/* ========================================
   RESET & BASE STYLES
   ======================================== */

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

:root {
    /* SEJT Brand Colors */
    --primary-green: #2d7f5e;
    --primary-green-dark: #1f5d43;
    --primary-green-light: #3a9e75;
    --accent-gold: #d4af37;
    
    /* Neutral Colors */
    --white: #ffffff;
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;
    
    /* Status Colors */
    --success: #10b981;
    --error: #ef4444;
    --warning: #f59e0b;
    --info: #3b82f6;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    
    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
}

body {
    font-family: var(--font-family);
    line-height: 1.6;
    color: var(--gray-800);
    background-color: var(--gray-50);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

.header {
    background: linear-gradient(135deg, var(--primary-green) 0%, var(--primary-green-dark) 100%);
    color: var(--white);
    padding: var(--spacing-2xl) var(--spacing-md);
    text-align: center;
    box-shadow: var(--shadow-lg);
    position: relative;
    overflow: hidden;
}

.header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 50%, rgba(255, 255, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(255, 255, 255, 0.1) 0%, transparent 50%);
    pointer-events: none;
}

.header .container {
    position: relative;
    z-index: 1;
}

.logo-container {
    margin-bottom: var(--spacing-lg);
    animation: fadeInDown 0.8s ease-out;
}

.logo {
    max-width: 150px;
    height: auto;
    filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.2));
    transition: transform 0.3s ease, filter 0.3s ease;
}

.logo:hover {
    transform: scale(1.05);
    filter: drop-shadow(0 6px 12px rgba(0, 0, 0, 0.3));
}

.main-title {
    font-size: 2.25rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    letter-spacing: -0.025em;
    animation: fadeInUp 0.8s ease-out;
}

.subtitle {
    font-size: 1.125rem;
    font-weight: 400;
    opacity: 0.95;
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.8;
    animation: fadeInUp 0.8s ease-out 0.2s both;
}

/* ========================================
   CONTAINER
   ======================================== */

.container {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* ========================================
   MAIN CONTENT
   ======================================== */

.main-content {
    padding: var(--spacing-2xl) 0;
}

.health-form {
    background: var(--white);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    padding: var(--spacing-2xl);
    margin-bottom: var(--spacing-2xl);
    animation: fadeIn 0.6s ease-out;
}

/* ========================================
   FORM SECTIONS
   ======================================== */

.form-section {
    margin-bottom: var(--spacing-2xl);
    padding-bottom: var(--spacing-2xl);
    border-bottom: 2px solid var(--gray-100);
}

.form-section:last-of-type {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.section-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
    padding-bottom: var(--spacing-md);
    border-bottom: 3px solid var(--primary-green);
}

.section-header i {
    font-size: 1.5rem;
    color: var(--primary-green);
}

.section-header h2 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--gray-900);
}

/* ========================================
   FORM GROUPS
   ======================================== */

.form-row {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
}

.form-group:last-child {
    margin-bottom: 0;
}

.form-group label {
    font-weight: 500;
    color: var(--gray-700);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 0.9375rem;
}

.form-group label i {
    color: var(--primary-green);
    font-size: 1rem;
}

.required {
    color: var(--error);
    font-weight: 600;
}

.form-group small {
    color: var(--gray-500);
    font-size: 0.875rem;
    font-style: italic;
}

/* ========================================
   FORM INPUTS
   ======================================== */

input[type="text"],
input[type="email"],
input[type="tel"],
input[type="number"],
select,
textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 2px solid var(--gray-300);
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-family: var(--font-family);
    transition: all 0.3s ease;
    background-color: var(--white);
    color: var(--gray-800);
}

input[type="text"]:focus,
input[type="email"]:focus,
input[type="tel"]:focus,
input[type="number"]:focus,
select:focus,
textarea:focus {
    outline: none;
    border-color: var(--primary-green);
    box-shadow: 0 0 0 3px rgba(45, 127, 94, 0.1);
}

input[type="text"]:invalid:not(:placeholder-shown),
input[type="email"]:invalid:not(:placeholder-shown),
input[type="tel"]:invalid:not(:placeholder-shown),
input[type="number"]:invalid:not(:placeholder-shown) {
    border-color: var(--error);
}

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

select {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%234b5563' d='M6 9L1 4h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    padding-right: 2.5rem;
}

/* ========================================
   CHECKBOXES
   ======================================== */

.checkbox-label {
    font-weight: 500;
    color: var(--gray-700);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.checkbox-label i {
    color: var(--primary-green);
}

.checkbox-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    background-color: var(--gray-50);
    border-radius: var(--radius-md);
    border: 2px dashed var(--gray-300);
}

.checkbox-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    cursor: pointer;
    padding: var(--spacing-sm);
    border-radius: var(--radius-sm);
    transition: background-color 0.2s ease;
}

.checkbox-item:hover {
    background-color: var(--gray-100);
}

.checkbox-item input[type="checkbox"] {
    width: 1.25rem;
    height: 1.25rem;
    cursor: pointer;
    accent-color: var(--primary-green);
}

.checkbox-item span {
    font-size: 0.9375rem;
    color: var(--gray-700);
    user-select: none;
}

.gdpr-checkbox {
    padding: var(--spacing-lg);
    background-color: var(--gray-50);
    border-radius: var(--radius-md);
    border: 2px solid var(--gray-300);
}

.gdpr-checkbox input[type="checkbox"] {
    width: 1.5rem;
    height: 1.5rem;
    flex-shrink: 0;
}

.gdpr-checkbox span {
    font-size: 0.9375rem;
    line-height: 1.6;
}

/* ========================================
   ENERGY SLIDER
   ======================================== */

.slider-container {
    padding: var(--spacing-lg);
    background-color: var(--gray-50);
    border-radius: var(--radius-md);
    border: 2px solid var(--gray-300);
}

.energy-slider {
    width: 100%;
    height: 8px;
    border-radius: 5px;
    background: linear-gradient(to right, var(--error) 0%, var(--warning) 50%, var(--success) 100%);
    outline: none;
    -webkit-appearance: none;
    appearance: none;
}

.energy-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: var(--primary-green);
    cursor: pointer;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.energy-slider::-webkit-slider-thumb:hover {
    transform: scale(1.2);
    box-shadow: 0 4px 12px rgba(45, 127, 94, 0.4);
}

.energy-slider::-moz-range-thumb {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: var(--primary-green);
    cursor: pointer;
    border: none;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.energy-slider::-moz-range-thumb:hover {
    transform: scale(1.2);
    box-shadow: 0 4px 12px rgba(45, 127, 94, 0.4);
}

.slider-labels {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: var(--spacing-md);
    font-size: 0.875rem;
    color: var(--gray-600);
}

.slider-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-green);
}

/* ========================================
   FORM ACTIONS
   ======================================== */

.form-actions {
    display: flex;
    justify-content: center;
    margin-top: var(--spacing-2xl);
}

.submit-btn {
    background: linear-gradient(135deg, var(--primary-green) 0%, var(--primary-green-dark) 100%);
    color: var(--white);
    font-size: 1.125rem;
    font-weight: 600;
    padding: 1rem 3rem;
    border: none;
    border-radius: var(--radius-lg);
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    transition: all 0.3s ease;
    box-shadow: var(--shadow-lg);
    position: relative;
    overflow: hidden;
}

.submit-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s ease;
}

.submit-btn:hover::before {
    left: 100%;
}

.submit-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 24px rgba(45, 127, 94, 0.3);
}

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

.submit-btn i {
    font-size: 1.25rem;
}

/* ========================================
   AUTO-SAVE INDICATOR
   ======================================== */

.auto-save-indicator {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    background-color: var(--primary-green);
    color: var(--white);
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    display: none;
    align-items: center;
    gap: var(--spacing-sm);
    animation: slideInUp 0.3s ease-out;
    z-index: 1000;
}

.auto-save-indicator.show {
    display: flex;
}

.auto-save-indicator i {
    font-size: 1rem;
}

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

.footer {
    background-color: var(--gray-800);
    color: var(--gray-300);
    padding: var(--spacing-xl) var(--spacing-md);
    text-align: center;
    margin-top: var(--spacing-2xl);
}

.footer strong {
    color: var(--white);
    font-weight: 600;
}

.footer-contact {
    margin-top: var(--spacing-sm);
    font-size: 0.9375rem;
}

.footer-contact i {
    margin-right: var(--spacing-xs);
}

.footer-contact a {
    color: var(--primary-green-light);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-contact a:hover {
    color: var(--accent-gold);
    text-decoration: underline;
}

/* ========================================
   ANIMATIONS
   ======================================== */

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

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

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

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

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

@media (min-width: 640px) {
    .form-row {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .form-row .form-group:nth-child(3) {
        grid-column: span 2;
    }
}

@media (min-width: 768px) {
    .main-title {
        font-size: 2.5rem;
    }
    
    .subtitle {
        font-size: 1.25rem;
    }
    
    .logo {
        max-width: 150px;
    }
    
    .checkbox-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 767px) {
    .logo {
        max-width: 120px;
    }
    
    .main-title {
        font-size: 1.75rem;
    }
    
    .subtitle {
        font-size: 1rem;
    }
    
    .health-form {
        padding: var(--spacing-lg);
    }
    
    .section-header h2 {
        font-size: 1.25rem;
    }
    
    .checkbox-grid {
        grid-template-columns: 1fr;
    }
    
    .auto-save-indicator {
        bottom: 1rem;
        right: 1rem;
        font-size: 0.875rem;
        padding: 0.5rem 1rem;
    }
}

@media (max-width: 480px) {
    .logo {
        max-width: 100px;
    }
    
    .main-title {
        font-size: 1.5rem;
    }
    
    .subtitle {
        font-size: 0.9375rem;
    }
    
    .submit-btn {
        padding: 0.875rem 2rem;
        font-size: 1rem;
    }
}

/* ========================================
   PRINT STYLES
   ======================================== */

@media print {
    .header,
    .footer,
    .submit-btn,
    .auto-save-indicator {
        display: none;
    }
    
    .health-form {
        box-shadow: none;
    }
}