/* ==========================================================================
   CÔNG TY CỔ PHẦN XÂY DỰNG BÁCH TRƯỜNG PHÁT (BTP)
   Theme: Modern Sky Blue • Youthful • Dynamic • High Performance
   ========================================================================== */

:root {
  /* Sky Blue Core Palette */
  --primary-50: #f0f9ff;
  --primary-100: #e0f2fe;
  --primary-200: #bae6fd;
  --primary-300: #7dd3fc;
  --primary-400: #38bdf8;
  --primary-500: #0ea5e9;
  --primary-600: #0284c7; /* Main Brand Sky Blue */
  --primary-700: #0369a1;
  --primary-800: #075985;
  --primary-900: #0c4a6e;
  --primary-950: #082f49;

  /* Brand Accents */
  --accent-red: #ef4444;
  --accent-red-hover: #dc2626;
  --accent-gold: #f59e0b;
  --accent-gold-light: #fef3c7;
  --accent-teal: #14b8a6;

  /* Neutrals */
  --dark-900: #0f172a;
  --dark-800: #1e293b;
  --dark-700: #334155;
  --dark-600: #475569;
  --gray-500: #64748b;
  --gray-400: #94a3b8;
  --gray-300: #cbd5e1;
  --gray-200: #e2e8f0;
  --gray-100: #f1f5f9;
  --gray-50: #f8fafc;
  --white: #ffffff;

  /* Layout & Elevation */
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --radius-full: 9999px;

  --shadow-sm: 0 2px 8px rgba(2, 132, 199, 0.08);
  --shadow-md: 0 8px 24px rgba(2, 132, 199, 0.12);
  --shadow-lg: 0 16px 36px rgba(2, 132, 199, 0.16);
  --shadow-xl: 0 24px 48px rgba(15, 23, 42, 0.18);
  --shadow-glow: 0 0 25px rgba(14, 165, 233, 0.4);

  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-bounce: 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
}

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

html {
  scroll-behavior: smooth;
  font-family: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
  color: var(--dark-800);
  background-color: #fbfdff;
  line-height: 1.6;
}

body {
  overflow-x: hidden;
  background-color: #fbfdff;
}

h1, h2, h3, h4, h5, h6 {
  font-family: 'Montserrat', 'Plus Jakarta Sans', sans-serif;
  font-weight: 700;
  color: var(--dark-900);
  line-height: 1.25;
}

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

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

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
  outline: none;
}

input, textarea, select {
  font-family: inherit;
  outline: none;
}

.container {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Utility Classes */
.text-gradient-sky {
  background: linear-gradient(135deg, var(--primary-600) 0%, var(--primary-400) 100%);
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.text-gradient-fire {
  background: linear-gradient(135deg, #ef4444 0%, #f59e0b 100%);
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.badge-sky {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: rgba(14, 165, 233, 0.12);
  color: var(--primary-700);
  border: 1px solid rgba(14, 165, 233, 0.3);
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

.badge-sky i {
  color: var(--primary-500);
}

/* Top Bar */
.topbar {
  background: var(--dark-900);
  color: var(--gray-300);
  font-size: 0.82rem;
  padding: 8px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.topbar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

.topbar-left, .topbar-right {
  display: flex;
  align-items: center;
  gap: 20px;
}

.topbar-item {
  display: flex;
  align-items: center;
  gap: 8px;
}

.topbar-item i {
  color: var(--primary-400);
}

.topbar-item a:hover {
  color: var(--white);
}

.topbar-highlight {
  color: var(--accent-gold);
  font-weight: 600;
}

/* Header & Navigation */
.header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(2, 132, 199, 0.12);
  transition: all 0.3s ease;
  box-shadow: 0 4px 20px rgba(15, 23, 42, 0.04);
}

.header.scrolled {
  box-shadow: 0 8px 30px rgba(2, 132, 199, 0.14);
  background: rgba(255, 255, 255, 0.98);
}

.header-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 20px;
}

.logo-link {
  display: flex;
  align-items: center;
  gap: 14px;
}

.brand-logo-img {
  height: 52px;
  width: auto;
  transition: transform var(--transition-fast);
}

.logo-link:hover .brand-logo-img {
  transform: scale(1.03);
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 28px;
  list-style: none;
}

.nav-link {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--dark-700);
  position: relative;
  padding: 8px 2px;
  transition: color var(--transition-fast);
}

.nav-link:hover, .nav-link.active {
  color: var(--primary-600);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0%;
  height: 2.5px;
  background: linear-gradient(90deg, var(--primary-500), var(--primary-600));
  border-radius: 4px;
  transition: width var(--transition-fast);
}

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

.nav-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.btn-hotline {
  display: flex;
  align-items: center;
  gap: 10px;
  background: rgba(239, 68, 68, 0.08);
  padding: 8px 16px;
  border-radius: var(--radius-full);
  border: 1px solid rgba(239, 68, 68, 0.2);
  color: var(--accent-red);
  font-weight: 700;
  font-size: 0.9rem;
  transition: var(--transition-normal);
}

.btn-hotline:hover {
  background: var(--accent-red);
  color: var(--white);
  box-shadow: 0 4px 15px rgba(239, 68, 68, 0.3);
}

.pulse-dot {
  width: 9px;
  height: 9px;
  background-color: var(--accent-red);
  border-radius: 50%;
  box-shadow: 0 0 0 0 rgba(239, 68, 68, 0.7);
  animation: pulse-ring 1.8s infinite;
}

@keyframes pulse-ring {
  0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(239, 68, 68, 0.7); }
  70% { transform: scale(1); box-shadow: 0 0 0 8px rgba(239, 68, 68, 0); }
  100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(239, 68, 68, 0); }
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 12px 24px;
  background: linear-gradient(135deg, var(--primary-500) 0%, var(--primary-600) 100%);
  color: var(--white);
  border-radius: var(--radius-md);
  font-weight: 700;
  font-size: 0.95rem;
  box-shadow: 0 6px 18px rgba(2, 132, 199, 0.32);
  transition: var(--transition-normal);
  border: none;
}

.btn-primary:hover {
  background: linear-gradient(135deg, var(--primary-600) 0%, var(--primary-700) 100%);
  box-shadow: 0 10px 25px rgba(2, 132, 199, 0.45);
  transform: translateY(-2px);
}

.btn-outline {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 12px 24px;
  background: rgba(255, 255, 255, 0.85);
  color: var(--primary-700);
  border: 1.5px solid var(--primary-300);
  border-radius: var(--radius-md);
  font-weight: 700;
  font-size: 0.95rem;
  backdrop-filter: blur(8px);
  transition: var(--transition-normal);
}

.btn-outline:hover {
  background: var(--primary-50);
  border-color: var(--primary-500);
  color: var(--primary-800);
  transform: translateY(-2px);
}

.mobile-toggle {
  display: none;
  font-size: 1.5rem;
  color: var(--dark-800);
  padding: 8px;
}

/* Hero Section */
.hero {
  position: relative;
  padding: 70px 0 100px;
  background: radial-gradient(120% 80% at 50% -10%, #e0f2fe 0%, #f0f9ff 45%, #ffffff 100%);
  overflow: hidden;
}

.hero-bg-elements {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 1;
}

.hero-grid-pattern {
  position: absolute;
  inset: 0;
  background-image: 
    linear-gradient(to right, rgba(2, 132, 199, 0.05) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(2, 132, 199, 0.05) 1px, transparent 1px);
  background-size: 38px 38px;
  mask-image: radial-gradient(ellipse 60% 50% at 50% 30%, #000 70%, transparent 100%);
}

.hero-blob-1 {
  position: absolute;
  top: -10%;
  right: -5%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(56, 189, 248, 0.25) 0%, rgba(14, 165, 233, 0) 70%);
  filter: blur(60px);
  border-radius: 50%;
}

.hero-blob-2 {
  position: absolute;
  bottom: 5%;
  left: -10%;
  width: 450px;
  height: 450px;
  background: radial-gradient(circle, rgba(245, 158, 11, 0.15) 0%, rgba(245, 158, 11, 0) 70%);
  filter: blur(60px);
  border-radius: 50%;
}

.hero-content-wrapper {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 48px;
  align-items: center;
}

.hero-text-col {
  padding-right: 15px;
}

.hero-title {
  font-size: 3.1rem;
  font-weight: 900;
  color: var(--dark-900);
  letter-spacing: -0.8px;
  margin: 18px 0 16px;
  line-height: 1.15;
}

.hero-title span {
  position: relative;
  display: inline-block;
}

.hero-desc {
  font-size: 1.12rem;
  color: var(--dark-600);
  line-height: 1.65;
  margin-bottom: 28px;
}

.hero-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 32px;
}

.hero-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid var(--primary-200);
  border-radius: var(--radius-sm);
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--dark-700);
  box-shadow: 0 2px 8px rgba(2, 132, 199, 0.05);
}

.hero-pill i {
  color: var(--primary-500);
}

.hero-cta-group {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 40px;
}

/* Hero Stats Counter */
.hero-stats-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  padding-top: 24px;
  border-top: 1px solid rgba(2, 132, 199, 0.15);
}

.hero-stat-item {
  text-align: left;
}

.hero-stat-num {
  font-size: 1.85rem;
  font-weight: 900;
  font-family: 'Montserrat', sans-serif;
  color: var(--primary-600);
  line-height: 1;
  margin-bottom: 4px;
}

.hero-stat-label {
  font-size: 0.78rem;
  color: var(--gray-500);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* Hero Quick Contact Form Card */
.hero-card-col {
  position: relative;
}

.hero-form-card {
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(2, 132, 199, 0.18);
  border-radius: var(--radius-xl);
  padding: 34px 30px;
  box-shadow: 0 20px 45px rgba(2, 132, 199, 0.16);
  position: relative;
}

.hero-form-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 20px;
  right: 20px;
  height: 4px;
  background: linear-gradient(90deg, var(--primary-500), var(--accent-red), var(--accent-gold));
  border-radius: 4px;
}

.card-header-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.76rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: var(--accent-red);
  background: rgba(239, 68, 68, 0.08);
  padding: 4px 12px;
  border-radius: var(--radius-full);
  margin-bottom: 10px;
}

.hero-form-title {
  font-size: 1.45rem;
  font-weight: 800;
  color: var(--dark-900);
  margin-bottom: 6px;
}

.hero-form-subtitle {
  font-size: 0.88rem;
  color: var(--gray-500);
  margin-bottom: 22px;
}

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

.form-label {
  display: block;
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--dark-700);
  margin-bottom: 6px;
}

.form-input-wrapper {
  position: relative;
  display: flex;
  align-items: center;
}

.form-input-wrapper i {
  position: absolute;
  left: 14px;
  color: var(--primary-500);
  font-size: 0.95rem;
  pointer-events: none;
}

.form-input, .form-select, .form-textarea {
  width: 100%;
  padding: 12px 14px 12px 42px;
  border: 1.5px solid var(--gray-200);
  border-radius: var(--radius-md);
  font-size: 0.92rem;
  color: var(--dark-800);
  background: var(--white);
  transition: var(--transition-fast);
}

.form-input:focus, .form-select:focus, .form-textarea:focus {
  border-color: var(--primary-500);
  box-shadow: 0 0 0 3.5px rgba(14, 165, 233, 0.15);
}

.form-submit-btn {
  width: 100%;
  padding: 14px;
  background: linear-gradient(135deg, var(--primary-600) 0%, var(--primary-500) 100%);
  color: var(--white);
  border-radius: var(--radius-md);
  font-weight: 700;
  font-size: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  box-shadow: 0 8px 20px rgba(2, 132, 199, 0.35);
  transition: var(--transition-normal);
  margin-top: 18px;
}

.form-submit-btn:hover {
  background: linear-gradient(135deg, var(--primary-700) 0%, var(--primary-600) 100%);
  box-shadow: 0 12px 26px rgba(2, 132, 199, 0.48);
  transform: translateY(-2px);
}

.form-privacy-note {
  font-size: 0.74rem;
  color: var(--gray-500);
  text-align: center;
  margin-top: 12px;
}

.form-privacy-note i {
  color: var(--accent-teal);
  margin-right: 4px;
}

/* Section Headings */
.section {
  padding: 90px 0;
  position: relative;
}

.section-bg-light {
  background-color: #f8fafc;
}

.section-bg-sky {
  background: linear-gradient(180deg, #f0f9ff 0%, #ffffff 100%);
}

.section-header {
  text-align: center;
  max-width: 780px;
  margin: 0 auto 56px;
}

.section-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: rgba(2, 132, 199, 0.1);
  color: var(--primary-700);
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.8px;
  text-transform: uppercase;
  margin-bottom: 12px;
}

.section-title {
  font-size: 2.35rem;
  font-weight: 900;
  color: var(--dark-900);
  letter-spacing: -0.5px;
  margin-bottom: 14px;
}

.section-desc {
  font-size: 1.05rem;
  color: var(--gray-500);
  line-height: 1.6;
}

/* Core Services */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.service-card {
  background: var(--white);
  border: 1px solid rgba(2, 132, 199, 0.12);
  border-radius: var(--radius-lg);
  padding: 34px 28px;
  transition: var(--transition-normal);
  position: relative;
  overflow: hidden;
  box-shadow: 0 4px 16px rgba(15, 23, 42, 0.04);
  display: flex;
  flex-direction: column;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--primary-500), var(--primary-400));
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.service-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 16px 36px rgba(2, 132, 199, 0.16);
  border-color: rgba(2, 132, 199, 0.3);
}

.service-card:hover::before {
  opacity: 1;
}

.service-card.featured {
  background: linear-gradient(180deg, #ffffff 0%, var(--primary-50) 100%);
  border-color: var(--primary-300);
  box-shadow: 0 10px 28px rgba(2, 132, 199, 0.12);
}

.service-icon-box {
  width: 66px;
  height: 66px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, var(--primary-50) 0%, var(--primary-100) 100%);
  color: var(--primary-600);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  margin-bottom: 22px;
  transition: var(--transition-normal);
}

.service-card:hover .service-icon-box {
  background: linear-gradient(135deg, var(--primary-500) 0%, var(--primary-600) 100%);
  color: var(--white);
  transform: scale(1.08) rotate(3deg);
  box-shadow: 0 8px 20px rgba(2, 132, 199, 0.3);
}

.service-title {
  font-size: 1.3rem;
  font-weight: 800;
  margin-bottom: 12px;
  color: var(--dark-900);
}

.service-desc {
  font-size: 0.92rem;
  color: var(--dark-600);
  line-height: 1.6;
  margin-bottom: 20px;
  flex-grow: 1;
}

.service-features {
  list-style: none;
  margin-bottom: 24px;
}

.service-features li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.88rem;
  color: var(--dark-700);
  margin-bottom: 8px;
}

.service-features li i {
  color: var(--accent-teal);
  font-size: 0.85rem;
}

.service-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--primary-600);
  transition: gap var(--transition-fast);
}

.service-card:hover .service-link {
  color: var(--primary-700);
  gap: 12px;
}

/* Real Project Showcase & Gallery */
.gallery-filter-wrap {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 40px;
}

.filter-btn {
  padding: 10px 22px;
  border-radius: var(--radius-full);
  font-size: 0.9rem;
  font-weight: 700;
  background: var(--white);
  color: var(--dark-700);
  border: 1.5px solid var(--gray-200);
  transition: var(--transition-fast);
}

.filter-btn:hover {
  border-color: var(--primary-400);
  color: var(--primary-600);
  background: var(--primary-50);
}

.filter-btn.active {
  background: linear-gradient(135deg, var(--primary-600) 0%, var(--primary-500) 100%);
  color: var(--white);
  border-color: transparent;
  box-shadow: 0 4px 14px rgba(2, 132, 199, 0.35);
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
  align-items: stretch;
}

.project-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid rgba(2, 132, 199, 0.12);
  box-shadow: 0 4px 18px rgba(15, 23, 42, 0.05);
  transition: var(--transition-normal);
  display: flex;
  flex-direction: column;
  height: 100%;
  cursor: pointer;
}

.project-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 18px 36px rgba(2, 132, 199, 0.18);
  border-color: var(--primary-300);
}

.project-thumb-box {
  position: relative;
  aspect-ratio: 4 / 5; /* Căn thẳng đứng chuẩn ảnh kiến trúc & công trình */
  overflow: hidden;
  background: #0f172a;
}

.project-thumb {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center center;
  transition: transform 0.5s ease;
}

.project-card:hover .project-thumb {
  transform: scale(1.08);
}

.project-badge-tag {
  position: absolute;
  top: 14px;
  left: 14px;
  background: rgba(15, 23, 42, 0.85);
  backdrop-filter: blur(6px);
  color: var(--white);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: var(--radius-full);
  letter-spacing: 0.4px;
  z-index: 2;
}

.project-overlay-btn {
  position: absolute;
  inset: 0;
  background: rgba(2, 132, 199, 0.4);
  backdrop-filter: blur(2px);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--transition-fast);
  z-index: 3;
}

.project-card:hover .project-overlay-btn {
  opacity: 1;
}

.overlay-icon {
  width: 50px;
  height: 50px;
  background: var(--white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary-600);
  font-size: 1.25rem;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
  transform: scale(0.8);
  transition: transform var(--transition-bounce);
}

.project-card:hover .overlay-icon {
  transform: scale(1);
}

.project-info {
  padding: 22px 20px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.project-client {
  font-size: 0.8rem;
  color: var(--primary-600);
  font-weight: 700;
  text-transform: uppercase;
  margin-bottom: 6px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.project-title {
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--dark-900);
  margin-bottom: 8px;
  line-height: 1.35;
}

.project-summary {
  font-size: 0.88rem;
  color: var(--gray-500);
  line-height: 1.5;
  margin-bottom: 16px;
  display: -webkit-box;
  line-clamp: 3;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  min-height: 4.5em;
  flex-grow: 1;
}

.project-meta-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 14px;
  border-top: 1px solid var(--gray-100);
  font-size: 0.82rem;
  color: var(--dark-600);
  font-weight: 600;
  margin-top: auto;
}

/* Project Lightbox Enhancements */
.project-modal-hero {
  position: relative;
  background: #0b1329;
  border-radius: 14px;
  overflow: hidden;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 380px;
  max-height: 520px;
}

.project-modal-hero img {
  width: 100%;
  max-height: 520px;
  object-fit: contain;
  display: block;
}

.modal-gallery-strip {
  display: flex;
  gap: 10px;
  margin-bottom: 20px;
  overflow-x: auto;
  padding-bottom: 8px;
  -webkit-overflow-scrolling: touch;
}

.modal-gallery-strip::-webkit-scrollbar {
  height: 6px;
}
.modal-gallery-strip::-webkit-scrollbar-thumb {
  background: var(--primary-300);
  border-radius: 3px;
}

.modal-gallery-img {
  width: 72px;
  height: 72px;
  flex-shrink: 0;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  border-radius: 8px;
  cursor: pointer;
  border: 2px solid transparent;
  transition: var(--transition-fast);
}

.modal-gallery-img:hover,
.modal-gallery-img.active {
  border-color: var(--primary-500);
  transform: scale(1.05);
}

.project-meta-item {
  display: flex;
  align-items: center;
  gap: 6px;
}

.project-meta-item i {
  color: var(--primary-500);
}

/* Hồ Sơ Năng Lực (Company Profile) Interactive Tabs */
.profile-tabs-nav {
  display: flex;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 36px;
}

.profile-tab-btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 13px 26px;
  background: var(--white);
  border: 1.5px solid var(--gray-200);
  border-radius: var(--radius-md);
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--dark-700);
  box-shadow: 0 2px 8px rgba(15, 23, 42, 0.03);
  transition: var(--transition-fast);
}

.profile-tab-btn i {
  font-size: 1.1rem;
  color: var(--primary-500);
}

.profile-tab-btn:hover {
  border-color: var(--primary-400);
  color: var(--primary-700);
  background: var(--primary-50);
}

.profile-tab-btn.active {
  background: linear-gradient(135deg, var(--primary-600) 0%, var(--primary-500) 100%);
  color: var(--white);
  border-color: transparent;
  box-shadow: 0 6px 20px rgba(2, 132, 199, 0.3);
}

.profile-tab-btn.active i {
  color: var(--white);
}

.profile-tab-content {
  display: none;
  animation: fadeInTab 0.4s ease;
}

.profile-tab-content.active {
  display: block;
}

@keyframes fadeInTab {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.profile-card-wrapper {
  background: var(--white);
  border-radius: var(--radius-xl);
  border: 1px solid rgba(2, 132, 199, 0.15);
  box-shadow: 0 12px 35px rgba(2, 132, 199, 0.08);
  padding: 40px;
}

/* Equipment Catalog Table */
.equipment-table-wrap {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border-radius: var(--radius-md);
  border: 1px solid var(--gray-200);
}

.equipment-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.92rem;
}

.equipment-table th {
  background: var(--primary-50);
  color: var(--primary-800);
  font-weight: 800;
  padding: 14px 18px;
  border-bottom: 2px solid var(--primary-200);
  font-family: 'Montserrat', sans-serif;
}

.equipment-table td {
  padding: 14px 18px;
  border-bottom: 1px solid var(--gray-200);
  color: var(--dark-700);
}

.equipment-table tr:hover td {
  background-color: #f8fbfe;
}

.tag-owned {
  display: inline-block;
  padding: 3px 10px;
  background: rgba(20, 184, 166, 0.12);
  color: #0f766e;
  border-radius: var(--radius-full);
  font-size: 0.78rem;
  font-weight: 700;
}

.tag-status-high {
  display: inline-block;
  padding: 3px 10px;
  background: rgba(14, 165, 233, 0.12);
  color: var(--primary-700);
  border-radius: var(--radius-full);
  font-size: 0.78rem;
  font-weight: 700;
}

/* Organization Structure Chart */
.org-chart-wrap {
  padding: 20px 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
}

.org-node {
  background: var(--white);
  border: 1.5px solid var(--primary-300);
  border-radius: var(--radius-md);
  padding: 14px 28px;
  text-align: center;
  box-shadow: 0 4px 14px rgba(2, 132, 199, 0.1);
  min-width: 200px;
}

.org-node.main {
  background: linear-gradient(135deg, var(--primary-600) 0%, var(--primary-700) 100%);
  color: var(--white);
  border: none;
  box-shadow: 0 8px 20px rgba(2, 132, 199, 0.35);
}

.org-node.sub {
  background: var(--primary-50);
  border-color: var(--primary-400);
}

.org-connector {
  width: 2px;
  height: 24px;
  background: var(--primary-300);
}

.org-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 16px;
  width: 100%;
}

/* Cost Estimator / Báo Giá Dự Toán */
.estimator-box {
  background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
  border: 1px solid var(--primary-200);
  border-radius: var(--radius-xl);
  padding: 40px;
  margin-top: 40px;
}

.estimator-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 36px;
  align-items: center;
}

.est-result-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 30px;
  box-shadow: 0 10px 30px rgba(2, 132, 199, 0.15);
  border: 1px solid rgba(2, 132, 199, 0.2);
  text-align: center;
}

.est-price-display {
  font-size: 2.3rem;
  font-weight: 900;
  font-family: 'Montserrat', sans-serif;
  color: var(--accent-red);
  margin: 14px 0 6px;
}

.est-note {
  font-size: 0.8rem;
  color: var(--gray-500);
  margin-bottom: 20px;
}

/* Why Choose Us */
.reasons-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.reason-card {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
  padding: 30px 24px;
  text-align: center;
  transition: var(--transition-normal);
  box-shadow: 0 4px 14px rgba(15, 23, 42, 0.03);
}

.reason-card:hover {
  transform: translateY(-6px);
  border-color: var(--primary-400);
  box-shadow: 0 14px 30px rgba(2, 132, 199, 0.12);
}

.reason-icon {
  width: 60px;
  height: 60px;
  margin: 0 auto 18px;
  border-radius: 50%;
  background: var(--primary-100);
  color: var(--primary-600);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  transition: var(--transition-normal);
}

.reason-card:hover .reason-icon {
  background: var(--primary-600);
  color: var(--white);
  transform: scale(1.1);
}

.reason-title {
  font-size: 1.15rem;
  font-weight: 800;
  margin-bottom: 10px;
  color: var(--dark-900);
}

.reason-desc {
  font-size: 0.88rem;
  color: var(--gray-500);
  line-height: 1.55;
}

/* Contact & Consultation Section */
.contact-section {
  background: linear-gradient(135deg, var(--dark-900) 0%, #075985 100%);
  color: var(--white);
  padding: 90px 0;
  position: relative;
  overflow: hidden;
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 50px;
  position: relative;
  z-index: 2;
}

.contact-info-col h2 {
  color: var(--white);
  font-size: 2.3rem;
  margin-bottom: 16px;
}

.contact-info-col p {
  color: var(--primary-200);
  font-size: 1.05rem;
  line-height: 1.6;
  margin-bottom: 34px;
}

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

.contact-item-card {
  display: flex;
  align-items: flex-start;
  gap: 18px;
  background: rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(10px);
  padding: 20px 22px;
  border-radius: var(--radius-md);
  border: 1px solid rgba(255, 255, 255, 0.12);
  transition: var(--transition-fast);
}

.contact-item-card:hover {
  background: rgba(255, 255, 255, 0.14);
  transform: translateX(6px);
}

.contact-icon-bubble {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--primary-500);
  color: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  flex-shrink: 0;
}

.contact-card-title {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.6px;
  color: var(--primary-300);
  margin-bottom: 4px;
}

.contact-card-val {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--white);
}

.contact-form-col {
  background: var(--white);
  border-radius: var(--radius-xl);
  padding: 38px 34px;
  color: var(--dark-800);
  box-shadow: 0 20px 45px rgba(0, 0, 0, 0.25);
}

/* Footer */
.footer {
  background: #0b1329;
  color: var(--gray-400);
  padding: 70px 0 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 36px;
  margin-bottom: 50px;
}

.footer-col-title {
  color: var(--white);
  font-size: 1.1rem;
  font-weight: 800;
  margin-bottom: 20px;
  position: relative;
}

.footer-col-title::after {
  content: '';
  position: absolute;
  bottom: -6px;
  left: 0;
  width: 32px;
  height: 2.5px;
  background: var(--primary-500);
  border-radius: 2px;
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: 11px;
}

.footer-links a {
  color: var(--gray-400);
  font-size: 0.9rem;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.footer-links a:hover {
  color: var(--primary-400);
  transform: translateX(4px);
}

.footer-bottom {
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 0.85rem;
}

/* Modals & Lightbox */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.75);
  backdrop-filter: blur(8px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
}

.modal-backdrop.active {
  opacity: 1;
  visibility: visible;
}

.modal-box {
  background: var(--white);
  border-radius: var(--radius-xl);
  max-width: 820px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  position: relative;
  box-shadow: 0 25px 50px rgba(0, 0, 0, 0.35);
  transform: scale(0.95);
  transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.modal-backdrop.active .modal-box {
  transform: scale(1);
}

.modal-close-btn {
  position: absolute;
  top: 18px;
  right: 18px;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(15, 23, 42, 0.1);
  color: var(--dark-800);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  z-index: 10;
  transition: var(--transition-fast);
}

.modal-close-btn:hover {
  background: var(--accent-red);
  color: var(--white);
}

/* Floating Action Widgets */
.floating-widgets {
  position: fixed;
  bottom: 28px;
  right: 28px;
  z-index: 999;
  display: flex;
  flex-direction: column;
  gap: 14px;
  align-items: flex-end;
}

.float-btn {
  width: 54px;
  height: 54px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-size: 1.35rem;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.22);
  transition: var(--transition-normal);
  position: relative;
}

.float-btn:hover {
  transform: scale(1.1) translateY(-3px);
}

.float-zalo {
  background: #0068ff;
}

.float-phone {
  background: var(--accent-red);
  animation: phoneVibe 2.4s infinite;
}

@keyframes phoneVibe {
  0% { transform: rotate(0deg); }
  5% { transform: rotate(15deg); }
  10% { transform: rotate(-15deg); }
  15% { transform: rotate(12deg); }
  20% { transform: rotate(-12deg); }
  25% { transform: rotate(0deg); }
  100% { transform: rotate(0deg); }
}

.float-quote {
  background: linear-gradient(135deg, var(--primary-500), var(--primary-600));
}

.float-scroll-top {
  width: 44px;
  height: 44px;
  background: var(--dark-800);
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
}

.float-scroll-top.visible {
  opacity: 1;
  visibility: visible;
}

/* Toast Notification */
.toast-container {
  position: fixed;
  bottom: 30px;
  left: 30px;
  z-index: 3000;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.toast {
  background: var(--dark-900);
  color: var(--white);
  padding: 16px 22px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  gap: 12px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
  border-left: 5px solid var(--accent-teal);
  animation: slideToast 0.4s ease;
}

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

/* Admin Leads Drawer */
.admin-drawer {
  position: fixed;
  top: 0;
  right: -480px;
  width: 100%;
  max-width: 460px;
  height: 100vh;
  background: var(--white);
  z-index: 2500;
  box-shadow: -10px 0 35px rgba(0, 0, 0, 0.25);
  transition: right 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  display: flex;
  flex-direction: column;
}

.admin-drawer.open {
  right: 0;
}

.admin-drawer-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.65);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  z-index: 2400;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
}

.admin-drawer-backdrop.active {
  opacity: 1;
  visibility: visible;
}

.modal-dialog {
  background: var(--white);
  border-radius: var(--radius-xl);
  max-width: 440px;
  width: 100%;
  position: relative;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
  transform: scale(0.95);
  transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
  overflow: hidden;
}

.modal-backdrop.active .modal-dialog {
  transform: scale(1);
}

.nav-admin-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(2, 132, 199, 0.08);
  border: 1px solid rgba(2, 132, 199, 0.25);
  color: var(--primary-700);
  font-size: 0.82rem;
  font-weight: 700;
  padding: 6px 14px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition-fast);
}

.nav-admin-btn:hover {
  background: var(--primary-600);
  color: var(--white);
  border-color: var(--primary-600);
}

.admin-drawer-header {
  padding: 20px 24px;
  background: var(--dark-900);
  color: var(--white);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.admin-drawer-body {
  padding: 20px;
  overflow-y: auto;
  flex-grow: 1;
}

.admin-discreet-btn {
  font-size: 0.82rem;
  color: var(--primary-300);
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.18);
  padding: 8px 14px;
  border-radius: 8px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  transition: all 0.25s ease;
  font-weight: 600;
}

.admin-discreet-btn:hover {
  color: var(--white);
  background: var(--primary-600);
  border-color: var(--primary-500);
  box-shadow: 0 4px 14px rgba(2, 132, 199, 0.4);
}

@keyframes shakeError {
  0%, 100% { transform: translateX(0); }
  20%, 60% { transform: translateX(-6px); }
  40%, 80% { transform: translateX(6px); }
}

.shake-input {
  animation: shakeError 0.4s ease;
  border-color: var(--accent-red) !important;
}


/* Responsive Media Queries */
@media (max-width: 1024px) {
  .hero-content-wrapper {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .hero-title {
    font-size: 2.6rem;
  }
  .services-grid, .projects-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .reasons-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .contact-grid {
    grid-template-columns: 1fr;
  }
  .estimator-grid {
    grid-template-columns: 1fr;
  }
}

/* Mobile Bottom Sticky Bar */
.mobile-bottom-bar {
  display: none;
}

/* Responsive Media Queries */
@media (max-width: 1024px) {
  .hero-content-wrapper {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .hero-title {
    font-size: 2.6rem;
  }
  .services-grid, .projects-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .reasons-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .contact-grid {
    grid-template-columns: 1fr;
  }
  .estimator-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  /* Prevent horizontal overflow on mobile */
  body {
    padding-bottom: 74px; /* Space for mobile bottom bar */
  }

  .topbar {
    display: none;
  }

  .header {
    padding: 0;
  }

  .header-container {
    padding: 10px 16px;
  }

  .brand-logo-img {
    height: 40px;
  }

  /* Slide-down / Full Drawer Mobile Menu */
  .nav-menu {
    position: fixed;
    top: 65px;
    left: -100%;
    width: 85%;
    max-width: 320px;
    height: calc(100vh - 65px);
    background: var(--white);
    flex-direction: column;
    padding: 24px 20px;
    gap: 16px;
    transition: left 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 10px 0 35px rgba(0, 0, 0, 0.15);
    z-index: 1050;
    overflow-y: auto;
  }

  .nav-menu.open {
    left: 0;
  }

  .nav-link {
    display: block;
    font-size: 1.05rem;
    padding: 10px 12px;
    border-radius: var(--radius-sm);
  }

  .nav-link:hover, .nav-link.active {
    background: var(--primary-50);
    color: var(--primary-700);
  }

  .nav-link::after {
    display: none;
  }

  .mobile-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: var(--radius-sm);
    background: var(--primary-50);
    color: var(--primary-700);
    font-size: 1.25rem;
  }

  .nav-actions .btn-hotline {
    padding: 6px 12px;
    font-size: 0.82rem;
  }

  .nav-actions .btn-hotline span:last-child {
    display: none; /* Hide full phone text on small headers, keep pulsing icon */
  }

  .nav-actions .btn-primary {
    display: none;
  }

  /* Hero Adjustments */
  .hero {
    padding: 30px 0 50px;
  }

  .hero-title {
    font-size: clamp(1.85rem, 6.5vw, 2.4rem);
    line-height: 1.2;
    margin: 12px 0 14px;
  }

  .hero-desc {
    font-size: 0.98rem;
    margin-bottom: 20px;
  }

  .hero-pills {
    gap: 8px;
    margin-bottom: 24px;
  }

  .hero-pill {
    font-size: 0.8rem;
    padding: 6px 10px;
  }

  .hero-cta-group {
    flex-direction: column;
    align-items: stretch;
    gap: 12px;
    margin-bottom: 30px;
  }

  .hero-cta-group .btn-primary,
  .hero-cta-group .btn-outline {
    width: 100%;
    padding: 14px;
  }

  .hero-stats-row {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
    padding-top: 18px;
  }

  .hero-stat-num {
    font-size: 1.6rem;
  }

  /* Hero Form Card */
  .hero-form-card {
    padding: 24px 18px;
    border-radius: var(--radius-lg);
  }

  .hero-form-title {
    font-size: 1.25rem;
  }

  /* Prevent Safari/Chrome iOS Zoom by keeping input font-size >= 16px */
  .form-input, .form-select, .form-textarea {
    font-size: 16px;
    padding-top: 12px;
    padding-bottom: 12px;
    min-height: 46px;
  }

  /* Section Spacing */
  .section {
    padding: 55px 0;
  }

  .section-header {
    margin-bottom: 36px;
  }

  .section-title {
    font-size: 1.8rem;
    line-height: 1.25;
  }

  .section-desc {
    font-size: 0.92rem;
  }

  /* Services & Projects Grid */
  .services-grid, .projects-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .service-card {
    padding: 24px 20px;
  }

  /* Horizontal Scrollable Filter Tabs for Mobile */
  .gallery-filter-wrap {
    overflow-x: auto;
    flex-wrap: nowrap;
    justify-content: flex-start;
    padding-bottom: 10px;
    margin-bottom: 24px;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
  }

  .gallery-filter-wrap::-webkit-scrollbar {
    display: none;
  }

  .filter-btn {
    white-space: nowrap;
    flex-shrink: 0;
    padding: 8px 16px;
    font-size: 0.84rem;
  }

  /* Profile Tabs on Mobile */
  .profile-tabs-nav {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
    margin-bottom: 24px;
  }

  .profile-tab-btn {
    padding: 10px 12px;
    font-size: 0.82rem;
    justify-content: center;
  }

  .profile-card-wrapper {
    padding: 20px 14px;
    border-radius: var(--radius-lg);
  }

  /* Profile Tab 1 (Legal) Stacking */
  #tabLegal > div {
    grid-template-columns: 1fr !important;
    gap: 24px !important;
  }

  #tabLegal h3 {
    font-size: 1.35rem !important;
  }

  /* Reasons Grid */
  .reasons-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  /* Estimator Box */
  .estimator-box {
    padding: 22px 16px;
    border-radius: var(--radius-lg);
  }

  .est-price-display {
    font-size: 1.7rem;
  }

  /* Contact Section */
  .contact-section {
    padding: 55px 0;
  }

  .contact-info-col h2 {
    font-size: 1.8rem;
  }

  .contact-form-col {
    padding: 26px 18px;
    border-radius: var(--radius-lg);
  }

  /* Modals on Mobile */
  .modal-backdrop {
    padding: 12px;
  }

  .modal-box {
    max-height: 94vh;
    border-radius: var(--radius-lg);
  }

  .modal-close-btn {
    top: 12px;
    right: 12px;
    width: 36px;
    height: 36px;
    font-size: 1.05rem;
  }

  /* License Modal: Stack 2 pages vertically on mobile */
  #licenseModal .modal-box > div > div[style*="grid-template-columns"] {
    grid-template-columns: 1fr !important;
  }

  /* Footer */
  .footer {
    padding: 45px 0 20px;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 28px;
    margin-bottom: 30px;
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
    gap: 8px;
  }

  /* Reposition floating widgets on mobile so they don't cover bottom bar */
  .floating-widgets {
    bottom: 84px;
    right: 16px;
    gap: 10px;
  }

  .float-btn {
    width: 46px;
    height: 46px;
    font-size: 1.15rem;
  }

  .float-zalo, .float-phone {
    display: none; /* Already in sticky bottom bar on mobile */
  }

  /* Mobile Bottom Navigation Bar (Sticky App Style) */
  .mobile-bottom-bar {
    display: flex;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: 64px;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-top: 1px solid rgba(2, 132, 199, 0.18);
    box-shadow: 0 -4px 20px rgba(15, 23, 42, 0.1);
    z-index: 1500;
    justify-content: space-around;
    align-items: center;
    padding: 4px 6px;
  }

  .bottom-bar-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--dark-600);
    font-size: 0.72rem;
    font-weight: 700;
    text-align: center;
    gap: 4px;
    flex: 1;
    height: 100%;
    transition: color var(--transition-fast);
  }

  .bottom-bar-item i {
    font-size: 1.25rem;
  }

  .bottom-bar-item:hover, .bottom-bar-item:active {
    color: var(--primary-600);
  }

  .bottom-bar-item.hotline-item {
    color: var(--accent-red);
  }

  .bottom-bar-item.hotline-item i {
    animation: phoneVibe 2.4s infinite;
  }

  .bottom-bar-item.zalo-item {
    color: #0068ff;
  }

  .bottom-bar-item.quote-item {
    color: var(--primary-600);
    position: relative;
  }

  .bottom-bar-item.quote-item i {
    background: linear-gradient(135deg, var(--primary-500), var(--primary-600));
    color: #fff;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.95rem;
    box-shadow: 0 3px 10px rgba(2, 132, 199, 0.35);
  }
}

/* Extra small mobile screens (< 380px) */
@media (max-width: 380px) {
  .brand-logo-img {
    height: 34px;
  }

  .profile-tabs-nav {
    grid-template-columns: 1fr;
  }

  .hero-stat-num {
    font-size: 1.4rem;
  }

  .section-title {
    font-size: 1.55rem;
  }
}

/* ==========================================================================
   Responsive Visibility For Admin Triggers (Eliminate Duplicate on Desktop)
   ========================================================================== */
.nav-admin-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  background: var(--primary-50);
  color: var(--primary-700);
  border: 1px solid var(--primary-200);
  border-radius: var(--radius-md);
  font-weight: 700;
  font-size: 0.88rem;
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.nav-admin-btn:hover {
  background: var(--primary-100);
  border-color: var(--primary-300);
  color: var(--primary-800);
  transform: translateY(-1px);
}

@media (min-width: 992px) {
  .mobile-only-admin-item {
    display: none !important;
  }
}

@media (max-width: 991px) {
  .mobile-only-admin-item {
    border-top: 1px dashed var(--gray-200);
    padding-top: 8px;
    margin-top: 6px;
  }
  .nav-admin-btn {
    display: none !important;
  }
}