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

:root {
    --primary: #1a56db;
    --primary-dark: #1241b3;
    --success: #0e9f6e;
    --error: #e02424;
    --bg: #f9fafb;
    --card: #ffffff;
    --border: #d1d5db;
    --text: #111827;
    --muted: #6b7280;
    --radius: 8px;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    padding: 24px 16px 48px;
}

.container {
    max-width: 780px;
    margin: 0 auto;
}

header {
    text-align: center;
    margin-bottom: 32px;
}

header h1 {
    font-size: 1.6rem;
    color: var(--primary);
    margin-bottom: 8px;
}

header p { color: var(--muted); }

.form-section {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px;
    margin-bottom: 20px;
}

.form-section h2 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--primary);
    border-bottom: 1px solid var(--border);
    padding-bottom: 10px;
    margin-bottom: 20px;
}

.section-desc { color: var(--muted); font-size: 0.875rem; margin-bottom: 16px; }

.form-row {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.form-group {
    display: flex;
    flex-direction: column;
    flex: 1;
    min-width: 180px;
    margin-bottom: 16px;
}

.form-group.flex-3 { flex: 3; }
.form-group.flex-1 { flex: 1; min-width: 80px; }

label {
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: 6px;
    color: var(--text);
}

input[type="text"],
input[type="email"],
input[type="password"],
input[type="tel"] {
    box-sizing: border-box;
    -webkit-appearance: none;
    appearance: none;
    height: 42px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 10px 12px;
    font-size: 0.95rem;
    width: 100%;
    transition: border-color 0.2s, box-shadow 0.2s;
    background: #fff;
}

input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(26,86,219,0.12);
}

.has-error input,
.has-error .upload-area {
    border-color: var(--error);
}

span.error {
    color: var(--error);
    font-size: 0.8rem;
    margin-top: 4px;
}

/* Upload */
.upload-group { min-width: 200px; }

.upload-area {
    border: 2px dashed var(--border);
    border-radius: var(--radius);
    padding: 24px 16px;
    text-align: center;
    cursor: pointer;
    transition: border-color 0.2s, background 0.2s;
    position: relative;
    overflow: hidden;
    min-height: 140px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.upload-area:hover, .upload-area.drag-over {
    border-color: var(--primary);
    background: rgba(26,86,219,0.04);
}

.upload-area input[type="file"] {
    position: absolute;
    inset: 0;
    opacity: 0;
    cursor: pointer;
    width: 100%;
    height: 100%;
}

.upload-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: var(--muted);
    pointer-events: none;
}

.upload-placeholder svg { color: var(--border); }
.upload-placeholder span { font-size: 0.85rem; }

.preview {
    display: none;
    max-width: 100%;
    max-height: 160px;
    border-radius: 4px;
    object-fit: contain;
}

/* Buttons */
.form-actions {
    text-align: center;
    margin-top: 8px;
}

.btn-submit {
    background: var(--primary);
    color: #fff;
    border: none;
    border-radius: var(--radius);
    padding: 14px 40px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s;
    width: 100%;
    max-width: 360px;
}

.btn-submit:hover { background: var(--primary-dark); }
.btn-submit:disabled { opacity: 0.7; cursor: not-allowed; }

/* Alerts */
.alert {
    padding: 16px 20px;
    border-radius: var(--radius);
    margin-bottom: 24px;
    font-size: 0.95rem;
}

.alert-success {
    background: #ecfdf5;
    border: 1px solid #6ee7b7;
    color: #065f46;
}

.alert-error {
    background: #fef2f2;
    border: 1px solid #fca5a5;
    color: #991b1b;
}

/* Admin table */
.admin-table { width: 100%; border-collapse: collapse; font-size: 0.875rem; }
.admin-table th, .admin-table td { padding: 10px 14px; border-bottom: 1px solid var(--border); text-align: left; }
.admin-table th { background: var(--bg); font-weight: 600; }
.admin-table tr:hover td { background: #f3f4f6; }
.badge { background: #e0edff; color: var(--primary); padding: 2px 8px; border-radius: 999px; font-size: 0.75rem; }

@media (max-width: 540px) {
    .form-row { flex-direction: column; }
    .form-group.flex-3, .form-group.flex-1 { flex: 1; min-width: 100%; }
}

select {
    box-sizing: border-box;
    height: 42px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 10px 12px;
    font-size: 0.95rem;
    width: 100%;
    background: #fff;
    transition: border-color 0.2s, box-shadow 0.2s;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%236b7280' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 10px center;
    padding-right: 32px;
}
select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(26,86,219,0.12);
}
.has-error select { border-color: var(--error); }

/* Occupants */
.btn-add-ocupante {
    background: none;
    border: 1px dashed var(--primary);
    color: var(--primary);
    border-radius: var(--radius);
    padding: 8px 20px;
    font-size: 0.875rem;
    cursor: pointer;
    margin-top: 4px;
    transition: background 0.2s;
}
.btn-add-ocupante:hover { background: rgba(26,86,219,0.06); }

.ocupante-row {
    display: flex;
    gap: 12px;
    align-items: flex-end;
    margin-bottom: 12px;
    flex-wrap: wrap;
}
.ocupante-row .form-group { margin-bottom: 0; }
.btn-remove-ocupante {
    background: none;
    border: none;
    color: var(--error);
    cursor: pointer;
    font-size: 1.2rem;
    padding: 8px 4px;
    line-height: 1;
    flex-shrink: 0;
    align-self: flex-end;
    margin-bottom: 2px;
}