:root,
[data-bs-theme="dark"] {
    --bg-primary: #0f0c29;
    --bg-secondary: #302b63;
    --bg-accent: #24243e;
    --glass-bg: rgba(255, 255, 255, 0.08);
    --glass-border: rgba(255, 255, 255, 0.15);
    --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    --text-primary: #f8f9fa;
    --text-muted: rgba(255, 255, 255, 0.65);
    --primary: #4361ee;
    --primary-glow: rgba(67, 97, 238, 0.5);
    --success: #2ec4b6;
    --danger: #e63946;
    --warning: #f4a261;
    --card-generate: linear-gradient(135deg, rgba(67, 97, 238, 0.2), rgba(114, 9, 183, 0.2));
    --card-verify: linear-gradient(135deg, rgba(46, 196, 182, 0.2), rgba(0, 119, 182, 0.2));
}

[data-bs-theme="light"] {
    --bg-primary: #e8ecf4;
    --bg-secondary: #c3cfe2;
    --bg-accent: #f5f7fa;
    --glass-bg: rgba(255, 255, 255, 0.75);
    --glass-border: rgba(0, 0, 0, 0.08);
    --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    --text-primary: #1a1a2e;
    --text-muted: rgba(26, 26, 46, 0.65);
}

* {
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
    color: var(--text-primary);
    min-height: 100vh;
    overflow-x: hidden;
    background: var(--bg-primary);
}

.bg-animation {
    position: fixed;
    inset: 0;
    z-index: -1;
    background: linear-gradient(-45deg, #0f0c29, #302b63, #24243e, #1a1a2e);
    background-size: 400% 400%;
    animation: gradientShift 15s ease infinite;
}

[data-bs-theme="light"] .bg-animation {
    background: linear-gradient(-45deg, #e8ecf4, #c3cfe2, #f5f7fa, #dfe9f3);
}

@keyframes gradientShift {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

.app-wrapper {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.main-content {
    flex: 1;
}

/* Glass components */
.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    box-shadow: var(--glass-shadow);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.glass-nav,
.glass-footer {
    background: var(--glass-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--glass-border);
}

.glass-nav {
    border-radius: 16px;
    margin: 1rem auto 0;
    max-width: calc(100% - 2rem);
}

.glass-input {
    background: rgba(255, 255, 255, 0.06) !important;
    border: 1px solid var(--glass-border) !important;
    color: var(--text-primary) !important;
    border-radius: 12px !important;
    padding: 0.75rem 1rem !important;
}

.glass-input:focus {
    background: rgba(255, 255, 255, 0.1) !important;
    border-color: var(--primary) !important;
    box-shadow: 0 0 0 0.2rem var(--primary-glow) !important;
}

[data-bs-theme="light"] .glass-input {
    background: rgba(255, 255, 255, 0.9) !important;
}

/* Navbar */
.navbar-brand {
    font-weight: 700;
    color: var(--text-primary) !important;
}

.brand-icon {
    width: 36px;
    height: 36px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--primary);
    border-radius: 10px;
    color: #fff;
}

.nav-link {
    color: var(--text-muted) !important;
    font-weight: 500;
    transition: color 0.2s;
}

.nav-link:hover {
    color: var(--text-primary) !important;
}

/* Hero */
.hero-section {
    padding-top: 2rem;
}

.hero-badge {
    display: inline-block;
    padding: 0.5rem 1.25rem;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 50px;
    font-size: 0.875rem;
    color: var(--primary);
}

.hero-title {
    background: linear-gradient(135deg, #fff, #a8b4ff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

[data-bs-theme="light"] .hero-title {
    background: linear-gradient(135deg, #1a1a2e, #4361ee);
    -webkit-background-clip: text;
    background-clip: text;
}

.hero-subtitle {
    max-width: 600px;
    color: var(--text-muted);
}

/* Dashboard cards */
.dashboard-card {
    display: block;
    padding: 2.5rem 2rem;
    color: var(--text-primary);
    height: 100%;
    position: relative;
    overflow: hidden;
}

.dashboard-card::before {
    content: '';
    position: absolute;
    inset: 0;
    opacity: 0;
    transition: opacity 0.3s;
    border-radius: 20px;
}

.card-generate::before {
    background: var(--card-generate);
}

.card-verify::before {
    background: var(--card-verify);
}

.dashboard-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 16px 48px rgba(0, 0, 0, 0.25);
    color: var(--text-primary);
}

.dashboard-card:hover::before {
    opacity: 1;
}

.dashboard-card > * {
    position: relative;
    z-index: 1;
}

.card-icon {
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
    border-radius: 16px;
    margin-bottom: 1.25rem;
    background: var(--primary);
    color: #fff;
}

.card-verify .card-icon {
    background: var(--success);
}

.dashboard-card h3 {
    font-weight: 700;
    margin-bottom: 0.75rem;
}

.dashboard-card p {
    color: var(--text-muted);
    margin-bottom: 1.5rem;
}

.card-action {
    font-weight: 600;
    color: var(--primary);
}

.card-verify .card-action {
    color: var(--success);
}

/* Feature boxes */
.feature-icon {
    font-size: 2rem;
    color: var(--primary);
    margin-bottom: 1rem;
}

/* Buttons */
.btn-glow {
    position: relative;
    border-radius: 12px;
    font-weight: 600;
    padding: 0.75rem 1.5rem;
    transition: all 0.3s ease;
}

.btn-primary.btn-glow {
    background: linear-gradient(135deg, #4361ee, #7209b7);
    border: none;
    box-shadow: 0 4px 20px var(--primary-glow);
}

.btn-primary.btn-glow:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px var(--primary-glow);
}

.btn-success.btn-glow {
    background: linear-gradient(135deg, #2ec4b6, #0077b6);
    border: none;
    box-shadow: 0 4px 20px rgba(46, 196, 182, 0.4);
}

/* Page icons */
.page-icon {
    width: 72px;
    height: 72px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    border-radius: 20px;
    background: linear-gradient(135deg, var(--primary), #7209b7);
    color: #fff;
}

.success-icon {
    font-size: 4rem;
    color: var(--success);
}

/* Certificate details */
.certificate-details {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.detail-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 1.25rem;
    background: rgba(255, 255, 255, 0.04);
    border-radius: 12px;
    border: 1px solid var(--glass-border);
    flex-wrap: wrap;
    gap: 0.5rem;
}

.detail-label {
    color: var(--text-muted);
    font-weight: 500;
}

.detail-value {
    font-weight: 600;
    text-align: right;
}

/* Status pages */
.status-page .status-icon {
    font-size: 5rem;
}

.status-invalid .status-icon {
    color: var(--danger);
}

.status-expired .status-icon {
    color: var(--warning);
}

/* QR preview */
.qr-image {
    max-width: 280px;
    border-radius: 16px;
    border: 4px solid var(--glass-border);
    background: #fff;
    padding: 8px;
}

.certificate-id-box code {
    display: block;
    padding: 0.75rem 1rem;
    background: rgba(0, 0, 0, 0.2);
    border-radius: 8px;
    font-size: 0.85rem;
    word-break: break-all;
}

/* Theme toggle */
.theme-toggle {
    position: fixed;
    bottom: 1.5rem;
    right: 1.5rem;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    border: 1px solid var(--glass-border);
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    color: var(--text-primary);
    cursor: pointer;
    z-index: 1000;
    transition: transform 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
}

.theme-toggle:hover {
    transform: scale(1.1);
}

/* Responsive */
@media (max-width: 768px) {
    .hero-title {
        font-size: 2rem;
    }

    .dashboard-card {
        padding: 2rem 1.5rem;
    }

    .detail-row {
        flex-direction: column;
        align-items: flex-start;
    }

    .detail-value {
        text-align: left;
    }
}

/* SweetAlert2 dark theme override */
.swal2-popup {
    background: var(--glass-bg) !important;
    backdrop-filter: blur(16px);
    border: 1px solid var(--glass-border) !important;
    color: var(--text-primary) !important;
    z-index: 2000 !important;
}

.swal2-container {
    z-index: 2000 !important;
}

.modal {
    z-index: 2050;
}

.modal-backdrop {
    z-index: 2040;
}

.swal2-input {
    background: rgba(255, 255, 255, 0.06) !important;
    color: var(--text-primary) !important;
    border: 1px solid var(--glass-border) !important;
}