/* === 17-broadcast/styles.css ===
 * Live TV broadcast — media (editorial-typographic)
 */

/* --- Reset --- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
body { line-height: 1.5; -webkit-font-smoothing: antialiased; }
img, picture, video, canvas, svg { display: block; max-width: 100%; }
a { text-decoration-skip-ink: auto; color: inherit; }
:focus-visible { outline: 2px solid var(--color-live); outline-offset: 2px; }

/* --- Fluid Scales --- */
:root {
  --step--2: clamp(0.69rem, 0.66rem + 0.18vw, 0.80rem);
  --step--1: clamp(0.83rem, 0.78rem + 0.25vw, 1.00rem);
  --step-0:  clamp(1.00rem, 0.93rem + 0.33vw, 1.13rem);
  --step-1:  clamp(1.20rem, 1.10rem + 0.45vw, 1.41rem);
  --step-2:  clamp(1.44rem, 1.30rem + 0.63vw, 1.76rem);
  --step-3:  clamp(1.73rem, 1.54rem + 0.88vw, 2.20rem);
  --step-4:  clamp(2.07rem, 1.81rem + 1.23vw, 2.75rem);
  --step-5:  clamp(2.49rem, 2.13rem + 1.69vw, 3.43rem);

  --space-3xs: clamp(0.25rem, 0.23rem + 0.11vw, 0.31rem);
  --space-2xs: clamp(0.50rem, 0.46rem + 0.22vw, 0.63rem);
  --space-xs:  clamp(0.75rem, 0.69rem + 0.33vw, 0.94rem);
  --space-s:   clamp(1.00rem, 0.93rem + 0.33vw, 1.13rem);
  --space-m:   clamp(1.50rem, 1.39rem + 0.54vw, 1.69rem);
  --space-l:   clamp(2.00rem, 1.85rem + 0.76vw, 2.25rem);
  --space-xl:  clamp(3.00rem, 2.78rem + 1.09vw, 3.38rem);
  --space-2xl: clamp(4.00rem, 3.70rem + 1.52vw, 4.50rem);
}

/* --- Motion --- */
:root {
  --motion-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* --- Media Domain Tokens (dark broadcast) --- */
:root {
  --color-bg: oklch(0.12 0.008 60);
  --color-bg-alt: oklch(0.16 0.008 60);
  --color-bg-panel: oklch(0.10 0.01 60 / 0.90);
  --color-text: oklch(0.88 0.005 70);
  --color-text-dim: oklch(0.62 0.006 60);
  --color-heading: oklch(0.93 0.003 70);
  --color-live: oklch(0.60 0.25 25);
  --color-accent: oklch(0.65 0.18 25);
  --color-border: oklch(0.28 0.008 60);

  --font-heading: 'Playfair Display', 'Georgia', serif;
  --font-body: 'Source Serif 4', 'Charter', serif;
  --font-mono: 'Fira Code', monospace;
  --font-sans: 'DM Sans', system-ui, sans-serif;
}

/* --- Page --- */
body {
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: var(--step-0);
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
}

body::after {
  content: '';
  position: fixed;
  inset: 0;
  background-image: url('assets/noise-subtle.svg');
  background-size: 200px 200px;
  opacity: 0.03;
  pointer-events: none;
  z-index: 100;
}

/* --- Top Bar (Channel Bug + LIVE) --- */
.top-bar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-xs) var(--space-m);
  z-index: 50;
  background: linear-gradient(to bottom, oklch(0.08 0.01 60 / 0.8), transparent);
}

.channel-bug {
  font-family: var(--font-heading);
  font-size: var(--step-1);
  font-weight: 700;
  color: var(--color-heading);
  letter-spacing: -0.015em;
}

.live-badge {
  display: flex;
  align-items: center;
  gap: var(--space-2xs);
  font-family: var(--font-mono);
  font-size: var(--step--2);
  color: var(--color-live);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-weight: 700;
}

.live-dot {
  width: 8px;
  height: 8px;
  background: var(--color-live);
  border-radius: 50%;
  animation: pulse 1.5s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

/* --- Main Content Area --- */
.broadcast-content {
  padding-top: var(--space-3xl);
  min-height: 100vh;
}

/* --- Featured Story (Hero) --- */
.featured {
  padding: var(--space-2xl) var(--space-l);
  position: relative;
}

.featured-label {
  font-family: var(--font-mono);
  font-size: var(--step--2);
  color: var(--color-live);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  margin-bottom: var(--space-xs);
}

.featured-headline {
  font-family: var(--font-heading);
  font-size: var(--step-5);
  font-weight: 700;
  color: var(--color-heading);
  line-height: 1.1;
  letter-spacing: -0.015em;
  margin-bottom: var(--space-m);
}

.featured-body {
  font-family: var(--font-body);
  font-size: var(--step-1);
  line-height: 1.6;
  color: var(--color-text);
  max-width: 650px;
}

/* --- Lower Third --- */
.lower-third {
  background: var(--color-bg-panel);
  border-left: 4px solid var(--color-live);
  padding: var(--space-s) var(--space-m);
  margin: var(--space-l) var(--space-l) 0;
  backdrop-filter: blur(8px);
}

.lower-name {
  font-family: var(--font-heading);
  font-size: var(--step-2);
  font-weight: 700;
  color: var(--color-heading);
}

.lower-title {
  font-family: var(--font-mono);
  font-size: var(--step--1);
  color: var(--color-accent);
}

/* --- Segments (Projects) --- */
.segments {
  padding: var(--space-xl) var(--space-l);
}

.segment-header {
  font-family: var(--font-mono);
  font-size: var(--step--2);
  color: var(--color-text-dim);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  margin-bottom: var(--space-m);
  border-bottom: 1px solid var(--color-border);
  padding-bottom: var(--space-2xs);
}

.segment-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-s);
}

.segment-card {
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: 4px;
  padding: var(--space-s) var(--space-m);
  transition: border-color var(--motion-fast);
}

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

.segment-time {
  font-family: var(--font-mono);
  font-size: var(--step--2);
  color: var(--color-text-dim);
  margin-bottom: var(--space-3xs);
}

.segment-title {
  font-family: var(--font-heading);
  font-size: var(--step-1);
  font-weight: 700;
  color: var(--color-heading);
  margin-bottom: var(--space-3xs);
}

.segment-body {
  font-size: var(--step--1);
  color: var(--color-text-dim);
  line-height: 1.5;
}

.segment-stack {
  font-family: var(--font-mono);
  font-size: var(--step--2);
  color: var(--color-accent);
  margin-top: var(--space-xs);
}

/* --- Sidebar Panel (Experience) --- */
.sidebar-panel {
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: 4px;
  padding: var(--space-m);
  margin: var(--space-l) var(--space-l) 0;
}

.panel-title {
  font-family: var(--font-mono);
  font-size: var(--step--2);
  color: var(--color-text-dim);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  margin-bottom: var(--space-s);
}

.panel-item {
  padding: var(--space-xs) 0;
  border-bottom: 1px solid var(--color-border);
}

.panel-item:last-child { border-bottom: none; }

.panel-item-title {
  font-weight: 700;
  color: var(--color-heading);
  font-size: var(--step--1);
}

.panel-item-detail {
  font-size: var(--step--2);
  color: var(--color-text-dim);
  margin-top: 2px;
}

/* --- News Ticker --- */
.ticker {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--color-live);
  color: white;
  font-family: var(--font-mono);
  font-size: var(--step--1);
  font-weight: 700;
  padding: var(--space-2xs) 0;
  overflow: hidden;
  white-space: nowrap;
  z-index: 50;
}

.ticker-scroll {
  display: inline-block;
  animation: ticker-move 40s linear infinite;
}

@keyframes ticker-move {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

.ticker-sep {
  display: inline-block;
  margin: 0 var(--space-m);
  opacity: 0.5;
}

/* --- Contact --- */
.contact-strip {
  padding: var(--space-l);
  margin-bottom: var(--space-2xl);
  display: flex;
  gap: var(--space-l);
  flex-wrap: wrap;
}

.contact-strip a {
  font-family: var(--font-mono);
  font-size: var(--step--1);
  color: var(--color-accent);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color var(--motion-fast);
}

.contact-strip a:hover {
  border-bottom-color: var(--color-accent);
}

/* --- Mobile --- */
@media (max-width: 640px) {
  .featured { padding: var(--space-xl) var(--space-s); }
  .segments { padding: var(--space-m) var(--space-s); }
  .segment-grid { grid-template-columns: 1fr; }
  .lower-third { margin: var(--space-m) var(--space-s) 0; }
  .sidebar-panel { margin: var(--space-m) var(--space-s) 0; }
  .contact-strip { padding: var(--space-s); flex-direction: column; }
}