@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@300;400;500;600;700;800&family=Outfit:wght@500;600;700;800&display=swap');

:root {
  --font-heading: 'Outfit', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-body: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  
  /* Marka Renkleri */
  --primary-green: #22c55e;
  --neon-green: #39ff14;
  --accent-cyan: #00f5d4;
  --accent-blue: #38bdf8;
  
  /* Dark Mode Zemin & Kartlar */
  --bg-main: #0a0f1d;
  --bg-subtle: #111827;
  --bg-card: #111827;
  --bg-card-elevated: #162032;
  --bg-card-hover: #1e293b;
  
  /* Tipografi */
  --text-main: #ffffff;
  --text-body: #e2e8f0;
  --text-muted: #94a3b8;
  
  /* Çerçeveler */
  --border-light: #1e293b;
  --border-accent: #334155;
  
  /* Işıltı & Geçişler */
  --gradient-brand: linear-gradient(135deg, #00f5d4 0%, #22c55e 100%);
  --glow-green: 0 0 25px rgba(34, 197, 94, 0.4);
  --glow-cyan: 0 0 25px rgba(0, 245, 212, 0.35);
}

* {
  box-sizing: border-box;
}

body {
  font-family: var(--font-body);
  background-color: var(--bg-main);
  color: var(--text-body);
  overflow-x: hidden;
  scroll-behavior: smooth;
  line-height: 1.6;
}

h1, h2, h3, h4, h5, h6, .font-heading {
  font-family: var(--font-heading);
  letter-spacing: -0.02em;
  color: var(--text-main);
}

/* Gradient Metinler */
.gradient-text {
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
}

.text-neon {
  color: var(--neon-green);
}

.text-cyan {
  color: var(--accent-cyan);
}

/* Dark Mode Kartlar */
.herbal-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: 1.25rem;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.4);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  color: var(--text-body);
}

.herbal-card:hover {
  border-color: var(--primary-green);
  box-shadow: 0 15px 35px -4px rgba(34, 197, 94, 0.25);
  transform: translateY(-4px);
  background-color: var(--bg-card-elevated);
}

.featured-herbal-card {
  background: linear-gradient(180deg, #162032 0%, #111827 100%);
  border: 2px solid var(--primary-green);
  border-radius: 1.25rem;
  box-shadow: var(--glow-green);
}

/* Sticky Dark Nav */
.herbal-nav {
  background: rgba(10, 15, 29, 0.9);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-light);
}

/* Dark Mode Form Inputları */
.herbal-input {
  background-color: #070b14;
  border: 1px solid var(--border-accent);
  color: #ffffff;
  border-radius: 0.75rem;
  padding: 0.75rem 1rem;
  font-size: 0.875rem;
  transition: all 0.2s ease;
}

.herbal-input:focus {
  background-color: #0d1527;
  outline: none;
  border-color: var(--accent-cyan);
  box-shadow: 0 0 0 3px rgba(0, 245, 212, 0.2);
}

select.herbal-input option {
  background-color: #0d1527;
  color: #ffffff;
  padding: 8px;
}

/* Video Card Thumbnail Effects */
.video-card {
  position: relative;
  overflow: hidden;
  border-radius: 1.25rem;
  background-color: var(--bg-card);
  border: 1px solid var(--border-light);
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.video-card:hover {
  transform: translateY(-4px);
  border-color: var(--primary-green);
  box-shadow: var(--glow-green);
}

.video-play-btn {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: var(--gradient-brand);
  color: #022c22;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.5);
  transition: all 0.25s ease;
}

.video-card:hover .video-play-btn {
  transform: scale(1.15);
  box-shadow: 0 0 30px rgba(34, 197, 94, 0.7);
}

/* Tablar & Butonlar */
.gallery-tab.active,
.calc-tab-btn.active {
  background: var(--gradient-brand) !important;
  color: #022c22 !important;
  font-weight: 700;
  border-color: transparent !important;
  box-shadow: 0 4px 20px rgba(34, 197, 94, 0.4);
}

.calc-tab-btn {
  background-color: var(--bg-card);
  color: var(--text-muted);
  border: 1px solid var(--border-light);
  transition: all 0.2s ease;
}

.calc-tab-btn:hover {
  border-color: var(--primary-green);
  color: #ffffff;
}

/* Compliance Disclaimer Box */
.compliance-box {
  background-color: rgba(17, 24, 39, 0.7);
  border: 1px dashed var(--border-accent);
  border-radius: 1rem;
  padding: 1.25rem;
  color: var(--text-muted);
}

/* Scrollbar */
::-webkit-scrollbar {
  width: 8px;
  height: 6px;
}
::-webkit-scrollbar-track {
  background: #0a0f1d;
}
::-webkit-scrollbar-thumb {
  background: #1e293b;
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: #22c55e;
}

/* Mobile & Touch Optimizations */
html, body {
  overflow-x: hidden;
  max-width: 100vw;
  -webkit-text-size-adjust: 100%;
  -webkit-tap-highlight-color: transparent;
}

.no-scrollbar::-webkit-scrollbar {
  display: none;
}
.no-scrollbar {
  -ms-overflow-style: none;
  scrollbar-width: none;
}

@media (max-width: 640px) {
  .herbal-input {
    font-size: 16px !important; /* iOS Safari zoom fix */
    padding: 0.65rem 0.85rem;
  }
  
  .calc-tab-btn {
    padding: 0.65rem 0.4rem;
    font-size: 11px;
  }

  .calc-tab-btn i {
    width: 16px;
    height: 16px;
  }

  .video-play-btn {
    width: 44px;
    height: 44px;
  }
}

/* Floating Sticky WhatsApp Button */
.floating-wa-btn {
  position: fixed;
  bottom: 20px;
  right: 20px;
  z-index: 90;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: linear-gradient(135deg, #25D366 0%, #128C7E 100%);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 10px 25px rgba(37, 211, 102, 0.4);
  transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.floating-wa-btn:hover {
  transform: scale(1.1);
  box-shadow: 0 15px 35px rgba(37, 211, 102, 0.6);
}

.floating-wa-btn::before {
  content: '';
  position: absolute;
  inset: -4px;
  border-radius: 50%;
  border: 2px solid #25D366;
  animation: pulse-ring 2.2s cubic-bezier(0.215, 0.61, 0.355, 1) infinite;
  pointer-events: none;
}

@keyframes pulse-ring {
  0% { transform: scale(0.95); opacity: 0.8; }
  50% { transform: scale(1.25); opacity: 0; }
  100% { transform: scale(0.95); opacity: 0; }
}