/* ==========================================================================
   FPT TELECOM LÂM THAO - PHÚ THỌ (MINIMALIST & FAST-CONVERTING)
   Hotline/Zalo: 0382898603
   Theme inspired by fpt.vn
   ========================================================================== */

:root {
  --fpt-orange: #F37021;
  --fpt-orange-hover: #D95C10;
  --fpt-blue: #005AAB;
  --fpt-blue-hover: #003F78;
  --zalo-color: #0088FF;
  --zalo-hover: #0066CC;
  
  --dark-navy: #0B192C;
  --light-gray: #F4F6F9;
  --border-color: #E2E8F0;
  --text-main: #1E293B;
  --text-muted: #64748B;
  
  --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.06);
  --shadow-hover: 0 10px 30px rgba(243, 112, 33, 0.2);
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-full: 9999px;
}

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

html {
  scroll-behavior: smooth;
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  color: var(--text-main);
  background-color: #FFFFFF;
  line-height: 1.5;
}

body {
  padding-bottom: 70px;
}

a {
  text-decoration: none;
  color: inherit;
}

.container {
  width: 100%;
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 1rem;
}

/* Header */
.header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: #FFFFFF;
  border-bottom: 2px solid #F1F5F9;
  box-shadow: 0 2px 10px rgba(0,0,0,0.04);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}

.logo-box {
  display: flex;
  align-items: center;
  gap: 0.8rem;
}

.official-logo-img {
  height: 42px;
  width: auto;
  object-fit: contain;
}

.brand-info h1 {
  font-size: 1.05rem;
  font-weight: 900;
  color: var(--fpt-blue);
  line-height: 1.1;
  letter-spacing: -0.3px;
}

.brand-info p {
  font-size: 0.75rem;
  color: var(--fpt-orange);
  font-weight: 800;
  text-transform: uppercase;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-weight: 800;
  border-radius: var(--radius-full);
  transition: all 0.25s ease;
  cursor: pointer;
  border: none;
  text-align: center;
}

.btn-phone {
  background: var(--fpt-orange);
  color: white;
  padding: 0.6rem 1.2rem;
  font-size: 0.95rem;
  box-shadow: 0 4px 15px rgba(243, 112, 33, 0.35);
  animation: pulse-glow 2s infinite;
}

.btn-phone:hover {
  background: var(--fpt-orange-hover);
  color: white;
}

.btn-zalo {
  background: var(--zalo-color);
  color: white;
  padding: 0.6rem 1.2rem;
  font-size: 0.95rem;
}

.btn-zalo:hover {
  background: var(--zalo-hover);
  color: white;
}

@keyframes pulse-glow {
  0% { box-shadow: 0 0 0 0 rgba(243, 112, 33, 0.6); }
  70% { box-shadow: 0 0 0 10px rgba(243, 112, 33, 0); }
  100% { box-shadow: 0 0 0 0 rgba(243, 112, 33, 0); }
}

/* Hero Section */
.hero {
  background: linear-gradient(135deg, #0F172A 0%, #1E293B 100%);
  color: white;
  padding: 2.5rem 0 3rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--fpt-orange), var(--fpt-blue));
}

.hero-tag {
  background: rgba(243, 112, 33, 0.2);
  border: 1px solid var(--fpt-orange);
  color: #FF9D54;
  font-size: 0.85rem;
  font-weight: 800;
  padding: 0.3rem 1rem;
  border-radius: var(--radius-full);
  display: inline-block;
  margin-bottom: 1rem;
}

.hero-title {
  font-size: 2.2rem;
  font-weight: 900;
  line-height: 1.2;
  margin-bottom: 0.8rem;
}

.hero-title span {
  color: var(--fpt-orange);
}

.hero-subtitle {
  font-size: 1.05rem;
  color: #CBD5E1;
  max-width: 700px;
  margin: 0 auto 1.8rem;
}

.hero-features {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  flex-wrap: wrap;
  margin-bottom: 2rem;
}

.hero-feat-item {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-weight: 700;
  font-size: 0.95rem;
  color: #F8FAFC;
}

.hero-feat-item i {
  color: #10B981;
}

.hero-ctas {
  display: flex;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.btn-lg {
  padding: 0.85rem 1.8rem;
  font-size: 1.05rem;
  border-radius: var(--radius-full);
}

/* Local Alert Banner */
.local-alert {
  background: #FFF7F2;
  border-bottom: 1px solid #FFE4D6;
  color: var(--dark-navy);
  padding: 0.75rem 0;
  text-align: center;
  font-weight: 700;
  font-size: 0.95rem;
}

.local-alert span {
  color: var(--fpt-orange);
}

/* Section Header */
.section {
  padding: 3.5rem 0;
}

.section-bg {
  background-color: var(--light-gray);
}

.sec-title {
  text-align: center;
  font-size: 1.9rem;
  font-weight: 900;
  color: var(--dark-navy);
  margin-bottom: 0.5rem;
}

.sec-subtitle {
  text-align: center;
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-bottom: 2.5rem;
}

/* Grid & Cards */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
}

.card {
  background: #FFFFFF;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
  padding: 1.8rem 1.5rem;
  box-shadow: var(--shadow-card);
  transition: all 0.3s ease;
  position: relative;
  display: flex;
  flex-direction: column;
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-hover);
  border-color: var(--fpt-orange);
}

.card.highlight {
  border: 2px solid var(--fpt-orange);
}

.card-badge {
  position: absolute;
  top: -12px;
  right: 1.5rem;
  background: var(--fpt-orange);
  color: white;
  font-size: 0.75rem;
  font-weight: 800;
  padding: 0.25rem 0.8rem;
  border-radius: var(--radius-full);
  text-transform: uppercase;
}

.card-name {
  font-size: 1.5rem;
  font-weight: 900;
  color: var(--dark-navy);
  margin-bottom: 0.25rem;
}

.card-speed {
  color: var(--fpt-blue);
  font-weight: 800;
  font-size: 1rem;
  margin-bottom: 1rem;
}

.card-price {
  font-size: 2.1rem;
  font-weight: 900;
  color: var(--fpt-orange);
  line-height: 1;
  margin-bottom: 1.25rem;
}

.card-price span {
  font-size: 0.9rem;
  color: var(--text-muted);
  font-weight: 600;
}

.card-list {
  list-style: none;
  margin-bottom: 1.5rem;
  flex-grow: 1;
}

.card-list li {
  font-size: 0.9rem;
  margin-bottom: 0.6rem;
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
}

.card-list li i {
  color: #10B981;
  margin-top: 3px;
}

.card-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.6rem;
}

.card-actions .btn {
  font-size: 0.85rem;
  padding: 0.65rem 0.5rem;
}

/* Premier League Special Section */
.epl-section {
  background: linear-gradient(135deg, #005AAB 0%, #002D5B 100%);
  color: white;
  padding: 3.5rem 0;
  border-radius: var(--radius-lg);
  margin: 2rem 0;
}

.epl-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 2.5rem;
  align-items: center;
}

.epl-badge {
  background: #FCD34D;
  color: #0F172A;
  font-weight: 900;
  font-size: 0.85rem;
  padding: 0.3rem 0.9rem;
  border-radius: var(--radius-full);
  display: inline-block;
  margin-bottom: 1rem;
  text-transform: uppercase;
}

.epl-title {
  font-size: 2rem;
  font-weight: 900;
  line-height: 1.25;
  margin-bottom: 1rem;
}

.epl-title span {
  color: #FCD34D;
}

.epl-desc {
  font-size: 1rem;
  color: #E2E8F0;
  margin-bottom: 1.8rem;
  line-height: 1.6;
}

.epl-box-img {
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: 0 15px 30px rgba(0,0,0,0.3);
  border: 2px solid rgba(255,255,255,0.2);
}

/* Coverage List */
.coverage-box {
  background: #FFFFFF;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 2rem;
  margin-top: 1.5rem;
}

.coverage-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.cov-tag {
  background: var(--light-gray);
  border: 1px solid #CBD5E1;
  padding: 0.4rem 0.9rem;
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--dark-navy);
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.cov-tag i {
  color: #10B981;
}

/* Fixed Bottom Action Bar */
.fixed-bottom-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  background: rgba(15, 23, 42, 0.95);
  backdrop-filter: blur(10px);
  border-top: 2px solid var(--fpt-orange);
  padding: 0.65rem 1rem;
  z-index: 2000;
  box-shadow: 0 -5px 25px rgba(0,0,0,0.25);
}

.bottom-bar-inner {
  max-width: 600px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
}

.bottom-bar-inner .btn {
  width: 100%;
  padding: 0.75rem 0.5rem;
  font-size: 0.95rem;
  border-radius: var(--radius-md);
}

/* Footer */
.footer {
  background: var(--dark-navy);
  color: #94A3B8;
  padding: 2.5rem 0;
  font-size: 0.88rem;
  text-align: center;
}

.footer p {
  margin-bottom: 0.5rem;
}

.footer a {
  color: var(--fpt-orange);
  font-weight: 700;
}

/* Responsive */
@media (max-width: 768px) {
  .hero-title {
    font-size: 1.7rem;
  }
  .epl-grid {
    grid-template-columns: 1fr;
  }
  .header-actions .btn-zalo {
    display: none;
  }
  .official-logo-img {
    height: 34px;
  }
}