-line);
    background: var(--color-bg-alt);
}

.media-card figure img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform var(--duration-slow) var(--ease-out);
}

.media-card:hover figure img { transform: scale(1.05); }

.media-card .media-body { padding: 1.6rem 1.8rem 1.9rem; }

/* ------------------------------------------------------------------ *
 * Quotes
 * ------------------------------------------------------------------ */
.quote {
    position: relative;
    background: linear-gradient(180deg, rgba(19, 28, 49, 0.8), rgba(11, 18, 32, 0.8));
    border: 1px solid var(--color-line);
    border-left: 3px solid transparent;
    border-image: linear-gradient(180deg, var(--color-accent), var(--color-cyan)) 1;
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    padding: 1.6rem 1.8rem;
    color: var(--color-text);
    font-size: 1.02rem;
}

.quote p { font-style: italic; }

.quote footer,
.quote cite {
    display: block;
    font-style: normal;
    font-size: 0.88rem;
    color: var(--color-faint);
    letter-spacing: 0.02em;
}

/* ------------------------------------------------------------------ *
 * Call to action
 * ------------------------------------------------------------------ */
.cta-panel {
    position: relative;
    overflow: hidden;
    text-align: center;
    padding: clamp(2.5rem, 5vw, 4rem) 1.5rem;
    border: 1px solid var(--color-line-strong);
    border-radius: var(--radius-lg);
    background: radial-gradient(ellipse at top, rgba(79, 143, 247, 0.22), transparent 60%),
                linear-gradient(180deg, rgba(19, 28, 49, 0.95), rgba(8, 13, 26, 0.95));
}

.cta-panel::before {
    content: "";
    position: absolute;
    inset: -50% 20%;
    background: conic-gradient(from 0deg, transparent, rgba(53, 214, 234, 0.18), transparent 40%);
    animation: spinSlow 18s linear infinite;
    pointer-events: none;
}

.cta-panel > * { position: relative; }

.cta-panel h2 { margin-bottom: 0.6rem; }

.cta-panel p {
    color: var(--color-muted);
    max-width: 46em;
    margin: 0 auto 1.8rem;
}

.cta-panel .btn-row { justify-content: center; }

/* ------------------------------------------------------------------ *
 * Pricing
 * ------------------------------------------------------------------ */
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    align-items: stretch;
}

.pricing-card {
    position: relative;
    display: flex;
    flex-direction: column;
    background: linear-gradient(180deg, rgba(19, 28, 49, 0.9), rgba(10, 16, 32, 0.9));
    border: 1px solid var(--color-line);
    border-radius: var(--radius-lg);
    padding: 2rem 1.8rem;
    overflow: hidden;
    transition: transform var(--duration-base) var(--ease-out),
                border-color var(--duration-base) var(--ease-out),
                box-shadow var(--duration-base) var(--ease-out);
}

.pricing-card:hover {
    transform: translateY(-6px);
    border-color: var(--color-line-strong);
    box-shadow: var(--shadow-lg);
}

.pricing-card.is-featured {
    border-color: rgba(79, 143, 247, 0.5);
    box-shadow: var(--shadow-glow);
}

.pricing-card.is-featured::before {
    content: "";
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse at top, rgba(79, 143, 247, 0.16), transparent 60%);
    pointer-events: none;
}

.pricing-card > * { position: relative; }

.pricing-badge {
    position: absolute;
    top: 1.1rem;
    right: 1.1rem;
    padding: 0.25rem 0.7rem;
    border-radius: var(--radius-pill);
    background: var(--gradient-accent);
    color: #04101f;
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.pricing-card h2 {
    text-transform: capitalize;
    font-size: 1.5rem;
    margin-bottom: 0.25rem;
}

.pricing-tagline {
    color: var(--color-muted);
    font-size: 0.93rem;
    margin-bottom: 1.4rem;
}

.pricing-price {
    display: flex;
    align-items: baseline;
    gap: 0.4rem;
    margin-bottom: 0.6rem;
}

.pricing-price strong {
    font-family: var(--font-mono);
    font-size: 2.1rem;
    color: var(--color-heading);
}

.pricing-price span {
    color: var(--color-muted);
    font-size: 0.85rem;
}

.pricing-terms {
    list-style: none;
    padding: 0;
    margin: 0 0 1.1rem;
    display: grid;
    gap: 0.35rem;
}

.pricing-terms li {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 1rem;
    color: var(--color-faint);
    font-size: 0.85rem;
}

.pricing-terms li strong {
    font-family: var(--font-mono);
    color: var(--color-muted);
    font-weight: 600;
}

.pricing-limits,
.pricing-features {
    list-style: none;
    padding: 0;
    margin: 0;
}

.pricing-limits {
    display: grid;
    gap: 0.55rem;
    padding: 1.1rem 0;
    border-top: 1px solid var(--color-line);
    border-bottom: 1px solid var(--color-line);
    margin-bottom: 1.1rem;
}

.pricing-limits li {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 1rem;
    color: var(--color-muted);
    font-size: 0.95rem;
}

.pricing-limits li strong {
    font-family: var(--font-mono);
    font-size: 1.05rem;
    color: var(--color-heading);
}

.pricing-features li {
    position: relative;
    padding: 0.3rem 0 0.3rem 1.7rem;
    color: var(--color-muted);
    font-size: 0.95rem;
}

.pricing-features li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0.72em;
    width: 11px;
    height: 6px;
    border-left: 2px solid var(--color-cyan);
    border-bottom: 2px solid var(--color-cyan);
    transform: rotate(-45deg);
}

.pricing-features-empty {
    color: var(--color-faint);
    font-size: 0.95rem;
    margin: 0;
}

.pricing-features--shared {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.6rem;
    max-width: 42em;
    margin: 0 auto;
}

.pricing-features--shared li {
    padding: 0.4rem 1rem;
    background: rgba(53, 214, 234, 0.1);
    border: 1px solid var(--color-line);
    border-radius: var(--radius-pill);
    color: var(--color-muted);
    font-size: 0.85rem;
}

.pricing-features--shared li::before { content: none; }

.pricing-card .card-footer {
    margin-top: auto;
    padding-top: 1.6rem;
}

/* ------------------------------------------------------------------ *
 * Tables
 * ------------------------------------------------------------------ */
.table-wrap {
    width: 100%;
    overflow-x: auto;
    border: 1px solid var(--color-line);
    border-radius: var(--radius-md);
    background: rgba(14, 21, 38, 0.7);
    margin: 0 0 2rem;
}

table.data-table,
table.downloads-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.94rem;
    min-width: 560px;
}

table.data-table th,
table.downloads-table th {
    text-align: left;
    padding: 0.85rem 1rem;
    font-size: 0.76rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--color-faint);
    background: rgba(148, 173, 214, 0.05);
    border-bottom: 1px solid var(--color-line);
    white-space: nowrap;
}

table.data-table td,
table.downloads-table td {
    text-align: left;
    padding: 0.85rem 1rem;
    border-bottom: 1px solid var(--color-line);
    vertical-align: middle;
}

table.data-table tbody tr,
table.downloads-table tbody tr {
    transition: background var(--duration-fast) var(--ease-out);
}

table.data-table tbody tr:hover,
table.downloads-table tbody tr:hover { background: rgba(148, 173, 214, 0.06); }

table.data-table tbody tr:last-child td,
table.downloads-table tbody tr:last-child td { border-bottom: none; }

.sha256 {
    font-family: var(--font-mono);
    font-size: 0.78rem;
    color: var(--color-faint);
    word-break: break-all;
    max-width: 22ch;
    display: inline-block;
}

/* ------------------------------------------------------------------ *
 * Status badges
 * ------------------------------------------------------------------ */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.2rem 0.65rem;
    border-radius: var(--radius-pill);
    font-size: 0.78rem;
    font-weight: 600;
    letter-spacing: 0.02em;
    text-transform: capitalize;
    background: rgba(148, 173, 214, 0.12);
    color: var(--color-muted);
    border: 1px solid var(--color-line);
}

.badge::before {
    content: "";
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: currentColor;
}

.badge-success { background: rgba(55, 211, 154, 0.12); color: var(--color-success); border-color: rgba(55, 211, 154, 0.32); }
.badge-warning { background: rgba(240, 182, 76, 0.12); color: var(--color-warning); border-color: rgba(240, 182, 76, 0.32); }
.badge-error   { background: rgba(255, 107, 107, 0.12); color: var(--color-error); border-color: rgba(255, 107, 107, 0.32); }

/* ------------------------------------------------------------------ *
 * Panels, notices, forms
 * ------------------------------------------------------------------ */
.panel {
    background: linear-gradient(180deg, rgba(19, 28, 49, 0.85), rgba(11, 18, 32, 0.85));
    border: 1px solid var(--color-line);
    border-radius: var(--radius-lg);
    padding: 1.8rem;
    margin-bottom: 2rem;
}

.panel > :last-child { margin-bottom: 0; }

.panel-head {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    margin-bottom: 1.4rem;
}

.panel-head h2,
.panel-head h3 { margin-bottom: 0; }

.empty-state {
    background: rgba(148, 173, 214, 0.04);
    border: 1px dashed var(--color-line-strong);
    border-radius: var(--radius-lg);
    padding: 2.2rem;
    text-align: center;
    color: var(--color-muted);
}

.empty-state > :last-child { margin-bottom: 0; }

.notice {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    padding: 0.9rem 1.1rem;
    border-radius: var(--radius-md);
    border: 1px solid var(--color-line);
    background: rgba(148, 173, 214, 0.07);
    margin-bottom: 1.5rem;
}

.issued-code-banner {
    border-color: rgba(55, 211, 154, 0.4);
    background: rgba(55, 211, 154, 0.1);
    color: var(--color-text);
    animation: fadeUp var(--duration-slow) var(--ease-out) both;
}

.issued-code-banner strong {
    font-family: var(--font-mono);
    letter-spacing: 0.08em;
    color: var(--color-success);
}

.form-error {
    border-color: rgba(255, 107, 107, 0.4);
    background: rgba(255, 107, 107, 0.1);
    color: #ffd0d0;
    animation: shake 420ms var(--ease-out);
}

.form-notice {
    border-color: rgba(79, 143, 247, 0.4);
    background: rgba(79, 143, 247, 0.1);
}

form.login-form,
form.admin-form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    max-width: 420px;
}

form.admin-form { max-width: 100%; }

form.login-form label,
form.admin-form label {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
    font-size: 0.82rem;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--color-faint);
}

input,
select,
textarea {
    font: inherit;
    width: 100%;
    padding: 0.7rem 0.9rem;
    color: var(--color-text);
    background: rgba(6, 10, 20, 0.6);
    border: 1px solid var(--color-line-strong);
    border-radius: var(--radius-sm);
    transition: border-color var(--duration-fast) var(--ease-out),
                box-shadow var(--duration-fast) var(--ease-out),
                background var(--duration-fast) var(--ease-out);
}

input::placeholder { color: var(--color-faint); }

input:focus,
select:focus,
textarea:focus {
    outline: none;
    border-color: var(--color-accent);
    background: rgba(6, 10, 20, 0.9);
    box-shadow: 0 0 0 3px rgba(79, 143, 247, 0.2);
}

select {
    appearance: none;
    background-image: linear-gradient(45deg, transparent 50%, var(--color-muted) 50%),
                      linear-gradient(135deg, var(--color-muted) 50%, transparent 50%);
    background-position: calc(100% - 18px) 50%, calc(100% - 13px) 50%;
    background-size: 5px 5px, 5px 5px;
    background-repeat: no-repeat;
    padding-right: 2.4rem;
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    align-items: end;
}

.form-grid button { justify-self: start; }

/* The auth screen is a centred panel over the ambient backdrop. */
.content.page-login {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 70vh;
}

.auth-card {
    width: 100%;
    max-width: 440px;
    padding: 2.5rem;
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-line-strong);
    background: linear-gradient(180deg, rgba(19, 28, 49, 0.92), rgba(9, 14, 28, 0.92));
    box-shadow: var(--shadow-lg);
    backdrop-filter: blur(14px);
    animation: fadeUp var(--duration-slow) var(--ease-out) both;
}

.auth-card > img {
    display: block;
    margin-bottom: 1.3rem;
    border-radius: var(--radius-md);
}

.auth-card h1 { font-size: 1.9rem; }

.auth-card .auth-sub {
    color: var(--color-muted);
    margin-bottom: 1.8rem;
}

.auth-card form { max-width: 100%; }

.auth-card button { width: 100%; margin-top: 0.5rem; }

.auth-foot {
    margin: 1.6rem 0 0;
    font-size: 0.88rem;
    color: var(--color-faint);
    text-align: center;
}

/* ------------------------------------------------------------------ *
 * Documentation
 * ------------------------------------------------------------------ */
.docs-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1rem;
}

.docs-list li { display: flex; }

.docs-list a {
    position: relative;
    display: flex;
    align-items: center;
    gap: 1rem;
    width: 100%;
    padding: 1.2rem 1.4rem;
    border: 1px solid var(--color-line);
    border-radius: var(--radius-md);
    background: rgba(19, 28, 49, 0.6);
    color: var(--color-text);
    font-weight: 600;
    transition: transform var(--duration-base) var(--ease-out),
                border-color var(--duration-base) var(--ease-out),
                background var(--duration-base) var(--ease-out);
}

.docs-list a:hover {
    transform: translateX(4px);
    border-color: var(--color-line-strong);
    background: rgba(25, 36, 62, 0.8);
    color: var(--color-heading);
}

.docs-list a::after {
    content: "→";
    margin-left: auto;
    color: var(--color-accent);
    transition: transform var(--duration-base) var(--ease-out);
}

.docs-list a:hover::after { transform: translateX(4px); }

.doc-foot {
    margin-top: 3rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--color-line);
}

.doc-foot .back-link { margin-bottom: 0; }

.doc-index {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 34px;
    height: 34px;
    flex: none;
    border-radius: var(--radius-sm);
    background: rgba(79, 143, 247, 0.12);
    border: 1px solid rgba(79, 143, 247, 0.25);
    color: var(--color-cyan);
    font-family: var(--font-mono);
    font-size: 0.85rem;
}

/* ------------------------------------------------------------------ *
 * Prose - server-rendered markdown (home page, docs articles)
 * ------------------------------------------------------------------ */
.prose {
    max-width: 78ch;
    font-size: 1.02rem;
    color: var(--color-text);
}

.prose > h1,
.prose > h2 {
    margin-top: 2.4rem;
    padding-top: 2.4rem;
    border-top: 1px solid var(--color-line);
}

.prose > h1:first-child,
.prose > h2:first-child {
    margin-top: 0;
    padding-top: 0;
    border-top: none;
}

.prose h3 { margin-top: 2rem; }
.prose h4 { margin-top: 1.6rem; color: var(--color-cyan); }

.prose ul,
.prose ol { padding-left: 1.3rem; margin: 0 0 1.2rem; }

.prose li { margin: 0.35rem 0; }

.prose ul { list-style: none; padding-left: 0; }

.prose ul li {
    position: relative;
    padding-left: 1.5rem;
}

.prose ul li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0.72em;
    width: 7px;
    height: 7px;
    border-radius: 2px;
    background: var(--gradient-accent);
    transform: rotate(45deg);
}

.prose blockquote {
    margin: 1.8rem 0;
    padding: 1.4rem 1.6rem;
    border: 1px solid var(--color-line);
    border-left: 3px solid var(--color-accent);
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    background: rgba(19, 28, 49, 0.7);
    color: var(--color-text);
    font-style: italic;
}

.prose blockquote > :last-child { margin-bottom: 0; }

.prose hr {
    border: none;
    height: 1px;
    margin: 2.5rem 0;
    background: linear-gradient(90deg, transparent, var(--color-line-strong), transparent);
}

.prose table {
    width: 100%;
    border-collapse: collapse;
    margin: 1.6rem 0;
    font-size: 0.95rem;
    border: 1px solid var(--color-line);
    border-radius: var(--radius-md);
    overflow: hidden;
}

.prose th {
    text-align: left;
    padding: 0.8rem 1rem;
    background: rgba(148, 173, 214, 0.06);
    color: var(--color-faint);
    font-size: 0.76rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    border-bottom: 1px solid var(--color-line);
}

.prose td {
    padding: 0.8rem 1rem;
    border-bottom: 1px solid var(--color-line);
    color: var(--color-muted);
}

.prose tbody tr:last-child td { border-bottom: none; }

.prose code {
    padding: 0.15em 0.4em;
    border-radius: 5px;
    background: rgba(148, 173, 214, 0.12);
    border: 1px solid var(--color-line);
    font-size: 0.88em;
    color: var(--color-cyan);
}

.prose pre {
    padding: 1.2rem 1.4rem;
    border-radius: var(--radius-md);
    border: 1px solid var(--color-line);
    background: rgba(4, 8, 18, 0.85);
    overflow-x: auto;
    margin: 1.5rem 0;
}

.prose pre code {
    padding: 0;
    border: none;
    background: none;
    color: var(--color-text);
    font-size: 0.88rem;
    line-height: 1.7;
}

.prose img {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius-md);
}

/* ------------------------------------------------------------------ *
 * Footer
 * ------------------------------------------------------------------ */
.site-footer {
    flex: none;
    border-top: 1px solid var(--color-line);
    background: rgba(6, 10, 20, 0.7);
    backdrop-filter: blur(10px);
    padding: 3rem clamp(1rem, 4vw, 2.5rem) 2rem;
    color: var(--color-muted);
    font-size: 0.92rem;
}

.footer-inner {
    max-width: var(--content-width);
    margin: 0 auto;
    display: grid;
    grid-template-columns: minmax(240px, 1.4fr) repeat(auto-fit, minmax(150px, 1fr));
    gap: 2.5rem;
}

.footer-brand p {
    max-width: 34ch;
    color: var(--color-faint);
    margin: 1rem 0 0;
    font-size: 0.9rem;
}

.footer-col h4 {
    font-size: 0.76rem;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--color-faint);
    margin-bottom: 0.9rem;
}

.footer-col ul {
    list-style: none;
    padding: 0;
    margin: 0;
    display: grid;
    gap: 0.5rem;
}

.footer-col a { color: var(--color-muted); }
.footer-col a:hover { color: var(--color-cyan); }

.footer-bottom {
    max-width: var(--content-width);
    margin: 2.5rem auto 0;
    padding-top: 1.5rem;
    border-top: 1px solid var(--color-line);
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    font-size: 0.86rem;
    color: var(--color-faint);
}

.footer-bottom img {
    width: 22px;
    height: 22px;
    border-radius: 5px;
    vertical-align: middle;
    margin-right: 0.5rem;
}

/* ------------------------------------------------------------------ *
 * Scroll reveal - opt-in, driven by portal.js
 * ------------------------------------------------------------------ */
.reveal {
    opacity: 0;
    transform: translateY(22px);
    transition: opacity var(--duration-slow) var(--ease-out),
                transform var(--duration-slow) var(--ease-out);
}

.reveal.is-visible {
    opacity: 1;
    transform: none;
}

/* Staggered children inside a revealed group. */
.reveal-group.is-visible > * { animation: fadeUp var(--duration-slow) var(--ease-out) both; }
.reveal-group.is-visible > *:nth-child(2) { animation-delay: 80ms; }
.reveal-group.is-visible > *:nth-child(3) { animation-delay: 160ms; }
.reveal-group.is-visible > *:nth-child(4) { animation-delay: 240ms; }
.reveal-group.is-visible > *:nth-child(5) { animation-delay: 320ms; }
.reveal-group.is-visible > *:nth-child(6) { animation-delay: 400ms; }

/* ------------------------------------------------------------------ *
 * Keyframes
 * ------------------------------------------------------------------ */
@keyframes fadeUp {
    from { opacity: 0; transform: translateY(22px); }
    to   { opacity: 1; transform: none; }
}

@keyframes floatSoft {
    from { transform: translateY(-10px); }
    to   { transform: translateY(10px); }
}

@keyframes pulseGlow {
    0%, 100% { opacity: 0.55; transform: scale(0.95); }
    50%      { opacity: 1; transform: scale(1.08); }
}

@keyframes pulseRing {
    0%   { box-shadow: 0 0 0 0 rgba(55, 211, 154, 0.6); }
    70%  { box-shadow: 0 0 0 9px rgba(55, 211, 154, 0); }
    100% { box-shadow: 0 0 0 0 rgba(55, 211, 154, 0); }
}

@keyframes gradientPan {
    from { background-position: 0% 50%; }
    to   { background-position: 100% 50%; }
}

@keyframes auroraDrift {
    from { transform: translate3d(-2%, -1%, 0) scale(1); }
    to   { transform: translate3d(2%, 2%, 0) scale(1.08); }
}

@keyframes spinSlow {
    to { transform: rotate(360deg); }
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25%      { transform: translateX(-5px); }
    75%      { transform: translateX(5px); }
}

/* ------------------------------------------------------------------ *
 * Responsive
 * ------------------------------------------------------------------ */
@media (max-width: 960px) {
    .hero {
        grid-template-columns: 1fr;
        text-align: left;
    }

    .hero-visual { order: -1; max-width: 460px; }
}

@media (max-width: 800px) {
    .nav-toggle { display: inline-flex; }

    .nav-links,
    .nav-actions {
        display: none;
        width: 100%;
    }

    .site-nav.is-open {
        flex-wrap: wrap;
        row-gap: 0.75rem;
    }

    .site-nav.is-open .nav-links,
    .site-nav.is-open .nav-actions {
        display: flex;
        flex-direction: column;
        align-items: stretch;
        gap: 0.25rem;
        animation: fadeUp var(--duration-base) var(--ease-out) both;
    }

    .site-nav.is-open .nav-links a { padding: 0.7rem 0.9rem; }

    .site-nav.is-open .nav-actions {
        padding-bottom: 0.5rem;
        gap: 0.6rem;
    }

    .site-nav.is-open .nav-actions .btn,
    .site-nav.is-open .logout-form,
    .site-nav.is-open .logout-form button { width: 100%; }

    .site-nav.is-open .lang-switch { width: 100%; }
    .site-nav.is-open .lang-toggle { width: 100%; }
    .site-nav.is-open .lang-menu { left: 0; right: 0; }
}

@media (max-width: 600px) {
    .content { padding: 2rem 1.1rem 3.5rem; }
    .card, .pricing-card, .panel { padding: 1.4rem; }
    .auth-card { padding: 1.8rem; }
    .footer-inner { grid-template-columns: 1fr; gap: 2rem; }
}

/* ------------------------------------------------------------------ *
 * Accessibility - honour the OS "reduce motion" setting
 * ------------------------------------------------------------------ */
@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }

    *,
    *::before,
    *::after {
        animation-duration: 0.001ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.001ms !important;
    }

    .reveal { opacity: 1; transform: none; }
}

/* ------------------------------------------------------------------ *
 * Light theme - activated by [data-theme="light"] on <html> (see portal.js).
 * All base rules already read design tokens; this block only swaps the
 * palette and the few surfaces that were baked with hard-coded dark rgba.
 * ------------------------------------------------------------------ */
:root[data-theme="light"] {
    /* Surfaces - cool pale steel ramp */
    --color-bg: #f6f8fc;
    --color-bg-alt: #edf0f7;

    /* Lines */
    --color-line: rgba(21, 42, 84, 0.12);
    --color-line-strong: rgba(21, 42, 84, 0.22);

    /* Text */
    --color-text: #1a2233;
    --color-heading: #0f1626;
    --color-muted: #57637a;
    --color-faint: #8a94a7;

    /* Brand - deepened for contrast on pale surfaces */
    --color-accent: #2f6fd6;
    --color-cyan: #0e97a8;
    --color-violet: #7c5cf0;

    /* Semantic */
    --color-success: #0f9d6e;
    --color-warning: #b5801f;
    --color-error: #de3f3f;

    /* Ambient backdrop softened so it reads as a wash, not a night sky */
    --gradient-aurora: radial-gradient(circle at 20% 20%, rgba(79, 143, 247, 0.22), transparent 55%),
                       radial-gradient(circle at 80% 10%, rgba(14, 151, 168, 0.16), transparent 50%),
                       radial-gradient(circle at 60% 80%, rgba(124, 92, 240, 0.16), transparent 55%);

    /* Elevation */
    --shadow-md: 0 12px 28px -12px rgba(15, 30, 60, 0.18);
    --shadow-lg: 0 32px 64px -28px rgba(15, 30, 60, 0.22);
    --shadow-glow: 0 0 0 1px rgba(47, 111, 214, 0.3), 0 18px 45px -18px rgba(47, 111, 214, 0.4);

    color-scheme: light;
}

:root[data-theme="light"] body::before { opacity: 0.22; }

:root[data-theme="light"] ::selection { color: #fff; }

:root[data-theme="light"] .site-nav {
    background: rgba(246, 248, 252, 0.78);
}

:root[data-theme="light"] .site-nav.is-scrolled { background: rgba(246, 248, 252, 0.94); }

:root[data-theme="light"] .site-footer { background: rgba(246, 248, 252, 0.8); }

:root[data-theme="light"] .nav-links a:hover { background: rgba(21, 42, 84, 0.07); }

:root[data-theme="light"] .btn-ghost,
:root[data-theme="light"] .btn-secondary {
    background: rgba(21, 42, 84, 0.05);
}

:root[data-theme="light"] .btn-ghost:hover,
:root[data-theme="light"] .btn-secondary:hover { background: rgba(21, 42, 84, 0.1); }

:root[data-theme="light"] .pill { background: rgba(255, 255, 255, 0.65); }

:root[data-theme="light"] .stat,
:root[data-theme="light"] .card,
:root[data-theme="light"] .quote,
:root[data-theme="light"] .pricing-card,
:root[data-theme="light"] .panel {
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.92), rgba(240, 245, 252, 0.92));
}

:root[data-theme="light"] .cta-panel {
    background: radial-gradient(ellipse at top, rgba(47, 111, 214, 0.14), transparent 60%),
                linear-gradient(180deg, rgba(255, 255, 255, 0.96), rgba(240, 245, 252, 0.96));
}

:root[data-theme="light"] .auth-card {
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.94), rgba(240, 245, 252, 0.94));
}

:root[data-theme="light"] .table-wrap { background: rgba(255, 255, 255, 0.7); }

:root[data-theme="light"] .docs-list a { background: rgba(10, 20, 40, 0.03); }
:root[data-theme="light"] .docs-list a:hover { background: rgba(21, 42, 84, 0.06); }

:root[data-theme="light"] input,
:root[data-theme="light"] select,
:root[data-theme="light"] textarea {
    background: rgba(255, 255, 255, 0.85);
}

:root[data-theme="light"] input:focus,
:root[data-theme="light"] select:focus,
:root[data-theme="light"] textarea:focus { background: #ffffff; }

:root[data-theme="light"] .prose blockquote { background: rgba(255, 255, 255, 0.6); }

/* Code blocks stay on a dark well in both themes for contrast. */
:root[data-theme="light"] .prose pre { background: #0d1526; }
:root[data-theme="light"] .prose pre code { color: #d9e2f4; }

:root[data-theme="light"] .form-error { color: #b3202c; }

@media print {
    body::before, body::after,
    .site-nav, .site-footer { display: none; }

    body { background: #fff; color: #000; }
}