:root {
  --bg: #0d0d0d;
  --panel: #0f0f10;
  --text: #e0e0e0;
  --muted: rgba(255, 255, 255, 0.08);
  --accent: #00ff9f;
  --accent-2: #f5c542;
  --glass: rgba(255, 255, 255, 0.04);
  --radius: 10px;
  --shadow-1: 0 8px 30px rgba(0, 0, 0, 0.6);
  --ease: cubic-bezier(0.2, 0.9, 0.3, 1);
  --space: 1rem;
  --transition: 220ms var(--ease);
}

body.light-mode {
  --bg: var(--beige-bg, #f6ecd9);
  --panel: #fbf7ef;
  --text: var(--beige-text, #222);
  --muted: rgba(0, 0, 0, 0.06);
  --accent: var(--accent-yellow, #f5c542);
  --accent-2: #00a3ff;
  --glass: rgba(0, 0, 0, 0.03);
  --shadow-1: 0 8px 30px rgba(0, 0, 0, 0.08);
}

body {
  background: var(--bg);
  color: var(--text);
  transition:
    background var(--transition),
    color var(--transition);
}

.btn-visualizer,
.btn {
  background: linear-gradient(
    180deg,
    var(--accent) 0%,
    color-mix(in srgb, var(--accent) 10%, black 10%) 100%
  );
  color: #071010;
  transition:
    transform var(--transition),
    filter var(--transition),
    background var(--transition);
}
.terminal-card {
  background-color: var(--panel);
  border: 1px solid rgba(255, 255, 255, 0.04);
  box-shadow: var(--shadow-1);
}
.projects-section h2 {
  color: var(--accent);
}

:root {
  --bg-dark: #0d0d0d;
  --text-dark: #e0e0e0;
  --accent-green: #00ff9f;
  --accent-yellow: #f5c542;
  --beige-bg: #f6ecd9;
  --beige-text: #222;
}

body {
  background-color: var(--bg-dark);
  color: var(--text-dark);
  font-family: "Courier New", monospace;
  margin: 0;
  padding: 0;
}

/* Header and layout */
header {
  position: relative;
  text-align: center;
  padding: 0.1rem;
  margin-bottom: 0.5rem;
  margin-top: 2rem;
}

/* Terminal card */
.terminal-card {
  background-color: #111;
  border: 1px solid #333;
  border-radius: 3px;
  width: 75%;
  height: 40%;
  margin: 2rem auto;
  padding: 1rem;
  box-shadow: 0 0 10px #000;
}

.terminal-header {
  background-color: #333;
  padding: 0.5rem;
  display: flex;
  gap: 8px;
}

.dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  display: inline-block;
}
.red {
  background: #ff5f56;
}
.yellow {
  background: #ffbd2e;
}
.green {
  background: #27c93f;
}

.terminal-body {
  padding: 1rem;
  font-size: 1rem;
}

.cursor {
  display: inline-block;
  width: 10px;
  height: 1.2rem;
  background: var(--text-dark);
  margin-left: 4px;
  animation: blink 1s steps(1, start) infinite;
}
@keyframes blink {
  50% {
    opacity: 0;
  }
}

/* Sections and nav */
section,
.page-section,
#writeups {
  width: 70%;
  margin: 2rem auto;
  padding: 1rem;
  border-left: 2px solid #333;
}
.hidden {
  display: none;
}

a {
  color: var(--accent-green);
  text-decoration: none;
}
a:hover {
  text-decoration: underline;
}

.writeup-heading {
  margin: 1rem 0;
  cursor: pointer;
  color: var(--accent-green);
  display: block;
}
.writeup-heading:hover {
  text-decoration: underline;
}

/* Title font */
@font-face {
  font-family: "Chithira";
  src:
    url("../fonts/chithira.ttf") format("truetype"),
    url("../fonts/chithira.woff") format("woff"),
    url("../fonts/chithira.woff2") format("woff2");
}
h1 {
  margin: 0;
  font-size: 12vw;
  font-weight: bold;
  font-family: "Chithira", sans-serif;
}

/* Nav menu */
.nav-menu {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  justify-content: center;
  gap: 1rem;
}
.nav-menu li a {
  color: var(--accent-green);
  font-weight: bold;
  font-size: 0.86rem;
  line-height: 0.7;
  transition: color 0.3s ease;
}
.nav-menu li a:hover {
  color: #9aa0a6;
  text-decoration: underline;
}
.nav-menu li a.active {
  text-decoration: underline;
  color: #bfc7cc;
}

/* Home button */
.home-button {
  position: absolute;
  top: 1.1rem;
  left: 1.4rem;
  color: var(--accent-green);
  font-weight: bold;
  text-decoration: none;
  transition: color 0.3s ease;
}
.home-button:hover {
  color: #9aa0a6;
}

/* Waveform and visualizer */
#waveform {
  width: 82%;
  margin: 1rem auto;
}
.btn-visualizer {
  display: block;
  margin: 1rem auto;
  padding: 0.5rem 1rem;
  background: var(--accent-green);
  color: #080808;
  font-family: "Courier New", monospace;
  font-weight: bold;
  border: none;
  border-radius: 7px;
  cursor: pointer;
  transition: background 0.3s ease;
}
.btn-visualizer:hover {
  background: #9aa0a6;
  color: #000;
}

/* Theme toggle */
.theme-toggle {
  position: absolute;
  top: 1.11rem;
  right: 1.4rem;
  background: none;
  border: none;
  cursor: pointer;
  font-size: 1rem;
  color: var(--accent-green);
  transition: color 0.3s ease;
}
.theme-toggle:hover {
  color: #9aa0a6;
}
.theme-toggle .fas {
  color: inherit;
}

/* Light mode overrides (warm beige) */
body.light-mode {
  background-color: var(--beige-bg);
  color: var(--beige-text);
  transition:
    background-color 250ms ease,
    color 250ms ease;
}
body.light-mode .terminal-card {
  background-color: #fbf7ef;
  border: 1px solid #ddd;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.08);
}
body.light-mode .terminal-header {
  background-color: #efe7d6;
}
body.light-mode a {
  color: #2e3336;
}
body.light-mode a:hover {
  color: #9aa0a6;
}
body.light-mode .btn-visualizer {
  background: var(--accent-yellow);
  color: #111;
}
body.light-mode .btn-visualizer:hover {
  background: #e0b233;
}

/* Light-mode icon colors */
body.light-mode .theme-toggle {
  color: var(--accent-yellow);
}
body.light-mode .home-button {
  color: var(--accent-yellow);
}

/* Ensure icons inherit color */
.theme-toggle .fas,
.home-button .fas {
  color: inherit;
}

/* Small helpers */
.responsive-img {
  max-width: 100%;
  height: auto;
}
.img-rounded {
  border-radius: 12px;
}

/* Projects grid */
.projects-section {
  width: 75%;
  margin: 2rem auto;
}
.projects-section h2 {
  margin-bottom: 0.75rem;
  color: var(--accent-green);
}

/* grid layout */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
}

/* card */
.project-card {
  display: block;
  text-decoration: none;
  border-radius: 8px;
  overflow: hidden;
  transition:
    transform 180ms ease,
    box-shadow 180ms ease;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(255, 255, 255, 0.04);
  color: inherit;
}
.project-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.45);
}

.project-card-body {
  padding: 1rem;
}
.project-title {
  margin: 0 0 0.5rem 0;
  font-size: 1.05rem;
  color: var(--accent-green);
}
.project-desc {
  margin: 0 0 0.75rem 0;
  color: rgba(255, 255, 255, 0.8);
  font-size: 0.92rem;
  min-height: 2.2rem;
}

/* meta row */
.project-meta {
  display: flex;
  gap: 0.75rem;
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.7);
}
.project-meta .lang {
  background: rgba(255, 255, 255, 0.03);
  padding: 0.15rem 0.5rem;
  border-radius: 999px;
}
.project-meta .stars {
  margin-left: auto;
}

/* Light mode overrides */
body.light-mode .projects-section h2 {
  color: var(--accent-yellow);
}
body.light-mode .project-card {
  background: rgba(0, 0, 0, 0.02);
  border: 1px solid rgba(0, 0, 0, 0.06);
}
body.light-mode .project-title {
  color: var(--accent-yellow);
}
body.light-mode .project-desc {
  color: rgba(0, 0, 0, 0.8);
}
body.light-mode .project-meta {
  color: rgba(0, 0, 0, 0.6);
}

/* Album art component */
:root {
  --album-min-blur: 6px;
  --album-max-blur: 24px;
  --album-scale: 1.03;
  --album-bg-opacity: 0.55;
}

.album-wrap {
  position: relative;
  width: 82%;
  max-width: 980px;
  height: 320px;
  margin: 0.6rem auto 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  border-radius: 10px;
  background: #070707;
}

/* blurred background stretched */
.album-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform-origin: center;
  filter: blur(var(--album-min-blur)) saturate(1.05) contrast(1.02);
  transition:
    filter 160ms linear,
    transform 160ms linear,
    opacity 220ms ease;
  will-change: filter, transform;
  z-index: 0;
  opacity: var(--album-bg-opacity);
}

/* subtle overlay to darken background */
.album-frost {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(0, 0, 0, 0.12), rgba(0, 0, 0, 0.36));
  z-index: 1;
  pointer-events: none;
}

/* foreground cover */
.album-foreground {
  position: relative;
  z-index: 3;
  width: 220px;
  height: 220px;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 12px 36px rgba(0, 0, 0, 0.6);
  transform-origin: center;
  transition: transform 180ms ease;
}

/* sharp album art */
.album-art {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* metadata block */
.album-meta {
  position: absolute;
  right: 1rem;
  bottom: 1rem;
  z-index: 4;
  color: rgba(255, 255, 255, 0.9);
  text-align: right;
  font-family: "Courier New", monospace;
}
.meta-title {
  font-weight: bold;
  font-size: 1rem;
}
.meta-artist {
  font-size: 0.9rem;
  opacity: 0.85;
}
.meta-duration {
  font-size: 0.85rem;
  opacity: 0.75;
}

/* playing state: subtle scale */
.album-wrap.playing .album-foreground {
  transform: scale(var(--album-scale));
}

/* mobile adjustments */
@media (max-width: 600px) {
  .album-wrap {
    height: 220px;
  }
  .album-foreground {
    width: 160px;
    height: 160px;
  }
  .album-meta {
    right: 0.6rem;
    bottom: 0.6rem;
    font-size: 0.85rem;
  }
}