body.presentation-page {
    height: auto;
    min-height: 100vh;
    overflow-x: hidden;
    overflow-y: visible;
    padding-top: var(--presentation-header-height, 4.25rem);
}

.presentation-page {
    min-height: 100vh;
    overflow-x: hidden;
    line-height: 1.6;
}

html:has(body.presentation-page) {
    scroll-behavior: smooth;
}

.presentation-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--border);
    background: rgba(15, 20, 25, 0.92);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    backdrop-filter: blur(8px);
}

.presentation-logo {
    font-size: 1.15rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    color: inherit;
    text-decoration: none;
    flex-shrink: 0;
}

.presentation-logo:hover {
    opacity: 0.9;
}

.presentation-logo span {
    color: var(--accent);
}

.presentation-nav {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    flex-wrap: nowrap;
    overflow-x: auto;
    max-width: min(100%, 52rem);
    scrollbar-width: none;
    -ms-overflow-style: none;
}

.presentation-nav::-webkit-scrollbar {
    display: none;
}

.presentation-nav a {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.88rem;
    padding: 0.35rem 0.55rem;
    border-radius: 6px;
    transition: color 0.15s, background 0.15s;
    flex-shrink: 0;
    white-space: nowrap;
}

.presentation-nav-link.is-active {
    color: var(--accent-hover);
    background: rgba(99, 102, 241, 0.12);
    font-weight: 500;
}

.presentation-nav-link.is-active:hover {
    color: var(--accent-hover);
}

.presentation-section[id],
.presentation-split[id] {
    scroll-margin-top: calc(var(--presentation-header-height, 4.25rem) + 1rem);
}

.presentation-nav-login {
    background: var(--accent);
    color: white !important;
    padding: 0.5rem 1rem;
    border-radius: 8px;
    font-weight: 500;
}

.presentation-nav a:not(.presentation-nav-login):hover {
    color: var(--text);
}

.presentation-nav-login:hover {
    background: var(--accent-hover);
    color: white !important;
}

.presentation-hero {
    max-width: 920px;
    margin: 0 auto;
    padding: 3rem 1.5rem 2rem;
    text-align: center;
}

.presentation-hero-rich {
    position: relative;
    max-width: 960px;
    padding: 4rem 1.5rem 3rem;
}

.presentation-hero-rich::before {
    content: '';
    position: absolute;
    inset: -2rem 10% auto;
    height: 280px;
    background: radial-gradient(ellipse at center, rgba(99, 102, 241, 0.18) 0%, transparent 70%);
    pointer-events: none;
    z-index: -1;
}

.presentation-badge {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--accent-hover);
    background: rgba(99, 102, 241, 0.12);
    border: 1px solid rgba(99, 102, 241, 0.35);
    padding: 0.35rem 0.85rem;
    border-radius: 999px;
    margin-bottom: 1.25rem;
}

.presentation-pills {
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.45rem;
    margin: 0 0 2rem;
    padding: 0;
}

.presentation-pills li {
    font-size: 0.78rem;
    color: var(--text-muted);
    background: var(--surface);
    border: 1px solid var(--border);
    padding: 0.3rem 0.65rem;
    border-radius: 999px;
}

.presentation-cta-row {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.75rem;
    align-items: center;
}

.presentation-cta-outline {
    display: inline-flex;
    align-items: center;
    padding: 0.85rem 1.4rem;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    color: var(--text);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    transition: border-color 0.15s, background 0.15s;
}

.presentation-cta-outline:hover {
    border-color: rgba(99, 102, 241, 0.5);
    background: var(--surface);
    color: var(--text);
}

.presentation-cta-outline-light {
    border-color: rgba(255, 255, 255, 0.25);
    color: white;
}

.presentation-cta-outline-light:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 255, 255, 0.4);
    color: white;
}

.presentation-highlights {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1px;
    max-width: 1100px;
    margin: 0 auto 3rem;
    padding: 0 1.5rem;
    background: var(--border);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
}

.presentation-highlight {
    background: var(--surface);
    padding: 1.1rem 1.25rem;
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.presentation-highlight strong {
    font-size: 0.92rem;
    color: var(--text);
}

.presentation-highlight span {
    font-size: 0.78rem;
    color: var(--text-muted);
    line-height: 1.4;
}

.presentation-section-head {
    margin-bottom: 1.5rem;
}

.presentation-section-head h2 {
    font-size: 1.45rem;
    font-weight: 600;
    margin-bottom: 0.4rem;
}

.presentation-section-head p {
    color: var(--text-muted);
    max-width: 640px;
    margin: 0;
}

.presentation-section-head a {
    color: var(--accent-hover);
}

.presentation-steps {
    list-style: none;
    margin: 0;
    padding: 0;
    display: grid;
    gap: 1rem;
}

.presentation-steps li {
    display: flex;
    gap: 1.15rem;
    align-items: flex-start;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.15rem 1.35rem;
}

.presentation-step-num {
    flex-shrink: 0;
    width: 2.25rem;
    height: 2.25rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(99, 102, 241, 0.15);
    color: var(--accent-hover);
    font-weight: 700;
    font-size: 0.95rem;
    border-radius: 10px;
}

.presentation-steps h3 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 0.35rem;
}

.presentation-steps p {
    font-size: 0.88rem;
    color: var(--text-muted);
    margin: 0;
    line-height: 1.55;
}

.presentation-split {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.25rem;
    margin-bottom: 3.5rem;
}

.presentation-split-panel {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.5rem 1.6rem;
}

.presentation-split-panel-accent {
    border-color: rgba(99, 102, 241, 0.35);
    background: linear-gradient(145deg, rgba(99, 102, 241, 0.08) 0%, var(--surface) 55%);
}

.presentation-split-label {
    font-size: 0.72rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--accent-hover);
    margin-bottom: 0.5rem;
}

.presentation-split-panel h2 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.presentation-split-panel > p {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-bottom: 1rem;
    line-height: 1.55;
}

.presentation-split-panel ul {
    margin: 0 0 1.15rem;
    padding-left: 1.15rem;
    font-size: 0.85rem;
    color: var(--text-muted);
}

.presentation-split-panel li {
    margin-bottom: 0.35rem;
}

.presentation-link {
    font-size: 0.88rem;
    color: var(--accent-hover);
    text-decoration: none;
    font-weight: 500;
}

.presentation-link:hover {
    text-decoration: underline;
}

.presentation-usecases {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
}

.presentation-usecase {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.2rem 1.35rem;
}

.presentation-usecase h3 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 0.45rem;
}

.presentation-usecase p {
    font-size: 0.88rem;
    color: var(--text-muted);
    margin: 0;
    line-height: 1.55;
}

.presentation-usecase code {
    font-size: 0.85em;
    background: rgba(0, 0, 0, 0.25);
    padding: 0.1rem 0.35rem;
    border-radius: 4px;
}

.presentation-grid-compact {
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
}

.presentation-card-compact h3 {
    margin-bottom: 0.35rem;
}

.presentation-faq {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    max-width: 780px;
}

.presentation-faq-item {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
}

.presentation-faq-item summary {
    padding: 0.95rem 1.15rem;
    font-weight: 600;
    font-size: 0.92rem;
    cursor: pointer;
    list-style: none;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
}

.presentation-faq-item summary::-webkit-details-marker {
    display: none;
}

.presentation-faq-item summary::after {
    content: '+';
    color: var(--text-muted);
    font-size: 1.1rem;
    font-weight: 400;
    flex-shrink: 0;
}

.presentation-faq-item[open] summary::after {
    content: '−';
}

.presentation-faq-item p {
    padding: 0 1.15rem 1rem;
    margin: 0;
    font-size: 0.88rem;
    color: var(--text-muted);
    line-height: 1.6;
    border-top: 1px solid var(--border);
    padding-top: 0.85rem;
    margin-top: 0;
}

.presentation-cta-band {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 1.25rem;
    padding: 2rem 2rem;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.25) 0%, rgba(99, 102, 241, 0.08) 100%);
    border: 1px solid rgba(99, 102, 241, 0.35);
    border-radius: var(--radius);
    margin-top: 1rem;
}

.presentation-cta-band h2 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.35rem;
}

.presentation-cta-band p {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin: 0;
    max-width: 480px;
}

.presentation-cta-band-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.65rem;
}

.presentation-footer-rich {
    text-align: left;
    padding: 2.5rem 1.5rem 1.5rem;
}

.presentation-footer-grid {
    max-width: 1100px;
    margin: 0 auto 1.5rem;
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 2rem;
}

.presentation-footer-brand {
    display: block;
    font-size: 1rem;
    margin-bottom: 0.5rem;
    color: var(--text);
}

.presentation-footer-grid p {
    font-size: 0.85rem;
    color: var(--text-muted);
    line-height: 1.5;
    margin: 0;
}

.presentation-footer-grid ul {
    list-style: none;
    margin: 0.5rem 0 0;
    padding: 0;
}

.presentation-footer-grid li {
    margin-bottom: 0.35rem;
}

.presentation-footer-grid strong {
    font-size: 0.82rem;
    color: var(--text);
}

.presentation-footer-copy {
    text-align: center;
    max-width: 1100px;
    margin: 0 auto;
    padding-top: 1.25rem;
    border-top: 1px solid var(--border);
    font-size: 0.8rem !important;
}

.presentation-hero h1 {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
}

.presentation-lead {
    font-size: 1.05rem;
    color: var(--text-muted);
    max-width: 640px;
    margin: 0 auto 2rem;
}

.presentation-cta {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--accent);
    color: white;
    text-decoration: none;
    padding: 0.85rem 1.6rem;
    border-radius: var(--radius);
    font-weight: 600;
    font-size: 1rem;
    transition: background 0.15s;
    box-shadow: var(--shadow);
}

.presentation-cta:hover {
    background: var(--accent-hover);
    color: white;
}

.presentation-cta-secondary {
    display: inline-block;
    margin-left: 0.75rem;
    color: var(--text-muted);
    font-size: 0.9rem;
    text-decoration: none;
}

.presentation-cta-secondary:hover {
    color: var(--accent);
}

.presentation-main {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 1.5rem 4rem;
}

.presentation-section {
    margin-bottom: 3rem;
}

.presentation-section h2 {
    font-size: 1.35rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.presentation-section > p {
    color: var(--text-muted);
    margin-bottom: 1.5rem;
    max-width: 720px;
}

.presentation-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.25rem;
}

.presentation-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.25rem 1.35rem;
    transition: border-color 0.15s, transform 0.15s;
}

.presentation-card:hover {
    border-color: rgba(99, 102, 241, 0.45);
    transform: translateY(-2px);
}

.presentation-card-icon {
    font-size: 1.75rem;
    margin-bottom: 0.65rem;
    line-height: 1;
}

.presentation-card h3 {
    font-size: 1.05rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.presentation-card p {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin: 0;
}

.presentation-card ul {
    margin: 0.75rem 0 0;
    padding-left: 1.15rem;
    font-size: 0.85rem;
    color: var(--text-muted);
}

.presentation-card li {
    margin-bottom: 0.35rem;
}

.presentation-footer {
    text-align: center;
    padding: 2rem 1.5rem;
    border-top: 1px solid var(--border);
    color: var(--text-muted);
    font-size: 0.85rem;
}

.presentation-footer a {
    color: var(--accent);
    text-decoration: none;
}

/* Guide utilisateur */
.guide-main {
    padding-top: 0;
}

.guide-hero {
    padding-top: 2rem;
    padding-bottom: 1rem;
}

.guide-toc {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem 0.75rem;
    margin-bottom: 2rem;
    padding: 1rem 1.15rem;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
}

.guide-toc a {
    font-size: 0.82rem;
    color: var(--text-muted);
    text-decoration: none;
    padding: 0.35rem 0.65rem;
    border: 1px solid var(--border);
    border-radius: 6px;
}

.guide-toc a:hover {
    color: var(--text);
    border-color: rgba(99, 102, 241, 0.45);
}

.guide-section {
    margin-bottom: 2.5rem;
    max-width: 780px;
}

.guide-section h2 {
    font-size: 1.35rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
    padding-top: 0.5rem;
}

.guide-section h3 {
    font-size: 1rem;
    font-weight: 600;
    margin: 1.25rem 0 0.5rem;
}

.guide-section > p {
    color: var(--text-muted);
    font-size: 0.92rem;
    line-height: 1.6;
}

.guide-list {
    margin: 0.5rem 0;
    padding-left: 1.25rem;
    color: var(--text-muted);
    font-size: 0.9rem;
}

.guide-list li {
    margin-bottom: 0.4rem;
}

.guide-steps {
    margin: 0.5rem 0;
    padding-left: 1.35rem;
    color: var(--text-muted);
    font-size: 0.9rem;
}

.guide-steps li {
    margin-bottom: 0.45rem;
}

.guide-callout {
    margin: 1rem 0;
    padding: 0.85rem 1rem;
    background: rgba(99, 102, 241, 0.1);
    border: 1px solid rgba(99, 102, 241, 0.3);
    border-radius: 8px;
    font-size: 0.9rem;
    line-height: 1.55;
}

.guide-note {
    margin-top: 0.75rem;
    padding: 0.65rem 0.85rem;
    background: var(--surface);
    border-left: 3px solid var(--accent);
    font-size: 0.85rem;
    color: var(--text-muted);
}

.guide-warning {
    margin-top: 0.75rem;
    padding: 0.65rem 0.85rem;
    background: rgba(245, 158, 11, 0.08);
    border-left: 3px solid #f59e0b;
    font-size: 0.85rem;
    color: var(--text-muted);
}

.guide-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.88rem;
    margin: 0.75rem 0;
}

.guide-table th,
.guide-table td {
    border: 1px solid var(--border);
    padding: 0.5rem 0.75rem;
    text-align: left;
}

.guide-table th {
    background: var(--surface);
    font-weight: 600;
}

.guide-table td {
    color: var(--text-muted);
}

.guide-table code,
.guide-section code {
    font-size: 0.85em;
    background: rgba(0, 0, 0, 0.25);
    padding: 0.1rem 0.35rem;
    border-radius: 4px;
}

.guide-section kbd {
    font-size: 0.8em;
    padding: 0.15rem 0.4rem;
    border: 1px solid var(--border);
    border-radius: 4px;
    background: var(--surface);
}

.guide-section a {
    color: var(--accent-hover);
}

@media (max-width: 900px) {
    .presentation-highlights {
        grid-template-columns: repeat(2, 1fr);
    }

    .presentation-split {
        grid-template-columns: 1fr;
    }

    .presentation-usecases {
        grid-template-columns: 1fr;
    }

    .presentation-footer-grid {
        grid-template-columns: 1fr;
        gap: 1.25rem;
    }
}

@media (max-width: 640px) {
    .presentation-cta-secondary {
        display: block;
        margin: 1rem 0 0;
    }

    .presentation-header {
        flex-direction: column;
        align-items: flex-start;
    }

    .presentation-hero-rich {
        padding-top: 2.5rem;
    }

    .presentation-highlights {
        grid-template-columns: 1fr;
    }

    .presentation-cta-band {
        flex-direction: column;
        align-items: flex-start;
        padding: 1.5rem;
    }

    .presentation-cta-row {
        flex-direction: column;
        width: 100%;
    }

    .presentation-cta-row .presentation-cta,
    .presentation-cta-row .presentation-cta-outline {
        width: 100%;
        justify-content: center;
    }
}