:root {
  color-scheme: dark;
  font-family: "Manrope", "Segoe UI", sans-serif;
  --font-display: "Fraunces", "Georgia", serif;
  --radius-xl: 28px;
  --radius-lg: 20px;
  --radius-md: 14px;
  --shadow-soft: 0 24px 60px rgba(0, 0, 0, 0.25);
  --shadow-subtle: 0 8px 24px rgba(0, 0, 0, 0.2);
  --transition: 220ms cubic-bezier(0.4, 0, 0.2, 1);
  --panel-gap: clamp(18px, 3vw, 28px);
}

html[data-theme="dark"] {
  color-scheme: dark;
  --bg: #0b0c10;
  --bg-soft: #12141a;
  --surface: #171a22;
  --surface-strong: #1f232e;
  --border: rgba(255, 255, 255, 0.08);
  --text: #f5f7fb;
  --text-soft: #aeb4c2;
  --accent: #ffb347;
  --accent-strong: #ff8a3d;
  --glow: rgba(255, 179, 71, 0.12);
}

html[data-theme="light"] {
  color-scheme: light;
  --bg: #f3f4f6;
  --bg-soft: #ffffff;
  --surface: #ffffff;
  --surface-strong: #edf0f5;
  --border: rgba(12, 17, 25, 0.1);
  --text: #0e1117;
  --text-soft: #58606b;
  --accent: #ffb347;
  --accent-strong: #ff8a3d;
  --glow: rgba(255, 179, 71, 0.18);
  --shadow-soft: 0 24px 60px rgba(16, 24, 40, 0.12);
  --shadow-subtle: 0 12px 24px rgba(16, 24, 40, 0.08);
}

html[data-theme="oled"] {
  color-scheme: dark;
  --bg: #000000;
  --bg-soft: #040404;
  --surface: #0a0a0a;
  --surface-strong: #111111;
  --border: rgba(255, 255, 255, 0.14);
  --text: #f5f7fa;
  --text-soft: #9aa0a8;
  --accent: #ffb347;
  --accent-strong: #ff8a3d;
  --glow: rgba(0, 0, 0, 0);
  --shadow-soft: 0 20px 50px rgba(0, 0, 0, 0.7);
  --shadow-subtle: 0 10px 24px rgba(0, 0, 0, 0.6);
}

html[data-theme="oled"] .orb {
  display: none;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  min-height: 100vh;
  background:
    radial-gradient(circle at 18% 8%, var(--glow), transparent 42%), var(--bg);
  color: var(--text);
  line-height: 1.6;
  padding: clamp(18px, 3vw, 36px);
  display: flex;
  flex-direction: column;
  gap: clamp(22px, 3vw, 30px);
  position: relative;
  overflow-x: hidden;
}

.ambient {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
}

.orb {
  position: absolute;
  width: clamp(180px, 30vw, 360px);
  height: clamp(180px, 30vw, 360px);
  border-radius: 50%;
  filter: blur(40px);
  opacity: 0.55;
  background: radial-gradient(circle, var(--accent) 0%, transparent 65%);
  animation: drift 18s ease-in-out infinite;
}

html[data-theme="dark"] .orb {
  opacity: 0.32;
  filter: blur(52px);
}

.orb-a {
  top: -5%;
  left: -3%;
}

.orb-b {
  bottom: -10%;
  right: 8%;
  animation-delay: -6s;
}

.grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 140px 140px;
  opacity: 0.25;
  mask-image: radial-gradient(circle at 30% 20%, black 0%, transparent 60%);
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  z-index: 1;
}

.brand {
  display: flex;
  align-items: center;
  gap: 16px;
}

.logo {
  width: 52px;
  height: 52px;
  border-radius: 16px;
  background: linear-gradient(
    135deg,
    var(--accent) 0%,
    var(--accent-strong) 100%
  );
  color: #0b0d12;
  font-weight: 700;
  display: grid;
  place-items: center;
  box-shadow: var(--shadow-subtle);
}

.eyebrow {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.24em;
  color: var(--text-soft);
  margin-bottom: 6px;
}

h1 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3vw, 2.8rem);
  letter-spacing: -0.02em;
}

.controls {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
  justify-content: flex-end;
  margin-left: auto;
}

.theme-cycle {
  display: none;
}

.pill {
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  padding: 10px 18px;
  font-weight: 600;
  letter-spacing: 0.01em;
  cursor: pointer;
  transition:
    transform var(--transition),
    box-shadow var(--transition),
    border var(--transition);
}

.pill:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-subtle);
}

.theme-toggle {
  display: inline-flex;
  background: var(--surface);
  border-radius: 999px;
  border: 1px solid var(--border);
  overflow: hidden;
}

.theme-btn {
  border: none;
  background: transparent;
  color: var(--text-soft);
  padding: 10px 16px;
  font-weight: 600;
  cursor: pointer;
  transition:
    background var(--transition),
    color var(--transition);
}

.theme-btn.active {
  background: var(--surface-strong);
  color: var(--text);
}

.layout {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--panel-gap);
  z-index: 1;
}

.panel {
  background: var(--bg-soft);
  border-radius: var(--radius-xl);
  padding: clamp(18px, 3vw, 26px);
  box-shadow: var(--shadow-soft);
  border: 1px solid var(--border);
  backdrop-filter: blur(14px);
}

.panel-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 16px;
}

h2 {
  font-family: var(--font-display);
  font-size: clamp(1.2rem, 2vw, 1.6rem);
}

.meta {
  font-size: 0.85rem;
  color: var(--text-soft);
}

.feed {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.sentinel {
  height: 1px;
}

.card {
  background: var(--surface);
  border-radius: var(--radius-lg);
  padding: 16px;
  border: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 12px;
  text-decoration: none;
  color: inherit;
  transition:
    transform var(--transition),
    box-shadow var(--transition),
    border var(--transition);
  animation: rise 520ms ease forwards;
  opacity: 0;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-subtle);
  border-color: var(--accent);
}

.card:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.card-body {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.card-source {
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-soft);
}

.card-title {
  font-size: 1.05rem;
  font-weight: 600;
  line-height: 1.4;
}

.card-subtitle {
  font-size: 0.9rem;
  color: var(--text-soft);
}

.card-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.pill.soft {
  background: var(--surface-strong);
  color: var(--text-soft);
  border: none;
  padding: 6px 12px;
  font-size: 0.78rem;
}

.footer {
  z-index: 1;
  color: var(--text-soft);
  text-align: center;
  font-size: 0.85rem;
}

@keyframes drift {
  0%,
  100% {
    transform: translate3d(0, 0, 0) scale(1);
  }
  50% {
    transform: translate3d(20px, -12px, 0) scale(1.05);
  }
}

@keyframes rise {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 900px) {
  .topbar {
    flex-wrap: nowrap;
    gap: 16px;
  }

  .controls {
    justify-content: flex-end;
  }
}

@media (max-width: 600px) {
  body {
    padding: 16px;
  }

  .theme-btn {
    padding: 8px 12px;
  }

  .theme-toggle {
    display: none;
  }

  .theme-cycle {
    display: inline-flex;
  }
}