/* === Variables === */
:root {
    --color-primary: #2b6cb0;
    --color-primary-dark: #1e4e8c;
    --color-secondary: #718096;
    --color-bg: #f7fafc;
    --color-card: #ffffff;
    --color-text: #1a202c;
    --color-border: #e2e8f0;
    --color-error: #c53030;

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

    --radius: 0.5rem;
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.1);

    --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

/* === Reset minimal === */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: var(--font-family);
    color: var(--color-text);
    background: var(--color-bg);
    line-height: 1.6;
}

h1 { font-size: 1.75rem; margin-bottom: var(--space-md); }
h2 { font-size: 1.35rem; margin: var(--space-lg) 0 var(--space-sm); }
h3 { font-size: 1.1rem; margin-bottom: var(--space-sm); }
p  { margin-bottom: var(--space-md); }

/* === Layout 2 colonnes === */
.layout {
    display: grid;
    grid-template-columns: 1fr var(--picto-panel-width, 320px);
    min-height: 100vh;
    transition: grid-template-columns 0.25s ease;
}

/* Permet d'étendre le layout quand sidebar désactivée */
.layout.no-sidebar {
    grid-template-columns: 1fr;
}


.main-content {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.content-wrapper {
    flex: 1;
    padding: var(--space-xl);
    max-width: 900px;
    margin: 0 auto;
    width: 100%;
}

/* === Cartes & sections === */
section { margin-bottom: var(--space-xl); }

.example-card,
.phrase-card,
.context-card,
.translation-card {
    background: var(--color-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: var(--space-lg);
    margin-bottom: var(--space-md);
    box-shadow: var(--shadow);
}

.instruction {
    background: #ebf8ff;
    border-left: 4px solid var(--color-primary);
    padding: var(--space-md);
    border-radius: var(--radius);
}

/* === Formulaires === */
.form-group {
    margin-bottom: var(--space-lg);
}

.form-group label {
    display: block;
    font-weight: 600;
    margin-bottom: var(--space-sm);
}

input[type="text"],
select {
    width: 100%;
    padding: var(--space-sm) var(--space-md);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    font-size: 1rem;
    background: white;
}

.radio-option {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm);
    cursor: pointer;
    font-weight: normal;
}

.radio-option input { margin: 0; }

/* === Boutons === */
.btn {
    display: inline-block;
    padding: var(--space-sm) var(--space-lg);
    border: none;
    border-radius: var(--radius);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.15s ease;
    text-decoration: none;
    font-family: inherit;
    line-height: 1.5;
    box-sizing: border-box;
}

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

.btn-secondary {
    background: var(--color-secondary);
    color: white;
}
.btn-secondary:hover { background: #5a6878; }

.btn-large {
    padding: var(--space-md) var(--space-xl);
    font-size: 1.1rem;
}

.btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

/* === Navigation bas de page === */
.nav-form {
    border-top: 1px solid var(--color-border);
    background: var(--color-card);
    padding: var(--space-md) var(--space-xl);
}

.nav-container {
    display: grid;
    grid-template-columns: 1fr 2fr 1fr;
    align-items: center;
    gap: var(--space-md);
    max-width: 900px;
    margin: 0 auto;
}
.nav-container .progress-text {
    text-align: center;
    grid-column: 2;
    margin: 0 0;
}

.nav-container .btn:last-child { justify-self: end; grid-column: 3;}
.nav-container .btn:first-child { justify-self: start; }

/* === Séquences de pictogrammes === */
.picto-sequence {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-md);
    padding: var(--space-md);
    background: #fafafa;
    border-radius: var(--radius);
}

.picto-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    width: 80px;
    text-align: center;
}

.picto-item img {
    width: 64px;
    height: 64px;
    object-fit: contain;
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    background: white;
}

.picto-label {
    font-size: 0.75rem;
    color: var(--color-secondary);
    margin-top: var(--space-xs);
}

/* === Messages d'erreur === */
.error-message {
    color: var(--color-error);
    background: #fff5f5;
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius);
    border-left: 4px solid var(--color-error);
}

/* === Responsive === */
@media (max-width: 900px) {
    .layout { grid-template-columns: 1fr; }
    .nav-container { grid-template-columns: 1fr 1fr; }
    .nav-container .progress-container { grid-column: 1 / -1; order: -1; }
}