/* LARK Labs Common Styles - Shared across all apps */

/* Reset and Base 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;
}

/* Common Container Styles */
.lark-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

/* Header Styles */
.lark-header {
    background: linear-gradient(135deg, #2c3e50, #3498db);
    color: white;
    padding: 30px;
    text-align: center;
    border-radius: 15px;
    margin-bottom: 30px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
}

.lark-header h1 {
    font-size: 2.5em;
    margin-bottom: 10px;
    font-weight: 300;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
}

.lark-header p {
    font-size: 1.1em;
    opacity: 0.9;
}

/* Button Styles */
.lark-btn {
    background: linear-gradient(45deg, #3498db, #2980b9);
    color: white;
    border: none;
    border-radius: 25px;
    padding: 12px 24px;
    font-size: 1em;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
    text-decoration: none;
    display: inline-block;
}

.lark-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0,0,0,0.3);
}

.lark-btn.success {
    background: linear-gradient(45deg, #27ae60, #2ecc71);
}

.lark-btn.warning {
    background: linear-gradient(45deg, #f39c12, #e67e22);
}

.lark-btn.danger {
    background: linear-gradient(45deg, #e74c3c, #c0392b);
}

/* Form Elements */
.lark-input-group {
    margin-bottom: 20px;
}

.lark-label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: #2c3e50;
}

.lark-input, .lark-select {
    width: 100%;
    padding: 12px;
    border: 2px solid #ddd;
    border-radius: 8px;
    background: white;
    color: #333;
    font-size: 16px;
    transition: all 0.3s ease;
}

.lark-input:focus, .lark-select:focus {
    outline: none;
    border-color: #3498db;
    box-shadow: 0 0 15px rgba(52, 152, 219, 0.3);
}

/* Card Styles */
.lark-card {
    background: rgba(255, 255, 255, 0.95);
    border-radius: 15px;
    padding: 25px;
    margin-bottom: 20px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255,255,255,0.2);
}

.lark-card h2, .lark-card h3 {
    color: #2c3e50;
    margin-bottom: 15px;
}

/* Grid Layouts */
.lark-grid-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
}

.lark-grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

/* Result Display */
.lark-result {
    background: linear-gradient(45deg, #27ae60, #2ecc71);
    color: white;
    border-radius: 10px;
    padding: 20px;
    text-align: center;
    font-size: 1.3em;
    font-weight: bold;
    margin-top: 20px;
    box-shadow: 0 5px 15px rgba(39, 174, 96, 0.3);
}

.lark-result.warning {
    background: linear-gradient(45deg, #f39c12, #e67e22);
    box-shadow: 0 5px 15px rgba(243, 156, 18, 0.3);
}

.lark-result.error {
    background: linear-gradient(45deg, #e74c3c, #c0392b);
    box-shadow: 0 5px 15px rgba(231, 76, 60, 0.3);
}

/* Navigation */
.lark-nav {
    background: rgba(52, 152, 219, 0.1);
    backdrop-filter: blur(10px);
    padding: 15px 0;
    border-radius: 10px;
    margin-bottom: 20px;
    text-align: center;
}

.lark-nav a {
    color: #3498db;
    text-decoration: none;
    margin: 0 15px;
    padding: 8px 16px;
    border-radius: 20px;
    transition: all 0.3s ease;
    font-weight: 500;
}

.lark-nav a:hover {
    background: rgba(52, 152, 219, 0.2);
    color: #2980b9;
}

/* Loading Spinner */
.lark-spinner {
    border: 4px solid #f3f3f3;
    border-top: 4px solid #3498db;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
    margin: 20px auto;
}

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

/* Mobile Responsive */
@media (max-width: 768px) {
    .lark-grid-2, .lark-grid-3 {
        grid-template-columns: 1fr;
        gap: 15px;
    }
    
    .lark-header h1 {
        font-size: 2em;
    }
    
    .lark-container {
        padding: 15px;
    }
    
    .lark-card {
        padding: 20px;
    }
}

/* Dark Mode Support */
@media (prefers-color-scheme: dark) {
    .lark-card {
        background: rgba(44, 62, 80, 0.95);
        color: white;
    }
    
    .lark-label {
        color: #ecf0f1;
    }
    
    .lark-input, .lark-select {
        background: rgba(255,255,255,0.1);
        color: white;
        border-color: rgba(255,255,255,0.3);
    }
}

/* Accessibility */
*:focus {
    outline: 2px solid #3498db;
    outline-offset: 2px;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}