:root {
    --primary-color: #F5A623;
    --primary-hover: #D48E1A;
    --danger-color: #dc2626;
    --success-color: #16a34a;
    --warning-color: #d97706;
    --dark-bg: #1f2937;
    --light-bg: #f3f4f6;
    --border-color: #d1d5db;
    --text-color: #111827;
    --text-light: #6b7280;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background: linear-gradient(135deg, #374151 0%, #1f2937 100%);
    min-height: 100vh;
    padding: 20px;
}

.container {
    max-width: 900px;
    margin: 0 auto;
    background: white;
    border-radius: 10px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
    padding: 40px;
}

.header-logo {
    text-align: center;
    margin-bottom: 10px;
}

.header-logo img {
    max-height: 40px;
    width: auto;
}

h1, h2, h3 {
    color: var(--dark-bg);
    margin-bottom: 20px;
}

h1 {
    font-size: 2.5em;
    text-align: center;
    margin-bottom: 10px;
}

.subtitle {
    text-align: center;
    color: var(--text-light);
    margin-bottom: 40px;
}

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

label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--text-color);
}

input[type="text"],
input[type="password"],
input[type="number"],
input[type="tel"],
input[type="email"],
textarea,
select {
    width: 100%;
    padding: 12px;
    border: 2px solid var(--border-color);
    border-radius: 5px;
    font-size: 16px;
    transition: border-color 0.3s;
}

input:focus,
textarea:focus,
select:focus {
    outline: none;
    border-color: var(--primary-color);
}

textarea {
    min-height: 200px;
    resize: vertical;
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
}

.checkbox-group {
    display: flex;
    align-items: center;
    gap: 10px;
}

.checkbox-group input[type="checkbox"] {
    width: auto;
    margin: 0;
}

button, .btn {
    padding: 12px 30px;
    border: none;
    border-radius: 5px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    display: inline-block;
    text-decoration: none;
    text-align: center;
}

.btn-primary {
    background: var(--primary-color);
    color: white;
}

.btn-primary:hover {
    background: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(245, 166, 35, 0.3);
}

.btn-success {
    background: var(--success-color);
    color: white;
}

.btn-danger {
    background: var(--danger-color);
    color: white;
}

.btn-danger:hover {
    background: #b91c1c;
}

.btn-block {
    width: 100%;
}

.alert {
    padding: 15px;
    border-radius: 5px;
    margin-bottom: 20px;
}

.alert-success {
    background: #d4edda;
    border: 1px solid #c3e6cb;
    color: #155724;
}

.alert-danger {
    background: #f8d7da;
    border: 1px solid #f5c6cb;
    color: #721c24;
}

.alert-warning {
    background: #fff3cd;
    border: 1px solid #ffeeba;
    color: #856404;
}

.alert-info {
    background: #d1ecf1;
    border: 1px solid #bee5eb;
    color: #0c5460;
}

.options-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 15px;
    margin-bottom: 20px;
}

.result-box {
    background: var(--light-bg);
    padding: 20px;
    border-radius: 5px;
    border: 2px solid var(--border-color);
    margin-top: 20px;
}

.copy-input {
    display: flex;
    gap: 10px;
}

.copy-input input {
    flex: 1;
}

.copy-input button {
    flex-shrink: 0;
}

.secret-meta {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
    margin-bottom: 20px;
    padding: 15px;
    background: var(--light-bg);
    border-radius: 5px;
}

.secret-meta-item {
    display: flex;
    flex-direction: column;
}

.secret-meta-label {
    font-size: 0.85em;
    color: var(--text-light);
    margin-bottom: 5px;
}

.secret-meta-value {
    font-weight: 600;
    color: var(--text-color);
}

#generatedPasswordBox code {
    font-size: 1.1em;
    font-weight: bold;
    letter-spacing: 1px;
    user-select: all;
}

.hidden {
    display: none !important;
}

.loading {
    text-align: center;
    padding: 40px;
}

.spinner {
    border: 4px solid var(--light-bg);
    border-top: 4px solid var(--primary-color);
    border-radius: 50%;
    width: 50px;
    height: 50px;
    animation: spin 1s linear infinite;
    margin: 0 auto;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.admin-nav {
    display: flex;
    gap: 10px;
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 2px solid var(--border-color);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.stat-card {
    background: var(--light-bg);
    padding: 20px;
    border-radius: 5px;
    text-align: center;
}

.stat-value {
    font-size: 2.5em;
    font-weight: bold;
    color: var(--primary-color);
}

.stat-label {
    color: var(--text-light);
    margin-top: 5px;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 20px;
}

th, td {
    padding: 12px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

th {
    background: var(--dark-bg);
    color: white;
    font-weight: 600;
}

tr:hover {
    background: var(--light-bg);
}

.badge {
    display: inline-block;
    padding: 4px 10px;
    border-radius: 3px;
    font-size: 0.85em;
    font-weight: 600;
}

.badge-success {
    background: var(--success-color);
    color: white;
}

.badge-danger {
    background: var(--danger-color);
    color: white;
}

.badge-warning {
    background: var(--warning-color);
    color: white;
}

.pqc-status-container {
    margin-bottom: 20px;
}

.pqc-status {
    padding: 15px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.95em;
}

.pqc-status.enabled {
    background: linear-gradient(135deg, #374151 0%, #1f2937 100%);
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.3);
}

.pqc-status.disabled {
    background: var(--light-bg);
    color: var(--text-color);
    border: 2px solid var(--border-color);
}

.pqc-icon {
    font-size: 1.5em;
}

.pqc-text {
    font-weight: 600;
    font-size: 1.1em;
}

.pqc-description {
    font-size: 0.9em;
    opacity: 0.9;
}

.footer {
    text-align: center;
    margin-top: 30px;
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
}

.footer img {
    max-height: 28px;
    width: auto;
    opacity: 0.6;
    transition: opacity 0.3s;
}

.footer img:hover {
    opacity: 1;
}

@media (max-width: 768px) {
    .container {
        padding: 20px;
    }

    h1 {
        font-size: 2em;
    }

    .options-grid {
        grid-template-columns: 1fr;
    }

    .stats-grid {
        grid-template-columns: 1fr;
    }

    table {
        font-size: 0.9em;
    }

    th, td {
        padding: 8px;
    }

    .pqc-status {
        flex-direction: column;
        text-align: center;
    }
}

/* Session expiry overlay */
.session-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(31, 41, 55, 0.7);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.session-modal {
    background: white;
    border-radius: 10px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
    padding: 40px;
    max-width: 420px;
    width: 90%;
}

.session-modal h2 {
    text-align: center;
    margin-bottom: 10px;
}

.session-modal .subtitle {
    margin-bottom: 20px;
}