/*
 * Convenção Autárquica CHEGA - Questões
 * Design: Minimal Institutional (matching autarquicas.partidochega.pt)
 */

/* CSS Custom Properties */
:root {
    /* Brand Colors - CHEGA */
    --primary-blue: #003087;
    --primary-blue-dark: #001a4d;
    --primary-blue-light: #0047AB;

    /* Neutrals */
    --white: #FFFFFF;
    --off-white: #FAFAFA;
    --light-gray: #F5F5F5;
    --medium-gray: #E5E5E5;
    --border-gray: #D4D4D4;
    --text-gray: #6B7280;
    --text-dark: #1F2937;
    --black: #000000;

    /* Semantic */
    --error-red: #DC2626;
    --error-bg: #FEF2F2;
    --success-green: #16A34A;
    --success-bg: #F0FDF4;
    --info-blue: #0284C7;
    --info-bg: #F0F9FF;

    /* Typography */
    --font-family: system-ui, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif, 'Apple Color Emoji', 'Segoe UI Emoji';

    /* Spacing */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;

    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
}

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

html {
    font-size: 20px;
}

/* Base Body */
body {
    font-family: var(--font-family);
    font-weight: 400;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--light-gray);
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Container */
.container {
    max-width: 640px;
    margin: 0 auto;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    background-color: var(--white);
}

@media (min-width: 641px) {
    .container {
        margin: var(--space-lg) auto;
        min-height: auto;
        border-radius: var(--radius-lg);
        box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
    }
}

/* Header */
.header {
    background-color: var(--primary-blue);
    color: var(--white);
    padding: var(--space-md);
    text-align: center;
}

@media (min-width: 641px) {
    .header {
        border-radius: var(--radius-lg) var(--radius-lg) 0 0;
    }
}

.logo {
    max-width: 40px;
    height: auto;
    margin-bottom: var(--space-xs);
}

.header h1 {
    font-size: 1.125rem;
    font-weight: 600;
    letter-spacing: -0.01em;
    line-height: 1.4;
    margin-bottom: var(--space-xs);
}

.header-subtitle {
    font-size: 1.6875rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    margin: 0;
}

/* Main Content */
.main {
    flex: 1;
    padding: var(--space-md);
}

/* Alerts */
.alert {
    padding: var(--space-md);
    border-radius: var(--radius-md);
    margin-bottom: var(--space-lg);
    font-size: 0.875rem;
    font-weight: 500;
    border: 1px solid transparent;
}

.alert-error {
    background-color: var(--error-bg);
    color: var(--error-red);
    border-color: rgba(220, 38, 38, 0.2);
}

.alert-info {
    background-color: var(--info-bg);
    color: var(--info-blue);
    border-color: rgba(2, 132, 199, 0.2);
}

.alert-success {
    background-color: var(--success-bg);
    color: var(--success-green);
    border-color: rgba(22, 163, 74, 0.2);
}

/* Form Styles */
.form {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

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

.form-group label {
    font-weight: 500;
    font-size: 0.875rem;
    color: var(--text-dark);
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 0.75rem var(--space-md);
    font-family: var(--font-family);
    font-size: 1rem;
    color: var(--text-dark);
    background: var(--white);
    border: 1px solid var(--border-gray);
    border-radius: var(--radius-md);
    transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

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

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 3px rgba(0, 48, 135, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
    line-height: 1.5;
}

.char-count {
    text-align: right;
    color: var(--text-gray);
    font-size: 0.75rem;
}

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

.form-group select {
    cursor: pointer;
    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' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right var(--space-md) center;
    padding-right: 2.5rem;
}

/* Buttons */
.form-actions {
    display: flex;
    justify-content: flex-end;
    gap: var(--space-sm);
    margin-top: var(--space-xs);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem var(--space-lg);
    font-family: var(--font-family);
    font-size: 0.9375rem;
    font-weight: 500;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    text-decoration: none;
    transition: background-color 0.15s ease, transform 0.1s ease;
}

.btn-primary {
    background-color: var(--primary-blue);
    color: var(--white);
}

.btn-primary:hover {
    background-color: var(--primary-blue-dark);
}

.btn-primary:active {
    transform: scale(0.98);
}

.btn-secondary {
    background-color: var(--white);
    color: var(--primary-blue);
    border: 1px solid var(--primary-blue);
}

.btn-secondary:hover {
    background-color: var(--primary-blue);
    color: var(--white);
}

/* Error Box */
.error-box {
    text-align: center;
    padding: var(--space-xl) var(--space-lg);
}

.error-icon {
    width: 64px;
    height: 64px;
    background-color: var(--error-red);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    font-weight: 700;
    margin: 0 auto var(--space-lg);
}

.error-message {
    font-size: 1rem;
    font-weight: 500;
    color: var(--text-dark);
    line-height: 1.5;
}

/* Success Box */
.success-box {
    text-align: center;
    padding: var(--space-lg);
    background-color: var(--success-bg);
    border-radius: var(--radius-md);
    margin-bottom: var(--space-lg);
    border: 1px solid rgba(22, 163, 74, 0.2);
}

.success-icon {
    width: 64px;
    height: 64px;
    background-color: var(--success-green);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
    margin: 0 auto var(--space-md);
}

.success-box h2 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--success-green);
    margin-bottom: var(--space-xs);
}

.success-box p {
    color: var(--text-gray);
    font-size: 0.9375rem;
}

.success-box .info {
    margin-top: var(--space-md);
    padding-top: var(--space-md);
    border-top: 1px solid rgba(22, 163, 74, 0.2);
    font-size: 0.8125rem;
    color: var(--text-gray);
}

.success-box .info strong {
    color: var(--text-dark);
}

/* Summary */
.summary {
    background-color: var(--off-white);
    padding: var(--space-lg);
    border-radius: var(--radius-md);
    margin-bottom: var(--space-lg);
    border: 1px solid var(--medium-gray);
}

.summary h3 {
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--primary-blue);
    margin-bottom: var(--space-md);
    padding-bottom: var(--space-sm);
    border-bottom: 2px solid var(--primary-blue);
    display: inline-block;
}

.summary dl {
    display: grid;
    grid-template-columns: 120px 1fr;
    gap: var(--space-sm) var(--space-md);
    font-size: 0.875rem;
}

.summary dt {
    font-weight: 500;
    color: var(--text-gray);
}

.summary dd {
    color: var(--text-dark);
    word-break: break-word;
}

.summary.readonly {
    background-color: var(--info-bg);
    border-color: rgba(2, 132, 199, 0.2);
}

/* Footer */
.footer {
    background-color: var(--primary-blue-dark);
    color: var(--white);
    text-align: center;
    padding: var(--space-lg);
    font-size: 0.8125rem;
}

@media (min-width: 641px) {
    .footer {
        border-radius: 0 0 var(--radius-lg) var(--radius-lg);
    }
}

.footer p {
    opacity: 0.9;
    margin-bottom: var(--space-xs);
}

.footer p:last-child {
    margin-bottom: 0;
}

.footer a {
    color: var(--white);
    text-decoration: none;
    opacity: 0.8;
    transition: opacity 0.15s ease;
}

.footer a:hover {
    opacity: 1;
    text-decoration: underline;
}

/* Responsive */
@media (max-width: 640px) {
    .header {
        padding: var(--space-md);
    }

    .header h1 {
        font-size: 1rem;
    }

    .logo {
        max-width: 48px;
    }

    .main {
        padding: var(--space-md);
    }

    .form-actions {
        flex-direction: column;
    }

    .btn {
        width: 100%;
    }

    .summary dl {
        grid-template-columns: 1fr;
        gap: var(--space-xs);
    }

    .summary dt {
        margin-top: var(--space-sm);
        font-size: 0.75rem;
        text-transform: uppercase;
        letter-spacing: 0.03em;
    }

    .error-box,
    .success-box {
        padding: var(--space-lg);
    }

    .error-icon,
    .success-icon {
        width: 56px;
        height: 56px;
        font-size: 1.5rem;
    }
}

/* Print styles */
@media print {
    .container {
        box-shadow: none;
    }

    .btn {
        display: none;
    }
}