/* ============================================
   RIGO FM — Brand Design Tokens
   "Tune in. Vote up."
   ============================================ */

:root {
  /* === Brand Colors === */
  --color-bg: #0A0A0A;
  --color-bg-elevated: #161616;
  --color-bg-raised: #1F1F1F;
  --color-bg-overlay: rgba(10, 10, 10, 0.92);
  --color-border: #2A2A2A;
  --color-border-bright: #3A3A3A;

  /* Rigo Orange (matches logo wave + tagline) */
  --color-primary: #FF6B1A;
  --color-primary-hover: #FF8540;
  --color-primary-bright: #FFA340;
  --color-primary-glow: rgba(255, 107, 26, 0.45);
  --color-primary-dim: rgba(255, 107, 26, 0.15);

  /* Logo-grey for "RIGO" text accents */
  --color-accent-grey: #4A4A4A;

  /* Text */
  --color-text: #EDEDED;
  --color-text-muted: #8A8A8A;
  --color-text-dim: #5A5A5A;

  /* States */
  --color-success: #4ADE80;
  --color-danger: #FF4757;
  --color-warning: #FFC130;
  --color-up: #4ADE80;
  --color-down: #FF4757;

  /* === Typography === */
  --font-heading: 'Space Grotesk', 'Inter', system-ui, -apple-system, sans-serif;
  --font-body: 'Inter', system-ui, -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', 'SF Mono', 'Menlo', monospace;

  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.5rem;
  --font-size-2xl: 2rem;
  --font-size-3xl: 3rem;
  --font-size-display: 4.5rem;

  --font-weight-regular: 400;
  --font-weight-medium: 500;
  --font-weight-bold: 700;
  --font-weight-black: 900;

  /* === Spacing === */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-12: 3rem;
  --space-16: 4rem;

  /* === Radius === */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 20px;
  --radius-full: 9999px;

  /* === Shadows & Glows === */
  --shadow-glow-primary: 0 0 24px var(--color-primary-glow);
  --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.5);
  --shadow-elevated: 0 8px 32px rgba(0, 0, 0, 0.6);

  /* === Transitions === */
  --transition-fast: 120ms ease-out;
  --transition-base: 200ms ease-out;
  --transition-slow: 400ms ease-out;
}

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

html, body {
  height: 100%;
  overflow-x: hidden;
}

body {
  font-family: var(--font-body);
  font-size: var(--font-size-base);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4 {
  font-family: var(--font-heading);
  font-weight: var(--font-weight-bold);
  letter-spacing: -0.02em;
}

.font-mono { font-family: var(--font-mono); }

/* === Logo === */
.rigo-logo {
  display: block;
  height: auto;
  max-width: 100%;
}
.rigo-logo--sm { width: 120px; }
.rigo-logo--md { width: 200px; }
.rigo-logo--lg { width: 320px; }
.rigo-logo--xl { width: 480px; }

/* === Tagline === */
.tagline {
  font-family: var(--font-mono);
  font-size: var(--font-size-sm);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-primary);
}

/* === Buttons === */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  border: none;
  border-radius: var(--radius-md);
  font-family: var(--font-body);
  font-weight: var(--font-weight-bold);
  font-size: var(--font-size-base);
  cursor: pointer;
  transition: all var(--transition-base);
  text-decoration: none;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
}

.btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.btn-primary {
  background: var(--color-primary);
  color: var(--color-bg);
}
.btn-primary:hover:not(:disabled) {
  background: var(--color-primary-hover);
  box-shadow: var(--shadow-glow-primary);
  transform: translateY(-1px);
}

.btn-ghost {
  background: transparent;
  color: var(--color-text);
  border: 1px solid var(--color-border-bright);
}
.btn-ghost:hover:not(:disabled) {
  background: var(--color-bg-elevated);
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.btn-danger {
  background: transparent;
  color: var(--color-danger);
  border: 1px solid var(--color-danger);
}
.btn-danger:hover:not(:disabled) {
  background: var(--color-danger);
  color: var(--color-bg);
}

.btn-sm { padding: var(--space-2) var(--space-4); font-size: var(--font-size-sm); }
.btn-icon { padding: var(--space-2); width: 40px; height: 40px; }
.btn-full { width: 100%; }

/* === Inputs === */
.input {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: var(--font-size-base);
  transition: all var(--transition-base);
}
.input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-dim);
}
.input::placeholder {
  color: var(--color-text-dim);
}

/* === Cards === */
.card {
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
}
.card-raised {
  background: var(--color-bg-raised);
  box-shadow: var(--shadow-card);
}

/* === Scrollbar === */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}
::-webkit-scrollbar-track {
  background: var(--color-bg);
}
::-webkit-scrollbar-thumb {
  background: var(--color-border-bright);
  border-radius: var(--radius-full);
}
::-webkit-scrollbar-thumb:hover {
  background: var(--color-primary);
}

/* === Audio Wave (decorative element matching logo) === */
.rigo-wave {
  width: 100%;
  height: 32px;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 200 32' preserveAspectRatio='none'><path d='M0,16 Q10,4 20,16 T40,16 T60,8 T80,16 T100,24 T120,8 T140,16 T160,12 T180,20 T200,16' stroke='%23FF6B1A' stroke-width='2.5' fill='none' stroke-linecap='round'/></svg>");
  background-size: 100% 100%;
  background-repeat: no-repeat;
}

/* === Animations === */
@keyframes pulse-glow {
  0%, 100% { box-shadow: 0 0 0 0 var(--color-primary-glow); }
  50% { box-shadow: 0 0 0 14px transparent; }
}

@keyframes fade-in {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes vote-pop {
  0% { transform: scale(1); }
  50% { transform: scale(1.3); }
  100% { transform: scale(1); }
}

@keyframes wave-flow {
  0% { background-position: 0% 50%; }
  100% { background-position: 100% 50%; }
}

.fade-in { animation: fade-in var(--transition-base) ease-out; }