:root {
  /* Ana Renkler (Tech Modern) */
  --color-primary: #38bdf8;
  --color-primary-rgb: 56, 189, 248;
  --color-secondary: #0ea5e9;
  --color-accent: #f472b6;
  --color-accent-rgb: 244, 114, 182;

  /* Nötr Renkler */
  --color-bg: #0f172a;
  --color-bg-rgb: 15, 23, 42;
  --color-surface: #1e293b;
  --color-surface-hover: #334155;
  --color-text-primary: #f8fafc;
  --color-text-secondary: #cbd5e1;
  --color-border: #334155;

  /* Fonksiyonel Renkler */
  --color-success: #10b981;
  --color-warning: #f59e0b;
  --color-error: #ef4444;

  /* Spacing Sistemi (8px grid) */
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  --space-2xl: 48px;
  --space-3xl: 64px;
  --space-4xl: 96px;
  --space-5xl: 128px;

  /* Border Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  /* Shadow Sistemi */
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.2);
  --shadow-lg: 0 12px 32px rgba(0,0,0,0.4);
  --shadow-xl: 0 24px 64px rgba(0,0,0,0.6);
  --shadow-glow: 0 0 20px rgba(var(--color-primary-rgb), 0.3);

  /* Tipografi */
  --font-display: 'Outfit', sans-serif;
  --font-body: 'Plus Jakarta Sans', sans-serif;

  /* Easing */
  --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.76, 0, 0.24, 1);
}

/* Reset & Base */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-body);
  font-size: 18px;
  line-height: 1.6;
  color: var(--color-text-primary);
  background-color: var(--color-bg);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.1;
  color: var(--color-text-primary);
}

h1 { font-size: clamp(2.5rem, 5vw + 1rem, 5rem); letter-spacing: -0.04em; }
h2 { font-size: clamp(1.8rem, 3vw + 0.5rem, 3rem); letter-spacing: -0.02em; }
h3 { font-size: clamp(1.3rem, 2vw + 0.5rem, 2rem); }
p { font-size: clamp(1rem, 1vw + 0.5rem, 1.125rem); color: var(--color-text-secondary); }

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: var(--color-text-primary);
  text-decoration: none;
  transition: color 0.3s ease;
}

a:hover {
  color: var(--color-primary);
}

/* Background Effects */
.grain-overlay::after {
  content: '';
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.04'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: 9999;
}

.hero-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  background:
    radial-gradient(circle at 20% 40%, rgba(56, 189, 248, 0.15) 0%, transparent 40%),
    radial-gradient(circle at 80% 60%, rgba(244, 114, 182, 0.1) 0%, transparent 40%);
  filter: blur(40px);
}

/* Layout Utilities */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
  position: relative;
}

.section {
  padding: var(--space-5xl) 0;
}

.section-hero {
  padding: 180px 0 var(--space-4xl) 0;
  min-height: 100vh;
  display: flex;
  align-items: center;
}

.grid {
  display: grid;
  gap: var(--space-xl);
}

.grid-2 { grid-template-columns: repeat(2, 1fr); align-items: start; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-asymmetric { grid-template-columns: 1.5fr 1fr; align-items: center; }

@media (max-width: 992px) {
  .grid-2, .grid-3, .grid-asymmetric {
    grid-template-columns: 1fr;
  }
}

/* Nav */
.nav {
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 100;
  padding: var(--space-md) 0;
  backdrop-filter: blur(12px);
  background: rgba(var(--color-bg-rgb), 0.8);
  border-bottom: 1px solid var(--color-border);
  transition: transform 0.3s var(--ease-out-expo), padding 0.3s var(--ease-out-expo);
}

.nav.scrolled {
  padding: var(--space-sm) 0;
}

/* Hide nav when scrolling down */
.nav.nav-hidden {
    transform: translateY(-100%);
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--color-text-primary);
  display: flex;
  align-items: center;
  gap: 8px;
}

.logo-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--color-primary);
  display: inline-block;
  box-shadow: var(--shadow-glow);
}

.nav-links {
  display: flex;
  gap: var(--space-xl);
  align-items: center;
}

.nav-link {
  font-weight: 600;
  font-size: 15px;
  color: var(--color-text-secondary);
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--color-primary);
  transition: width 0.3s var(--ease-out-expo);
}

.nav-link:hover {
  color: var(--color-text-primary);
}

.nav-link:hover::after {
  width: 100%;
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
  }
}

/* Nav Actions (Right Side) */
.nav-actions {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}

.cart-link {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  color: var(--color-text-secondary);
  background: rgba(var(--color-surface-hover), 0.3);
  border: 1px solid var(--color-border);
  transition: all 0.3s var(--ease-out-expo);
}

.cart-link:hover {
  color: var(--color-primary);
  background: rgba(var(--color-primary-rgb), 0.1);
  border-color: var(--color-primary);
  transform: translateY(-2px);
}

.cart-badge {
  position: absolute;
  top: -6px;
  right: -6px;
  min-width: 20px;
  height: 20px;
  padding: 0 6px;
  background: var(--color-accent);
  color: #fff;
  font-size: 11px;
  font-weight: 800;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 10px rgba(var(--color-accent-rgb), 0.5);
  border: 2px solid var(--color-bg);
}

/* Components */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  font-family: var(--font-body);
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--color-bg);
  background: var(--color-primary);
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all 0.3s var(--ease-out-expo);
  box-shadow: 0 4px 15px rgba(var(--color-primary-rgb), 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(var(--color-primary-rgb), 0.5);
  background: var(--color-text-primary);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  font-family: var(--font-body);
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--color-text-primary);
  background: rgba(var(--color-surface-hover), 0.5);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all 0.3s var(--ease-out-expo);
}

.btn-secondary:hover {
  background: var(--color-surface);
  border-color: var(--color-primary);
}

.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  transition: all 0.4s var(--ease-out-expo);
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 0;
  background-color: var(--color-primary);
  transition: height 0.4s var(--ease-out-expo);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(var(--color-primary-rgb), 0.5);
}

.card:hover::before {
  height: 100%;
}

.card-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: rgba(var(--color-primary-rgb), 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-lg);
  color: var(--color-primary);
}

.card-title {
  margin-bottom: var(--space-sm);
  font-size: 1.5rem;
}

/* Quote Module (Core) */
.quote-module {
  background: rgba(var(--color-surface), 0.5);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-2xl);
  backdrop-filter: blur(16px);
  position: relative;
  box-shadow: var(--shadow-xl);
}

.quote-module::after {
  content: '';
  position: absolute;
  top: -1px; left: -1px; right: -1px; bottom: -1px;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(135deg, rgba(56, 189, 248, 0.2), transparent 50%, rgba(244, 114, 182, 0.2));
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  mask-composite: exclude;
  pointer-events: none;
}

.upload-area {
  border: 2px dashed var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-3xl) var(--space-lg);
  text-align: center;
  transition: all 0.3s var(--ease-out-expo);
  cursor: pointer;
  background: rgba(var(--color-bg), 0.5);
  margin-bottom: var(--space-xl);
  position: relative;
}

.upload-area:hover, .upload-area.dragover {
  border-color: var(--color-primary);
  background: rgba(var(--color-primary-rgb), 0.05);
}

.upload-icon {
  font-size: 3rem;
  color: var(--color-primary);
  margin-bottom: var(--space-md);
}

.upload-hint {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  margin-top: var(--space-xs);
}

#fileInput {
  display: none;
}

.param-group {
  margin-bottom: var(--space-lg);
}

.param-label {
  display: block;
  font-size: 0.9rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-sm);
}

/* Custom Select & Radios */
.radio-slider {
  display: flex;
  background: rgba(var(--color-bg), 0.8);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 4px;
  gap: 4px;
}

.radio-slider label {
  flex: 1;
  text-align: center;
  padding: 10px;
  cursor: pointer;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.95rem;
  transition: all 0.2s ease;
  color: var(--color-text-secondary);
}

.radio-slider input[type="radio"] {
  display: none;
}

.radio-slider input[type="radio"]:checked + label {
  background: var(--color-surface-hover);
  color: var(--color-text-primary);
  box-shadow: var(--shadow-sm);
}

select.input {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23cbd5e1' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
  background-size: 16px;
  padding-right: 48px;
}

.input {
  width: 100%;
  padding: 14px 18px;
  font-family: var(--font-body);
  font-size: 16px;
  color: var(--color-text-primary);
  background: var(--color-bg);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md);
  outline: none;
  transition: all 0.25s ease;
}

.input:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(var(--color-primary-rgb), 0.15);
}

.price-display {
  padding: var(--space-xl);
  background: rgba(var(--color-primary-rgb), 0.05);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(var(--color-primary-rgb), 0.2);
  margin-top: var(--space-2xl);
  text-align: center;
}

.price-title {
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-xs);
}

.price-value {
  font-family: var(--font-display);
  font-size: 3rem;
  font-weight: 800;
  color: var(--color-text-primary);
  line-height: 1;
  margin-bottom: var(--space-lg);
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 4px;
}

.price-currency {
  font-size: 1.5rem;
  color: var(--color-primary);
}

.loader {
  display: none;
  width: 48px;
  height: 48px;
  border: 4px solid var(--color-border);
  border-bottom-color: var(--color-primary);
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin: 0 auto;
}

.loader.active {
  display: flex;
}

.upload-content.hidden {
    display: none;
}

/* Process Steps */
.step-item {
  position: relative;
  text-align: center;
}

.step-number {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: var(--color-surface);
  border: 1px solid var(--color-primary);
  color: var(--color-primary);
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-md);
  box-shadow: var(--shadow-glow);
  position: relative;
  z-index: 2;
}

.step-item::after {
  content: '';
  position: absolute;
  top: 32px;
  left: calc(50% + 32px);
  width: calc(100% - 64px);
  height: 2px;
  background: dashed 2px var(--color-border);
  z-index: 1;
}

.step-item:last-child::after {
  display: none;
}

@media (max-width: 992px) {
  .step-item::after {
    display: none;
  }
}

/* Footer */
.footer {
  border-top: 1px solid var(--color-border);
  padding: var(--space-4xl) 0 var(--space-lg) 0;
  background: rgba(var(--color-surface), 0.3);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-xl);
  margin-bottom: var(--space-3xl);
}

.footer-col h4 {
  font-family: var(--font-body);
  font-size: 1.1rem;
  margin-bottom: var(--space-md);
}

.footer-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

@media (max-width: 768px) {
  .footer-grid {
    grid-template-columns: 1fr;
  }
}

.footer-bottom {
  border-top: 1px solid var(--color-border);
  padding-top: var(--space-lg);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.9rem;
  color: var(--color-text-secondary);
}

/* Tabs System */
.tabs-container {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

.tabs-header {
  display: flex;
  gap: var(--space-sm);
  overflow-x: auto;
  padding-bottom: var(--space-sm);
  justify-content: center;
}

.tabs-header::-webkit-scrollbar {
  display: none;
}

.tab-btn {
  padding: 12px 24px;
  background: rgba(var(--color-surface-hover), 0.3);
  border: 1px solid var(--color-border);
  color: var(--color-text-secondary);
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 1rem;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all 0.3s var(--ease-out-expo);
  white-space: nowrap;
}

.tab-btn:hover {
  background: var(--color-surface);
  color: var(--color-text-primary);
}

.tab-btn.active {
  background: var(--color-primary);
  color: var(--color-bg);
  border-color: var(--color-primary);
  box-shadow: 0 4px 15px rgba(var(--color-primary-rgb), 0.3);
}

.tab-pane {
  display: none;
  animation: scaleIn 0.4s var(--ease-out-expo);
}

.tab-pane.active {
  display: block;
}

.contact-info svg {
    color: var(--color-primary);
}

/* Animations */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes scaleIn {
  from { opacity: 0; transform: scale(0.95); }
  to { opacity: 1; transform: scale(1); }
}

@keyframes slideInLeft {
  from { opacity: 0; transform: translateX(-40px); }
  to { opacity: 1; transform: translateX(0); }
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

.animate-on-scroll {
  opacity: 0;
}

.animate-on-scroll.is-visible {
  animation: fadeInUp 0.8s var(--ease-out-expo) forwards;
}

.stagger-1 { animation-delay: 0.1s; }
.stagger-2 { animation-delay: 0.2s; }
.stagger-3 { animation-delay: 0.3s; }
.stagger-4 { animation-delay: 0.4s; }
.stagger-5 { animation-delay: 0.5s; }

:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

/* File Upload State Modifiers */
#uploadContent.hidden {
    display: none !important;
}

#resultBox.active {
    display: flex !important;
}

@keyframes scaleIn {
    0% { transform: scale(0.9); opacity: 0; }
    100% { transform: scale(1); opacity: 1; }
}

@keyframes slideDown {
    0% { transform: translateY(-10px); opacity: 0; }
    100% { transform: translateY(0); opacity: 1; }
}

.price-updated {
    animation: scaleIn 0.4s var(--ease-out-expo);
}

/* ---- COLOR PICKER SYSTEM ---- */
.color-picker-container {
    display: flex;
    flex-direction: column;
    gap: 24px;
    margin-top: 24px;
}

.color-segment {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.color-segment-title {
    font-size: 0.8rem;
    color: var(--color-text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
    font-weight: 600;
}

.color-options {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.color-swatch-wrapper {
    position: relative;
    cursor: pointer;
}

.color-swatch-wrapper input {
    position: absolute;
    opacity: 0;
    cursor: pointer;
    height: 0;
    width: 0;
}

.color-swatch {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    border: 2px solid rgba(255,255,255,0.1);
    transition: all 0.3s var(--ease-out);
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Tooltip for color name */
.color-swatch::after {
    content: attr(data-name);
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%) translateY(-8px);
    background: var(--color-surface);
    color: #fff;
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 0.7rem;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: all 0.3s var(--ease-out);
    border: 1px solid var(--color-border);
    z-index: 10;
}

.color-swatch-wrapper:hover .color-swatch::after {
    opacity: 1;
    transform: translateX(-50%) translateY(-12px);
}

.color-swatch-wrapper:hover .color-swatch {
    transform: scale(1.15);
    border-color: rgba(255,255,255,0.3);
}

.color-swatch-wrapper input:checked + .color-swatch {
    transform: scale(1.2);
    border-color: var(--color-primary);
    box-shadow: 0 0 15px rgba(var(--color-primary-rgb), 0.4);
}

.color-swatch-wrapper input:checked + .color-swatch::before {
    content: '✓';
    color: #fff;
    font-size: 14px;
    font-weight: bold;
    text-shadow: 0 1px 2px rgba(0,0,0,0.5);
}

/* Segment Based Accents */
.segment-premium .color-swatch {
    box-shadow: inset 0 0 5px rgba(255, 215, 0, 0.2);
}

.segment-luxe .color-swatch {
    box-shadow: inset 0 0 8px rgba(0, 242, 255, 0.2);
}

/* Dynamic Gradients for Special Colors handled via JS style.background */
@keyframes glowPulse {
    from { box-shadow: 0 0 5px rgba(204, 255, 0, 0.4); }
    to { box-shadow: 0 0 20px rgba(204, 255, 0, 0.8); }
}

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

/* --- Product Modal Styles --- */
.modal-overlay {
    position: fixed;
    top: 0; left: 0; width: 100%; height: 100%;
    background: rgba(var(--color-bg-rgb), 0.85);
    backdrop-filter: blur(12px);
    z-index: 2000;
    display: none; /* JS ile açılacak */
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.4s var(--ease-out-expo);
}

.modal-overlay.active {
    display: flex;
    opacity: 1;
}

.modal-container {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    width: 90%;
    max-width: 800px;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
    padding: var(--space-3xl);
    box-shadow: var(--shadow-xl);
    transform: scale(0.9);
    transition: transform 0.5s var(--ease-out-expo);
}

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

.modal-close {
    position: absolute;
    top: var(--space-lg);
    right: var(--space-lg);
    background: rgba(255,255,255,0.05);
    border: 1px solid var(--color-border);
    color: var(--color-text-secondary);
    width: 44px;
    height: 44px;
    border-radius: var(--radius-full);
    display: flex;
    justify-content: center;
    align-items: center;
    cursor: pointer;
    transition: all 0.3s;
    z-index: 10;
}

.modal-close:hover {
    background: var(--color-error);
    color: white;
    transform: rotate(90deg);
}

.modal-grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: var(--space-3xl);
}

@media (max-width: 768px) {
    .modal-grid { grid-template-columns: 1fr; }
    .modal-container { padding: var(--space-xl); width: 95%; }
}

.modal-visual {
    background: rgba(var(--color-bg-rgb), 0.5);
    border-radius: var(--radius-lg);
    border: 1px dashed var(--color-border);
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 300px;
}

.modal-info h2 { font-size: 2.5rem; margin-bottom: var(--space-md); color: var(--color-primary); }
.modal-price { font-family: var(--font-display); font-size: 2rem; font-weight: 800; margin-bottom: var(--space-lg); }
.modal-desc { line-height: 1.7; color: var(--color-text-secondary); margin-bottom: var(--space-xl); }

.modal-specs {
    background: rgba(255,255,255,0.03);
    padding: var(--space-lg);
    border-radius: var(--radius-md);
    margin-bottom: var(--space-xl);
}

.modal-spec-item:last-child { border-bottom: none; }

/* --- Account & Auth Styles --- */
.user-link {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border-radius: var(--radius-md);
    color: var(--color-text-secondary);
    background: rgba(var(--color-surface-hover), 0.3);
    border: 1px solid var(--color-border);
    transition: all 0.3s var(--ease-out-expo);
}

.user-link:hover {
    color: var(--color-primary);
    background: rgba(var(--color-primary-rgb), 0.1);
    border-color: var(--color-primary);
    transform: translateY(-2px);
}

.auth-tabs {
    display: flex;
    gap: var(--space-md);
    margin-bottom: var(--space-xl);
    border-bottom: 1px solid var(--color-border);
    padding-bottom: 12px;
}

.auth-tab-btn {
    background: none;
    border: none;
    color: var(--color-text-secondary);
    font-weight: 700;
    font-size: 1.1rem;
    cursor: pointer;
    padding: 4px 12px;
    position: relative;
    transition: all 0.3s;
}

.auth-tab-btn.active {
    color: var(--color-primary);
}

.auth-tab-btn.active::after {
    content: '';
    position: absolute;
    bottom: -13px;
    left: 0;
    width: 100%;
    height: 3px;
    background: var(--color-primary);
    border-radius: 3px 3px 0 0;
}

.form-group {
    margin-bottom: var(--space-lg);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-md);
}

@media (max-width: 600px) {
    .form-row { grid-template-columns: 1fr; }
}

/* --- Cart Detail Styles --- */
.cart-items-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
    margin-bottom: var(--space-xl);
    max-height: 400px;
    overflow-y: auto;
    padding-right: 8px;
}

.cart-item {
    display: grid;
    grid-template-columns: 60px 1fr auto;
    gap: var(--space-md);
    align-items: center;
    background: rgba(255,255,255,0.02);
    padding: var(--space-md);
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
}

.cart-item-img {
    width: 60px;
    height: 60px;
    background: rgba(var(--color-bg-rgb), 0.5);
    border-radius: var(--radius-sm);
    display: flex;
    justify-content: center;
    align-items: center;
    color: var(--color-primary);
}

.cart-item-info h4 { font-size: 1rem; margin-bottom: 2px; }
.cart-item-info p { font-size: 0.8rem; color: var(--color-text-secondary); }

.cart-item-actions {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 8px;
}

.cart-item-price { font-weight: 700; font-family: var(--font-display); }
.cart-remove-btn {
    background: none;
    border: none;
    color: var(--color-accent);
    font-size: 0.75rem;
    font-weight: 700;
    cursor: pointer;
    text-decoration: underline;
}

.cart-summary {
    border-top: 1px solid var(--color-border);
    padding-top: var(--space-xl);
}

.summary-row {
    display: flex;
    justify-content: space-between;
    margin-bottom: var(--space-sm);
}

.summary-total {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--color-primary);
    margin-top: var(--space-md);
    padding-top: var(--space-md);
    border-top: 1px dashed var(--color-border);
}

/* --- Checkout Styles --- */
.checkout-steps {
    display: flex;
    gap: 12px;
    margin-bottom: var(--space-2xl);
}

.checkout-step {
    flex: 1;
    height: 4px;
    background: var(--color-border);
    border-radius: 2px;
}

.checkout-step.active {
    background: var(--color-primary);
}

.checkout-step.completed {
    background: var(--color-success);
}

.address-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-md);
}

.address-card {
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--space-md);
    cursor: pointer;
    transition: all 0.3s;
}

.address-card.selected {
    border-color: var(--color-primary);
    background: rgba(var(--color-primary-rgb), 0.05);
}

.badge-3d {
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    color: white;
    font-size: 0.7rem;
    font-weight: 900;
    padding: 2px 6px;
    border-radius: 4px;
    text-transform: uppercase;
    margin-left: 8px;
}

/* --- Account Dropdown & Menu Wrapper --- */
.user-menu-wrapper {
    position: relative;
    display: inline-block;
}

.user-dropdown {
    position: absolute;
    top: calc(100% + 12px);
    right: 0;
    width: 220px;
    background: rgba(var(--color-bg-rgb), 0.9);
    backdrop-filter: blur(16px);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    padding: 8px;
    display: none;
    flex-direction: column;
    z-index: 1000;
    opacity: 0;
    pointer-events: none;
    transform: translateY(10px);
    transition: all 0.3s var(--ease-out-expo);
}

.user-dropdown::before {
    content: '';
    position: absolute;
    top: -15px;
    left: 0;
    width: 100%;
    height: 15px;
    background: transparent;
}

.user-menu-wrapper:hover .user-dropdown.logged-in {
    display: flex;
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
}

.user-dropdown-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    color: var(--color-text-secondary);
    font-size: 0.9rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    transition: all 0.2s;
    cursor: pointer;
}

.user-dropdown-item:hover {
    background: rgba(var(--color-primary-rgb), 0.1);
    color: var(--color-primary);
}

.user-dropdown-item.logout {
    color: var(--color-error);
    border-top: 1px solid var(--color-border);
    margin-top: 4px;
    border-top-left-radius: 0;
    border-top-right-radius: 0;
}

/* --- Account Modal / Dashboard Layout --- */
.account-modal-container {
    display: grid;
    grid-template-columns: 260px 1fr;
    min-height: 500px;
}

.account-sidebar {
    background: rgba(255,255,255,0.02);
    border-right: 1px solid var(--color-border);
    padding: var(--space-xl) var(--space-md);
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.account-sidebar-btn {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 18px;
    width: 100%;
    border: none;
    background: none;
    color: var(--color-text-secondary);
    font-weight: 700;
    font-size: 0.95rem;
    border-radius: var(--radius-md);
    cursor: pointer;
    text-align: left;
    transition: all 0.3s;
}

.account-sidebar-btn:hover {
    background: rgba(var(--color-surface-hover), 0.5);
    color: var(--color-text-primary);
}

.account-sidebar-btn.active {
    background: var(--color-primary);
    color: var(--color-bg);
}

.account-content {
    padding: var(--space-2xl);
    max-height: 600px;
    overflow-y: auto;
}

.account-pane {
    display: none;
    animation: fadeInUp 0.4s var(--ease-out-expo);
}

.account-pane.active {
    display: block;
}

/* Order Cards */
.order-card {
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    margin-bottom: var(--space-lg);
    background: rgba(255,255,255,0.02);
}

.order-header {
    background: rgba(255,255,255,0.03);
    padding: 12px 20px;
    border-bottom: 1px solid var(--color-border);
    display: flex;
    justify-content: space-between;
    font-size: 0.85rem;
}

.order-body {
    padding: 20px;
}

.order-status {
    display: inline-block;
    padding: 4px 10px;
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 800;
    text-transform: uppercase;
}

.status-pending { background: rgba(var(--color-warning), 0.1); color: var(--color-warning); }
.status-shipped { background: rgba(var(--color-primary-rgb), 0.1); color: var(--color-primary); }
.status-completed, .status-delivered { background: rgba(var(--color-success), 0.1); color: var(--color-success); }
.status-cancelled { background: rgba(var(--color-error), 0.1); color: var(--color-error); }

/* Profile Detail Grids */
.info-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-2xl);
}

@media (max-width: 850px) {
    .account-modal-container { grid-template-columns: 1fr; }
    .account-sidebar { display: none; } /* On mobile we can use a select menu or different approach */
}

/* ---- CUSTOM NOTIFICATIONS & TOASTS ---- */
#toastContainer {
    position: fixed;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 11000;
    display: flex;
    flex-direction: column;
    gap: 10px;
    pointer-events: none;
}

.toast {
    min-width: 320px;
    padding: 16px 24px;
    border-radius: 14px;
    background: rgba(20, 24, 33, 0.9);
    backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: white;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    gap: 14px;
    animation: toastSlideDown 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275) forwards;
    pointer-events: auto;
    font-weight: 500;
}

.toast-success { border-left: 5px solid var(--color-success); }
.toast-error { border-left: 5px solid var(--color-error); }
.toast-info { border-left: 5px solid var(--color-primary); }

.toast-icon {
    font-size: 1.4rem;
}

@keyframes toastSlideDown {
    from { transform: translateY(-120%); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

.toast.fade-out {
    animation: toastFadeOut 0.4s ease forwards;
}

@keyframes toastFadeOut {
    to { transform: translateY(-30px); opacity: 0; }
}

/* ---- CUSTOM CONFIRM MODAL ---- */
#confirmOverlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(6px);
    z-index: 12000;
    display: none;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.4s ease;
}

#confirmOverlay.active {
    display: flex;
    opacity: 1;
}

.confirm-box {
    width: 90%;
    max-width: 420px;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: 24px;
    padding: 35px;
    text-align: center;
    transform: scale(0.8);
    transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    box-shadow: 0 30px 60px -12px rgba(0, 0, 0, 0.6);
}

#confirmOverlay.active .confirm-box {
    transform: scale(1);
}

.confirm-box h3 {
    margin-bottom: 12px;
    font-size: 1.5rem;
    color: white;
    font-weight: 800;
}

.confirm-box p {
    margin-bottom: 28px;
    opacity: 0.7;
    line-height: 1.6;
    font-size: 1rem;
}

.confirm-actions {
    display: flex;
    gap: 12px;
    justify-content: center;
}

.confirm-actions button {
    padding: 12px 28px;
    min-width: 120px;
    font-weight: 700;
    border-radius: 12px;
}

/* --- TOOLTIP SYSTEM --- */
.tooltip-container {
  position: relative;
  display: inline-flex;
  align-items: center;
  margin-left: 10px;
  cursor: help;
  vertical-align: middle;
}

.tooltip-icon {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  border: 1px solid var(--color-text-secondary);
  display: flex;
  justify-content: center;
  align-items: center;
  font-size: 11px;
  font-weight: 700;
  color: var(--color-text-secondary);
  transition: all 0.3s var(--ease-out-expo);
  opacity: 0.7;
}

.tooltip-container:hover .tooltip-icon {
  opacity: 1;
  border-color: var(--color-primary);
  color: var(--color-primary);
  background: rgba(var(--color-primary-rgb), 0.1);
  box-shadow: 0 0 10px rgba(var(--color-primary-rgb), 0.2);
}

.tooltip-box {
  position: absolute;
  bottom: calc(100% + 15px);
  left: 50%;
  transform: translateX(-50%) translateY(10px);
  width: 280px;
  background: rgba(15, 23, 42, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  padding: 14px 18px;
  border-radius: var(--radius-md);
  color: var(--color-text-primary);
  font-size: 12px;
  line-height: 1.6;
  box-shadow: var(--shadow-xl);
  pointer-events: none;
  opacity: 0;
  visibility: hidden;
  transition: all 0.25s var(--ease-out-expo);
  z-index: 1000;
  text-align: left;
}

.tooltip-container:hover .tooltip-box {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

.tooltip-box::after {
  content: '';
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  border-width: 6px;
  border-style: solid;
  border-color: rgba(15, 23, 42, 0.95) transparent transparent transparent;
}

@media (max-width: 768px) {
  .tooltip-box {
    width: 240px;
    left: auto;
    right: -20px;
    transform: translateY(10px);
  }
  .tooltip-container:hover .tooltip-box {
    transform: translateY(0);
  }
  .tooltip-box::after {
    left: auto;
    right: 25px;
  }
}