/* =========================================
   Khan Aquaculture - Main Stylesheet
   ========================================= */

/* --- CSS Variables --- */
:root {
  --color-primary: #0d6e3f;
  --color-primary-dark: #084d2c;
  --color-primary-light: #15a05c;
  --color-secondary: #0e7490;
  --color-accent: #22c55e;
  --color-teal: #14b8a6;
  --color-dark: #0a1f14;
  --color-dark-2: #132d1e;
  --color-text: #1e293b;
  --color-text-muted: #64748b;
  --color-bg: #f8fdf9;
  --color-bg-alt: #f0faf4;
  --color-white: #ffffff;
  --color-border: #d1fae5;
  --color-border-2: #a7f3d0;

  --font-heading: 'Playfair Display', Georgia, serif;
  --font-body: 'Inter', 'Segoe UI', system-ui, sans-serif;

  --shadow-sm: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
  --shadow-md: 0 4px 16px rgba(13,110,63,0.10), 0 2px 6px rgba(0,0,0,0.06);
  --shadow-lg: 0 8px 32px rgba(13,110,63,0.14), 0 4px 12px rgba(0,0,0,0.08);
  --shadow-xl: 0 20px 60px rgba(13,110,63,0.18);

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;
  --radius-xl: 32px;
  --radius-full: 9999px;

  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

body {
  font-family: var(--font-body);
  color: var(--color-text);
  background: var(--color-white);
  line-height: 1.6;
  overflow-x: hidden;
}

img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }
input, textarea, select { font-family: inherit; }

/* --- Typography --- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  line-height: 1.2;
  color: var(--color-dark);
}

.section-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-primary);
  background: rgba(13,110,63,0.08);
  border: 1px solid rgba(13,110,63,0.18);
  padding: 6px 16px;
  border-radius: var(--radius-full);
  margin-bottom: 18px;
}

.section-label::before {
  content: '';
  width: 6px;
  height: 6px;
  background: var(--color-accent);
  border-radius: 50%;
  display: inline-block;
}

.section-title {
  font-size: clamp(1.9rem, 4vw, 2.8rem);
  font-weight: 700;
  color: var(--color-dark);
  margin-bottom: 16px;
  line-height: 1.15;
}

.section-title span {
  color: var(--color-primary);
  position: relative;
  display: inline-block;
}

.section-title span::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--color-accent), var(--color-teal));
  border-radius: 2px;
}

.section-subtitle {
  font-size: 1.05rem;
  color: var(--color-text-muted);
  max-width: 560px;
  line-height: 1.7;
}

/* --- Layout --- */
.container {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 24px;
}

section { padding: 90px 0; }

.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }

.text-center { text-align: center; }
.text-center .section-subtitle { margin: 0 auto; }

.flex { display: flex; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.gap-2 { gap: 8px; }
.gap-3 { gap: 12px; }
.gap-4 { gap: 16px; }

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 30px;
  border-radius: var(--radius-full);
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.btn::after {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(255,255,255,0.12);
  opacity: 0;
  transition: var(--transition);
}

.btn:hover::after { opacity: 1; }

.btn-primary {
  background: var(--color-primary);
  color: var(--color-white);
  box-shadow: 0 4px 18px rgba(13,110,63,0.30);
}

.btn-primary:hover {
  background: var(--color-primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(13,110,63,0.40);
}

.btn-outline {
  background: transparent;
  color: var(--color-white);
  border: 2px solid rgba(255,255,255,0.65);
  backdrop-filter: blur(6px);
}

.btn-outline:hover {
  background: rgba(255,255,255,0.12);
  border-color: var(--color-white);
  transform: translateY(-2px);
}

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

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

.btn-icon {
  width: 40px;
  height: 40px;
  padding: 0;
  border-radius: 50%;
  justify-content: center;
}

/* --- Header / Nav --- */
#site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 999;
  transition: var(--transition);
  padding: 18px 0;
}

#site-header.scrolled {
  background: rgba(255,255,255,0.97);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 2px 24px rgba(13,110,63,0.10);
  padding: 12px 0;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.logo-icon {
  width: 44px;
  height: 44px;
  background: var(--color-primary);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 12px rgba(13,110,63,0.30);
}

.logo-icon svg { width: 26px; height: 26px; fill: white; }

.logo-text { line-height: 1.15; }
.logo-text strong {
  display: block;
  font-family: var(--font-heading);
  font-size: 1.15rem;
  color: var(--color-dark);
  font-weight: 700;
}
.logo-text span {
  font-size: 0.72rem;
  color: var(--color-primary);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  font-weight: 500;
}

/* Nav (transparent header) */
.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-links a {
  font-size: 0.9rem;
  font-weight: 500;
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  color: rgba(255,255,255,0.9);
  transition: var(--transition);
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--color-white);
  background: rgba(255,255,255,0.14);
}

/* Scrolled nav */
#site-header.scrolled .nav-links a {
  color: var(--color-text);
}
#site-header.scrolled .nav-links a:hover,
#site-header.scrolled .nav-links a.active {
  color: var(--color-primary);
  background: rgba(13,110,63,0.08);
}

#site-header.scrolled .logo-text strong { color: var(--color-dark); }
#site-header.scrolled .btn-outline {
  color: var(--color-primary);
  border-color: var(--color-primary);
}
#site-header.scrolled .btn-outline:hover {
  background: var(--color-primary);
  color: var(--color-white);
}

.nav-cta { margin-left: 12px; }

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  border-radius: var(--radius-sm);
  transition: var(--transition);
}
.hamburger span {
  width: 24px;
  height: 2px;
  background: white;
  border-radius: 2px;
  transition: var(--transition);
  display: block;
}
#site-header.scrolled .hamburger span { background: var(--color-dark); }
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile Nav */
.mobile-nav {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(8, 30, 18, 0.97);
  backdrop-filter: blur(16px);
  z-index: 998;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 24px;
  transform: translateX(100%);
  transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}
.mobile-nav.open {
  display: flex;
  transform: translateX(0);
}
.mobile-nav a {
  font-size: 1.5rem;
  font-family: var(--font-heading);
  color: white;
  padding: 12px 24px;
  border-radius: var(--radius-md);
  transition: var(--transition);
  text-align: center;
}
.mobile-nav a:hover { color: var(--color-accent); background: rgba(255,255,255,0.06); }
.mobile-nav-close {
  position: absolute;
  top: 24px;
  right: 24px;
  color: white;
  font-size: 1.5rem;
  padding: 8px;
  border-radius: 50%;
  background: rgba(255,255,255,0.1);
  cursor: pointer;
  transition: var(--transition);
  line-height: 1;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.mobile-nav-close:hover { background: rgba(255,255,255,0.2); }

/* --- Hero Section --- */
.hero {
  min-height: 100vh;
  position: relative;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding: 120px 0 80px;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    #062914 0%,
    #0a3d1f 30%,
    #0d5230 60%,
    #0e6e45 100%
  );
}

.hero-bg-pattern {
  position: absolute;
  inset: 0;
  opacity: 0.06;
  background-image:
    radial-gradient(circle at 20% 30%, rgba(255,255,255,0.8) 1px, transparent 1px),
    radial-gradient(circle at 80% 70%, rgba(255,255,255,0.8) 1px, transparent 1px),
    radial-gradient(circle at 50% 50%, rgba(255,255,255,0.4) 1px, transparent 1px);
  background-size: 60px 60px, 80px 80px, 40px 40px;
}

.hero-shapes {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
}

.hero-shape {
  position: absolute;
  border-radius: 50%;
  opacity: 0.07;
  background: radial-gradient(circle, rgba(34,197,94,1), transparent);
}

.hero-shape-1 { width: 600px; height: 600px; top: -200px; right: -100px; opacity: 0.10; }
.hero-shape-2 { width: 400px; height: 400px; bottom: -100px; left: 10%; opacity: 0.06; }
.hero-shape-3 { width: 200px; height: 200px; top: 40%; right: 20%; background: radial-gradient(circle, rgba(20,184,166,1), transparent); opacity: 0.10; }

.hero-water-wave {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 80px;
  overflow: hidden;
}

.hero-water-wave svg {
  width: 100%;
  height: 100%;
  fill: var(--color-white);
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 680px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255,255,255,0.10);
  border: 1px solid rgba(255,255,255,0.20);
  backdrop-filter: blur(8px);
  padding: 8px 18px;
  border-radius: var(--radius-full);
  color: rgba(255,255,255,0.90);
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  margin-bottom: 28px;
  animation: fadeInDown 0.6s ease both;
}

.hero-badge-dot {
  width: 8px;
  height: 8px;
  background: var(--color-accent);
  border-radius: 50%;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.6; transform: scale(0.85); }
}

.hero h1 {
  font-size: clamp(2.2rem, 5vw, 3.6rem);
  font-weight: 800;
  color: white;
  line-height: 1.12;
  margin-bottom: 22px;
  animation: fadeInUp 0.7s 0.1s ease both;
}

.hero h1 .accent {
  color: var(--color-accent);
  display: block;
}

.hero-subtitle {
  font-size: 1.1rem;
  color: rgba(255,255,255,0.78);
  line-height: 1.75;
  margin-bottom: 36px;
  max-width: 580px;
  animation: fadeInUp 0.7s 0.2s ease both;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  align-items: center;
  animation: fadeInUp 0.7s 0.3s ease both;
}

.hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 32px;
  margin-top: 56px;
  padding-top: 40px;
  border-top: 1px solid rgba(255,255,255,0.14);
  animation: fadeInUp 0.7s 0.4s ease both;
}

.hero-stat-item {}

.hero-stat-num {
  font-size: 2rem;
  font-weight: 800;
  font-family: var(--font-heading);
  color: white;
  line-height: 1;
  margin-bottom: 4px;
}

.hero-stat-num span { color: var(--color-accent); }

.hero-stat-label {
  font-size: 0.82rem;
  color: rgba(255,255,255,0.60);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-weight: 500;
}

/* Hero Image Side */
.hero-visual {
  position: relative;
  z-index: 2;
  animation: fadeInRight 0.8s 0.2s ease both;
}

.hero-img-main {
  width: 100%;
  aspect-ratio: 4/3;
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-xl);
  position: relative;
}

.hero-img-main img,
.img-placeholder {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.img-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  background: linear-gradient(135deg, #0d5230 0%, #0a7a4a 50%, #0d9962 100%);
  color: rgba(255,255,255,0.7);
  font-size: 0.85rem;
  font-weight: 500;
  text-align: center;
  padding: 24px;
}

.img-placeholder svg {
  width: 48px;
  height: 48px;
  opacity: 0.6;
}

.img-placeholder.blue {
  background: linear-gradient(135deg, #0c4a6e 0%, #0369a1 50%, #0ea5e9 100%);
}

.img-placeholder.teal {
  background: linear-gradient(135deg, #134e4a 0%, #0f766e 50%, #14b8a6 100%);
}

.img-placeholder.light {
  background: linear-gradient(135deg, #d1fae5 0%, #a7f3d0 50%, #6ee7b7 100%);
  color: var(--color-primary-dark);
}

.hero-img-badge {
  position: absolute;
  bottom: -20px;
  left: -20px;
  background: var(--color-white);
  border-radius: var(--radius-md);
  padding: 14px 18px;
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 200px;
}

.hero-img-badge-icon {
  width: 44px;
  height: 44px;
  background: rgba(13,110,63,0.10);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.hero-img-badge-icon svg { width: 22px; height: 22px; stroke: var(--color-primary); }

.hero-img-badge-text strong {
  display: block;
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--color-dark);
  line-height: 1;
}

.hero-img-badge-text span {
  font-size: 0.76rem;
  color: var(--color-text-muted);
}

/* --- Ticker / Marquee --- */
.ticker-wrap {
  background: var(--color-primary);
  padding: 14px 0;
  overflow: hidden;
}

.ticker-inner {
  display: flex;
  gap: 48px;
  animation: ticker 30s linear infinite;
  width: max-content;
}

.ticker-item {
  display: flex;
  align-items: center;
  gap: 10px;
  color: rgba(255,255,255,0.85);
  font-size: 0.88rem;
  font-weight: 500;
  white-space: nowrap;
}

.ticker-sep {
  color: rgba(255,255,255,0.35);
  font-size: 1.2rem;
}

@keyframes ticker {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

/* --- Cards --- */
.card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: var(--transition);
  border: 1px solid var(--color-border);
}

.card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-xl);
  border-color: var(--color-border-2);
}

.card-body { padding: 28px; }

/* --- About Section --- */
.about { background: var(--color-white); }

.about-img-wrap {
  position: relative;
}

.about-img-main {
  width: 100%;
  aspect-ratio: 5/4;
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-xl);
}

.about-img-accent {
  position: absolute;
  bottom: -24px;
  right: -24px;
  width: 200px;
  aspect-ratio: 1;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  border: 4px solid var(--color-white);
}

.about-experience-badge {
  position: absolute;
  top: -16px;
  left: -16px;
  background: var(--color-primary);
  color: white;
  border-radius: var(--radius-md);
  padding: 18px 22px;
  box-shadow: var(--shadow-lg);
  text-align: center;
  min-width: 120px;
}

.about-experience-badge strong {
  display: block;
  font-size: 2.2rem;
  font-family: var(--font-heading);
  font-weight: 800;
  line-height: 1;
}

.about-experience-badge span {
  font-size: 0.78rem;
  opacity: 0.80;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.about-content { padding-left: 24px; }

.about-features {
  margin-top: 28px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.about-feature-item {
  display: flex;
  gap: 14px;
  align-items: flex-start;
}

.about-feature-icon {
  width: 44px;
  height: 44px;
  background: rgba(13,110,63,0.08);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  border: 1px solid rgba(13,110,63,0.14);
}

.about-feature-icon svg { width: 20px; height: 20px; stroke: var(--color-primary); }

.about-feature-text strong {
  display: block;
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--color-dark);
  margin-bottom: 2px;
}

.about-feature-text p {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  line-height: 1.5;
}

/* --- Stats / Highlights Section --- */
.highlights {
  background: var(--color-dark);
  padding: 70px 0;
  position: relative;
  overflow: hidden;
}

.highlights::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 80% at 20% 50%, rgba(13,110,63,0.25), transparent),
    radial-gradient(ellipse 60% 80% at 80% 50%, rgba(14,116,144,0.20), transparent);
}

.highlights-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2px;
  position: relative;
  z-index: 1;
}

.highlight-item {
  text-align: center;
  padding: 36px 24px;
  border-right: 1px solid rgba(255,255,255,0.08);
}

.highlight-item:last-child { border-right: none; }

.highlight-icon {
  width: 60px;
  height: 60px;
  background: rgba(13,110,63,0.20);
  border: 1px solid rgba(13,110,63,0.30);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 18px;
}

.highlight-icon svg { width: 28px; height: 28px; stroke: var(--color-accent); }

.highlight-num {
  font-size: 2.8rem;
  font-weight: 800;
  font-family: var(--font-heading);
  color: var(--color-white);
  line-height: 1;
  margin-bottom: 8px;
}

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

.highlight-label {
  font-size: 0.88rem;
  color: rgba(255,255,255,0.55);
  text-transform: uppercase;
  letter-spacing: 0.07em;
  font-weight: 500;
}

/* --- Services Section --- */
.services { background: var(--color-bg-alt); }

.service-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  border: 1px solid var(--color-border);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-teal));
  transform: scaleX(0);
  transform-origin: left;
  transition: var(--transition);
}

.service-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-xl);
  border-color: var(--color-border-2);
}

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

.service-icon {
  width: 64px;
  height: 64px;
  background: linear-gradient(135deg, rgba(13,110,63,0.10), rgba(14,116,144,0.10));
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 22px;
  border: 1px solid rgba(13,110,63,0.12);
  transition: var(--transition);
}

.service-card:hover .service-icon {
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  border-color: transparent;
}

.service-icon svg {
  width: 30px;
  height: 30px;
  stroke: var(--color-primary);
  transition: var(--transition);
}

.service-card:hover .service-icon svg { stroke: white; }

.service-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-dark);
  margin-bottom: 10px;
}

.service-card p {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  line-height: 1.65;
}

.service-card-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 18px;
  color: var(--color-primary);
  font-size: 0.88rem;
  font-weight: 600;
  transition: var(--transition);
}

.service-card-link:hover { gap: 10px; }
.service-card-link svg { width: 16px; height: 16px; stroke: currentColor; }

/* --- Sustainability Section --- */
.sustainability {
  background: linear-gradient(135deg, #042b14 0%, #064922 40%, #08663a 100%);
  color: white;
  position: relative;
  overflow: hidden;
}

.sustainability::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.sustainability .section-label {
  background: rgba(255,255,255,0.10);
  border-color: rgba(255,255,255,0.20);
  color: rgba(255,255,255,0.90);
}

.sustainability .section-title { color: white; }
.sustainability .section-subtitle { color: rgba(255,255,255,0.70); }

.sustain-items {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 48px;
  position: relative;
  z-index: 1;
}

.sustain-item {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.10);
  border-radius: var(--radius-lg);
  padding: 30px 24px;
  transition: var(--transition);
  backdrop-filter: blur(6px);
}

.sustain-item:hover {
  background: rgba(255,255,255,0.10);
  border-color: rgba(255,255,255,0.20);
  transform: translateY(-4px);
}

.sustain-item-icon {
  width: 52px;
  height: 52px;
  background: rgba(34,197,94,0.15);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
}

.sustain-item-icon svg { width: 26px; height: 26px; stroke: var(--color-accent); }

.sustain-item h3 {
  font-size: 1.05rem;
  font-weight: 700;
  color: white;
  margin-bottom: 8px;
}

.sustain-item p {
  font-size: 0.88rem;
  color: rgba(255,255,255,0.62);
  line-height: 1.65;
}

/* --- Gallery Section --- */
.gallery { background: var(--color-white); }

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-template-rows: auto auto;
  gap: 18px;
  margin-top: 40px;
}

.gallery-item {
  border-radius: var(--radius-lg);
  overflow: hidden;
  cursor: pointer;
  position: relative;
  aspect-ratio: 4/3;
}

.gallery-item.tall { grid-row: span 2; aspect-ratio: auto; }
.gallery-item.wide { grid-column: span 2; aspect-ratio: auto; }

.gallery-item-inner {
  width: 100%;
  height: 100%;
  min-height: 200px;
  position: relative;
  overflow: hidden;
}

.gallery-item.tall .gallery-item-inner { min-height: 460px; }
.gallery-item.wide .gallery-item-inner { min-height: 240px; }

.gallery-item-inner .img-placeholder {
  position: absolute;
  inset: 0;
  height: 100%;
}

.gallery-overlay {
  position: absolute;
  inset: 0;
  background: rgba(6, 41, 20, 0.0);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

.gallery-item:hover .gallery-overlay { background: rgba(6, 41, 20, 0.55); }

.gallery-overlay-icon {
  opacity: 0;
  transform: scale(0.8);
  transition: var(--transition);
  width: 52px;
  height: 52px;
  background: rgba(255,255,255,0.15);
  border: 2px solid rgba(255,255,255,0.60);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.gallery-item:hover .gallery-overlay-icon {
  opacity: 1;
  transform: scale(1);
}

.gallery-overlay-icon svg { width: 22px; height: 22px; stroke: white; }

.gallery-label {
  position: absolute;
  bottom: 14px;
  left: 14px;
  background: rgba(0,0,0,0.55);
  backdrop-filter: blur(8px);
  color: white;
  font-size: 0.8rem;
  font-weight: 600;
  padding: 5px 12px;
  border-radius: var(--radius-full);
  opacity: 0;
  transform: translateY(8px);
  transition: var(--transition);
}

.gallery-item:hover .gallery-label { opacity: 1; transform: translateY(0); }

/* --- Future Expansion Section --- */
.expansion { background: var(--color-bg-alt); }

.expansion-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: 28px;
  border: 1px solid var(--color-border);
  display: flex;
  gap: 18px;
  align-items: flex-start;
  transition: var(--transition);
}

.expansion-card:hover {
  box-shadow: var(--shadow-lg);
  border-color: var(--color-border-2);
  transform: translateX(4px);
}

.expansion-card-num {
  width: 48px;
  height: 48px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
  color: white;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 1.1rem;
  flex-shrink: 0;
  box-shadow: 0 4px 12px rgba(13,110,63,0.30);
}

.expansion-card-body h3 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-dark);
  margin-bottom: 6px;
}

.expansion-card-body p {
  font-size: 0.86rem;
  color: var(--color-text-muted);
  line-height: 1.55;
}

.expansion-visual {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  aspect-ratio: 1;
}

.expansion-visual .img-placeholder {
  height: 100%;
  min-height: 400px;
}

.expansion-visual-tag {
  position: absolute;
  top: 18px;
  right: 18px;
  background: var(--color-primary);
  color: white;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  padding: 6px 14px;
  border-radius: var(--radius-full);
}

/* --- Why Choose Us --- */
.why-us { background: var(--color-white); }

.why-card {
  text-align: center;
  padding: 36px 24px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  background: var(--color-bg-alt);
  transition: var(--transition);
}

.why-card:hover {
  background: var(--color-white);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-border-2);
  transform: translateY(-4px);
}

.why-card-icon {
  width: 72px;
  height: 72px;
  background: linear-gradient(135deg, rgba(13,110,63,0.08), rgba(14,116,144,0.08));
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  transition: var(--transition);
}

.why-card:hover .why-card-icon {
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
}

.why-card-icon svg {
  width: 32px;
  height: 32px;
  stroke: var(--color-primary);
  transition: var(--transition);
}

.why-card:hover .why-card-icon svg { stroke: white; }

.why-card h3 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-dark);
  margin-bottom: 10px;
}

.why-card p {
  font-size: 0.88rem;
  color: var(--color-text-muted);
  line-height: 1.65;
}

/* --- CTA Banner --- */
.cta-banner {
  background: linear-gradient(135deg, var(--color-primary-dark), var(--color-primary), var(--color-secondary));
  padding: 80px 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-banner::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle at 30% 50%, rgba(255,255,255,0.05) 1px, transparent 1px),
                    radial-gradient(circle at 70% 50%, rgba(255,255,255,0.05) 1px, transparent 1px);
  background-size: 48px 48px;
}

.cta-banner h2 {
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  color: white;
  margin-bottom: 16px;
  position: relative;
}

.cta-banner p {
  font-size: 1.05rem;
  color: rgba(255,255,255,0.75);
  margin-bottom: 32px;
  max-width: 500px;
  margin-left: auto;
  margin-right: auto;
  position: relative;
}

.cta-banner .btn { position: relative; }

.btn-white {
  background: white;
  color: var(--color-primary);
  font-weight: 700;
}

.btn-white:hover {
  background: #f0faf4;
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(0,0,0,0.15);
}

/* --- Contact Section --- */
.contact { background: var(--color-bg-alt); }

.contact-wrap {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 48px;
  align-items: start;
}

.contact-info h2 {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 14px;
}

.contact-info p {
  color: var(--color-text-muted);
  margin-bottom: 32px;
  line-height: 1.7;
}

.contact-detail-list {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.contact-detail-item {
  display: flex;
  gap: 14px;
  align-items: flex-start;
}

.contact-detail-icon {
  width: 44px;
  height: 44px;
  background: rgba(13,110,63,0.08);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  border: 1px solid rgba(13,110,63,0.14);
}

.contact-detail-icon svg { width: 18px; height: 18px; stroke: var(--color-primary); }

.contact-detail-text strong {
  display: block;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--color-dark);
  margin-bottom: 2px;
}

.contact-detail-text span {
  font-size: 0.88rem;
  color: var(--color-text-muted);
}

/* Form */
.contact-form-card {
  background: var(--color-white);
  border-radius: var(--radius-xl);
  padding: 40px;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--color-border);
}

.contact-form-card h3 {
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 24px;
  color: var(--color-dark);
}

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 18px;
}

.form-group.full { grid-column: span 2; }

.form-group label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-dark);
}

.form-control {
  width: 100%;
  padding: 12px 16px;
  border: 1.5px solid #e2e8f0;
  border-radius: var(--radius-sm);
  font-size: 0.92rem;
  color: var(--color-text);
  background: var(--color-bg-alt);
  transition: var(--transition);
  outline: none;
}

.form-control:focus {
  border-color: var(--color-primary);
  background: var(--color-white);
  box-shadow: 0 0 0 3px rgba(13,110,63,0.10);
}

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

.form-success {
  display: none;
  text-align: center;
  padding: 24px;
  background: rgba(13,110,63,0.06);
  border: 1px solid rgba(13,110,63,0.20);
  border-radius: var(--radius-md);
  margin-top: 16px;
}

.form-success.show { display: block; }
.form-success-icon { font-size: 2.5rem; margin-bottom: 8px; }
.form-success h4 { color: var(--color-primary); margin-bottom: 4px; }
.form-success p { font-size: 0.88rem; color: var(--color-text-muted); }

/* --- Footer --- */
.site-footer {
  background: var(--color-dark);
  color: rgba(255,255,255,0.70);
  padding: 72px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.2fr;
  gap: 40px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.footer-brand .logo { margin-bottom: 16px; }
.footer-brand .logo-text strong { color: white; }
.footer-brand .logo-text span { color: var(--color-accent); }

.footer-brand p {
  font-size: 0.88rem;
  line-height: 1.7;
  max-width: 280px;
}

.footer-social {
  display: flex;
  gap: 10px;
  margin-top: 20px;
}

.social-btn {
  width: 38px;
  height: 38px;
  background: rgba(255,255,255,0.07);
  border: 1px solid rgba(255,255,255,0.10);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,0.65);
  font-size: 0.78rem;
  font-weight: 700;
  transition: var(--transition);
}

.social-btn:hover {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: white;
  transform: translateY(-3px);
}

.footer-col h4 {
  font-size: 0.9rem;
  font-weight: 700;
  color: white;
  margin-bottom: 18px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-links a {
  font-size: 0.88rem;
  color: rgba(255,255,255,0.55);
  transition: var(--transition);
  display: flex;
  align-items: center;
  gap: 6px;
}

.footer-links a::before {
  content: '';
  width: 5px;
  height: 5px;
  background: var(--color-accent);
  border-radius: 50%;
  flex-shrink: 0;
  opacity: 0;
  transition: var(--transition);
}

.footer-links a:hover {
  color: var(--color-accent);
  padding-left: 6px;
}

.footer-links a:hover::before { opacity: 1; }

.footer-newsletter p {
  font-size: 0.88rem;
  margin-bottom: 14px;
  line-height: 1.6;
}

.newsletter-form {
  display: flex;
  gap: 8px;
}

.newsletter-form input {
  flex: 1;
  padding: 10px 14px;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: var(--radius-sm);
  color: white;
  font-size: 0.85rem;
  outline: none;
  transition: var(--transition);
}

.newsletter-form input::placeholder { color: rgba(255,255,255,0.35); }
.newsletter-form input:focus { border-color: var(--color-accent); background: rgba(255,255,255,0.08); }

.newsletter-form button {
  padding: 10px 18px;
  background: var(--color-primary);
  color: white;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-weight: 600;
  transition: var(--transition);
}

.newsletter-form button:hover { background: var(--color-primary-light); }

.footer-bottom {
  padding: 22px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

.footer-bottom p { font-size: 0.82rem; }
.footer-bottom a { color: var(--color-accent); }

/* --- Animations --- */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(28px); }
  to { opacity: 1; transform: translateY(0); }
}

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

@keyframes fadeInRight {
  from { opacity: 0; transform: translateX(40px); }
  to { opacity: 1; transform: translateX(0); }
}

@keyframes fadeInLeft {
  from { opacity: 0; transform: translateX(-40px); }
  to { opacity: 1; transform: translateX(0); }
}

.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.65s ease, transform 0.65s ease;
}

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

.reveal-left {
  opacity: 0;
  transform: translateX(-30px);
  transition: opacity 0.65s ease, transform 0.65s ease;
}

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

.reveal-right {
  opacity: 0;
  transform: translateX(30px);
  transition: opacity 0.65s ease, transform 0.65s ease;
}

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

.delay-1 { transition-delay: 0.1s; }
.delay-2 { transition-delay: 0.2s; }
.delay-3 { transition-delay: 0.3s; }
.delay-4 { transition-delay: 0.4s; }
.delay-5 { transition-delay: 0.5s; }

/* --- Page Hero (inner pages) --- */
.page-hero {
  padding: 140px 0 70px;
  background: linear-gradient(135deg, #042b14 0%, #064922 60%, #085e30 100%);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.page-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle at 50% 80%, rgba(34,197,94,0.08), transparent 60%);
}

.page-hero h1 {
  font-size: clamp(2rem, 5vw, 3.2rem);
  color: white;
  position: relative;
}

.page-hero .breadcrumb {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-top: 16px;
  font-size: 0.88rem;
  color: rgba(255,255,255,0.55);
  position: relative;
}

.page-hero .breadcrumb a { color: rgba(255,255,255,0.75); }
.page-hero .breadcrumb a:hover { color: var(--color-accent); }
.page-hero .breadcrumb-sep { font-size: 0.7rem; }

/* --- Utility --- */
.mt-2 { margin-top: 8px; }
.mt-4 { margin-top: 16px; }
.mt-6 { margin-top: 24px; }
.mt-8 { margin-top: 32px; }
.mb-2 { margin-bottom: 8px; }
.mb-4 { margin-bottom: 16px; }

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

@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .highlights-grid { grid-template-columns: repeat(2, 1fr); }
  .highlight-item { border-bottom: 1px solid rgba(255,255,255,0.08); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 900px) {
  .grid-2 { grid-template-columns: 1fr; }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .sustain-items { grid-template-columns: repeat(2, 1fr); }
  .about-content { padding-left: 0; }
  .about-img-accent { display: none; }
  .about-experience-badge { top: 16px; left: 16px; }
  .contact-wrap { grid-template-columns: 1fr; }
  .expansion-visual { display: none; }
}

@media (max-width: 768px) {
  section { padding: 64px 0; }
  .nav-links, .nav-cta { display: none; }
  .hamburger { display: flex; }
  .hero { padding: 100px 0 64px; }
  .hero h1 { font-size: 2rem; }
  .hero-stats { gap: 20px; }
  .hero-stat-num { font-size: 1.6rem; }
  .highlights-grid { grid-template-columns: 1fr 1fr; }
  .gallery-grid { grid-template-columns: 1fr 1fr; }
  .gallery-item.tall, .gallery-item.wide { grid-column: span 1; grid-row: span 1; }
  .footer-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .form-group.full { grid-column: span 1; }
  .footer-bottom { flex-direction: column; text-align: center; }
}

@media (max-width: 540px) {
  .container { padding: 0 16px; }
  .grid-3 { grid-template-columns: 1fr; }
  .sustain-items { grid-template-columns: 1fr; }
  .grid-4 { grid-template-columns: 1fr; }
  .highlights-grid { grid-template-columns: 1fr; }
  .highlight-item { border-right: none; }
  .gallery-grid { grid-template-columns: 1fr; }
  .hero-actions { flex-direction: column; align-items: flex-start; }
  .hero-stats { flex-direction: column; gap: 16px; }
  .contact-form-card { padding: 24px 18px; }
  .newsletter-form { flex-direction: column; }
}