/* ==========================================================================
   PT SEMESTA NUSANTARA 88 — Design System
   ========================================================================== */

/* --- Google Fonts --- */
@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:ital,wght@0,400;0,500;0,600;0,700;0,800;1,400;1,700&family=Inter:wght@300;400;500;600;700&display=swap');

/* --- Custom Properties --- */
:root {
  /* Colors */
  --color-primary: #C5A55A;
  --color-primary-dark: #8B6914;
  --color-primary-light: #D4BA7A;
  --color-secondary: #4A3728;
  --color-bg: #F5F0E8;
  --color-surface: #FFFDF7;
  --color-accent: #8B6914;
  --color-neutral: #A89279;
  --color-white: #FFFFFF;
  --color-dark: #2C1E12;
  --color-text: #4A3728;
  --color-text-light: #7A6A5A;

  /* Gold Gradient — muted & warm, easy on eyes */
  --gradient-gold: linear-gradient(135deg, #B49A50 0%, #C9AD6A 40%, #A88D45 60%, #7D5F12 100%);
  --gradient-gold-subtle: linear-gradient(135deg, rgba(180, 154, 80, 0.1) 0%, rgba(125, 95, 18, 0.05) 100%);
  --gradient-dark: linear-gradient(180deg, rgba(44, 30, 18, 0.85) 0%, rgba(74, 55, 40, 0.6) 100%);

  /* Typography */
  --font-heading: 'Playfair Display', Georgia, serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;

  /* Spacing */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2.5rem;
  --space-xl: 4rem;
  --space-2xl: 6rem;
  --space-3xl: 8rem;

  /* Border radius */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 30px;
  --radius-full: 50%;

  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(74, 55, 40, 0.08);
  --shadow-md: 0 4px 20px rgba(74, 55, 40, 0.12);
  --shadow-lg: 0 8px 40px rgba(74, 55, 40, 0.16);
  --shadow-gold: 0 4px 16px rgba(180, 154, 80, 0.2);

  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;
  --transition-spring: 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);

  /* Container */
  --container-max: 1200px;
  --container-padding: 1.5rem;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-body);
  color: var(--color-text);
  background-color: var(--color-bg);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

ul,
ol {
  list-style: none;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-heading);
  color: var(--color-secondary);
  line-height: 1.3;
  font-weight: 700;
}

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

.section-padding {
  padding: var(--space-3xl) 0;
}

.text-gold {
  color: var(--color-primary);
}

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

/* Section Header */
.section-header {
  text-align: center;
  margin-bottom: var(--space-xl);
}

.section-subtitle {
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: var(--space-xs);
  display: block;
}

.section-title {
  font-size: clamp(2rem, 4vw, 3rem);
  color: var(--color-secondary);
  margin-bottom: var(--space-sm);
}

.section-divider {
  width: 80px;
  height: 3px;
  background: var(--gradient-gold);
  margin: var(--space-sm) auto;
  border-radius: 2px;
}

.section-desc {
  max-width: 640px;
  margin: var(--space-sm) auto 0;
  color: var(--color-text-light);
  font-size: 1.05rem;
}

/* Button */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.875rem 2rem;
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 600;
  border: none;
  border-radius: var(--radius-xl);
  cursor: pointer;
  transition: all var(--transition-normal);
  text-decoration: none;
}

.btn-primary {
  background: var(--gradient-gold);
  color: var(--color-white);
  box-shadow: var(--shadow-gold);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(180, 154, 80, 0.3);
}

.btn-outline {
  background: transparent;
  color: var(--color-white);
  border: 2px solid rgba(255, 255, 255, 0.5);
}

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

.btn-dark {
  background: var(--color-secondary);
  color: var(--color-white);
}

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

/* ==========================================================================
   NAVBAR
   ========================================================================== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  padding: 1rem 0;
  transition: all var(--transition-normal);
}

.navbar.scrolled {
  background: rgba(255, 253, 247, 0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: var(--shadow-sm);
  padding: 0.6rem 0;
}

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

.navbar-brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.navbar-brand img {
  height: 48px;
  width: auto;
  transition: height var(--transition-normal);
}

.navbar.scrolled .navbar-brand img {
  height: 40px;
}

.navbar-brand-text {
  display: flex;
  flex-direction: column;
}

.navbar-brand-name {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-white);
  line-height: 1.2;
  transition: color var(--transition-normal);
}

.navbar.scrolled .navbar-brand-name {
  color: var(--color-secondary);
}

.navbar-brand-tagline {
  font-size: 0.65rem;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.7);
  transition: color var(--transition-normal);
}

.navbar.scrolled .navbar-brand-tagline {
  color: var(--color-neutral);
}

.navbar-nav {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.nav-link {
  padding: 0.5rem 1rem;
  font-size: 0.9rem;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.85);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 2px;
  left: 50%;
  width: 0;
  height: 2px;
  background: var(--color-primary);
  transition: all var(--transition-normal);
  transform: translateX(-50%);
  border-radius: 1px;
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 50%;
}

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

.navbar.scrolled .nav-link {
  color: var(--color-text-light);
}

.navbar.scrolled .nav-link:hover {
  color: var(--color-secondary);
}

.navbar-cta {
  padding: 0.6rem 1.5rem;
  font-size: 0.85rem;
}

/* Hamburger */
.navbar-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 5px;
  z-index: 1001;
}

.navbar-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-white);
  border-radius: 2px;
  transition: all var(--transition-normal);
}

.navbar.scrolled .navbar-toggle span {
  background: var(--color-secondary);
}

.navbar-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.navbar-toggle.active span:nth-child(2) {
  opacity: 0;
}

.navbar-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* ==========================================================================
   HERO SECTION
   ========================================================================== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background-color: var(--color-dark);
}

.hero-bg {
  position: absolute;
  inset: 0;
  background-image: url('https://images.unsplash.com/photo-1559827260-dc66d52bef19?w=1920&q=80');
  background-size: cover;
  background-position: center;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg,
      rgba(44, 30, 18, 0.7) 0%,
      rgba(44, 30, 18, 0.5) 50%,
      rgba(44, 30, 18, 0.8) 100%);
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: var(--space-lg);
  max-width: 850px;
}

.hero-logo {
  width: 120px;
  height: auto;
  margin: 0 auto var(--space-md);
  filter: drop-shadow(0 4px 20px rgba(0, 0, 0, 0.3));
  animation: floatLogo 4s ease-in-out infinite;
}

@keyframes floatLogo {

  0%,
  100% {
    transform: translateY(0);
  }

  50% {
    transform: translateY(-10px);
  }
}

.hero-title {
  font-size: clamp(2rem, 5vw, 3.8rem);
  color: var(--color-white);
  margin-bottom: var(--space-sm);
  letter-spacing: -0.5px;
  white-space: nowrap;
}

.hero-title .gold {
  background: var(--gradient-gold);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-tagline {
  font-size: clamp(1rem, 2.5vw, 1.35rem);
  color: rgba(255, 255, 255, 0.85);
  font-weight: 300;
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: var(--space-xs);
}

.hero-sub {
  font-size: 1.1rem;
  color: rgba(255, 255, 255, 0.65);
  margin-bottom: var(--space-lg);
  max-width: 550px;
  margin-left: auto;
  margin-right: auto;
}

.hero-buttons {
  display: flex;
  gap: var(--space-sm);
  justify-content: center;
  flex-wrap: wrap;
}

.hero-scroll {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  animation: bounceDown 2s ease-in-out infinite;
}

.hero-scroll svg {
  width: 28px;
  height: 28px;
  color: rgba(255, 255, 255, 0.5);
}

@keyframes bounceDown {

  0%,
  100% {
    transform: translateX(-50%) translateY(0);
  }

  50% {
    transform: translateX(-50%) translateY(10px);
  }
}

/* ==========================================================================
   ABOUT SECTION
   ========================================================================== */
.about {
  background: var(--color-surface);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  align-items: center;
}

.about-image-wrapper {
  position: relative;
}

.about-image {
  width: 100%;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  aspect-ratio: 4/3;
  object-fit: cover;
}

.about-image-accent {
  position: absolute;
  top: -15px;
  left: -15px;
  width: 100%;
  height: 100%;
  border: 3px solid var(--color-primary);
  border-radius: var(--radius-lg);
  z-index: -1;
  opacity: 0.3;
}

.about-text h2 {
  font-size: clamp(1.8rem, 3.5vw, 2.5rem);
  margin-bottom: var(--space-sm);
}

.about-text .highlight-line {
  width: 60px;
  height: 3px;
  background: var(--gradient-gold);
  margin-bottom: var(--space-md);
  border-radius: 2px;
}

.about-text p {
  color: var(--color-text-light);
  margin-bottom: var(--space-sm);
  font-size: 1.02rem;
}

.about-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-sm);
  margin-top: var(--space-lg);
}

.stat-item {
  text-align: center;
  padding: var(--space-sm);
  background: var(--color-bg);
  border-radius: var(--radius-md);
}

.stat-number {
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-primary);
  display: block;
}

.stat-label {
  font-size: 0.8rem;
  color: var(--color-text-light);
  text-transform: uppercase;
  letter-spacing: 1px;
  font-weight: 500;
}

/* ==========================================================================
   PRODUCTS SECTION
   ========================================================================== */
.products {
  background: var(--color-bg);
}

.products-tabs {
  display: flex;
  justify-content: center;
  gap: var(--space-xs);
  margin-bottom: var(--space-xl);
  flex-wrap: wrap;
}

.tab-btn {
  padding: 0.65rem 1.5rem;
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text-light);
  background: transparent;
  border: 2px solid transparent;
  border-radius: var(--radius-xl);
  cursor: pointer;
  transition: all var(--transition-normal);
}

.tab-btn:hover {
  color: var(--color-primary);
  border-color: var(--color-primary-light);
}

.tab-btn.active {
  background: var(--gradient-gold);
  color: var(--color-white);
  border-color: transparent;
  box-shadow: var(--shadow-gold);
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-md);
}

.product-card {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--color-surface);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
  cursor: default;
}

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

.product-card-image {
  height: 220px;
  overflow: hidden;
  position: relative;
}

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

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

.product-card-badge {
  position: absolute;
  top: var(--space-sm);
  left: var(--space-sm);
  padding: 0.3rem 0.75rem;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--color-white);
  background: rgba(197, 165, 90, 0.9);
  backdrop-filter: blur(10px);
  border-radius: var(--radius-xl);
}

.product-card-body {
  padding: var(--space-md);
}

.product-card-title {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--color-secondary);
  margin-bottom: 0.4rem;
}

.product-card-desc {
  font-size: 0.9rem;
  color: var(--color-text-light);
  line-height: 1.6;
}

/* Hidden cards for tab filter */
.product-card[data-category] {
  display: block;
}

.product-card.hidden {
  display: none;
}

/* ==========================================================================
   WHY CHOOSE US
   ========================================================================== */
.why-us {
  background: var(--color-secondary);
  position: relative;
  overflow: hidden;
}

.why-us::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(197, 165, 90, 0.1) 0%, transparent 70%);
  border-radius: var(--radius-full);
}

.why-us .section-subtitle {
  color: var(--color-primary-light);
}

.why-us .section-title {
  color: var(--color-white);
}

.why-us .section-desc {
  color: rgba(255, 255, 255, 0.6);
}

.why-us-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--space-md);
}

.why-card {
  padding: var(--space-lg);
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-lg);
  text-align: center;
  transition: all var(--transition-normal);
}

.why-card:hover {
  background: rgba(255, 255, 255, 0.1);
  transform: translateY(-5px);
  border-color: rgba(197, 165, 90, 0.3);
}

.why-card-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto var(--space-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gradient-gold-subtle);
  border: 1px solid rgba(197, 165, 90, 0.2);
  border-radius: var(--radius-md);
}

.why-card-icon svg {
  width: 30px;
  height: 30px;
  color: var(--color-primary);
}

.why-card h3 {
  font-size: 1.15rem;
  color: var(--color-white);
  margin-bottom: 0.5rem;
}

.why-card p {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.55);
  line-height: 1.7;
}

/* ==========================================================================
   CONTACT SECTION
   ========================================================================== */
.contact {
  background: var(--color-surface);
}

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

.contact-info h3 {
  font-size: 1.5rem;
  margin-bottom: var(--space-md);
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
}

.contact-icon {
  width: 48px;
  height: 48px;
  min-width: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gradient-gold-subtle);
  border: 1px solid rgba(197, 165, 90, 0.2);
  border-radius: var(--radius-md);
}

.contact-icon svg {
  width: 22px;
  height: 22px;
  color: var(--color-primary);
}

.contact-item-label {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--color-neutral);
  font-weight: 500;
  margin-bottom: 0.15rem;
}

.contact-item-value {
  font-size: 1rem;
  color: var(--color-secondary);
  font-weight: 500;
}

.contact-item-value a {
  color: var(--color-primary-dark);
  transition: color var(--transition-fast);
}

.contact-item-value a:hover {
  color: var(--color-primary);
}

.contact-form {
  background: var(--color-bg);
  padding: var(--space-lg);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

.contact-form h3 {
  font-size: 1.3rem;
  margin-bottom: var(--space-md);
}

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

.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--color-text);
  margin-bottom: 0.3rem;
}

.form-control {
  width: 100%;
  padding: 0.8rem 1rem;
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--color-text);
  background: var(--color-surface);
  border: 1.5px solid rgba(168, 146, 121, 0.3);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  outline: none;
}

.form-control:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(197, 165, 90, 0.15);
}

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

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

.contact-map {
  margin-top: var(--space-md);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.contact-map iframe {
  width: 100%;
  height: 250px;
  border: 0;
}

/* ==========================================================================
   FOOTER
   ========================================================================== */
.footer {
  background: var(--color-dark);
  color: rgba(255, 255, 255, 0.6);
  padding: var(--space-xl) 0 var(--space-md);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: var(--space-xl);
  margin-bottom: var(--space-xl);
}

.footer-brand img {
  height: 50px;
  margin-bottom: var(--space-sm);
}

.footer-brand p {
  font-size: 0.9rem;
  line-height: 1.7;
  max-width: 280px;
}

.footer h4 {
  font-family: var(--font-heading);
  font-size: 1rem;
  color: var(--color-white);
  margin-bottom: var(--space-sm);
  position: relative;
  padding-bottom: 0.5rem;
}

.footer h4::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 30px;
  height: 2px;
  background: var(--color-primary);
  border-radius: 1px;
}

.footer-links li {
  margin-bottom: 0.5rem;
}

.footer-links a {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.55);
  transition: all var(--transition-fast);
}

.footer-links a:hover {
  color: var(--color-primary);
  padding-left: 5px;
}

.footer-contact-item {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: 0.6rem;
  font-size: 0.88rem;
}

.footer-contact-item svg {
  width: 16px;
  height: 16px;
  color: var(--color-primary);
  flex-shrink: 0;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: var(--space-md);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.footer-bottom p {
  font-size: 0.82rem;
}

.footer-social {
  display: flex;
  gap: 0.6rem;
}

.footer-social a {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-full);
  transition: all var(--transition-normal);
}

.footer-social a:hover {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-white);
}

.footer-social a svg {
  width: 16px;
  height: 16px;
}

/* ==========================================================================
   FLOATING WHATSAPP BUTTON
   ========================================================================== */
.whatsapp-float {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  z-index: 999;
  width: 60px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #25D366;
  border-radius: var(--radius-full);
  box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4);
  transition: all var(--transition-normal);
  animation: pulseWa 2s ease-in-out infinite;
}

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

.whatsapp-float svg {
  width: 30px;
  height: 30px;
  fill: #fff;
}

@keyframes pulseWa {

  0%,
  100% {
    box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4);
  }

  50% {
    box-shadow: 0 4px 30px rgba(37, 211, 102, 0.6);
  }
}

/* ==========================================================================
   SCROLL ANIMATIONS
   ========================================================================== */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: all 0.7s cubic-bezier(0.22, 1, 0.36, 1);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-left {
  opacity: 0;
  transform: translateX(-40px);
  transition: all 0.7s cubic-bezier(0.22, 1, 0.36, 1);
}

.reveal-left.visible {
  opacity: 1;
  transform: translateX(0);
}

.reveal-right {
  opacity: 0;
  transform: translateX(40px);
  transition: all 0.7s cubic-bezier(0.22, 1, 0.36, 1);
}

.reveal-right.visible {
  opacity: 1;
  transform: translateX(0);
}

/* Staggered delays for grid items */
.reveal-delay-1 {
  transition-delay: 0.1s;
}

.reveal-delay-2 {
  transition-delay: 0.2s;
}

.reveal-delay-3 {
  transition-delay: 0.3s;
}

.reveal-delay-4 {
  transition-delay: 0.4s;
}

.reveal-delay-5 {
  transition-delay: 0.5s;
}

.reveal-delay-6 {
  transition-delay: 0.6s;
}

/* ==========================================================================
   RESPONSIVE
   ========================================================================== */

/* Tablet */
@media (max-width: 1024px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-lg);
  }
}

@media (max-width: 768px) {
  .navbar-nav {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    background: var(--color-surface);
    flex-direction: column;
    align-items: flex-start;
    padding: 5rem 2rem 2rem;
    gap: 0.25rem;
    box-shadow: var(--shadow-lg);
    transition: right var(--transition-normal);
  }

  .navbar-nav.open {
    right: 0;
  }

  .navbar-nav .nav-link {
    color: var(--color-text);
    font-size: 1rem;
    width: 100%;
    padding: 0.75rem 0;
  }

  .navbar-nav .btn {
    margin-top: var(--space-sm);
  }

  .navbar-toggle {
    display: flex;
  }

  .hero-content {
    padding: var(--space-md);
  }

  .hero-logo {
    width: 90px;
  }

  .about-grid {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }

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

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

  .footer-grid {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }

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

  .section-padding {
    padding: var(--space-2xl) 0;
  }
}

@media (max-width: 480px) {
  :root {
    --container-padding: 1rem;
  }

  .hero-buttons {
    flex-direction: column;
    align-items: center;
  }

  .about-stats {
    grid-template-columns: 1fr;
    gap: 0.75rem;
  }

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

  .why-us-grid {
    grid-template-columns: 1fr;
  }
}