/* -------------------------------------------------------------
 * DESIGN SYSTEM & UTILITIES (PHISO & Cost Nine Co., Ltd.)
 * ------------------------------------------------------------- */

/* นำเข้าฟอนต์ Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800&family=Sarabun:ital,wght@0,300;0,400;0,500;0,600;0,700;0,800;1,400&display=swap');

/* กำหนดตัวแปรสำหรับโทนสีและระบบดีไซน์ (Light Mode) */
:root {
    --font-primary: 'Outfit', 'Sarabun', sans-serif;
    
    /* โทนสี HSL พรีเมียม (วิศวกรรม/เทคโนโลยี) */
    --primary-hue: 215;
    --secondary-hue: 175;
    --accent-hue: 35;
    
    --bg-primary: #f8fafc;
    --bg-secondary: #ffffff;
    --bg-tertiary: #f1f5f9;
    
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #94a3b8;
    
    --color-primary: hsl(var(--primary-hue), 90%, 20%); /* Deep Navy */
    --color-primary-light: hsl(var(--primary-hue), 80%, 40%);
    --color-teal: hsl(var(--secondary-hue), 80%, 40%); /* Teal */
    --color-teal-hover: hsl(var(--secondary-hue), 90%, 30%);
    --color-amber: hsl(var(--accent-hue), 95%, 50%); /* Amber/Gold */
    
    --border-color: #e2e8f0;
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.05);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.05), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.08), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    
    --glass-bg: rgba(255, 255, 255, 0.75);
    --glass-border: rgba(255, 255, 255, 0.5);
    --glass-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.04);
    
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-full: 9999px;
    
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ปรับปรุงค่าในโหมดมืด (Dark Mode) */
html.dark {
    --bg-primary: #0b0f19;
    --bg-secondary: #111827;
    --bg-tertiary: #1f2937;
    
    --text-primary: #f8fafc;
    --text-secondary: #cbd5e1;
    --text-muted: #64748b;
    
    --color-primary: hsl(var(--primary-hue), 85%, 85%);
    --color-primary-light: hsl(var(--primary-hue), 70%, 60%);
    --color-teal: hsl(var(--secondary-hue), 75%, 45%);
    --color-teal-hover: hsl(var(--secondary-hue), 85%, 35%);
    
    --border-color: #1f2937;
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.2);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.25);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.3);
    
    --glass-bg: rgba(17, 24, 39, 0.75);
    --glass-border: rgba(31, 41, 55, 0.5);
    --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.2);
}

/* -------------------------------------------------------------
 * RESET & BASE STYLES
 * ------------------------------------------------------------- */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

scroll-behavior: smooth;

body {
    font-family: var(--font-primary);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    transition: background-color var(--transition-normal), color var(--transition-normal);
}

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

button {
    font-family: var(--font-primary);
    cursor: pointer;
    border: none;
    background: none;
    outline: none;
}

input, textarea, select {
    font-family: var(--font-primary);
    outline: none;
    transition: all var(--transition-normal);
}

/* -------------------------------------------------------------
 * REUSABLE COMPONENTS & LAYOUT SYSTEM
 * ------------------------------------------------------------- */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.section {
    padding: 80px 0;
}

.section-title-wrap {
    text-align: center;
    margin-bottom: 50px;
}

.section-tag {
    font-size: 11px;
    font-weight: 800;
    color: var(--color-teal);
    text-transform: uppercase;
    letter-spacing: 2px;
    display: inline-block;
    margin-bottom: 10px;
    background: rgba(20, 184, 166, 0.1);
    padding: 4px 12px;
    border-radius: var(--radius-full);
}

.section-title {
    font-size: 32px;
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: 15px;
    letter-spacing: -0.5px;
}

.section-subtitle {
    font-size: 16px;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* ปุ่มกดสไตล์ต่างๆ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 28px;
    border-radius: var(--radius-md);
    font-weight: 700;
    font-size: 14px;
    transition: all var(--transition-normal);
}

.btn-primary {
    background-color: var(--color-teal);
    color: #ffffff !important;
    box-shadow: 0 4px 14px rgba(20, 184, 166, 0.3);
}

.btn-primary:hover {
    background-color: var(--color-teal-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(20, 184, 166, 0.4);
}

.btn-secondary {
    background-color: transparent;
    color: var(--text-primary);
    border: 2px solid var(--border-color);
}

.btn-secondary:hover {
    background-color: var(--bg-tertiary);
    border-color: var(--text-secondary);
    transform: translateY(-2px);
}

/* -------------------------------------------------------------
 * TOP CONTACT BAR
 * ------------------------------------------------------------- */
.top-bar {
    background-color: #0f172a;
    color: #cbd5e1;
    font-size: 12px;
    padding: 8px 0;
    border-bottom: 1px solid #1e293b;
    z-index: 51;
    position: relative;
}

html.dark .top-bar {
    background-color: #080b13;
}

.top-bar-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
}

.top-bar-left {
    display: flex;
    align-items: center;
    gap: 15px;
}

.top-bar-left a {
    color: #ffffff;
    font-weight: 600;
}

.top-bar-left a:hover {
    color: var(--color-teal);
}

.top-bar-divider {
    color: #334155;
}

.top-bar-right {
    color: #94a3b8;
}

/* -------------------------------------------------------------
 * HEADER / NAVIGATION
 * ------------------------------------------------------------- */
header {
    position: fixed;
    top: 36px;
    left: 0;
    width: 100%;
    z-index: 50;
    transition: all var(--transition-normal);
    border-bottom: 1px solid transparent;
}

header.shadow-md {
    top: 0;
    background-color: var(--glass-bg);
    border-color: var(--glass-border);
    box-shadow: var(--glass-shadow);
    backdrop-filter: blur(12px);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 90px;
}

/* ปรับปรุงโครงสร้างครอบโลโก้ให้ตัดเป็นรูปวงกลมสวยงาม */
.logo {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 65px;
    height: 65px;
    border-radius: 50%;
    overflow: hidden;
    border: 2px solid var(--color-teal);
    background-color: #ffffff; /* ฉากหลังวงกลมสีขาวเพื่อให้เห็นโลโก้ชัดเจนขึ้น */
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
}

.logo-img {
    width: 82%;
    height: 82%;
    object-fit: contain; /* ป้องกันภาพยืดบิดเบี้ยว */
}

.logo:hover {
    transform: scale(1.05);
    border-color: var(--color-amber);
    box-shadow: var(--shadow-md);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 25px;
    list-style: none;
}

.nav-link {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-secondary);
    position: relative;
    padding: 6px 0;
    display: flex;
    align-items: center;
    gap: 5px;
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-teal);
    transition: width var(--transition-normal);
}

.nav-link:hover::after, .nav-link.active::after {
    width: 100%;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 15px;
}

.action-btn {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--bg-tertiary);
    color: var(--text-secondary);
    position: relative;
    font-size: 16px;
    transition: all var(--transition-normal);
}

.action-btn:hover {
    background-color: var(--color-teal);
    color: #ffffff;
    transform: scale(1.05);
}

.cart-count-badge {
    position: absolute;
    top: -5px;
    right: -5px;
    background-color: var(--color-amber);
    color: #000000;
    font-size: 10px;
    font-weight: 800;
    width: 18px;
    height: 18px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 2px 5px rgba(0,0,0,0.15);
}

/* -------------------------------------------------------------
 * HERO SECTION
 * ------------------------------------------------------------- */
.hero-section {
    padding-top: 200px;
    padding-bottom: 100px;
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: -10%;
    right: -10%;
    width: 50%;
    height: 60%;
    background: radial-gradient(circle, rgba(20, 184, 166, 0.08) 0%, rgba(255, 255, 255, 0) 70%);
    z-index: -1;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 50px;
    align-items: center;
}

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

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background-color: var(--bg-tertiary);
    padding: 6px 16px;
    border-radius: var(--radius-full);
    margin-bottom: 25px;
    border: 1px solid var(--border-color);
}

.hero-badge-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: var(--color-teal);
    animation: pulse 1.5s infinite;
}

.hero-badge-text {
    font-size: 12px;
    font-weight: 700;
    color: var(--text-secondary);
}

.hero-title {
    font-size: 48px;
    font-weight: 800;
    line-height: 1.15;
    color: var(--text-primary);
    margin-bottom: 20px;
    letter-spacing: -1px;
}

.hero-title span {
    background: linear-gradient(135deg, var(--color-primary-light), var(--color-teal));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-desc {
    font-size: 16px;
    color: var(--text-secondary);
    margin-bottom: 35px;
    max-width: 540px;
}

.hero-actions {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 40px;
}

.hero-stats {
    display: flex;
    align-items: center;
    gap: 40px;
    border-top: 1px solid var(--border-color);
    padding-top: 30px;
}

.hero-stat-item {
    display: flex;
    flex-direction: column;
}

.hero-stat-num {
    font-size: 24px;
    font-weight: 800;
    color: var(--text-primary);
}

.hero-stat-num span {
    color: var(--color-teal);
}

.hero-stat-label {
    font-size: 12px;
    color: var(--text-secondary);
    font-weight: 500;
}

.hero-image-container {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-image-wrap {
    width: 100%;
    max-width: 480px;
    aspect-ratio: 1;
    border-radius: 30% 70% 70% 30% / 30% 30% 70% 70%;
    background: linear-gradient(135deg, rgba(20, 184, 166, 0.1), rgba(15, 23, 42, 0.05));
    animation: morphing 15s ease-in-out infinite;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    border: 2px solid var(--glass-border);
}

.hero-img {
    width: 90%;
    height: 90%;
    object-fit: cover;
    border-radius: inherit;
    box-shadow: var(--shadow-xl);
}

/* Floating Card Animation */
.floating-card {
    position: absolute;
    background-color: var(--glass-bg);
    border: 1px solid var(--glass-border);
    backdrop-filter: blur(8px);
    border-radius: var(--radius-md);
    padding: 12px 18px;
    display: flex;
    align-items: center;
    gap: 12px;
    box-shadow: var(--shadow-lg);
    animation: float 4s ease-in-out infinite;
}

.floating-card.card-1 {
    top: 10%;
    left: -5%;
    animation-delay: 0s;
}

.floating-card.card-2 {
    bottom: 15%;
    right: -5%;
    animation-delay: 2s;
}

.floating-icon {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
}

.floating-icon.icon-1 {
    background-color: rgba(20, 184, 166, 0.1);
    color: var(--color-teal);
}

.floating-icon.icon-2 {
    background-color: rgba(245, 158, 11, 0.1);
    color: var(--color-amber);
}

.floating-text h5 {
    font-size: 12px;
    font-weight: 700;
    color: var(--text-primary);
}

.floating-text p {
    font-size: 10px;
    color: var(--text-secondary);
}

/* -------------------------------------------------------------
 * STATS BADGES SECTION
 * ------------------------------------------------------------- */
.stats-section {
    background-color: var(--bg-tertiary);
    padding: 40px 0;
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    text-align: center;
}

.stat-card {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.stat-icon {
    font-size: 28px;
    color: var(--color-teal);
    margin-bottom: 15px;
}

.stat-num {
    font-size: 28px;
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: 5px;
}

.stat-text {
    font-size: 13px;
    color: var(--text-secondary);
    font-weight: 500;
}

/* -------------------------------------------------------------
 * PRODUCT CATALOG SECTION
 * ------------------------------------------------------------- */
.catalog-controls {
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin-bottom: 40px;
    align-items: center;
}

.search-bar-wrap {
    position: relative;
    width: 100%;
    max-width: 500px;
}

.search-input {
    width: 100%;
    padding: 14px 20px 14px 50px;
    border-radius: var(--radius-full);
    border: 1px solid var(--border-color);
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    font-size: 14px;
    box-shadow: var(--shadow-sm);
}

.search-input:focus {
    border-color: var(--color-teal);
    box-shadow: 0 0 0 3px rgba(20, 184, 166, 0.15);
}

.search-icon {
    position: absolute;
    top: 50%;
    left: 20px;
    transform: translateY(-50%);
    color: var(--text-muted);
    font-size: 16px;
}

.filter-tabs {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
    justify-content: center;
}

.filter-btn {
    padding: 10px 24px;
    border-radius: var(--radius-full);
    font-size: 13px;
    font-weight: 600;
    transition: all var(--transition-normal);
}

.filter-btn.bg-gray-100 {
    background-color: var(--bg-tertiary);
    color: var(--text-secondary);
}

.filter-btn.bg-gray-100:hover {
    background-color: var(--border-color);
    color: var(--text-primary);
}

.filter-btn.active {
    background-color: var(--color-teal);
    color: #ffffff;
    box-shadow: 0 4px 10px rgba(20, 184, 166, 0.2);
}

/* Grid Layout for Products */
.product-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.product-card {
    display: flex;
    flex-direction: column;
    height: 100%;
}

.product-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.line-clamp-2 {
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.line-through {
    text-decoration: line-through;
}

.text-teal-500 {
    color: var(--color-teal);
}

.text-amber-500 {
    color: var(--color-amber);
}

/* -------------------------------------------------------------
 * LATEST NEWS & ARTICLES SECTION - SLIDER (เฟสสี่)
 * ------------------------------------------------------------- */
.slider-container {
    position: relative;
    width: 100%;
    max-width: 1000px;
    margin: 0 auto;
    overflow: hidden;
    border-radius: var(--radius-lg);
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-md);
    padding: 20px 60px; /* เว้นระยะห่างด้านข้างเพื่อให้เห็นลูกศร */
}

html.dark .slider-container {
    background-color: var(--bg-tertiary);
}

.slider-wrapper {
    display: flex;
    transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    width: 100%;
}

.slide {
    flex-shrink: 0;
    width: 100%;
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 40px;
    align-items: center;
}

.slide-img-wrap {
    width: 100%;
    aspect-ratio: 16/10;
    border-radius: var(--radius-md);
    overflow: hidden;
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    position: relative;
}

.slide-img-wrap img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.slide-category {
    position: absolute;
    top: 15px;
    right: 15px;
    background-color: var(--color-teal);
    color: white;
    font-size: 10px;
    font-weight: 700;
    padding: 3px 10px;
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-sm);
}

.slide-content {
    display: flex;
    flex-direction: column;
    text-align: left;
}

.slide-meta {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 11px;
    color: var(--text-muted);
    margin-bottom: 12px;
}

.slide-title {
    font-size: 20px;
    font-weight: 800;
    color: var(--text-primary);
    line-height: 1.4;
    margin-bottom: 15px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.slide-desc {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 25px;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* ปุ่มควบคุมสไลด์ (ลูกศร) */
.slider-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
    z-index: 10;
}

html.dark .slider-arrow {
    background-color: var(--bg-tertiary);
}

.slider-arrow:hover {
    background-color: var(--color-teal);
    color: white;
    border-color: var(--color-teal);
    transform: translateY(-50%) scale(1.08);
    box-shadow: var(--shadow-md);
}

.slider-arrow.prev {
    left: 15px;
}

.slider-arrow.next {
    right: 15px;
}

/* จุดแสดงหน้าสไลด์ด้านล่าง */
.slider-dots {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-top: 20px;
}

.slider-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background-color: var(--border-color);
    transition: all var(--transition-normal);
}

.slider-dot.active {
    background-color: var(--color-teal);
    width: 24px;
    border-radius: 5px;
}

/* -------------------------------------------------------------
 * SERVICES SHOWCASE SECTION
 * ------------------------------------------------------------- */
.services-section {
    background-color: var(--bg-tertiary);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.service-feature-card {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 40px 30px;
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.service-feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background-color: var(--color-teal);
    transform: scaleY(0);
    transition: transform var(--transition-normal);
    transform-origin: bottom;
}

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

.service-feature-card:hover::before {
    transform: scaleY(1);
}

.service-feature-icon {
    width: 60px;
    height: 60px;
    border-radius: var(--radius-md);
    background-color: rgba(20, 184, 166, 0.08);
    color: var(--color-teal);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    margin-bottom: 25px;
}

.service-feature-title {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 15px;
}

.service-feature-desc {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 20px;
}

.service-feature-link {
    font-size: 13px;
    font-weight: 700;
    color: var(--color-teal);
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.service-feature-link:hover i {
    transform: translateX(4px);
}

.service-feature-link i {
    transition: transform var(--transition-fast);
}

/* -------------------------------------------------------------
 * CONTACT / SERVICE INQUIRY SECTION
 * ------------------------------------------------------------- */
.contact-grid {
    display: grid;
    grid-template-columns: 0.8fr 1.2fr;
    gap: 50px;
    align-items: start;
}

.contact-info-wrap {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.contact-info-card {
    display: flex;
    align-items: flex-start;
    gap: 20px;
}

.contact-info-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    background-color: rgba(20, 184, 166, 0.08);
    color: var(--color-teal);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    flex-shrink: 0;
}

.contact-info-title {
    font-size: 16px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 5px;
}

.contact-info-text {
    font-size: 14px;
    color: var(--text-secondary);
}

.contact-form-wrap {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 40px;
    box-shadow: var(--shadow-md);
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    margin-bottom: 20px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group.col-span-2 {
    grid-column: span 2;
}

.form-label {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-secondary);
}

.form-input {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--border-color);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    border-radius: var(--radius-md);
    font-size: 14px;
}

.form-input:focus {
    border-color: var(--color-teal);
    background-color: var(--bg-secondary);
    box-shadow: 0 0 0 3px rgba(20, 184, 166, 0.15);
}

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

/* -------------------------------------------------------------
 * FOOTER
 * ------------------------------------------------------------- */
footer {
    background-color: #0f172a;
    color: #cbd5e1;
    padding: 70px 0 30px;
    font-size: 14px;
    border-top: 1px solid #1e293b;
}

html.dark footer {
    background-color: #090d16;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr 0.8fr 1.2fr;
    gap: 40px;
    margin-bottom: 50px;
}

.footer-col h4 {
    color: #ffffff;
    font-size: 15px;
    font-weight: 700;
    margin-bottom: 25px;
    position: relative;
    padding-bottom: 8px;
}

.footer-col h4::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 30px;
    height: 2px;
    background-color: var(--color-teal);
}

.footer-col p {
    margin-bottom: 20px;
    color: #94a3b8;
    line-height: 1.7;
}

.social-links {
    display: flex;
    align-items: center;
    gap: 12px;
}

.social-btn {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: #1e293b;
    color: #94a3b8;
    font-size: 14px;
    transition: all var(--transition-fast);
}

.social-btn:hover {
    background-color: var(--color-teal);
    color: #ffffff;
    transform: translateY(-2px);
}

.footer-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-links a {
    color: #94a3b8;
}

.footer-links a:hover {
    color: #ffffff;
    padding-left: 5px;
}

.newsletter-form {
    display: flex;
    gap: 8px;
}

.newsletter-input {
    flex-grow: 1;
    background-color: #1e293b;
    border: 1px solid #334155;
    padding: 10px 16px;
    color: #ffffff;
    border-radius: var(--radius-md);
    font-size: 13px;
}

.newsletter-input:focus {
    border-color: var(--color-teal);
}

.newsletter-btn {
    background-color: var(--color-teal);
    color: #ffffff;
    padding: 10px 16px;
    border-radius: var(--radius-md);
    font-weight: 700;
}

.newsletter-btn:hover {
    background-color: var(--color-teal-hover);
}

.footer-bottom {
    border-top: 1px solid #1e293b;
    padding-top: 30px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 12px;
    color: #64748b;
}

/* -------------------------------------------------------------
 * CART DRAWER (SIDE PANEL)
 * ------------------------------------------------------------- */
.cart-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.4);
    backdrop-filter: blur(4px);
    z-index: 100;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-normal);
}

.cart-overlay.active {
    opacity: 1;
    pointer-events: auto;
}

.cart-drawer {
    position: fixed;
    top: 0;
    right: -400px;
    width: 100%;
    max-width: 400px;
    height: 100%;
    background-color: var(--bg-secondary);
    z-index: 101;
    box-shadow: -10px 0 30px rgba(0,0,0,0.1);
    display: flex;
    flex-direction: column;
    transition: right var(--transition-slow);
}

.cart-drawer.active {
    right: 0;
}

.cart-header {
    padding: 24px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.cart-header h3 {
    font-size: 18px;
    font-weight: 800;
}

.close-cart-btn {
    font-size: 20px;
    color: var(--text-secondary);
}

.close-cart-btn:hover {
    color: var(--text-primary);
}

.cart-items {
    flex-grow: 1;
    overflow-y: auto;
    padding: 24px;
}

.cart-footer {
    padding: 24px;
    border-top: 1px solid var(--border-color);
    background-color: var(--bg-tertiary);
}

.cart-summary-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
}

.cart-summary-label {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-secondary);
}

.cart-summary-value {
    font-size: 20px;
    font-weight: 800;
    color: var(--color-teal);
}

.checkout-btn {
    width: 100%;
}

/* -------------------------------------------------------------
 * MODAL DIALOGS (PRODUCT DETAIL & CHECKOUT)
 * ------------------------------------------------------------- */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(5px);
    z-index: 200;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-normal);
    padding: 20px;
}

.modal-overlay.active {
    opacity: 1;
    pointer-events: auto;
}

.modal-content {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    width: 100%;
    max-width: 800px;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
    box-shadow: var(--shadow-xl);
    transform: scale(0.95);
    transition: transform var(--transition-normal);
}

.modal-overlay.active .modal-content {
    transform: scale(1);
}

.close-modal-btn {
    position: absolute;
    top: 20px;
    right: 20px;
    width: 36px;
    height: 36px;
    border-radius: var(--radius-full);
    background-color: var(--bg-tertiary);
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    z-index: 10;
    transition: all var(--transition-fast);
}

.close-modal-btn:hover {
    background-color: var(--border-color);
    color: var(--text-primary);
}

/* รายละเอียดสินค้าในโมเดล */
.product-modal-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    padding: 40px;
}

.modal-img-wrap {
    background-color: var(--bg-primary);
    border-radius: var(--radius-md);
    overflow: hidden;
    aspect-ratio: 4/3;
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-img-wrap img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.modal-details {
    display: flex;
    flex-direction: column;
}

.modal-category {
    font-size: 11px;
    font-weight: 800;
    color: var(--color-teal);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 8px;
}

.modal-title {
    font-size: 22px;
    font-weight: 800;
    line-height: 1.3;
    margin-bottom: 12px;
}

.modal-rating-wrap {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 20px;
}

.modal-desc {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 25px;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 20px;
}

.modal-features-title {
    font-size: 14px;
    font-weight: 700;
    margin-bottom: 12px;
}

.modal-features-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-bottom: 30px;
}

.modal-price-action {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: auto;
    gap: 20px;
    background-color: var(--bg-tertiary);
    padding: 15px 20px;
    border-radius: var(--radius-md);
}

.modal-price-wrap {
    display: flex;
    flex-direction: column;
}

.modal-price-label {
    font-size: 10px;
    color: var(--text-muted);
    font-weight: 600;
    text-transform: uppercase;
}

/* โมเดลยืนยันการชำระเงิน */
.checkout-modal-content {
    max-width: 500px;
    padding: 40px;
}

.checkout-modal-title {
    font-size: 20px;
    font-weight: 800;
    margin-bottom: 25px;
    text-align: center;
}

.checkout-summary-wrap {
    background-color: var(--bg-tertiary);
    border-radius: var(--radius-md);
    padding: 20px;
    margin-bottom: 25px;
}

.checkout-summary-title {
    font-size: 12px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 8px;
    margin-bottom: 12px;
}

.checkout-summary-list {
    list-style: none;
    max-height: 150px;
    overflow-y: auto;
    margin-bottom: 12px;
}

.checkout-total-row {
    display: flex;
    justify-content: space-between;
    font-weight: 800;
    font-size: 16px;
    color: var(--color-teal);
    border-top: 1px dashed var(--border-color);
    padding-top: 10px;
}

/* -------------------------------------------------------------
 * ADMIN DASHBOARD STYLES
 * ------------------------------------------------------------- */
.admin-tab-btn {
    background: none;
    border: none;
    font-family: var(--font-primary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.admin-tab-btn:hover {
    color: var(--color-teal);
    background-color: rgba(20, 184, 166, 0.05);
}

.admin-table {
    border-collapse: collapse;
}

.admin-table th, .admin-table td {
    padding: 12px;
    border-bottom: 1px solid var(--border-color);
}

.admin-table tbody tr:hover {
    background-color: var(--bg-primary);
}

.admin-table img {
    width: 50px;
    height: 35px;
    object-fit: cover;
    border-radius: 4px;
    background-color: var(--bg-tertiary);
}

/* อนิมชันฟอร์มล็อกอินสั่นดุ๊กดิ๊กเมื่อรหัสผิด */
.shake {
    animation: shake 0.4s ease-in-out;
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    20%, 60% { transform: translateX(-8px); }
    40%, 80% { transform: translateX(8px); }
}

/* -------------------------------------------------------------
 * FLOATING CHAT INBOX WIDGET
 * ------------------------------------------------------------- */
.chat-widget-wrap {
    position: fixed;
    bottom: 30px;
    right: 30px;
    z-index: 90;
    font-family: var(--font-primary);
}

.chat-toggle-btn {
    width: 60px;
    height: 60px;
    border-radius: var(--radius-full);
    background-color: var(--color-teal);
    color: #ffffff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    box-shadow: 0 4px 16px rgba(20, 184, 166, 0.4);
    transition: all var(--transition-normal);
    position: relative;
}

.chat-toggle-btn:hover {
    background-color: var(--color-teal-hover);
    transform: scale(1.08) rotate(-5deg);
    box-shadow: 0 6px 24px rgba(20, 184, 166, 0.5);
}

.chat-notification-pulse {
    position: absolute;
    top: 0;
    right: 0;
    width: 14px;
    height: 14px;
    background-color: var(--color-amber);
    border-radius: 50%;
    border: 2px solid var(--bg-secondary);
    animation: pulse 1.5s infinite;
}

.chat-box {
    position: absolute;
    bottom: 80px;
    right: 0;
    width: 350px;
    height: 480px;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    opacity: 0;
    pointer-events: none;
    transform: translateY(20px) scale(0.95);
    transform-origin: bottom right;
    transition: all var(--transition-normal);
}

.chat-box.active {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0) scale(1);
}

.chat-box-header {
    background: linear-gradient(135deg, var(--color-primary-light), var(--color-teal));
    color: #ffffff;
    padding: 16px 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.chat-box-info {
    display: flex;
    align-items: center;
    gap: 12px;
}

.chat-avatar {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-full);
    background-color: rgba(255,255,255,0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    font-size: 14px;
    color: white;
}

.chat-box-messages {
    flex-grow: 1;
    padding: 20px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 12px;
    background-color: var(--bg-primary);
}

.message {
    max-width: 80%;
    padding: 10px 14px;
    border-radius: 16px;
    font-size: 13px;
    line-height: 1.4;
    word-break: break-word;
}

.message.incoming {
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    align-self: flex-start;
    border-bottom-left-radius: 4px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
}

.message.outgoing {
    background-color: var(--color-teal);
    color: #ffffff;
    align-self: flex-end;
    border-bottom-right-radius: 4px;
    box-shadow: 0 2px 6px rgba(20, 184, 166, 0.15);
}

/* ปุ่มตัวเลือกในแชทบอท */
.chat-option-btn {
    display: block;
    width: 100%;
    text-align: left;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 8px 12px;
    border-radius: var(--radius-sm);
    margin-top: 8px;
    font-size: 11px;
    font-weight: 700;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.chat-option-btn:hover {
    background-color: var(--color-teal);
    color: #ffffff;
    border-color: var(--color-teal);
    transform: translateY(-1px);
}

.chat-box-input-wrap {
    padding: 12px;
    background-color: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    display: flex;
    gap: 8px;
    align-items: center;
}

.chat-input {
    flex-grow: 1;
    border: 1px solid var(--border-color);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    padding: 10px 16px;
    border-radius: var(--radius-full);
    font-size: 13px;
}

.chat-input:focus {
    border-color: var(--color-teal);
    background-color: var(--bg-secondary);
}

.chat-send-btn {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-full);
    background-color: var(--color-teal);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    transition: all var(--transition-fast);
}

.chat-send-btn:hover {
    background-color: var(--color-teal-hover);
    transform: scale(1.05);
}

/* -------------------------------------------------------------
 * ANIMATIONS
 * ------------------------------------------------------------- */
@keyframes pulse {
    0% {
        transform: scale(0.9);
        opacity: 0.6;
    }
    50% {
        transform: scale(1.1);
        opacity: 1;
    }
    100% {
        transform: scale(0.9);
        opacity: 0.6;
    }
}

@keyframes morphing {
    0% {
        border-radius: 30% 70% 70% 30% / 30% 30% 70% 70%;
    }
    50% {
        border-radius: 70% 30% 30% 70% / 70% 70% 30% 30%;
    }
    100% {
        border-radius: 30% 70% 70% 30% / 30% 30% 70% 70%;
    }
}

@keyframes float {
    0% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-8px);
    }
    100% {
        transform: translateY(0);
    }
}

/* -------------------------------------------------------------
 * CART ITEM CUSTOM STYLES (VANILLA CSS)
 * ------------------------------------------------------------- */
.cart-item {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 15px 0;
    border-bottom: 1px solid var(--border-color);
}

.cart-item-img-wrap {
    width: 60px;
    height: 60px;
    border-radius: var(--radius-sm);
    overflow: hidden;
    background-color: var(--bg-tertiary);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    border: 1px solid var(--border-color);
}

.cart-item-img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    padding: 2px;
}

.cart-item-details {
    flex-grow: 1;
    min-width: 0;
}

.cart-item-title {
    font-size: 13px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 6px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.cart-item-price-qty {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.cart-item-price {
    font-size: 13px;
    font-weight: 700;
    color: var(--color-teal);
}

.cart-qty-control {
    display: flex;
    align-items: center;
    gap: 8px;
}

.cart-qty-btn {
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background-color: var(--bg-tertiary);
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 10px;
    transition: all var(--transition-fast);
}

.cart-qty-btn:hover {
    background-color: var(--border-color);
    color: var(--text-primary);
}

.cart-qty-val {
    font-size: 12px;
    font-weight: 600;
    min-width: 15px;
    text-align: center;
}

.cart-item-remove-btn {
    color: var(--text-muted);
    font-size: 14px;
    padding: 5px;
    background: none;
    border: none;
    cursor: pointer;
    transition: color var(--transition-fast);
}

.cart-item-remove-btn:hover {
    color: #ef4444;
}

/* notification badges */
.admin-noti-badge, .tab-noti-badge {
    background-color: #ef4444;
    color: #ffffff !important;
    font-size: 9px;
    font-weight: 800;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-left: 5px;
    vertical-align: middle;
}

.tab-noti-badge {
    margin-left: 5px;
    width: 16px;
    height: 16px;
    font-size: 9px;
}

/* mobile menu toggle */
.mobile-menu-toggle {
    display: none;
    font-size: 24px;
    color: var(--text-primary);
    background: none;
    border: none;
    cursor: pointer;
    z-index: 60;
    transition: color var(--transition-fast);
}

.mobile-menu-toggle:hover {
    color: var(--color-teal);
}

/* -------------------------------------------------------------
 * RESPONSIVE BREAKPOINTS
 * ------------------------------------------------------------- */

/* แท็บเล็ตและหน้าจอขนาดกลาง (1024px) */
@media (max-width: 1024px) {
    header {
        top: 36px;
    }
    header.shadow-md {
        top: 0;
    }
    .hero-grid {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
    }
    .hero-content {
        text-align: center;
        display: flex;
        flex-direction: column;
        align-items: center;
    }
    .hero-desc {
        margin: 0 auto 35px;
    }
    .hero-stats {
        justify-content: center;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 30px;
    }
    
    .product-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .slide {
        grid-template-columns: 1fr;
        gap: 20px;
        text-align: center;
    }

    .slide-content {
        text-align: center;
    }
    
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* โทรศัพท์มือถือ (768px และต่ำกว่า) */
@media (max-width: 768px) {
    header {
        top: 0;
    }
    .top-bar {
        display: none;
    }
    .section {
        padding: 50px 0;
    }
    
    .mobile-menu-toggle {
        display: block;
    }
    
    .nav-container {
        height: 70px;
    }
    
    header.shadow-md .nav-container {
        height: 70px;
    }
    
    .nav-menu {
        display: none;
        flex-direction: column;
        position: fixed;
        top: 70px;
        left: 0;
        width: 100%;
        background-color: var(--bg-secondary);
        border-bottom: 1px solid var(--border-color);
        box-shadow: var(--shadow-lg);
        padding: 20px 24px;
        gap: 15px;
        list-style: none;
        z-index: 55;
    }
    
    .nav-menu.mobile-active {
        display: flex;
        animation: slideDown 0.3s ease-out forwards;
    }
    
    @keyframes slideDown {
        from {
            opacity: 0;
            transform: translateY(-10px);
        }
        to {
            opacity: 1;
            transform: translateY(0);
        }
    }
    
    .hero-title {
        font-size: 34px;
    }
    
    .product-grid {
        grid-template-columns: 1fr;
    }

    .slider-container {
        padding: 20px 40px;
    }

    .slider-arrow {
        width: 36px;
        height: 36px;
        font-size: 12px;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-form-wrap {
        padding: 24px;
    }
    
    .form-grid {
        grid-template-columns: 1fr;
    }
    .form-group.col-span-2 {
        grid-column: span 1;
    }
    
    .product-modal-grid {
        grid-template-columns: 1fr;
        padding: 24px;
        gap: 24px;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 15px;
        text-align: center;
    }
    
    .chat-box {
        width: 300px;
        height: 400px;
    }
}

/* หน้าจอมือถือขนาดเล็กมาก (480px และต่ำกว่า) */
@media (max-width: 480px) {
    .cart-drawer {
        right: -100%;
        max-width: 100%;
    }
    .cart-drawer.active {
        right: 0;
    }
}