/*
Theme Name: KC Tâm Thức - Ẩm Thực Việt
Theme URI: https://kctamthuc.com
Author: KC Team
Author URI: https://kctamthuc.com
Description: Theme WordPress chuyên về giới thiệu món ăn và ẩm thực Việt Nam với giao diện đẹp mắt, màu xanh chủ đạo, nhiều icon và responsive hoàn toàn.
Version: 1.0.0
License: GNU General Public License v2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
Text Domain: kctamthuc
Tags: food, restaurant, cuisine, responsive, modern, blue, icons
*/

/* ===================================
   CSS Variables - Color Scheme
   =================================== */
:root {
  /* Primary Colors - Xanh chủ đạo */
  --color-primary: #00A86B;        /* Xanh lá ngọc bích */
  --color-primary-dark: #008556;   /* Xanh đậm hơn */
  --color-primary-light: #33C088;  /* Xanh nhạt hơn */
  
  /* Secondary Colors */
  --color-secondary: #2E8B57;      /* Xanh rừng */
  --color-accent: #20B2AA;         /* Xanh ngọc */
  --color-blue: #4682B4;           /* Xanh dương */
  
  /* Neutral Colors */
  --color-white: #FFFFFF;
  --color-light-gray: #F8F9FA;
  --color-gray: #E9ECEF;
  --color-dark-gray: #6C757D;
  --color-black: #212529;
  
  /* Semantic Colors */
  --color-success: #28A745;
  --color-warning: #FFC107;
  --color-danger: #DC3545;
  --color-info: #17A2B8;
  
  /* Typography */
  --font-primary: 'Montserrat', sans-serif;
  --font-secondary: 'Open Sans', sans-serif;
  
  /* Font Sizes */
  --font-size-xs: 0.75rem;    /* 12px */
  --font-size-sm: 0.875rem;   /* 14px */
  --font-size-base: 1rem;     /* 16px */
  --font-size-lg: 1.125rem;   /* 18px */
  --font-size-xl: 1.25rem;    /* 20px */
  --font-size-2xl: 1.5rem;    /* 24px */
  --font-size-3xl: 1.875rem;  /* 30px */
  --font-size-4xl: 2.25rem;   /* 36px */
  --font-size-5xl: 3rem;      /* 48px */
  
  /* Spacing */
  --spacing-xs: 0.25rem;   /* 4px */
  --spacing-sm: 0.5rem;    /* 8px */
  --spacing-md: 1rem;      /* 16px */
  --spacing-lg: 1.5rem;    /* 24px */
  --spacing-xl: 2rem;      /* 32px */
  --spacing-2xl: 3rem;     /* 48px */
  --spacing-3xl: 4rem;     /* 64px */
  
  /* Border Radius */
  --radius-sm: 0.25rem;    /* 4px */
  --radius-md: 0.5rem;     /* 8px */
  --radius-lg: 1rem;       /* 16px */
  --radius-xl: 1.5rem;     /* 24px */
  --radius-full: 9999px;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
  
  /* Transitions */
  --transition-fast: 150ms ease-in-out;
  --transition-base: 300ms ease-in-out;
  --transition-slow: 500ms ease-in-out;
}

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

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

body {
  font-family: var(--font-secondary);
  font-size: var(--font-size-base);
  line-height: 1.6;
  color: var(--color-black);
  background-color: var(--color-white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-primary);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: var(--spacing-md);
  color: var(--color-black);
}

h1 { font-size: var(--font-size-4xl); }
h2 { font-size: var(--font-size-3xl); }
h3 { font-size: var(--font-size-2xl); }
h4 { font-size: var(--font-size-xl); }
h5 { font-size: var(--font-size-lg); }
h6 { font-size: var(--font-size-base); }

p {
  margin-bottom: var(--spacing-md);
}

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

a:hover {
  color: var(--color-primary-dark);
}

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

ul, ol {
  list-style: none;
}

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

/* ===================================
   Utility Classes
   =================================== */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.container-fluid {
  width: 100%;
  padding: 0 var(--spacing-md);
}

.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.text-primary { color: var(--color-primary); }
.text-secondary { color: var(--color-secondary); }
.text-white { color: var(--color-white); }

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

.d-none { display: none; }
.d-block { display: block; }
.d-flex { display: flex; }
.d-grid { display: grid; }

.flex-column { flex-direction: column; }
.flex-wrap { flex-wrap: wrap; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.align-center { align-items: center; }

.gap-sm { gap: var(--spacing-sm); }
.gap-md { gap: var(--spacing-md); }
.gap-lg { gap: var(--spacing-lg); }

/* ===================================
   Button Styles
   =================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-lg);
  font-size: var(--font-size-base);
  font-weight: 600;
  border-radius: var(--radius-md);
  transition: all var(--transition-base);
  cursor: pointer;
  border: 2px solid transparent;
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  color: var(--color-white);
  box-shadow: var(--shadow-md);
}

.btn-primary:hover {
  background: linear-gradient(135deg, var(--color-primary-dark), var(--color-secondary));
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn-outline {
  background: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}

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

/* ===================================
   Card Styles
   =================================== */
.card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  overflow: hidden;
  transition: all var(--transition-base);
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-xl);
}

.card-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
}

.card-body {
  padding: var(--spacing-lg);
}

.card-title {
  font-size: var(--font-size-xl);
  margin-bottom: var(--spacing-sm);
  color: var(--color-black);
}

.card-text {
  color: var(--color-dark-gray);
  margin-bottom: var(--spacing-md);
}

/* ===================================
   Icon Styles
   =================================== */
.icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1em;
  height: 1em;
}

.icon-sm { font-size: 1rem; }
.icon-md { font-size: 1.5rem; }
.icon-lg { font-size: 2rem; }
.icon-xl { font-size: 3rem; }

.icon-circle {
  width: 3rem;
  height: 3rem;
  border-radius: var(--radius-full);
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  color: var(--color-white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
}

/* ===================================
   Grid Layout
   =================================== */
.grid {
  display: grid;
  gap: var(--spacing-lg);
}

.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

/* ===================================
   Section Styles
   =================================== */
.section {
  padding: var(--spacing-3xl) 0;
}

.section-title {
  text-align: center;
  margin-bottom: var(--spacing-2xl);
  position: relative;
}

.section-title::after {
  content: '';
  display: block;
  width: 80px;
  height: 4px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  margin: var(--spacing-md) auto 0;
  border-radius: var(--radius-full);
}

/* ===================================
   Rating Stars
   =================================== */
.rating {
  display: flex;
  gap: var(--spacing-xs);
  color: var(--color-warning);
}

.rating i {
  font-size: var(--font-size-lg);
}

/* ===================================
   WordPress Core Styles
   =================================== */
.alignleft {
  float: left;
  margin-right: var(--spacing-md);
  margin-bottom: var(--spacing-md);
}

.alignright {
  float: right;
  margin-left: var(--spacing-md);
  margin-bottom: var(--spacing-md);
}

.aligncenter {
  display: block;
  margin-left: auto;
  margin-right: auto;
}

.wp-caption {
  max-width: 100%;
}

.wp-caption-text {
  font-size: var(--font-size-sm);
  color: var(--color-dark-gray);
  text-align: center;
  margin-top: var(--spacing-sm);
}

.screen-reader-text {
  clip: rect(1px, 1px, 1px, 1px);
  position: absolute !important;
  height: 1px;
  width: 1px;
  overflow: hidden;
}