/* Erzo3D Koyu & Modern 3D E-Ticaret Tasarım Sistemi (Design System) */
@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@300;400;500;600;700;800&family=Outfit:wght@400;600;700;800;900&display=swap');

:root {
  --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-display: 'Outfit', sans-serif;

  --bg-main: #090d16;
  --bg-card: #111827;
  --bg-card-hover: #1e293b;
  --bg-input: #0f172a;
  --border-color: rgba(255, 255, 255, 0.08);
  --border-focus: #f97316;

  --brand-orange: #f97316;
  --brand-orange-hover: #ea580c;
  --brand-orange-light: rgba(249, 115, 22, 0.15);

  --brand-cyan: #06b6d4;
  --brand-cyan-light: rgba(6, 182, 212, 0.15);

  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --text-subtle: #64748b;

  --shadow-card: 0 10px 30px -10px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 25px rgba(249, 115, 22, 0.25);

  accent-color: var(--brand-orange);
  color-scheme: dark;
}

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

body {
  font-family: var(--font-sans);
  background-color: var(--bg-main);
  color: var(--text-main);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: #ffffff;
}

a {
  color: inherit;
  text-decoration: none;
  transition: all 0.2s ease;
}

/* Glassmorphism Header */
.glass-nav {
  background: rgba(9, 13, 22, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-color);
}

/* Modern Kartlar */
.erzo-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.25s ease, border-color 0.25s ease;
  overflow: hidden;
}

.erzo-card:hover {
  transform: translateY(-4px);
  border-color: rgba(249, 115, 22, 0.4);
  box-shadow: 0 20px 40px -15px rgba(0, 0, 0, 0.7), var(--shadow-glow);
}

/* Renk Seçim Daireleri */
.color-swatch {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  border: 2px solid rgba(255, 255, 255, 0.2);
  cursor: pointer;
  position: relative;
  transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.color-swatch:hover {
  transform: scale(1.1);
}

.color-swatch.active {
  border-color: #ffffff;
  box-shadow: 0 0 0 3px var(--brand-orange);
  transform: scale(1.15);
}

/* Boyut / Varyasyon Hapları (Pills) */
.size-pill {
  padding: 10px 18px;
  border-radius: 10px;
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.size-pill:hover {
  border-color: rgba(249, 115, 22, 0.5);
  background: rgba(249, 115, 22, 0.05);
}

.size-pill.active {
  border-color: var(--brand-orange);
  background: var(--brand-orange-light);
  color: #ffedd5;
  box-shadow: 0 0 15px rgba(249, 115, 22, 0.2);
}

/* Plaka / Canlı Önizleme Kutusu */
.plate-preview-box {
  background: linear-gradient(135deg, #18181b 0%, #09090b 100%);
  border: 2px solid #3f3f46;
  border-radius: 12px;
  padding: 16px;
  box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.6);
  position: relative;
}

.plate-lip-custom {
  background: #000000;
  border: 1.5px solid var(--brand-orange);
  border-radius: 6px;
  padding: 6px 12px;
  color: var(--brand-orange);
  font-family: var(--font-display);
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 2px;
  text-align: center;
  transition: all 0.2s ease;
}

/* Butonlar */
.btn-primary {
  background: linear-gradient(135deg, #ff7a00 0%, #ea580c 100%);
  color: #ffffff;
  font-weight: 700;
  padding: 12px 24px;
  border-radius: 12px;
  border: none;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: all 0.25s ease;
  box-shadow: 0 4px 15px rgba(234, 88, 12, 0.35);
}

.btn-primary:hover {
  background: linear-gradient(135deg, #ff9124 0%, #f97316 100%);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(234, 88, 12, 0.5);
}

.btn-primary:active {
  transform: translateY(0);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.06);
  color: #ffffff;
  font-weight: 600;
  padding: 12px 20px;
  border-radius: 12px;
  border: 1px solid var(--border-color);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: all 0.2s ease;
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.2);
}

/* Giriş Alanları (Inputs) */
.form-input {
  width: 100%;
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  padding: 12px 16px;
  color: #ffffff;
  font-family: inherit;
  font-size: 0.95rem;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.form-input:focus {
  outline: none;
  border-color: var(--brand-orange);
  box-shadow: 0 0 0 3px rgba(249, 115, 22, 0.2);
}

.form-input::placeholder {
  color: var(--text-subtle);
}

/* Toast Bildirimleri */
#toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 10px;
  pointer-events: none;
}

.toast {
  pointer-events: auto;
  background: #1e293b;
  color: #ffffff;
  border: 1px solid var(--border-color);
  padding: 14px 20px;
  border-radius: 12px;
  box-shadow: 0 10px 30px rgba(0,0,0,0.6);
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.9rem;
  font-weight: 600;
  animation: slideUp 0.3s cubic-bezier(0.16, 1, 0.3, 1) forwards;
  max-width: 380px;
}

.toast.success {
  border-left: 4px solid #10b981;
}

.toast.error {
  border-left: 4px solid #ef4444;
}

.toast.info {
  border-left: 4px solid var(--brand-orange);
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Modal Dialog */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(8px);
  z-index: 999;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  opacity: 0;
  visibility: hidden;
  transition: all 0.25s ease;
}

.modal-overlay.active {
  opacity: 1;
  visibility: visible;
}

.modal-content {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  width: 100%;
  max-width: 550px;
  padding: 30px;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.75);
  transform: scale(0.95);
  transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

.modal-overlay.active .modal-content {
  transform: scale(1);
}

/* Responsive Düzenler */
@media (max-width: 768px) {
  .hero-title {
    font-size: 2.25rem !important;
  }
}