/* ============================================
   Cris Balli — Personal Site
   Typography-first, dark-mode default
   ============================================ */

/* --- Theme Variables --- */
:root,
[data-theme="dark"] {
  --bg:          #0a0a0a;
  --bg-elevated: #111111;
  --bg-card:     #141414;
  --bg-card-h:   #1a1a1a;
  --text:        #e8e8e8;
  --text-dim:    #999;
  --text-muted:  #666;
  --accent:      #c8a55a;
  --accent-dim:  rgba(200, 165, 90, 0.12);
  --accent-text: #c8a55a;
  --border:      #222;
  --border-card: #1e1e1e;
  --modal-bg:    #111;
  --badge-active-bg:  rgba(76, 175, 80, 0.12);
  --badge-active-fg:  #81c784;
  --badge-early-bg:   rgba(200, 165, 90, 0.12);
  --badge-early-fg:   #c8a55a;
  --badge-planned-bg: rgba(150, 150, 150, 0.10);
  --badge-planned-fg: #888;
  --badge-live-bg:    rgba(33, 150, 243, 0.12);
  --badge-live-fg:    #64b5f6;
}

[data-theme="light"] {
  --bg:          #f5f2ed;
  --bg-elevated: #ebe7e0;
  --bg-card:     #ffffff;
  --bg-card-h:   #faf8f5;
  --text:        #1a1a1a;
  --text-dim:    #555;
  --text-muted:  #888;
  --accent:      #8b6914;
  --accent-dim:  rgba(139, 105, 20, 0.08);
  --accent-text: #7a5c10;
  --border:      #d8d3cb;
  --border-card: #e0dbd3;
  --modal-bg:    #fff;
  --badge-active-bg:  rgba(56, 142, 60, 0.10);
  --badge-active-fg:  #2e7d32;
  --badge-early-bg:   rgba(139, 105, 20, 0.10);
  --badge-early-fg:   #8b6914;
  --badge-planned-bg: rgba(100, 100, 100, 0.08);
  --badge-planned-fg: #999;
  --badge-live-bg:    rgba(25, 118, 210, 0.10);
  --badge-live-fg:    #1976d2;
}

/* --- Fonts --- */
:root {
  --f-display: 'Playfair Display', Georgia, serif;
  --f-body:    'Source Serif 4', 'Source Serif Pro', Georgia, serif;
  --f-mono:    'JetBrains Mono', 'Fira Code', 'Consolas', monospace;
}

/* --- Reset --- */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 5rem; }

body {
  font-family: var(--f-body);
  font-size: 1rem;
  line-height: 1.7;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  transition: background 0.3s, color 0.3s;
}

a {
  color: var(--accent-text);
  text-decoration: none;
  transition: opacity 0.2s;
}
a:hover { opacity: 0.8; }

img { max-width: 100%; display: block; }

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

/* --- Layout --- */
.container {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

section {
  padding: 5rem 0;
  border-bottom: 1px solid var(--border);
}

section:last-of-type { border-bottom: none; }

h2 {
  font-family: var(--f-display);
  font-size: 2.25rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  letter-spacing: -0.01em;
}

.section-sub {
  color: var(--text-dim);
  font-size: 1.05rem;
  margin-bottom: 2.5rem;
}

/* --- Navigation --- */
#nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  transition: background 0.3s;
}

.nav-inner {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 3.5rem;
}

.nav-name {
  font-family: var(--f-display);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text);
  letter-spacing: 0.01em;
}
.nav-name:hover { opacity: 1; color: var(--accent-text); }

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.75rem;
}

.nav-links a {
  font-family: var(--f-mono);
  font-size: 0.8rem;
  font-weight: 400;
  color: var(--text-dim);
  letter-spacing: 0.03em;
  text-transform: lowercase;
}
.nav-links a:hover,
.nav-links a.active { color: var(--accent-text); opacity: 1; }

.nav-sep {
  width: 1px;
  height: 1rem;
  background: var(--border);
}

/* Hamburger */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.25rem;
  flex-direction: column;
  gap: 5px;
}
.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text);
  transition: transform 0.3s, opacity 0.3s;
}
.nav-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}
.nav-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Theme toggle */
.theme-toggle {
  background: none;
  border: 1px solid var(--border);
  border-radius: 6px;
  cursor: pointer;
  color: var(--text-dim);
  padding: 0.35rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: color 0.2s, border-color 0.2s;
}
.theme-toggle:hover { color: var(--accent-text); border-color: var(--accent); }

[data-theme="dark"] .icon-sun  { display: block; }
[data-theme="dark"] .icon-moon { display: none; }
[data-theme="light"] .icon-sun  { display: none; }
[data-theme="light"] .icon-moon { display: block; }

/* --- Hero --- */
#hero {
  padding-top: 8rem;
  padding-bottom: 4rem;
  border-bottom: 1px solid var(--border);
}

#hero h1 {
  font-family: var(--f-display);
  font-size: clamp(3rem, 8vw, 5rem);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin-bottom: 0.75rem;
}

.hero-sub {
  font-family: var(--f-mono);
  font-size: 0.9rem;
  color: var(--text-dim);
  letter-spacing: 0.02em;
  margin-bottom: 1.75rem;
}

.hero-links {
  display: flex;
  gap: 1.5rem;
}
.hero-links a {
  font-family: var(--f-mono);
  font-size: 0.8rem;
  color: var(--text-muted);
  border-bottom: 1px solid transparent;
  padding-bottom: 1px;
}
.hero-links a:hover {
  color: var(--accent-text);
  border-bottom-color: var(--accent);
  opacity: 1;
}

/* --- Card Grid (shared) --- */
.card-grid {
  display: grid;
  gap: 1.25rem;
}

.writing-grid {
  grid-template-columns: repeat(2, 1fr);
}

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

/* --- Writing Cards --- */
.writing-card {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: 8px;
  padding: 1.5rem;
  transition: background 0.2s, border-color 0.2s;
  display: flex;
  flex-direction: column;
}
.writing-card:hover {
  background: var(--bg-card-h);
  border-color: var(--border);
}

.writing-card .card-date {
  font-family: var(--f-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
  letter-spacing: 0.02em;
}

.writing-card .card-title {
  font-family: var(--f-display);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 0.6rem;
  line-height: 1.35;
}

.writing-card .card-excerpt {
  font-size: 0.9rem;
  color: var(--text-dim);
  line-height: 1.6;
  flex: 1;
  margin-bottom: 1rem;
}

.writing-card .card-link {
  font-family: var(--f-mono);
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--accent-text);
  align-self: flex-start;
}

/* --- Lab Cards --- */
.lab-card {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: 8px;
  padding: 1.5rem;
  cursor: pointer;
  transition: background 0.2s, border-color 0.2s;
  display: flex;
  flex-direction: column;
}
.lab-card:hover {
  background: var(--bg-card-h);
  border-color: var(--border);
}

.lab-card-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
}

.lab-card .card-name {
  font-family: var(--f-display);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text);
  line-height: 1.3;
}

.lab-card .card-subtitle {
  font-family: var(--f-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 0.15rem;
}

/* Status badges */
.badge {
  font-family: var(--f-mono);
  font-size: 0.65rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  padding: 0.2rem 0.6rem;
  border-radius: 4px;
  white-space: nowrap;
  flex-shrink: 0;
}
.badge-active  { background: var(--badge-active-bg);  color: var(--badge-active-fg); }
.badge-early   { background: var(--badge-early-bg);   color: var(--badge-early-fg); }
.badge-planned { background: var(--badge-planned-bg); color: var(--badge-planned-fg); }
.badge-live    { background: var(--badge-live-bg);    color: var(--badge-live-fg); }

.lab-card .card-question {
  font-size: 0.92rem;
  color: var(--text-dim);
  line-height: 1.55;
  font-style: italic;
  flex: 1;
  margin-bottom: 1rem;
}

.lab-card .card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.tag {
  font-family: var(--f-mono);
  font-size: 0.68rem;
  color: var(--text-muted);
  background: var(--accent-dim);
  padding: 0.15rem 0.55rem;
  border-radius: 3px;
  letter-spacing: 0.02em;
}

/* Planned projects - muted */
.lab-card.planned {
  opacity: 0.5;
  cursor: default;
}
.lab-card.planned:hover {
  background: var(--bg-card);
  border-color: var(--border-card);
  opacity: 0.55;
}

.lab-card .card-expand-hint {
  font-family: var(--f-mono);
  font-size: 0.7rem;
  color: var(--text-muted);
  margin-top: 0.75rem;
  opacity: 0;
  transition: opacity 0.2s;
}
.lab-card:not(.planned):hover .card-expand-hint {
  opacity: 1;
}

/* --- Modal --- */
.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 200;
  background: rgba(0, 0, 0, 0.7);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.25s, visibility 0.25s;
}
.modal-overlay.open {
  opacity: 1;
  visibility: visible;
}

.modal {
  background: var(--modal-bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  max-width: 680px;
  width: 100%;
  max-height: 80vh;
  overflow-y: auto;
  padding: 2.5rem;
  position: relative;
  transform: translateY(20px);
  transition: transform 0.25s;
}
.modal-overlay.open .modal {
  transform: translateY(0);
}

.modal-close {
  position: absolute;
  top: 1rem;
  right: 1.25rem;
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 1.75rem;
  cursor: pointer;
  line-height: 1;
  padding: 0.25rem;
  transition: color 0.2s;
}
.modal-close:hover { color: var(--text); }

.modal h3 {
  font-family: var(--f-display);
  font-size: 1.75rem;
  font-weight: 700;
  margin-bottom: 0.25rem;
}

.modal .modal-subtitle {
  font-family: var(--f-mono);
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 1.5rem;
}

.modal .modal-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
}

.modal-section {
  margin-bottom: 1.75rem;
}

.modal-section h4 {
  font-family: var(--f-mono);
  font-size: 0.8rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent-text);
  margin-bottom: 0.6rem;
}

.modal-section p,
.modal-section ul {
  font-size: 0.92rem;
  color: var(--text-dim);
  line-height: 1.7;
}

.modal-section ul {
  padding-left: 1.25rem;
}
.modal-section li {
  margin-bottom: 0.3rem;
}

.modal-section code {
  font-family: var(--f-mono);
  font-size: 0.82rem;
  background: var(--accent-dim);
  padding: 0.1rem 0.4rem;
  border-radius: 3px;
}

.modal-links {
  display: flex;
  gap: 1rem;
  margin-top: 1.5rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--border);
}
.modal-links a {
  font-family: var(--f-mono);
  font-size: 0.8rem;
}

/* --- About --- */
.about-content p {
  font-size: 1.05rem;
  line-height: 1.8;
  max-width: 640px;
  margin-bottom: 1.5rem;
}

.about-links {
  display: flex;
  gap: 1.5rem;
}
.about-link {
  font-family: var(--f-mono);
  font-size: 0.85rem;
  color: var(--text-dim);
  border-bottom: 1px solid var(--border);
  padding-bottom: 2px;
}
.about-link:hover {
  color: var(--accent-text);
  border-bottom-color: var(--accent);
  opacity: 1;
}

/* --- Contact --- */
#contact {
  padding-bottom: 3rem;
}

.contact-links {
  display: flex;
  gap: 2rem;
}
.contact-links a {
  font-family: var(--f-mono);
  font-size: 0.9rem;
  color: var(--text-dim);
}
.contact-links a:hover { color: var(--accent-text); opacity: 1; }

/* --- Footer --- */
footer {
  padding: 3rem 0;
  border-top: 1px solid var(--border);
}

.footer-quote {
  font-size: 0.9rem;
  color: var(--text-muted);
  text-align: center;
  max-width: 600px;
  margin: 0 auto;
  line-height: 1.7;
}

/* --- Responsive --- */
@media (max-width: 768px) {
  .nav-toggle {
    display: flex;
  }

  .nav-links {
    position: absolute;
    top: 3.5rem;
    left: 0;
    right: 0;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    flex-direction: column;
    align-items: flex-start;
    padding: 1rem 1.5rem 1.25rem;
    gap: 0.75rem;
    display: none;
  }
  .nav-links.open { display: flex; }

  .nav-sep { display: none; }

  .theme-toggle { align-self: flex-start; }

  #hero { padding-top: 6rem; padding-bottom: 3rem; }
  #hero h1 { font-size: clamp(2.25rem, 10vw, 3.5rem); }

  section { padding: 3.5rem 0; }
  h2 { font-size: 1.75rem; }

  .writing-grid {
    grid-template-columns: 1fr;
  }

  .lab-grid {
    grid-template-columns: 1fr;
  }

  .about-links { flex-direction: column; gap: 0.75rem; }

  .contact-links {
    flex-direction: column;
    gap: 0.75rem;
  }

  .modal { padding: 1.75rem; }
  .modal h3 { font-size: 1.4rem; }
}

@media (max-width: 480px) {
  .hero-links { flex-direction: column; gap: 0.5rem; }
  .writing-card { padding: 1.25rem; }
  .lab-card { padding: 1.25rem; }
}

/* --- Music Section --- */
.playlist-tabs {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
  flex-wrap: wrap;
}

.playlist-tab {
  font-family: var(--f-mono);
  font-size: 0.78rem;
  color: var(--text-muted);
  background: none;
  border: 1px solid var(--border-card);
  border-radius: 4px;
  padding: 0.35rem 0.85rem;
  cursor: pointer;
  transition: color 0.2s, border-color 0.2s, background 0.2s;
  letter-spacing: 0.02em;
}
.playlist-tab:hover {
  color: var(--text-dim);
  border-color: var(--border);
}
.playlist-tab.active {
  color: var(--accent-text);
  border-color: var(--accent);
  background: var(--accent-dim);
}

.playlist-desc {
  font-family: var(--f-body);
  font-size: 0.92rem;
  color: var(--text-dim);
  font-style: italic;
  margin-bottom: 1.5rem;
}

.track-list {
  display: flex;
  flex-direction: column;
}

.track-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 1rem 0.5rem;
  border-bottom: 1px solid var(--border-card);
  cursor: pointer;
  transition: background 0.2s;
  border-radius: 4px;
}
.track-item:last-child {
  border-bottom: none;
}
.track-item:hover {
  background: var(--bg-card);
}
.track-item.playing {
  background: var(--accent-dim);
}
.track-item.playing .track-title {
  color: var(--accent-text);
}
.track-item.playing .track-number {
  color: var(--accent-text);
}

.track-number {
  font-family: var(--f-mono);
  font-size: 0.8rem;
  color: var(--text-muted);
  width: 1.5rem;
  flex-shrink: 0;
  padding-top: 0.15rem;
  text-align: right;
}

.track-info {
  flex: 1;
  min-width: 0;
}

.track-title {
  font-family: var(--f-display);
  font-size: 1rem;
  font-weight: 700;
  color: var(--text);
  display: block;
  line-height: 1.3;
}

.track-artist {
  font-family: var(--f-mono);
  font-size: 0.8rem;
  color: var(--text-dim);
  display: block;
  margin-top: 0.1rem;
}

.track-note {
  font-family: var(--f-body);
  font-size: 0.85rem;
  color: var(--text-muted);
  font-style: italic;
  display: block;
  margin-top: 0.35rem;
  line-height: 1.5;
}

.track-source {
  flex-shrink: 0;
  color: var(--text-muted);
  padding: 0.25rem;
  display: flex;
  align-items: center;
  margin-top: 0.1rem;
}
.track-source:hover {
  color: var(--accent-text);
  opacity: 1;
}

/* --- Mini Player --- */
.mini-player {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 150;
  background: var(--bg-elevated);
  border-top: 1px solid var(--border);
  transform: translateY(100%);
  transition: transform 0.3s ease;
}
.mini-player.active {
  transform: translateY(0);
}

.mini-player-inner {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 1.5rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  height: 80px;
}

.mini-player-embed {
  flex-shrink: 0;
  width: 300px;
  height: 80px;
  overflow: hidden;
}
.mini-player-embed iframe {
  border-radius: 8px;
}

.mini-player-external {
  font-family: var(--f-mono);
  font-size: 0.8rem;
  color: var(--accent-text);
  display: flex;
  align-items: center;
  height: 100%;
}

.mini-player-info {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 0.1rem;
}

.mini-player-title {
  font-family: var(--f-display);
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.mini-player-artist {
  font-family: var(--f-mono);
  font-size: 0.72rem;
  color: var(--text-dim);
}

.mini-player-note {
  font-family: var(--f-body);
  font-size: 0.75rem;
  color: var(--text-muted);
  font-style: italic;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.mini-player-controls {
  display: flex;
  gap: 0.5rem;
  flex-shrink: 0;
}

.mini-player-controls button {
  background: none;
  border: 1px solid var(--border);
  border-radius: 6px;
  cursor: pointer;
  color: var(--text-dim);
  padding: 0.4rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: color 0.2s, border-color 0.2s;
}
.mini-player-controls button:hover {
  color: var(--accent-text);
  border-color: var(--accent);
}

body.mini-player-open {
  padding-bottom: 90px;
}

/* --- Music Responsive --- */
@media (max-width: 768px) {
  .mini-player-inner {
    height: auto;
    padding: 0.5rem 1rem;
    gap: 0.5rem;
  }
  .mini-player-embed {
    width: calc(100% - 6.5rem);
  }
  .mini-player-info {
    display: none;
  }
  .mini-player-controls {
    flex-direction: column;
    gap: 0.25rem;
  }
  .mini-player-controls button {
    padding: 0.3rem;
  }

  .track-item {
    gap: 0.75rem;
    padding: 0.75rem 0.25rem;
  }
  .track-note {
    font-size: 0.8rem;
  }
}

@media (max-width: 480px) {
  .playlist-tabs {
    gap: 0.35rem;
  }
  .playlist-tab {
    font-size: 0.72rem;
    padding: 0.3rem 0.65rem;
  }
  .track-source {
    display: none;
  }
}

/* --- Scrollbar (subtle) --- */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }