/* css/style.css (ไฟล์ใหม่) */
:root {
    --primary-color: #E50914;
    /* Netflix-like Red */
    --secondary-color: #ff4d4d;
    /* Lighter Red */
    --accent-color: #ff0000;
    /* Pure Red */
    --dark-bg: #000000;
    /* Pure Black for contrast */
    --light-bg: #0a0a0a;
    /* Almost Black */
    --warning-color: #f59e0b;
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, var(--dark-bg) 0%, var(--light-bg) 100%);
    color: #fff;
    overflow-x: hidden;
    min-height: 100vh;
}

/* === 1. PRELOADER === */
.preloader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--dark-bg);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    transition: opacity 0.5s ease, visibility 0.5s ease;
    opacity: 1;
    visibility: visible;
}

.preloader .spinner {
    width: 50px;
    height: 50px;
    border: 5px solid rgba(255, 255, 255, 0.2);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* === 2. NAVBAR (Glassmorphism) === */
.navbar {
    background: rgba(0, 0, 0, 0.9);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(229, 9, 20, 0.3);
    /* Red border glow */
    padding: 1rem 0;
}

.navbar-brand {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--primary-color);
    text-shadow: 0 0 10px rgba(229, 9, 20, 0.5);
}

.navbar-toggler {
    border-color: rgba(255, 255, 255, 0.2);
}

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

/* === 3. OFF-CANVAS (เมนูสไลด์) === */
.offcanvas {
    background: rgba(15, 23, 42, 0.9);
    backdrop-filter: blur(15px);
    border-left: 1px solid rgba(255, 255, 255, 0.1);
}

.offcanvas-header {
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.offcanvas-title {
    color: #fff;
    font-weight: bold;
}

.offcanvas-body .navbar-nav .nav-link {
    font-size: 1.5rem;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.8);
    padding: 1rem;
    text-align: center;
    border-radius: 10px;
    transition: all 0.3s ease;
}

.offcanvas-body .navbar-nav .nav-link i {
    width: 30px;
}

.offcanvas-body .navbar-nav .nav-link:hover {
    color: #fff;
    transform: scale(1.05);
    background: rgba(255, 255, 255, 0.05);
}

@keyframes slideInFromRight {
    from {
        opacity: 0;
        transform: translateX(50px);
    }

    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.offcanvas-body .nav-item {
    opacity: 0;
}

/* === 4. LANDING PAGE (Hero) === */
.animated-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    overflow: hidden;
}

.floating-shape {
    position: absolute;
    border-radius: 50%;
    filter: blur(60px);
    opacity: 0.3;
    transition: transform 0.2s ease-out;
}

.shape-1 {
    width: 400px;
    height: 400px;
    background: var(--primary-color);
    top: -100px;
    left: -100px;
}

.shape-2 {
    width: 300px;
    height: 300px;
    background: var(--accent-color);
    bottom: -150px;
    right: -100px;
}

.shape-3 {
    width: 350px;
    height: 350px;
    background: var(--secondary-color);
    top: 50%;
    right: 10%;
}

.hero-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 2rem 0;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
    color: #fff;
    text-shadow: 0 0 20px rgba(229, 9, 20, 0.8);
    opacity: 0;
}

.hero-subtitle {
    font-size: 1.3rem;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 2rem;
    animation: fadeInUp 1s ease-out 0.2s both;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* === 5. LOGIN/REGISTER CARD (หน้า Landing) === */
.login-card {
    background: rgba(10, 10, 10, 0.8);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(229, 9, 20, 0.2);
    border-radius: 20px;
    padding: 3rem;
    box-shadow: 0 0 30px rgba(229, 9, 20, 0.1);
    animation: fadeInUp 1s ease-out 0.4s both;
    transition: transform 0.3s ease;
    display: none;
}

.login-card.active {
    display: block;
}

.login-card:hover {
    transform: translateY(-5px);
}

/* === 6. DASHBOARD CARD (หน้า Home) === */
.dashboard-card,
.content-card {
    background: rgba(10, 10, 10, 0.8);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-left: 3px solid var(--primary-color);
    border-radius: 20px;
    padding: 2rem;
    margin-bottom: 2rem;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}

.credit-display {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

/* === 7. FORM & BUTTONS === */
.form-control {
    background: rgba(15, 23, 42, 0.5);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: #fff;
    padding: 0.75rem 1rem;
    border-radius: 10px;
    transition: all 0.3s ease;
}

.form-control:focus {
    background: rgba(15, 23, 42, 0.7);
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
    color: #fff;
}

.form-control::placeholder {
    color: rgba(255, 255, 255, 0.5);
}

.btn-primary,
.btn-warning {
    border: none;
    padding: 0.75rem 2rem;
    border-radius: 10px;
    font-weight: 600;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
}

.btn-warning {
    background: linear-gradient(135deg, var(--warning-color), var(--accent-color));
}

.btn-primary:hover,
.btn-warning:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(99, 102, 241, 0.4);
}

/* === 8. FEATURES & FOOTER === */
.fade-in {
    opacity: 0;
    animation: fadeInUp 0.6s ease-out forwards;
}

.feature-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    margin-bottom: 1rem;
    transition: transform 0.3s ease;
}

.feature-card:hover .feature-icon {
    transform: rotate(10deg) scale(1.1);
}

.feature-card {
    background: rgba(30, 41, 59, 0.4);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 15px;
    padding: 2rem;
    transition: all 0.3s ease;
    height: 100%;
}

.feature-card:hover {
    transform: translateY(-10px);
    border-color: var(--primary-color);
    box-shadow: 0 15px 40px rgba(99, 102, 241, 0.2);
}

footer {
    background: rgba(15, 23, 42, 0.8);
    backdrop-filter: blur(10px);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding: 2rem 0;
    margin-top: 4rem;
}

/* === 9. SWEETALERT2 THEME === */
.swal2-popup {
    background: rgba(30, 41, 59, 0.8) !important;
    backdrop-filter: blur(20px) !important;
    border: 1px solid rgba(255, 255, 255, 0.1) !important;
    border-radius: 20px !important;
}

.swal2-title {
    color: #fff !important;
}

.swal2-html-container {
    color: rgba(255, 255, 255, 0.8) !important;
}

.swal2-confirm {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color)) !important;
    border: none !important;
    box-shadow: none !important;
}

.swal2-error-icon .x-mark {
    border-color: #ec4899 !important;
}

.swal2-warning-icon {
    border-color: var(--warning-color) !important;
    color: var(--warning-color) !important;
}

.swal2-info-icon {
    border-color: var(--primary-color) !important;
    color: var(--primary-color) !important;
}

.swal2-timer-progress-bar {
    background: var(--primary-color) !important;
}

/* === 10. RESPONSIVE === */
@media (max-width: 991px) {
    .hero-section {
        text-align: center;
    }

    .hero-section .d-flex {
        justify-content: center;
    }
}

@media (max-width: 768px) {
    .hero-title {
        font-size: 2.5rem;
    }

    .hero-subtitle {
        font-size: 1.1rem;
    }

    .login-card {
        padding: 2rem;
    }
}