/* Dingdong Packaging - Main Stylesheet */
/* Version 2.0 - Optimized */

:root {
  --bg: #ffffff;
  --surface: #f8f9fb;
  --surface-dark: #eef0f4;
  --text: #111827;
  --text-secondary: #6b7280;
  --primary: #1e3a5f;
  --primary-dark: #152d4a;
  --primary-light: #2d5a8e;
  --accent: #d4a853;
  --accent-hover: #c49a48;
  --border: #e5e7eb;
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
  --shadow: 0 4px 6px rgba(0,0,0,0.07);
  --shadow-lg: 0 10px 25px rgba(0,0,0,0.1);
  --shadow-xl: 0 20px 40px rgba(0,0,0,0.12);
  --radius: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --container: 1200px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a {
  text-decoration: none;
  color: inherit;
}

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

/* Typography */
h1 {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.02em;
}

h2 {
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.01em;
}

h3 {
  font-size: 1.25rem;
  font-weight: 600;
}

p {
  color: var(--text-secondary);
  font-size: 1.05rem;
  line-height: 1.7;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  transition: var(--transition);
}

.site-header.scrolled {
  box-shadow: var(--shadow);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.logo {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--primary);
  letter-spacing: -0.01em;
  transition: var(--transition);
}

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

.logo:hover {
  transform: scale(1.02);
}

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

.nav-links a {
  color: var(--text);
  font-size: 0.9rem;
  font-weight: 500;
  transition: var(--transition);
  padding: 8px 0;
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent);
  transition: var(--transition);
}

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

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

.nav-links a.active {
  font-weight: 600;
}

.nav-cta {
  padding: 10px 20px !important;
  background: var(--primary);
  color: #fff !important;
  border-radius: var(--radius);
  font-weight: 600 !important;
  transition: var(--transition);
}

.nav-cta::after {
  display: none !important;
}

.nav-cta:hover {
  background: var(--primary-dark) !important;
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

/* Green CTA for better conversion */
.nav-cta-green {
  background: #059669 !important;
  box-shadow: 0 4px 15px rgba(5, 150, 105, 0.3) !important;
}

.nav-cta-green.active {
  background: #047857 !important;
  box-shadow: 0 4px 20px rgba(4, 120, 87, 0.4) !important;
  transform: translateY(-1px);
}

.nav-cta-green:hover {
  background: #047857 !important;
  box-shadow: 0 6px 20px rgba(5, 150, 105, 0.4) !important;
  transform: translateY(-2px);
}

/* Hero - Upgraded with Product Image Background */
.hero {
  position: relative;
  min-height: 90vh;
  display: flex;
  align-items: center;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, #1e3a5f 0%, #2d5a8e 50%, #1e3a5f 100%);
  z-index: 0;
}

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(30,58,95,0.92) 0%, rgba(30,58,95,0.85) 50%, rgba(30,58,95,0.75) 100%);
  z-index: 1;
}

.hero .container {
  position: relative;
  z-index: 2;
}

.hero-content {
  max-width: 700px;
}

.hero h1 {
  color: #fff;
  margin-bottom: 24px;
  text-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.hero-subtitle {
  font-size: 1.25rem;
  color: rgba(255,255,255,0.9);
  margin-bottom: 40px;
  line-height: 1.6;
}

.hero-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 18px 40px;
  background: var(--accent);
  color: #fff;
  border-radius: var(--radius);
  font-size: 1.1rem;
  font-weight: 600;
  transition: var(--transition);
  box-shadow: 0 4px 15px rgba(212,168,83,0.3);
}

.hero-cta:hover {
  background: var(--accent-hover);
  transform: translateY(-3px);
  box-shadow: 0 8px 30px rgba(212,168,83,0.4);
}

.hero-cta svg {
  transition: var(--transition);
}

.hero-cta:hover svg {
  transform: translateX(4px);
}

/* Primary CTA - Green for better conversion */
.hero-cta-primary {
  background: #059669;
  box-shadow: 0 4px 20px rgba(5, 150, 105, 0.4);
  font-size: 1.15rem;
  padding: 20px 44px;
}

.hero-cta-primary:hover {
  background: #047857;
  box-shadow: 0 8px 35px rgba(5, 150, 105, 0.5);
}

.hero-cta-sub {
  margin-top: 16px;
  font-size: 0.9rem;
  color: rgba(255,255,255,0.8);
  display: flex;
  align-items: center;
  gap: 16px;
}

.hero-stats {
  display: flex;
  gap: 60px;
  margin-top: 80px;
  padding-top: 40px;
  border-top: 1px solid rgba(255,255,255,0.2);
}

.hero-stat h3 {
  font-size: 2.5rem;
  font-weight: 800;
  color: #fff;
  margin-bottom: 8px;
}

.hero-stat p {
  font-size: 0.95rem;
  color: rgba(255,255,255,0.75);
  margin: 0;
}

/* Sections */
.section {
  padding: 100px 0;
}

.section-gray {
  background: var(--surface);
}

.section-label {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
  margin-bottom: 16px;
}

.section-header {
  text-align: center;
  margin-bottom: 64px;
}

.section-header h2 {
  margin-bottom: 16px;
}

.section-header p {
  max-width: 600px;
  margin: 0 auto;
}

/* About */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.about-image-wrapper {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-xl);
}

.about-image {
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: cover;
  transition: var(--transition);
}

.about-image-wrapper:hover .about-image {
  transform: scale(1.05);
}

.about-list {
  list-style: none;
  margin-top: 32px;
}

.about-list li {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 16px 0;
  border-bottom: 1px solid var(--border);
  font-size: 1rem;
  transition: var(--transition);
}

.about-list li:hover {
  padding-left: 8px;
  color: var(--primary);
}

.about-list li::before {
  content: '✓';
  color: var(--accent);
  font-weight: 700;
  font-size: 1.2rem;
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  background: rgba(212,168,83,0.1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Products - Enhanced */
.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
  gap: 32px;
}

.product-card {
  background: #fff;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border);
  transition: var(--transition);
  position: relative;
}

.product-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
  border-color: var(--accent);
}

.product-image-wrapper {
  position: relative;
  overflow: hidden;
  aspect-ratio: 4/3;
}

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

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

.product-quick-action {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 20px;
  background: linear-gradient(transparent, rgba(0,0,0,0.7));
  transform: translateY(100%);
  transition: var(--transition);
}

.product-card:hover .product-quick-action {
  transform: translateY(0);
}

.product-quick-btn {
  display: block;
  width: 100%;
  padding: 12px;
  background: var(--accent);
  color: #fff;
  text-align: center;
  border-radius: var(--radius);
  font-weight: 600;
  transition: var(--transition);
}

.product-quick-btn:hover {
  background: var(--accent-hover);
}

.product-body {
  padding: 28px;
}

.product-category {
  display: inline-block;
  padding: 6px 14px;
  background: var(--surface);
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--primary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.product-body h3 {
  margin-top: 16px;
  margin-bottom: 12px;
  font-size: 1.2rem;
}

.product-specs {
  display: flex;
  gap: 16px;
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}

.product-spec {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.product-spec strong {
  color: var(--text);
  display: block;
  font-size: 0.9rem;
}

.product-placeholder {
  background: var(--surface);
  border: 2px dashed var(--border);
  border-radius: var(--radius-lg);
  padding: 80px 40px;
  text-align: center;
  grid-column: 1/-1;
}

.product-placeholder-icon {
  font-size: 3rem;
  margin-bottom: 16px;
}

/* Trust Badges Section */
.trust-section {
  background: var(--surface-dark);
  padding: 60px 0;
}

.trust-grid {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 60px;
  flex-wrap: wrap;
}

.trust-item {
  text-align: center;
  opacity: 0.7;
  transition: var(--transition);
}

.trust-item:hover {
  opacity: 1;
  transform: scale(1.05);
}

.trust-icon {
  font-size: 2.5rem;
  margin-bottom: 8px;
}

.trust-label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
}

/* Certification Bar - 认证徽章栏 */
.cert-bar {
  background: #fff;
  padding: 40px 0;
  border-bottom: 1px solid var(--border);
}

.cert-title {
  text-align: center;
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 24px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.cert-logos {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 40px;
  flex-wrap: wrap;
}

.cert-logo-placeholder {
  width: 80px;
  height: 80px;
  background: var(--surface);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--text-secondary);
  border: 2px dashed var(--border);
  transition: var(--transition);
}

.cert-logo-placeholder:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(212,168,83,0.05);
}

.cert-logo-img {
  width: 80px;
  height: 80px;
  object-fit: contain;
  border-radius: var(--radius);
  transition: var(--transition);
  filter: grayscale(100%);
  opacity: 0.8;
}

.cert-logo-img:hover {
  filter: grayscale(0%);
  opacity: 1;
}

/* Certification Badges Row */
.cert-badges-row {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 32px;
  flex-wrap: wrap;
  margin-top: 40px;
  padding-top: 40px;
  border-top: 1px solid var(--border);
}

.cert-badge-img {
  height: 60px;
  width: auto;
  object-fit: contain;
  transition: var(--transition);
  filter: grayscale(100%);
  opacity: 0.8;
}

.cert-badge-img:hover {
  filter: grayscale(0%);
  opacity: 1;
  transform: scale(1.05);
}

@media (max-width: 768px) {
  .cert-badges-row {
    gap: 20px;
  }
  
  .cert-badge-img {
    height: 48px;
  }
  opacity: 1;
  transform: scale(1.05);
}

.cert-badge-text {
  text-align: center;
  padding: 0 20px;
}

.cert-badge-text strong {
  display: block;
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--primary);
  line-height: 1;
}

.cert-badge-text {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

/* Testimonials - 客户评价 */
.testimonials-section {
  background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
  padding: 100px 0;
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 32px;
}

.testimonial-card {
  background: #fff;
  padding: 40px;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  transition: var(--transition);
  border: 1px solid var(--border);
}

.testimonial-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
}

.testimonial-stars {
  color: #fbbf24;
  font-size: 1.25rem;
  letter-spacing: 2px;
  margin-bottom: 20px;
}

.testimonial-text {
  font-size: 1rem;
  line-height: 1.8;
  color: var(--text);
  margin-bottom: 24px;
  font-style: italic;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 16px;
}

.testimonial-avatar {
  width: 48px;
  height: 48px;
  background: var(--primary);
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.9rem;
}

.testimonial-author strong {
  display: block;
  color: var(--text);
  font-weight: 700;
}

.testimonial-author span {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

/* Why Us - Enhanced */
.why-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 32px;
}

.why-card {
  text-align: center;
  padding: 48px 32px;
  border-radius: var(--radius-lg);
  background: #fff;
  border: 1px solid var(--border);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.why-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: var(--accent);
  transform: scaleX(0);
  transition: var(--transition);
}

.why-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
  border-color: var(--accent);
}

.why-card:hover::before {
  transform: scaleX(1);
}

.why-icon {
  font-size: 3rem;
  margin-bottom: 24px;
  transition: var(--transition);
}

.why-card:hover .why-icon {
  transform: scale(1.1);
}

.why-card h3 {
  font-size: 1.15rem;
  margin-bottom: 12px;
}

.why-card p {
  font-size: 0.95rem;
  line-height: 1.6;
}

/* CTA Section */
.cta-section {
  background: var(--primary);
  color: #fff;
  text-align: center;
  padding: 100px 0;
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(255,255,255,0.03) 0%, transparent 50%);
  animation: rotate 30s linear infinite;
}

@keyframes rotate {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.cta-section .container {
  position: relative;
  z-index: 1;
}

.cta-section h2 {
  color: #fff;
  margin-bottom: 16px;
}

.cta-section > .container > p {
  color: rgba(255,255,255,0.85);
  margin-bottom: 40px;
  font-size: 1.1rem;
}

.cta-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 18px 40px;
  background: #fff;
  color: var(--primary);
  border-radius: var(--radius);
  font-size: 1.1rem;
  font-weight: 600;
  transition: var(--transition);
}

.cta-btn:hover {
  background: var(--accent);
  color: #fff;
  transform: translateY(-3px);
  box-shadow: 0 10px 30px rgba(0,0,0,0.2);
}

/* Green CTA Button */
.cta-btn-green {
  background: #059669;
  color: #fff;
  box-shadow: 0 4px 20px rgba(5, 150, 105, 0.4);
}

.cta-btn-green:hover {
  background: #047857;
  box-shadow: 0 8px 30px rgba(5, 150, 105, 0.5);
}

.cta-guarantee {
  margin-top: 20px;
  font-size: 0.9rem;
  color: rgba(255,255,255,0.8);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 24px;
}

/* Contact */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 64px;
  align-items: start;
}

.contact-info h3 {
  margin-bottom: 24px;
  font-size: 1.3rem;
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 20px;
  font-size: 1rem;
  color: var(--text-secondary);
}

.contact-item strong {
  color: var(--text);
  display: block;
  margin-bottom: 4px;
}

.contact-item-icon {
  font-size: 1.3rem;
  flex-shrink: 0;
}

.contact-form-wrapper {
  background: #fff;
  padding: 40px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.form-group {
  position: relative;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: 16px;
  border: 2px solid var(--border);
  border-radius: var(--radius);
  font-size: 1rem;
  font-family: inherit;
  transition: var(--transition);
  background: var(--surface);
}

.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--accent);
  background: #fff;
  box-shadow: 0 0 0 4px rgba(212,168,83,0.1);
}

.contact-form textarea {
  resize: vertical;
  min-height: 140px;
}

.btn-submit {
  padding: 18px 40px;
  background: var(--primary);
  color: #fff;
  border: none;
  border-radius: var(--radius);
  font-size: 1.05rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  align-self: flex-start;
}

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

.btn-submit:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

.form-success {
  color: #059669;
  font-weight: 600;
  margin-top: 16px;
  padding: 16px;
  background: rgba(5,150,105,0.1);
  border-radius: var(--radius);
  display: none;
}

/* Footer */
.site-footer {
  background: var(--surface-dark);
  border-top: 1px solid var(--border);
  padding: 64px 0 32px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}

.footer-col h3 {
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 20px;
  color: var(--text);
}

.footer-col p,
.footer-col a {
  font-size: 0.95rem;
  color: var(--text-secondary);
  text-decoration: none;
  display: block;
  margin-bottom: 12px;
  transition: var(--transition);
}

.footer-col a:hover {
  color: var(--primary);
  padding-left: 4px;
}

.footer-bottom {
  text-align: center;
  padding-top: 32px;
  border-top: 1px solid var(--border);
  font-size: 0.9rem;
  color: var(--text-secondary);
}

/* Social Links */
.social-links {
  display: flex;
  gap: 12px;
  margin-top: 16px;
}

.social-link {
  width: 40px;
  height: 40px;
  background: var(--surface);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  transition: var(--transition);
  border: 1px solid var(--border);
}

.social-link:hover {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
  transform: translateY(-3px);
}

.social-link svg {
  width: 20px;
  height: 20px;
}

/* Back to Top Button */
.back-to-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 50px;
  height: 50px;
  background: var(--primary);
  color: #fff;
  border: none;
  border-radius: 50%;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
  z-index: 99;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  box-shadow: var(--shadow-lg);
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
}

.back-to-top:hover {
  background: var(--accent);
  transform: translateY(-4px);
}

/* Loading Skeleton */
.skeleton {
  background: linear-gradient(90deg, var(--surface) 25%, var(--surface-dark) 50%, var(--surface) 75%);
  background-size: 200% 100%;
  animation: skeleton-loading 1.5s infinite;
  border-radius: var(--radius);
}

@keyframes skeleton-loading {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* Responsive */
@media (max-width: 1024px) {
  .about-grid,
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }
  
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
  
  .hero-stats {
    gap: 40px;
  }
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
  }
  
  .hero {
    min-height: auto;
    padding: 100px 0 60px;
  }
  
  .hero h1 {
    font-size: 2rem;
  }
  
  .hero-stats {
    flex-direction: column;
    gap: 24px;
    margin-top: 48px;
    padding-top: 32px;
  }
  
  .hero-stat h3 {
    font-size: 2rem;
  }
  
  .section {
    padding: 60px 0;
  }
  
  .products-grid {
    grid-template-columns: 1fr;
  }
  
  .why-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  
  .trust-grid {
    gap: 32px;
  }
  
  .contact-form-wrapper {
    padding: 24px;
  }
}

/* WhatsApp Widget */
.whatsapp-widget {
  position: fixed;
  bottom: 100px;
  right: 30px;
  width: 60px;
  height: 60px;
  background: #25D366;
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 12px rgba(37, 211, 102, 0.4);
  transition: var(--transition);
  z-index: 99;
  text-decoration: none;
}

.whatsapp-widget:hover {
  transform: scale(1.1);
  box-shadow: 0 6px 20px rgba(37, 211, 102, 0.5);
}

.whatsapp-tooltip {
  position: absolute;
  right: 70px;
  background: var(--text);
  color: #fff;
  padding: 8px 16px;
  border-radius: var(--radius);
  font-size: 0.85rem;
  font-weight: 500;
  white-space: nowrap;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
}

.whatsapp-widget:hover .whatsapp-tooltip {
  opacity: 1;
  visibility: visible;
}

@media (max-width: 768px) {
  .whatsapp-widget {
    width: 56px;
    height: 56px;
    bottom: 90px;
    right: 20px;
  }
  
  .whatsapp-tooltip {
    display: none;
  }
}

/* Cookie Banner */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--text);
  color: #fff;
  padding: 16px 24px;
  z-index: 1000;
  box-shadow: 0 -4px 20px rgba(0,0,0,0.15);
}

.cookie-content {
  max-width: var(--container);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}

.cookie-content p {
  color: rgba(255,255,255,0.9);
  font-size: 0.9rem;
  margin: 0;
}

.cookie-content a {
  color: var(--accent);
  text-decoration: underline;
}

.cookie-btn {
  background: var(--accent);
  color: var(--text);
  border: none;
  padding: 10px 24px;
  border-radius: var(--radius);
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
}

.cookie-btn:hover {
  background: var(--accent-hover);
  transform: translateY(-2px);
}

@media (max-width: 640px) {
  .cookie-content {
    flex-direction: column;
    text-align: center;
  }
  
  .cookie-btn {
    width: 100%;
  }
}

/* Enhanced Form Styles */
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.contact-form select {
  width: 100%;
  padding: 14px 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 1rem;
  background: var(--bg);
  color: var(--text);
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%236b7280' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
}

.contact-form select:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(30,58,95,0.1);
}

@media (max-width: 640px) {
  .form-row {
    grid-template-columns: 1fr;
  }
}

/* Print Styles */
@media print {
  .site-header,
  .back-to-top,
  .hero-cta,
  .cta-section,
  .cookie-banner {
    display: none;
  }
  
  .section {
    padding: 40px 0;
    page-break-inside: avoid;
  }
}