/* ============================================
   波光綠洲 Oasis Poke & Salad - 全域樣式表
   設計語彙：清爽有機 × 高級食材感
   ============================================ */

/* 導入 Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:wght@600;700&family=Poppins:wght@400;500;600;700&display=swap');

/* ============================================
   CSS 變數定義 - 品牌色系
   ============================================ */
:root {
  /* 核心色系 */
  --color-cream: #FDFBF7;        /* 燕麥奶白 - 背景基調 */
  --color-green: #2B4C3B;        /* 酪梨深綠 - 主視覺 */
  --color-coral: #FA7256;        /* 鮭魚珊瑚橘 - CTA & 強調 */
  --color-light-gray: #E8E3D8;   /* 輔助灰 - 邊框、分隔線 */
  --color-dark-gray: #4A4A4A;    /* 深灰 - 次要文字 */
  
  /* 排版 */
  --font-display: 'Playfair Display', serif;
  --font-body: 'Poppins', sans-serif;
  
  /* 間距 */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-2xl: 4rem;
  
  /* 圓角 */
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 16px;
  
  /* 陰影 */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.1);
  
  /* 過渡 */
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ============================================
   全域重置 & 基礎樣式
   ============================================ */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  background-color: var(--color-cream);
  color: var(--color-green);
  line-height: 1.6;
  font-size: 16px;
}

/* ============================================
   排版系統
   ============================================ */
h1 {
  font-family: var(--font-display);
  font-size: 48px;
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-green);
  margin-bottom: var(--spacing-md);
}

h2 {
  font-family: var(--font-display);
  font-size: 36px;
  font-weight: 600;
  line-height: 1.3;
  color: var(--color-green);
  margin-bottom: var(--spacing-md);
}

h3 {
  font-family: var(--font-body);
  font-size: 24px;
  font-weight: 600;
  line-height: 1.4;
  color: var(--color-green);
  margin-bottom: var(--spacing-sm);
}

h4 {
  font-family: var(--font-body);
  font-size: 18px;
  font-weight: 600;
  line-height: 1.4;
  color: var(--color-green);
  margin-bottom: var(--spacing-xs);
}

p {
  font-size: 16px;
  font-weight: 400;
  line-height: 1.6;
  color: var(--color-dark-gray);
  margin-bottom: var(--spacing-md);
}

small {
  font-size: 14px;
  font-weight: 400;
  line-height: 1.5;
  color: var(--color-dark-gray);
}

/* ============================================
   Header 導航欄
   ============================================ */
.navbar {
  background-color: var(--color-cream);
  border-bottom: 1px solid var(--color-light-gray);
  padding: var(--spacing-md) 0;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow-sm);
}

.navbar-brand {
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 700;
  color: var(--color-green);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
}

.navbar-brand:hover {
  color: var(--color-coral);
  transition: var(--transition);
}

.navbar-nav .nav-link {
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 500;
  color: var(--color-green);
  text-decoration: none;
  padding: var(--spacing-xs) var(--spacing-md);
  transition: var(--transition);
  position: relative;
}

.navbar-nav .nav-link:hover,
.navbar-nav .nav-link.active {
  color: var(--color-coral);
}

.navbar-nav .nav-link.active::after {
  content: '';
  position: absolute;
  bottom: -8px;
  left: 50%;
  transform: translateX(-50%);
  width: 4px;
  height: 4px;
  background-color: var(--color-coral);
  border-radius: 50%;
}

/* ============================================
   按鈕樣式
   ============================================ */
.btn {
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 600;
  padding: 12px 24px;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
  display: inline-block;
  text-align: center;
}

.btn-primary {
  background-color: var(--color-coral);
  color: white;
  box-shadow: var(--shadow-md);
}

.btn-primary:hover {
  background-color: #E85A42;
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

.btn-secondary {
  background-color: var(--color-green);
  color: white;
  box-shadow: var(--shadow-md);
}

.btn-secondary:hover {
  background-color: #1f3a2d;
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

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

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

.btn-sm {
  padding: 8px 16px;
  font-size: 14px;
}

.btn-lg {
  padding: 16px 32px;
  font-size: 16px;
}

/* ============================================
   卡片元件
   ============================================ */
.card {
  background-color: white;
  border: none;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  overflow: hidden;
  transition: var(--transition);
}

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

.card-img-top {
  width: 100%;
  height: 240px;
  object-fit: cover;
}

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

.card-title {
  font-family: var(--font-body);
  font-size: 18px;
  font-weight: 600;
  color: var(--color-green);
  margin-bottom: var(--spacing-sm);
}

.card-text {
  font-size: 14px;
  color: var(--color-dark-gray);
  line-height: 1.6;
}

/* ============================================
   容器 & 間距
   ============================================ */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

.section {
  padding: var(--spacing-2xl) 0;
}

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

.section-title h2 {
  margin-bottom: var(--spacing-md);
}

.section-title p {
  font-size: 16px;
  color: var(--color-dark-gray);
  max-width: 600px;
  margin: 0 auto;
}

/* ============================================
   Hero Section
   ============================================ */
.hero {
  background: linear-gradient(135deg, rgba(43, 76, 59, 0.85) 0%, rgba(250, 114, 86, 0.75) 100%),
              url('https://d2xsxph8kpxj0f.cloudfront.net/310519663398562947/TKDk8tsNPfHVQLfokArmuk/hero-poke-bowl-27apVPBjYHfWLtzZTQGMXz.webp');
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
  color: white;
  padding: 120px var(--spacing-lg);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(circle at 20% 50%, rgba(43, 76, 59, 0.3) 0%, transparent 50%);
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 700px;
  margin: 0 auto;
}

.hero h1 {
  color: white;
  font-size: 56px;
  margin-bottom: var(--spacing-md);
  animation: fadeInUp 0.8s ease-out;
}

.hero p {
  color: rgba(255, 255, 255, 0.95);
  font-size: 18px;
  margin-bottom: var(--spacing-lg);
  animation: fadeInUp 0.8s ease-out 0.2s both;
}

.hero .btn {
  animation: fadeInUp 0.8s ease-out 0.4s both;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ============================================
   波浪分隔線 SVG
   ============================================ */
.wave-divider {
  width: 100%;
  height: 80px;
  display: block;
  margin: var(--spacing-xl) 0 0 0;
}

.wave-divider svg {
  width: 100%;
  height: 100%;
  display: block;
}

/* ============================================
   表單元件
   ============================================ */
.form-group {
  margin-bottom: var(--spacing-lg);
}

label {
  display: block;
  font-weight: 600;
  color: var(--color-green);
  margin-bottom: var(--spacing-xs);
  font-size: 14px;
}

input[type="text"],
input[type="email"],
input[type="tel"],
input[type="number"],
textarea,
select {
  width: 100%;
  padding: 12px var(--spacing-md);
  border: 2px solid var(--color-light-gray);
  border-radius: var(--radius-md);
  font-family: var(--font-body);
  font-size: 14px;
  color: var(--color-green);
  background-color: white;
  transition: var(--transition);
}

input[type="text"]:focus,
input[type="email"]:focus,
input[type="tel"]:focus,
input[type="number"]:focus,
textarea:focus,
select:focus {
  outline: none;
  border-color: var(--color-coral);
  box-shadow: 0 0 0 3px rgba(250, 114, 86, 0.1);
}

textarea {
  resize: vertical;
  min-height: 120px;
}

/* ============================================
   勾選框 & 單選框
   ============================================ */
.checkbox-group,
.radio-group {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.checkbox-item,
.radio-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  cursor: pointer;
}

input[type="checkbox"],
input[type="radio"] {
  width: 20px;
  height: 20px;
  cursor: pointer;
  accent-color: var(--color-coral);
}

.checkbox-item label,
.radio-item label {
  margin-bottom: 0;
  cursor: pointer;
  font-weight: 500;
}

/* ============================================
   進度條
   ============================================ */
.progress {
  height: 8px;
  background-color: var(--color-light-gray);
  border-radius: 4px;
  overflow: hidden;
  margin: var(--spacing-md) 0;
}

.progress-bar {
  height: 100%;
  background-color: var(--color-coral);
  border-radius: 4px;
  transition: width 0.3s ease;
}

.progress-bar.success {
  background-color: #4CAF50;
}

/* ============================================
   標籤 & 徽章
   ============================================ */
.badge {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 600;
  background-color: var(--color-light-gray);
  color: var(--color-green);
}

.badge-primary {
  background-color: var(--color-coral);
  color: white;
}

.badge-success {
  background-color: #4CAF50;
  color: white;
}

.badge-warning {
  background-color: #FF9800;
  color: white;
}

/* ============================================
   Footer
   ============================================ */
.footer {
  background-color: var(--color-green);
  color: white;
  padding: var(--spacing-2xl) 0 var(--spacing-lg);
  margin-top: var(--spacing-2xl);
}

.footer h4 {
  color: white;
  margin-bottom: var(--spacing-md);
}

.footer p {
  color: rgba(255, 255, 255, 0.8);
  font-size: 14px;
  margin-bottom: var(--spacing-sm);
}

.footer a {
  color: rgba(255, 255, 255, 0.8);
  text-decoration: none;
  transition: var(--transition);
}

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

.footer-divider {
  border-top: 1px solid rgba(255, 255, 255, 0.2);
  margin: var(--spacing-lg) 0;
  padding-top: var(--spacing-lg);
}

.footer-bottom {
  text-align: center;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.6);
}

/* ============================================
   響應式設計
   ============================================ */
@media (max-width: 768px) {
  h1 {
    font-size: 36px;
  }

  h2 {
    font-size: 28px;
  }

  h3 {
    font-size: 20px;
  }

  .hero {
    padding: 80px var(--spacing-md);
  }

  .hero h1 {
    font-size: 40px;
  }

  .hero p {
    font-size: 16px;
  }

  .container {
    padding: 0 var(--spacing-md);
  }

  .section {
    padding: var(--spacing-xl) 0;
  }

  .navbar-nav {
    flex-direction: column;
    gap: var(--spacing-md);
  }
}

@media (max-width: 576px) {
  h1 {
    font-size: 28px;
  }

  h2 {
    font-size: 22px;
  }

  .hero h1 {
    font-size: 32px;
  }

  .hero p {
    font-size: 14px;
  }

  .btn {
    padding: 10px 20px;
    font-size: 14px;
  }

  .card-img-top {
    height: 180px;
  }
}

/* ============================================
   動畫 & 過渡
   ============================================ */
.fade-in {
  animation: fadeIn 0.6s ease-out;
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

.slide-in-left {
  animation: slideInLeft 0.6s ease-out;
}

@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.slide-in-right {
  animation: slideInRight 0.6s ease-out;
}

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.scale-in {
  animation: scaleIn 0.6s ease-out;
}

@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.95);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

/* ============================================
   工具類
   ============================================ */
.text-center {
  text-align: center;
}

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

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

.mt-1 { margin-top: var(--spacing-xs); }
.mt-2 { margin-top: var(--spacing-sm); }
.mt-3 { margin-top: var(--spacing-md); }
.mt-4 { margin-top: var(--spacing-lg); }
.mt-5 { margin-top: var(--spacing-xl); }

.mb-1 { margin-bottom: var(--spacing-xs); }
.mb-2 { margin-bottom: var(--spacing-sm); }
.mb-3 { margin-bottom: var(--spacing-md); }
.mb-4 { margin-bottom: var(--spacing-lg); }
.mb-5 { margin-bottom: var(--spacing-xl); }

.p-1 { padding: var(--spacing-xs); }
.p-2 { padding: var(--spacing-sm); }
.p-3 { padding: var(--spacing-md); }
.p-4 { padding: var(--spacing-lg); }
.p-5 { padding: var(--spacing-xl); }

.hidden {
  display: none;
}

.visible {
  display: block;
}

.d-flex {
  display: flex;
}

.flex-column {
  flex-direction: column;
}

.justify-content-between {
  justify-content: space-between;
}

.align-items-center {
  align-items: center;
}

.gap-2 {
  gap: var(--spacing-sm);
}

.gap-3 {
  gap: var(--spacing-md);
}

.gap-4 {
  gap: var(--spacing-lg);
}