/*
Theme Name: Yến Sào Sơn Tùng
Theme URI: https://yensaosontung.com
Author: Yến Sào Sơn Tùng - Đồng Nai
Author URI: https://www.facebook.com/share/1BpRgfMnVC/?mibextid=wwXIfr
Description: Giao diện chuyên nghiệp cho thương hiệu Yến Sào Sơn Tùng (Trảng Bom - Đồng Nai), tối ưu giới thiệu sản phẩm và đặt hàng trực tuyến tiện lợi.
Version: 1.0.0
License: GNU General Public License v2 or later
Text Domain: yensaosontung
*/

:root {
  --primary: #8b181b;
  --primary-dark: #630c0f;
  --primary-light: #ab2428;
  --gold: #d4af37;
  --gold-light: #f7e7b4;
  --gold-dark: #aa820a;
  --gold-gradient: linear-gradient(135deg, #d4af37 0%, #f9e596 50%, #b8860b 100%);
  --red-gradient: linear-gradient(135deg, #8b181b 0%, #b31d22 100%);
  --dark: #1f1f1f;
  --dark-soft: #2d2d2d;
  --gray-bg: #fdfbf7;
  --gray-card: #ffffff;
  --gray-border: #ede6dd;
  --text-main: #2c2c2c;
  --text-muted: #6b6b6b;
  --accent-green: #2e7d32;
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.12);
  --shadow-gold: 0 8px 24px rgba(212, 175, 55, 0.25);
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
  --font-serif: 'Playfair Display', 'Merriweather', 'Georgia', serif;
  --font-sans: 'Montserrat', 'Be Vietnam Pro', system-ui, -apple-system, sans-serif;
}

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

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

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

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

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

ul {
  list-style: none;
}

button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
}

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

/* Typography Helpers */
.title-gold {
  background: var(--gold-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  font-weight: 700;
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: rgba(212, 175, 55, 0.15);
  color: var(--gold-dark);
  font-weight: 600;
  font-size: 0.85rem;
  letter-spacing: 1px;
  text-transform: uppercase;
  border-radius: 50px;
  margin-bottom: 12px;
  border: 1px solid rgba(212, 175, 55, 0.3);
}

.section-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 50px;
}

.section-title {
  font-family: var(--font-serif);
  font-size: 2.25rem;
  color: var(--primary);
  margin-bottom: 12px;
  font-weight: 700;
  position: relative;
}

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

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 13px 28px;
  font-weight: 600;
  border-radius: 50px;
  border: none;
  cursor: pointer;
  transition: var(--transition);
  text-align: center;
  font-size: 0.95rem;
}

.btn-primary {
  background: var(--red-gradient);
  color: #ffffff;
  box-shadow: 0 4px 15px rgba(139, 24, 27, 0.35);
}

.btn-primary:hover {
  background: linear-gradient(135deg, #a01c20 0%, #cc2429 100%);
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(139, 24, 27, 0.45);
  color: #fff;
}

.btn-gold {
  background: var(--gold-gradient);
  color: #4a3404;
  box-shadow: var(--shadow-gold);
}

.btn-gold:hover {
  background: linear-gradient(135deg, #f0ca52 0%, #ffd86b 100%);
  transform: translateY(-2px);
  box-shadow: 0 10px 28px rgba(212, 175, 55, 0.4);
  color: #2b1f02;
}

.btn-outline-gold {
  background: transparent;
  color: #ffffff;
  border: 2px solid var(--gold);
}

.btn-outline-gold:hover {
  background: var(--gold);
  color: #4a3404;
  transform: translateY(-2px);
}

.btn-sm {
  padding: 8px 18px;
  font-size: 0.85rem;
}