/* ==========================================================================
   Deprem Uyarı Sistemi — Design System
   Modern Dark Canvas: Obsidian Canvas, Bold Tırnaksız (Roboto) Typography,
   Emergency Red Accents, Chromatic Tiles, and Monospace Precision.
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Roboto:ital,wght@0,300;0,400;0,500;0,700;0,900;1,400;1,700;1,900&family=Roboto+Mono:wght@400;500;700&display=swap');

:root {
  /* Colors */
  --color-brand-red: #ef4444;
  --color-brand-red-hover: #dc2626;
  --color-brand-red-light: #f87171;
  --color-brand-red-glow: rgba(239, 68, 68, 0.25);

  --color-iris-gleam: #847dff;
  --color-cyan-signal: #00b3dd;
  --color-pale-iris: #d1c9ff;
  --color-deep-iris: #4b49aa;
  --color-orchid-bloom: #dd90d8;
  --color-periwinkle: #90b8f0;
  --color-obsidian: #0f1011;
  --color-abyss: #090a0b;
  --color-graphite: #2e2e2e;
  --color-steel: #3f4041;
  --color-silver: #cacaca;
  --color-fog: #6a6b6b;
  --color-ash: #9f9fa0;
  --color-cloud: #f5f5f7;
  --color-pure: #ffffff;
  --color-void: #000000;

  /* Typography - Bold Sans-Serif (Tırnaksız) */
  --font-sans: 'Roboto', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-heading: 'Roboto', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'Roboto Mono', monospace;

  /* Spacing & Radii */
  --radius-btn: 8px;
  --radius-card: 16px;
  --radius-feature: 30px;
  --radius-pill: 9999px;
}

html {
  font-family: var(--font-sans);
  background-color: var(--color-obsidian);
  color: var(--color-pure);
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  background-color: var(--color-obsidian);
  color: var(--color-ash);
  overflow-x: hidden;
}

/* Bold Tırnaksız Headline System */
.font-heading,
.font-serif-display {
  font-family: var(--font-heading);
  font-weight: 900;
  line-height: 1.05;
  letter-spacing: -0.035em;
}

/* Emergency Red Accent Utilities */
.text-accent-red {
  color: var(--color-brand-red);
}

.bg-accent-red {
  background-color: var(--color-brand-red);
}

.border-accent-red {
  border-color: var(--color-brand-red);
}

/* Monospace Micro Labels */
.font-mono-label {
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

/* Origin Glass Nav */
.origin-glass-nav {
  background: rgba(15, 16, 17, 0.85);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

/* Origin Glass Panels */
.origin-glass-card {
  background: rgba(46, 46, 46, 0.55);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

/* Primary CTA Button */
.btn-primary-origin {
  background-color: var(--color-pure);
  color: var(--color-void);
  border-radius: var(--radius-btn);
  padding: 12px 20px;
  font-size: 15px;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: all 0.2s ease;
}

.btn-primary-origin:hover {
  background-color: #f1f1f1;
  transform: translateY(-1px);
}

/* Ghost Button */
.btn-ghost-origin {
  background-color: transparent;
  color: var(--color-pure);
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: var(--radius-btn);
  padding: 11px 18px;
  font-size: 14px;
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: all 0.2s ease;
}

.btn-ghost-origin:hover {
  background-color: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.45);
}

/* Red Emergency CTA Button */
.btn-emergency-red {
  background-color: var(--color-brand-red);
  color: #ffffff;
  border-radius: var(--radius-btn);
  padding: 12px 22px;
  font-size: 15px;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  box-shadow: 0 4px 20px var(--color-brand-red-glow);
  transition: all 0.2s ease;
}

.btn-emergency-red:hover {
  background-color: var(--color-brand-red-hover);
  transform: translateY(-1px);
  box-shadow: 0 6px 24px rgba(239, 68, 68, 0.4);
}

/* Unified Header Store Buttons (Same Design + Eye-Catching Shimmer & Pulse Animation) */
.btn-header-store {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 8px 15px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: #ffffff;
  background: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
  border-radius: var(--radius-btn);
  border: 1px solid rgba(255, 255, 255, 0.2);
  box-shadow: 0 4px 14px rgba(239, 68, 68, 0.35);
  overflow: hidden;
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  animation: store-pulse 3s infinite ease-in-out;
}

.btn-header-store:hover {
  transform: translateY(-2px) scale(1.02);
  background: linear-gradient(135deg, #f87171 0%, #ef4444 100%);
  box-shadow: 0 6px 22px rgba(239, 68, 68, 0.6);
  border-color: rgba(255, 255, 255, 0.45);
}

/* Light streak shimmer sweep animation across button */
.btn-header-store::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -75%;
  width: 50%;
  height: 200%;
  background: linear-gradient(
    60deg,
    rgba(255, 255, 255, 0) 20%,
    rgba(255, 255, 255, 0.4) 50%,
    rgba(255, 255, 255, 0) 80%
  );
  transform: rotate(25deg);
  animation: store-shimmer 3.2s infinite;
  pointer-events: none;
}

@keyframes store-shimmer {
  0% {
    left: -75%;
  }
  28% {
    left: 135%;
  }
  100% {
    left: 135%;
  }
}

@keyframes store-pulse {
  0%, 100% {
    box-shadow: 0 4px 14px rgba(239, 68, 68, 0.35);
    border-color: rgba(255, 255, 255, 0.2);
  }
  50% {
    box-shadow: 0 4px 22px rgba(239, 68, 68, 0.65), 0 0 10px rgba(239, 68, 68, 0.35);
    border-color: rgba(255, 255, 255, 0.4);
  }
}

/* Pill Chip Eyebrow */
.origin-pill-chip {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-pill);
  padding: 8px 18px;
  font-family: var(--font-mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-cloud);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

/* Scroll Reveal */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: opacity, transform;
}

.reveal.active {
  opacity: 1;
  transform: translateY(0);
}

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }

/* Subtle Radial Lighting */
.radial-halo-hero {
  background: radial-gradient(circle at 50% 30%, rgba(239, 68, 68, 0.12) 0%, rgba(132, 125, 255, 0.08) 35%, rgba(15, 16, 17, 0) 70%);
}

.radial-halo-pulse {
  background: radial-gradient(circle at 50% 50%, rgba(239, 68, 68, 0.16) 0%, rgba(15, 16, 17, 0) 65%);
}

/* Accordion Smooth Transition (Fixed - Uses is-open instead of active to prevent scroll reveal conflict) */
.faq-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.25s ease;
  opacity: 0;
}

.faq-card {
  transition: border-color 0.2s ease, background-color 0.2s ease;
}

.faq-card.is-open {
  border-color: rgba(239, 68, 68, 0.45);
  background-color: rgba(46, 46, 46, 0.5);
}

.faq-card.is-open .faq-content {
  opacity: 1;
}

.faq-icon {
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1), color 0.2s ease;
}

.faq-card.is-open .faq-icon {
  transform: rotate(180deg);
  color: var(--color-brand-red);
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 8px;
}
::-webkit-scrollbar-track {
  background: #0f1011;
}
::-webkit-scrollbar-thumb {
  background: #2e2e2e;
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: #3f4041;
}