/* CSS Custom Properties */
:root {
    --color-primary: #3b82f6;
    --color-primary-dark: #2563eb;
    --color-primary-light: #60a5fa;
    --color-success: #10b981;
    --color-success-dark: #059669;
    --color-danger: #ef4444;
    --color-danger-dark: #dc2626;
    --color-warning: #f59e0b;
    --color-warning-dark: #d97706;
    --color-gray-50: #f9fafb;
    --color-gray-100: #f3f4f6;
    --color-gray-200: #e5e7eb;
    --color-gray-300: #d1d5db;
    --color-gray-400: #9ca3af;
    --color-gray-500: #6b7280;
    --color-gray-600: #4b5563;
    --color-gray-700: #374151;
    --color-gray-800: #1f2937;
    --color-gray-900: #111827;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    --radius-sm: 0.375rem;
    --radius: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --transition: all 0.2s ease;
}

/* Reset */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

/* Base Styles */
html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    color: var(--color-gray-800);
    line-height: 1.6;
}

/* App Container */
.app-container {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* Header */
.app-header {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-md);
    position: sticky;
    top: 0;
    z-index: 100;
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--color-gray-800);
}

.logo svg {
    color: var(--color-primary);
}

.nav-links {
    display: flex;
    gap: 0.5rem;
}

.nav-link {
    padding: 0.5rem 1rem;
    text-decoration: none;
    color: var(--color-gray-600);
    font-weight: 500;
    border-radius: var(--radius);
    transition: var(--transition);
}

.nav-link:hover {
    background: var(--color-gray-100);
    color: var(--color-primary);
}

/* Main Content */
.main-content {
    flex: 1;
    padding: 2rem;
    display: flex;
    justify-content: center;
    align-items: flex-start;
}

/* Footer */
.app-footer {
    background: rgba(0, 0, 0, 0.1);
    padding: 1rem 2rem;
    text-align: center;
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.875rem;
}

/* Card Component */
.card {
    background: white;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    width: 100%;
    max-width: 600px;
    overflow: hidden;
}

.card-header {
    padding: 2rem 2rem 0;
}

.card-header h1 {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--color-gray-900);
    margin-bottom: 0.5rem;
}

.card-header p {
    color: var(--color-gray-500);
    font-size: 0.95rem;
}

.card-body {
    padding: 2rem;
}

/* Location Badge */
.location-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: white;
    padding: 0.75rem 1.25rem;
    border-radius: var(--radius-lg);
    font-weight: 600;
    margin-bottom: 1.5rem;
    box-shadow: var(--shadow-md);
}

.location-badge svg {
    width: 20px;
    height: 20px;
}

/* Form Styles */
.form-group {
    margin-bottom: 1.5rem;
}

.form-label {
    display: block;
    font-weight: 600;
    color: var(--color-gray-700);
    margin-bottom: 0.5rem;
    font-size: 0.95rem;
}

.form-label.required::after {
    content: '*';
    color: var(--color-danger);
    margin-left: 0.25rem;
}

.form-control {
    width: 100%;
    padding: 0.875rem 1rem;
    border: 2px solid var(--color-gray-200);
    border-radius: var(--radius);
    font-size: 1rem;
    font-family: inherit;
    transition: var(--transition);
    background: white;
}

.form-control:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
}

.form-control::placeholder {
    color: var(--color-gray-400);
}

textarea.form-control {
    resize: vertical;
    min-height: 100px;
}

select.form-control {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%236b7280' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='M6 8l4 4 4-4'/%3e%3c/svg%3e");
    background-position: right 0.75rem center;
    background-repeat: no-repeat;
    background-size: 1.5em 1.5em;
    padding-right: 2.5rem;
}

/* Radio & Checkbox Styles */
.radio-group, .checkbox-group {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.radio-option, .checkbox-option {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem;
    border: 2px solid var(--color-gray-200);
    border-radius: var(--radius);
    cursor: pointer;
    transition: var(--transition);
}

.radio-option:hover, .checkbox-option:hover {
    border-color: var(--color-primary-light);
    background: var(--color-gray-50);
}

.radio-option input[type="radio"],
.checkbox-option input[type="checkbox"] {
    width: 20px;
    height: 20px;
    accent-color: var(--color-primary);
    cursor: pointer;
}

.radio-option.selected, .checkbox-option.selected {
    border-color: var(--color-primary);
    background: rgba(59, 130, 246, 0.05);
}

/* Toggle Switch for Medical */
.toggle-container {
    display: flex;
    gap: 1rem;
}

.toggle-btn {
    flex: 1;
    padding: 1rem;
    border: 2px solid var(--color-gray-200);
    border-radius: var(--radius);
    background: white;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    color: var(--color-gray-600);
}

.toggle-btn:hover {
    border-color: var(--color-gray-300);
}

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

.toggle-btn.active.danger {
    background: var(--color-danger);
    border-color: var(--color-danger);
}

/* Conditional Section */
.conditional-section {
    display: none;
    margin-top: 1.5rem;
    padding: 1.5rem;
    background: var(--color-gray-50);
    border-radius: var(--radius);
    border: 1px solid var(--color-gray-200);
}

.conditional-section.visible {
    display: block;
    animation: slideDown 0.3s ease;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Checkbox List */
.checkbox-list {
    display: grid;
    gap: 0.75rem;
}

.checkbox-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem;
    border: 2px solid var(--color-gray-200);
    border-radius: var(--radius);
    cursor: pointer;
    transition: var(--transition);
    background: white;
}

.checkbox-item:hover {
    border-color: var(--color-primary-light);
}

.checkbox-item.checked {
    border-color: var(--color-success);
    background: rgba(16, 185, 129, 0.05);
}

.checkbox-item input[type="checkbox"] {
    width: 20px;
    height: 20px;
    accent-color: var(--color-success);
    cursor: pointer;
}

.checkbox-item label {
    flex: 1;
    cursor: pointer;
    font-weight: 500;
    color: var(--color-gray-700);
}

/* Contact Section */
.contact-section {
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid var(--color-gray-200);
}

.contact-section h3 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-gray-700);
    margin-bottom: 0.25rem;
}

.contact-section p {
    font-size: 0.875rem;
    color: var(--color-gray-500);
    margin-bottom: 1rem;
}

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

@media (max-width: 640px) {
    .contact-grid {
        grid-template-columns: 1fr;
    }
}

/* Submit Button */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 1rem 2rem;
    border: none;
    border-radius: var(--radius);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: white;
    box-shadow: 0 4px 14px rgba(59, 130, 246, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(59, 130, 246, 0.5);
}

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

.btn-success {
    background: linear-gradient(135deg, var(--color-success) 0%, var(--color-success-dark) 100%);
    color: white;
    box-shadow: 0 4px 14px rgba(16, 185, 129, 0.4);
}

.btn-success:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(16, 185, 129, 0.5);
}

.btn-danger {
    background: linear-gradient(135deg, var(--color-danger) 0%, var(--color-danger-dark) 100%);
    color: white;
    box-shadow: 0 4px 14px rgba(239, 68, 68, 0.4);
}

.btn-block {
    width: 100%;
}

.btn svg {
    width: 20px;
    height: 20px;
}

/* Character Counter */
.char-counter {
    text-align: right;
    font-size: 0.8rem;
    color: var(--color-gray-400);
    margin-top: 0.25rem;
}

.char-counter.warning {
    color: var(--color-warning);
}

.char-counter.danger {
    color: var(--color-danger);
}

/* Validation */
.field-validation-error {
    display: block;
    color: var(--color-danger);
    font-size: 0.875rem;
    margin-top: 0.375rem;
}

.form-control.input-validation-error {
    border-color: var(--color-danger);
}

/* Success Page */
.success-card {
    text-align: center;
    padding: 3rem 2rem;
}

.success-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--color-success) 0%, var(--color-success-dark) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    animation: scaleIn 0.5s ease;
}

.success-icon svg {
    width: 40px;
    height: 40px;
    color: white;
}

@keyframes scaleIn {
    0% {
        transform: scale(0);
    }
    50% {
        transform: scale(1.1);
    }
    100% {
        transform: scale(1);
    }
}

.success-card h1 {
    font-size: 1.75rem;
    color: var(--color-gray-900);
    margin-bottom: 0.75rem;
}

.success-card p {
    color: var(--color-gray-500);
    margin-bottom: 2rem;
}

/* Error/Failed Page */
.error-card {
    text-align: center;
    padding: 3rem 2rem;
}

.error-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--color-danger) 0%, var(--color-danger-dark) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    animation: shake 0.5s ease;
}

.error-icon svg {
    width: 40px;
    height: 40px;
    color: white;
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-5px); }
    75% { transform: translateX(5px); }
}

.error-card h1 {
    font-size: 1.75rem;
    color: var(--color-danger);
    margin-bottom: 0.75rem;
}

.error-card p {
    color: var(--color-gray-500);
    margin-bottom: 2rem;
}

/* Alert Messages */
.alert {
    padding: 1rem 1.25rem;
    border-radius: var(--radius);
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.alert-info {
    background: rgba(59, 130, 246, 0.1);
    border: 1px solid rgba(59, 130, 246, 0.2);
    color: var(--color-primary-dark);
}

.alert-danger {
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.2);
    color: var(--color-danger-dark);
}

/* Loading State */
.btn.loading {
    position: relative;
    color: transparent;
    pointer-events: none;
}

.btn.loading::after {
    content: '';
    position: absolute;
    width: 20px;
    height: 20px;
    border: 2px solid white;
    border-top-color: transparent;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Medical Emergency Highlight */
.medical-alert {
    background: linear-gradient(135deg, rgba(239, 68, 68, 0.1) 0%, rgba(239, 68, 68, 0.05) 100%);
    border: 2px solid var(--color-danger);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
}

.medical-alert h3 {
    color: var(--color-danger);
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
}

/* Responsive */
@media (max-width: 640px) {
    .header-content {
        padding: 1rem;
    }

    .logo span {
        display: none;
    }

    .main-content {
        padding: 1rem;
    }

    .card-header, .card-body {
        padding: 1.5rem;
    }

    .toggle-container {
        flex-direction: column;
    }
}