/*
Theme Name: HauTheme
Theme URI: https://example.com/hautheme
Author: Nguyen Van Hau
Description: Full featured theme with Customizer, Slideshow, Landing Page, Responsive layout.
Version: 1.5
*/

:root {
    --main-color: #27ae60;
    --bg-color: #f5f5f5;
    --text-color: #333;
    --box-color: #fff;
}

body {
    font-family: Arial, sans-serif;
    background: var(--bg-color);
    margin: 0;
    padding: 0;
    color: var(--text-color);
}

.container {
    max-width: 1200px;
    margin: auto;
    padding: 1rem;
}

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 1rem;
}

/* Bài viết dạng ô vuông */
.post-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 1rem;
}

.post-grid .post-preview {
    background: var(--box-color);
    border: 1px solid #ddd;
    border-radius: 8px;
    overflow: hidden;
    transition: 0.3s ease;
    display: flex;
    flex-direction: column;
    height: 100%;
    text-align: center;
}

.post-grid .post-preview:hover {
    box-shadow: 0 2px 6px rgba(0,0,0,0.1);
}

.post-grid .post-preview img {
    width: 100%;
    height: 150px;
    object-fit: cover;
    display: block;
}

.post-grid .post-preview h2 {
    font-size: 1rem;
    margin: 0.5rem 0;
    padding: 0 0.5rem;
}

.post-grid .post-preview a {
    text-decoration: none;
    color: var(--text-color);
}

.post-grid .post-preview a:hover {
    color: var(--main-color);
}

/* Header & Navbar */
.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.5rem 2rem; /* Căn lề 2 bên */
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.logo {
    width: 60px;
    height: 60px;
    padding: 0;
    margin: 0; /* Xóa thụt lề trái */
}

.logo img {
    width: 60px;
    height: 60px;
    object-fit: contain;
}

/* Navbar menu */
.navbar {
    display: flex;
    align-items: center;
    gap: 5px;
    list-style: none;
    margin: 0;
    padding: 0;
    flex-wrap: wrap;
}
.navbar ul {
    display: flex;
    gap: 5px;
    padding-left: 0;
    margin: 0;
    list-style: none;
    align-items: center;
}
.navbar li {
    list-style: none;
}

.navbar a {
    display: inline-block;
    padding: 0.5rem 1rem;
    background-color: #e9ecef;
    border-radius: 0.25rem;
    text-decoration: none;
    color: var(--text-color);
    transition: background-color 0.3s, color 0.3s;
}

.navbar a:hover {
    background-color: var(--main-color);
    color: #fff;
}



/* Responsive */
@media (max-width: 768px) {
    .header {
        flex-direction: column;
        align-items: flex-start;
    }
}


/* Slideshow */
.slideshow .slider-wrapper {
    display: flex;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    gap: 1rem;
    padding-bottom: 1rem;
}

.slide {
    scroll-snap-align: start;
    flex-shrink: 0;
    width: 100%;
    max-width: 800px;
}

.slide-img {
    width: 100%;
    max-height: 400px;
    object-fit: cover;
    border-radius: 10px;
}

/* Responsive */
@media (max-width: 768px) {
    .header, .navbar {
        flex-direction: column;
        align-items: flex-start;
    }
    .post-grid {
        grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    }
}
.slideshow-container {
    position: relative;
    overflow: hidden;
    width: 100vw;
    margin-left: calc(-50vw + 50%);
}

.slider-wrapper {
    display: flex;
    gap: 1rem;
    overflow-x: auto;
    scroll-behavior: smooth;
    padding: 1rem 0;
    scroll-snap-type: x mandatory;
}

.slide {
    flex-shrink: 0;
    min-width: 100%;
    scroll-snap-align: start;
    display: block;
}

.slide-img {
    width: 100%;
    height: 400px;
    object-fit: cover;
    border-radius: 10px;
}

.slider-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(0,0,0,0.3);
    border: none;
    color: white;
    font-size: 2rem;
    padding: 0.5rem 1rem;
    cursor: pointer;
    z-index: 10;
    border-radius: 5px;
}
.slider-nav.prev { left: 10px; }
.slider-nav.next { right: 10px; }

.fade-slides {
    position: relative;
    width: 100%;
    height: 400px;
}

.fade-slide {
    position: absolute;
    opacity: 0;
    transition: opacity 1s ease-in-out;
    width: 100%;
    height: 100%;
}

.fade-slide.active {
    opacity: 1;
    z-index: 2;
}