/* ==========================================================================
   KillerBot Shell CSS — Base styles shared across all sub-pages
   (commands, changelog, thanks, 404, etc.)
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800&display=swap');

/* ── CSS Design Tokens (same as index.css) ── */
:root {
  --bg-color: #060608;
  --bg-gradient: radial-gradient(circle at top, #111115, #060608 70%);
  --card-bg: rgba(255, 255, 255, 0.015);
  --card-border: rgba(255, 255, 255, 0.06);
  --text-color: #f1f2f6;
  --subtext-color: #8c8c9e;
  --accent-color: #ffffff;
  --accent-gradient: linear-gradient(135deg, #ffffff, #8c8c9e);
  --hover-accent: #e2e8f0;
  --link-color: #cbd5e1;
  --header-height: 72px;
  --transition: 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  --glass-blur: blur(4px);
  --shadow-soft: 0 4px 20px rgba(0, 0, 0, 0.25);
  --card-radius: 16px;
}

body.light {
  --bg-color: #f8fafc;
  --bg-gradient: radial-gradient(circle at top right, #ffffff, #f1f5f9 60%);
  --card-bg: rgba(255, 255, 255, 0.7);
  --card-border: rgba(0, 0, 0, 0.06);
  --text-color: #0f172a;
  --subtext-color: #475569;
  --accent-color: #1e293b;
  --accent-gradient: linear-gradient(135deg, #1e293b, #64748b);
  --link-color: #475569;
  --shadow-soft: 0 8px 32px rgba(0, 0, 0, 0.06);
}

/* ── Reset & Base ── */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  background: var(--bg-color);
  background-image: var(--bg-gradient);
  background-attachment: fixed;
  color: var(--text-color);
  font-family: 'Outfit', 'Segoe UI', sans-serif;
  font-weight: 400;
  line-height: 1.6;
  overflow-x: hidden;
  min-height: 100vh;
  transition: background-color 0.6s cubic-bezier(0.16, 1, 0.3, 1), color 0.6s cubic-bezier(0.16, 1, 0.3, 1);
  cursor: default;
  display: flex;
  flex-direction: column;
}

a { color: var(--link-color); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--accent-color); }

h1, h2, h3, h4 {
  font-family: 'Outfit', sans-serif;
  font-weight: 700;
  letter-spacing: -0.02em;
}

h1 {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  background: var(--accent-gradient);
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1.1;
}

h2 {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  background: var(--accent-gradient);
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

p { font-weight: 300; }

/* ── Page wrapper ── */
.page-shell {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

main {
  flex: 1;
  padding: 4rem 5%;
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
}

/* ── Glass Panel ── */
.glass-panel {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--card-radius);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
}

.glass-panel:hover {
  border-color: rgba(255, 255, 255, 0.12);
  box-shadow: var(--shadow-soft);
}

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 24px;
  border-radius: 50px;
  font-family: 'Outfit', sans-serif;
  font-weight: 600;
  font-size: 0.95rem;
  border: none;
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
}

.btn-primary {
  background: var(--accent-gradient);
  color: #000;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.3);
  color: #000;
}

.btn-outline {
  background: transparent;
  color: var(--text-color);
  border: 1px solid var(--card-border);
}

.btn-outline:hover {
  background: var(--card-bg);
  border-color: rgba(255,255,255,0.2);
  transform: translateY(-2px);
  color: var(--text-color);
}

/* ── Navigation ── */
.main-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  padding: 0 4vw;
  margin-top: 16px;
  height: var(--header-height);
  display: flex;
  align-items: center;
}

.nav-frame {
  width: 100%;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 50px;
  padding: 0 20px;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: background var(--transition), border-color var(--transition);
}

.left-section, .right-section {
  display: flex;
  align-items: center;
  gap: 20px;
}

#logo {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  transition: transform var(--transition);
}

#logo:hover { transform: scale(1.08) rotate(5deg); }

.nav-links { display: flex; gap: 8px; }

.nav-item {
  padding: 7px 15px;
  border-radius: 20px;
  font-weight: 500;
  font-size: 0.95rem;
  color: var(--text-color);
  transition: all var(--transition);
}

.nav-item:hover, .nav-item.active {
  background: rgba(255, 255, 255, 0.08);
  color: var(--accent-color);
}

/* Login Button */
.btn-login {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  color: var(--text-color);
  padding: 7px 20px;
  border-radius: 50px;
  font-weight: 600;
  font-size: 0.9rem;
  transition: all var(--transition);
}

.btn-login:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.2);
  color: var(--text-color);
}

/* Theme Toggle */
.toggle-mode {
  border: none;
  background: transparent;
  color: var(--text-color);
  width: 38px;
  height: 38px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  cursor: pointer;
  transition: all var(--transition);
}

.toggle-mode:hover {
  background: rgba(255, 255, 255, 0.07);
  transform: rotate(15deg);
}

/* Animated SVG icon */
.theme-icon {
  width: 20px;
  height: 20px;
  color: var(--text-color);
  transition: transform 0.5s cubic-bezier(0.34, 1.56, 0.64, 1), color 0.4s ease;
}

.moon-path {
  opacity: 1;
  transform-origin: center;
  transition: opacity 0.4s ease, transform 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
  transform: scale(1) rotate(0deg);
}

.sun-core, .sun-rays {
  opacity: 0;
  transform-origin: center;
  transition: opacity 0.4s ease, transform 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
  transform: scale(0.4) rotate(-90deg);
}

body.light .moon-path {
  opacity: 0;
  transform: scale(0.4) rotate(90deg);
}

body.light .sun-core,
body.light .sun-rays {
  opacity: 1;
  transform: scale(1) rotate(0deg);
}

.toggle-mode:hover .theme-icon { transform: rotate(20deg) scale(1.15); }

/* Theme Flash */
.theme-flash {
  position: fixed;
  inset: 0;
  background: rgba(255, 255, 255, 0.12);
  z-index: 9998;
  pointer-events: none;
  opacity: 0;
  animation: themeFlash 0.5s ease-out forwards;
}

@keyframes themeFlash {
  0% { opacity: 0.25; }
  100% { opacity: 0; }
}

/* Hamburger */
.hamburger {
  display: none;
  border: none;
  background: transparent;
  color: var(--text-color);
  width: 38px;
  height: 38px;
  border-radius: 50%;
  place-items: center;
  font-size: 1.2rem;
  cursor: pointer;
  transition: all var(--transition);
}

.hamburger:hover {
  background: rgba(255, 255, 255, 0.05);
}

/* ── Section helpers ── */
.section-head {
  text-align: center;
  margin-bottom: 3rem;
}

.label-line {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--subtext-color);
  border: 1px solid var(--card-border);
  border-radius: 50px;
  padding: 4px 14px;
  margin-bottom: 1rem;
}

/* ── Footer ── */
footer {
  background: var(--card-bg);
  border-top: 1px solid var(--card-border);
  padding: 3rem 5%;
  margin-top: auto;
}

.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 2rem;
  margin-bottom: 2.5rem;
}

.footer-col h4 {
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--subtext-color);
  margin-bottom: 1rem;
}

.footer-col ul { list-style: none; display: flex; flex-direction: column; gap: 10px; }

.footer-col a {
  color: var(--subtext-color);
  font-size: 0.9rem;
  transition: color var(--transition);
}

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

.footer-bottom {
  border-top: 1px solid var(--card-border);
  padding-top: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-bottom p { font-size: 0.85rem; color: var(--subtext-color); }

.footer-logo {
  width: 28px;
  height: 28px;
  border-radius: 8px;
  opacity: 0.7;
}

/* ── Fade-in animation ── */
.fade-up {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1), transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}

.fade-up.visible { opacity: 1; transform: translateY(0); }

/* ── Tech Badge ── */
.badge {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--text-color);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--card-border);
  border-radius: 6px;
  padding: 3px 10px;
}

/* ── Mobile ── */
@media (max-width: 768px) {
  main { padding: 2.5rem 1.5rem; }

  .hamburger { display: grid; }

  .nav-links {
    position: absolute;
    top: calc(var(--header-height) + 8px);
    left: 16px;
    right: 16px;
    flex-direction: column;
    background: rgba(10, 10, 15, 0.98);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--card-border);
    border-radius: 20px;
    padding: 0;
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    pointer-events: none;
    z-index: 9999;
    transition: max-height 0.3s ease, opacity 0.3s ease, padding 0.3s ease;
  }

  .nav-links.active {
    max-height: 300px;
    opacity: 1;
    pointer-events: auto;
    padding: 1rem;
  }

  .nav-item { text-align: center; border-radius: 12px; }

  footer { padding: 2.5rem 1.5rem; }

  .footer-bottom { flex-direction: column; text-align: center; }
}