/* Présentation « Calculs au quotidien » — aligné sur apps/math */

:root {
    --kid-sun: #ffc93c;
    --kid-coral: #ff7b6e;
    --kid-mint: #3dd9a5;
    --kid-sky: #4ec4ff;
    --kid-lilac: #a78bfa;
    --kid-grape: #7c3aed;
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.25rem;
    --spacing-xl: 1.75rem;
    --spacing-2xl: 2.5rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-xxl: 1.5rem;
    --font-size-xxxl: clamp(1.75rem, 4vw, 2.25rem);
    --radius-lg: 1.1rem;
    --radius-xl: 1.25rem;
    --transition: 0.2s ease;
}

body.pres-caq {
    min-height: 100vh;
    background-color: #f8f4ff;
    background-image:
        linear-gradient(165deg, rgba(255, 252, 248, 0.92) 0%, rgba(232, 250, 255, 0.88) 45%, rgba(255, 245, 252, 0.9) 100%),
        url("../../apps/math/fond.jpg");
    background-position: center, center;
    background-size: auto, cover;
    background-repeat: no-repeat, no-repeat;
    background-attachment: scroll, fixed;
}

@media (max-width: 768px) {
    body.pres-caq {
        background-attachment: scroll, scroll;
    }
}

.pres-caq main {
    position: relative;
    z-index: 1;
    padding-bottom: var(--spacing-2xl);
}

.pres-caq .wrap {
    max-width: 880px;
    margin: 0 auto;
    padding: var(--spacing-lg);
}

/* Introduction légère (plus de grand encart « hero ») : flux de lecture type article */
.pres-caq .page-intro {
    padding: var(--spacing-sm) 0 var(--spacing-md);
    margin-bottom: var(--spacing-md);
    border-bottom: 1px solid rgba(124, 58, 237, 0.2);
}

.pres-caq .page-intro h1 {
    color: #5b21b6;
    font-size: clamp(1.35rem, 4vw, 1.85rem);
    margin: 0 0 var(--spacing-xs) 0;
    line-height: 1.25;
    font-weight: 800;
    letter-spacing: -0.02em;
}

.pres-caq .page-intro .lead {
    font-size: var(--font-size-base);
    line-height: 1.55;
    margin: 0;
    color: #475569;
    max-width: 42rem;
}

.pres-caq .page-intro .toc {
    justify-content: flex-start;
    margin-top: var(--spacing-md);
}

.pres-caq .page-intro .toc a {
    background: rgba(255, 255, 255, 0.75);
}

.pres-caq .cta-row {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    align-items: center;
}

.pres-caq .cta-row--intro {
    margin-top: var(--spacing-md);
    justify-content: flex-start;
}

.pres-caq .btn--compact {
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: var(--font-size-sm);
    font-weight: 700;
}

.pres-caq .shot--lead {
    margin-top: 0;
    margin-bottom: var(--spacing-xl);
}

.pres-caq .btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: var(--font-size-lg);
    font-weight: 800;
    background: linear-gradient(135deg, #22c55e 0%, #14b8a6 100%);
    color: #fff;
    border: none;
    border-radius: 999px;
    text-decoration: none;
    box-shadow: 0 6px 20px rgba(34, 197, 94, 0.35);
    transition: var(--transition);
}

.pres-caq .btn-primary:hover {
    filter: brightness(1.06);
    transform: translateY(-2px);
}

.pres-caq .btn-secondary {
    display: inline-flex;
    align-items: center;
    padding: var(--spacing-md) var(--spacing-lg);
    font-weight: 700;
    background: #fff;
    color: #5b21b6;
    border: 3px solid #c4b5fd;
    border-radius: 999px;
    text-decoration: none;
    transition: var(--transition);
}

.pres-caq .btn-secondary:hover {
    border-color: #8b5cf6;
    transform: scale(1.02);
}

.pres-caq .btn-subscribe {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: var(--font-size-lg);
    font-weight: 800;
    background: linear-gradient(135deg, #8b5cf6 0%, #6366f1 55%, #a855f7 100%);
    color: #fff;
    border: none;
    border-radius: 999px;
    text-decoration: none;
    box-shadow: 0 6px 22px rgba(139, 92, 246, 0.4);
    transition: var(--transition);
}

.pres-caq .btn-subscribe:hover {
    filter: brightness(1.07);
    transform: translateY(-2px);
}

.pres-caq section,
.pres-caq .pres-caq-panel {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    box-shadow: 0 6px 22px rgba(124, 58, 237, 0.12), inset 0 1px 0 rgba(255, 255, 255, 0.75);
    margin-bottom: var(--spacing-xl);
    border-left: 6px solid var(--kid-sky);
}

.pres-caq .pres-caq-content .pres-caq-panel {
    margin-bottom: 0;
}

.pres-caq section.border-coral,
.pres-caq .pres-caq-panel.border-coral { border-left-color: var(--kid-coral); }

.pres-caq section.border-orange,
.pres-caq .pres-caq-panel.border-orange { border-left-color: #ff9f43; }

.pres-caq section.border-mint,
.pres-caq .pres-caq-panel.border-mint { border-left-color: var(--kid-mint); }

.pres-caq section.border-lilac,
.pres-caq .pres-caq-panel.border-lilac { border-left-color: var(--kid-lilac); }

.pres-caq section.border-sun,
.pres-caq .pres-caq-panel.border-sun { border-left-color: var(--kid-sun); }

.pres-caq section h2,
.pres-caq .pres-caq-panel h1 {
    color: #5b21b6;
    font-size: var(--font-size-xxl);
    margin: 0 0 var(--spacing-md) 0;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.pres-caq section h3,
.pres-caq .pres-caq-panel h2 {
    color: #4338ca;
    font-size: var(--font-size-xl);
    margin: var(--spacing-lg) 0 var(--spacing-sm) 0;
}

.pres-caq section p,
.pres-caq section li,
.pres-caq .pres-caq-panel p,
.pres-caq .pres-caq-panel li {
    color: #334155;
    line-height: 1.6;
    font-size: var(--font-size-base);
}

.pres-caq section ul,
.pres-caq .pres-caq-panel ul {
    margin: var(--spacing-md) 0;
    padding-left: 1.25rem;
}

.pres-caq section li + li,
.pres-caq .pres-caq-panel li + li {
    margin-top: var(--spacing-xs);
}

.pres-caq .note {
    margin-top: var(--spacing-md);
    padding: var(--spacing-md);
    background: linear-gradient(135deg, rgba(167, 139, 250, 0.12) 0%, rgba(78, 196, 255, 0.12) 100%);
    border-radius: var(--radius-lg);
    border: 2px solid rgba(124, 58, 237, 0.2);
    font-size: var(--font-size-sm);
}

.pres-caq .note strong {
    color: #5b21b6;
}

.pres-caq .shot {
    margin: var(--spacing-lg) 0 0 0;
    border-radius: 0.75rem;
    overflow: hidden;
    border: 3px solid #e9d5ff;
    box-shadow: 0 8px 28px rgba(91, 33, 182, 0.15);
    background: #fff;
}

.pres-caq .shot img {
    display: block;
    width: 100%;
    height: auto;
}

.pres-caq figcaption {
    font-size: var(--font-size-sm);
    color: #64748b;
    margin-top: var(--spacing-sm);
    text-align: center;
    font-style: italic;
}

.pres-caq .grid-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-lg);
}

@media (max-width: 640px) {
    .pres-caq .grid-2 {
        grid-template-columns: 1fr;
    }
}

.pres-caq .card-mode {
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    border: 3px solid #c4b5fd;
    background: rgba(255, 255, 255, 0.85);
}

.pres-caq .card-mode h3 {
    margin: 0 0 var(--spacing-sm) 0;
    color: #4338ca;
    font-size: var(--font-size-xl);
    display: flex;
    align-items: center;
    gap: 0.35rem;
}

.pres-caq .card-mode.chrono {
    border-color: #ff9f43;
}

.pres-caq .card-mode.count {
    border-color: var(--kid-mint);
}

.pres-caq .topics {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
    list-style: none;
    padding: 0;
}

.pres-caq .topics li {
    padding: var(--spacing-sm) var(--spacing-md);
    background: linear-gradient(180deg, #fff 0%, #f8fafc 100%);
    border: 2px solid var(--border-dark, #cbd5e1);
    border-radius: 999px;
    text-align: center;
    font-weight: 700;
    color: #5b21b6;
    font-size: var(--font-size-sm);
}

.pres-caq .step-list {
    counter-reset: step;
    list-style: none;
    padding: 0;
    margin: var(--spacing-lg) 0 0 0;
}

.pres-caq .step-list li {
    position: relative;
    padding-left: 3rem;
    margin-bottom: var(--spacing-lg);
    counter-increment: step;
}

.pres-caq .step-list li::before {
    content: counter(step);
    position: absolute;
    left: 0;
    top: 0;
    width: 2.25rem;
    height: 2.25rem;
    line-height: 2.25rem;
    text-align: center;
    font-weight: 800;
    font-size: var(--font-size-sm);
    color: #fff;
    background: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
    border-radius: 50%;
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.35);
}

.pres-caq .toc {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    justify-content: flex-start;
    margin-top: var(--spacing-md);
}

.pres-caq .toc a {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: #5b21b6;
    text-decoration: none;
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.9);
    border: 2px solid #c4b5fd;
    transition: var(--transition);
}

.pres-caq .toc a:hover {
    background: var(--kid-sun);
    border-color: var(--kid-sun);
    color: #422006;
}

/* --- Hub + sous-pages (menu latéral) --- */
.pres-caq-main {
    padding-top: var(--spacing-sm);
}

.pres-caq-wrap--with-nav {
    max-width: 1100px;
}

.pres-caq-columns {
    display: grid;
    grid-template-columns: minmax(200px, 240px) minmax(0, 1fr);
    gap: var(--spacing-xl);
    align-items: start;
}

@media (max-width: 900px) {
    .pres-caq-columns {
        grid-template-columns: 1fr;
    }
}

.pres-caq-aside {
    position: sticky;
    top: 4.75rem;
    z-index: 2;
}

@media (max-width: 900px) {
    .pres-caq-aside {
        position: static;
    }
}

.pres-caq-nav__title {
    font-size: var(--font-size-sm);
    font-weight: 800;
    color: #5b21b6;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    margin: 0 0 var(--spacing-sm) 0;
}

.pres-caq-nav__list {
    list-style: none;
    margin: 0;
    padding: 0;
}

.pres-caq-nav__list li + li {
    margin-top: var(--spacing-xs);
}

.pres-caq-nav__link {
    display: flex;
    gap: var(--spacing-sm);
    align-items: flex-start;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    text-decoration: none;
    color: #334155;
    border: 2px solid transparent;
    background: rgba(255, 255, 255, 0.65);
    transition: var(--transition);
}

.pres-caq-nav__link:hover {
    border-color: #c4b5fd;
    background: rgba(255, 255, 255, 0.95);
}

.pres-caq-nav__link.is-active {
    border-color: var(--kid-sun);
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.98) 0%, rgba(255, 248, 220, 0.9) 100%);
    color: #5b21b6;
}

.pres-caq-nav__emoji {
    font-size: 1.25rem;
    line-height: 1.2;
    flex-shrink: 0;
}

.pres-caq-nav__link-text {
    display: flex;
    flex-direction: column;
    gap: 0.1rem;
    min-width: 0;
}

.pres-caq-nav__link-label {
    font-weight: 700;
    font-size: var(--font-size-sm);
    color: inherit;
}

.pres-caq-nav__link-short {
    font-size: 0.75rem;
    color: #64748b;
    line-height: 1.3;
    font-weight: 500;
}

.pres-caq-nav__link.is-active .pres-caq-nav__link-short {
    color: #5b21b6;
    opacity: 0.85;
}

.pres-caq-home-heading {
    color: #5b21b6;
    font-size: var(--font-size-xl);
    margin: var(--spacing-xl) 0 var(--spacing-xs) 0;
}

.pres-caq-home-lead {
    margin: 0 0 var(--spacing-md) 0;
    color: #475569;
    font-size: var(--font-size-base);
}

.pres-caq-home-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: var(--spacing-md);
    margin: 0 0 var(--spacing-xl) 0;
}

.pres-caq-home-card {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    border: 2px solid #c4b5fd;
    background: rgba(255, 255, 255, 0.88);
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
    box-shadow: 0 4px 14px rgba(124, 58, 237, 0.08);
}

.pres-caq-home-card:hover {
    border-color: var(--kid-sun);
    transform: translateY(-3px);
    box-shadow: 0 8px 24px rgba(255, 159, 67, 0.2);
}

.pres-caq-home-card__emoji {
    font-size: 1.75rem;
    line-height: 1;
}

.pres-caq-home-card__title {
    font-weight: 800;
    font-size: var(--font-size-base);
    color: #5b21b6;
}

.pres-caq-home-card__short {
    font-size: var(--font-size-sm);
    color: #64748b;
    line-height: 1.4;
}

.pres-caq-back {
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-md);
    border-top: 1px solid rgba(124, 58, 237, 0.15);
    font-size: var(--font-size-sm);
}

.pres-caq-back a {
    color: #5b21b6;
    font-weight: 700;
    text-decoration: none;
}

.pres-caq-back a:hover {
    text-decoration: underline;
}