/* style.css - Professional E-commerce Design */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

:root {
  --primary: #6366f1;
  --primary-dark: #4f46e5;
  --secondary: #22c55e;
  --dark: #0f172a;
  --dark-light: #1e293b;
  --gray-50: #f9fafb;
  --gray-100: #f3f4f6;
  --gray-200: #e5e7eb;
  --gray-300: #d1d5db;
  --gray-400: #9ca3af;
  --gray-500: #6b7280;
  --gray-600: #4b5563;
  --gray-700: #374151;
  --gray-800: #1f2937;
  --gray-900: #111827;
  --white: #ffffff;
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  --radius-sm: 8px;
  --radius: 12px;
  --radius-lg: 16px;
  --radius-xl: 20px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
  scroll-behavior: smooth;
}

body {
  background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
  color: var(--gray-900);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
}

/* Layout */
.container {
  width: 90%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1rem;
}

/* Header */
header {
  background: linear-gradient(135deg, var(--dark) 0%, var(--dark-light) 100%);
  color: var(--gray-200);
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 0;
  gap: 2rem;
}

.nav-logo {
  font-size: 1.4rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  cursor: pointer;
  transition: var(--transition);
}

.nav-logo:hover {
  transform: translateY(-2px);
}

.nav-logo span {
  display: inline-block;
  padding: 0.25rem 0.65rem;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: var(--white);
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  box-shadow: 0 4px 12px rgba(99, 102, 241, 0.4);
}

.nav-links {
  display: flex;
  gap: 2rem;
  align-items: center;
}

.nav-links a {
  color: var(--gray-200);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
  position: relative;
  padding: 0.5rem 0;
  transition: var(--transition);
}

.nav-links a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  transition: width 0.3s ease;
}

.nav-links a:hover {
  color: var(--white);
}

.nav-links a:hover::after,
.nav-links a.active::after {
  width: 100%;
}

.nav-links a.active {
  color: var(--white);
  font-weight: 600;
}

.nav-cta {
  display: flex;
  gap: 0.75rem;
  align-items: center;
}

.btn {
  border-radius: 999px;
  border: none;
  padding: 0.6rem 1.4rem;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: var(--white);
  box-shadow: 0 10px 25px rgba(99, 102, 241, 0.4);
}

.btn-primary::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, var(--secondary), var(--primary));
  transition: left 0.4s ease;
  z-index: 0;
}

.btn-primary:hover::before {
  left: 0;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 15px 35px rgba(99, 102, 241, 0.5);
}

.btn-outline {
  background: rgba(255, 255, 255, 0.1);
  color: var(--white);
  border: 2px solid rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(10px);
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.15);
  border-color: rgba(255, 255, 255, 0.3);
  transform: translateY(-2px);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
}

/* Mobile nav */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 0.5rem;
  transition: var(--transition);
}

.nav-toggle span {
  width: 25px;
  height: 3px;
  background: var(--white);
  border-radius: 2px;
  transition: var(--transition);
}

.nav-toggle:hover span {
  background: var(--primary);
}

/* Responsive Design */
@media (max-width: 1024px) {
  .hero {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

  .hero-image-wrapper {
    order: -1;
  }

  .about-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
}

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

  .nav-toggle {
    display: flex;
  }

  .navbar.nav-open {
    flex-direction: column;
    align-items: flex-start;
  }

  .navbar.nav-open .nav-links,
  .navbar.nav-open .nav-cta {
    display: flex;
    flex-direction: column;
    width: 100%;
    padding-top: 1rem;
    gap: 1rem;
  }

  .navbar.nav-open .nav-links a {
    padding: 0.75rem 0;
    width: 100%;
  }

  .navbar.nav-open .nav-cta {
    padding-bottom: 0.5rem;
  }

  .navbar.nav-open .btn {
    width: 100%;
    text-align: center;
  }

  .hero {
    padding: 2.5rem 0;
  }

  .hero-title {
    font-size: 2rem;
  }

  .hero-subtitle {
    font-size: 0.95rem;
  }

  .section {
    padding: 3rem 0;
  }

  .section-title {
    font-size: 1.5rem;
  }

  .section-header {
    flex-direction: column;
    align-items: flex-start;
  }

  .product-grid {
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 1.5rem;
  }

  .auth-card {
    padding: 2rem;
  }

  .auth-header h1 {
    font-size: 1.5rem;
  }

  .legal-hero h1 {
    font-size: 2rem;
  }

  .legal-card {
    padding: 1.5rem;
  }
}

@media (max-width: 480px) {
  .container {
    width: 95%;
  }

  .hero-title {
    font-size: 1.75rem;
  }

  .hero-actions {
    flex-direction: column;
    width: 100%;
  }

  .hero-actions .btn {
    width: 100%;
  }

  .product-grid {
    grid-template-columns: 1fr;
  }

  .about-list {
    grid-template-columns: 1fr;
  }

  .footer-top {
    flex-direction: column;
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
}

/* Utility Classes */
.text-center {
  text-align: center;
}

.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }

.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }

/* Loading Animation */
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

.loading {
  animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

/* Smooth Scrollbar */
::-webkit-scrollbar {
  width: 10px;
}

::-webkit-scrollbar-track {
  background: var(--gray-100);
}

::-webkit-scrollbar-thumb {
  background: var(--gray-400);
  border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--gray-500);
}

/* Hero */
.hero {
  padding: 4rem 0 3.5rem;
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.1), rgba(34, 197, 94, 0.1));
  padding: 0.4rem 1rem;
  border-radius: 999px;
  font-size: 0.85rem;
  color: var(--primary);
  border: 1px solid rgba(99, 102, 241, 0.2);
  font-weight: 600;
  animation: fadeInUp 0.6s ease;
}

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

.hero-title {
  font-size: 2.8rem;
  line-height: 1.15;
  margin: 1rem 0;
  color: var(--gray-900);
  font-weight: 800;
  letter-spacing: -0.02em;
  animation: fadeInUp 0.6s ease 0.1s both;
}

.hero-highlight {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  color: var(--gray-600);
  font-size: 1.05rem;
  max-width: 36rem;
  line-height: 1.7;
  animation: fadeInUp 0.6s ease 0.2s both;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 2rem;
  align-items: center;
  animation: fadeInUp 0.6s ease 0.3s both;
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 2rem;
  margin-top: 2rem;
  font-size: 0.85rem;
  color: var(--gray-500);
  animation: fadeInUp 0.6s ease 0.4s both;
}

.hero-meta-item {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.hero-meta-item span {
  display: block;
  font-weight: 700;
  color: var(--gray-900);
  font-size: 1.1rem;
}

.hero-image-wrapper {
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.08), rgba(34, 197, 94, 0.08));
  border-radius: 24px;
  padding: 2rem;
  position: relative;
  box-shadow: var(--shadow-xl);
  border: 1px solid rgba(226, 232, 240, 0.8);
  animation: fadeInUp 0.6s ease 0.5s both;
}

.hero-image {
  width: 100%;
  border-radius: var(--radius-lg);
  display: block;
  object-fit: cover;
  transition: var(--transition);
}

.hero-image:hover {
  transform: scale(1.02);
}

.hero-stats-card {
  position: absolute;
  left: -14px;
  top: 18%;
  background: var(--gray-900);
  color: var(--white);
  padding: 0.8rem 1rem;
  border-radius: 999px;
  font-size: 0.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  box-shadow: var(--shadow-xl);
  animation: float 3s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

.hero-stats-card span:first-child {
  font-size: 0.65rem;
  opacity: 0.7;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.hero-stats-card span:last-child {
  font-weight: 700;
  letter-spacing: 0.02em;
  font-size: 1rem;
}

.hero-badge-card {
  position: absolute;
  right: -12px;
  bottom: 12%;
  background: var(--white);
  padding: 0.8rem 1rem;
  border-radius: var(--radius);
  font-size: 0.75rem;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--gray-200);
  animation: float 3s ease-in-out infinite 1.5s;
}

.hero-badge-pill {
  background: rgba(34, 197, 94, 0.1);
  color: #15803d;
  border-radius: 999px;
  padding: 0.15rem 0.6rem;
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 600;
}

/* Sections */
.section {
  padding: 4rem 0;
}

.section-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 2.5rem;
  gap: 2rem;
}

.section-title {
  font-size: 2rem;
  color: var(--gray-900);
  font-weight: 800;
  letter-spacing: -0.02em;
}

.section-subtitle {
  font-size: 1rem;
  color: var(--gray-600);
  line-height: 1.6;
  margin-top: 0.5rem;
}

/* Product grid */
.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 2rem;
}

.card {
  background: var(--white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  display: flex;
  flex-direction: column;
  transition: var(--transition);
  border: 1px solid var(--gray-200);
  cursor: pointer;
}

.card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
  border-color: rgba(99, 102, 241, 0.3);
}

.card-image-wrapper {
  position: relative;
  overflow: hidden;
  background: var(--gray-100);
  aspect-ratio: 4/3;
}

.card-image {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
  transition: var(--transition);
}

.card:hover .card-image {
  transform: scale(1.08);
}

.card-badge {
  position: absolute;
  left: 12px;
  top: 12px;
  font-size: 0.7rem;
  background: rgba(15, 23, 42, 0.9);
  color: var(--white);
  padding: 0.3rem 0.7rem;
  border-radius: 999px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  backdrop-filter: blur(10px);
}

.card-body {
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  flex: 1;
}

.card-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--gray-900);
  line-height: 1.4;
}

.card-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.9rem;
  color: var(--gray-600);
  margin-top: auto;
}

.price {
  font-weight: 800;
  color: var(--gray-900);
  font-size: 1.15rem;
}

.tag {
  font-size: 0.75rem;
  padding: 0.2rem 0.6rem;
  border-radius: 999px;
  background: rgba(99, 102, 241, 0.1);
  color: var(--primary);
  font-weight: 600;
}

/* About blocks */
.about-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 3rem;
  align-items: center;
}

.about-list {
  margin-top: 1.5rem;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.25rem;
}

.about-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 0.8rem;
  border-radius: 999px;
  border: 2px dashed rgba(99, 102, 241, 0.3);
  font-size: 0.85rem;
  color: var(--gray-700);
  font-weight: 600;
  transition: var(--transition);
  background: var(--white);
}

.about-pill:hover {
  border-color: var(--primary);
  background: rgba(99, 102, 241, 0.05);
  transform: translateY(-2px);
}

/* Forms */
.auth-wrapper {
  min-height: calc(100vh - 200px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 3rem 0;
}

.auth-card {
  background: var(--white);
  border-radius: var(--radius-xl);
  padding: 3rem;
  width: 100%;
  max-width: 500px;
  box-shadow: var(--shadow-xl);
  border: 1px solid var(--gray-200);
  animation: fadeInUp 0.6s ease;
}

.auth-header {
  margin-bottom: 2rem;
  text-align: center;
}

.auth-header h1 {
  font-size: 2rem;
  color: var(--gray-900);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 0.5rem;
}

.auth-header p {
  font-size: 1rem;
  color: var(--gray-600);
  line-height: 1.6;
}

.form-group {
  margin-bottom: 1.25rem;
}

.form-group label {
  font-size: 0.9rem;
  color: var(--gray-700);
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 600;
}

.form-control {
  width: 100%;
  padding: 0.85rem 1rem;
  border-radius: var(--radius);
  border: 2px solid var(--gray-300);
  font-size: 0.95rem;
  outline: none;
  transition: var(--transition);
  background: var(--gray-50);
  font-family: inherit;
}

.form-control:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.1);
  background: var(--white);
  transform: translateY(-1px);
}

.form-control::placeholder {
  color: var(--gray-400);
}

.form-inline {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  font-size: 0.85rem;
  color: var(--gray-600);
  line-height: 1.6;
}

.form-inline input[type="checkbox"] {
  margin-top: 0.25rem;
  width: 18px;
  height: 18px;
  cursor: pointer;
  accent-color: var(--primary);
}

.auth-footer {
  margin-top: 1.5rem;
  font-size: 0.9rem;
  color: var(--gray-600);
  text-align: center;
}

.auth-footer a {
  color: var(--primary);
  font-weight: 600;
  transition: var(--transition);
}

.auth-footer a:hover {
  color: var(--primary-dark);
  text-decoration: underline;
}

/* Terms & Privacy */
.legal-hero {
  padding: 3rem 0 1.5rem;
  text-align: center;
}

.legal-hero h1 {
  font-size: 2.5rem;
  color: var(--gray-900);
  margin-bottom: 0.5rem;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.legal-hero p {
  color: var(--gray-600);
  font-size: 1rem;
}

.legal-card {
  background: var(--white);
  border-radius: var(--radius-xl);
  padding: 2.5rem;
  box-shadow: var(--shadow-lg);
  margin-bottom: 3rem;
  border: 1px solid var(--gray-200);
}

.legal-card h2 {
  font-size: 1.5rem;
  color: var(--gray-900);
  margin-bottom: 1rem;
  font-weight: 700;
}

.legal-card h3 {
  font-size: 1.15rem;
  color: var(--gray-900);
  margin: 1.5rem 0 0.75rem;
  font-weight: 700;
}

.legal-card p {
  font-size: 0.95rem;
  color: var(--gray-600);
  margin-bottom: 1rem;
  line-height: 1.7;
}

.legal-card ul {
  padding-left: 1.5rem;
  margin-bottom: 1rem;
}

.legal-card li {
  font-size: 0.95rem;
  color: var(--gray-600);
  margin-bottom: 0.5rem;
  line-height: 1.7;
}

.legal-card strong {
  color: var(--gray-900);
  font-weight: 600;
}

/* Footer */
footer {
  background: linear-gradient(135deg, var(--dark) 0%, var(--dark-light) 100%);
  color: var(--gray-400);
  margin-top: 4rem;
  padding: 2.5rem 0;
  box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.15);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-top {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 2rem;
  margin-bottom: 1.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-brand {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--white);
  letter-spacing: -0.01em;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  font-size: 0.9rem;
}

.footer-links a {
  color: var(--gray-400);
  text-decoration: none;
  transition: var(--transition);
  font-weight: 500;
}

.footer-links a:hover {
  color: var(--white);
  transform: translateY(-2px);
}

.footer-bottom {
  font-size: 0.85rem;
  color: var(--gray-500);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}