:root {
    --negro: #0A0A0A;
    --verde: #CBFF0D;
    --blanco: #F5F5F2;
    --purpura: #9BB1FF;
    --gris: #1A1A1A;
    --gris-oscuro: #111111;
}

.hidden {
    display: none !important;
}

/* Login Overlay */
.login-overlay {
    position: fixed;
    inset: 0;
    background: var(--negro);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.login-overlay.show {
    display: flex;
}

.login-box {
    background: var(--gris);
    border: 1px solid rgba(203, 255, 13, 0.1);
    border-radius: 16px;
    padding: 40px;
    width: 100%;
    max-width: 400px;
    margin: 20px;
}

.login-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 24px;
}

.brand-logo {
    height: 40px;
    width: auto;
}

.brand-icon {
    font-size: 28px;
}

.brand-text {
    font-family: 'Bebas Neue', sans-serif;
    font-size: 24px;
    color: var(--blanco);
    letter-spacing: 0.05em;
}

.brand-text span {
    color: var(--verde);
}

.login-box h2 {
    font-family: 'Poppins', sans-serif;
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--blanco);
    margin-bottom: 24px;
    text-align: center;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-family: 'Poppins', sans-serif;
    font-size: 0.85rem;
    color: rgba(245, 245, 242, 0.7);
    margin-bottom: 8px;
}

.form-group input {
    width: 100%;
    padding: 14px 16px;
    background: var(--negro);
    border: 1px solid rgba(245, 245, 242, 0.1);
    border-radius: 8px;
    color: var(--blanco);
    font-family: 'Poppins', sans-serif;
    font-size: 1rem;
    transition: border-color 0.2s;
    box-sizing: border-box;
}

.form-group input:focus {
    outline: none;
    border-color: var(--verde);
}

.form-group input::placeholder {
    color: rgba(245, 245, 242, 0.3);
}

.login-btn {
    width: 100%;
    padding: 14px;
    background: var(--verde);
    color: var(--negro);
    border: 2px solid var(--negro);
    border-radius: 8px;
    font-family: 'Poppins', sans-serif;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
}

.login-btn:hover {
    background: #d9ff30;
    transform: translateY(-1px);
}

.login-error {
    color: #ff6b6b;
    text-align: center;
    font-size: 0.9rem;
    margin-top: 16px;
    min-height: 20px;
}

.login-footer {
    text-align: center;
    margin-top: 24px;
    padding-top: 24px;
    border-top: 1px solid rgba(245, 245, 242, 0.1);
}

.login-footer a {
    color: rgba(245, 245, 242, 0.6);
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.2s;
}

.login-footer a:hover {
    color: var(--verde);
}

/* Success Modal */
.success-box {
    text-align: center;
}

.success-icon {
    width: 80px;
    height: 80px;
    background: var(--verde);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 40px;
    color: var(--negro);
    margin: 0 auto 24px;
}

.success-box h2 {
    margin-bottom: 8px;
}

.success-brand {
    color: rgba(245, 245, 242, 0.7);
    font-family: 'Poppins', sans-serif;
    margin-bottom: 32px;
}

.success-box .scan-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    width: 100%;
    margin-bottom: 16px;
}

.logout-link {
    background: none;
    border: none;
    color: rgba(245, 245, 242, 0.5);
    font-family: 'Poppins', sans-serif;
    font-size: 0.9rem;
    cursor: pointer;
    transition: color 0.2s;
}

.logout-link:hover {
    color: var(--verde);
}

/* App Container */
.app-container {
    min-height: 100vh;
    background: var(--negro);
}

/* Nav */
.marca-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 24px;
    background: var(--gris);
    border-bottom: 1px solid rgba(203, 255, 13, 0.1);
}

.marca-nav .nav-logo {
    height: 36px;
}

.marca-nav .nav-brand {
    display: flex;
    align-items: center;
    gap: 16px;
}

.marca-nav .brand-info {
    display: flex;
    flex-direction: column;
}

.marca-nav .brand-nombre {
    font-family: 'Poppins', sans-serif;
    font-weight: 600;
    color: var(--blanco);
    font-size: 1.1rem;
}

.marca-nav .brand-stand {
    font-family: 'Space Mono', monospace;
    font-size: 0.8rem;
    color: var(--verde);
}

.logout-btn {
    padding: 10px 20px;
    background: transparent;
    border: 1px solid rgba(245, 245, 242, 0.2);
    border-radius: 6px;
    color: var(--blanco);
    font-family: 'Poppins', sans-serif;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.2s;
}

.logout-btn:hover {
    background: rgba(245, 245, 242, 0.1);
    border-color: rgba(245, 245, 242, 0.3);
}

/* Scanner Main */
.scanner-main {
    padding: 90px 24px 24px;
    max-width: 600px;
    margin: 0 auto;
}

.scanner-container {
    background: var(--gris);
    border-radius: 16px;
    padding: 24px;
    margin-bottom: 24px;
}

.scanner-header {
    text-align: center;
    margin-bottom: 24px;
}

.scanner-header h1 {
    font-family: 'Bebas Neue', sans-serif;
    font-size: 2rem;
    color: var(--blanco);
    letter-spacing: 0.05em;
    margin-bottom: 8px;
}

.scanner-header p {
    font-family: 'Poppins', sans-serif;
    color: rgba(245, 245, 242, 0.6);
    font-size: 0.95rem;
}

/* QR Reader */
.qr-reader {
    width: 100%;
    border-radius: 12px;
    overflow: hidden;
    background: var(--negro);
    min-height: 300px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.qr-reader video {
    width: 100% !important;
    border-radius: 12px;
}

.qr-reader img {
    max-width: 100%;
}

/* QR Result */
.qr-result {
    background: rgba(203, 255, 13, 0.1);
    border: 2px solid var(--verde);
    border-radius: 12px;
    padding: 24px;
    margin-top: 24px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
    animation: slideUp 0.3s ease;
}

.qr-invalid {
    background: rgba(255, 107, 107, 0.1);
    border: 2px solid #ff6b6b;
}

.qr-invalid .result-label {
    color: #ff6b6b;
    font-weight: 600;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.qr-result .result-icon {
    width: 64px;
    height: 64px;
    background: var(--verde);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    color: var(--negro);
}

.result-icon-error {
    background: #ff6b6b !important;
    color: var(--negro) !important;
}

.qr-result .result-content {
    text-align: center;
}

.qr-result .result-label {
    display: block;
    font-family: 'Poppins', sans-serif;
    font-size: 0.85rem;
    color: rgba(245, 245, 242, 0.6);
    margin-bottom: 8px;
}

.qr-result .result-value {
    font-family: 'Space Mono', monospace;
    font-size: 1.5rem;
    color: var(--blanco);
    word-break: break-all;
}

.visitor-info {
    text-align: center;
}

.visitor-info .info-row {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    margin: 8px 0;
}

.visitor-info .info-label {
    font-family: 'Poppins', sans-serif;
    font-size: 0.9rem;
    color: rgba(245, 245, 242, 0.6);
}

.visitor-info .info-value {
    font-family: 'Poppins', sans-serif;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--blanco);
}

.visitor-actions {
    width: 100%;
    display: flex;
    flex-direction: column;
    gap: 12px;
    padding-top: 16px;
    border-top: 1px solid rgba(203, 255, 13, 0.2);
}

.visitor-actions .action-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.visitor-actions .action-group label {
    font-family: 'Poppins', sans-serif;
    font-size: 0.85rem;
    color: rgba(245, 245, 242, 0.7);
}

.visitor-actions .action-group input {
    padding: 12px 14px;
    background: var(--negro);
    border: 1px solid rgba(245, 245, 242, 0.15);
    border-radius: 8px;
    color: var(--blanco);
    font-family: 'Poppins', sans-serif;
    font-size: 0.95rem;
}

.visitor-actions .action-group input:focus {
    outline: none;
    border-color: var(--verde);
}

.visitor-actions .action-group input::placeholder {
    color: rgba(245, 245, 242, 0.3);
}

.visitor-actions .accept-btn {
    padding: 14px;
    background: var(--verde);
    color: var(--negro);
    border: none;
    border-radius: 8px;
    font-family: 'Poppins', sans-serif;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    margin-top: 4px;
}

.visitor-actions .accept-btn:hover {
    background: #d9ff30;
}

.scan-again-btn {
    padding: 12px 24px;
    background: transparent;
    border: 1px solid var(--verde);
    border-radius: 8px;
    color: var(--verde);
    font-family: 'Poppins', sans-serif;
    font-size: 0.95rem;
    cursor: pointer;
    transition: all 0.2s;
}

.scan-again-btn:hover {
    background: var(--verde);
    color: var(--negro);
}

/* Scanner Controls */
.scanner-controls {
    display: flex;
    justify-content: center;
    margin-top: 24px;
}

.scan-btn {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 14px 28px;
    background: var(--verde);
    color: var(--negro);
    border: 2px solid var(--negro);
    border-radius: 8px;
    font-family: 'Poppins', sans-serif;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
}

.scan-btn:hover {
    background: #d9ff30;
    transform: translateY(-1px);
}

/* Recent Scans */
.recent-scans {
    background: var(--gris);
    border-radius: 16px;
    padding: 24px;
}

.recent-scans h3 {
    font-family: 'Poppins', sans-serif;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--blanco);
    margin-bottom: 16px;
}

.scan-history {
    list-style: none;
    padding: 0;
    margin: 0;
}

.scan-history li {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 0;
    border-bottom: 1px solid rgba(245, 245, 242, 0.1);
    font-family: 'Space Mono', monospace;
    font-size: 0.9rem;
    color: var(--blanco);
}

.scan-history li:last-child {
    border-bottom: none;
}

.scan-history .scan-time {
    font-size: 0.75rem;
    color: rgba(245, 245, 242, 0.5);
}

.scan-history .empty-history {
    text-align: center;
    color: rgba(245, 245, 242, 0.4);
    font-family: 'Poppins', sans-serif;
    padding: 24px;
}

/* Responsive */
@media (max-width: 480px) {
    .login-box {
        padding: 24px;
    }
    
    .scanner-container {
        padding: 16px;
    }
    
    .qr-result .result-value {
        font-size: 1.2rem;
    }
}