/* ==========================================================================
   ANH ĐÀO CARRICK (FCCA) - LUXURY CORPORATE STYLING (ACCA REGULATED)
   ========================================================================== */

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

:root {
  --color-primary-dark: #071527;
  --color-primary-navy: #0B1E36;
  --color-secondary-navy: #132D4E;
  --color-card-bg: #102642;
  --color-card-border: rgba(212, 175, 55, 0.18);
  
  --color-gold: #D4AF37;
  --color-gold-light: #F3E5AB;
  --color-gold-hover: #C29D26;
  --color-emerald: #00A86B;
  --color-emerald-light: #25D366;
  --color-blue-zalo: #0068FF;
  
  --color-text-main: #F8FAFC;
  --color-text-muted: #94A3B8;
  --color-text-subtle: #64748B;
  
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-heading: 'Outfit', var(--font-sans);
  --font-serif: 'Playfair Display', Georgia, serif;
  
  --shadow-sm: 0 4px 12px rgba(0, 0, 0, 0.25);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.35);
  --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.45);
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-full: 9999px;
  
  --transition-fast: 0.2s ease;
  --transition-smooth: 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

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

body {
  font-family: var(--font-sans);
  background-color: var(--color-primary-dark);
  color: var(--color-text-main);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

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

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

.container {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 24px;
}

.section-padding {
  padding: 96px 0;
}

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

.text-emerald {
  color: var(--color-emerald);
}

/* ==========================================================================
   NAVIGATION BAR
   ========================================================================== */
.navbar {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(7, 21, 39, 0.94);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(212, 175, 55, 0.15);
  transition: var(--transition-fast);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1280px;
  margin: 0 auto;
  padding: 14px 24px;
}

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

.brand-mark {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, #00A86B 0%, #0B1E36 100%);
  border: 1.5px solid var(--color-gold);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1.3rem;
  color: #FFFFFF;
  box-shadow: 0 0 15px rgba(0, 168, 107, 0.4);
}

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

.brand-name {
  font-family: var(--font-heading);
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: 0.5px;
  color: #FFFFFF;
  line-height: 1.1;
}

.brand-name span {
  color: var(--color-gold);
}

.brand-sub {
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--color-gold-light);
  letter-spacing: 1px;
  text-transform: uppercase;
}

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

.nav-links a {
  font-size: 0.92rem;
  font-weight: 500;
  color: #E2E8F0;
  position: relative;
  padding: 4px 0;
}

.nav-links a:hover {
  color: var(--color-gold);
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0%;
  height: 2px;
  background: var(--color-gold);
  transition: width var(--transition-fast);
}

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

.nav-right {
  display: flex;
  align-items: center;
  gap: 14px;
}

.lang-btn {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(212, 175, 55, 0.4);
  color: #FFFFFF;
  padding: 8px 14px;
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: var(--transition-fast);
}

.lang-btn:hover {
  background: rgba(212, 175, 55, 0.2);
  border-color: var(--color-gold);
  transform: translateY(-1px);
}

.mobile-toggle {
  display: none;
  font-size: 1.6rem;
  cursor: pointer;
  color: var(--color-gold);
}

/* ==========================================================================
   BUTTONS & BADGES
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.95rem;
  border-radius: var(--radius-md);
  cursor: pointer;
  border: none;
  transition: var(--transition-smooth);
  text-align: center;
}

.btn-sm {
  padding: 8px 18px;
  font-size: 0.88rem;
}

.btn-gold {
  background: linear-gradient(135deg, #D4AF37 0%, #C29D26 100%);
  color: #071527;
  font-weight: 700;
  box-shadow: 0 4px 14px rgba(212, 175, 55, 0.3);
}

.btn-gold:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(212, 175, 55, 0.45);
  filter: brightness(1.08);
}

.btn-emerald {
  background: #00A86B;
  color: #FFFFFF;
  box-shadow: 0 4px 14px rgba(0, 168, 107, 0.3);
}

.btn-emerald:hover {
  background: #00965F;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0, 168, 107, 0.45);
}

.btn-outline-gold {
  background: transparent;
  border: 1.5px solid var(--color-gold);
  color: var(--color-gold-light);
}

.btn-outline-gold:hover {
  background: rgba(212, 175, 55, 0.15);
  color: #FFFFFF;
  transform: translateY(-2px);
}

.btn-wa {
  background: #25D366;
  color: #FFFFFF;
}

.btn-wa:hover {
  background: #20BA5A;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(37, 211, 102, 0.35);
}

.btn-zalo {
  background: #0068FF;
  color: #FFFFFF;
}

.btn-zalo:hover {
  background: #0056D6;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0, 104, 255, 0.35);
}

.section-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  background: rgba(212, 175, 55, 0.12);
  border: 1px solid rgba(212, 175, 55, 0.3);
  color: var(--color-gold-light);
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.2px;
  border-radius: var(--radius-full);
  margin-bottom: 16px;
}

.acca-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: linear-gradient(135deg, rgba(0, 168, 107, 0.2) 0%, rgba(11, 30, 54, 0.6) 100%);
  border: 1px solid var(--color-emerald);
  color: #A7F3D0;
  padding: 6px 16px;
  border-radius: var(--radius-full);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.5px;
}

/* ==========================================================================
   HERO SECTION
   ========================================================================== */
.hero {
  position: relative;
  min-height: 88vh;
  display: flex;
  align-items: center;
  padding: 80px 0 60px;
  background: radial-gradient(circle at 85% 20%, rgba(0, 168, 107, 0.15) 0%, transparent 50%),
              radial-gradient(circle at 10% 80%, rgba(212, 175, 55, 0.12) 0%, transparent 45%),
              var(--color-primary-dark);
  border-bottom: 1px solid rgba(212, 175, 55, 0.15);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 50px;
  align-items: center;
}

.hero-content h1 {
  font-family: var(--font-serif);
  font-size: 2.85rem;
  line-height: 1.2;
  color: #FFFFFF;
  margin: 18px 0;
  font-weight: 700;
}

.hero-content p {
  font-size: 1.15rem;
  color: #CBD5E1;
  margin-bottom: 30px;
  max-width: 620px;
}

.hero-ctas {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 40px;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.stat-box {
  background: rgba(16, 38, 66, 0.6);
  border: 1px solid rgba(212, 175, 55, 0.15);
  border-radius: var(--radius-md);
  padding: 14px 18px;
}

.stat-box h4 {
  font-family: var(--font-heading);
  color: var(--color-gold);
  font-size: 1.05rem;
  font-weight: 700;
}

.stat-box p {
  font-size: 0.82rem;
  color: var(--color-text-muted);
  margin-bottom: 0;
}

.hero-card {
  background: rgba(16, 38, 66, 0.75);
  backdrop-filter: blur(16px);
  border: 1.5px solid var(--color-gold);
  border-radius: var(--radius-lg);
  padding: 28px;
  box-shadow: var(--shadow-lg);
  position: relative;
  overflow: hidden;
}

.hero-card::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 120px;
  height: 120px;
  background: radial-gradient(circle, rgba(212, 175, 55, 0.25) 0%, transparent 70%);
}

.hero-card-header {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 18px;
}

.hero-card-icon {
  font-size: 2.2rem;
}

.hero-card h3 {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  color: #FFFFFF;
}

.hero-card p {
  font-size: 0.92rem;
  color: var(--color-text-muted);
  margin-bottom: 18px;
}

.hero-card-list {
  list-style: none;
  margin-bottom: 22px;
}

.hero-card-list li {
  font-size: 0.88rem;
  color: #E2E8F0;
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 10px;
}

.hero-card-list li span {
  color: var(--color-emerald);
  font-weight: bold;
}

/* ==========================================================================
   ABOUT PRINCIPAL SECTION (ACCA & ANH DAO CARRICK)
   ========================================================================== */
.about-grid {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 50px;
  align-items: center;
}

.about-img-wrapper {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 2px solid var(--color-gold);
  box-shadow: var(--shadow-lg);
}

.about-img-wrapper img {
  width: 100%;
  height: auto;
  object-fit: cover;
}

.about-badge-overlay {
  position: absolute;
  bottom: 16px;
  left: 16px;
  right: 16px;
  background: rgba(7, 21, 39, 0.88);
  backdrop-filter: blur(10px);
  border: 1px solid var(--color-gold);
  border-radius: var(--radius-md);
  padding: 12px 16px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.about-badge-overlay .fcca-icon {
  font-size: 1.6rem;
  color: var(--color-gold);
}

.about-content h2 {
  font-family: var(--font-serif);
  font-size: 2.5rem;
  color: #FFFFFF;
  margin-bottom: 8px;
}

.about-content h4 {
  font-family: var(--font-heading);
  color: var(--color-gold);
  font-size: 1.15rem;
  margin-bottom: 20px;
  font-weight: 600;
}

.about-content p {
  color: #CBD5E1;
  font-size: 1rem;
  margin-bottom: 16px;
}

.qual-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin: 24px 0 30px;
}

.qual-item {
  background: rgba(16, 38, 66, 0.7);
  border: 1px solid rgba(212, 175, 55, 0.2);
  border-radius: var(--radius-md);
  padding: 14px 16px;
  display: flex;
  align-items: flex-start;
  gap: 10px;
}

.qual-item .check-icon {
  color: var(--color-gold);
  font-weight: bold;
  font-size: 1.1rem;
}

.qual-item p {
  font-size: 0.88rem;
  color: #E2E8F0;
  margin-bottom: 0;
  font-weight: 500;
}

/* ==========================================================================
   SERVICES GRID (10 COMPREHENSIVE SERVICES)
   ========================================================================== */
.section-header {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 56px;
}

.section-header h2 {
  font-family: var(--font-serif);
  font-size: 2.4rem;
  color: #FFFFFF;
  margin-bottom: 12px;
}

.section-header p {
  color: var(--color-text-muted);
  font-size: 1.05rem;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
  gap: 24px;
}

.service-card {
  background: var(--color-card-bg);
  border: 1px solid var(--color-card-border);
  border-radius: var(--radius-md);
  padding: 30px 26px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: var(--transition-smooth);
  position: relative;
  overflow: hidden;
}

.service-card:hover {
  transform: translateY(-6px);
  border-color: var(--color-gold);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.4), 0 0 15px rgba(212, 175, 55, 0.15);
}

.service-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 18px;
}

.service-icon-box {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  background: rgba(212, 175, 55, 0.12);
  border: 1px solid rgba(212, 175, 55, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
}

.service-number {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 800;
  color: rgba(212, 175, 55, 0.35);
}

.service-card h3 {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  color: #FFFFFF;
  margin-bottom: 12px;
  line-height: 1.35;
}

.service-card p {
  color: var(--color-text-muted);
  font-size: 0.92rem;
  line-height: 1.6;
  margin-bottom: 22px;
}

.service-card-action {
  margin-top: auto;
}

.service-card-action .btn-inquire {
  background: transparent;
  border: 1px solid rgba(212, 175, 55, 0.4);
  color: var(--color-gold-light);
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: var(--transition-fast);
  width: 100%;
  justify-content: center;
}

.service-card-action .btn-inquire:hover {
  background: var(--color-gold);
  color: #071527;
  border-color: var(--color-gold);
}

/* ==========================================================================
   SECTORS SECTION
   ========================================================================== */
.sectors-section {
  background: var(--color-primary-navy);
  border-top: 1px solid rgba(212, 175, 55, 0.1);
  border-bottom: 1px solid rgba(212, 175, 55, 0.1);
}

.sectors-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.sector-card {
  background: rgba(7, 21, 39, 0.6);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-md);
  padding: 26px;
  transition: var(--transition-fast);
}

.sector-card:hover {
  border-color: var(--color-emerald);
  transform: translateY(-4px);
  background: rgba(7, 21, 39, 0.85);
}

.sector-icon {
  font-size: 2rem;
  margin-bottom: 14px;
}

.sector-card h3 {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  color: #FFFFFF;
  margin-bottom: 10px;
}

.sector-card p {
  color: var(--color-text-muted);
  font-size: 0.88rem;
  line-height: 1.55;
}

/* ==========================================================================
   HMRC TAX DEADLINES SECTION
   ========================================================================== */
.deadlines-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.deadline-card {
  background: var(--color-card-bg);
  border: 1px solid rgba(212, 175, 55, 0.2);
  border-top: 4px solid var(--color-gold);
  border-radius: var(--radius-md);
  padding: 24px 20px;
  text-align: center;
  transition: var(--transition-fast);
}

.deadline-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.deadline-date {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--color-gold);
  margin-bottom: 6px;
}

.deadline-title {
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 700;
  color: #FFFFFF;
  margin-bottom: 12px;
}

.deadline-desc {
  font-size: 0.82rem;
  color: var(--color-text-muted);
  line-height: 1.5;
}

/* ==========================================================================
   OFFICE & CONTACT SECTION
   ========================================================================== */
.contact-section {
  background: radial-gradient(circle at 10% 50%, rgba(212, 175, 55, 0.08) 0%, transparent 40%),
              var(--color-primary-dark);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 40px;
}

.office-card {
  background: var(--color-card-bg);
  border: 1.5px solid var(--color-gold);
  border-radius: var(--radius-lg);
  padding: 36px;
  box-shadow: var(--shadow-lg);
}

.office-header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 24px;
  padding-bottom: 18px;
  border-bottom: 1px solid rgba(212, 175, 55, 0.2);
}

.office-icon {
  font-size: 2.2rem;
  color: var(--color-gold);
}

.office-header h3 {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  color: #FFFFFF;
}

.contact-item {
  margin-bottom: 18px;
  display: flex;
  flex-direction: column;
}

.contact-label {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--color-gold-light);
  text-transform: uppercase;
  letter-spacing: 0.8px;
  margin-bottom: 4px;
}

.contact-value {
  font-size: 1.05rem;
  color: #FFFFFF;
  font-weight: 500;
}

.contact-value a {
  color: #FFFFFF;
}

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

.contact-channels-box {
  background: rgba(7, 21, 39, 0.7);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
  padding: 36px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.contact-channels-box h3 {
  font-family: var(--font-heading);
  font-size: 1.35rem;
  color: #FFFFFF;
  margin-bottom: 14px;
}

.contact-channels-box p {
  color: var(--color-text-muted);
  font-size: 0.95rem;
  margin-bottom: 26px;
}

.direct-buttons-stack {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

/* ==========================================================================
   MODAL WINDOW
   ========================================================================== */
.modal-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(0, 0, 0, 0.82);
  backdrop-filter: blur(8px);
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
  padding: 20px;
}

.modal-backdrop.active {
  opacity: 1;
  pointer-events: auto;
}

.modal-box {
  background: var(--color-primary-navy);
  border: 1.5px solid var(--color-gold);
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 600px;
  max-height: 90vh;
  overflow-y: auto;
  padding: 36px;
  position: relative;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.7);
  transform: translateY(20px);
  transition: transform 0.3s ease;
}

.modal-backdrop.active .modal-box {
  transform: translateY(0);
}

.modal-close {
  position: absolute;
  top: 18px;
  right: 20px;
  background: rgba(255, 255, 255, 0.1);
  border: none;
  color: #FFFFFF;
  font-size: 1.4rem;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition-fast);
}

.modal-close:hover {
  background: rgba(255, 255, 255, 0.25);
  color: var(--color-gold);
}

.modal-box h3 {
  font-family: var(--font-serif);
  font-size: 1.65rem;
  color: #FFFFFF;
  margin-bottom: 6px;
}

.modal-box .modal-sub {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  margin-bottom: 22px;
}

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

.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: #E2E8F0;
  margin-bottom: 6px;
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: 12px 14px;
  background: rgba(7, 21, 39, 0.8);
  border: 1px solid rgba(212, 175, 55, 0.3);
  border-radius: var(--radius-sm);
  color: #FFFFFF;
  font-family: var(--font-sans);
  font-size: 0.92rem;
  transition: var(--transition-fast);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-gold);
  box-shadow: 0 0 0 3px rgba(212, 175, 55, 0.2);
}

.form-textarea {
  resize: vertical;
  min-height: 90px;
}

.modal-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-top: 24px;
}

.modal-disclaimer {
  font-size: 0.78rem;
  color: var(--color-text-subtle);
  margin-top: 16px;
  text-align: center;
}

/* ==========================================================================
   FOOTER
   ========================================================================== */
.footer {
  background: #040D18;
  border-top: 1px solid rgba(212, 175, 55, 0.2);
  padding: 60px 0 30px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}

.footer-brand h4 {
  font-family: var(--font-heading);
  font-size: 1.3rem;
  color: #FFFFFF;
  margin-bottom: 12px;
}

.footer-brand p {
  color: var(--color-text-muted);
  font-size: 0.88rem;
  line-height: 1.6;
}

.footer-links h5 {
  font-family: var(--font-heading);
  font-size: 1rem;
  color: var(--color-gold-light);
  margin-bottom: 16px;
  text-transform: uppercase;
  letter-spacing: 0.8px;
}

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

.footer-links li {
  margin-bottom: 10px;
}

.footer-links a {
  color: var(--color-text-muted);
  font-size: 0.88rem;
}

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

.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: 0.82rem;
  color: var(--color-text-subtle);
}

/* ==========================================================================
   FLOATING ACTION BUTTONS (MOBILE)
   ========================================================================== */
.floating-contact-bar {
  position: fixed;
  bottom: 20px;
  right: 20px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  z-index: 900;
}

.fab-btn {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: #FFFFFF;
  box-shadow: 0 4px 18px rgba(0, 0, 0, 0.4);
  transition: var(--transition-smooth);
}

.fab-btn:hover {
  transform: scale(1.1);
}

.fab-wa {
  background: #25D366;
}

.fab-zalo {
  background: #0068FF;
  font-weight: 800;
  font-size: 1.1rem;
}

/* ==========================================================================
   RESPONSIVE DESIGN (TABLETS & MOBILE)
   ========================================================================== */
@media (max-width: 1024px) {
  .hero-grid,
  .about-grid,
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

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

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

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

@media (max-width: 768px) {
  .nav-links {
    position: fixed;
    top: 72px;
    left: 0;
    width: 100%;
    background: var(--color-primary-navy);
    flex-direction: column;
    padding: 30px;
    gap: 20px;
    border-bottom: 1px solid var(--color-gold);
    display: none;
  }

  .nav-links.open {
    display: flex;
  }

  .mobile-toggle {
    display: block;
  }

  .hero-content h1 {
    font-size: 2.1rem;
  }

  .hero-stats {
    grid-template-columns: 1fr;
  }

  .qual-grid,
  .sectors-grid,
  .deadlines-grid,
  .footer-grid,
  .modal-actions {
    grid-template-columns: 1fr;
  }

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