/* ==========================================================================
   DaiPhatPlastic — Clean Industrial Luxury Design System v3.0
   Tone Trắng Sáng Tinh Tế — Đẳng Cấp — Hiện Đại — Tập Trung Hình Ảnh Minh Họa
   ========================================================================== */

:root {
  /* --- Clean White Palette & Fresh Eco Tones --- */
  --white: #ffffff;
  --bg-page: #ffffff;
  --bg-subtle: #f8fafc;
  --bg-card: #ffffff;
  --bg-hover: #f1f5f9;

  /* --- Text & Inks --- */
  --text-primary: #0f172a;
  --text-secondary: #334155;
  --text-muted: #64748b;
  --text-light: #94a3b8;

  /* --- Eco Brand Accents --- */
  --green-800: #065f46;
  --green-700: #047857;
  --green-600: #059669;
  --green-500: #10b981;
  --green-400: #34d399;
  --green-100: #d1fae5;
  --green-50:  #ecfdf5;

  --pet-700: #0369a1;
  --pet-600: #0284c7;
  --pet-500: #0ea5e9;
  --pet-100: #e0f2fe;
  --pet-50:  #f0f9ff;

  --navy-900: #0f172a;
  --navy-800: #1e293b;

  /* --- Borders & Outlines --- */
  --border-light: #e2e8f0;
  --border-subtle: #edf2f7;
  --border-hover: #cbd5e1;
  --border-accent: #10b981;

  /* --- Multi-layered Soft Shadows --- */
  --shadow-xs: 0 1px 2px rgba(15, 23, 42, 0.04);
  --shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.06);
  --shadow-md: 0 8px 24px -4px rgba(15, 23, 42, 0.08), 0 2px 6px -1px rgba(15, 23, 42, 0.03);
  --shadow-lg: 0 16px 36px -6px rgba(15, 23, 42, 0.1), 0 4px 12px -2px rgba(15, 23, 42, 0.04);
  --shadow-hover: 0 20px 40px -8px rgba(5, 150, 105, 0.14), 0 6px 16px -3px rgba(15, 23, 42, 0.06);

  /* --- Sizing & Typography --- */
  --font: 'Be Vietnam Pro', 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --max-w: 1220px;
  --header-h: 74px;
  --topbar-h: 36px;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 26px;
  --radius-full: 9999px;
  --transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-smooth: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + var(--topbar-h) + 16px);
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font);
  background-color: var(--bg-page);
  color: var(--text-primary);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

img, svg {
  display: block;
  max-width: 100%;
}

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

button, input, select, textarea {
  font: inherit;
  color: inherit;
}

button {
  background: none;
  border: none;
  cursor: pointer;
}

ul, ol {
  list-style: none;
}

::selection {
  background: var(--green-500);
  color: #ffffff;
}

/* ==========================================================================
   Typography & Shared Layout
   ========================================================================== */
.container {
  width: 100%;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 88px 0;
  position: relative;
}

.section-alt {
  background-color: var(--bg-subtle);
  border-top: 1px solid var(--border-light);
  border-bottom: 1px solid var(--border-light);
}

.section-head {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 52px;
}

.section-head.text-left {
  text-align: left;
  margin-left: 0;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--green-700);
  background: var(--green-50);
  border: 1px solid var(--green-100);
  padding: 5px 14px;
  border-radius: var(--radius-full);
  margin-bottom: 14px;
}

.eyebrow-dot {
  width: 7px;
  height: 7px;
  background: var(--green-500);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--green-400);
  animation: pulse-dot 2s infinite;
}

.section-title {
  font-size: clamp(28px, 3.2vw, 40px);
  font-weight: 800;
  line-height: 1.22;
  color: var(--text-primary);
  letter-spacing: -0.025em;
  margin-bottom: 14px;
}

.section-title span.text-emerald {
  color: var(--green-600);
}

.section-title span.text-pet {
  color: var(--pet-600);
}

.section-desc {
  font-size: clamp(15.5px, 1.3vw, 17.5px);
  color: var(--text-secondary);
  line-height: 1.68;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  padding: 12px 24px;
  font-size: 14.5px;
  font-weight: 700;
  border-radius: var(--radius-full);
  line-height: 1;
  white-space: nowrap;
  position: relative;
  overflow: hidden;
  transition: var(--transition);
  cursor: pointer;
  border: 1.5px solid transparent;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn:active {
  transform: translateY(0);
}

.btn-primary {
  background: var(--green-600);
  color: #ffffff;
  box-shadow: 0 6px 18px -2px rgba(5, 150, 105, 0.35);
}

.btn-primary:hover {
  background: var(--green-700);
  box-shadow: 0 10px 24px -2px rgba(5, 150, 105, 0.45);
}

.btn-pet {
  background: var(--pet-600);
  color: #ffffff;
  box-shadow: 0 6px 18px -2px rgba(2, 132, 199, 0.35);
}

.btn-pet:hover {
  background: var(--pet-700);
}

.btn-outline {
  background: #ffffff;
  color: var(--text-primary);
  border-color: var(--border-light);
  box-shadow: var(--shadow-xs);
}

.btn-outline:hover {
  border-color: var(--green-600);
  color: var(--green-700);
  background: var(--green-50);
}

.btn-navy {
  background: var(--navy-900);
  color: #ffffff;
}

.btn-navy:hover {
  background: var(--navy-800);
}

@keyframes pulse-dot {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.35); opacity: 0.6; }
}

/* ==========================================================================
   Top Announcement Bar (Sạch sẽ, Tinh tế)
   ========================================================================== */
.top-bar {
  height: var(--topbar-h);
  background: var(--bg-subtle);
  color: var(--text-secondary);
  font-size: 12.5px;
  border-bottom: 1px solid var(--border-light);
  position: relative;
  z-index: 110;
}

.top-bar-inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.top-bar-left {
  display: flex;
  align-items: center;
  gap: 20px;
}

.top-bar-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.top-bar-item svg {
  width: 14px;
  height: 14px;
  color: var(--green-600);
}

.top-bar-right {
  display: flex;
  align-items: center;
  gap: 16px;
}

.top-bar-badge {
  background: var(--green-100);
  color: var(--green-800);
  font-size: 11px;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: var(--radius-full);
  display: inline-flex;
  align-items: center;
  gap: 5px;
}

.top-bar-badge::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--green-600);
  animation: pulse-dot 1.8s infinite;
}

/* ==========================================================================
   Site Header (Glassmorphism Tone Trắng)
   ========================================================================== */
.site-header {
  position: sticky;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--header-h);
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-light);
  transition: var(--transition-smooth);
}

.site-header.scrolled {
  background: rgba(255, 255, 255, 0.98);
  box-shadow: var(--shadow-sm);
}

.scroll-progress {
  position: absolute;
  left: 0;
  bottom: 0;
  height: 2.5px;
  background: linear-gradient(90deg, var(--green-500), var(--pet-500));
  width: 0%;
  transition: width 0.1s linear;
  z-index: 101;
}

.header-inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

/* Logo */
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 20px;
  color: var(--navy-900);
  letter-spacing: -0.025em;
  user-select: none;
}

.logo-symbol {
  width: 44px;
  height: 44px;
  display: block;
  flex: 0 0 44px;
  object-fit: contain;
  filter: drop-shadow(0 5px 8px rgba(10, 37, 64, 0.14));
}

.logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}

.logo-text .brand-name {
  font-size: 19px;
  font-weight: 900;
  letter-spacing: -0.03em;
}

.logo-text .brand-name em {
  font-style: normal;
  color: var(--green-600);
}

.logo-text .brand-sub {
  font-size: 8px;
  font-weight: 700;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--text-muted);
}

/* Nav Links */
.nav {
  display: flex;
  align-items: center;
  gap: 28px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 24px;
}

.nav-links a {
  font-size: 14.5px;
  font-weight: 600;
  color: var(--text-secondary);
  padding: 6px 0;
  position: relative;
  transition: color 0.2s;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--green-700);
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--green-600);
  border-radius: var(--radius-full);
  transition: width 0.25s;
}

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

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.header-phone-pill {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: var(--bg-subtle);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-full);
  font-size: 13.5px;
  font-weight: 700;
  color: var(--text-primary);
  transition: var(--transition);
}

.header-phone-pill:hover {
  background: var(--green-50);
  border-color: var(--green-500);
  color: var(--green-700);
}

.header-phone-pill .pulse-indicator {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--green-500);
}

/* Mobile Toggle */
.nav-toggle {
  display: none;
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: var(--bg-subtle);
  border: 1px solid var(--border-light);
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  cursor: pointer;
}

.nav-toggle span {
  width: 20px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 99px;
  transition: transform 0.25s, opacity 0.25s;
}

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

.mobile-nav {
  position: fixed;
  top: calc(var(--header-h) + var(--topbar-h));
  left: 0;
  right: 0;
  background: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-light);
  padding: 20px 24px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  box-shadow: var(--shadow-lg);
  transform: translateY(-120%);
  opacity: 0;
  pointer-events: none;
  transition: transform 0.3s ease, opacity 0.25s ease;
  z-index: 99;
}

.mobile-nav.open {
  transform: translateY(0);
  opacity: 1;
  pointer-events: auto;
}

.mobile-nav a {
  padding: 12px 14px;
  font-size: 15px;
  font-weight: 700;
  color: var(--text-primary);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.mobile-nav a:hover {
  background: var(--bg-subtle);
  color: var(--green-600);
}

/* ==========================================================================
   Hero Section (Tone Trắng Sáng + Photo Showcase Hoành Tráng)
   ========================================================================== */
.hero {
  background: linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);
  padding: 64px 0 80px;
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--border-light);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 48px;
  align-items: center;
}

.hero-content {
  max-width: 640px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--green-50);
  border: 1px solid var(--green-100);
  padding: 6px 14px;
  border-radius: var(--radius-full);
  font-size: 12.5px;
  font-weight: 700;
  color: var(--green-700);
  margin-bottom: 20px;
}

.hero h1 {
  font-size: clamp(32px, 3.8vw, 50px);
  font-weight: 900;
  line-height: 1.16;
  letter-spacing: -0.03em;
  color: var(--text-primary);
  margin-bottom: 18px;
}

.hero h1 span.highlight-green {
  color: var(--green-600);
}

.hero h1 span.highlight-pet {
  color: var(--pet-600);
}

.hero-sub {
  font-size: clamp(16px, 1.35vw, 18px);
  line-height: 1.7;
  color: var(--text-secondary);
  margin-bottom: 32px;
}

.hero-sub strong {
  color: var(--text-primary);
}

.hero-ctas {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
  margin-bottom: 36px;
}

.hero-highlights {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  padding-top: 24px;
  border-top: 1px solid var(--border-light);
}

.highlight-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 700;
  color: var(--text-primary);
}

.highlight-item svg {
  width: 18px;
  height: 18px;
  color: var(--green-600);
  flex-shrink: 0;
}

/* Photo Collage in Hero (Right Column) */
.hero-visual {
  position: relative;
}

.hero-visual-card {
  background: #ffffff;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  position: relative;
}

.hero-visual-img {
  width: 100%;
  height: 380px;
  object-fit: cover;
}

.hero-visual-badge {
  position: absolute;
  top: 16px;
  left: 16px;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(8px);
  border: 1px solid var(--border-light);
  padding: 6px 14px;
  border-radius: var(--radius-full);
  font-size: 12px;
  font-weight: 800;
  color: var(--green-700);
  display: flex;
  align-items: center;
  gap: 6px;
  box-shadow: var(--shadow-xs);
}

.hero-stat-floating {
  position: absolute;
  bottom: -20px;
  right: -10px;
  background: #ffffff;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 16px 20px;
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  gap: 14px;
}

.hero-stat-floating .stat-circle {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: var(--green-100);
  color: var(--green-700);
  display: grid;
  place-items: center;
  font-size: 20px;
}

.hero-stat-floating strong {
  display: block;
  font-size: 18px;
  font-weight: 900;
  color: var(--text-primary);
  line-height: 1.1;
}

.hero-stat-floating span {
  font-size: 12px;
  color: var(--text-muted);
}

/* ==========================================================================
   Marquee Bar (Thanh Cam Kết Tinh Tế)
   ========================================================================== */
.trust-marquee {
  background: #ffffff;
  border-bottom: 1px solid var(--border-light);
  overflow: hidden;
  padding: 14px 0;
}

.marquee-track {
  display: flex;
  align-items: center;
  gap: 48px;
  animation: marquee 30s linear infinite;
  white-space: nowrap;
  width: max-content;
}

.marquee-track:hover {
  animation-play-state: paused;
}

.marquee-item {
  font-size: 13.5px;
  font-weight: 700;
  color: var(--text-secondary);
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.marquee-item svg {
  color: var(--green-600);
  width: 16px;
  height: 16px;
}

@keyframes marquee {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

/* ==========================================================================
   Stats Bar (Tone Trắng Sạch Sẽ)
   ========================================================================== */
.stats-bar {
  padding: 56px 0;
  background: #ffffff;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.stat-card {
  background: var(--bg-subtle);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 28px 20px;
  text-align: center;
  transition: var(--transition);
}

.stat-card:hover {
  background: #ffffff;
  border-color: var(--green-500);
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}

.stat-num {
  font-size: clamp(32px, 2.8vw, 42px);
  font-weight: 900;
  color: var(--text-primary);
  line-height: 1.1;
  margin-bottom: 4px;
}

.stat-num em {
  font-style: normal;
  color: var(--green-600);
}

.stat-label {
  font-size: 14.5px;
  font-weight: 700;
  color: var(--text-secondary);
  margin-bottom: 4px;
}

.stat-sub {
  font-size: 12px;
  color: var(--text-muted);
}

/* ==========================================================================
   About Section (Giới Thiệu Đẳng Cấp & Ảnh Thực Tế Lớn)
   ========================================================================== */
.about-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 48px;
  align-items: center;
}

.about-text h3 {
  font-size: clamp(24px, 2.4vw, 32px);
  font-weight: 800;
  color: var(--text-primary);
  line-height: 1.3;
  margin-bottom: 16px;
}

.about-text p.lead {
  font-size: 16px;
  color: var(--text-secondary);
  line-height: 1.75;
  margin-bottom: 24px;
}

.commit-list {
  display: grid;
  gap: 14px;
  margin-bottom: 32px;
}

.commit-card {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  background: #ffffff;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 16px;
  transition: var(--transition);
}

.commit-card:hover {
  border-color: var(--green-500);
  box-shadow: var(--shadow-sm);
  transform: translateY(-2px);
}

.commit-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: var(--green-50);
  color: var(--green-700);
  display: grid;
  place-items: center;
  flex-shrink: 0;
}

.commit-content strong {
  display: block;
  font-size: 14.5px;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 2px;
}

.commit-content span {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* About Photos Stack */
.about-photos {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.photo-card {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-sm);
  position: relative;
}

.photo-card img {
  width: 100%;
  height: 240px;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.photo-card:hover img {
  transform: scale(1.05);
}

.photo-card-tall {
  grid-column: 1 / -1;
}

.photo-card-tall img {
  height: 260px;
}

.photo-caption-pill {
  position: absolute;
  bottom: 12px;
  left: 12px;
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(6px);
  padding: 4px 12px;
  border-radius: var(--radius-full);
  font-size: 11.5px;
  font-weight: 700;
  color: var(--text-primary);
  box-shadow: var(--shadow-xs);
}

/* ==========================================================================
   Process 5 Steps (Đơn giản, Trực quan, Đẹp mắt)
   ========================================================================== */
.process-steps-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
  margin-bottom: 40px;
}

.process-step {
  background: #ffffff;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 24px 18px;
  box-shadow: var(--shadow-xs);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}

.process-step:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--green-500);
}

.step-badge {
  width: 34px;
  height: 34px;
  border-radius: 8px;
  background: var(--navy-900);
  color: #ffffff;
  font-size: 13px;
  font-weight: 800;
  display: grid;
  place-items: center;
  margin-bottom: 14px;
}

.process-step.step-final .step-badge {
  background: var(--green-600);
}

.process-step h4 {
  font-size: 15.5px;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.process-step p {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.55;
}

/* Machinery Highlight Box */
.machinery-box {
  background: #ffffff;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  align-items: center;
}

.machinery-img {
  height: 100%;
  min-height: 280px;
}

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

.machinery-content {
  padding: 36px;
}

.machinery-content h4 {
  font-size: 20px;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 10px;
}

.machinery-content p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.65;
  margin-bottom: 18px;
}

.machinery-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.machinery-tags span {
  font-size: 12px;
  font-weight: 700;
  background: var(--bg-subtle);
  border: 1px solid var(--border-light);
  padding: 5px 12px;
  border-radius: var(--radius-full);
  color: var(--text-primary);
}

/* ==========================================================================
   Products Showcase (Ảnh Lớn, Thông Tin Rõ Ràng)
   ========================================================================== */
.products-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.product-card {
  background: #ffffff;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  transition: var(--transition);
}

.product-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
  border-color: var(--green-500);
}

.product-img-wrap {
  position: relative;
  height: 240px;
  overflow: hidden;
  background: var(--bg-subtle);
}

.product-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

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

.product-tag {
  position: absolute;
  top: 14px;
  left: 14px;
  font-size: 11.5px;
  font-weight: 800;
  padding: 4px 12px;
  border-radius: var(--radius-full);
}

.tag-buy {
  background: var(--pet-600);
  color: #ffffff;
}

.tag-hot {
  background: var(--green-600);
  color: #ffffff;
}

.tag-hdpe {
  background: var(--navy-900);
  color: #ffffff;
}

.product-body {
  padding: 26px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.product-body h3 {
  font-size: 19px;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.product-body p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 18px;
}

.product-specs {
  list-style: none;
  display: grid;
  gap: 8px;
  margin-bottom: 24px;
  background: var(--bg-subtle);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 14px;
}

.product-specs li {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-size: 13px;
  color: var(--text-primary);
  line-height: 1.5;
}

.product-specs li svg {
  width: 16px;
  height: 16px;
  color: var(--green-600);
  flex-shrink: 0;
  margin-top: 2px;
}

.product-footer {
  margin-top: auto;
}

.product-footer .btn {
  width: 100%;
}

/* ==========================================================================
   Photo Gallery (Showcase Hình Ảnh Rực Rỡ, Đầy Đủ Ảnh Minh Họa)
   ========================================================================== */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.gallery-item {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border-light);
  aspect-ratio: 4/3;
  cursor: pointer;
  box-shadow: var(--shadow-xs);
  background: var(--bg-subtle);
}

.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.gallery-item:hover img {
  transform: scale(1.08);
}

.gallery-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(15, 23, 42, 0.75) 0%, transparent 60%);
  opacity: 0;
  display: flex;
  align-items: flex-end;
  padding: 16px;
  transition: opacity 0.3s ease;
}

.gallery-item:hover .gallery-overlay {
  opacity: 1;
}

.gallery-overlay span {
  color: #ffffff;
  font-size: 13px;
  font-weight: 700;
}

.gallery-zoom-badge {
  position: absolute;
  top: 12px;
  right: 12px;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.9);
  display: grid;
  place-items: center;
  font-size: 14px;
  opacity: 0;
  transform: translateY(-6px);
  transition: var(--transition);
}

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

/* Lightbox Modal */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 1000;
  background: rgba(15, 23, 42, 0.92);
  backdrop-filter: blur(10px);
  display: none;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.lightbox.open {
  display: flex;
}

.lightbox-content {
  position: relative;
  max-width: 90vw;
  max-height: 85vh;
  text-align: center;
}

.lightbox img {
  max-width: 100%;
  max-height: 80vh;
  border-radius: var(--radius-md);
  box-shadow: 0 25px 50px rgba(0, 0, 0, 0.4);
}

.lightbox-caption {
  margin-top: 12px;
  color: #ffffff;
  font-size: 15px;
  font-weight: 700;
}

.lightbox-close {
  position: absolute;
  top: 24px;
  right: 24px;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.2);
  color: #ffffff;
  font-size: 20px;
  display: grid;
  place-items: center;
  cursor: pointer;
}

/* ==========================================================================
   Testimonials (Khách Hàng Nói Gì — Card Trắng Tinh Tế)
   ========================================================================== */
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.testimonial-card {
  background: #ffffff;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-xl);
  padding: 30px;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
}

.testimonial-stars {
  color: #f59e0b;
  font-size: 15px;
  margin-bottom: 14px;
}

.testimonial-card blockquote {
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--text-secondary);
  margin-bottom: 20px;
  flex-grow: 1;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 12px;
  border-top: 1px solid var(--border-light);
  padding-top: 16px;
}

.author-avatar {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: var(--green-100);
  color: var(--green-800);
  display: grid;
  place-items: center;
  font-weight: 800;
  font-size: 15px;
}

.author-info strong {
  display: block;
  font-size: 14px;
  font-weight: 800;
  color: var(--text-primary);
}

.author-info span {
  font-size: 12px;
  color: var(--text-muted);
}

/* ==========================================================================
   CTA Banner (Tone Sáng Sủa, Nhã Nhặn)
   ========================================================================== */
.cta-banner {
  background: linear-gradient(135deg, var(--green-50) 0%, #ffffff 50%, var(--pet-50) 100%);
  border-top: 1px solid var(--border-light);
  border-bottom: 1px solid var(--border-light);
  padding: 64px 0;
}

.cta-banner-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
}

.cta-banner-text h2 {
  font-size: clamp(24px, 2.6vw, 34px);
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.cta-banner-text p {
  font-size: 15.5px;
  color: var(--text-secondary);
  max-width: 580px;
}

.cta-banner-actions {
  display: flex;
  align-items: center;
  gap: 14px;
}

/* ==========================================================================
   Contact Section (Tone Trắng Sáng Hoàn Toàn)
   ========================================================================== */
.contact-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 36px;
  align-items: start;
}

.contact-card-form {
  background: #ffffff;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-xl);
  padding: 36px;
  box-shadow: var(--shadow-sm);
}

.contact-form {
  display: grid;
  gap: 18px;
}

.form-row-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}

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

.form-group label {
  font-size: 13.5px;
  font-weight: 700;
  color: var(--text-primary);
}

.form-group label span.req {
  color: #dc2626;
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: 12px 16px;
  font-size: 14px;
  background: #ffffff;
  border: 1.5px solid var(--border-light);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  outline: none;
  transition: var(--transition);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  border-color: var(--green-600);
  box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.15);
}

.form-textarea {
  resize: vertical;
  min-height: 96px;
}

.field-error {
  font-size: 12px;
  color: #dc2626;
  font-weight: 600;
}

/* Contact Sidebar (Tone Trắng Sáng) */
.contact-sidebar {
  display: grid;
  gap: 20px;
}

.info-card-clean {
  background: #ffffff;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-xl);
  padding: 32px;
  box-shadow: var(--shadow-sm);
}

.info-card-clean h3 {
  font-size: 19px;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 20px;
}

.info-list {
  display: grid;
  gap: 18px;
}

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

.info-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: var(--green-50);
  color: var(--green-700);
  display: grid;
  place-items: center;
  flex-shrink: 0;
  font-size: 18px;
}

.info-content strong {
  display: block;
  font-size: 12.5px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 2px;
}

.info-content a,
.info-content span {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-primary);
}

.info-content a:hover {
  color: var(--green-600);
}

.map-card-clean {
  background: #ffffff;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  padding: 8px;
}

.map-card-clean iframe {
  width: 100%;
  height: 220px;
  border: 0;
  border-radius: var(--radius-md);
  display: block;
}

/* ==========================================================================
   Footer (Tone Trắng / Xám Nhạt Thanh Lịch)
   ========================================================================== */
.site-footer {
  background: var(--bg-subtle);
  border-top: 1px solid var(--border-light);
  color: var(--text-secondary);
  padding: 64px 0 24px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 0.9fr 0.9fr 1.2fr;
  gap: 40px;
  margin-bottom: 48px;
}

.footer-brand p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin: 14px 0 16px;
}

.footer-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.footer-badge {
  background: #ffffff;
  border: 1px solid var(--border-light);
  font-size: 11px;
  font-weight: 700;
  color: var(--text-primary);
  padding: 4px 10px;
  border-radius: var(--radius-full);
}

.footer-col h4 {
  font-size: 13.5px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-primary);
  margin-bottom: 16px;
}

.footer-links {
  display: grid;
  gap: 10px;
}

.footer-links a {
  font-size: 14px;
  color: var(--text-secondary);
}

.footer-links a:hover {
  color: var(--green-600);
}

.footer-contact-list {
  display: grid;
  gap: 12px;
}

.footer-contact-list li {
  font-size: 13.5px;
  color: var(--text-secondary);
  line-height: 1.5;
}

.footer-contact-list strong {
  color: var(--text-primary);
}

.footer-bottom {
  padding-top: 24px;
  border-top: 1px solid var(--border-light);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 14px;
  font-size: 13px;
  color: var(--text-muted);
}

/* ==========================================================================
   Floating Buttons (Zalo, Hotline, Top)
   ========================================================================== */
.floating-hub {
  position: fixed;
  right: 24px;
  bottom: 28px;
  z-index: 95;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.float-btn {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  box-shadow: var(--shadow-lg);
  cursor: pointer;
  transition: var(--transition);
}

.float-btn:hover {
  transform: scale(1.1) translateY(-2px);
}

.float-zalo {
  background: #0084ff;
  color: #ffffff;
}

.float-phone {
  background: var(--green-600);
  color: #ffffff;
}

.float-top {
  background: #ffffff;
  color: var(--text-primary);
  border: 1.5px solid var(--border-light);
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
}

.float-top.show {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

/* Mobile Quick Bar */
.mobile-bottom-bar {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: 58px;
  background: rgba(255, 255, 255, 0.98);
  border-top: 1px solid var(--border-light);
  box-shadow: 0 -4px 16px rgba(0, 0, 0, 0.06);
  z-index: 90;
  grid-template-columns: 1fr 1fr;
}

.mobile-bottom-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 700;
}

.mobile-bottom-btn.btn-call {
  background: var(--green-600);
  color: #ffffff;
}

.mobile-bottom-btn.btn-zalo {
  background: #ffffff;
  color: #0084ff;
}

/* Scroll Reveal */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }

/* Toast */
.toast {
  position: fixed;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%) translateY(30px);
  background: var(--navy-900);
  color: #ffffff;
  padding: 12px 22px;
  border-radius: var(--radius-full);
  font-size: 14px;
  font-weight: 700;
  box-shadow: var(--shadow-lg);
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
  z-index: 1050;
}

.toast.show {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

.toast.toast--success {
  background: var(--green-700);
}

.toast.toast--error {
  background: #dc2626;
}

/* ==========================================================================
   Responsive
   ========================================================================== */
@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 36px;
  }
  .about-grid {
    grid-template-columns: 1fr;
    gap: 36px;
  }
  .products-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .gallery-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  .process-steps-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  .machinery-box {
    grid-template-columns: 1fr;
  }
  .contact-grid {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  :root {
    --header-h: 66px;
    --topbar-h: 0px;
  }
  .top-bar {
    display: none;
  }
  .nav-links, .header-phone-pill {
    display: none;
  }
  .nav-toggle {
    display: flex;
  }
  .section {
    padding: 64px 0;
  }
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .process-steps-grid {
    grid-template-columns: 1fr;
  }
  .products-grid {
    grid-template-columns: 1fr;
  }
  .gallery-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .testimonials-grid {
    grid-template-columns: 1fr;
  }
  .hero-highlights {
    grid-template-columns: 1fr;
  }
  .form-row-2 {
    grid-template-columns: 1fr;
  }
  .mobile-bottom-bar {
    display: grid;
  }
  body {
    padding-bottom: 58px;
  }
}

@media (max-width: 520px) {
  .container {
    padding: 0 16px;
  }
  .hero {
    padding: 44px 0 54px;
  }
  .hero-ctas {
    flex-direction: column;
    width: 100%;
  }
  .hero-ctas .btn {
    width: 100%;
  }
  .stats-grid {
    grid-template-columns: 1fr;
  }
  .gallery-grid {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .contact-card-form {
    padding: 24px;
  }
}