/* ===== RESET & 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;
    background-color: #f8f9fa;
}

/* ===== LAYOUT & CONTAINER ===== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ===== AUTHENTICATION PAGES ===== */
.unauthenticated {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.login-container {
    width: 100%;
    max-width: 400px;
    padding: 20px;
}

.login-form {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

.login-form h1 {
    text-align: center;
    margin-bottom: 0.5rem;
    color: #2c3e50;
}

.login-form p {
    text-align: center;
    color: #7f8c8d;
    margin-bottom: 2rem;
}

/* ===== FORM STYLES ===== */
.form-group {
    margin-bottom: 1.5rem;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: #2c3e50;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid #e9ecef;
    border-radius: 5px;
    font-size: 1rem;
    transition: border-color 0.3s, box-shadow 0.3s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #3498db;
    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.1);
}

.form-group small {
    display: block;
    margin-top: 0.25rem;
    font-size: 0.8rem;
    color: #6c757d;
}

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

.btn-primary {
    background-color: #3498db;
    color: white;
    width: 100%;
}

.btn-primary:hover {
    background-color: #2980b9;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(52, 152, 219, 0.3);
}

.btn-secondary {
    background-color: #95a5a6;
    color: white;
}

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

.btn-success {
    background-color: #27ae60;
    color: white;
}

.btn-success:hover {
    background-color: #219a52;
}

.btn-warning {
    background-color: #f39c12;
    color: white;
}

.btn-warning:hover {
    background-color: #e67e22;
}

.btn-danger {
    background-color: #e74c3c;
    color: white;
}

.btn-danger:hover {
    background-color: #c0392b;
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

/* ===== HEADER & NAVIGATION ===== */
.authenticated {
    min-height: 100vh;
}

.main-header {
    background: white;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.main-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.nav-brand a {
    font-size: 1.5rem;
    font-weight: bold;
    color: #2c3e50;
    text-decoration: none;
}

.nav-links {
    display: flex;
    gap: 2rem;
}

.nav-links a {
    color: #7f8c8d;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s;
}

.nav-links a:hover,
.nav-links a.active {
    color: #3498db;
}

.nav-user {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.btn-logout {
    background-color: #e74c3c;
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 5px;
    text-decoration: none;
}

.btn-logout:hover {
    background-color: #c0392b;
}

/* ===== DASHBOARD STYLES ===== */
.dashboard-header {
    background: white;
    padding: 2rem;
    margin: 2rem auto;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.dashboard-header h1 {
    color: #2c3e50;
    margin-bottom: 0.5rem;
}

.dashboard-actions {
    margin: 2rem 0;
}

.care-recipients-section {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    margin-bottom: 2rem;
}

.care-recipients-section h2 {
    color: #2c3e50;
    margin-bottom: 1.5rem;
}

.care-recipients-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
}

.care-recipient-card {
    background: #f8f9fa;
    border: 1px solid #e9ecef;
    border-radius: 8px;
    padding: 1.5rem;
    transition: transform 0.3s, box-shadow 0.3s;
}

.care-recipient-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.care-recipient-card h3 {
    color: #2c3e50;
    margin-bottom: 0.5rem;
}

.care-recipient-card p {
    color: #7f8c8d;
    margin-bottom: 0.5rem;
}

.care-recipient-card .actions {
    display: flex;
    gap: 0.5rem;
    margin-top: 1rem;
}

/* ===== PAGE HEADER STYLES ===== */
.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    padding: 1.5rem;
    background: white;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.page-header h1 {
    color: #2c3e50;
    margin: 0;
}

/* ===== UTILITY CLASSES ===== */
.loading {
    text-align: center;
    padding: 2rem;
    color: #7f8c8d;
    font-style: italic;
}

.no-data {
    text-align: center;
    padding: 3rem;
    color: #7f8c8d;
    font-style: italic;
}

.error {
    background: #f8d7da;
    color: #721c24;
    padding: 1rem;
    border-radius: 5px;
    margin: 1rem 0;
    border: 1px solid #f5c6cb;
}

.success {
    background: #d4edda;
    color: #155724;
    padding: 1rem;
    border-radius: 5px;
    margin: 1rem 0;
    border: 1px solid #c3e6cb;
}

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

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

.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }

/* ===== LINK STYLES ===== */
a {
    color: #3498db;
    text-decoration: none;
    transition: color 0.3s;
}

a:hover {
    color: #2980b9;
    text-decoration: underline;
}

.login-link,
.register-link {
    text-align: center;
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid #e9ecef;
}

/* ===== FORM CONTAINER ===== */
.form-container {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    max-width: 600px;
    margin: 0 auto;
}

.form-actions {
    display: flex;
    gap: 1rem;
    justify-content: flex-end;
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid #e9ecef;
}

/* ===== PROFILE STYLES ===== */
.profile-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    padding: 1.5rem;
    background: white;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.profile-actions {
    display: flex;
    gap: 1rem;
}

.profile-content {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.profile-info h2 {
    color: #2c3e50;
    margin-bottom: 1.5rem;
}

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

.info-item {
    display: flex;
    justify-content: space-between;
    padding: 0.75rem 0;
    border-bottom: 1px solid #e9ecef;
}

.info-item label {
    font-weight: 600;
    color: #2c3e50;
}

.info-item span {
    color: #7f8c8d;
}

/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 768px) {
    .container {
        padding: 0 15px;
    }
    
    .main-nav {
        flex-direction: column;
        gap: 1rem;
        padding: 1rem;
    }
    
    .nav-links {
        gap: 1rem;
    }
    
    .page-header {
        flex-direction: column;
        gap: 1rem;
        align-items: flex-start;
    }
    
    .profile-header {
        flex-direction: column;
        gap: 1rem;
        align-items: flex-start;
    }
    
    .profile-actions {
        flex-direction: column;
        width: 100%;
    }
    
    .profile-actions .btn {
        width: 100%;
        text-align: center;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .care-recipients-grid {
        grid-template-columns: 1fr;
    }
    
    .form-actions {
        flex-direction: column;
    }
    
    .form-actions .btn {
        width: 100%;
    }
}

@media (max-width: 480px) {
    .login-form {
        padding: 1.5rem;
    }
    
    .dashboard-header,
    .care-recipients-section,
    .profile-content {
        padding: 1rem;
    }
    
    .btn {
        padding: 0.75rem 1rem;
    }
}

/* ===== ACCESSIBILITY ===== */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Focus styles for keyboard navigation */
button:focus,
input:focus,
select:focus,
textarea:focus,
a:focus {
    outline: 2px solid #3498db;
    outline-offset: 2px;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    body {
        background: white;
        color: black;
    }
    
    .login-form,
    .dashboard-header,
    .care-recipients-section,
    .profile-content {
        border: 2px solid black;
        box-shadow: none;
    }
}