/* Theme Name: Hieu An Center
Author: Gemini
Description: Giao diện HTML/CSS cho Trung tâm Hiếu An
*/

/* --- 1. CẤU HÌNH CHUNG (VARIABLES) --- */
:root {
    --primary-orange: #D86518;
    /* Earth Orange */
    --primary-green: #2E7D32;
    /* Deep Green */
    --sun-yellow: #FBC02D;
    --text-dark: #2C3E50;
    --text-light: #666666;
    --white: #ffffff;
    --bg-light: #f9fbf7;
}

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

body {
    font-family: 'Nunito', sans-serif;
    color: var(--text-dark);
    line-height: 1.6;
    background-color: var(--white);
}

h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: 'Lora', serif;
    font-weight: 700;
}

a {
    text-decoration: none;
    color: inherit;
    transition: 0.3s;
}

ul {
    list-style: none;
}

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

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

/* --- BUTTONS --- */
.btn {
    display: inline-block;
    padding: 12px 30px;
    border-radius: 50px;
    font-weight: 700;
    cursor: pointer;
    border: none;
    text-align: center;
}

.btn-primary {
    background-color: var(--primary-orange);
    color: var(--white);
    box-shadow: 0 4px 15px rgba(243, 146, 0, 0.3);
}

.btn-primary:hover {
    background-color: #d68000;
    transform: translateY(-2px);
}

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

.section-title h2 {
    font-size: 2.5rem;
    color: var(--primary-green);
    margin-bottom: 10px;
}

.section-title p {
    color: var(--text-light);
}

/* --- 2. HEADER --- */
header {
    background: var(--white);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: 15px 0;
}

.nav-wrapper {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo img {
    height: 60px;
    /* Chiều cao logo */
    width: auto;
}

.nav-links {
    display: flex;
    gap: 30px;
}

.nav-links a {
    font-weight: 600;
    font-size: 16px;
}

.nav-links a:hover {
    color: var(--primary-orange);
}

/* --- 3. HERO SECTION (BANNER) --- */
.hero {
    /* Ảnh nền tạm thời từ Unsplash */
    background: linear-gradient(rgba(255, 255, 255, 0.85), rgba(255, 255, 255, 0.6)),
        url('https://images.unsplash.com/photo-1557825835-b55af7b6534e?auto=format&fit=crop&w=1600&q=80') no-repeat center center/cover;
    padding: 120px 0;
    text-align: center;
}

.hero h1 {
    font-size: 3.5rem;
    color: var(--primary-orange);
    margin-bottom: 20px;
    font-weight: 800;
    line-height: 1.2;
}

.hero p {
    font-size: 1.2rem;
    color: var(--text-dark);
    max-width: 700px;
    margin: 0 auto 30px;
    font-weight: 600;
}

/* --- 4. SERVICES SECTION (DỊCH VỤ) --- */
.services {
    padding: 80px 0;
    background-color: var(--bg-light);
}

.service-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
}

.service-card {
    background: var(--white);
    border-radius: 15px;
    overflow: hidden;
    transition: 0.3s;
    border: 1px solid #eee;
    display: flex;
    flex-direction: column;
    height: 100%;
}

.service-card:hover {
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
    transform: translateY(-5px);
    border-color: var(--primary-orange);
}

.service-thumb {
    width: 100%;
    height: 220px;
    overflow: hidden;
}

.service-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: 0.5s;
}

.service-card:hover .service-thumb img {
    transform: scale(1.1);
}

.service-content {
    padding: 25px;
    text-align: left;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.service-content h3 {
    color: var(--primary-orange);
    margin-bottom: 10px;
    font-size: 1.3rem;
    font-weight: 700;
}

.service-content p {
    color: var(--text-light);
    font-size: 0.95rem;
    margin-bottom: 20px;
    flex-grow: 1;
}

.service-link {
    color: var(--primary-green);
    font-weight: 700;
    font-size: 0.9rem;
    text-transform: uppercase;
    display: inline-flex;
    align-items: center;
    gap: 5px;
}

.service-link:hover {
    color: var(--primary-orange);
    gap: 10px;
}

/* --- 5. ABOUT SECTION --- */
.about {
    padding: 80px 0;
}

.about-wrapper {
    display: flex;
    align-items: center;
    gap: 50px;
    flex-wrap: wrap;
}

.about-img {
    flex: 1;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

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

.about-content {
    flex: 1;
}

.about-content h2 {
    color: var(--primary-green);
    margin-bottom: 20px;
    font-size: 2.5rem;
}

/* --- 6. FOOTER --- */
footer {
    background-color: #2c3e50;
    color: var(--white);
    padding: 60px 0 20px;
}

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

.footer-col h4 {
    color: var(--primary-orange);
    margin-bottom: 20px;
    font-size: 1.2rem;
}

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

.footer-col ul li a:hover {
    color: var(--primary-green);
    padding-left: 5px;
}

.copyright {
    text-align: center;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 20px;
    font-size: 0.9rem;
    color: #aaa;
}

/* --- RESPONSIVE --- */
@media (max-width: 768px) {
    .hero h1 {
        font-size: 2.5rem;
    }

    .nav-links {
        display: none;
    }

    /* Mobile menu sẽ xử lý sau */
    .about-wrapper {
        flex-direction: column;
    }

    .service-grid {
        grid-template-columns: 1fr;
    }
}