/* ==========================================================================
   Premium VR Theme - Visual Tour Phetchabun
   ========================================================================== */

/* Import Google Fonts - Kanit */
@import url('https://fonts.googleapis.com/css2?family=Kanit:wght@300;400;500;600;700&display=swap');

:root {
    --vr-bg-dark: #0f172a;
    --vr-bg-darker: #020617;
    --vr-accent-1: #3b82f6; /* Blue */
    --vr-accent-2: #8b5cf6; /* Purple */
    --vr-accent-3: #ec4899; /* Pink */
    --vr-text-main: #f8fafc;
    --vr-text-muted: #94a3b8;
    --glass-bg: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
    --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    font-family: 'Kanit', sans-serif !important;
    background-color: var(--vr-bg-darker) !important;
    color: var(--vr-text-main) !important;
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Kanit', sans-serif !important;
    color: var(--vr-text-main) !important;
}

/* =========================================
   Hero Section Redesign
   ========================================= */
.vr-hero {
    position: relative;
    padding: 100px 0 60px;
    background: radial-gradient(circle at 50% 0%, var(--vr-bg-dark), var(--vr-bg-darker));
    overflow: hidden;
    text-align: center;
}

/* Animated gradient background blob */
.vr-hero::before {
    content: '';
    position: absolute;
    top: -50%;
    left: 50%;
    transform: translateX(-50%);
    width: 600px;
    height: 600px;
    background: linear-gradient(45deg, var(--vr-accent-1), var(--vr-accent-2), var(--vr-accent-3));
    border-radius: 50%;
    filter: blur(100px);
    opacity: 0.3;
    z-index: 0;
    animation: blobBounce 10s infinite alternate ease-in-out;
}

@keyframes blobBounce {
    0% { transform: translateX(-50%) translateY(0) scale(1); }
    100% { transform: translateX(-50%) translateY(50px) scale(1.1); }
}

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

.vr-hero h1.section-title {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 20px;
    background: linear-gradient(to right, #60a5fa, #c084fc, #f472b6);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.vr-hero h6 {
    font-size: 1.1rem;
    font-weight: 300;
    color: var(--vr-text-muted) !important;
    max-width: 800px;
    margin: 0 auto 30px;
    line-height: 1.8;
}

/* =========================================
   District Header
   ========================================= */
.district-header {
    width: 100%;
    margin-top: 50px;
    margin-bottom: 30px;
    padding: 0 15px;
    position: relative;
}

.district-header h2 {
    font-size: 2.2rem;
    font-weight: 600;
    background: linear-gradient(to right, #60a5fa, #c084fc);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    display: inline-block;
    margin-bottom: 10px;
}

.district-header .underline {
    height: 4px;
    width: 60px;
    background: linear-gradient(to right, #60a5fa, #ec4899);
    border-radius: 2px;
}

/* =========================================
   Portfolio Grid & Glassmorphism Cards
   ========================================= */
.portfolio-container {
    padding: 20px 0 60px;
}

.portfolio-item {
    margin-bottom: 30px;
}

.portfolio-item > div {
    border-radius: 20px;
    overflow: hidden;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    box-shadow: var(--glass-shadow);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    transition: all 0.4s ease;
    height: 100%;
}

.portfolio-item > div:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(0,0,0,0.5);
    border-color: rgba(255,255,255,0.2);
}

.portfolio-item .portfolio-img {
    height: 250px;
    overflow: hidden;
    position: relative;
    top: 0 !important; /* Override original style */
    background: #1e293b; /* Fallback color for missing images */
}

.portfolio-item .portfolio-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
}

.portfolio-item > div:hover .portfolio-img img {
    transform: scale(1.1);
}

/* Re-styling the text overlay to be a clean bottom info bar instead of hover overlay */
.portfolio-item .portfolio-text {
    position: relative !important; /* Override original absolute positioning */
    top: 0 !important;
    background: transparent !important; /* Remove bg-primary */
    padding: 25px 20px !important;
    height: auto !important;
    display: block !important;
    text-align: center;
}

.portfolio-item .portfolio-text h4 {
    color: var(--vr-text-main);
    font-size: 1.4rem;
    font-weight: 600;
    margin-bottom: 10px !important;
    transition: color 0.3s ease;
}

.portfolio-item > a:hover h4 {
    background: linear-gradient(to right, #60a5fa, #c084fc);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.portfolio-item .portfolio-text .d-flex {
    color: var(--vr-text-muted);
    font-size: 0.95rem;
    font-weight: 300;
}

/* Remove original link wrapping that breaks layout */
.portfolio-item a {
    text-decoration: none !important;
    display: block;
    height: 100%;
}

/* Filter buttons */
#portfolio-flters .btn {
    border-radius: 30px;
    padding: 8px 25px;
    font-weight: 500;
    background: transparent;
    border: 1px solid var(--glass-border);
    color: var(--vr-text-main);
    transition: all 0.3s ease;
}

#portfolio-flters .btn:hover,
#portfolio-flters .btn.active {
    background: linear-gradient(45deg, var(--vr-accent-1), var(--vr-accent-2));
    border-color: transparent;
    box-shadow: 0 4px 15px rgba(59, 130, 246, 0.4);
    color: #fff;
}

/* Back to top button */
.back-to-top {
    background: linear-gradient(45deg, var(--vr-accent-1), var(--vr-accent-2)) !important;
    border: none !important;
    border-radius: 50% !important;
    width: 45px;
    height: 45px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 15px rgba(0,0,0,0.3);
}

/* Fix link nested layout issues in original HTML */
.portfolio-item {
    padding: 0 15px !important; /* Give some spacing between cards */
}

/* =========================================
   Premium Navbar
   ========================================= */
.premium-navbar {
    background: rgba(2, 6, 23, 0.8) !important;
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    border-bottom: 1px solid var(--glass-border);
    transition: all 0.3s ease;
}

.premium-navbar .navbar-brand {
    font-weight: 700;
    font-size: 1.5rem;
    background: linear-gradient(to right, #60a5fa, #c084fc);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.premium-navbar .nav-link {
    color: var(--vr-text-main) !important;
    font-weight: 500;
    margin: 0 10px;
    transition: color 0.3s ease;
}

.premium-navbar .nav-link:hover {
    color: var(--vr-accent-3) !important;
}

.premium-navbar .navbar-toggler {
    border-color: rgba(255, 255, 255, 0.5);
    outline: none !important;
}

.premium-navbar .navbar-toggler-icon {
    background-image: url("data:image/svg+xml;charset=utf8,%3Csvg viewBox='0 0 30 30' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath stroke='rgba(255, 255, 255, 0.8)' stroke-width='2' stroke-linecap='round' stroke-miterlimit='10' d='M4 7h22M4 15h22M4 23h22'/%3E%3C/svg%3E");
}

/* Mobile Adjustments */
@media (max-width: 991px) {
    .premium-navbar .navbar-collapse {
        background: var(--vr-bg-darker);
        padding: 15px;
        border-radius: 10px;
        margin-top: 10px;
        border: 1px solid var(--glass-border);
    }
    
    .vr-hero {
        padding-top: 120px; /* offset for navbar */
    }
}