/* =============================================
   St. Aloysius College – Vehicle Perad System
   Developed by Ishan Kawinda (16th Batch)
   ============================================= */

:root {
    --navy: #0c2c50;
    --navy-dark: #071c35;
    --navy-light: #1a4070;
    --gold: #d4af37;
    --gold-light: #f0d060;
    --gold-dark: #b8960c;
    --white: #ffffff;
    --off-white: #f4f6f8;
    --text-muted: #8a9bb5;
    --error: #e74c3c;
    --success: #27ae60;
    --border: rgba(212,175,55,0.25);
    --shadow: 0 8px 40px rgba(7, 28, 53, 0.35);
    --radius: 16px;
    --radius-sm: 8px;
}

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: 'Lato', sans-serif;
    background: linear-gradient(135deg, #071c35 0%, #0c2c50 40%, #1a3a60 100%);
    min-height: 100vh;
    color: var(--white);
    display: flex;
    flex-direction: column;
    position: relative;
    overflow-x: hidden;
}

body::before {
    content: '';
    position: fixed;
    inset: 0;
    background:
        radial-gradient(ellipse at 20% 20%, rgba(212,175,55,0.08) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 80%, rgba(26,64,112,0.4) 0%, transparent 50%);
    pointer-events: none;
    z-index: 0;
}

/* ========== HEADER ========== */
.site-header {
    background: linear-gradient(180deg, rgba(7,28,53,0.98) 0%, rgba(12,44,80,0.95) 100%);
    border-bottom: 2px solid var(--gold);
    padding: 20px 20px 18px;
    position: relative;
    z-index: 10;
    box-shadow: 0 4px 30px rgba(0,0,0,0.4);
}

.header-inner {
    max-width: 900px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    gap: 20px;
}

.crest-logo {
    width: 72px;
    height: 72px;
    object-fit: contain;
    filter: drop-shadow(0 2px 8px rgba(212,175,55,0.4));
    flex-shrink: 0;
}

.header-text {
    flex: 1;
}

.college-name {
    font-family: 'Cinzel', serif;
    font-size: clamp(1.2rem, 3.5vw, 1.8rem);
    font-weight: 700;
    color: var(--gold);
    letter-spacing: 1px;
    line-height: 1.2;
    text-shadow: 0 2px 8px rgba(0,0,0,0.3);
}

.college-sub {
    font-size: 0.8rem;
    color: var(--text-muted);
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-top: 2px;
}

.event-title {
    font-family: 'Cinzel', serif;
    font-size: clamp(0.85rem, 2vw, 1.05rem);
    color: var(--white);
    margin-top: 6px;
    font-weight: 400;
    letter-spacing: 0.5px;
}

/* ========== MAIN ========== */
.main-content {
    flex: 1;
    padding: 30px 16px 40px;
    position: relative;
    z-index: 1;
    display: flex;
    align-items: flex-start;
    justify-content: center;
}

/* ========== FORM CARD ========== */
.form-container, .success-container {
    width: 100%;
    max-width: 580px;
}

.form-card, .success-card {
    background: linear-gradient(160deg, rgba(255,255,255,0.06) 0%, rgba(255,255,255,0.02) 100%);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 36px 32px;
    box-shadow: var(--shadow);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

.form-header {
    text-align: center;
    margin-bottom: 28px;
    padding-bottom: 24px;
    border-bottom: 1px solid var(--border);
}

.shield-icon {
    font-size: 2.5rem;
    margin-bottom: 10px;
    display: block;
}

.form-header h2 {
    font-family: 'Cinzel', serif;
    font-size: 1.5rem;
    color: var(--gold);
    font-weight: 600;
    margin-bottom: 6px;
}

.form-header p {
    font-size: 0.875rem;
    color: var(--text-muted);
}

/* ========== FORM ELEMENTS ========== */
.form-group {
    margin-bottom: 22px;
}

.form-group label {
    display: block;
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    color: var(--gold);
    margin-bottom: 8px;
}

.input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.input-icon {
    position: absolute;
    left: 14px;
    font-size: 1rem;
    z-index: 1;
    pointer-events: none;
}

.form-input {
    width: 100%;
    padding: 13px 14px 13px 44px;
    background: rgba(255,255,255,0.07);
    border: 1.5px solid rgba(212,175,55,0.3);
    border-radius: var(--radius-sm);
    color: var(--white);
    font-size: 0.95rem;
    font-family: 'Lato', sans-serif;
    transition: all 0.3s ease;
    outline: none;
    -webkit-appearance: none;
}

.form-input:focus {
    border-color: var(--gold);
    background: rgba(212,175,55,0.08);
    box-shadow: 0 0 0 3px rgba(212,175,55,0.15);
}

.form-input::placeholder {
    color: rgba(255,255,255,0.3);
    font-size: 0.85rem;
}

/* ========== VEHICLE TYPE GRID ========== */
.vehicle-type-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 10px;
}

.type-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 14px 8px;
    background: rgba(255,255,255,0.05);
    border: 1.5px solid rgba(212,175,55,0.2);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all 0.25s ease;
    user-select: none;
}

.type-card input[type="radio"] {
    display: none;
}

.type-card:hover {
    border-color: var(--gold);
    background: rgba(212,175,55,0.1);
    transform: translateY(-2px);
}

.type-card.selected, .type-card:has(input:checked) {
    border-color: var(--gold);
    background: rgba(212,175,55,0.18);
    box-shadow: 0 0 0 2px rgba(212,175,55,0.3);
}

.type-icon {
    font-size: 1.8rem;
    line-height: 1;
}

.type-label {
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 1px;
    text-transform: uppercase;
    color: var(--gold-light);
}

/* ========== MATH CAPTCHA ========== */
.math-captcha-row {
    display: flex;
    gap: 12px;
    align-items: center;
    flex-wrap: wrap;
}

.math-question {
    display: flex;
    align-items: center;
    gap: 10px;
    background: rgba(212,175,55,0.1);
    border: 1.5px solid rgba(212,175,55,0.35);
    border-radius: var(--radius-sm);
    padding: 12px 18px;
    flex-shrink: 0;
    white-space: nowrap;
}

.math-icon {
    font-size: 1.2rem;
}

.math-text {
    font-size: 1rem;
    color: var(--white);
    letter-spacing: 0.5px;
}

.math-text strong {
    color: var(--gold);
    font-size: 1.15rem;
    font-family: 'Cinzel', serif;
    letter-spacing: 2px;
}

/* ========== BUTTONS ========== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 28px;
    border-radius: var(--radius-sm);
    font-family: 'Lato', sans-serif;
    font-weight: 700;
    font-size: 0.9rem;
    letter-spacing: 1px;
    text-transform: uppercase;
    text-decoration: none;
    cursor: pointer;
    border: none;
    transition: all 0.25s ease;
}

.btn-primary {
    background: linear-gradient(135deg, var(--gold) 0%, var(--gold-dark) 100%);
    color: var(--navy-dark);
    box-shadow: 0 4px 15px rgba(212,175,55,0.35);
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--gold-light) 0%, var(--gold) 100%);
    box-shadow: 0 6px 25px rgba(212,175,55,0.5);
    transform: translateY(-1px);
}

.btn-submit {
    width: 100%;
    margin-top: 8px;
    padding: 16px;
    font-size: 1rem;
}

.btn-download {
    background: rgba(212,175,55,0.12);
    color: var(--gold);
    border: 1.5px solid var(--gold);
}

.btn-download:hover {
    background: rgba(212,175,55,0.25);
}

/* ========== ALERTS ========== */
.alert {
    padding: 13px 16px;
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 22px;
}

.alert-error {
    background: rgba(231,76,60,0.12);
    border: 1px solid rgba(231,76,60,0.4);
    color: #ff8f80;
}

.alert-icon {
    font-size: 1.1rem;
    flex-shrink: 0;
}

/* ========== SUCCESS CARD ========== */
.success-card {
    text-align: center;
}

.success-badge {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, var(--gold) 0%, var(--gold-dark) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 16px;
    box-shadow: 0 4px 20px rgba(212,175,55,0.4);
}

.checkmark {
    font-size: 2rem;
    color: var(--navy-dark);
    font-weight: 900;
    line-height: 1;
}

.success-title {
    font-family: 'Cinzel', serif;
    font-size: 1.5rem;
    color: var(--gold);
    margin-bottom: 8px;
}

.success-msg {
    color: var(--text-muted);
    font-size: 0.875rem;
    margin-bottom: 24px;
}

.reg-details {
    background: rgba(0,0,0,0.25);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 20px;
    margin-bottom: 24px;
    text-align: left;
}

.reg-number-display {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding-bottom: 16px;
    margin-bottom: 16px;
    border-bottom: 1px solid var(--border);
}

.reg-label {
    font-size: 0.7rem;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--text-muted);
    margin-bottom: 6px;
}

.reg-value {
    font-family: 'Cinzel', serif;
    font-size: 1.6rem;
    color: var(--gold);
    font-weight: 700;
    letter-spacing: 2px;
    word-break: break-all;
}

.detail-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 14px;
}

.detail-item {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.d-label {
    font-size: 0.68rem;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    color: var(--text-muted);
}

.d-value {
    font-size: 0.9rem;
    color: var(--white);
    font-weight: 400;
    word-break: break-word;
}

/* ========== QR SECTION ========== */
.qr-section {
    margin: 24px 0;
}

.qr-label {
    font-size: 0.8rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1.5px;
    margin-bottom: 14px;
}

.qr-wrapper {
    display: flex;
    justify-content: center;
    margin-bottom: 16px;
}

.qr-image {
    width: 180px;
    height: 180px;
    border-radius: var(--radius-sm);
    border: 3px solid var(--gold);
    box-shadow: 0 4px 20px rgba(212,175,55,0.25);
}

/* ========== FOOTER ========== */
.site-footer {
    background: linear-gradient(180deg, rgba(7,28,53,0.9) 0%, rgba(4,16,32,0.98) 100%);
    border-top: 2px solid var(--gold);
    padding: 28px 20px;
    text-align: center;
    position: relative;
    z-index: 10;
    margin-top: auto;
}

.footer-inner {
    max-width: 600px;
    margin: 0 auto;
}

.footer-crest {
    width: 42px;
    height: 42px;
    object-fit: contain;
    opacity: 0.7;
    margin-bottom: 10px;
}

.footer-college {
    font-family: 'Cinzel', serif;
    font-size: 0.9rem;
    color: var(--gold);
    margin-bottom: 3px;
}

.footer-event {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-bottom: 14px;
}

.footer-divider {
    width: 60px;
    height: 1px;
    background: var(--gold);
    margin: 0 auto 14px;
    opacity: 0.4;
}

.footer-dev {
    font-size: 0.82rem;
    color: var(--text-muted);
    margin-bottom: 6px;
}

.footer-dev strong {
    color: var(--gold-light);
}

.batch-badge {
    display: inline-block;
    background: rgba(212,175,55,0.15);
    border: 1px solid rgba(212,175,55,0.3);
    color: var(--gold);
    font-size: 0.68rem;
    padding: 2px 8px;
    border-radius: 20px;
    letter-spacing: 1px;
    margin-left: 4px;
    vertical-align: middle;
}

.footer-copy {
    font-size: 0.72rem;
    color: rgba(255,255,255,0.2);
    margin-bottom: 10px;
}

.footer-admin-link {
    font-size: 0.72rem;
    color: rgba(212,175,55,0.4);
    text-decoration: none;
    letter-spacing: 1px;
    transition: color 0.2s;
}

.footer-admin-link:hover {
    color: var(--gold);
}

/* ========== RESPONSIVE ========== */
@media (max-width: 600px) {
    .header-inner {
        gap: 14px;
    }

    .crest-logo {
        width: 55px;
        height: 55px;
    }

    .form-card, .success-card {
        padding: 24px 18px;
    }

    .vehicle-type-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 10px;
    }

    .type-icon {
        font-size: 1.5rem;
    }

    .math-captcha-row {
        flex-direction: column;
        align-items: stretch;
    }

    .math-question {
        justify-content: center;
    }

    .detail-grid {
        grid-template-columns: 1fr;
        gap: 12px;
    }

    .btn-submit {
        font-size: 0.9rem;
    }

    .qr-image {
        width: 150px;
        height: 150px;
    }
}

@media (max-width: 360px) {
    .college-name {
        font-size: 1.1rem;
    }

    .event-title {
        font-size: 0.78rem;
    }
}