/* --- MATERIALISTIC & MINIMALISTIC CAMPUS MARKETPLACE DESIGN --- */
:root {
    --primary: #6200EE;
    --primary-variant: #3700B3;
    --secondary: #03DAC6;
    --bg-dark: #121212;
    --surface-dark: #1E1E1E;
    --surface-elevated: #2C2C2C;
    --text-high: #FFFFFF;
    --text-medium: #A0A0A0;
    --text-disabled: #666666;
    --error: #CF6679;
    --success: #00E676;
    --gold: #FFB300;
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
    --radius-card: 16px;
    --radius-pill: 9999px;
    --radius-btn: 12px;
    --shadow-elevation: 0 4px 20px rgba(0, 0, 0, 0.4);
}

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

body {
    background: var(--bg-dark);
    color: var(--text-high);
    font-family: var(--font-sans);
    font-size: 14px;
    line-height: 1.5;
    min-height: 100vh;
    padding-bottom: 80px;
}

/* Material Header */
.app-header {
    background: rgba(30, 30, 30, 0.95);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    position: sticky;
    top: 0;
    z-index: 100;
    padding: 16px 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.brand-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
}

.brand-icon {
    width: 38px;
    height: 38px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 18px;
}

.brand-name {
    font-size: 18px;
    font-weight: 800;
    color: var(--text-high);
    letter-spacing: -0.5px;
}

.brand-name span {
    color: var(--secondary);
}

.nav-links {
    display: flex;
    gap: 12px;
}

.nav-btn {
    background: rgba(255, 255, 255, 0.06);
    color: var(--text-high);
    border: 1px solid rgba(255, 255, 255, 0.1);
    padding: 8px 16px;
    border-radius: var(--radius-btn);
    font-size: 13px;
    font-weight: 700;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 6px;
    transition: all 0.2s ease;
}

.nav-btn:hover, .nav-btn.active {
    background: var(--primary);
    border-color: var(--primary);
    box-shadow: 0 0 12px rgba(98, 0, 238, 0.4);
}

/* Layout Container */
.main-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 24px 16px;
}

/* Hero Discovery Header */
.hero-section {
    background: linear-gradient(180deg, rgba(98, 0, 238, 0.15) 0%, rgba(18, 18, 18, 0) 100%);
    border-radius: 20px;
    padding: 32px 24px;
    margin-bottom: 24px;
    border: 1px solid rgba(98, 0, 238, 0.2);
}

.hero-title {
    font-size: 28px;
    font-weight: 900;
    color: var(--text-high);
    letter-spacing: -0.5px;
    margin-bottom: 8px;
}

.hero-sub {
    font-size: 14px;
    color: var(--text-medium);
    margin-bottom: 20px;
}

/* Filter Pills Row */
.filter-pills-row {
    display: flex;
    gap: 8px;
    overflow-x: auto;
    padding-bottom: 6px;
}

.pill-btn {
    background: var(--surface-elevated);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--text-medium);
    padding: 8px 16px;
    border-radius: var(--radius-pill);
    font-size: 12px;
    font-weight: 700;
    cursor: pointer;
    white-space: nowrap;
    transition: all 0.2s ease;
}

.pill-btn.active, .pill-btn:hover {
    background: var(--secondary);
    color: #000;
    border-color: var(--secondary);
    box-shadow: 0 0 12px rgba(3, 218, 198, 0.4);
}

/* Event Grid */
.events-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 20px;
}

/* Material Event Card */
.event-card {
    background: var(--surface-dark);
    border-radius: var(--radius-card);
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.08);
    box-shadow: var(--shadow-elevation);
    transition: transform 0.25s ease, border-color 0.25s ease;
    display: flex;
    flex-direction: column;
}

.event-card:hover {
    transform: translateY(-4px);
    border-color: var(--primary);
}

.card-poster-wrap {
    position: relative;
    width: 100%;
    height: 170px;
    background: #000;
    overflow: hidden;
}

.card-poster-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.card-tag {
    position: absolute;
    top: 12px;
    left: 12px;
    background: rgba(0, 0, 0, 0.75);
    backdrop-filter: blur(8px);
    color: var(--secondary);
    font-size: 10px;
    font-weight: 800;
    padding: 4px 10px;
    border-radius: var(--radius-pill);
    text-transform: uppercase;
}

.card-verified-badge {
    position: absolute;
    top: 12px;
    right: 12px;
    background: var(--primary);
    color: #fff;
    font-size: 10px;
    font-weight: 800;
    padding: 4px 10px;
    border-radius: var(--radius-pill);
    display: flex;
    align-items: center;
    gap: 4px;
}

.card-body {
    padding: 16px;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
    justify-content: space-between;
}

.card-uni {
    font-size: 11px;
    font-weight: 800;
    color: var(--secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 4px;
}

.card-event-title {
    font-size: 16px;
    font-weight: 800;
    color: var(--text-high);
    margin-bottom: 8px;
    line-height: 1.3;
}

.card-meta {
    display: flex;
    flex-direction: column;
    gap: 4px;
    font-size: 12px;
    color: var(--text-medium);
    margin-bottom: 16px;
}

.card-price-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 12px;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.card-price {
    font-size: 16px;
    font-weight: 900;
    color: var(--gold);
    font-family: var(--font-mono);
}

.btn-primary {
    background: var(--primary);
    color: #fff;
    border: none;
    padding: 10px 18px;
    border-radius: var(--radius-btn);
    font-size: 13px;
    font-weight: 800;
    cursor: pointer;
    transition: all 0.2s ease;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
}

.btn-primary:hover {
    background: var(--primary-variant);
    box-shadow: 0 4px 16px rgba(98, 0, 238, 0.5);
}

/* Modal Transparent Pricing Breakdown */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(12px);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 16px;
}

.modal-card {
    background: var(--surface-dark);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 20px;
    padding: 24px;
    max-width: 440px;
    width: 100%;
    box-shadow: var(--shadow-elevation);
}

.price-breakdown-box {
    background: var(--surface-elevated);
    border-radius: 12px;
    padding: 16px;
    margin: 16px 0;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.price-line {
    display: flex;
    justify-content: space-between;
    font-size: 13px;
    color: var(--text-medium);
}

.price-line.total {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 8px;
    font-size: 16px;
    font-weight: 900;
    color: var(--gold);
    font-family: var(--font-mono);
}

/* QR Ticket Wallet Card */
.ticket-wallet-card {
    background: #ffffff;
    color: #121212;
    border-radius: 20px;
    padding: 24px;
    max-width: 360px;
    margin: 0 auto 24px auto;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
    position: relative;
    text-align: center;
}

.ticket-header {
    border-bottom: 2px dashed #e0e0e0;
    padding-bottom: 16px;
    margin-bottom: 16px;
}

.ticket-qr-frame {
    background: #000;
    padding: 16px;
    border-radius: 16px;
    display: inline-block;
    margin: 16px 0;
}

.ticket-code-badge {
    background: var(--primary);
    color: #fff;
    font-family: var(--font-mono);
    font-weight: 900;
    font-size: 18px;
    padding: 8px 16px;
    border-radius: 8px;
    letter-spacing: 1px;
    display: inline-block;
}

.status-valid { background: #00E676; color: #000; }
.status-used { background: #E0E0E0; color: #666; }

/* Table Styling */
table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 16px;
}

th, td {
    padding: 12px 16px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    font-size: 13px;
    text-align: left;
}

th {
    background: rgba(255, 255, 255, 0.04);
    font-family: var(--font-mono);
    font-size: 11px;
    text-transform: uppercase;
    color: var(--text-medium);
}

/* ── Auth & Advert Modals & Badges ── */
.nav-auth-btn {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: #fff;
    border: none;
    padding: 8px 16px;
    border-radius: var(--radius-btn);
    font-size: 13px;
    font-weight: 800;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: all 0.2s ease;
    box-shadow: 0 2px 10px rgba(98, 0, 238, 0.3);
}

.nav-auth-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(3, 218, 198, 0.4);
}

.nav-advert-btn {
    background: rgba(255, 179, 0, 0.15);
    color: var(--gold);
    border: 1px solid rgba(255, 179, 0, 0.4);
    padding: 8px 14px;
    border-radius: var(--radius-btn);
    font-size: 13px;
    font-weight: 800;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: all 0.2s ease;
    text-decoration: none;
}

.nav-advert-btn:hover {
    background: var(--gold);
    color: #000;
    box-shadow: 0 0 14px rgba(255, 179, 0, 0.5);
}

.user-profile-badge {
    display: flex;
    align-items: center;
    gap: 8px;
    background: var(--surface-elevated);
    border: 1px solid rgba(255, 255, 255, 0.15);
    padding: 6px 12px;
    border-radius: var(--radius-btn);
    cursor: pointer;
    position: relative;
}

.user-avatar-circle {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 900;
    font-size: 12px;
    color: #fff;
}

.user-dropdown-menu {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    background: var(--surface-dark);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 12px;
    padding: 8px;
    min-width: 180px;
    box-shadow: var(--shadow-elevation);
    display: none;
    flex-direction: column;
    gap: 4px;
    z-index: 200;
}

.user-dropdown-menu.show {
    display: flex;
}

.user-dropdown-item {
    padding: 8px 12px;
    border-radius: 8px;
    color: var(--text-high);
    font-size: 13px;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    text-decoration: none;
    transition: background 0.15s ease;
}

.user-dropdown-item:hover {
    background: rgba(255, 255, 255, 0.08);
    color: var(--secondary);
}

/* Modal Tabs */
.modal-tabs-header {
    display: flex;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    margin-bottom: 20px;
    gap: 8px;
}

.modal-tab-btn {
    background: none;
    border: none;
    color: var(--text-medium);
    padding: 10px 16px;
    font-size: 14px;
    font-weight: 800;
    cursor: pointer;
    border-bottom: 2px solid transparent;
    transition: all 0.2s ease;
}

.modal-tab-btn.active {
    color: var(--secondary);
    border-bottom-color: var(--secondary);
}

/* Advert Banner in Hero */
.advert-cta-card {
    background: linear-gradient(135deg, rgba(255, 179, 0, 0.12), rgba(98, 0, 238, 0.15));
    border: 1px solid rgba(255, 179, 0, 0.3);
    border-radius: 16px;
    padding: 16px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 18px;
}

.advert-package-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
    gap: 8px;
    margin-top: 6px;
}

.advert-pkg-card {
    background: var(--surface-elevated);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    padding: 10px;
    cursor: pointer;
    text-align: center;
    transition: all 0.2s ease;
}

.advert-pkg-card:hover, .advert-pkg-card.selected {
    border-color: var(--gold);
    background: rgba(255, 179, 0, 0.12);
}

.advert-pkg-title {
    font-size: 12px;
    font-weight: 800;
    color: #fff;
}

.advert-pkg-price {
    font-size: 13px;
    font-weight: 900;
    color: var(--gold);
    font-family: var(--font-mono);
    margin-top: 4px;
}

/* ── COMPREHENSIVE RESPONSIVE MOBILE EXPERIENCE ── */

/* Mobile Bottom Navigation Bar (Hidden on Desktop) */
.mobile-bottom-nav {
    display: none;
}

@media (max-width: 768px) {
    body {
        padding-bottom: 90px;
    }

    /* Compact App Header on Mobile */
    .app-header {
        padding: 12px 16px;
    }

    .brand-icon {
        width: 32px;
        height: 32px;
        font-size: 14px;
        border-radius: 8px;
    }

    .brand-name {
        font-size: 16px;
        letter-spacing: -0.3px;
    }

    /* Hide desktop nav buttons in top header on mobile */
    .nav-links > a.nav-btn {
        display: none !important;
    }

    /* Compact auth container in header */
    #navAuthContainer {
        margin-left: auto;
    }

    .nav-advert-btn {
        display: none !important; /* accessible via bottom nav or cards */
    }

    .nav-auth-btn {
        padding: 6px 12px;
        font-size: 12px;
        border-radius: 8px;
    }

    .user-profile-badge {
        padding: 4px 8px;
    }

    .user-profile-badge span {
        display: none;
    }

    .user-profile-badge i {
        display: none;
    }

    /* Main Container Padding */
    .main-container {
        padding: 12px 14px 20px 14px;
    }

    /* Hero Section Responsive */
    .hero-section {
        padding: 18px 16px;
        border-radius: 16px;
        margin-bottom: 16px;
    }

    .hero-title {
        font-size: clamp(20px, 5.5vw, 24px);
        margin-bottom: 6px;
        line-height: 1.25;
    }

    .hero-sub {
        font-size: 12.5px;
        margin-bottom: 14px;
        line-height: 1.4;
    }

    /* Search Input Mobile (16px font avoids iOS Safari zoom) */
    .search-container {
        margin: 12px 0 14px 0;
    }

    .search-input {
        padding: 12px 16px 12px 42px;
        font-size: 16px;
        border-radius: 12px;
    }

    .search-icon {
        left: 14px;
        font-size: 15px;
    }

    /* Filter Pills Horizontal Smooth Swipe */
    .filter-pills-row,
    .month-filter-row {
        gap: 6px;
        padding-bottom: 4px;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: none;
    }

    .filter-pills-row::-webkit-scrollbar,
    .month-filter-row::-webkit-scrollbar {
        display: none;
    }

    .pill-btn {
        padding: 6px 13px;
        font-size: 11.5px;
        border-radius: 20px;
    }

    .filter-header-bar {
        gap: 10px;
        margin-bottom: 14px;
    }

    /* Advert CTA in Hero */
    .advert-cta-card {
        padding: 14px;
        flex-direction: column;
        align-items: stretch;
        text-align: left;
        gap: 12px;
    }

    .advert-cta-card button {
        width: 100%;
        justify-content: center;
    }

    /* Events Grid on Mobile */
    .events-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .event-card {
        border-radius: 16px;
    }

    .card-poster-wrap {
        height: 180px;
    }

    .card-body {
        padding: 14px;
    }

    .card-event-title {
        font-size: 16px;
        margin-bottom: 6px;
    }

    .card-meta {
        font-size: 12px;
        margin-bottom: 12px;
        gap: 3px;
    }

    .card-price-row {
        padding-top: 10px;
    }

    .card-price {
        font-size: 17px;
    }

    .btn-primary {
        padding: 10px 16px;
        min-height: 44px;
        font-size: 13.5px;
        border-radius: 10px;
    }

    /* Bottom Navigation Bar (Native App Style) */
    .mobile-bottom-nav {
        display: flex;
        position: fixed;
        bottom: 0;
        left: 0;
        right: 0;
        height: 60px;
        background: rgba(20, 20, 24, 0.96);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        border-top: 1px solid rgba(255, 255, 255, 0.1);
        z-index: 9999;
        padding: 0 8px;
        padding-bottom: env(safe-area-inset-bottom, 0px);
        justify-content: space-around;
        align-items: center;
        box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.4);
    }

    .bottom-nav-item {
        flex: 1;
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        text-decoration: none;
        color: var(--text-medium);
        padding: 6px 0;
        gap: 4px;
        font-size: 10px;
        font-weight: 700;
        transition: all 0.2s ease;
        background: none;
        border: none;
        cursor: pointer;
    }

    .bottom-nav-item i {
        font-size: 17px;
        transition: transform 0.2s ease;
    }

    .bottom-nav-item.active,
    .bottom-nav-item:active {
        color: var(--secondary);
    }

    .bottom-nav-item.active i {
        transform: translateY(-2px);
    }

    /* Modal Bottom Sheet on Mobile */
    .modal-overlay {
        align-items: flex-end;
        padding: 0;
    }

    .modal-card {
        border-radius: 24px 24px 0 0;
        max-width: 100% !important;
        width: 100%;
        max-height: 90vh;
        overflow-y: auto;
        padding: 20px 18px 30px 18px;
        animation: slideUpModal 0.25s cubic-bezier(0.16, 1, 0.3, 1);
    }

    @keyframes slideUpModal {
        from { transform: translateY(100%); }
        to { transform: translateY(0); }
    }

    /* Form Controls on Mobile (font-size 16px prevents iOS Safari auto-zoom) */
    .form-control,
    input, select, textarea {
        font-size: 16px !important;
    }

    /* Ticket Wallet Card Mobile */
    .ticket-print-wrap {
        padding: 0 4px;
    }
}