/* CSS Variables */
:root {
    --card: #ffffff;
    --ring: #34a85a;
    --input: #d4d4d4;
    --border: #d4d4d4;
    --radius: 0.5rem;
    --primary: #34a85a;
    --secondary: #6495ed;
    --background: #f9f9fa;
    --foreground: #333333;
    --card-foreground: #333333;
    --muted-foreground: #6e6e6e;
    --primary-foreground: #ffffff;
    --secondary-foreground: #ffffff;
}

html.dark {
    --card: #2f3436;
    --ring: #33cc33;
    --input: #444444;
    --border: #444444;
    --radius: 0.5rem;
    --primary: #33cc33;
    --secondary: #87ceeb;
    --background: #1a1d23;
    --foreground: #e5e5e5;
    --card-foreground: #e5e5e5;
    --muted-foreground: #a3a3a3;
    --primary-foreground: #000000;
    --secondary-foreground: #000000;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Arial, sans-serif;
    background: var(--background);
    min-height: 100vh;
    color: var(--foreground);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    transition: background-color 0.3s ease, color 0.3s ease;
}

.container {
    width: 100%;
    margin: 0;
    border-radius: 0;
    box-shadow: none;
    overflow: hidden;
    min-height: 100vh;
}

/* ── Header ─────────────────────────────────────────── */
.header {
    background: var(--card);
    border-bottom: 1px solid var(--border);
    padding: 25px 15px;
    text-align: center;
    color: var(--foreground);
    transition: background-color 0.3s ease, border-color 0.3s ease;
}

.header h1 {
    font-size: 1.8em;
    margin-bottom: 10px;
    color: var(--primary);
    font-weight: bold;
    line-height: 1.2;
}

.header p {
    font-size: 0.95em;
    color: var(--muted-foreground);
    opacity: 0.9;
    line-height: 1.4;
}

/* ── Form content ────────────────────────────────────── */
.form-content {
    padding: 15px;
    background: var(--background);
    transition: background-color 0.3s ease;
}

.consent-section {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 20px 15px;
    margin-bottom: 25px;
    position: relative;
    overflow: hidden;
    transition: background-color 0.3s ease, border-color 0.3s ease;
}

.consent-section h3 {
    color: var(--foreground);
    margin-bottom: 15px;
    font-size: 1.1em;
    border-bottom: 1px solid var(--border);
    padding-bottom: 10px;
}

.consent-text {
    color: var(--muted-foreground);
    line-height: 1.6;
    margin-bottom: 20px;
}

.consent-text strong {
    color: var(--foreground);
}

.consent-text ul {
    margin-left: 20px;
}

.consent-text li {
    color: var(--muted-foreground);
    margin-bottom: 4px;
}

.checkbox-container {
    display: flex;
    align-items: flex-start;
    gap: 15px;
    margin-bottom: 15px;
    cursor: pointer;
    padding: 15px;
    border: 2px solid var(--border);
    border-radius: 12px;
    background: var(--background);
    transition: all 0.3s ease;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    position: relative;
}

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

.checkbox-container input[type="checkbox"] {
    transform: scale(1.2);
    accent-color: var(--primary);
}

.checkbox-container label {
    font-weight: 500;
    color: var(--foreground);
}

/* ── Form sections ───────────────────────────────────── */
.form-section {
    margin-bottom: 25px;
    padding: 20px 15px;
    border: 1px solid var(--border);
    border-radius: 12px;
    background: var(--card);
    transition: background-color 0.3s ease, border-color 0.3s ease;
}

.form-section h3 {
    color: var(--foreground);
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--border);
    font-size: 1.1em;
}

.form-row {
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin-bottom: 20px;
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group label {
    font-weight: 600;
    color: var(--muted-foreground);
    margin-bottom: 8px;
    font-size: 0.95em;
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 15px 12px;
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 16px;
    transition: all 0.3s ease;
    background: var(--background);
    color: var(--foreground);
    min-height: 52px;
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
}

.form-group input[type="datetime-local"] {
    color-scheme: light;
}

.form-group input[type="date"],
.form-group input[type="time"] {
    color-scheme: light;
    -webkit-appearance: auto !important;
    -moz-appearance: auto !important;
    appearance: auto !important;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--muted-foreground);
    opacity: 0.6;
}

.form-group select option {
    background: var(--background);
    color: var(--foreground);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(0, 0, 0, 0.05);
}

/* ── Radio items ─────────────────────────────────────── */
.radio-group {
    display: flex;
    flex-direction: column;
    gap: 15px;
    margin-top: 10px;
}

.radio-item {
    display: flex;
    align-items: flex-start;
    gap: 15px;
    margin-bottom: 15px;
    cursor: pointer;
    padding: 15px;
    border: 1px solid var(--border);
    border-radius: 12px;
    background: var(--background);
    transition: all 0.3s ease;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    position: relative;
}

.radio-item:hover {
    border-color: var(--primary);
    background-color: var(--card);
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
}

.radio-item input[type="radio"] {
    display: none;
}

.radio-item::before {
    content: "";
    width: 20px;
    height: 20px;
    border: 2px solid var(--border);
    border-radius: 4px;
    background: var(--card);
    transition: all 0.3s ease;
    flex-shrink: 0;
    margin-top: 2px;
}

.radio-item label {
    font-weight: 500;
    color: var(--foreground);
    font-size: 0.95em;
    line-height: 1.4;
    cursor: pointer;
    flex: 1;
    margin: 0;
}

.radio-item:has(input[type="radio"]:checked) {
    border-color: var(--primary);
    background: var(--background);
}

.radio-item:has(input[type="radio"]:checked)::before {
    background: var(--primary);
    border-color: var(--primary);
}

.radio-item:has(input[type="radio"]:checked)::after {
    content: "✓";
    position: absolute;
    left: 19px;
    top: 19px;
    color: var(--primary-foreground);
    font-weight: bold;
    font-size: 14px;
}

/* ── Checkbox grid ───────────────────────────────────── */
.checkbox-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 10px;
    margin-top: 10px;
}

.checkbox-item {
    position: relative;
    padding-left: 40px !important;
    padding: 15px;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--background);
    cursor: pointer;
    transition: all 0.3s ease;
}

.checkbox-item input[type="checkbox"] {
    position: absolute;
    left: 10px;
    top: 50%;
    transform: translateY(-50%);
    cursor: pointer;
    accent-color: var(--primary);
}

.checkbox-item label {
    cursor: pointer;
    display: block;
    width: 100%;
    color: var(--foreground);
    margin: 0;
    font-weight: 500;
}

.checkbox-item:has(input[type="checkbox"]:checked) {
    border-color: var(--primary);
    background-color: var(--background);
}

.checkbox-item.selected {
    border: 1px solid var(--primary);
    background-color: var(--background);
    border-radius: 8px;
}

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

/* ── Photo upload ────────────────────────────────────── */
.photo-upload {
    border: 2px dashed var(--border);
    border-radius: 10px;
    padding: 30px;
    text-align: center;
    transition: all 0.3s ease;
    cursor: pointer;
    background: var(--background);
    color: var(--muted-foreground);
    display: block;
    width: 100%;
}

.photo-upload:hover {
    border-color: var(--primary);
    background-color: var(--card);
}

.photo-upload input[type="file"] {
    display: none;
}

.photo-preview {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 15px;
    margin-top: 20px;
}

.photo-item {
    position: relative;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
    background: var(--card);
}

.photo-item img {
    width: 100%;
    height: 120px;
    object-fit: cover;
}

.photo-remove {
    position: absolute;
    top: 5px;
    right: 5px;
    background: #ef4444;
    color: white;
    border: none;
    border-radius: 50%;
    width: 25px;
    height: 25px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* ── Submit button ───────────────────────────────────── */
.submit-btn {
    background: var(--secondary);
    color: var(--secondary-foreground);
    padding: 18px 25px;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 1px;
    width: 100%;
    min-height: 56px;
    margin-top: 20px;
}

.submit-btn:hover {
    opacity: 0.9;
    transform: translateY(-2px);
}

.submit-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
    transform: none;
}

/* ── Loading ─────────────────────────────────────────── */
.loading {
    display: none;
    text-align: center;
    padding: 30px 20px;
    background: var(--background);
    color: var(--muted-foreground);
}

.spinner {
    border: 4px solid var(--border);
    border-top: 4px solid var(--primary);
    border-radius: 50%;
    width: 50px;
    height: 50px;
    animation: spin 1s linear infinite;
    margin: 0 auto 20px;
}

@keyframes spin {
    0%   { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* ── Success / Error messages ────────────────────────── */
.success-message {
    font-size: 1em;
    display: none;
    background: var(--background);
    color: var(--primary);
    padding: 25px 20px;
    border-radius: 12px;
    border: 1px solid var(--border);
    text-align: center;
    margin-top: 20px;
}

.success-message h3 {
    font-size: 1.3em;
    line-height: 1.4;
    margin-bottom: 10px;
    font-weight: 600;
    color: var(--primary);
}

.success-message p {
    font-size: 1em;
    line-height: 1.4;
    margin: 0;
    color: var(--muted-foreground);
}

.error-message {
    font-size: 1em;
    display: none;
    background: var(--background);
    color: var(--foreground);
    padding: 25px 20px;
    border-radius: 12px;
    border: 1px solid var(--border);
    text-align: center;
    margin-top: 20px;
}

.error-message h3 {
    font-size: 1.3em;
    line-height: 1.4;
    margin-bottom: 10px;
    font-weight: 600;
    color: #ef4444;
}

.error-message p {
    font-size: 1em;
    line-height: 1.4;
    margin: 0;
    color: var(--muted-foreground);
}

/* ── RTL support ─────────────────────────────────────── */
.rtl {
    direction: rtl;
    text-align: right;
}

/* ── Focus states ────────────────────────────────────── */
.radio-item:active,
.checkbox-item:active,
.checkbox-container:active { transform: translateY(0); }

.radio-item:focus-within,
.checkbox-item:focus-within,
.checkbox-container:focus-within {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

/* ── Desktop ─────────────────────────────────────────── */
@media (min-width: 769px) {
    .form-content {
        padding: 30px;
        max-width: 800px;
        margin: 0 auto;
    }

    .form-row {
        flex-direction: row;
        gap: 30px;
    }

    .form-group { flex: 1; }

    .radio-group {
        flex-direction: row;
        flex-wrap: wrap;
    }

    .checkbox-grid {
        grid-template-columns: repeat(1, 1fr);
        gap: 15px;
    }

    .submit-btn {
        width: auto;
        min-width: 300px;
        margin: 20px auto;
        display: block;
    }

    /* Large screens */
    @media (min-width: 1024px) {
        .header { padding: 40px 30px; }
        .header h1 { font-size: 2.5em; }
        .form-content { padding: 40px; }
        .form-section { padding: 30px; }
    }
}

/* ── Mobile ──────────────────────────────────────────── */
@media (max-width: 480px) {
    .header { padding: 20px 10px; }
    .header h1 { font-size: 1.5em; }
    .header p  { font-size: 0.85em; }
    .form-content { padding: 10px; }
    .form-section { padding: 15px 10px; margin-bottom: 20px; }
    .consent-section { padding: 15px 10px; }
}