/* ============================================
   Passwordless Login System - Global Styles
   ============================================ */

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f8f9fa;
}

/* ============================================
   Container & Layout
   ============================================ */

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ============================================
   Navbar
   ============================================ */

.navbar {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 1rem 0;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    margin-bottom: 2rem;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-brand a {
    color: white;
    text-decoration: none;
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: 0.5px;
}

.nav-menu {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.nav-item {
    color: white;
    text-decoration: none;
    transition: opacity 0.3s ease;
}

.nav-item:hover {
    opacity: 0.8;
}

.btn-logout {
    background: rgba(255, 255, 255, 0.2);
    padding: 0.5rem 1rem;
    border-radius: 5px;
    transition: background 0.3s ease;
}

.btn-logout:hover {
    background: rgba(255, 255, 255, 0.3);
}

/* ============================================
   Buttons
   ============================================ */

.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 5px;
    text-decoration: none;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 600;
    transition: all 0.3s ease;
    text-align: center;
}

.btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
}

.btn-secondary {
    background: #6c757d;
    color: white;
}

.btn-secondary:hover {
    background: #5a6268;
    transform: translateY(-2px);
}

.btn-danger {
    background: #dc3545;
    color: white;
}

.btn-danger:hover {
    background: #c82333;
    transform: translateY(-2px);
}

.btn-block {
    width: 100%;
    display: block;
}

/* ============================================
   Forms
   ============================================ */

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: #333;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
    font-family: inherit;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

/* ============================================
   Alerts
   ============================================ */

.alert {
    padding: 1rem 1.5rem;
    border-radius: 5px;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 1rem;
}

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

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

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

.alert a {
    color: inherit;
    text-decoration: underline;
    font-weight: 600;
    display: contents;
}

/* ============================================
   Authentication Pages
   ============================================ */

.auth-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: calc(100vh - 300px);
    padding: 2rem 0;
}

.auth-box {
    background: white;
    padding: 2.5rem;
    border-radius: 10px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    width: 100%;
    max-width: 400px;
}

.auth-box h1 {
    color: #333;
    margin-bottom: 0.5rem;
    font-size: 1.75rem;
}

.auth-subtitle {
    color: #666;
    margin-bottom: 2rem;
    font-size: 0.95rem;
}

.auth-form {
    margin-bottom: 1.5rem;
}

.auth-footer {
    text-align: center;
    color: #666;
    font-size: 0.95rem;
}

.auth-footer a {
    color: #667eea;
    text-decoration: none;
    font-weight: 600;
}

.auth-footer a:hover {
    text-decoration: underline;
}

/* ============================================
   Verification Container
   ============================================ */

.verify-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: calc(100vh - 300px);
    padding: 2rem 0;
}

.verify-box {
    background: white;
    padding: 2.5rem;
    border-radius: 10px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    width: 100%;
    max-width: 500px;
    text-align: center;
}

.verify-box h1 {
    color: #333;
    margin-bottom: 1.5rem;
}

.action-buttons {
    margin-top: 2rem;
    display: flex;
    gap: 1rem;
    justify-content: center;
}

/* ============================================
   Dashboard
   ============================================ */

.dashboard-container {
    padding: 2rem 0;
}

.dashboard-header {
    text-align: center;
    margin-bottom: 3rem;
}

.dashboard-header h1 {
    font-size: 2rem;
    color: #333;
    margin-bottom: 0.5rem;
}

.dashboard-subtitle {
    color: #666;
    font-size: 1.1rem;
}

.dashboard-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 2rem;
}

.info-card,
.action-card {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

.info-card h2,
.action-card h2 {
    color: #333;
    margin-bottom: 1.5rem;
    font-size: 1.25rem;
}

.info-row {
    display: flex;
    justify-content: space-between;
    padding: 0.75rem 0;
    border-bottom: 1px solid #f0f0f0;
}

.info-row:last-child {
    border-bottom: none;
}

.info-label {
    font-weight: 600;
    color: #666;
}

.info-value {
    color: #333;
    word-break: break-word;
}

/* ============================================
   Table
   ============================================ */

.table-responsive {
    overflow-x: auto;
}

.history-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.95rem;
}

.history-table thead {
    background: #f8f9fa;
}

.history-table th {
    padding: 1rem;
    text-align: left;
    font-weight: 600;
    color: #333;
    border-bottom: 2px solid #ddd;
}

.history-table td {
    padding: 1rem;
    border-bottom: 1px solid #eee;
}

.history-table tbody tr:hover {
    background: #f8f9fa;
}

.truncate {
    max-width: 300px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* ============================================
   Home Page
   ============================================ */

.content-wrapper {
    padding: 2rem 0;
}

.hero-section {
    text-align: center;
    margin-bottom: 4rem;
    padding: 3rem 2rem;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border-radius: 10px;
}

.hero-section h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.hero-section p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

.cta-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.cta-buttons .btn {
    min-width: 150px;
}

/* ============================================
   Features Section
   ============================================ */

.features-section {
    margin-bottom: 4rem;
}

.features-section h2 {
    text-align: center;
    margin-bottom: 2rem;
    font-size: 1.75rem;
    color: #333;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.feature-card {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
}

.feature-card h3 {
    color: #333;
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

.feature-card p {
    color: #666;
    line-height: 1.6;
}

/* ============================================
   Info Section
   ============================================ */

.info-section {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

.info-section h2 {
    color: #333;
    margin-bottom: 1.5rem;
}

.steps-list {
    list-style: none;
    counter-reset: steps-counter;
    max-width: 600px;
}

.steps-list li {
    counter-increment: steps-counter;
    margin-bottom: 1rem;
    padding-left: 3rem;
    position: relative;
    color: #666;
    line-height: 1.8;
}

.steps-list li::before {
    content: counter(steps-counter);
    position: absolute;
    left: 0;
    top: 0;
    width: 2rem;
    height: 2rem;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
}

/* ============================================
   Footer
   ============================================ */

.footer {
    background: #2c3e50;
    color: white;
    text-align: center;
    padding: 2rem 0;
    margin-top: 4rem;
}

.footer p {
    margin: 0;
}

/* ============================================
   Responsive Design
   ============================================ */

@media (max-width: 768px) {
    .nav-menu {
        gap: 1rem;
        flex-wrap: wrap;
    }

    .hero-section h1 {
        font-size: 1.75rem;
    }

    .hero-section p {
        font-size: 1rem;
    }

    .cta-buttons {
        flex-direction: column;
    }

    .cta-buttons .btn {
        width: 100%;
    }

    .dashboard-content {
        grid-template-columns: 1fr;
    }

    .auth-box {
        padding: 1.5rem;
    }

    .info-row {
        flex-direction: column;
        gap: 0.5rem;
    }

    .truncate {
        max-width: 100%;
    }

    .history-table {
        font-size: 0.85rem;
    }

    .history-table th,
    .history-table td {
        padding: 0.75rem;
    }
}

@media (max-width: 480px) {
    .navbar .container {
        flex-direction: column;
        gap: 1rem;
    }

    .nav-menu {
        width: 100%;
        justify-content: space-around;
    }

    .hero-section {
        padding: 2rem 1rem;
    }

    .hero-section h1 {
        font-size: 1.5rem;
    }

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

    .cta-buttons {
        gap: 0.5rem;
    }
}

/* ============================================
   Print Styles
   ============================================ */

@media print {
    .navbar,
    .footer,
    .btn {
        display: none;
    }

    body {
        background: white;
    }

    .container {
        max-width: 100%;
    }
}