/* ============================================
   CuteeYeaquarium — Global Stylesheet
   Dark Theme | B2B Professional | Aquarium Wholesale
   ============================================ */

/* ---------- CSS Variables ---------- */
:root {
  /* Dark theme palette */
  --bg-primary: #0a0e17;
  --bg-secondary: #111827;
  --bg-tertiary: #1a2332;
  --bg-card: #151d2b;
  --bg-card-hover: #1c2739;
  --bg-elevated: #1e293b;

  /* Ocean blue accent system */
  --accent-primary: #0ea5e9;
  --accent-primary-dark: #0284c7;
  --accent-primary-light: #38bdf8;
  --accent-glow: rgba(14, 165, 233, 0.15);
  --accent-glow-strong: rgba(14, 165, 233, 0.3);
  --accent-secondary: #06b6d4;
  --accent-gradient: linear-gradient(135deg, #0ea5e9 0%, #06b6d4 100%);
  --accent-gradient-hover: linear-gradient(135deg, #38bdf8 0%, #22d3ee 100%);

  /* Text colors */
  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --text-accent: #38bdf8;

  /* Borders */
  --border-subtle: rgba(148, 163, 184, 0.1);
  --border-medium: rgba(148, 163, 184, 0.2);
  --border-accent: rgba(14, 165, 233, 0.3);

  /* Status colors */
  --success: #22c55e;
  --warning: #f59e0b;
  --error: #ef4444;

  /* Spacing */
  --section-padding: 100px 0;
  --container-max: 1280px;
  --container-narrow: 960px;

  /* Typography */
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-heading: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-base: 0.3s ease;
  --transition-slow: 0.5s ease;

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.5);
  --shadow-xl: 0 20px 50px rgba(0, 0, 0, 0.6);
  --shadow-glow: 0 0 30px rgba(14, 165, 233, 0.2);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-primary);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.7;
  overflow-x: hidden;
}

a {
  color: var(--accent-primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

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

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

/* ---------- Container ---------- */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
}

.container--narrow {
  max-width: var(--container-narrow);
}

/* ---------- Section Spacing ---------- */
.section {
  padding: var(--section-padding);
}

.section--dark {
  background-color: var(--bg-secondary);
}

.section--gradient {
  background: linear-gradient(180deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
}

/* ---------- Section Headings ---------- */
.section-header {
  text-align: center;
  margin-bottom: 60px;
}

.section-label {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--accent-primary);
  background: var(--accent-glow);
  border: 1px solid var(--border-accent);
  padding: 6px 16px;
  border-radius: 50px;
  margin-bottom: 20px;
}

.section-title {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 4vw, 2.8rem);
  font-weight: 700;
  line-height: 1.2;
  color: var(--text-primary);
  margin-bottom: 16px;
}

.section-subtitle {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 680px;
  margin: 0 auto;
  line-height: 1.8;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  font-family: var(--font-primary);
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: 8px;
  border: none;
  cursor: pointer;
  transition: all var(--transition-base);
  text-align: center;
  white-space: nowrap;
}

.btn--primary {
  background: var(--accent-gradient);
  color: #fff;
  box-shadow: 0 4px 15px rgba(14, 165, 233, 0.3);
}

.btn--primary:hover {
  background: var(--accent-gradient-hover);
  box-shadow: 0 6px 25px rgba(14, 165, 233, 0.4);
  transform: translateY(-2px);
  color: #fff;
}

.btn--outline {
  background: transparent;
  color: var(--accent-primary);
  border: 2px solid var(--accent-primary);
}

.btn--outline:hover {
  background: var(--accent-glow);
  border-color: var(--accent-primary-light);
  color: var(--accent-primary-light);
}

.btn--white {
  background: #fff;
  color: var(--bg-primary);
}

.btn--white:hover {
  background: #f1f5f9;
  transform: translateY(-2px);
  color: var(--bg-primary);
}

.btn--sm {
  padding: 10px 20px;
  font-size: 0.85rem;
}

.btn--lg {
  padding: 18px 40px;
  font-size: 1.05rem;
}

/* ---------- Cards ---------- */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 12px;
  overflow: hidden;
  transition: all var(--transition-base);
}

.card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-accent);
  box-shadow: var(--shadow-glow);
  transform: translateY(-4px);
}

.card__image {
  width: 100%;
  aspect-ratio: 4/3;
  background: var(--bg-tertiary);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-size: 0.85rem;
  overflow: hidden;
  position: relative;
}

.card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.card__body {
  padding: 24px;
}

.card__title {
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--text-primary);
}

.card__desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ---------- Grids ---------- */
.grid {
  display: grid;
  gap: 24px;
}

.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }

@media (max-width: 1024px) {
  .grid--4 { grid-template-columns: repeat(2, 1fr); }
  .grid--3 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .grid--2,
  .grid--3,
  .grid--4 { grid-template-columns: 1fr; }
}

/* ---------- Navigation ---------- */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(10, 14, 23, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-subtle);
  transition: all var(--transition-base);
}

.navbar.scrolled {
  background: rgba(10, 14, 23, 0.95);
  box-shadow: var(--shadow-md);
}

.navbar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
}

.navbar__brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
}

.navbar__brand-icon {
  width: 36px;
  height: 36px;
  background: var(--accent-gradient);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
}

.navbar__brand span {
  color: var(--accent-primary);
}

.navbar__links {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
}

.navbar__link {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color var(--transition-fast);
  position: relative;
}

.navbar__link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent-primary);
  transition: width var(--transition-base);
}

.navbar__link:hover,
.navbar__link.active {
  color: var(--text-primary);
}

.navbar__link:hover::after,
.navbar__link.active::after {
  width: 100%;
}

.navbar__cta {
  margin-left: 16px;
}

/* Mobile menu toggle */
.navbar__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.navbar__toggle span {
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: all var(--transition-base);
}

@media (max-width: 960px) {
  .navbar__toggle {
    display: flex;
  }

  .navbar__links {
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(10, 14, 23, 0.98);
    backdrop-filter: blur(20px);
    flex-direction: column;
    justify-content: flex-start;
    padding: 40px 24px;
    gap: 0;
    transform: translateX(100%);
    transition: transform var(--transition-base);
    overflow-y: auto;
  }

  .navbar__links.open {
    transform: translateX(0);
  }

  .navbar__link {
    font-size: 1.1rem;
    padding: 16px 0;
    border-bottom: 1px solid var(--border-subtle);
    width: 100%;
  }

  .navbar__link::after {
    display: none;
  }

  .navbar__cta {
    margin: 24px 0 0 0;
    margin-left: 0;
  }

  .navbar__cta .btn {
    width: 100%;
    justify-content: center;
  }
}

/* ---------- Footer ---------- */
.footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-subtle);
  padding: 80px 0 0;
}

.footer__grid {
  display: grid;
  grid-template-columns: 2fr repeat(3, 1fr);
  gap: 48px;
  margin-bottom: 60px;
}

@media (max-width: 768px) {
  .footer__grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
}

@media (max-width: 480px) {
  .footer__grid {
    grid-template-columns: 1fr;
  }
}

.footer__brand p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-top: 16px;
  line-height: 1.8;
  max-width: 320px;
}

.footer__heading {
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--text-primary);
  margin-bottom: 20px;
}

.footer__links {
  list-style: none;
}

.footer__links li {
  margin-bottom: 12px;
}

.footer__links a {
  color: var(--text-secondary);
  font-size: 0.9rem;
  transition: color var(--transition-fast);
}

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

.footer__contact-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 14px;
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.footer__contact-icon {
  flex-shrink: 0;
  margin-top: 2px;
  font-size: 1rem;
}

.footer__bottom {
  border-top: 1px solid var(--border-subtle);
  padding: 24px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.85rem;
  color: var(--text-muted);
}

@media (max-width: 768px) {
  .footer__bottom {
    flex-direction: column;
    gap: 12px;
    text-align: center;
  }
}

/* ---------- Breadcrumbs ---------- */
.breadcrumbs {
  padding: 100px 0 20px;
  border-bottom: 1px solid var(--border-subtle);
}

.breadcrumbs__list {
  display: flex;
  align-items: center;
  gap: 8px;
  list-style: none;
  font-size: 0.85rem;
  flex-wrap: wrap;
}

.breadcrumbs__list li:not(:last-child)::after {
  content: '/';
  margin-left: 8px;
  color: var(--text-muted);
}

.breadcrumbs__list a {
  color: var(--text-muted);
}

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

.breadcrumbs__list li:last-child {
  color: var(--text-secondary);
}

/* ---------- Page Header ---------- */
.page-header {
  padding: 140px 0 60px;
  text-align: center;
  border-bottom: 1px solid var(--border-subtle);
  background: linear-gradient(180deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
}

.page-header__label {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--accent-primary);
  background: var(--accent-glow);
  border: 1px solid var(--border-accent);
  padding: 6px 16px;
  border-radius: 50px;
  margin-bottom: 20px;
}

.page-header__title {
  font-size: clamp(2.2rem, 5vw, 3.2rem);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 16px;
}

.page-header__desc {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 640px;
  margin: 0 auto;
  line-height: 1.8;
}

/* ---------- Feature List ---------- */
.feature-list {
  list-style: none;
}

.feature-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 16px;
  color: var(--text-secondary);
  font-size: 0.95rem;
}

.feature-list li::before {
  content: '\2713';
  color: var(--accent-primary);
  font-weight: 700;
  flex-shrink: 0;
  margin-top: 2px;
}

/* ---------- Stats Row ---------- */
.stats-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  padding: 60px 0;
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
  margin: 60px 0;
}

.stat-item {
  text-align: center;
}

.stat-number {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--accent-primary);
  line-height: 1;
  margin-bottom: 8px;
}

.stat-label {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

@media (max-width: 768px) {
  .stats-row {
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
  }
}

/* ---------- Form Styles ---------- */
.form-group {
  margin-bottom: 20px;
}

.form-label {
  display: block;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: 12px 16px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-medium);
  border-radius: 8px;
  color: var(--text-primary);
  font-family: var(--font-primary);
  font-size: 0.95rem;
  transition: border-color var(--transition-fast);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  outline: none;
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

.form-textarea {
  resize: vertical;
  min-height: 120px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

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

/* ---------- Floating WhatsApp Button ---------- */
.whatsapp-float {
  position: fixed;
  bottom: 28px;
  right: 28px;
  z-index: 999;
  width: 60px;
  height: 60px;
  background: #25D366;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4);
  transition: all var(--transition-base);
  font-size: 1.8rem;
  color: #fff;
}

.whatsapp-float:hover {
  transform: scale(1.1);
  box-shadow: 0 6px 30px rgba(37, 211, 102, 0.5);
  color: #fff;
}

@media (max-width: 768px) {
  .whatsapp-float {
    bottom: 20px;
    right: 20px;
    width: 52px;
    height: 52px;
    font-size: 1.5rem;
  }
}

/* ---------- Badge ---------- */
.badge {
  display: inline-block;
  padding: 4px 12px;
  font-size: 0.75rem;
  font-weight: 600;
  border-radius: 50px;
  letter-spacing: 0.5px;
}

.badge--accent {
  background: var(--accent-glow);
  color: var(--accent-primary);
  border: 1px solid var(--border-accent);
}

/* ---------- Comparison Table ---------- */
.comparison-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

.comparison-table th,
.comparison-table td {
  padding: 14px 18px;
  text-align: left;
  border-bottom: 1px solid var(--border-subtle);
}

.comparison-table th {
  background: var(--bg-tertiary);
  color: var(--text-primary);
  font-weight: 600;
  font-size: 0.85rem;
  letter-spacing: 0.5px;
}

.comparison-table td {
  color: var(--text-secondary);
}

.comparison-table tr:hover td {
  background: var(--accent-glow);
}

/* ---------- Accordion (for FAQ) ---------- */
.accordion {
  border: 1px solid var(--border-subtle);
  border-radius: 10px;
  overflow: hidden;
  margin-bottom: 12px;
}

.accordion__trigger {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  background: var(--bg-card);
  border: none;
  color: var(--text-primary);
  font-family: var(--font-primary);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: background var(--transition-fast);
  text-align: left;
}

.accordion__trigger:hover {
  background: var(--bg-card-hover);
}

.accordion__icon {
  font-size: 1.3rem;
  color: var(--accent-primary);
  transition: transform var(--transition-base);
  flex-shrink: 0;
  margin-left: 16px;
}

.accordion.open .accordion__icon {
  transform: rotate(45deg);
}

.accordion__content {
  display: none;
  padding: 0 24px 20px;
  background: var(--bg-card);
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.8;
  border-top: 1px solid var(--border-subtle);
}

.accordion.open .accordion__content {
  display: block;
}

/* ---------- Step Indicator ---------- */
.steps {
  counter-reset: step;
}

.step {
  position: relative;
  padding-left: 60px;
  margin-bottom: 32px;
  counter-increment: step;
}

.step::before {
  content: counter(step);
  position: absolute;
  left: 0;
  top: 0;
  width: 40px;
  height: 40px;
  background: var(--accent-gradient);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.95rem;
  color: #fff;
}

.step-title {
  font-weight: 600;
  font-size: 1.05rem;
  color: var(--text-primary);
  margin-bottom: 6px;
}

.step-desc {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

/* ---------- Image Placeholder ---------- */
.img-placeholder {
  background: var(--bg-tertiary);
  border: 1px dashed var(--border-medium);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-size: 0.8rem;
  text-align: center;
  padding: 20px;
}

.img-placeholder--large {
  width: 100%;
  aspect-ratio: 16/9;
}

.img-placeholder--medium {
  width: 100%;
  aspect-ratio: 4/3;
}

.img-placeholder--square {
  width: 100%;
  aspect-ratio: 1/1;
}

/* ---------- Scroll Animations ---------- */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ---------- Utility Classes ---------- */
.text-center { text-align: center; }
.text-accent { color: var(--accent-primary); }
.mt-1 { margin-top: 16px; }
.mt-2 { margin-top: 24px; }
.mt-3 { margin-top: 40px; }
.mt-4 { margin-top: 60px; }
.mb-1 { margin-bottom: 16px; }
.mb-2 { margin-bottom: 24px; }
.mb-3 { margin-bottom: 40px; }
.gap-2 { gap: 24px; }

/* ---------- Print Styles ---------- */
@media print {
  .navbar, .whatsapp-float, .footer { display: none; }
  body { background: #fff; color: #000; }
}