/* Theme tokens mirror MonParcoursTrans/DesignSystem/Theme/AppColors.swift
   so the website stays visually aligned with the app on both light and
   dark appearances. */

:root {
    --background:       #F7F8FA;
    --surface:          #FFFFFF;
    --surface-variant:  #EEF1F4;
    --primary:          #6B8CAE;
    --primary-muted:    #9BB2C9;
    --secondary:        #D8CBB5;
    --text-primary:     #1F2630;
    --text-secondary:   #5C6573;
    --separator:        #DDE2E8;

    --radius-card:      18px;
    --radius-pill:      999px;
    --shadow-card:      0 1px 2px rgba(31, 38, 48, 0.04),
                        0 12px 32px rgba(31, 38, 48, 0.06);
}

@media (prefers-color-scheme: dark) {
    :root {
        --background:       #16181F;
        --surface:          #1F252E;
        --surface-variant:  #28303B;
        --primary:          #8FA8C2;
        --primary-muted:    #5F758D;
        --secondary:        #BFB196;
        --text-primary:     #E9ECF1;
        --text-secondary:   #9FA7B2;
        --separator:        #2D343F;

        --shadow-card:      0 1px 2px rgba(0, 0, 0, 0.25),
                            0 12px 32px rgba(0, 0, 0, 0.45);
    }
}

* {
    box-sizing: border-box;
}

html {
    -webkit-text-size-adjust: 100%;
    text-size-adjust: 100%;
}

body {
    margin: 0;
    background: var(--background);
    color: var(--text-primary);
    font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Helvetica Neue",
                 system-ui, sans-serif;
    font-size: 17px;
    line-height: 1.55;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

a {
    color: var(--primary);
    text-decoration: none;
    border-bottom: 1px solid color-mix(in srgb, var(--primary) 35%, transparent);
    transition: border-color 120ms ease, color 120ms ease;
}

a:hover {
    border-bottom-color: var(--primary);
}

strong {
    font-weight: 600;
    color: var(--text-primary);
}

/* Page chrome ---------------------------------------------------------- */

.page-header {
    padding: 56px 24px 24px;
    text-align: center;
}

.page-header .logo {
    display: inline-block;
    width: 88px;
    height: 88px;
    margin-bottom: 16px;
}

.page-header .brand {
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--text-secondary);
    margin: 0;
}

.page-header .page-title {
    font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Helvetica Neue",
                 system-ui, sans-serif;
    font-size: 34px;
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: -0.02em;
    margin: 6px 0 0;
}

.page-header .page-subtitle {
    color: var(--text-secondary);
    font-size: 15px;
    margin: 8px 0 0;
}

/* Content -------------------------------------------------------------- */

.content {
    max-width: 720px;
    margin: 0 auto;
    padding: 16px 24px 96px;
}

.card {
    background: var(--surface);
    border: 1px solid var(--separator);
    border-radius: var(--radius-card);
    box-shadow: var(--shadow-card);
    padding: 28px 28px 12px;
    margin-top: 24px;
}

.card h2 {
    font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Helvetica Neue",
                 system-ui, sans-serif;
    font-size: 22px;
    font-weight: 600;
    letter-spacing: -0.01em;
    margin: 0 0 12px;
}

.card h3 {
    font-size: 17px;
    font-weight: 600;
    margin: 22px 0 8px;
}

.card p,
.card ul {
    color: var(--text-primary);
    margin: 0 0 16px;
}

.card ul {
    padding-left: 22px;
}

.card li {
    margin-bottom: 6px;
}

.callout {
    background: var(--surface-variant);
    border: 1px solid var(--separator);
    border-radius: 12px;
    padding: 14px 18px;
    color: var(--text-primary);
    font-size: 15px;
    margin: 8px 0 18px;
}

.callout strong {
    color: var(--text-primary);
}

.meta {
    color: var(--text-secondary);
    font-size: 14px;
    margin-top: 6px;
}

/* Index landing -------------------------------------------------------- */

.tile-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 16px;
    margin-top: 24px;
}

@media (min-width: 640px) {
    .tile-grid {
        grid-template-columns: 1fr 1fr;
    }
}

.tile {
    display: block;
    background: var(--surface);
    border: 1px solid var(--separator);
    border-radius: var(--radius-card);
    box-shadow: var(--shadow-card);
    padding: 24px;
    color: var(--text-primary);
    border-bottom: 1px solid var(--separator);
    transition: transform 140ms ease, box-shadow 140ms ease, border-color 140ms ease;
}

.tile:hover {
    transform: translateY(-2px);
    border-color: color-mix(in srgb, var(--primary) 50%, var(--separator));
}

.tile h2 {
    margin: 0 0 6px;
    font-size: 19px;
    font-weight: 600;
}

.tile p {
    margin: 0;
    color: var(--text-secondary);
    font-size: 15px;
}

/* Footer --------------------------------------------------------------- */

.page-footer {
    text-align: center;
    color: var(--text-secondary);
    font-size: 13px;
    padding: 24px 24px 56px;
    border-top: 1px solid var(--separator);
    margin-top: 32px;
}

.page-footer a {
    border-bottom: none;
}

.page-footer a + a {
    margin-left: 16px;
}

/* Back link ------------------------------------------------------------ */

.back {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin: 24px auto 0;
    padding: 8px 16px;
    border-radius: var(--radius-pill);
    background: var(--surface-variant);
    color: var(--text-primary);
    font-size: 14px;
    font-weight: 500;
    border-bottom: none;
    transition: background 140ms ease;
}

.back:hover {
    background: color-mix(in srgb, var(--primary) 14%, var(--surface-variant));
    border-bottom: none;
}

.back-wrapper {
    text-align: center;
    margin-top: 24px;
}