/* /var/www/sms/style.css */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    padding: 20px;
}

header {
    background: white;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

header h1 {
    color: #2c3e50;
}

.btn-logout {
    background: #e74c3c;
    color: white;
    padding: 10px 20px;
    border-radius: 6px;
    text-decoration: none;
    font-weight: 600;
}

main {
    max-width: 1200px;
    margin: 0 auto;
}

section {
    background: white;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    margin-bottom: 20px;
}

h2 {
    color: #2c3e50;
    margin-bottom: 20px;
    border-bottom: 2px solid #3498db;
    padding-bottom: 10px;
}

.send-sms form {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

input, textarea, button {
    padding: 12px;
    border: 2px solid #e0e0e0;
    border-radius: 6px;
    font-size: 14px;
}

input:focus, textarea:focus {
    outline: none;
    border-color: #3498db;
}

textarea {
    min-height: 100px;
    resize: vertical;
    font-family: inherit;
}

button {
    background: #3498db;
    color: white;
    border: none;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.3s;
}

button:hover {
    background: #2980b9;
    transform: translateY(-2px);
}

table {
    width: 100%;
    border-collapse: collapse;
}

thead {
    background: #f8f9fa;
}

th, td {
    padding: 12px;
    text-align: left;
    border-bottom: 1px solid #e0e0e0;
}

.status-success {
    color: #27ae60;
    font-weight: 600;
}

.status-error {
    color: #e74c3c;
    font-weight: 600;
}

.status-pending {
    color: #f39c12;
    font-weight: 600;
}

/* Login page */
.login-page {
    display: flex;
    align-items: center;
    justify-content: center;
}

.login-container {
    background: white;
    padding: 40px;
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
    max-width: 400px;
    width: 100%;
}

.login-container h1 {
    text-align: center;
    margin-bottom: 30px;
    color: #2c3e50;
}

.login-container form {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.alert {
    padding: 15px;
    border-radius: 6px;
    margin-bottom: 20px;
}

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

.info {
    text-align: center;
    color: #666;
    font-size: 14px;
    margin-top: 15px;
}

.login-container a {
    color: #3498db;
    text-decoration: none;
    text-align: center;
    display: block;
    margin-top: 15px;
}

/* Responsive */
@media (max-width: 768px) {
    header {
        flex-direction: column;
        gap: 15px;
    }
    
    section {
        padding: 20px;
    }
    
    table {
        font-size: 12px;
    }
    
    th, td {
        padding: 8px;
    }
}