/* Giant Bicycles Thailand - Main Stylesheet */
/* Sporty, Trendy, and Corporate Design */

:root {
    --primary-red: #E31E24;
    --primary-black: #1A1A1A;
    --secondary-blue: #0066CC;
    --accent-orange: #FF6B35;
    --text-dark: #2C2C2C;
    --text-light: #666666;
    --bg-light: #F8F8F8;
    --bg-white: #FFFFFF;
    --border-color: #E0E0E0;
    --shadow: 0 2px 10px rgba(0,0,0,0.1);
    --shadow-hover: 0 4px 20px rgba(0,0,0,0.15);
}

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

body {
    font-family: 'Sarabun', 'Helvetica Neue', Arial, sans-serif;
    color: var(--text-dark);
    line-height: 1.6;
    background-color: var(--bg-white);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: 1rem;
    color: var(--primary-black);
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }

p {
    margin-bottom: 1rem;
    color: var(--text-light);
}

a {
    color: var(--secondary-blue);
    text-decoration: none;
    transition: color 0.3s ease;
}

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

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
header {
    background-color: var(--bg-white);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-top {
    background-color: var(--primary-black);
    color: white;
    padding: 10px 0;
    font-size: 0.9rem;
}

.header-top .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.header-main {
    padding: 15px 0;
}

.header-main .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    height: 50px;
}

/* Navigation */
nav ul {
    list-style: none;
    display: flex;
    gap: 30px;
    align-items: center;
}

nav a {
    color: var(--text-dark);
    font-weight: 600;
    padding: 10px 0;
    position: relative;
    transition: color 0.3s ease;
}

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

nav a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary-red);
    transition: width 0.3s ease;
}

nav a:hover::after {
    width: 100%;
}

/* Mobile Menu Toggle */
.menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--primary-black);
}

/* Breadcrumb */
.breadcrumb {
    background-color: var(--bg-light);
    padding: 15px 0;
    font-size: 0.9rem;
}

.breadcrumb ul {
    list-style: none;
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.breadcrumb li::after {
    content: '›';
    margin-left: 10px;
    color: var(--text-light);
}

.breadcrumb li:last-child::after {
    content: '';
}

.breadcrumb a {
    color: var(--text-light);
}

.breadcrumb a:hover {
    color: var(--primary-red);
}

/* Hero Section */
.hero {
    position: relative;
    height: 600px;
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: center;
    color: white;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(26,26,26,0.7) 0%, rgba(227,30,36,0.5) 100%);
}

.hero-content {
    position: relative;
    z-index: 1;
}

.hero h1 {
    font-size: 3.5rem;
    color: white;
    margin-bottom: 20px;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
}

.hero p {
    font-size: 1.3rem;
    color: white;
    margin-bottom: 30px;
    text-shadow: 1px 1px 2px rgba(0,0,0,0.5);
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 15px 35px;
    font-weight: 600;
    border-radius: 5px;
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
    text-align: center;
    font-size: 1rem;
}

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

.btn-primary:hover {
    background-color: #C01A1F;
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
}

.btn-secondary {
    background-color: var(--primary-black);
    color: white;
}

.btn-secondary:hover {
    background-color: #333;
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
}

.btn-outline {
    background-color: transparent;
    color: white;
    border: 2px solid white;
}

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

.btn-group {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
}

/* Section */
section {
    padding: 80px 0;
}

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

.section-title h2 {
    font-size: 2.5rem;
    margin-bottom: 15px;
}

.section-title p {
    font-size: 1.1rem;
    color: var(--text-light);
}

/* Category Grid */
.category-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.category-card {
    background-color: var(--bg-white);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
    cursor: pointer;
}

.category-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-hover);
}

.category-card img {
    width: 100%;
    height: 250px;
    object-fit: cover;
}

.category-card-content {
    padding: 25px;
}

.category-card h3 {
    margin-bottom: 10px;
    color: var(--primary-black);
}

.category-card p {
    color: var(--text-light);
    margin-bottom: 15px;
}

/* Product Grid */
.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.product-card {
    background-color: var(--bg-white);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
}

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

.product-card img {
    width: 100%;
    height: 300px;
    object-fit: cover;
}

.product-card-content {
    padding: 25px;
}

.product-card h3 {
    margin-bottom: 10px;
    font-size: 1.3rem;
}

.product-price {
    color: var(--primary-red);
    font-size: 1.5rem;
    font-weight: 700;
    margin: 10px 0;
}

.product-features {
    list-style: none;
    margin: 15px 0;
}

.product-features li {
    padding: 5px 0;
    color: var(--text-light);
}

.product-features li::before {
    content: '✓ ';
    color: var(--primary-red);
    font-weight: bold;
}

/* Content Section */
.content-section {
    background-color: var(--bg-white);
}

.content-wrapper {
    max-width: 900px;
    margin: 0 auto;
}

.content-wrapper h2 {
    margin-top: 40px;
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 3px solid var(--primary-red);
}

.content-wrapper h3 {
    margin-top: 30px;
    margin-bottom: 15px;
    color: var(--secondary-blue);
}

.content-wrapper ul, .content-wrapper ol {
    margin-left: 30px;
    margin-bottom: 20px;
}

.content-wrapper li {
    margin-bottom: 10px;
    color: var(--text-light);
}

/* Table */
table {
    width: 100%;
    border-collapse: collapse;
    margin: 30px 0;
    background-color: var(--bg-white);
    box-shadow: var(--shadow);
}

thead {
    background-color: var(--primary-black);
    color: white;
}

th, td {
    padding: 15px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

tbody tr:hover {
    background-color: var(--bg-light);
}

/* FAQ Section */
.faq-section {
    background-color: var(--bg-light);
}

.faq-item {
    background-color: var(--bg-white);
    margin-bottom: 20px;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: var(--shadow);
}

.faq-question {
    padding: 20px;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: background-color 0.3s ease;
}

.faq-question:hover {
    background-color: var(--bg-light);
}

.faq-answer {
    padding: 0 20px 20px 20px;
    color: var(--text-light);
}

/* CTA Section */
.cta-section {
    background: linear-gradient(135deg, var(--primary-red) 0%, var(--accent-orange) 100%);
    color: white;
    text-align: center;
}

.cta-section h2 {
    color: white;
    margin-bottom: 20px;
}

.cta-section p {
    color: white;
    font-size: 1.2rem;
    margin-bottom: 30px;
}

/* Footer */
footer {
    background-color: var(--primary-black);
    color: white;
    padding: 60px 0 20px 0;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-section h3 {
    color: white;
    margin-bottom: 20px;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 10px;
}

.footer-section a {
    color: #CCC;
    transition: color 0.3s ease;
}

.footer-section a:hover {
    color: var(--primary-red);
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid #444;
    color: #999;
}

/* Contact Form */
.contact-form {
    max-width: 600px;
    margin: 0 auto;
}

.form-group {
    margin-bottom: 25px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--text-dark);
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--border-color);
    border-radius: 5px;
    font-size: 1rem;
    font-family: inherit;
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary-red);
}

.form-group textarea {
    min-height: 150px;
    resize: vertical;
}

/* Responsive Design */
@media (max-width: 768px) {
    .menu-toggle {
        display: block;
    }

    nav ul {
        display: none;
        flex-direction: column;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background-color: var(--bg-white);
        box-shadow: var(--shadow);
        padding: 20px;
        gap: 15px;
    }

    nav ul.active {
        display: flex;
    }

    .hero h1 {
        font-size: 2rem;
    }

    .hero p {
        font-size: 1rem;
    }

    h1 { font-size: 2rem; }
    h2 { font-size: 1.75rem; }
    h3 { font-size: 1.25rem; }

    .category-grid,
    .product-grid {
        grid-template-columns: 1fr;
    }

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

    .btn {
        width: 100%;
    }

    section {
        padding: 50px 0;
    }
}

@media (max-width: 480px) {
    .hero {
        height: 400px;
    }

    .hero h1 {
        font-size: 1.5rem;
    }

    .container {
        padding: 0 15px;
    }
}

/* Utility Classes */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }
.mt-1 { margin-top: 10px; }
.mt-2 { margin-top: 20px; }
.mt-3 { margin-top: 30px; }
.mb-1 { margin-bottom: 10px; }
.mb-2 { margin-bottom: 20px; }
.mb-3 { margin-bottom: 30px; }
.bg-light { background-color: var(--bg-light); }
.bg-white { background-color: var(--bg-white); }