/* ========== CSS Custom Properties ========== */
:root {
  --primary: #db2777;
  --primary-light: #f472b6;
  --primary-dark: #be185d;
  --primary-50: #fdf2f8;
  --primary-100: #fce7f3;
  --primary-200: #fbcfe8;
  --secondary: #1e293b;
  --secondary-light: #334155;
  --secondary-dark: #0f172a;
  --white: #ffffff;
  --gray-50: #f8fafc;
  --gray-100: #f1f5f9;
  --gray-200: #e2e8f0;
  --gray-300: #cbd5e1;
  --gray-400: #94a3b8;
  --gray-500: #64748b;
  --gray-600: #475569;
  --gray-700: #334155;
  --gray-800: #1e293b;
  --gray-900: #0f172a;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
  --shadow-pink: 0 4px 14px rgba(219, 39, 119, 0.25);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 20px;
  --radius-full: 9999px;
  --transition: all 0.3s ease;
}

/* ========== Global Styles ========== */
html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  color: var(--gray-800);
  background-color: var(--white);
  overflow-x: hidden;
}

/* ========== Navbar ========== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--gray-200);
  transition: var(--transition);
}

.navbar.scrolled {
  box-shadow: var(--shadow-md);
  background: rgba(255, 255, 255, 0.98);
}

.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 1.5rem;
  height: 72px;
}

.navbar-brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--primary);
  text-decoration: none;
}

.navbar-brand i {
  font-size: 1.5rem;
}

.navbar-links {
  display: flex;
  align-items: center;
  gap: 2rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.navbar-links a {
  color: var(--gray-600);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.95rem;
  transition: var(--transition);
  position: relative;
}

.navbar-links a:hover,
.navbar-links a.active {
  color: var(--primary);
}

.navbar-links a.active::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
}

.navbar-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  color: var(--gray-700);
  cursor: pointer;
  padding: 0.5rem;
}

/* ========== Hero Section ========== */
.hero-section {
  padding-top: 120px;
  padding-bottom: 80px;
  background: linear-gradient(135deg, var(--primary-50) 0%, #fff1f2 50%, var(--white) 100%);
  text-align: center;
}

.hero-section h1 {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--gray-900);
  margin-bottom: 1rem;
}

.hero-section h1 span {
  color: var(--primary);
}

.hero-section .hero-subtitle {
  font-size: 1.125rem;
  color: var(--gray-500);
  margin-bottom: 2rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

/* Search Box */
.search-box-wrapper {
  max-width: 560px;
  margin: 0 auto 2.5rem;
  position: relative;
}

.search-box {
  display: flex;
  align-items: center;
  background: var(--white);
  border-radius: var(--radius-full);
  padding: 0.25rem 0.25rem 0.25rem 1.5rem;
  box-shadow: var(--shadow-lg), var(--shadow-pink);
  transition: var(--transition);
}

.search-box:focus-within {
  box-shadow: 0 0 0 3px rgba(219, 39, 119, 0.3), var(--shadow-xl);
}

.search-box i {
  color: var(--gray-400);
  font-size: 1.1rem;
}

.search-box input {
  flex: 1;
  border: none;
  outline: none;
  padding: 0.875rem 1rem;
  font-size: 1rem;
  color: var(--gray-800);
  background: transparent;
}

.search-box input::placeholder {
  color: var(--gray-400);
}

.search-box button {
  background: var(--primary);
  color: var(--white);
  border: none;
  padding: 0.75rem 1.75rem;
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
}

.search-box button:hover {
  background: var(--primary-dark);
  transform: translateY(-1px);
}

/* Quick Entry Tags */
.quick-tags {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.75rem;
  max-width: 600px;
  margin: 0 auto;
}

.quick-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.6rem 1.25rem;
  background: var(--white);
  border: 1.5px solid var(--primary-200);
  border-radius: var(--radius-full);
  color: var(--primary);
  font-weight: 500;
  font-size: 0.875rem;
  text-decoration: none;
  transition: var(--transition);
}

.quick-tag:hover {
  background: var(--primary);
  color: var(--white);
  border-color: var(--primary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-pink);
}

.quick-tag i {
  font-size: 0.9rem;
}

/* ========== Section Common ========== */
.section {
  padding: 80px 0;
}

.section-header {
  text-align: center;
  margin-bottom: 3rem;
}

.section-header h2 {
  font-size: 2rem;
  font-weight: 700;
  color: var(--gray-900);
  margin-bottom: 0.75rem;
}

.section-header p {
  color: var(--gray-500);
  font-size: 1.05rem;
  max-width: 560px;
  margin: 0 auto;
}

/* ========== Features Section ========== */
.features-section {
  background: var(--white);
}

.feature-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 2rem 1.75rem;
  text-align: center;
  border: 1px solid var(--primary-100);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  height: 100%;
}

.feature-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg), var(--shadow-pink);
  border-color: var(--primary);
}

.feature-card .feature-icon {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary-100), var(--primary-50));
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.25rem;
  font-size: 1.75rem;
  color: var(--primary);
}

.feature-card h3 {
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--gray-900);
  margin-bottom: 0.75rem;
}

.feature-card p {
  color: var(--gray-500);
  font-size: 0.9rem;
  line-height: 1.6;
}

/* ========== Stats Section ========== */
.stats-section {
  background: linear-gradient(135deg, var(--secondary) 0%, var(--secondary-dark) 100%);
  padding: 60px 0;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
}

.stat-item {
  text-align: center;
  padding: 1.5rem;
}

.stat-item .stat-number {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--primary-light);
  margin-bottom: 0.5rem;
}

.stat-item .stat-label {
  color: var(--gray-400);
  font-size: 0.95rem;
  font-weight: 500;
}

/* ========== Testimonials Section ========== */
.testimonials-section {
  background: var(--gray-50);
}

.testimonial-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 2rem;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--gray-200);
  transition: var(--transition);
  height: 100%;
}

.testimonial-card:hover {
  box-shadow: var(--shadow-lg);
  border-color: var(--primary-200);
}

.testimonial-card .testimonial-stars {
  color: #f59e0b;
  font-size: 0.9rem;
  margin-bottom: 1rem;
}

.testimonial-card .testimonial-text {
  color: var(--gray-600);
  font-size: 0.95rem;
  line-height: 1.7;
  margin-bottom: 1.5rem;
  font-style: italic;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.testimonial-author img {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  object-fit: cover;
}

.testimonial-author .author-name {
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--gray-800);
}

.testimonial-author .author-role {
  font-size: 0.8rem;
  color: var(--gray-400);
}

/* ========== FAQ Section ========== */
.faq-section {
  background: var(--white);
}

/* FAQ Filter Tabs */
.faq-filters {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.5rem;
  margin-bottom: 2rem;
}

.faq-filter-btn {
  padding: 0.5rem 1.25rem;
  border-radius: var(--radius-full);
  border: 1.5px solid var(--gray-200);
  background: var(--white);
  color: var(--gray-600);
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
}

.faq-filter-btn:hover {
  border-color: var(--primary);
  color: var(--primary);
}

.faq-filter-btn.active {
  background: var(--primary);
  color: var(--white);
  border-color: var(--primary);
}

/* FAQ Items */
.faq-list {
  max-width: 768px;
  margin: 0 auto;
}

.faq-item {
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-md);
  margin-bottom: 0.75rem;
  overflow: hidden;
  transition: var(--transition);
  background: var(--white);
}

.faq-item:hover {
  border-color: var(--primary-200);
}

.faq-item.active {
  border-color: var(--primary);
  box-shadow: var(--shadow-pink);
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.125rem 1.5rem;
  cursor: pointer;
  font-weight: 600;
  color: var(--gray-800);
  font-size: 0.95rem;
  gap: 1rem;
  border: none;
  background: none;
  width: 100%;
  text-align: left;
}

.faq-question i.faq-arrow {
  color: var(--gray-400);
  font-size: 0.8rem;
  transition: var(--transition);
  flex-shrink: 0;
}

.faq-item.active .faq-question i.faq-arrow {
  transform: rotate(180deg);
  color: var(--primary);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease, padding 0.35s ease;
}

.faq-item.active .faq-answer {
  max-height: 300px;
}

.faq-answer-inner {
  padding: 0 1.5rem 1.25rem;
  color: var(--gray-600);
  font-size: 0.9rem;
  line-height: 1.7;
}

/* ========== CTA Section ========== */
.cta-section {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  padding: 70px 0;
  text-align: center;
  color: var(--white);
}

.cta-section h2 {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

.cta-section p {
  font-size: 1.05rem;
  opacity: 0.9;
  margin-bottom: 2rem;
  max-width: 500px;
  margin-left: auto;
  margin-right: auto;
}

.cta-buttons {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1rem;
}

.btn-cta-primary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.875rem 2rem;
  background: var(--white);
  color: var(--primary);
  border-radius: var(--radius-full);
  font-weight: 600;
  text-decoration: none;
  transition: var(--transition);
}

.btn-cta-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
}

.btn-cta-secondary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.875rem 2rem;
  background: transparent;
  color: var(--white);
  border: 2px solid rgba(255, 255, 255, 0.5);
  border-radius: var(--radius-full);
  font-weight: 600;
  text-decoration: none;
  transition: var(--transition);
}

.btn-cta-secondary:hover {
  background: rgba(255, 255, 255, 0.15);
  border-color: var(--white);
}

/* ========== Footer ========== */
.footer {
  background: var(--secondary-dark);
  color: var(--gray-400);
  padding: 50px 0 30px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 2rem;
  margin-bottom: 2.5rem;
}

.footer-brand h3 {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 0.75rem;
}

.footer-brand p {
  font-size: 0.875rem;
  line-height: 1.6;
  color: var(--gray-500);
}

.footer-col h4 {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--white);
  margin-bottom: 1rem;
}

.footer-col ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-col ul li {
  margin-bottom: 0.6rem;
}

.footer-col ul li a {
  color: var(--gray-500);
  text-decoration: none;
  font-size: 0.875rem;
  transition: var(--transition);
}

.footer-col ul li a:hover {
  color: var(--primary-light);
}

.footer-bottom {
  border-top: 1px solid var(--gray-700);
  padding-top: 1.5rem;
  text-align: center;
  font-size: 0.85rem;
  color: var(--gray-500);
}

/* ========== Download Page ========== */
.download-hero {
  padding-top: 120px;
  padding-bottom: 60px;
  background: linear-gradient(135deg, var(--primary-50) 0%, var(--white) 100%);
  text-align: center;
}

.download-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 2.5rem 2rem;
  text-align: center;
  border: 2px solid var(--gray-200);
  transition: var(--transition);
  height: 100%;
}

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

.download-card .download-icon {
  font-size: 3rem;
  color: var(--primary);
  margin-bottom: 1.25rem;
}

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

.download-card p {
  color: var(--gray-500);
  font-size: 0.9rem;
  margin-bottom: 1.5rem;
}

.btn-download {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 2rem;
  background: var(--primary);
  color: var(--white);
  border-radius: var(--radius-full);
  font-weight: 600;
  text-decoration: none;
  transition: var(--transition);
}

.btn-download:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-pink);
}

/* ========== About Page ========== */
.about-hero {
  padding-top: 120px;
  padding-bottom: 60px;
  background: linear-gradient(135deg, var(--primary-50) 0%, var(--white) 100%);
}

.about-image {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.about-image img {
  width: 100%;
  height: auto;
  display: block;
}

/* ========== Contact Page ========== */
.contact-hero {
  padding-top: 120px;
  padding-bottom: 60px;
  background: linear-gradient(135deg, var(--primary-50) 0%, var(--white) 100%);
}

.contact-info-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 2rem;
  border: 1px solid var(--primary-100);
  text-align: center;
  transition: var(--transition);
  height: 100%;
}

.contact-info-card:hover {
  box-shadow: var(--shadow-lg);
  border-color: var(--primary);
}

.contact-info-card .contact-icon {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--primary-100);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1rem;
  font-size: 1.25rem;
  color: var(--primary);
}

.contact-form {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 2rem;
  border: 1px solid var(--gray-200);
  box-shadow: var(--shadow-sm);
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-md);
  font-size: 0.95rem;
  color: var(--gray-800);
  transition: var(--transition);
  outline: none;
  margin-bottom: 1rem;
}

.contact-form input:focus,
.contact-form textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(219, 39, 119, 0.15);
}

.contact-form button {
  width: 100%;
  padding: 0.875rem;
  background: var(--primary);
  color: var(--white);
  border: none;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  transition: var(--transition);
}

.contact-form button:hover {
  background: var(--primary-dark);
}

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

.animate-fadeInUp {
  animation: fadeInUp 0.6s ease forwards;
}

@keyframes pulse {
  0%, 100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.05);
  }
}

.animate-pulse-slow {
  animation: pulse 3s ease-in-out infinite;
}

/* ========== Responsive ========== */
@media (max-width: 1024px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }

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

@media (max-width: 768px) {
  .navbar-links {
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    background: var(--white);
    flex-direction: column;
    padding: 2rem;
    gap: 1.5rem;
    box-shadow: var(--shadow-lg);
    transform: translateY(-150%);
    transition: transform 0.35s ease;
    z-index: 999;
  }

  .navbar-links.open {
    transform: translateY(0);
  }

  .navbar-toggle {
    display: block;
  }

  .hero-section h1 {
    font-size: 1.75rem;
  }

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

  .section {
    padding: 50px 0;
  }

  .section-header h2 {
    font-size: 1.5rem;
  }

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

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
  }

  .stat-item .stat-number {
    font-size: 1.75rem;
  }

  .download-card {
    margin-bottom: 1.5rem;
  }

  .search-box button {
    padding: 0.75rem 1.25rem;
    font-size: 0.85rem;
  }
}

@media (max-width: 480px) {
  .hero-section h1 {
    font-size: 1.5rem;
  }

  .search-box {
    padding: 0.2rem 0.2rem 0.2rem 1rem;
  }

  .search-box input {
    font-size: 0.875rem;
    padding: 0.75rem 0.5rem;
  }

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

  .quick-tags {
    gap: 0.5rem;
  }

  .quick-tag {
    padding: 0.5rem 1rem;
    font-size: 0.8rem;
  }
}