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

:root {
  --font-main: "Space Grotesk", sans-serif;
  --font-body: "Inter", sans-serif;
  --font-mono: "JetBrains Mono", "Fira Code", monospace;
  --radius: 18px;

  --bg: #0b1120;
  --card-bg: #111a2e;
  --card-hover: #16213a;
  --text-primary: #e6edf7;
  --text-secondary: rgba(230, 237, 247, 0.65);
  --border-color: rgba(148, 163, 184, 0.15);
  --accent: #2dd4bf;
  --accent-2: #38bdf8;
  --accent-soft: rgba(45, 212, 191, 0.12);
  --on-accent: #042f2e;
  --shadow-color: rgba(0, 0, 0, 0.35);
  --header-solid: rgba(11, 17, 32, 0.8);
  --grid-line: rgba(148, 163, 184, 0.05);
  --input-bg: #0d1526;

  --danger: #f87171;
  --danger-soft: rgba(248, 113, 113, 0.12);
  --warning: #fbbf24;
  --warning-soft: rgba(251, 191, 36, 0.12);
  --ok: #34d399;
  --ok-soft: rgba(52, 211, 153, 0.12);
}

[data-theme="light"] {
  --bg: #f6f8fb;
  --card-bg: #ffffff;
  --card-hover: #f1f5f9;
  --text-primary: #0f172a;
  --text-secondary: rgba(15, 23, 42, 0.68);
  --border-color: rgba(15, 23, 42, 0.1);
  --accent: #0d9488;
  --accent-2: #0284c7;
  --accent-soft: rgba(13, 148, 136, 0.1);
  --on-accent: #ffffff;
  --shadow-color: rgba(15, 23, 42, 0.08);
  --header-solid: rgba(246, 248, 251, 0.85);
  --grid-line: rgba(15, 23, 42, 0.04);
  --input-bg: #f8fafc;

  --danger: #dc2626;
  --danger-soft: rgba(220, 38, 38, 0.08);
  --warning: #d97706;
  --warning-soft: rgba(217, 119, 6, 0.1);
  --ok: #059669;
  --ok-soft: rgba(5, 150, 105, 0.1);
}

html {
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  font-family: var(--font-main);
  color: var(--text-primary);
  background: var(--bg);
  overflow-x: hidden;
  transition: background-color 0.3s ease, color 0.3s ease;
}

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

button,
input,
textarea {
  font: inherit;
  color: inherit;
}

button {
  background: none;
  border: none;
  cursor: pointer;
}

.bg-grid {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background-image:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse at top, #000 20%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse at top, #000 20%, transparent 75%);
}

.container {
  width: 100%;
  max-width: 960px;
  margin: 0 auto;
  padding: 0 clamp(16px, 4vw, 32px);
}

main {
  flex: 1;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--header-solid);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border-color);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  height: 68px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 16px;
  font-weight: 600;
  white-space: nowrap;
}

.logo i {
  color: var(--accent);
}

.logo span {
  color: var(--accent);
}

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

.header-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 12px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color 0.25s ease, background 0.25s ease;
}

.header-link:hover {
  color: var(--text-primary);
  background: var(--card-hover);
}

.header-link i {
  font-size: 11px;
}

.icon-btn {
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  transition: border-color 0.25s ease;
}

.icon-btn:hover {
  border-color: var(--accent);
}

.theme-btn .fa-sun { color: #f59e0b; display: none; }
.theme-btn .fa-moon { color: var(--accent); }
[data-theme="light"] .theme-btn .fa-sun { display: inline; }
[data-theme="light"] .theme-btn .fa-moon { display: none; }

.lang-switch {
  display: flex;
  align-items: center;
  gap: 2px;
  height: 40px;
  padding: 4px;
  border-radius: 999px;
  background: var(--card-bg);
  border: 1px solid var(--border-color);
}

.lang-switch span {
  display: grid;
  place-items: center;
  height: 100%;
  padding: 0 9px;
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  color: var(--text-secondary);
  transition: all 0.25s ease;
}

.lang-switch span.active {
  background: var(--accent);
  color: var(--on-accent);
}

.page-hero {
  padding: clamp(40px, 8vh, 72px) 0 clamp(24px, 4vh, 36px);
  text-align: center;
}

.eyebrow {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--accent);
  margin-bottom: 10px;
}

.page-hero h1 {
  font-size: clamp(34px, 6vw, 52px);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.1;
}

.page-hero p {
  max-width: 620px;
  margin: 14px auto 0;
  font-family: var(--font-body);
  font-size: clamp(15px, 2vw, 17px);
  line-height: 1.7;
  color: var(--text-secondary);
}

.privacy-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 20px;
  padding: 7px 14px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--ok);
  background: var(--ok-soft);
  border-radius: 999px;
}

.card {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: clamp(18px, 3vw, 28px);
  box-shadow: 0 10px 30px var(--shadow-color);
}

.card + .card,
.card + .grid-2,
.grid-2 + .card {
  margin-top: 20px;
}

.card-title {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 16px;
}

.card-title i {
  color: var(--accent);
}

.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.grid-2 .card + .card {
  margin-top: 0;
}

.muted {
  font-family: var(--font-body);
  font-size: 14px;
  line-height: 1.65;
  color: var(--text-secondary);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 20px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 600;
  transition: all 0.25s ease;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: var(--on-accent);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px var(--accent-soft);
}

.btn-ghost {
  border: 1px solid var(--border-color);
  color: var(--text-primary);
}

.btn-ghost:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.site-footer {
  margin-top: 60px;
  border-top: 1px solid var(--border-color);
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  padding-top: 24px;
  padding-bottom: 24px;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--text-secondary);
}

.footer-inner a {
  color: var(--accent);
}

.footer-links {
  display: flex;
  gap: 16px;
}

.tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
}

.tool-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 26px;
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}

a.tool-card:hover {
  transform: translateY(-5px);
  border-color: var(--accent);
  box-shadow: 0 16px 36px var(--shadow-color);
}

.tool-card.soon {
  opacity: 0.65;
}

.tool-icon {
  width: 52px;
  height: 52px;
  display: grid;
  place-items: center;
  border-radius: 14px;
  font-size: 22px;
  color: var(--on-accent);
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  margin-bottom: 6px;
}

.tool-card.soon .tool-icon {
  background: var(--card-hover);
  color: var(--text-secondary);
}

.tool-card h2 {
  font-size: 21px;
}

.tool-card p {
  flex: 1;
  font-family: var(--font-body);
  font-size: 14.5px;
  line-height: 1.6;
  color: var(--text-secondary);
}

.tool-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 600;
  color: var(--accent);
}

.badge {
  position: absolute;
  top: 18px;
  right: 18px;
  padding: 3px 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  border-radius: 999px;
  color: var(--text-secondary);
  border: 1px solid var(--border-color);
}

.badge.live {
  color: var(--ok);
  border-color: transparent;
  background: var(--ok-soft);
}

@media (max-width: 720px) {
  .grid-2 {
    grid-template-columns: 1fr;
  }

  .header-link .link-text {
    display: none;
  }
}

@media (max-width: 400px) {
  .logo .logo-text {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}