/*
Theme Name: ismoli
Theme URI: https://ismoli.is
Author: Ismolar ehf.
Description: Pure Icelandic Nutrition — Minimal brand theme
Version: 3.0
Text Domain: ismoli
*/

/* ═══════════════════════════════════════
   CSS Variables — Light Mode
═══════════════════════════════════════ */
:root {
  --iceland-blue: #00b4d8;
  --iceland-blue-hover: #0096b7;
  --aurora-green: #00d4aa;
  --deep-ink: #1a2332;
  --arctic-navy: #0a1628;

  --bg: #ffffff;
  --bg-alt: #f0f2f5;
  --surface: #f1f3f5;
  --border: #e4e7eb;
  --text-primary: #1a2332;
  --text-secondary: #5a6474;
  --text-muted: #9aa0ab;

  --header-bg: rgba(255,255,255,0.96);
  --header-border: rgba(0,0,0,0.08);
  --footer-bg: #0a1628;
  --footer-text: rgba(255,255,255,0.7);

  --font-heading: 'Plus Jakarta Sans', system-ui, sans-serif;
  --font-body: 'Inter', system-ui, sans-serif;

  --shadow-sm: 0 2px 8px rgba(26,35,50,0.07);
  --shadow-md: 0 8px 24px rgba(26,35,50,0.12);
  --shadow-lg: 0 16px 48px rgba(26,35,50,0.18);
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --transition: 200ms ease;
}

/* ═══════════════════════════════════════
   Dark Mode Variables
═══════════════════════════════════════ */
[data-theme="dark"] {
  --bg: #0d1117;
  --bg-alt: #161b22;
  --surface: #1c2128;
  --border: #30363d;
  --text-primary: #e6edf3;
  --text-secondary: #8b949e;
  --text-muted: #484f58;

  --header-bg: rgba(13,17,23,0.96);
  --header-border: rgba(255,255,255,0.08);
  --footer-bg: #010409;
  --footer-text: rgba(230,237,243,0.6);

  --shadow-sm: 0 2px 8px rgba(0,0,0,0.4);
  --shadow-md: 0 8px 24px rgba(0,0,0,0.5);
  --shadow-lg: 0 16px 48px rgba(0,0,0,0.6);
}

/* ═══════════════════════════════════════
   Reset & Base
═══════════════════════════════════════ */
*, *::before, *::after { box-sizing: border-box; }

html {
  padding: 0;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}
body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--text-primary);   /* ← 使用 CSS 变量，dark mode 自动切换 */
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  transition: background var(--transition), color var(--transition);
}

/* ═══════════════════════════════════════
   Typography
═══════════════════════════════════════ */
h1, h2, h3, h4 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  color: var(--text-primary);   /* ← 用 CSS 变量 */
}
h1 { font-size: clamp(2rem, 5vw, 4rem); letter-spacing: -0.025em; }
h2 { font-size: clamp(1.5rem, 3vw, 2.5rem); letter-spacing: -0.015em; }
h3 { font-size: clamp(1.125rem, 2vw, 1.5rem); }
p  { color: var(--text-secondary); }

a { color: var(--iceland-blue); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--iceland-blue-hover); }

/* ═══════════════════════════════════════
   Bilingual Toggle
═══════════════════════════════════════ */
[data-lang="en"] { display: none; }
html[lang="en"] [data-lang="is"] { display: none; }
html[lang="en"] [data-lang="en"] { display: inline; }

/* ═══════════════════════════════════════
   Layout
═══════════════════════════════════════ */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}
section { padding: 5rem 0; }

/* ═══════════════════════════════════════
   Header — Desktop 3-column layout
   Left | Center | Right
═══════════════════════════════════════ */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 200;
  background: var(--header-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--header-border);
  transition: background var(--transition), border-color var(--transition);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
  gap: 1rem;
}

/* Hamburger — hidden on desktop */
.hamburger {
  display: none;      /* shown only via @media query on mobile */
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  border-radius: var(--radius-sm);
  flex-shrink: 0;
  transition: background var(--transition);
}
.hamburger:hover { background: var(--surface); }
.hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: all var(--transition);
}

/* Logo — centered on mobile, left on desktop */
.site-logo {
  flex-shrink: 0;
}
.site-logo img {
  height: 34px;
  width: auto;
  display: block;
  /* Light mode: black logo; Dark mode header: white logo */
  filter: brightness(0) saturate(100%);
  transition: filter var(--transition);
}
[data-theme="dark"] .site-logo img {
  filter: brightness(0) invert(1);
}

/* Desktop Nav — centered between logo and actions */
.site-nav {
  display: flex;
  align-items: center;
  gap: 0.125rem;
  flex: 1;
  justify-content: center;
}
.site-nav a {
  display: inline-flex;
  align-items: center;
  padding: 0.5rem 0.875rem;
  font-family: var(--font-heading);
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-decoration: none;
  border-radius: var(--radius-sm);
  transition: color var(--transition), background var(--transition);
  letter-spacing: 0.01em;
}
.site-nav a:hover {
  color: var(--iceland-blue);
  background: var(--surface);
}

/* Header Actions — right side */
.header-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-shrink: 0;
}

/* Theme toggle */
.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: none;
  border: none;
  cursor: pointer;
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  transition: background var(--transition), color var(--transition);
}
.theme-toggle:hover { background: var(--surface); }

/* Sun/Moon — one visible at a time */
.icon-moon { display: none; }
[data-theme="dark"] .icon-sun  { display: none; }
[data-theme="dark"] .icon-moon { display: block; }

/* Lang toggle */
.lang-toggle {
  background: none;
  border: 1px solid var(--border);
  padding: 0.375rem 0.75rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-family: var(--font-body);
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--text-primary);
  transition: all var(--transition);
  letter-spacing: 0.05em;
}
.lang-toggle:hover {
  border-color: var(--iceland-blue);
  color: var(--iceland-blue);
}

/* ═══════════════════════════════════════
   Mobile Nav Overlay
═══════════════════════════════════════ */
.mobile-nav {
  position: fixed;
  inset: 0;
  z-index: 300;
  background: rgba(0,0,0,0.5);
  opacity: 0;
  pointer-events: none;
  transition: opacity 250ms ease;
  backdrop-filter: blur(3px);
  -webkit-backdrop-filter: blur(3px);
}
.mobile-nav.active {
  opacity: 1;
  pointer-events: all;
}

.mobile-nav-inner {
  position: absolute;
  top: 0; left: 0;
  width: min(300px, 88vw);
  height: 100%;
  /* Background follows current theme */
  background: var(--bg);
  box-shadow: 4px 0 24px rgba(0,0,0,0.15);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0;
  transform: translateX(-100%);
  transition: transform 280ms cubic-bezier(0.4, 0, 0.2, 1), background var(--transition);
}
.mobile-nav.active .mobile-nav-inner {
  transform: translateX(0);
}

.nav-close {
  align-self: flex-end;
  background: none;
  border: none;
  font-size: 1.75rem;
  line-height: 1;
  cursor: pointer;
  color: var(--text-secondary);
  padding: 0.25rem 0.5rem;
  margin-bottom: 1.5rem;
  border-radius: var(--radius-sm);
  transition: color var(--transition), background var(--transition);
}
.nav-close:hover {
  color: var(--text-primary);
  background: var(--surface);
}

.mobile-nav-inner a {
  display: block;
  padding: 1rem 0.75rem;
  font-family: var(--font-heading);
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text-primary);
  border-bottom: 1px solid var(--border);
  transition: color var(--transition), padding-left var(--transition), border-color var(--transition);
}
.mobile-nav-inner a:hover {
  color: var(--iceland-blue);
  padding-left: 1.25rem;
}
.mobile-nav-inner a:last-child { border-bottom: none; }

/* ═══════════════════════════════════════
   Hero Section — Flowing Cloud Aurora (v2.5)
═══════════════════════════════════════ */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding-top: 64px;
  overflow: hidden;
  /* Deep night sky gradient */
  background: linear-gradient(180deg, #020810 0%, #041020 30%, #081828 60%, #0a1628 100%);
}

/* Base: Static glow foundation */
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 100% 50% at 50% -10%, rgba(0,180,216,0.15) 0%, transparent 60%),
    radial-gradient(ellipse 80% 40% at 30% 10%, rgba(0,212,170,0.12) 0%, transparent 50%),
    radial-gradient(ellipse 70% 35% at 70% 5%, rgba(139,92,246,0.10) 0%, transparent 45%);
  z-index: 0;
}

/* Cloud Wave 1 — Bottom-left to top-right, slow drift */
.hero::after {
  content: '';
  position: absolute;
  width: 200%; height: 200%;
  left: -50%; top: -50%;
  background:
    radial-gradient(ellipse 80% 50% at 20% 80%, rgba(0,212,170,0.35) 0%, transparent 50%),
    radial-gradient(ellipse 100% 60% at 60% 70%, rgba(0,180,216,0.28) 0%, transparent 45%),
    radial-gradient(ellipse 70% 45% at 40% 60%, rgba(139,92,246,0.22) 0%, transparent 40%);
  filter: blur(60px) brightness(1.2);
  z-index: 1;
  pointer-events: none;
}

/* Cloud Wave 2 — Top-right to bottom-left, reverse drift */
.aurora-mid {
  position: absolute;
  width: 200%; height: 200%;
  left: -50%; top: -50%;
  background:
    radial-gradient(ellipse 90% 55% at 75% 25%, rgba(139,92,246,0.32) 0%, transparent 45%),
    radial-gradient(ellipse 110% 65% at 85% 45%, rgba(168,85,247,0.25) 0%, transparent 50%),
    radial-gradient(ellipse 75% 50% at 65% 35%, rgba(0,180,216,0.28) 0%, transparent 40%);
  filter: blur(50px) brightness(1.15);
  z-index: 2;
  pointer-events: none;
}

/* Cloud Wave 3 — Center pulse, breathing glow */
.aurora-near {
  position: absolute;
  width: 200%; height: 200%;
  left: -50%; top: -50%;
  background:
    radial-gradient(ellipse 120% 70% at 50% 30%, rgba(0,212,170,0.40) 0%, transparent 55%),
    radial-gradient(ellipse 100% 60% at 40% 40%, rgba(0,180,216,0.35) 0%, transparent 50%),
    radial-gradient(ellipse 80% 50% at 60% 35%, rgba(139,92,246,0.30) 0%, transparent 45%);
  filter: blur(40px) brightness(1.3);
  z-index: 3;
  pointer-events: none;
}

/* Shimmer — Subtle star points */
.aurora-shimmer {
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(1.5px 1.5px at 15% 20%, rgba(255,255,255,0.9), transparent),
    radial-gradient(2px 2px at 35% 15%, rgba(255,255,255,0.85), transparent),
    radial-gradient(1px 1px at 55% 25%, rgba(255,255,255,0.8), transparent),
    radial-gradient(1.5px 1.5px at 75% 18%, rgba(255,255,255,0.75), transparent),
    radial-gradient(1px 1px at 25% 35%, rgba(255,255,255,0.7), transparent),
    radial-gradient(2px 2px at 65% 30%, rgba(255,255,255,0.85), transparent),
    radial-gradient(1px 1px at 85% 28%, rgba(255,255,255,0.8), transparent),
    radial-gradient(1.5px 1.5px at 45% 12%, rgba(255,255,255,0.75), transparent);
  z-index: 4;
  pointer-events: none;
}

/* Cloud Wave 4 — Top corona, soft crown */
.aurora-corona {
  position: absolute;
  width: 200%; height: 200%;
  left: -50%; top: -50%;
  background:
    radial-gradient(ellipse 150% 90% at 50% 10%, rgba(139,92,246,0.28) 0%, transparent 50%),
    radial-gradient(ellipse 120% 70% at 30% 5%, rgba(168,85,247,0.22) 0%, transparent 45%),
    radial-gradient(ellipse 130% 75% at 70% 8%, rgba(0,180,216,0.25) 0%, transparent 48%);
  filter: blur(55px) brightness(1.2);
  z-index: 5;
  pointer-events: none;
}

/* ═══════════════════════════════════════
   Cloud Flow Keyframes — v2.5 Soft Waves
═══════════════════════════════════════ */


  33% {
    transform: translate(3%, 2%) scale(1.05);
    opacity: 0.85;
    filter: blur(65px) brightness(1.3);
  }
  66% {
    transform: translate(-2%, -3%) scale(1.08);
    opacity: 1.1;
    filter: blur(55px) brightness(1.15);
  }
  100% {
    transform: translate(1%, -1%) scale(1.02);
    opacity: 0.95;
    filter: blur(62px) brightness(1.25);
  }
}


  25% {
    transform: translate(-4%, -2%) scale(1.06);
    opacity: 0.9;
    filter: blur(55px) brightness(1.25);
  }
  50% {
    transform: translate(2%, 3%) scale(1.1);
    opacity: 1.15;
    filter: blur(48px) brightness(1.1);
  }
  75% {
    transform: translate(-1%, 1%) scale(1.04);
    opacity: 0.88;
    filter: blur(52px) brightness(1.2);
  }
  100% {
    transform: translate(3%, -2%) scale(1.07);
    opacity: 1.05;
    filter: blur(50px) brightness(1.15);
  }
}


  50% {
    transform: translate(2%, 1%) scale(1.06);
    opacity: 1.15;
    filter: blur(50px) brightness(1.3);
  }
  100% {
    transform: translate(-1%, -1%) scale(1.03);
    opacity: 0.9;
    filter: blur(58px) brightness(1.15);
  }
}


  25% { opacity: 0.6; }
  50% { opacity: 0.9; }
  75% { opacity: 0.7; }
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
  .hero::after,
  .aurora-mid,
  .aurora-near,
  .aurora-shimmer,
  .aurora-corona {
    animation: none;
  }
}

.hero-content {
  position: relative;
  z-index: 10;

  padding: 2rem 1.5rem;
  text-shadow: 0 2px 20px rgba(0,0,0,0.5), 0 0 40px rgba(0,0,0,0.3);
}
.hero-logo {
  width: 100px;
  height: auto;
  margin-bottom: 2rem;
}
.hero h1 {
  margin-bottom: 1rem;
  color: #ffffff;
}
.hero p {
  font-size: clamp(1rem, 2.5vw, 1.25rem);
  color: rgba(255,255,255,0.8);
  margin: 0 auto 2.5rem;
}

/* ═══════════════════════════════════════
   Buttons
═══════════════════════════════════════ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.875rem 1.75rem;
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition);
  border: none;
  text-decoration: none;
}
.btn-primary {
  background: var(--iceland-blue);
  color: #fff;
}
.btn-primary:hover {
  background: var(--iceland-blue-hover);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}
.btn-outline {
  background: transparent;
  border: 2px solid var(--iceland-blue);
  color: var(--iceland-blue);
}
.btn-outline:hover {
  background: var(--iceland-blue);
  color: #fff;
}

/* ═══════════════════════════════════════
   Cards
═══════════════════════════════════════ */
.card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
}
.card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
  border-color: var(--iceland-blue);
}
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5rem;
}

/* ═══════════════════════════════════════
   Products Section
═══════════════════════════════════════ */
.products-section { background: var(--bg); }
.products-section h2 { text-align: center; margin-bottom: 3rem; }
.product-card { text-align: center; }
.product-icon { font-size: 2.75rem; margin-bottom: 1rem; }
.product-card h3 { margin-bottom: 0.5rem; }
.product-card p { color: var(--text-secondary); font-size: 0.9375rem; margin: 0 auto; }

/* ═══════════════════════════════════════
   Why Iceland Section
═══════════════════════════════════════ */
.why-section { background: var(--bg-alt); }
.why-section h2 { text-align: center; margin-bottom: 3rem; }
.value-card { text-align: center; }
.value-icon { font-size: 2.5rem; margin-bottom: 1rem; }
.value-card h3 { margin-bottom: 0.5rem; }
.value-card p { color: var(--text-secondary); margin: 0 auto; }

/* ═══════════════════════════════════════
   CTA Section
═══════════════════════════════════════ */
.cta-section {
  background: var(--deep-ink);
  color: #fff;
  text-align: center;
}
.cta-section h2 { color: #fff; margin-bottom: 1rem; }
.cta-section p { color: rgba(255,255,255,0.7); margin: 0 auto 2rem; }

/* ═══════════════════════════════════════
   Footer
═══════════════════════════════════════ */
.site-footer {
  background: var(--footer-bg);
  color: var(--footer-text);

  transition: background var(--transition), color var(--transition);
}
.footer-inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 1.5rem;
}
.footer-logo img {
  height: 28px;
  filter: brightness(0) invert(1);
}
.footer-info { text-align: right; }
.footer-info p { font-size: 0.875rem; margin-bottom: 0.25rem; color: var(--footer-text); }
.footer-info a { color: var(--footer-text); }
.footer-info a:hover { color: var(--iceland-blue); }

/* ═══════════════════════════════════════
   Page Templates
═══════════════════════════════════════ */
.page-header {
  padding: 8rem 0 4rem;
  background: var(--bg-alt);
  text-align: center;
  transition: background var(--transition);
}
.page-header h1 { margin-bottom: 1rem; }
.page-content { padding: 4rem 0; }

/* 404 */
.error-404 { text-align: center; padding: 8rem 0; }
.error-404 h1 { font-size: 6rem; color: var(--iceland-blue); }

/* ═══════════════════════════════════════
   Responsive — Mobile ≤ 768px
   Hamburger appears | Logo centers | Nav slides in
═══════════════════════════════════════ */
@media (max-width: 768px) {
  section { padding: 3.5rem 0; }

  /* Header: hamburger left | logo center | actions right */
  .header-inner { justify-content: space-between; }

  .hamburger { display: flex; }        /* show hamburger */
  .site-nav   { display: none; }       /* hide desktop nav */

  .site-logo { flex: 1; text-align: center; }
  .site-logo img { height: 30px; display: inline-block; }

  .header-actions { flex-shrink: 0; }

  /* Footer */
  .footer-inner { flex-direction: column; text-align: center; }
  .footer-info { text-align: center; }

  /* Cards */
  .card-grid { grid-template-columns: 1fr 1fr; gap: 1rem; }
}

/* ═══════════════════════════════════════
   Responsive — Small Mobile ≤ 480px
═══════════════════════════════════════ */
@media (max-width: 480px) {
  .container { padding: 0 1rem; }
  section { padding: 2.5rem 0; }
  .hero { padding-top: 64px; }
  .hero-logo { width: 80px; }
  .card-grid { grid-template-columns: 1fr; }
  .card { padding: 1.5rem; }
  .btn { padding: 0.75rem 1.5rem; font-size: 0.9375rem; }
  .page-header { padding: 6rem 0 2.5rem; }
}

/* ═══════════════════════════════════════
   Animations
═══════════════════════════════════════ */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}
.fade-in { animation: fadeIn 0.6s ease-out forwards; }
/* ========================================
/* ========================================
   Footer 样式 — 最终版 v5
   ======================================== */

.site-footer {
    background: linear-gradient(180deg, #1a2332 0%, #0f141c 100%);
    color: #ffffff;
    margin-top: auto;
    border-top: 3px solid var(--iceland-blue);
}

/* ===== 主内容区 ===== */
.footer-main {
    display: grid;
    grid-template-columns: 1.3fr 1fr 1fr;
    gap: 3rem;
    padding: 3rem 1.5rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

/* 品牌区块 */
.footer-brand {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.footer-logo img {
    height: 52px;
    width: auto;
    filter: brightness(0) invert(1);
}

.footer-slogan {
    font-size: 1.1rem;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.85);
    margin: 0;
    line-height: 1.5;
    letter-spacing: 0.02em;
}

/* 导航区块 */
.footer-nav h4,
.footer-social h4 {
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--iceland-blue);
    margin: 0 0 1.25rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid rgba(0, 180, 216, 0.3);
}

.footer-nav ul {
    list-style: none;
    margin: 0;
    padding: 1rem 1.5rem;
}

.footer-nav li {
    margin-bottom: 0.6rem;
}

.footer-nav a {
    color: #ffffff;
    font-size: 0.95rem;
    text-decoration: none;
    transition: color 0.2s, padding-left 0.2s;
    display: inline-block;
}

.footer-nav a:hover {
    color: var(--aurora-green);
    padding-left: 0.5rem;
}

/* 社交媒体 */
.footer-social .social-links {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.social-link {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    color: #ffffff;
    font-size: 0.95rem;
    text-decoration: none;
    padding: 0.55rem 1rem;
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.06);
    transition: background 0.2s, transform 0.2s;
}

.social-link:hover {
    background: rgba(255, 255, 255, 0.12);
    transform: translateX(4px);
}

.social-link svg {
    flex-shrink: 0;
}

.social-link.instagram svg {
    color: #E4405F;
}

.social-link.linkedin svg {
    color: #0A66C2;
}

.social-link span {
    color: rgba(255, 255, 255, 0.85);
}

/* ===== 底部信息条：一行不换行 ===== */
.footer-bottom {
    background: rgba(0, 0, 0, 0.25);
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    padding: 1rem 1.5rem;
}

.footer-info {
    margin: 0;
    font-size: 0.8rem;
    color: rgba(255, 255, 255, 0.6);
    text-align: center;
    line-height: 1.6;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.footer-info .sep {
    margin: 0 0.75rem;
    opacity: 0.4;
}

.footer-info .sep-dot {
    margin: 0 0.5rem;
    opacity: 0.4;
}

.footer-info .server-info {
    color: rgba(255, 255, 255, 0.65);
}

.footer-info strong {
    color: var(--aurora-green);
    font-weight: 600;
}

#footer-time {
    font-family: 'JetBrains Mono', 'Consolas', monospace;
}

/* ===== 双语切换 ===== */
.footer-brand [data-lang="en"],
.footer-nav [data-lang="en"],
.footer-social [data-lang="en"],
.footer-info [data-lang="en"] {
    display: none;
}

html[lang="en"] .footer-brand [data-lang="is"],
html[lang="en"] .footer-nav [data-lang="is"],
html[lang="en"] .footer-social [data-lang="is"],
html[lang="en"] .footer-info [data-lang="is"] {
    display: none;
}

html[lang="en"] .footer-brand [data-lang="en"],
html[lang="en"] .footer-nav [data-lang="en"],
html[lang="en"] .footer-social [data-lang="en"],
html[lang="en"] .footer-info [data-lang="en"] {
    display: inline;
}

/* ===== Dark Mode ===== */
[data-theme="dark"] .site-footer {
    background: linear-gradient(180deg, #0a0e15 0%, #060810 100%);
    border-top-color: var(--aurora-green);
}

[data-theme="dark"] .footer-nav h4,
[data-theme="dark"] .footer-social h4 {
    color: var(--aurora-green);
    border-bottom-color: rgba(0, 212, 170, 0.3);
}

[data-theme="dark"] .footer-info strong {
    color: var(--iceland-blue);
}

/* ===== 响应式 ===== */
@media (max-width: 900px) {
    .footer-main {
        grid-template-columns: 1fr 1fr;
        gap: 2.5rem;
    }
    
    .footer-brand {
        grid-column: 1 / -1;
        text-align: center;
        align-items: center;
    }
    
    .footer-slogan {
        font-size: 1rem;
    }
}

@media (max-width: 600px) {
    .footer-main {
        grid-template-columns: 1fr;
        gap: 2rem;
        padding: 2.5rem 1rem 1.5rem;
        text-align: center;
    }
    
    .footer-logo img {
        height: 44px;
    }
    
    .footer-nav ul {
        display: flex;
        flex-wrap: wrap;
        justify-content: center;
        gap: 0.5rem 1.25rem;
    }
    
    .footer-nav li {
        margin-bottom: 0;
    }
    
    .footer-nav a:hover {
        padding-left: 0;
    }
    
    .footer-social .social-links {
        flex-direction: row;
        justify-content: center;
        flex-wrap: wrap;
        gap: 0.6rem;
    }
    
    .social-link {
        padding: 0.45rem 0.7rem;
    }
    
    .social-link:hover {
        transform: none;
        background: rgba(255, 255, 255, 0.15);
    }
    
    /* 移动端：允许换行，隐藏竖线分隔符 */
    .footer-info {
        white-space: normal;
        font-size: 0.7rem;
        line-height: 1.8;
    }
    
    .footer-info .sep {
        display: none;
    }
    
    .footer-info .sep-dot {
        margin: 0 0.3rem;
    }
}