/* ============================================================
   SÔNG HỒNG RENEWABLE ENERGY — Main Stylesheet
   Color Scheme:
     Primary:  #1a6e3c  (deep green)
     Accent:   #f59e0b  (amber/golden)
     Dark bg:  #0d1b0f
     Light bg: #f0fdf4
   ============================================================ */

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

:root {
  --green:   #1a6e3c;
  --green-dark: #0f4526;
  --green-light: #2a9d5c;
  --amber:   #f59e0b;
  --amber-light: #fbbf24;
  --dark:    #0d1b0f;
  --light:   #f0fdf4;
  --white:   #ffffff;
  --gray:    #6b7280;
  --gray-light: #e5e7eb;
  --font-head: 'Montserrat', sans-serif;
  --font-body: 'Open Sans', sans-serif;
  --radius:  12px;
  --shadow:  0 4px 24px rgba(0,0,0,0.10);
  --shadow-lg: 0 8px 40px rgba(0,0,0,0.18);
  --transition: 0.3s ease;
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  color: #1f2937;
  background: var(--white);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

img { display: block; max-width: 100%; }
a  { text-decoration: none; color: inherit; }
ul { list-style: none; }

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ---- Typography ---- */
h1, h2, h3, h4 {
  font-family: var(--font-head);
  font-weight: 700;
  line-height: 1.2;
}

.section-label {
  display: inline-block;
  font-family: var(--font-head);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--amber);
  margin-bottom: 12px;
}

.section-title {
  font-size: clamp(1.8rem, 3vw, 2.6rem);
  color: var(--dark);
  margin-bottom: 16px;
}

.section-subtitle {
  font-size: 1.05rem;
  color: var(--gray);
  max-width: 620px;
}

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: 6px;
  font-family: var(--font-head);
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  cursor: pointer;
  border: 2px solid transparent;
  transition: all var(--transition);
}

.btn-primary {
  background: var(--amber);
  color: var(--dark);
  border-color: var(--amber);
}
.btn-primary:hover {
  background: var(--amber-light);
  border-color: var(--amber-light);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(245,158,11,0.4);
}

.btn-outline {
  background: transparent;
  color: var(--white);
  border-color: rgba(255,255,255,0.7);
}
.btn-outline:hover {
  background: rgba(255,255,255,0.15);
  border-color: var(--white);
  transform: translateY(-2px);
}

.btn-green {
  background: var(--green);
  color: var(--white);
  border-color: var(--green);
}
.btn-green:hover {
  background: var(--green-dark);
  border-color: var(--green-dark);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(26,110,60,0.4);
}

/* ============================================================
   HEADER / NAVIGATION
   ============================================================ */
#header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  background: transparent;
  transition: background var(--transition), box-shadow var(--transition);
  padding: 0;
}

#header.scrolled {
  background: rgba(13,27,15,0.97);
  backdrop-filter: blur(12px);
  box-shadow: 0 2px 20px rgba(0,0,0,0.3);
}

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

/* Logo */
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.logo-icon {
  width: 42px;
  height: 42px;
}

.logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}

.logo-text .brand-name {
  font-family: var(--font-head);
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--white);
  letter-spacing: 0.04em;
}

.logo-text .brand-sub {
  font-family: var(--font-body);
  font-size: 0.6rem;
  color: var(--amber);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

/* Nav Links */
.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-links a {
  font-family: var(--font-head);
  font-size: 0.85rem;
  font-weight: 600;
  color: rgba(255,255,255,0.85);
  padding: 8px 14px;
  border-radius: 6px;
  transition: color var(--transition), background var(--transition);
  letter-spacing: 0.02em;
}

.nav-links a:hover {
  color: var(--white);
  background: rgba(255,255,255,0.1);
}

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

/* Mobile Menu Toggle */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
}

.hamburger span {
  display: block;
  width: 26px;
  height: 2px;
  background: var(--white);
  border-radius: 2px;
  transition: all var(--transition);
}

.hamburger.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile Nav */
.mobile-nav {
  display: none;
  background: rgba(13,27,15,0.98);
  backdrop-filter: blur(12px);
  padding: 20px 24px 28px;
  border-top: 1px solid rgba(255,255,255,0.08);
}

.mobile-nav.open { display: block; }

.mobile-nav a {
  display: block;
  font-family: var(--font-head);
  font-size: 0.95rem;
  font-weight: 600;
  color: rgba(255,255,255,0.85);
  padding: 12px 0;
  border-bottom: 1px solid rgba(255,255,255,0.07);
  transition: color var(--transition);
}

.mobile-nav a:hover { color: var(--amber); }
.mobile-nav .btn { margin-top: 16px; width: 100%; justify-content: center; }

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

.hero-bg {
  position: absolute;
  inset: 0;
  background-image: url('https://images.unsplash.com/photo-1509391366360-2e959784a276?w=1920&q=80');
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
  opacity: 0.45;
  transform: scale(1.03);
  transition: transform 8s ease;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    rgba(13,27,15,0.85) 0%,
    rgba(26,110,60,0.5) 60%,
    rgba(13,27,15,0.7) 100%
  );
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 760px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(245,158,11,0.15);
  border: 1px solid rgba(245,158,11,0.4);
  border-radius: 50px;
  padding: 6px 16px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--amber);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: 24px;
}

.hero-badge::before {
  content: '';
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--amber);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%       { opacity: 0.4; transform: scale(1.4); }
}

.hero-title {
  font-size: clamp(2.4rem, 5.5vw, 4.2rem);
  color: var(--white);
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 20px;
  letter-spacing: -0.01em;
}

.hero-title span {
  color: var(--amber);
  display: block;
}

.hero-subtitle {
  font-size: clamp(1rem, 1.8vw, 1.2rem);
  color: rgba(255,255,255,0.82);
  margin-bottom: 36px;
  max-width: 580px;
  line-height: 1.75;
}

.hero-buttons {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

/* Hero scroll indicator */
.hero-scroll {
  position: absolute;
  bottom: 36px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  cursor: pointer;
  opacity: 0.7;
  transition: opacity var(--transition);
}
.hero-scroll:hover { opacity: 1; }
.hero-scroll span {
  font-size: 0.7rem;
  color: rgba(255,255,255,0.7);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.scroll-line {
  width: 1px;
  height: 48px;
  background: linear-gradient(to bottom, rgba(255,255,255,0.5), transparent);
  animation: scrollDown 1.8s infinite;
}
@keyframes scrollDown {
  0%   { opacity: 0; transform: scaleY(0); transform-origin: top; }
  50%  { opacity: 1; }
  100% { opacity: 0; transform: scaleY(1); transform-origin: top; }
}

/* ============================================================
   VISION / TẦM NHÌN
   ============================================================ */
#vision {
  padding: 100px 0;
  background: var(--white);
}

.vision-intro {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 64px;
}

.vision-intro .section-subtitle {
  margin: 0 auto;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.feature-card {
  background: var(--light);
  border: 1px solid rgba(26,110,60,0.1);
  border-radius: var(--radius);
  padding: 32px 28px;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--green), var(--amber));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition);
}

.feature-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(26,110,60,0.25);
}

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

.feature-icon {
  width: 56px;
  height: 56px;
  background: linear-gradient(135deg, var(--green), var(--green-light));
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  font-size: 1.6rem;
}

.feature-card h3 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 8px;
}

.feature-card p {
  font-size: 0.9rem;
  color: var(--gray);
  line-height: 1.65;
}

/* ============================================================
   SERVICES / DỊCH VỤ
   ============================================================ */
#services {
  padding: 100px 0;
  background: var(--dark);
  position: relative;
  overflow: hidden;
}

#services::before {
  content: '';
  position: absolute;
  top: -100px; right: -100px;
  width: 400px; height: 400px;
  border-radius: 50%;
  background: rgba(26,110,60,0.15);
  filter: blur(60px);
  pointer-events: none;
}

.services-header {
  text-align: center;
  margin-bottom: 56px;
}

.services-header .section-title { color: var(--white); }
.services-header .section-subtitle { color: rgba(255,255,255,0.65); margin: 0 auto; }

.services-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}

.service-card {
  border-radius: var(--radius);
  overflow: hidden;
  position: relative;
  min-height: 480px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  cursor: pointer;
}

.service-card-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  transition: transform 0.6s ease;
}

.service-card:hover .service-card-bg { transform: scale(1.06); }

.service-card-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(13,27,15,0.95) 0%, rgba(13,27,15,0.5) 50%, rgba(13,27,15,0.15) 100%);
}

.service-card-content {
  position: relative;
  z-index: 2;
  padding: 36px 32px;
}

.service-tag {
  display: inline-block;
  background: var(--amber);
  color: var(--dark);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 4px 12px;
  border-radius: 50px;
  margin-bottom: 14px;
}

.service-card h3 {
  font-size: 1.6rem;
  color: var(--white);
  margin-bottom: 12px;
}

.service-card p {
  font-size: 0.95rem;
  color: rgba(255,255,255,0.75);
  margin-bottom: 24px;
  line-height: 1.65;
}

.service-card .btn { align-self: flex-start; }

/* ============================================================
   LEAD FORM — TIẾT KIỆM CHI PHÍ
   ============================================================ */
#lead-form {
  padding: 100px 0;
  background: linear-gradient(135deg, var(--green-dark) 0%, var(--green) 100%);
  position: relative;
  overflow: hidden;
}

#lead-form::before {
  content: '';
  position: absolute;
  bottom: -80px; left: -80px;
  width: 360px; height: 360px;
  border-radius: 50%;
  background: rgba(255,255,255,0.05);
  pointer-events: none;
}

#lead-form::after {
  content: '';
  position: absolute;
  top: -60px; right: 10%;
  width: 260px; height: 260px;
  border-radius: 50%;
  background: rgba(245,158,11,0.08);
  pointer-events: none;
}

.lead-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.lead-text .section-title { color: var(--white); }
.lead-text .section-subtitle { color: rgba(255,255,255,0.75); }

.lead-highlights {
  margin-top: 32px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.lead-highlight-item {
  display: flex;
  align-items: center;
  gap: 12px;
  color: rgba(255,255,255,0.9);
  font-size: 0.95rem;
  font-weight: 500;
}

.lead-highlight-item .check-icon {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--amber);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 0.7rem;
  color: var(--dark);
  font-weight: 700;
}

.lead-form-box {
  background: var(--white);
  border-radius: 16px;
  padding: 40px 36px;
  box-shadow: 0 20px 60px rgba(0,0,0,0.2);
}

.lead-form-box h3 {
  font-size: 1.3rem;
  color: var(--dark);
  margin-bottom: 8px;
}

.lead-form-box p {
  font-size: 0.9rem;
  color: var(--gray);
  margin-bottom: 28px;
}

.form-group {
  margin-bottom: 16px;
}

.form-group label {
  display: block;
  font-size: 0.82rem;
  font-weight: 600;
  color: #374151;
  margin-bottom: 6px;
  letter-spacing: 0.02em;
}

.form-group input,
.form-group select {
  width: 100%;
  padding: 12px 16px;
  border: 1.5px solid var(--gray-light);
  border-radius: 8px;
  font-family: var(--font-body);
  font-size: 0.9rem;
  color: var(--dark);
  background: #f9fafb;
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
}

.form-group input:focus,
.form-group select:focus {
  border-color: var(--green);
  box-shadow: 0 0 0 3px rgba(26,110,60,0.12);
  background: var(--white);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.form-submit {
  margin-top: 8px;
  width: 100%;
  justify-content: center;
  padding: 15px 28px;
  font-size: 0.95rem;
}

.form-note {
  text-align: center;
  font-size: 0.78rem;
  color: var(--gray);
  margin-top: 12px;
}

/* ============================================================
   STATISTICS / THỐNG KÊ
   ============================================================ */
#stats {
  padding: 80px 0;
  background: var(--light);
  border-top: 1px solid rgba(26,110,60,0.08);
  border-bottom: 1px solid rgba(26,110,60,0.08);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  text-align: center;
}

.stat-item {
  padding: 32px 24px;
  border-right: 1px solid rgba(26,110,60,0.12);
  transition: transform var(--transition);
}

.stat-item:last-child { border-right: none; }
.stat-item:hover { transform: translateY(-4px); }

.stat-number {
  font-family: var(--font-head);
  font-size: clamp(2.2rem, 4vw, 3.2rem);
  font-weight: 800;
  color: var(--green);
  line-height: 1;
  margin-bottom: 8px;
}

.stat-number span { color: var(--amber); }

.stat-label {
  font-size: 0.9rem;
  font-weight: 600;
  color: #374151;
  margin-bottom: 4px;
}

.stat-desc {
  font-size: 0.8rem;
  color: var(--gray);
}

/* ============================================================
   LEADERSHIP / BAN LÃNH ĐẠO
   ============================================================ */
#leadership {
  padding: 100px 0;
  background: var(--white);
}

.leadership-header {
  text-align: center;
  margin-bottom: 56px;
}

.team-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.team-card {
  text-align: center;
  transition: transform var(--transition);
}

.team-card:hover { transform: translateY(-6px); }

.team-avatar {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  margin: 0 auto 20px;
  overflow: hidden;
  border: 4px solid var(--light);
  box-shadow: 0 4px 20px rgba(26,110,60,0.2);
  background: var(--light);
  position: relative;
}

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

.team-card h3 {
  font-size: 1.05rem;
  color: var(--dark);
  margin-bottom: 4px;
}

.team-role {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--green);
  margin-bottom: 10px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.team-bio {
  font-size: 0.88rem;
  color: var(--gray);
  line-height: 1.65;
  max-width: 260px;
  margin: 0 auto;
}

/* ============================================================
   HERITAGE & QUALITY / DI SẢN & CHẤT LƯỢNG
   ============================================================ */
#heritage {
  padding: 100px 0;
  background: var(--dark);
  position: relative;
  overflow: hidden;
}

.heritage-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  border-radius: var(--radius);
  overflow: hidden;
}

.heritage-col {
  padding: 56px 52px;
  position: relative;
}

.heritage-col:first-child {
  background: linear-gradient(135deg, var(--green) 0%, var(--green-dark) 100%);
}

.heritage-col:last-child {
  background: linear-gradient(135deg, rgba(245,158,11,0.15) 0%, rgba(245,158,11,0.05) 100%);
  border: 1px solid rgba(245,158,11,0.2);
  border-left: none;
}

.heritage-col .section-label { margin-bottom: 8px; }

.heritage-col h2 {
  font-size: clamp(1.6rem, 2.5vw, 2rem);
  color: var(--white);
  margin-bottom: 20px;
}

.heritage-col p {
  font-size: 0.95rem;
  color: rgba(255,255,255,0.75);
  line-height: 1.8;
  margin-bottom: 16px;
}

.heritage-list {
  margin-top: 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.heritage-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.9rem;
  color: rgba(255,255,255,0.85);
}

.heritage-list li::before {
  content: '◆';
  color: var(--amber);
  font-size: 0.6rem;
  margin-top: 5px;
  flex-shrink: 0;
}

/* ============================================================
   BLOG / BÀI VIẾT
   ============================================================ */
#blog {
  padding: 100px 0;
  background: var(--light);
}

.blog-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: 48px;
}

.blog-header .btn-link {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--green);
  display: flex;
  align-items: center;
  gap: 6px;
  transition: gap var(--transition);
}
.blog-header .btn-link:hover { gap: 10px; }

.blog-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.blog-card {
  background: var(--white);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: transform var(--transition), box-shadow var(--transition);
}

.blog-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}

.blog-img {
  height: 200px;
  overflow: hidden;
  position: relative;
}

.blog-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.blog-card:hover .blog-img img { transform: scale(1.06); }

.blog-cat {
  position: absolute;
  top: 14px; left: 14px;
  background: var(--green);
  color: var(--white);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: 50px;
}

.blog-body {
  padding: 24px;
}

.blog-date {
  font-size: 0.78rem;
  color: var(--gray);
  margin-bottom: 10px;
}

.blog-body h3 {
  font-size: 1rem;
  color: var(--dark);
  margin-bottom: 10px;
  line-height: 1.45;
  transition: color var(--transition);
}

.blog-card:hover .blog-body h3 { color: var(--green); }

.blog-body p {
  font-size: 0.87rem;
  color: var(--gray);
  line-height: 1.65;
  margin-bottom: 16px;
}

.blog-read {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--green);
  display: flex;
  align-items: center;
  gap: 4px;
  transition: gap var(--transition);
}
.blog-card:hover .blog-read { gap: 8px; }

/* ============================================================
   CTA SECTION
   ============================================================ */
#cta {
  padding: 100px 0;
  background: linear-gradient(135deg, var(--dark) 0%, #1a3020 100%);
  position: relative;
  overflow: hidden;
}

.cta-bg-decor {
  position: absolute;
  inset: 0;
  background-image: url('https://images.unsplash.com/photo-1497440001374-f26997328c1b?w=1920&q=80');
  background-size: cover;
  background-position: center;
  opacity: 0.08;
}

.cta-inner {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.cta-text {
  padding-right: 20px;
}

.cta-text .section-title { color: var(--white); margin-bottom: 12px; }
.cta-text .section-subtitle { color: rgba(255,255,255,0.7); margin-bottom: 32px; }

.cta-features {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.cta-feature {
  display: flex;
  align-items: center;
  gap: 12px;
  color: rgba(255,255,255,0.85);
  font-size: 0.9rem;
}

.cta-feature-icon {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  background: rgba(26,110,60,0.4);
  border: 1px solid rgba(26,110,60,0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  flex-shrink: 0;
}

.cta-form-box {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.12);
  backdrop-filter: blur(10px);
  border-radius: 16px;
  padding: 40px 36px;
}

.cta-form-box h3 {
  font-size: 1.2rem;
  color: var(--white);
  margin-bottom: 6px;
}

.cta-form-box p {
  font-size: 0.87rem;
  color: rgba(255,255,255,0.6);
  margin-bottom: 28px;
}

.cta-form-box .form-group label { color: rgba(255,255,255,0.75); }

.cta-form-box .form-group input,
.cta-form-box .form-group select {
  background: rgba(255,255,255,0.08);
  border-color: rgba(255,255,255,0.15);
  color: var(--white);
}

.cta-form-box .form-group input::placeholder { color: rgba(255,255,255,0.4); }

.cta-form-box .form-group input:focus,
.cta-form-box .form-group select:focus {
  border-color: var(--amber);
  box-shadow: 0 0 0 3px rgba(245,158,11,0.15);
}

.cta-form-box .form-group select option { background: var(--dark); color: var(--white); }

/* ============================================================
   FOOTER
   ============================================================ */
#footer {
  background: #060e07;
  padding: 72px 0 0;
  color: rgba(255,255,255,0.7);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 48px;
  margin-bottom: 56px;
}

.footer-brand .logo-text .brand-name { font-size: 1rem; }

.footer-tagline {
  font-size: 0.88rem;
  color: rgba(255,255,255,0.5);
  margin: 14px 0 24px;
  line-height: 1.7;
  max-width: 280px;
}

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

.social-btn {
  width: 38px;
  height: 38px;
  border-radius: 8px;
  background: rgba(255,255,255,0.07);
  border: 1px solid rgba(255,255,255,0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.95rem;
  color: rgba(255,255,255,0.7);
  transition: all var(--transition);
  cursor: pointer;
}

.social-btn:hover {
  background: var(--green);
  border-color: var(--green);
  color: var(--white);
  transform: translateY(-2px);
}

.footer-col h4 {
  font-family: var(--font-head);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--white);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 20px;
}

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

.footer-links a {
  font-size: 0.88rem;
  color: rgba(255,255,255,0.55);
  transition: color var(--transition), padding-left var(--transition);
}

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

.footer-contact-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 14px;
}

.footer-contact-item .icon {
  font-size: 1rem;
  margin-top: 2px;
  flex-shrink: 0;
  color: var(--amber);
}

.footer-contact-item span {
  font-size: 0.87rem;
  color: rgba(255,255,255,0.55);
  line-height: 1.6;
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.07);
  padding: 24px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

.footer-bottom p {
  font-size: 0.82rem;
  color: rgba(255,255,255,0.35);
}

.footer-bottom a {
  color: rgba(255,255,255,0.35);
  transition: color var(--transition);
}
.footer-bottom a:hover { color: var(--amber); }

.footer-mst {
  font-size: 0.78rem;
  color: rgba(255,255,255,0.3);
  font-style: italic;
}

/* ============================================================
   SCROLL ANIMATIONS
   ============================================================ */
.fade-up {
  opacity: 0;
  transform: translateY(36px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

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

.fade-up:nth-child(2) { transition-delay: 0.1s; }
.fade-up:nth-child(3) { transition-delay: 0.2s; }
.fade-up:nth-child(4) { transition-delay: 0.3s; }
.fade-up:nth-child(5) { transition-delay: 0.4s; }
.fade-up:nth-child(6) { transition-delay: 0.5s; }

/* ============================================================
   UTILITY
   ============================================================ */
.text-center { text-align: center; }
.mt-4 { margin-top: 16px; }
.mt-8 { margin-top: 32px; }

/* Back to top button */
#back-to-top {
  position: fixed;
  bottom: 28px;
  right: 28px;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: var(--green);
  color: var(--white);
  border: none;
  cursor: pointer;
  font-size: 1.1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 16px rgba(26,110,60,0.5);
  opacity: 0;
  transform: translateY(16px);
  transition: all var(--transition);
  z-index: 800;
}
#back-to-top.show { opacity: 1; transform: translateY(0); }
#back-to-top:hover { background: var(--amber); box-shadow: 0 4px 16px rgba(245,158,11,0.5); }

/* Toast notification */
.toast {
  position: fixed;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: var(--green);
  color: var(--white);
  padding: 14px 28px;
  border-radius: 8px;
  font-size: 0.92rem;
  font-weight: 600;
  box-shadow: 0 8px 30px rgba(0,0,0,0.25);
  opacity: 0;
  transition: all 0.4s ease;
  z-index: 9999;
  pointer-events: none;
  white-space: nowrap;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1024px) {
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .stats-grid    { grid-template-columns: repeat(2, 1fr); }
  .stat-item:nth-child(2) { border-right: none; }
  .team-grid     { grid-template-columns: repeat(2, 1fr); }
  .blog-grid     { grid-template-columns: repeat(2, 1fr); }
  .blog-grid .blog-card:last-child { display: none; }
  .footer-grid   { grid-template-columns: 1fr 1fr; gap: 36px; }
  .lead-inner    { gap: 40px; }
  .heritage-col  { padding: 40px 36px; }
}

@media (max-width: 768px) {
  .nav-links  { display: none; }
  .hamburger  { display: flex; }

  .hero-title { font-size: 2.2rem; }
  .hero-buttons { flex-direction: column; align-items: flex-start; }

  .features-grid  { grid-template-columns: 1fr; }
  .services-grid  { grid-template-columns: 1fr; }
  .lead-inner     { grid-template-columns: 1fr; gap: 36px; }
  .form-row       { grid-template-columns: 1fr; }
  .stats-grid     { grid-template-columns: repeat(2, 1fr); }
  .team-grid      { grid-template-columns: 1fr; gap: 24px; }
  .heritage-grid  { grid-template-columns: 1fr; }
  .heritage-col:last-child { border-left: 1px solid rgba(245,158,11,0.2); border-top: none; }
  .blog-grid      { grid-template-columns: 1fr; }
  .blog-grid .blog-card:last-child { display: block; }
  .blog-header    { flex-direction: column; align-items: flex-start; gap: 16px; }
  .cta-inner      { grid-template-columns: 1fr; gap: 36px; }
  .cta-text       { padding-right: 0; }
  .footer-grid    { grid-template-columns: 1fr; gap: 36px; }
  .footer-bottom  { flex-direction: column; text-align: center; }

  #hero { min-height: 100svh; }
  .hero-bg { background-attachment: scroll; }
}

@media (max-width: 480px) {
  .container { padding: 0 16px; }
  #vision, #services, #lead-form, #leadership, #heritage, #blog, #cta { padding: 72px 0; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .stat-item { padding: 24px 16px; }
  .lead-form-box { padding: 28px 22px; }
  .cta-form-box  { padding: 28px 22px; }
  .heritage-col  { padding: 36px 28px; }
}