/* =============================================
   RESET & BASE
   ============================================= */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; color: #1e293b; background: #fff; line-height: 1.6; }
img { max-width: 100%; height: auto; }
a { color: #ee0033; text-decoration: none; }
a:hover { text-decoration: underline; }
:root {
  --red: #ee0033;
  --red-dark: #cc002b;
  --red-light: #fff1f2;
  --blue: #0284c7;
  --blue-light: #e0f2fe;
  --green: #16a34a;
  --green-light: #dcfce7;
  --orange: #f59e0b;
  --orange-light: #ffedd5;
  --purple: #9333ea;
  --purple-light: #f3e8ff;
  --teal: #14b8a6;
  --teal-light: #ccfbf1;
  --slate: #334155;
  --slate-light: #e2e8f0;
  --gray: #64748b;
  --gray-light: #f1f5f9;
  --border: #e5e7eb;
  --shadow: 0 4px 6px rgba(0,0,0,0.05);
  --shadow-md: 0 10px 20px rgba(0,0,0,0.1);
  --radius: 12px;
}
/* --- CSS CHO BẢNG GÓI CƯỚC SIÊU NHẸ --- */
.table-responsive { overflow-x: auto; margin-bottom: 20px; }
.viettel-table { width: 100%; border-collapse: collapse; min-width: 600px; background: #fff; border: 1px solid #eee; }
/* Định dạng chung cho hàng và cột */
.viettel-table th, .viettel-table td { padding: 10px; border: 1px solid #ddd; vertical-align: middle; }
.viettel-table th { background-color: #ee0033 !important; color: white; text-align: center; padding: 12px 10px; }
/* Các class tiện ích (Helper classes) */
.text-center { text-align: center; }
.font-bold { font-weight: bold; }
.text-red { color: #ee0033; }
.text-gray { color: #666; font-size: 13px; }
.text-muted { color: #555; font-size: 13px; }
/* Nút đăng ký và tên gói trong bảng */
.pkg-link { font-weight: bold; color: #ee0033; text-decoration: none; font-size: 15px; }
.btn-table-reg { background: #ee0033; color: #fff; padding: 6px 15px; border-radius: 4px; display: inline-block; font-size: 13px; font-weight: bold; text-decoration: none; }
.btn-table-reg:hover { background: #cc002b; color: #fff; }
.table-seo-wrapper h3
{
font-size: 16px; color: #333; margin-bottom: 15px; text-transform: capitalize; border-left: 4px solid #ee0033; padding-left: 10px;
}
.table-seo-wrapper h3::after
{
	width:0;
	height:0;
		
}
/* =============================================
   TYPOGRAPHY
   ============================================= */

/* =============================================
   HIGHLIGHT BOX
   ============================================= */
.vt-highlight-txt {
  background: #f8fafc;
  border-left: 4px solid var(--red);
  padding: 16px 20px;
  border-radius: 0 8px 8px 0;
  margin-bottom: 20px;
  font-size: 15px;
  line-height: 1.7;
  color: #334155;
}
/* =============================================
   INFO / TIP / WARNING BOXES
   ============================================= */
.info-box {
  background: var(--blue-light);
  border-left: 4px solid var(--blue);
  padding: 14px 18px;
  border-radius: 0 8px 8px 0;
  margin: 16px 0;
  font-size: 14px;
}
.tip-box {
  background: #f0fdf4;
  border-left: 4px solid var(--green);
  padding: 14px 18px;
  border-radius: 0 8px 8px 0;
  margin: 16px 0;
  font-size: 14px;
}
.warning-box {
  background: var(--red-light);
  border-left: 4px solid var(--red);
  padding: 14px 18px;
  border-radius: 0 8px 8px 0;
  margin: 16px 0;
  font-size: 14px;
}
/* =============================================
   GROUP SECTION HEADER
   ============================================= */
.group-section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 3px solid var(--red);
}
.group-section-title {
  font-size: 22px;
  font-weight: 800;
  color: #1e293b;

  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0;
}
.group-section-desc { color: #475569; font-size: 14px; line-height: 1.6; margin-bottom: 16px; }
.btn-view-all {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--red);
  color: #fff;
  padding: 8px 18px;
  border-radius: 50px;
  font-size: 13px;
  font-weight: 700;
  text-decoration: none;
  transition: all 0.3s;
  white-space: nowrap;
}
.btn-view-all:hover { background: var(--red-dark); transform: scale(1.03); color: #fff; text-decoration: none; }
.btn-view-all-blue { background: var(--blue); }
.btn-view-all-blue:hover { background: #0369a1; }
.btn-view-all-orange { background: var(--orange); }
.btn-view-all-orange:hover { background: #d97706; }
/* =============================================
   PACKAGE GRVTX & CARDS
   ============================================= */
.package-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
  align-items: flex-start;
}
.pkg-card {
  background: #fff;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  overflow: hidden;
  position: relative;
  transition: transform 0.3s, box-shadow 0.3s;
}
.pkg-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-md); }
.best-seller { border: 2px solid var(--red); }
/* Ribbon */
.ribbon { position: absolute; right: -5px; top: -5px; z-index: 10; overflow: hidden; width: 75px; height: 75px; }
.ribbon span {
  font-size: 10px; font-weight: 700; color: #fff; text-transform: uppercase; text-align: center;
  line-height: 20px; transform: rotate(45deg); width: 100px; display: block;
  position: absolute; top: 19px; right: -21px; box-shadow: 0 3px 10px -5px rgba(0,0,0,1);
}
.ribbon-red span { background: var(--red); }
.ribbon-blue span { background: var(--blue); }
.ribbon-green span { background: var(--green); }
.ribbon-orange span { background: var(--orange); }
.ribbon-purple span { background: var(--purple); }
.ribbon-teal span { background: var(--teal); }
.ribbon-pink span { background: #db2777; }
.ribbon-yellow span { background: #d97706; }
/* Card Header */
.pkg-header { padding: 18px 16px; text-align: center; background: #fee2e2; }
.pkg-header.header-blue { background: var(--blue-light); }
.pkg-header.header-green { background: var(--green-light); }
.pkg-header.header-orange { background: var(--orange-light); }
.pkg-header.header-purple { background: var(--purple-light); }
.pkg-header.header-teal { background: var(--teal-light); }
.pkg-header.header-pink { background: #fce7f3; }
.pkg-header.header-yellow { background: #fef3c7; }
.pkg-header.header-slate { background: var(--slate-light); }
.pkg-name { margin: 0; font-size: 20px; font-weight: 800; color: #1e293b; text-transform: uppercase; }
.pkg-name::after { content: ""; display: block; width: 44px; height: 3px; background: var(--red); margin: 8px auto 0; border-radius: 2px; position: static !important;}
.pkg-price { font-size: 24px; font-weight: 700; color: var(--red); margin-top: 6px; }
.pkg-cycle { font-size: 13px; font-weight: 400; color: #666; }
/* Card Body */
.pkg-body { padding: 18px 16px; text-align: center; }
.main-data { margin-bottom: 14px; }
.data-num { font-size: 32px; font-weight: 800; color: #1e293b; line-height: 1; }
.data-unit { font-size: 16px; font-weight: 600; color: #555; }
.data-note { font-size: 13px; color: #666; margin-top: 4px; }
ul.pkg-features { list-style: none !important; margin: 0 !important; padding: 0 !important; text-align: left; }
ul.pkg-features li {
  list-style: none !important; margin-bottom: 9px !important; padding: 0 !important;
  display: flex !important; align-items: flex-start !important; gap: 10px !important;
  font-size: 14px; color: #444;
}
ul.pkg-features li::before, ul.pkg-features li::after { content: none !important; display: none !important; }
.icon-wrap { flex-shrink: 0 !important; width: 20px !important; text-align: center; padding-top: 2px; }
.text-wrap { flex: 1; text-align: left; font-size: 14px; color: #444; line-height: 1.4; }
.icon-check { color: #22c55e; }
/* Card Footer */
.pkg-footer { padding: 0 16px 18px; text-align: center; }
.btn-cta {
  display: flex; justify-content: center; align-items: center; gap: 8px; width: 100%;
  padding: 12px; color: #fff; font-weight: 700; text-transform: uppercase;
  text-decoration: none; border-radius: 50px; transition: all 0.3s; font-size: 14px;
}
.btn-cta:hover { transform: scale(1.03); text-decoration: none; color: #fff; }
.btn-red { background: var(--red); box-shadow: 0 4px 15px rgba(238,0,51,0.4); }
.btn-red:hover { background: var(--red-dark); }
.btn-blue { background: var(--blue); box-shadow: 0 4px 15px rgba(2,132,199,0.4); }
.btn-blue:hover { background: #0369a1; }
.btn-green { background: var(--green); box-shadow: 0 4px 15px rgba(22,163,74,0.4); }
.btn-green:hover { background: #15803d; }
.btn-orange { background: var(--orange); box-shadow: 0 4px 15px rgba(245,158,11,0.4); }
.btn-orange:hover { background: #d97706; }
.btn-purple { background: var(--purple); box-shadow: 0 4px 15px rgba(147,51,234,0.4); }
.btn-purple:hover { background: #7e22ce; }
.btn-teal { background: var(--teal); box-shadow: 0 4px 15px rgba(20,184,166,0.4); }
.btn-teal:hover { background: #0f766e; }
.btn-pink { background: #db2777; box-shadow: 0 4px 15px rgba(219,39,119,0.4); }
.btn-pink:hover { background: #9d174d; }
.btn-yellow { background: #d97706; box-shadow: 0 4px 15px rgba(217,119,6,0.4); }
.btn-yellow:hover { background: #b45309; }
@keyframes pulse-btn {
  0% { box-shadow: 0 0 0 0 rgba(238,0,51,0.7); }
  70% { box-shadow: 0 0 0 10px rgba(238,0,51,0); }
  100% { box-shadow: 0 0 0 0 rgba(238,0,51,0); }
}
.btn-pulse { animation: pulse-btn 2s infinite; }
.sms-syntax { font-size: 13px; color: #666; margin-top: 8px; }
/* =============================================
   QUICK TABLE
   ============================================= */
.quick-table-wrapper {
  overflow-x: auto;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  margin: 20px 0;
  box-shadow: var(--shadow);
}
.quick-table { width: 100%; border-collapse: collapse; font-size: 14px; min-width: 520px; }
.quick-table thead th {
  background: var(--slate) !important;
  color: #fff;
  padding: 11px 14px;
  text-align: left;
  font-weight: 700;
}
.quick-table tbody tr:nth-child(even) { background: #f8fafc; }
.quick-table tbody tr:hover { background: #f0fdf4; }
.quick-table td { padding: 10px 14px; border-bottom: 1px solid var(--border); font-size: 13px; }
.quick-table td:nth-child(1) { font-weight: 700; color: var(--red); }
.quick-table td:nth-child(2) { font-weight: 700; }
.btn-sms-sm {
  display: inline-block;
  background: var(--red);
  color: #fff;
  padding: 4px 12px;
  border-radius: 4px;
  font-size: 12px;
  font-weight: 700;
  text-decoration: none;
}
.btn-sms-sm:hover { background: var(--red-dark); color: #fff; }
/* =============================================
   TEASER BLOCK (Combo & MXH)
   ============================================= */
.teaser-block {
  background: #f8fafc;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 22px;
  margin-bottom: 20px;
  display: flex;
  align-items: flex-start;
  gap: 16px;
}
.teaser-icon {
  width: 52px; height: 52px;
  border-radius: 50%;
  display: flex; justify-content: center; align-items: center;
  font-size: 22px; flex-shrink: 0;
}
.teaser-content h3 { margin: 0 0 8px; font-size: 17px; font-weight: 800; color: #1e293b; border: none; padding: 0; }
.teaser-content p { margin: 0 0 12px; font-size: 14px; color: #475569; line-height: 1.6; }
.teaser-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 12px; }
.teaser-tag {
  background: #fff;
  border: 1px solid var(--border);
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 700;
  color: #334155;
}
/* =============================================
   FAQ
   ============================================= */
.faq-section details {
  background: #fff; border: 1px solid var(--border); border-radius: 8px;
  margin-bottom: 12px; overflow: hidden; box-shadow: 0 2px 4px rgba(0,0,0,0.02);
}
.faq-section summary {
  padding: 15px 20px; font-weight: 700; font-size: 15px; color: var(--slate);
  cursor: pointer; list-style: none; position: relative; outline: none;
}
.faq-section summary::-webkit-details-marker { display: none; }
.faq-section summary::after {
  content: "+"; position: absolute; right: 18px; top: 14px;
  color: #94a3b8; font-size: 20px; font-weight: 400; transition: transform 0.3s;
}
.faq-section details[open] summary { background: #f8fafc; color: var(--red); border-bottom: 1px solid var(--border); }
.faq-section details[open] summary::after { content: "−"; color: var(--red); }
.faq-section details p { padding: 14px 20px; margin: 0; color: #475569; line-height: 1.6; font-size: 14px; }
/* =============================================
   CTA GRADIENT
   ============================================= */
.cta-gradient {
  background: linear-gradient(135deg, var(--red) 0%, #b91c1c 100%);
  color: #fff; text-align: center; padding: 22px; border-radius: var(--radius);
  font-weight: 700; font-size: 17px; margin-top: 20px;
  box-shadow: 0 5px 15px rgba(238,0,51,0.3);
}
/* =============================================
   REGISTER CARD
   ============================================= */
.vdtsms-card {
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius);
  box-shadow: var(--shadow); overflow: hidden; max-width: 560px; margin: 20px auto;
}
.vdtsms-card-header { background: var(--slate); color: #fff; padding: 12px 16px; font-weight: 700; font-size: 15px; text-transform: uppercase; text-align: center; }
.vdtsms-card-body { padding: 22px 20px; text-align: center; }
.vdtsms-code-text { font-size: 20px; color: var(--red); font-weight: 800; letter-spacing: 1px; display: block; margin-bottom: 4px; }
.vdtsms-btn-sms {
  display: inline-block; background: var(--red); color: #fff; font-weight: 700;
  padding: 12px 28px; border-radius: 50px; text-decoration: none; text-transform: uppercase;
  box-shadow: 0 4px 10px rgba(238,0,51,0.3); transition: all 0.3s;
}
.vdtsms-btn-sms:hover { background: var(--red-dark); color: #fff; text-decoration: none; }
/* =============================================
   RATING
   ============================================= */
.vdt-rating-container {
  margin: 20px 0; padding: 14px 18px; background: #fffcf0;
  border: 1px solid #fde68a; border-radius: var(--radius);
  display: inline-flex; align-items: center; gap: 14px;
}
.vdt-stars { color: #fbbf24; font-size: 18px; display: flex; gap: 2px; }
.vdt-rating-info { color: #4b5563; font-size: 14px; }
/* =============================================
   MOBILE BOTTOM NAV
   ============================================= */
.mobile-bottom-nav {
  position: fixed; bottom: 0; left: 0; width: 100%;
  background: rgba(255,255,255,0.97); backdrop-filter: blur(10px);
  box-shadow: 0 -4px 20px rgba(0,0,0,0.08); display: flex;
  padding: 8px 5px; padding-bottom: calc(8px + env(safe-area-inset-bottom));
  z-index: 9999; border-top: 1px solid #f1f5f9;
}
.mbn-item {
  flex: 1; display: flex; flex-direction: column; align-items: center;
  justify-content: center; text-decoration: none; gap: 4px; transition: all 0.2s;
  position: relative; color: #64748b;
}
.mbn-item:hover { text-decoration: none; }
.mbn-icon { font-size: 18px; height: 22px; }
.mbn-title { font-weight: 800; font-size: 10px; text-transform: uppercase; }
.mbn-price { font-size: 9px; font-weight: 500; margin-top: 1px; white-space: nowrap; }
.active-item { color: var(--red); }
@media (min-width: 769px) { .mobile-bottom-nav { display: none; } }
/* =============================================
   RESPONSIVE
   ============================================= */
@media (max-width: 768px) {
  .package-grid { grid-template-columns: 1fr; }
  h1.main-title { font-size: 22px; }
  .data-num { font-size: 28px; }
  .pkg-price { font-size: 20px; }
  .teaser-block { flex-direction: column; gap: 10px; }
  .group-section-header { flex-direction: column; align-items: flex-start; }
}
@media (max-width: 480px) {
  .quick-table td, .quick-table th { padding: 8px 10px; font-size: 12px; }
}
.style1 {text-align: center; font-weight: bold; }


.vt-live-counter { margin: 18px 0; background: #fff; border: 1px solid #16a34a; border-radius: 50px; padding: 10px 18px; display: flex; align-items: center; justify-content: center; gap: 10px; font-size: 0.95em; color: #14532d; box-shadow: 0 2px 8px rgba(22,163,74,0.08); }
.vt-live-dot { display: inline-block; width: 10px; height: 10px; background: #16a34a; border-radius: 50%; animation: vtPulseDot 1.5s infinite; flex-shrink: 0; }
@keyframes vtPulseDot { 0%, 100% { opacity: 1; transform: scale(1); } 50% { opacity: 0.4; transform: scale(1.4); } }

@media (max-width: 768px) {
  .vt-live-counter { font-size: 0.85em; padding: 8px 14px; }
}