:root {
    --color-primary: #63A4FF;
    --color-primary-strong: #3F7CFF;
    --color-highlight: #A97CFF;
    --color-text: #F5F7FF;
    --color-muted: rgba(245, 247, 255, 0.78);
    --color-glass: rgba(12, 18, 46, 0.68);
    --color-glass-soft: rgba(22, 27, 56, 0.55);
    --color-border: rgba(255, 255, 255, 0.12);
    --color-gradient-start: rgba(8,/* ----- Veille technologique ----- */
.veille-hero {
    text-align: left;
    display: flex;
    flex-direction: column;
    gap: 1.2rem;
    align-items: flex-start;
}

.veille-hero .hero-subtitle {
    margin: 0;
}

.veille-hero .cta-group {
    justify-content: flex-start;
    margin-top: 1.5rem;
}

.hero-tagline {
    font-size: clamp(1.1rem, 1vw + 1rem, 1.35rem);
    font-weight: 500;
    color: var(--color-text);
    max-width: 720px;
}

.content-section {
    max-width: 1080px;
    margin: 0 auto;
    background: var(--color-glass);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: clamp(2rem, 2vw + 1.5rem, 3rem);
    box-shadow: var(--shadow-soft);
    backdrop-filter: blur(18px);
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.content-section h2 {
    font-size: clamp(1.8rem, 2vw + 1rem, 2.4rem);
    font-weight: 600;
}

.content-section p {
    color: var(--color-muted);
    font-size: 1.05rem;
}

.points-list {
    list-style: disc;
    padding-left: 1.4rem;
    display: grid;
    gap: 0.8rem;
    color: var(--color-muted);
    font-size: 1.02rem;
}

.axes-grid .highlight-card,
.sources-grid .highlight-card {
    align-items: flex-start;
    gap: 0.75rem;
}

.axis-card h3,
.source-card h3 {
    font-size: 1.2rem;
}

.axis-card p,
.source-card p {
    font-size: 0.98rem;
    line-height: 1.5;
}

.e5-section {
    background: var(--color-glass-soft);
    border: 1px solid rgba(255, 255, 255, 0.18);
} 20, 58, 0.92);
    --color-gradient-end: rgba(30, 8, 60, 0.75);
    --shadow-soft: 0 20px 40px rgba(4, 11, 40, 0.45);
    --shadow-hard: 0 30px 60px rgba(2, 8, 35, 0.55);
    --transition: all 0.35s ease;
    --radius-lg: 24px;
    --radius-md: 18px;
    --radius-sm: 12px;
}

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

@keyframes fadeInNoMove {
    0% {
        opacity: 0;
    }
    100% {
        opacity: 1;
    }
}

body {
    font-family: 'Poppins', 'Segoe UI', Arial, sans-serif;
    line-height: 1.6;
    color: var(--color-text);
    background: radial-gradient(circle at top, rgba(34, 45, 104, 0.55), rgba(5, 9, 20, 0.96));
    min-height: 100vh;
    overflow-x: hidden;
}

a {
    color: inherit;
    text-decoration: none;
    transition: color 0.3s ease, transform 0.3s ease;
}

a:hover,
a:focus-visible {
    color: var(--color-primary);
}

ul {
    padding-left: 1.2rem;
    color: var(--color-muted);
}

ul li + li {
    margin-top: 0.35rem;
}

#v1 {
    position: fixed;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    background-size: cover;
    z-index: -2;
    filter: brightness(0.25) saturate(1.2);
}

.page-wrapper {
    position: relative;
    z-index: 1;
    min-height: 100vh;
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 2.5rem;
}

.page-wrapper::before {
    content: "";
    position: absolute;
    inset: 0;
    z-index: -1;
    background: linear-gradient(135deg, var(--color-gradient-start), var(--color-gradient-end));
    opacity: 0.82;
    backdrop-filter: blur(30px);
}

header {
    background: var(--color-glass);
    backdrop-filter: blur(20px);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    display: flex;
    align-items: center;
    gap: 2rem;
    justify-content: space-between;
    animation: fadeInNoMove 1.1s ease-out;
    box-shadow: var(--shadow-soft);
}

header h1 {
    font-size: clamp(1.5rem, 2vw + 0.5rem, 2rem);
    font-weight: 600;
    letter-spacing: 0.5px;
}

.branding {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.title-group {
    display: flex;
    flex-direction: column;
    gap: 0.2rem;
}

.logo {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 52px;
    height: 52px;
    border-radius: 16px;
    background: linear-gradient(140deg, var(--color-primary), var(--color-highlight));
    font-weight: 700;
    letter-spacing: 1px;
    font-size: 1.1rem;
    color: #0b1022;
    box-shadow: 0 15px 30px rgba(99, 164, 255, 0.45);
}

.subtitle {
    font-size: 0.95rem;
    color: var(--color-muted);
}

.main-nav,
header nav {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
    justify-content: flex-end;
}

.main-nav a,
header nav a {
    position: relative;
    padding: 0.45rem 0.9rem;
    border-radius: 999px;
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--color-muted);
    transition: var(--transition);
}

.main-nav a::after,
header nav a::after {
    content: "";
    position: absolute;
    inset: 0;
    border-radius: inherit;
    background: linear-gradient(120deg, rgba(99, 164, 255, 0.2), rgba(169, 124, 255, 0.2));
    opacity: 0;
    transition: var(--transition);
    z-index: -1;
}

.main-nav a:hover,
.main-nav a:focus-visible,
header nav a:hover,
header nav a:focus-visible {
    color: var(--color-text);
    transform: translateY(-2px);
}

.main-nav a:hover::after,
.main-nav a:focus-visible::after,
header nav a:hover::after,
header nav a:focus-visible::after {
    opacity: 1;
}

.main-nav a.is-active,
header nav a.is-active {
    color: var(--color-text);
    font-weight: 600;
}

.main-nav a.is-active::after,
header nav a.is-active::after {
    opacity: 1;
    background: linear-gradient(120deg, rgba(99, 164, 255, 0.35), rgba(169, 124, 255, 0.35));
}

main {
    display: flex;
    flex-direction: column;
    gap: 3.5rem;
}


.hero {
    max-width: 960px;
    margin: 0 auto;
    text-align: center;
    padding: 3rem 2rem;
    background: var(--color-glass-soft);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-soft);
    backdrop-filter: blur(22px);
}

.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    text-transform: uppercase;
    letter-spacing: 3px;
    font-size: 0.75rem;
    color: var(--color-muted);
    padding: 0.3rem 0.9rem;
    border-radius: 999px;
    background: rgba(99, 164, 255, 0.18);
}

.primary-title {
    font-size: clamp(2rem, 2.7vw + 1rem, 3rem);
    font-weight: 600;
    margin: 1.2rem 0 1rem;
    line-height: 1.2;
}

.hero-subtitle {
    color: var(--color-muted);
    max-width: 720px;
    margin: 0 auto;
    font-size: 1.05rem;
}

.projects-hero {
    text-align: left;
    padding: 2.8rem 2.5rem;
    background: rgba(22, 27, 56, 0.6);
    display: flex;
    flex-direction: column;
    gap: 1.2rem;
}

.projects-hero .hero-subtitle {
    margin: 0;
    max-width: 640px;
}

.projects-hero .cta-group {
    justify-content: flex-start;
}

.projects-hero .eyebrow {
    background: rgba(169, 124, 255, 0.2);
}

.cta-group {
    margin-top: 2rem;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1rem;
}


.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.6rem;
    border-radius: 999px;
    font-weight: 600;
    letter-spacing: 0.4px;
    transition: var(--transition);
    border: 1px solid transparent;
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-strong));
    color: #0b1022;
    box-shadow: 0 20px 35px rgba(99, 164, 255, 0.35);
}

.btn-primary:hover,
.btn-primary:focus-visible {
    transform: translateY(-3px);
    box-shadow: 0 25px 45px rgba(99, 164, 255, 0.45);
}

.btn-secondary {
    background: transparent;
    color: var(--color-text);
    border-color: rgba(255, 255, 255, 0.25);
}

.btn-secondary:hover,
.btn-secondary:focus-visible {
    border-color: rgba(255, 255, 255, 0.45);
    transform: translateY(-3px);
    background: rgba(255, 255, 255, 0.08);
}

.highlight-section {
    max-width: 1100px;
    margin: 0 auto;
}

.section-title {
    font-size: clamp(1.8rem, 2vw + 1rem, 2.3rem);
    text-align: center;
    margin-bottom: 0.75rem;
}

.section-intro {
    text-align: center;
    color: var(--color-muted);
    max-width: 700px;
    margin: 0 auto 2.5rem;
    font-size: 1.05rem;
}

.highlight-grid {
    display: grid;
    gap: 1.8rem;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.highlight-card {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    padding: 2rem;
    border-radius: var(--radius-md);
    background: var(--color-glass);
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-soft);
    backdrop-filter: blur(18px);
    height: 100%;
    transition: var(--transition);
}

.highlight-card:hover,
.highlight-card:focus-visible {
    transform: translateY(-6px);
    border-color: rgba(255, 255, 255, 0.22);
    box-shadow: var(--shadow-hard);
}

.highlight-card .badge {
    align-self: flex-start;
    padding: 0.35rem 0.9rem;
    border-radius: 999px;
    font-size: 0.78rem;
    letter-spacing: 2px;
    text-transform: uppercase;
    background: rgba(169, 124, 255, 0.2);
    color: rgba(255, 255, 255, 0.85);
}

.highlight-card h3 {
    font-size: 1.35rem;
    font-weight: 600;
}

.highlight-card p {
    color: var(--color-muted);
    flex: 1;
}

.highlight-card .link-arrow {
    color: var(--color-primary);
    font-weight: 500;
}

footer {
    margin-top: clamp(2.5rem, 5vw, 4rem);
    text-align: center;
    padding: 1.75rem 1.5rem;
    background: var(--color-glass-soft);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-soft);
    backdrop-filter: blur(16px);
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
    font-size: 0.95rem;
}

.footer-badge {
    font-size: 0.85rem;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: var(--color-muted);
}

footer a {
    color: var(--color-primary);
    font-weight: 500;
}

footer a:hover,
footer a:focus-visible {
    color: var(--color-primary-strong);
}

/* ----- Sections communes (missions, projets, etc.) ----- */

#projects {
    padding: 3rem 1.5rem 4rem;
    text-align: center;
    max-width: 1100px;
    margin: 0 auto;
}

#projects h2 {
    font-size: clamp(1.9rem, 2vw + 1rem, 2.4rem);
    margin-bottom: 2rem;
}

.projects-grid .section-intro {
    text-align: left;
    margin-left: 0;
    margin-right: auto;
    max-width: 680px;
}

.project-list {
    display: flex;
    justify-content: center;
    align-items: stretch;
    flex-wrap: wrap;
    gap: 1.8rem;
}

.project {
    background: var(--color-glass);

    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
    padding: 1.75rem;
    width: min(320px, 90vw);
    text-align: left;
    box-shadow: var(--shadow-soft);
    backdrop-filter: blur(16px);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.project:hover {
    transform: translateY(-8px);
    border-color: rgba(255, 255, 255, 0.22);
    box-shadow: var(--shadow-hard);
}

.project h3 {
    color: var(--color-text);
    font-size: 1.35rem;
}

.project p {
    color: var(--color-muted);
    font-size: 0.98rem;
}

.project .btn {
    align-self: flex-start;
    padding-inline: 1.25rem;
}

.project-badge {
    display: inline-flex;
    align-items: center;
    padding: 0.28rem 0.85rem;
    border-radius: 999px;
    background: rgba(99, 164, 255, 0.18);
    color: rgba(255, 255, 255, 0.82);
    font-size: 0.78rem;
    letter-spacing: 1.2px;
    text-transform: uppercase;
    margin-bottom: 0.6rem;
}

.project-meta {
    list-style: none;
    padding: 0;
    margin: 0;
    color: var(--color-muted);
    display: grid;
    gap: 0.4rem;
}

.project-meta li {
    font-size: 0.92rem;
    line-height: 1.45;
}

.project-meta li strong {
    color: var(--color-text);
    font-weight: 600;
}

.project-footer {
    margin-top: auto;
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem;
}

.btn-disabled {
    pointer-events: none;
    opacity: 0.55;
}

.btn-secondary.btn-disabled {
    border-color: rgba(255, 255, 255, 0.18);
    background: rgba(255, 255, 255, 0.06);
}

.projects-grid .project {
    min-height: 280px;
}

/* ----- Section parcours & timeline ----- */

.section-parcours,

.parcours-section {
    position: relative;
    color: var(--color-text);
    background-size: cover;
    background-position: center;
    padding: 4rem 1.5rem;
    overflow: hidden;
}

.section-parcours::before,
.parcours-section::before {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(145deg, rgba(8, 20, 58, 0.92), rgba(12, 18, 46, 0.82));
    z-index: 0;
}

.section-parcours .container,
.parcours-section .container {
    position: relative;
    z-index: 1;
}

.timeline {
    position: relative;
    padding-block: 2rem;
    --timeline-x: 42px;
}

.timeline::before {
    content: "";
    position: absolute;
    top: 0;
    bottom: 0;
    left: var(--timeline-x);
    width: 2px;
    background: rgba(255, 255, 255, 0.35);
}

.timeline-item {
    position: relative;
    padding: 2.5rem 0 2.5rem 3.75rem;
}

.timeline-date {
    display: inline-block;
    background: var(--color-glass-soft);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    padding: 0.6rem 1.4rem;
    font-weight: 600;
    margin-bottom: 1rem;
    box-shadow: var(--shadow-soft);
    transition: var(--transition);
}

.timeline-dot {
    position: absolute;
    left: var(--timeline-x);
    top: 50%;
    transform: translate(-50%, -50%);
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--color-primary);
    box-shadow: 0 0 0 6px rgba(99, 164, 255, 0.35);
}

.timeline-cardParcours {
    background: var(--color-glass);
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-soft);
    backdrop-filter: blur(18px);
    padding: 1.75rem;
}

.timeline-cardParcours h3 {
    color: var(--color-text);
    margin-bottom: 0.6rem;
}

.timeline-cardParcours .text-accent {
    color: var(--color-primary);
}

.parcours-underline {
    color: var(--color-text);
    border-bottom: 1px solid rgba(255, 255, 255, 0.25);
    padding-bottom: 0.35rem;
}


/* ----- Veille technologique ----- */
.veille-hero {
    text-align: left;
    display: flex;
    flex-direction: column;
    gap: 1.2rem;
    align-items: flex-start;
}

.veille-hero .hero-subtitle {
    margin: 0;
}

.veille-hero .cta-group {
    justify-content: flex-start;
    margin-top: 1.5rem;
}

.hero-tagline {
    font-size: clamp(1.1rem, 1vw + 1rem, 1.35rem);
    font-weight: 500;
    color: var(--color-text);
    max-width: 720px;
}

.content-section {
    max-width: 1080px;
    margin: 0 auto;
    background: var(--color-glass);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: clamp(2rem, 2vw + 1.5rem, 3rem);
    box-shadow: var(--shadow-soft);
    backdrop-filter: blur(18px);
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.content-section h2 {
    font-size: clamp(1.8rem, 2vw + 1rem, 2.4rem);
    font-weight: 600;
}

.content-section p {
    color: var(--color-muted);
    font-size: 1.05rem;
}

.points-list {
    list-style: disc;
    padding-left: 1.4rem;
    display: grid;
    gap: 0.8rem;
    color: var(--color-muted);
    font-size: 1.02rem;
}

.axes-grid .highlight-card,
.sources-grid .highlight-card {
    align-items: flex-start;
    gap: 0.75rem;
}

.axis-card h3,
.source-card h3 {
    font-size: 1.2rem;
}

.axis-card p,
.source-card p {
    font-size: 0.98rem;
    line-height: 1.5;
}

.e5-section {
    background: var(--color-glass-soft);
    border: 1px solid rgba(255, 255, 255, 0.18);
}

/* ----- Responsivité ----- */


@media (max-width: 1024px) {
    header {
        flex-direction: column;
        align-items: flex-start;
        gap: 1.5rem;
    }

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

    .main-nav,
    header nav {
        justify-content: center;
        width: 100%;
    }

    .hero {
        padding: 2.5rem 1.5rem;
    }
}

@media (max-width: 768px) {
    .page-wrapper {
        padding: 1.2rem;
    }

    header {
        align-items: center;
        text-align: center;
    }

    .branding {
        align-items: center;
        text-align: center;
    }

    .main-nav,
    header nav {
        flex-direction: column;
    }

    .hero {
        padding: 2rem 1.2rem;
    }

    .highlight-card {
        padding: 1.6rem;
    }

    #projects {
        padding-inline: 1rem;
    }

    .timeline {
        --timeline-x: 26px;
    }

    .timeline-item {
        padding-left: 2.4rem;
    }

    .content-section {
        padding: 1.8rem 1.4rem;
    }

    .veille-hero {
        text-align: center;
        align-items: center;
    }

    .veille-hero .cta-group {
        justify-content: center;
        width: 100%;
    }

    .hero-tagline {
        text-align: center;
    }
}


@media (max-width: 480px) {
    .cta-group {
        flex-direction: column;
        align-items: stretch;
    }

    .btn {
        width: 100%;
    }

    header {
        padding: 1.2rem;
    }

    footer {
        padding: 1.4rem;
    }

    .content-section {
        padding: 1.6rem 1.1rem;
    }

    .points-list {
        padding-left: 1rem;
    }

    .hero-tagline {
        font-size: 1.1rem;
    }
}