/* Base styles */
:root {
    --primary-color: #4a86e8;
    --secondary-color: #6aa84f;
    --error-color: #cc0000;
    --success-color: #6aa84f;
    --text-color: #333;
    --bg-color: #f9f9f9;
    --bg-secondary: white;
    --light-gray: #f5f5f5;
    --border-color: #ddd;
    --hover-color: #f8f9fa;
    --shadow: rgba(0, 0, 0, 0.1);
    
    /* Safari-specific: Set initial color scheme */
    color-scheme: light;
}

/* Dark mode styles */
@media (prefers-color-scheme: dark) {
    :root {
        --primary-color: #5b9bd5;
        --secondary-color: #7ec16b;
        --error-color: #ff6b6b;
        --success-color: #7ec16b;
        --text-color: #e0e0e0;
        --bg-color: #1a1a1a;
        --bg-secondary: #2d2d2d;
        --light-gray: #3a3a3a;
        --border-color: #444;
        --hover-color: #3a3a3a;
        --shadow: rgba(0, 0, 0, 0.3);
        
        /* Safari-specific: Set dark color scheme */
        color-scheme: dark;
    }
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--bg-color);
    transition: background-color 0.3s ease, color 0.3s ease;
}

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

/* Typography */
h1, h2, h3 {
    margin-bottom: 20px;
    line-height: 1.2;
}

h1 {
    font-size: 2.5rem;
    color: var(--primary-color);
}

h2 {
    font-size: 1.8rem;
    border-bottom: 2px solid var(--light-gray);
    padding-bottom: 10px;
    margin-bottom: 20px;
}

h3 {
    font-size: 1.3rem;
    margin-bottom: 15px;
}

/* Header and Navigation */
header {
    padding: 20px 0;
    margin-bottom: 30px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    flex-wrap: wrap;
}

.header-left {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.header-right {
    display: flex;
    align-items: center;
    gap: 15px;
}

/* Dark mode toggle */
.theme-toggle {
    background: none;
    border: 1px solid var(--border-color);
    color: var(--text-color);
    padding: 8px 12px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.9rem;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 5px;
}

.theme-toggle:hover {
    background-color: var(--hover-color);
    border-color: var(--primary-color);
}

/* Force dark mode when data-theme="dark" */
[data-theme="dark"] {
    --primary-color: #5b9bd5;
    --secondary-color: #7ec16b;
    --error-color: #ff6b6b;
    --success-color: #7ec16b;
    --text-color: #e0e0e0;
    --bg-color: #1a1a1a;
    --bg-secondary: #2d2d2d;
    --light-gray: #3a3a3a;
    --border-color: #444;
    --hover-color: #3a3a3a;
    --shadow: rgba(0, 0, 0, 0.3);
    
    /* Safari-specific: Force dark color scheme */
    color-scheme: dark;
}

/* Force light mode when data-theme="light" */
[data-theme="light"] {
    --primary-color: #4a86e8;
    --secondary-color: #6aa84f;
    --error-color: #cc0000;
    --success-color: #6aa84f;
    --text-color: #333;
    --bg-color: #f9f9f9;
    --bg-secondary: white;
    --light-gray: #f5f5f5;
    --border-color: #ddd;
    --hover-color: #f8f9fa;
    --shadow: rgba(0, 0, 0, 0.1);
    
    /* Safari-specific: Force light color scheme */
    color-scheme: light;
}

nav ul {
    list-style: none;
    display: flex;
    gap: 20px;
}

nav a {
    text-decoration: none;
    color: var(--text-color);
    font-weight: 500;
    padding: 5px 10px;
    border-radius: 4px;
    transition: background-color 0.3s;
}

nav a:hover, nav a.active {
    background-color: var(--light-gray);
    color: var(--primary-color);
}

nav a.active {
    font-weight: bold;
}

/* Main content */
main {
    padding: 20px 0;
}

section {
    background-color: var(--bg-secondary);
    border-radius: 8px;
    box-shadow: 0 2px 4px var(--shadow);
    padding: 25px;
    margin-bottom: 30px;
    transition: background-color 0.3s ease;
}

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

label {
    display: block;
    margin-bottom: 5px;
    font-weight: 500;
}

input[type="text"],
input[type="email"],
input[type="number"],
input[type="date"],
input[type="time"] {
    width: 100%;
    padding: 10px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 1rem;
    background-color: var(--bg-secondary);
    color: var(--text-color);
    transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease;
}

input[type="text"]:focus,
input[type="email"]:focus,
input[type="number"]:focus,
input[type="date"]:focus,
input[type="time"]:focus {
    outline: none;
    border-color: var(--primary-color);
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 10px 20px;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 500;
    text-decoration: none;
    transition: background-color 0.3s;
}

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

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

.btn.link {
    background-color: transparent;
    color: var(--primary-color);
    text-decoration: underline;
    padding: 5px;
}

.btn.small {
    padding: 5px 10px;
    font-size: 0.9rem;
}

.btn:hover {
    opacity: 0.9;
}

/* Tables */
.data-table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 20px;
}

.data-table th,
.data-table td {
    padding: 12px 15px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.data-table th {
    background-color: var(--light-gray);
    font-weight: bold;
}

.data-table tbody tr:hover {
    background-color: var(--hover-color);
}

/* Leaderboard specific */
.leaderboard .rank {
    font-weight: bold;
    text-align: center;
}

.leaderboard .count {
    text-align: center;
}

/* QR code */
.qr-code-container {
    text-align: center;
    margin: 30px 0;
}

.qr-code {
    max-width: 300px;
    margin: 20px 0;
    border: 1px solid var(--border-color);
    padding: 10px;
    background-color: var(--bg-secondary);
    transition: background-color 0.3s ease;
}

/* Status messages */
.success {
    color: var(--success-color);
    background-color: rgba(106, 168, 79, 0.1);
    padding: 15px;
    border-radius: 4px;
    margin-bottom: 20px;
}

.error {
    color: var(--error-color);
    background-color: rgba(204, 0, 0, 0.1);
    padding: 15px;
    border-radius: 4px;
    margin-bottom: 20px;
}

/* QR reader */
#qr-reader {
    width: 100%;
    max-width: 500px;
    margin: 0 auto;
}

/* Location inputs */
.location-inputs {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-top: 10px;
}

/* Utility classes */
.hidden {
    display: none;
}

/* Check-in form styles */
.check-in-section {
    max-width: 500px;
    margin: 0 auto;
}

.meeting-info {
    background-color: var(--light-gray);
    padding: 15px;
    border-radius: 4px;
    margin-bottom: 25px;
}

.check-in-form {
    background-color: var(--bg-secondary);
    padding: 25px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.check-in-form .btn {
    width: 100%;
    margin-top: 10px;
}

/* QR Display page styles */
.qr-display-section {
    max-width: 800px;
    margin: 0 auto;
}

.meeting-details {
    background-color: var(--light-gray);
    padding: 20px;
    border-radius: 8px;
    margin-bottom: 30px;
}

.detail-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 15px;
}

.detail-item {
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.detail-item strong {
    color: var(--primary-color);
    font-size: 0.9rem;
}

.qr-info {
    margin: 15px 0;
    font-size: 0.9rem;
    color: #666;
}

.actions {
    display: flex;
    gap: 15px;
    justify-content: center;
    flex-wrap: wrap;
    margin-top: 25px;
}

/* Footer */
footer {
    text-align: center;
    padding: 20px 0;
    margin-top: 50px;
    color: #666;
    border-top: 1px solid var(--border-color);
}

/* Media queries */
@media (max-width: 768px) {
    h1 {
        font-size: 2rem;
    }
    
    h2 {
        font-size: 1.5rem;
    }
    
    .location-inputs {
        grid-template-columns: 1fr;
        gap: 10px;
    }
    
    .header-content {
        flex-direction: column;
        gap: 15px;
        align-items: flex-start;
    }
    
    .header-right {
        align-self: flex-end;
    }
    
    nav ul {
        flex-wrap: wrap;
    }
}

/* Section header with download button */
.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
    gap: 1rem;
}

/* Download section styling */
.download-section {
    display: flex;
    align-items: center;
}

.download-btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    background: var(--primary-color);
    color: white;
    text-decoration: none;
    border-radius: 8px;
    font-weight: 500;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    font-size: 0.9rem;
}

.download-btn:hover {
    background: #3a73c7;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.download-btn:active {
    transform: translateY(0);
}

/* Dark mode support for download button */
:root[data-theme="dark"] .download-btn {
    background: var(--primary-color);
}

:root[data-theme="dark"] .download-btn:hover {
    background: #6bb3ff;
}

/* Responsive adjustments for section header */
@media (max-width: 768px) {
    .section-header {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .download-section {
        align-self: flex-end;
    }
}

/* Authentication styles */
.logout-btn {
    background: var(--error-color);
    color: white;
    padding: 8px 16px;
    border: none;
    border-radius: 4px;
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: background-color 0.3s ease;
    margin-right: 10px;
}

.logout-btn:hover {
    background: #d32f2f;
}

/* Login page styles */
.login-section {
    padding: 40px 0;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 60vh;
}

.login-container {
    background: var(--bg-secondary);
    padding: 40px;
    border-radius: 8px;
    box-shadow: 0 4px 12px var(--shadow);
    max-width: 400px;
    width: 100%;
    text-align: center;
}

.login-container h2 {
    color: var(--primary-color);
    margin-bottom: 10px;
}

.login-container p {
    color: var(--text-color);
    margin-bottom: 30px;
    opacity: 0.8;
}

.login-form {
    text-align: left;
}

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

.login-form label {
    display: block;
    margin-bottom: 5px;
    font-weight: 500;
    color: var(--text-color);
}

.login-form input[type="password"] {
    width: 100%;
    padding: 12px;
    border: 2px solid var(--border-color);
    border-radius: 4px;
    font-size: 16px;
    background: var(--bg-color);
    color: var(--text-color);
    transition: border-color 0.3s ease;
}

.login-form input[type="password"]:focus {
    outline: none;
    border-color: var(--primary-color);
}

.login-form .btn {
    width: 100%;
    padding: 12px;
    margin-top: 10px;
}

.login-help {
    margin-top: 30px;
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
}

.login-help p {
    font-size: 14px;
    margin-bottom: 10px;
}

.login-help code {
    background: var(--light-gray);
    padding: 2px 6px;
    border-radius: 3px;
    font-family: 'Courier New', monospace;
    color: var(--primary-color);
}

.login-help small {
    opacity: 0.7;
}

/* Flash messages */
.flash-messages {
    margin-bottom: 20px;
}

.flash-message {
    padding: 12px;
    border-radius: 4px;
    margin-bottom: 10px;
    font-weight: 500;
}

.flash-success {
    background: rgba(106, 168, 79, 0.1);
    color: var(--success-color);
    border: 1px solid var(--success-color);
}

.flash-error {
    background: rgba(204, 0, 0, 0.1);
    color: var(--error-color);
    border: 1px solid var(--error-color);
}

/* Dark mode support for auth elements */
:root[data-theme="dark"] .logout-btn {
    background: #ff5252;
}

:root[data-theme="dark"] .logout-btn:hover {
    background: #ff1744;
}