:root,
[data-theme="dark"] {
  --bg: #0b1020;
  --surface: #1a2440;
  --surface-elevated: #243356;
  --text: #f5f7ff;
  --muted: #b4c0de;
  --accent: #ff2d55;
  --accent-hover: #ff5c7a;
  --accent-dark: #d9143a;
  --accent-soft: rgba(255, 45, 85, 0.18);
  --accent-text: #ffd0da;
  --border: rgba(255, 255, 255, 0.12);
  --shadow: 0 16px 40px rgba(0, 0, 0, 0.4);
  --shadow-soft: 0 6px 22px rgba(0, 0, 0, 0.28);
  --gradient-a: #ff2d55;
  --gradient-b: #00d4ff;
  --gradient-c: #7b5cff;
  --hero-bg: linear-gradient(145deg, rgba(36, 51, 86, 0.95) 0%, rgba(26, 36, 64, 0.98) 55%, rgba(18, 24, 48, 1) 100%);
  --card-bg: linear-gradient(165deg, #2a3b63 0%, #1c2a4d 100%);
  --nav-bg: linear-gradient(180deg, #243356 0%, #1a2440 100%);
  --footer-bg: linear-gradient(180deg, #10182c 0%, #070b16 100%);
  --footer-text: rgba(245, 247, 255, 0.75);
  --body-glow: rgba(255, 45, 85, 0.28);
  --body-glow-2: rgba(0, 212, 255, 0.18);
  --page-bg: linear-gradient(165deg, #1a1030 0%, #0b1020 42%, #071018 100%);
}

[data-theme="light"] {
  --bg: #f4f7ff;
  --surface: #ffffff;
  --surface-elevated: #ffffff;
  --text: #141b2f;
  --muted: #4d5b7a;
  --accent: #e01845;
  --accent-hover: #ff3b63;
  --accent-dark: #b01035;
  --accent-soft: rgba(224, 24, 69, 0.12);
  --accent-text: #b01035;
  --border: rgba(20, 27, 47, 0.1);
  --shadow: 0 16px 36px rgba(40, 60, 120, 0.14);
  --shadow-soft: 0 6px 18px rgba(40, 60, 120, 0.1);
  --gradient-a: #ff3b63;
  --gradient-b: #00b7e6;
  --gradient-c: #6a5cff;
  --hero-bg: linear-gradient(145deg, #ffffff 0%, #f3f6ff 55%, #eef4ff 100%);
  --card-bg: linear-gradient(165deg, #ffffff 0%, #f7f9ff 100%);
  --nav-bg: linear-gradient(180deg, #ffffff 0%, #f5f8ff 100%);
  --footer-bg: linear-gradient(180deg, #eef3ff 0%, #e4ecff 100%);
  --footer-text: rgba(20, 27, 47, 0.7);
  --body-glow: rgba(255, 59, 99, 0.22);
  --body-glow-2: rgba(0, 183, 230, 0.16);
  --page-bg: linear-gradient(165deg, #fff5f8 0%, #f4f7ff 45%, #eaf6ff 100%);
}

* {
  box-sizing: border-box;
}

html {
  margin: 0;
  height: 100%;
  background: var(--bg);
  color-scheme: dark;
  -webkit-font-smoothing: antialiased;
}

html[data-theme="light"] {
  color-scheme: light;
}

body {
  margin: 0;
  min-height: 100%;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  font-family: "Segoe UI", "Avenir Next", "Century Gothic", sans-serif;
  background:
    radial-gradient(ellipse 90% 60% at 15% -10%, var(--body-glow), transparent 55%),
    radial-gradient(ellipse 70% 50% at 90% 10%, var(--body-glow-2), transparent 50%),
    var(--page-bg);
  background-attachment: fixed;
  color: var(--text);
  position: relative;
  overflow-x: hidden;
  transition: background 0.25s ease, color 0.25s ease;
}

::selection {
  background: var(--accent-soft);
  color: var(--text);
}

body > .container {
  flex: 1 0 auto;
  padding-top: clamp(1.25rem, 4vw, 2rem);
  padding-bottom: clamp(2rem, 6vw, 3.5rem);
}

.container {
  width: min(920px, 92%);
  margin: 0 auto;
}

header {
  padding: 0;
  margin: 0;
  width: 100%;
}

.nav {
  width: 100%;
  background: var(--nav-bg);
  border: none;
  border-bottom: 1px solid var(--border);
  box-shadow: var(--shadow-soft);
  padding: 0.75rem 0;
  backdrop-filter: blur(8px);
}

.nav-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem;
}

.nav-brand {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  font-weight: 800;
  letter-spacing: 0.02em;
  color: var(--text);
  margin-right: auto;
  font-size: 1.05rem;
  text-decoration: none;
  min-width: 0;
}

.nav-logo {
  width: 34px;
  height: 34px;
  object-fit: cover;
  border-radius: 50%;
  border: 2px solid var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

.nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  padding: 0;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--surface);
  color: var(--text);
  cursor: pointer;
  flex-shrink: 0;
  transition: background-color 0.2s ease, border-color 0.2s ease;
}

.nav-toggle:hover {
  background: var(--accent-soft);
  border-color: var(--accent);
}

.nav-toggle:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.nav-toggle-bars {
  display: flex;
  flex-direction: column;
  gap: 5px;
  width: 20px;
}

.nav-toggle-bars span {
  display: block;
  height: 2px;
  border-radius: 1px;
  background: currentColor;
}

.nav-menu {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.25rem 0.55rem;
}

.nav-menu a {
  text-decoration: none;
  color: var(--accent);
  font-weight: 600;
  padding: 0.45rem 0.85rem;
  border-radius: 8px;
  transition: background-color 0.2s ease, color 0.2s ease;
  display: inline-block;
}

.nav-menu a:hover,
.nav-menu a.active {
  background-color: var(--accent-soft);
  color: var(--accent-text);
}

.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  min-width: 42px;
  height: 42px;
  padding: 0 0.75rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--surface);
  color: var(--text);
  font: inherit;
  font-size: 0.85rem;
  font-weight: 700;
  cursor: pointer;
  flex-shrink: 0;
  transition: background-color 0.2s ease, border-color 0.2s ease, transform 0.15s ease;
}

.theme-toggle:hover {
  background: var(--accent-soft);
  border-color: var(--accent);
  transform: translateY(-1px);
}

.theme-toggle:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.hero {
  padding: clamp(1.35rem, 3.2vw, 1.9rem) clamp(1.2rem, 3vw, 1.6rem);
  margin: 0 0 1.5rem;
  background: var(--hero-bg);
  border: 1px solid var(--border);
  border-left: 4px solid var(--accent);
  border-radius: 18px;
  box-shadow: var(--shadow);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  inset: auto -20% -40% auto;
  width: 220px;
  height: 220px;
  background: radial-gradient(circle, var(--body-glow-2), transparent 70%);
  pointer-events: none;
}

.hero h1 {
  letter-spacing: -0.02em;
  position: relative;
  background: linear-gradient(120deg, var(--text) 20%, var(--accent-hover) 85%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

[data-theme="light"] .hero h1 {
  background: linear-gradient(120deg, #141b2f 10%, #e01845 70%, #0090c8 120%);
  -webkit-background-clip: text;
  background-clip: text;
}

.random-stuff-section h2 {
  margin: 0 0 0.35rem;
  font-size: clamp(1.35rem, 3vw, 1.75rem);
  position: relative;
}

.card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 16px;
  box-shadow: var(--shadow-soft);
  padding: 1.15rem 1.2rem;
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}

h1,
h2,
h3 {
  margin: 0 0 1rem;
  line-height: 1.2;
  color: var(--text);
}

h1 {
  font-size: clamp(1.8rem, 3vw, 2.6rem);
}

p {
  margin: 0;
  color: var(--muted);
  line-height: 1.7;
  font-size: 1rem;
}

.intro {
  margin-bottom: 0.85rem;
  max-width: 62ch;
  position: relative;
}

.intro:last-child {
  margin-bottom: 0;
}

.inline-link {
  color: var(--accent);
  font-weight: 700;
  text-decoration: underline;
  text-underline-offset: 0.15em;
}

.inline-link:hover {
  color: var(--accent-hover);
}

.button {
  display: inline-block;
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-dark) 100%);
  color: #fff;
  text-decoration: none;
  font-weight: 700;
  padding: 0.7rem 1rem;
  border: none;
  cursor: pointer;
  border-radius: 10px;
  font: inherit;
  box-shadow: 0 6px 16px var(--accent-soft);
  transition: transform 0.2s ease, filter 0.2s ease;
}

.button:hover {
  filter: brightness(1.08);
  transform: translateY(-1px);
}

.button.active {
  background: linear-gradient(135deg, var(--accent-dark) 0%, var(--accent) 100%);
  color: #fff;
}

.button-secondary {
  background: var(--accent-soft);
  color: var(--accent-text);
  box-shadow: none;
}

.button-secondary:hover {
  filter: none;
  background: color-mix(in srgb, var(--accent) 28%, transparent);
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 1.15rem;
}

.card h3 {
  margin-bottom: 0.5rem;
  color: var(--text);
}

.card:hover {
  transform: translateY(-3px);
  border-color: color-mix(in srgb, var(--accent) 45%, var(--border));
  box-shadow: var(--shadow);
}

#wip-projects,
#finished-projects {
  margin: 1.2rem 0 0.75rem;
}

.project-nav-buttons {
  display: flex;
  gap: 0.65rem;
  flex-wrap: wrap;
  margin-top: 1rem;
  position: relative;
}

.site-footer {
  flex-shrink: 0;
  margin-top: auto;
  background: var(--footer-bg);
  border-top: 1px solid var(--border);
  color: var(--footer-text);
  font-size: 0.92rem;
  text-align: center;
}

.site-footer .container {
  padding: 1.1rem 0 1.25rem;
}

.card a {
  color: var(--accent);
  font-weight: 600;
}

.card a:hover {
  color: var(--accent-hover);
}

/* Random Stuff keypad */
body.keypad-open {
  overflow: hidden;
}

.keypad-overlay {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  background: rgba(8, 12, 24, 0.72);
  backdrop-filter: blur(4px);
}

.keypad-overlay[hidden] {
  display: none;
}

.keypad-panel {
  width: min(680px, 96vw);
  padding: 1.15rem;
  background: var(--surface-elevated);
  border: 1px solid var(--border);
  border-radius: 18px;
  box-shadow: var(--shadow);
}

.keypad-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(180px, 240px);
  gap: 1rem;
  align-items: stretch;
}

.keypad-main {
  min-width: 0;
}

.keypad-display-wrap {
  margin-bottom: 0.65rem;
}

.keypad-display {
  min-height: 2.75rem;
  padding: 0.65rem 0.85rem;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--surface);
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: 0.35em;
  text-align: center;
  color: var(--text);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  transition: border-color 0.2s ease, background-color 0.2s ease;
}

.keypad-display.is-correct {
  border-color: #22c55e;
  background: rgba(34, 197, 94, 0.14);
}

.keypad-entry {
  font-variant-numeric: tabular-nums;
}

.keypad-success-icon {
  color: #22c55e;
  font-size: 1.6rem;
  line-height: 1;
  letter-spacing: 0;
  font-weight: 800;
}

.keypad-clue {
  padding: 1rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
}

.keypad-clue h3 {
  margin: 0 0 0.55rem;
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent-text);
}

.keypad-clue p {
  margin: 0;
  color: var(--muted);
  line-height: 1.55;
  font-size: 0.95rem;
}

.keypad-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 0.85rem;
}

.keypad-header h2 {
  margin: 0;
  font-size: 1.15rem;
}

.keypad-close {
  width: 36px;
  height: 36px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--surface);
  color: var(--text);
  font-size: 1.4rem;
  line-height: 1;
  cursor: pointer;
}

.keypad-error {
  margin: 0 0 0.65rem;
  color: var(--accent);
  font-size: 0.9rem;
  font-weight: 600;
  text-align: center;
}

.keypad-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.55rem;
}

.keypad-key {
  padding: 0.85rem 0;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--surface);
  color: var(--text);
  font: inherit;
  font-size: 1.1rem;
  font-weight: 700;
  cursor: pointer;
  transition: background-color 0.15s ease, border-color 0.15s ease;
}

.keypad-key:hover {
  background: var(--accent-soft);
  border-color: var(--accent);
}

.keypad-enter {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-dark) 100%);
  color: #fff;
  border-color: transparent;
}

.keypad-enter:hover {
  filter: brightness(1.08);
}

.well-done-hero {
  text-align: center;
}

.well-done-hero .intro {
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}

.well-done-smiley {
  margin: 0 0 0.5rem;
  font-size: clamp(4rem, 12vw, 6rem);
  line-height: 1;
  color: var(--accent);
}

.well-done-hero .button {
  margin-top: 0.5rem;
}

.construction-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
}

.construction-main {
  width: min(520px, 100%);
}

.construction-card {
  padding: clamp(1.75rem, 4vw, 2.5rem);
  text-align: center;
  background: var(--hero-bg);
  border: 1px solid var(--border);
  border-radius: 20px;
  box-shadow: var(--shadow);
}

.construction-logo {
  width: 72px;
  height: 72px;
  margin: 0 auto 1rem;
  border-radius: 16px;
}

.construction-badge {
  display: inline-block;
  margin: 0 0 0.85rem;
  padding: 0.35rem 0.75rem;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent-text);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.construction-card h1 {
  margin: 0 0 0.75rem;
  font-size: clamp(1.5rem, 4vw, 2rem);
}

.construction-text {
  margin: 0;
  color: var(--muted);
  line-height: 1.6;
}

.construction-code-btn {
  margin-top: 1.25rem;
}

.construction-theme {
  margin-top: 1.35rem;
}

.site-toolbar {
  position: fixed;
  top: clamp(0.75rem, 2vw, 1.25rem);
  right: clamp(0.75rem, 2vw, 1.25rem);
  z-index: 60;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.toolbar-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 42px;
  height: 42px;
  padding: 0 0.85rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--surface-elevated);
  color: var(--text);
  font: inherit;
  font-size: 0.85rem;
  font-weight: 700;
  cursor: pointer;
  box-shadow: var(--shadow-soft);
  transition: background-color 0.2s ease, border-color 0.2s ease, transform 0.15s ease;
}

.toolbar-btn:hover {
  background: var(--accent-soft);
  border-color: var(--accent);
  transform: translateY(-1px);
}

.toolbar-btn:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

@media (max-width: 768px) {
  body {
    background-attachment: scroll;
  }

  .keypad-body {
    grid-template-columns: 1fr;
  }

  .keypad-clue {
    order: -1;
  }
}

@media (max-width: 640px) {
  .nav-inner {
    flex-wrap: wrap;
  }

  .nav-brand {
    margin-right: 0;
    flex: 1;
    min-width: 0;
  }

  .nav-toggle {
    display: inline-flex;
  }

  .nav-menu {
    display: none;
    flex-direction: column;
    align-items: stretch;
    flex-basis: 100%;
    width: 100%;
    padding-top: 0.75rem;
    margin-top: 0.5rem;
    border-top: 1px solid var(--border);
    gap: 0.25rem;
  }

  .nav-menu.is-open {
    display: flex;
  }

  .nav-menu li {
    width: 100%;
  }

  .nav-menu a {
    width: 100%;
  }

  .theme-toggle {
    order: 2;
  }
}