/* ============================================================================
   ENERGIMA HYTTER - MAIN STYLESHEET
   ============================================================================ */

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

:root {
    --primary: #3498db;
    --secondary: #95a5a6;
    --success: #27ae60;
    --danger: #e74c3c;
    --warning: #f39c12;
    --dark: #2c3e50;
    --light: #ecf0f1;
    --text: #333;
    --text-light: #666;
    --border: #bdc3c7;
    --shadow: 0 2px 8px rgba(0,0,0,0.1);
}

html, body {
    height: 100%;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: #f5f6fa;
    color: var(--text);
}

body {
    display: flex;
    flex-direction: column;
}

/* ============================================================================
   HEADER
   ============================================================================ */

.header {
    background: var(--dark);
    color: white;
    padding: 15px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 2px 4px rgba(0,0,0,0.2);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header h1 {
    font-size: 1.3rem;
    font-weight: 600;
    margin: 0;
}

.user-menu {
    display: flex;
    align-items: center;
    gap: 10px;
}

.user-name {
    font-size: 0.9rem;
    opacity: 0.9;
}

/* ============================================================================
   CONTAINER & CONTENT
   ============================================================================ */

.container {
    flex: 1;
    display: flex;
    flex-direction: column;
    max-width: 900px;
    margin: 0 auto;
    width: 100%;
    padding: 20px;
}

.main-content {
    flex: 1;
}

/* ============================================================================
   FOOTER
   ============================================================================ */

.footer {
    background: var(--dark);
    color: white;
    text-align: center;
    padding: 20px;
    font-size: 0.9rem;
    margin-top: 40px;
}

.footer p {
    margin: 5px 0;
}

.footer a {
    color: #3498db;
    text-decoration: none;
}

/* ============================================================================
   BUTTONS
   ============================================================================ */

.btn {
    display: inline-block;
    padding: 10px 20px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-size: 0.95rem;
    text-decoration: none;
    transition: all 0.3s ease;
    font-weight: 500;
}

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

.btn-primary:hover {
    background: #2980b9;
    box-shadow: var(--shadow);
}

.btn-primary:active {
    transform: scale(0.98);
}

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

.btn-secondary:hover {
    background: #7f8c8d;
}

.btn-small {
    padding: 6px 12px;
    font-size: 0.85rem;
}

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

.btn-large {
    padding: 15px 20px;
    font-size: 1rem;
}

button:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

/* ============================================================================
   ALERTS
   ============================================================================ */

.alert {
    padding: 12px 15px;
    margin-bottom: 15px;
    border-radius: 5px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    animation: slideDown 0.3s ease;
}

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

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

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

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

.alert-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    opacity: 0.7;
    transition: opacity 0.2s;
}

.alert-close:hover {
    opacity: 1;
}

/* ============================================================================
   FORMS
   ============================================================================ */

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

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--dark);
}

.form-group input[type="text"],
.form-group input[type="tel"],
.form-group input[type="email"],
.form-group input[type="password"],
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 10px;
    border: 1px solid var(--border);
    border-radius: 5px;
    font-size: 1rem;
    font-family: inherit;
    box-sizing: border-box;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.1);
}

.form-group small {
    display: block;
    margin-top: 5px;
    color: #7f8c8d;
    font-size: 0.85rem;
}

/* ============================================================================
   RESPONSIVE
   ============================================================================ */

@media (max-width: 768px) {
    .container {
        padding: 15px;
    }
    
    .header {
        flex-wrap: wrap;
    }
    
    .header h1 {
        flex: 1;
        font-size: 1.1rem;
    }
}

@media (max-width: 480px) {
    .header h1 {
        font-size: 1rem;
    }
    
    .user-menu {
        font-size: 0.8rem;
    }
    
    .btn {
        padding: 10px 15px;
        font-size: 0.9rem;
    }
}

/* ============================================================================
   UTILITIES
   ============================================================================ */

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

.text-right {
    text-align: right;
}

.mt-1 { margin-top: 10px; }
.mt-2 { margin-top: 20px; }
.mt-3 { margin-top: 30px; }

.mb-1 { margin-bottom: 10px; }
.mb-2 { margin-bottom: 20px; }
.mb-3 { margin-bottom: 30px; }

.p-1 { padding: 10px; }
.p-2 { padding: 20px; }
.p-3 { padding: 30px; }