/* ==========================================
   Instituto Saúde e Social - Design System
   ========================================== */

/* Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

/* CSS Variables */
:root {
    /* Primary Colors - Teal from logo */
    --primary-50: #e6f5f2;
    --primary-100: #c2e8e0;
    --primary-200: #9adacc;
    --primary-300: #72ccb8;
    --primary-400: #4dbfa4;
    --primary-500: #2a7d6e;
    --primary-600: #236b5e;
    --primary-700: #1c594e;
    --primary-800: #15473e;
    --primary-900: #0e352e;

    /* Neutral Colors */
    --gray-50: #f8fafc;
    --gray-100: #f1f5f9;
    --gray-200: #e2e8f0;
    --gray-300: #cbd5e1;
    --gray-400: #94a3b8;
    --gray-500: #64748b;
    --gray-600: #475569;
    --gray-700: #334155;
    --gray-800: #1e293b;
    --gray-900: #0f172a;

    /* Status Colors */
    --success: #10b981;
    --warning: #f59e0b;
    --error: #ef4444;
    --info: #3b82f6;

    /* Background */
    --bg-dark: #0c1f1a;
    --bg-gradient-start: #0c1f1a;
    --bg-gradient-mid: #153d34;
    --bg-gradient-end: #0c1f1a;

    /* Card */
    --card-bg: rgba(255, 255, 255, 0.98);
    --card-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    --card-border: rgba(255, 255, 255, 0.1);

    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

    /* 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;
    --radius-2xl: 1.5rem;
    --radius-full: 9999px;

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 350ms ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    font-size: 16px;
    line-height: 1.6;
    color: var(--gray-700);
    background: linear-gradient(180deg,
            var(--bg-gradient-start) 0%,
            var(--bg-gradient-mid) 30%,
            var(--bg-gradient-mid) 70%,
            var(--bg-gradient-end) 100%);
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Background Effect */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(ellipse at 20% 20%, rgba(42, 125, 110, 0.15) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 80%, rgba(42, 125, 110, 0.1) 0%, transparent 50%),
        radial-gradient(ellipse at 50% 50%, rgba(42, 125, 110, 0.05) 0%, transparent 70%);
    pointer-events: none;
    z-index: -1;
}

/* ==========================================
   Header Styles
   ========================================== */
.header {
    text-align: center;
    padding: var(--spacing-2xl) var(--spacing-lg);
    animation: fadeInDown 0.6s ease;
}

.header__logo-container {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 100px;
    height: 100px;
    background: white;
    border-radius: var(--radius-full);
    box-shadow:
        0 10px 40px rgba(0, 0, 0, 0.3),
        0 0 0 4px rgba(255, 255, 255, 0.1);
    margin-bottom: var(--spacing-lg);
    overflow: hidden;
    transition: transform var(--transition-base);
}

.header__logo-container:hover {
    transform: scale(1.05);
}

.header__logo {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.header__title {
    font-size: 1.75rem;
    font-weight: 700;
    color: white;
    margin-bottom: var(--spacing-xs);
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.header__subtitle {
    font-size: 0.95rem;
    color: rgba(255, 255, 255, 0.8);
    font-weight: 400;
}

/* ==========================================
   Main Container
   ========================================== */
.main-container {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg) var(--spacing-2xl);
}

@media (max-width: 640px) {
    .main-container {
        padding: 0 var(--spacing-md) var(--spacing-xl);
    }
}

/* ==========================================
   Form Card
   ========================================== */
.form-card {
    background: var(--card-bg);
    border-radius: var(--radius-2xl);
    box-shadow: var(--card-shadow);
    overflow: hidden;
    animation: fadeInUp 0.6s ease 0.2s backwards;
}

/* ==========================================
   Section Styles
   ========================================== */
.form-section {
    padding: var(--spacing-xl) var(--spacing-xl);
    border-bottom: 1px solid var(--gray-200);
    transition: background var(--transition-base);
}

@media (max-width: 640px) {
    .form-section {
        padding: var(--spacing-lg) var(--spacing-md);
    }
}

.form-section:last-child {
    border-bottom: none;
}

.form-section:hover {
    background: var(--gray-50);
}

.section-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.section-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    background: linear-gradient(135deg, var(--primary-500), var(--primary-600));
    border-radius: var(--radius-lg);
    color: white;
    font-size: 1.25rem;
    box-shadow: 0 4px 12px rgba(42, 125, 110, 0.3);
}

.section-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--gray-800);
}

/* ==========================================
   Form Grid
   ========================================== */
.form-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-lg);
}

.form-grid--single {
    grid-template-columns: 1fr;
}

.form-grid--three {
    grid-template-columns: repeat(3, 1fr);
}

@media (max-width: 768px) {

    .form-grid,
    .form-grid--three {
        grid-template-columns: 1fr !important;
        /* Force single column on mobile/tablet */
    }

    /* Reset any specific column spans on mobile */
    .form-group[style*="grid-column: span 2"] {
        grid-column: 1 / -1 !important;
    }
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.form-group--full {
    grid-column: 1 / -1;
}

/* ==========================================
   Form Subsection (Address grouping)
   ========================================== */
.form-subsection {
    margin-top: var(--spacing-lg);
    padding: var(--spacing-lg);
    background: var(--gray-50);
    border-radius: var(--radius-lg);
    border: 1px solid var(--gray-200);
}

.form-subsection__title {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--gray-700);
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-sm);
    border-bottom: 1px solid var(--gray-200);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.form-subsection__title::before {
    content: '';
    display: inline-block;
    width: 4px;
    height: 16px;
    background: var(--primary-500);
    border-radius: 2px;
}

.form-subsection .form-grid {
    grid-template-columns: repeat(3, 1fr);
}

@media (max-width: 768px) {
    .form-subsection .form-grid {
        grid-template-columns: 1fr;
    }

    .form-subsection .form-group[style*="grid-column: span 2"] {
        grid-column: 1 / -1 !important;
    }
}

.form-hint {
    font-size: 0.75rem;
    color: var(--gray-500);
    margin-top: 2px;
}

@media (max-width: 768px) {
    .form-subsection .form-grid {
        grid-template-columns: 1fr;
    }

    .form-subsection .form-group[style*="grid-column: span 2"] {
        grid-column: 1 / -1 !important;
    }
}

/* ==========================================
   Labels
   ========================================== */
.form-label {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--gray-700);
}

.form-label--required::after {
    content: ' *';
    color: var(--error);
}

/* ==========================================
   Inputs
   ========================================== */
.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    font-family: var(--font-family);
    font-size: 0.95rem;
    color: var(--gray-800);
    background: white;
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    outline: none;
}

.form-input:hover,
.form-select:hover,
.form-textarea:hover {
    border-color: var(--gray-300);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    border-color: var(--primary-500);
    box-shadow: 0 0 0 3px rgba(42, 125, 110, 0.15);
}

.form-input::placeholder,
.form-textarea::placeholder {
    color: var(--gray-400);
}

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

.form-select {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%2364748b'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M19 9l-7 7-7-7'%3E%3C/path%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.75rem center;
    background-size: 1.25rem;
    padding-right: 2.5rem;
}

/* ==========================================
   Checkbox & Radio Groups
   ========================================== */
.checkbox-group,
.radio-group {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.checkbox-item,
.radio-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
    cursor: pointer;
}

.checkbox-item input,
.radio-item input {
    width: 18px;
    height: 18px;
    accent-color: var(--primary-500);
    cursor: pointer;
    margin-top: 3px;
}

.checkbox-label,
.radio-label {
    font-size: 0.9rem;
    color: var(--gray-600);
    cursor: pointer;
    transition: color var(--transition-fast);
}

.checkbox-item:hover .checkbox-label,
.radio-item:hover .radio-label {
    color: var(--gray-800);
}

/* ==========================================
   Range Input
   ========================================== */
.range-container {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.range-input {
    width: 100%;
    height: 8px;
    border-radius: var(--radius-full);
    background: var(--gray-200);
    outline: none;
    -webkit-appearance: none;
    appearance: none;
}

.range-input::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 22px;
    height: 22px;
    border-radius: var(--radius-full);
    background: var(--primary-500);
    cursor: pointer;
    box-shadow: 0 2px 8px rgba(42, 125, 110, 0.4);
    transition: transform var(--transition-fast);
}

.range-input::-webkit-slider-thumb:hover {
    transform: scale(1.1);
}

.range-labels {
    display: flex;
    justify-content: space-between;
    font-size: 0.8rem;
    color: var(--gray-500);
}

/* ==========================================
   File Upload
   ========================================== */
.file-upload {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-xl);
    border: 2px dashed var(--gray-300);
    border-radius: var(--radius-lg);
    background: var(--gray-50);
    cursor: pointer;
    transition: all var(--transition-base);
}

.file-upload:hover {
    border-color: var(--primary-500);
    background: rgba(42, 125, 110, 0.05);
}

.file-upload input {
    position: absolute;
    width: 100%;
    height: 100%;
    opacity: 0;
    cursor: pointer;
}

.file-upload__icon {
    font-size: 2rem;
    color: var(--gray-400);
    margin-bottom: var(--spacing-sm);
}

.file-upload__text {
    font-size: 0.9rem;
    color: var(--gray-600);
}

.file-upload__hint {
    font-size: 0.8rem;
    color: var(--gray-400);
    margin-top: var(--spacing-xs);
}

/* ==========================================
   Alert Box
   ========================================== */
.alert-box {
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    font-size: 0.85rem;
    line-height: 1.5;
}

.alert-box--info {
    background: rgba(59, 130, 246, 0.1);
    border: 1px solid rgba(59, 130, 246, 0.3);
    color: var(--info);
}

.alert-box--warning {
    background: rgba(245, 158, 11, 0.1);
    border: 1px solid rgba(245, 158, 11, 0.3);
    color: var(--warning);
}

/* ==========================================
   Submit Section
   ========================================== */
.submit-section {
    padding: var(--spacing-xl);
    background: linear-gradient(135deg, var(--gray-50), white);
}

.consent-box {
    background: var(--gray-100);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.consent-box__title {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--gray-800);
    margin-bottom: var(--spacing-sm);
}

.consent-box__text {
    font-size: 0.85rem;
    color: var(--gray-600);
    line-height: 1.6;
    margin-bottom: var(--spacing-md);
}

.submit-btn {
    width: 100%;
    padding: 1rem 2rem;
    font-family: var(--font-family);
    font-size: 1rem;
    font-weight: 600;
    color: white;
    background: linear-gradient(135deg, var(--primary-500), var(--primary-600));
    border: none;
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--transition-base);
    box-shadow: 0 4px 15px rgba(42, 125, 110, 0.3);
}

.submit-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(42, 125, 110, 0.4);
}

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

.submit-btn:disabled {
    background: var(--gray-400);
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

/* ==========================================
   Footer
   ========================================== */
.footer {
    text-align: center;
    padding: var(--spacing-xl);
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.85rem;
}

.footer a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.footer a:hover {
    color: white;
}

/* ==========================================
   Animations
   ========================================== */
@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes pulse {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0.7;
    }
}

/* ==========================================
   Progress Indicator
   ========================================== */
.progress-bar {
    position: sticky;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: rgba(255, 255, 255, 0.1);
    z-index: 100;
}

.progress-bar__fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-400), var(--primary-600));
    transition: width var(--transition-base);
    border-radius: 0 var(--radius-full) var(--radius-full) 0;
}

/* ==========================================
   Responsive Design
   ========================================== */
@media (max-width: 768px) {
    .header {
        padding: var(--spacing-xl) var(--spacing-md);
    }

    .header__logo-container {
        width: 80px;
        height: 80px;
    }

    .header__title {
        font-size: 1.5rem;
    }

    .main-container {
        padding: 0 var(--spacing-md) var(--spacing-xl);
    }

    .form-section {
        padding: var(--spacing-lg);
    }

    .form-grid {
        grid-template-columns: 1fr !important;
    }

    .form-grid--three {
        grid-template-columns: 1fr;
    }

    .section-header {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-sm);
    }

    .section-icon {
        width: 38px;
        height: 38px;
        font-size: 1rem;
    }

    .checkbox-group,
    .radio-group {
        flex-direction: column;
    }
}

@media (max-width: 480px) {
    .header__title {
        font-size: 1.25rem;
    }

    .header__subtitle {
        font-size: 0.85rem;
    }

    .form-section {
        padding: var(--spacing-md);
    }

    .section-title {
        font-size: 1rem;
    }
}

/* ==========================================
   Utility Classes
   ========================================== */
.hidden {
    display: none !important;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    border: 0;
}

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

.mb-md {
    margin-bottom: var(--spacing-md);
}

.mt-md {
    margin-top: var(--spacing-md);
}