/* ==========================================================================
   Design tokens — extraits de DESIGN.md (charte moveastudio)
   ========================================================================== */
:root {
    /* Couleurs de fond */
    --color-background: #131312;
    --color-surface: #292926;
    --color-surface-container-lowest: #0e0e0c;
    --color-surface-container-low: #1c1c1a;
    --color-surface-container: #20201e;
    --color-surface-variant: #353532;
    --color-border: #353531;

    /* Texte */
    --color-text-primary: #ffffff;
    --color-text-secondary: #b8b6b4;

    /* Accent (voir DESIGN.md pour la palette complète si besoin d'étendre) */
    --color-primary: #ffb2b9;
    --color-primary-container: #ff5372;
    --gradient-primary: linear-gradient(135deg, #ff5372 0%, #f78626 100%);

    /* Typographie */
    --font-base: 'Poppins', system-ui, -apple-system, sans-serif;
    --fs-display: clamp(2.5rem, 6vw, 4.5rem);       /* 40px -> 72px */
    --fs-headline-xl: clamp(2rem, 4vw, 3rem);        /* 32px -> 48px */
    --fs-headline-lg: clamp(1.5rem, 2.5vw, 2rem);    /* 24px -> 32px */
    --fs-body-lg: 1.125rem;                           /* 18px */
    --fs-body-md: 1rem;                               /* 16px */
    --fs-label: 0.875rem;                             /* 14px */

    /* Rayons */
    --radius-sm: 0.5rem;
    --radius: 1rem;
    --radius-md: 1.5rem;
    --radius-lg: 2rem;
    --radius-xl: 3rem;
    --radius-full: 9999px;

    /* Espacements */
    --container-max: 1440px;
    --gutter: 1.5rem;
    --margin-desktop: 80px;
    --margin-mobile: 24px;
    --space-section: clamp(4rem, 10vw, 10rem); /* 64px -> 160px */
}

/* ==========================================================================
   Reset de base
   ========================================================================== */
* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: var(--font-base);
    font-size: var(--fs-body-md);
    line-height: 1.6;
    color: var(--color-text-primary);
    background: var(--color-background);
    -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: inherit; }

/* Le header est en position fixed (80px de haut) : on décale tout le contenu
   principal d'autant, sur toutes les pages, pour qu'il ne passe jamais dessous. */
.site-main, .front-page { padding-top: 80px; }

.container {
    max-width: var(--container-max);
    margin-inline: auto;
    padding-inline: var(--margin-mobile);
}
@media (min-width: 768px) {
    .container { padding-inline: var(--margin-desktop); }
}

.section { padding-block: var(--space-section); }

.sr-only {
    position: absolute;
    width: 1px; height: 1px;
    overflow: hidden;
    clip: rect(0 0 0 0);
}

/* ==========================================================================
   Typographie
   ========================================================================== */
.display {
    font-size: var(--fs-display);
    font-weight: 700;
    line-height: 1.1;
    letter-spacing: -0.02em;
}
.headline-xl {
    font-size: var(--fs-headline-xl);
    font-weight: 600;
    line-height: 1.2;
    letter-spacing: -0.01em;
}
.headline-lg {
    font-size: var(--fs-headline-lg);
    font-weight: 600;
    line-height: 1.3;
}
.body-lg { font-size: var(--fs-body-lg); color: var(--color-text-secondary); }
.body-md { font-size: var(--fs-body-md); color: var(--color-text-secondary); }
.label {
    font-size: var(--fs-label);
    font-weight: 600;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.text-gradient {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* ==========================================================================
   Boutons & badges
   ========================================================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 1rem 2rem;
    border-radius: var(--radius-full);
    font-size: var(--fs-label);
    font-weight: 600;
    letter-spacing: 0.05em;
    text-decoration: none;
    text-transform: none;
    border: 1px solid transparent;
    cursor: pointer;
    transition: all 0.3s ease;
    white-space: nowrap;
}
.btn--primary {
    background: var(--color-primary-container);
    color: #fff;
}
.btn--primary:hover { background: var(--gradient-primary); transform: scale(0.97); }

.btn--outline {
    background: transparent;
    border-color: var(--color-text-primary);
    color: var(--color-text-primary);
}
.btn--outline:hover {
    background: var(--gradient-primary);
    border-color: transparent;
    color: #fff;
    transform: scale(0.97);
}

.btn--dark {
    background: #000;
    color: #fff;
}
.btn--dark:hover { opacity: 0.9; transform: scale(0.97); }

.badge {
    display: inline-block;
    padding: 0.4rem 1rem;
    border-radius: var(--radius-full);
    border: 1px solid var(--color-border);
    background: var(--color-surface);
    color: var(--color-text-secondary);
    font-size: var(--fs-label);
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

/* ==========================================================================
   Header
   ========================================================================== */
.site-header {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 50;
    height: 80px;
    display: flex;
    align-items: center;
    background: rgba(19, 19, 18, 0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(53, 53, 49, 0.5);
    transition: background 0.3s ease;
}
.site-header.is-scrolled { background: rgba(19, 19, 18, 0.95); }

.site-header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
}

.site-branding img { height: 32px; width: auto; }

.primary-navigation ul {
    display: flex;
    gap: 2rem;
    list-style: none;
    margin: 0;
    padding: 0;
}
.primary-navigation a {
    font-size: var(--fs-label);
    font-weight: 600;
    text-transform: lowercase;
    text-decoration: none;
    color: var(--color-text-secondary);
    transition: color 0.2s ease;
}
.primary-navigation a:hover { color: var(--color-text-primary); }

.header-cta { display: inline-flex; }

.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}
.menu-toggle__bar { width: 22px; height: 2px; background: var(--color-text-primary); }

@media (max-width: 900px) {
    .header-cta { display: none; }
    .menu-toggle { display: flex; }
    .primary-navigation {
        display: none;
        position: absolute;
        top: 80px; left: 0; right: 0;
        background: var(--color-surface-container-lowest);
        border-bottom: 1px solid var(--color-border);
    }
    .primary-navigation.is-open { display: block; }
    .primary-navigation ul { flex-direction: column; padding: 1.5rem var(--margin-mobile); gap: 1.25rem; }
}

/* ==========================================================================
   Hero
   ========================================================================== */
.hero {
    min-height: 90vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    position: relative;
    overflow: hidden;
}
.hero__glow {
    position: absolute;
    inset: 0;
    z-index: -1;
    overflow: hidden;
}
.hero__glow span {
    position: absolute;
    border-radius: 50%;
    filter: blur(120px);
    opacity: 0.18;
    background: var(--gradient-primary);
}
.hero__glow span:nth-child(1) { top: 5%; left: 5%; width: 260px; height: 260px; }
.hero__glow span:nth-child(2) { bottom: 10%; right: 10%; width: 340px; height: 340px; opacity: 0.14; }
.hero__glow span:nth-child(3) { top: 25%; right: 15%; width: 180px; height: 180px; opacity: 0.12; }

.hero__inner { max-width: 56rem; margin-inline: auto; display: flex; flex-direction: column; align-items: center; }
.hero__badge { margin-bottom: 2rem; }
.hero__title { color: var(--color-text-primary); margin-bottom: 1.5rem; max-width: 48rem; }
.hero__subtitle { max-width: 36rem; margin-bottom: 3rem; }
.hero__actions { display: flex; flex-direction: column; gap: 1rem; width: 100%; }
@media (min-width: 640px) {
    .hero__actions { flex-direction: row; width: auto; }
}

/* ==========================================================================
   Manifesto
   ========================================================================== */
.manifesto {
    border-top: 1px solid var(--color-border);
    background: var(--color-surface-container-lowest);
}
.manifesto__grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--gutter);
}
@media (min-width: 900px) {
    .manifesto__grid { grid-template-columns: 5fr 1fr 6fr; }
    .manifesto__spacer { display: block; }
}
.manifesto__title { margin: 0; }
.manifesto__text { margin-bottom: 3rem; }
.manifesto__words { display: flex; flex-wrap: wrap; gap: 2rem; }
.manifesto__words span { font-size: var(--fs-headline-lg); font-weight: 600; }

/* ==========================================================================
   Services
   ========================================================================== */
.services { background: var(--color-surface-container-lowest); }
.section-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    margin-bottom: 4rem;
    gap: 1rem;
}
.section-header__link {
    display: none;
    align-items: center;
    gap: 0.5rem;
    font-size: var(--fs-label);
    font-weight: 600;
    text-decoration: none;
}
@media (min-width: 768px) { .section-header__link { display: inline-flex; } }

.services__grid, .team__grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--gutter);
}
@media (min-width: 768px) {
    .services__grid { grid-template-columns: repeat(3, 1fr); }
}

.service-card {
    position: relative;
    background: var(--color-surface-container);
    border: 1px solid rgba(53, 53, 49, 0.2);
    border-radius: var(--radius-md);
    padding: 2rem;
    overflow: hidden;
    transition: box-shadow 0.3s ease;
}
.service-card:hover { box-shadow: 0 20px 40px rgba(0,0,0,0.25); }
.service-card__icon {
    position: absolute;
    top: 1rem; right: 1rem;
    font-size: 5rem;
    opacity: 0.08;
}
.service-card__tag { margin-bottom: 2rem; background: var(--color-surface-container-low); }
.service-card__title { min-height: 4.5rem; margin-bottom: 2rem; color: var(--color-text-primary); }
.service-card__list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 1rem; }
.service-card__list li { display: flex; align-items: center; gap: 0.75rem; color: var(--color-text-secondary); }
.service-card__list .arrow { color: var(--color-primary-container); font-size: 0.9rem; }

/* ==========================================================================
   Portfolio / Projets
   ========================================================================== */
.portfolio__grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--gutter);
}
@media (min-width: 768px) { .portfolio__grid { grid-template-columns: repeat(3, 1fr); } }

.portfolio-item { text-decoration: none; color: inherit; display: block; }
.portfolio-item__media {
    aspect-ratio: 4 / 5;
    background: var(--color-surface);
    border-radius: var(--radius-md);
    overflow: hidden;
    margin-bottom: 1.5rem;
    position: relative;
}
.portfolio-item__media img {
    width: 100%; height: 100%; object-fit: cover;
    transition: transform 0.7s ease;
}
.portfolio-item:hover .portfolio-item__media img { transform: scale(1.05); }
.portfolio-item__placeholder {
    position: absolute; inset: 0;
    display: flex; align-items: center; justify-content: center;
    background: var(--color-surface-variant);
    color: var(--color-text-secondary);
    opacity: 0.5;
    font-size: 2.5rem;
}
.portfolio-item__title { margin-bottom: 0.25rem; color: var(--color-text-primary); }
.portfolio-item__subtitle { margin-bottom: 1rem; }
.portfolio-item__tags { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.portfolio-item__tags span {
    font-size: 0.75rem;
    color: var(--color-text-secondary);
    background: rgba(53, 53, 50, 0.2);
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-full);
}

/* ==========================================================================
   Équipe
   ========================================================================== */
@media (min-width: 640px) { .team__grid { grid-template-columns: repeat(2, 1fr); } }
.team-member__photo {
    aspect-ratio: 4 / 5;
    background: var(--color-surface-container);
    border: 1px solid rgba(53, 53, 49, 0.2);
    border-radius: var(--radius-md);
    overflow: hidden;
    margin-bottom: 1.5rem;
    position: relative;
}
.team-member__photo img { width: 100%; height: 100%; object-fit: cover; }
.team-member__name { margin-bottom: 0.5rem; color: var(--color-text-primary); }

/* ==========================================================================
   CTA banner
   ========================================================================== */
.cta-banner {
    border-radius: var(--radius-lg);
    overflow: hidden;
    background: var(--gradient-primary);
    padding: 5rem var(--margin-mobile);
    text-align: center;
}
@media (min-width: 768px) { .cta-banner { padding: 8rem var(--margin-desktop); } }
.cta-banner__inner { max-width: 44rem; margin-inline: auto; display: flex; flex-direction: column; align-items: center; }
.cta-banner__title { color: #fff; margin-bottom: 3rem; }

/* ==========================================================================
   Contact
   ========================================================================== */
.contact-form { display: grid; gap: 1.5rem; max-width: 600px; margin-inline: auto; }
.contact-form label { font-size: var(--fs-label); font-weight: 600; color: var(--color-text-secondary); }
.contact-form input, .contact-form textarea {
    width: 100%;
    padding: 0.85rem 0;
    background: transparent;
    border: none;
    border-bottom: 1px solid var(--color-border);
    color: var(--color-text-primary);
    font-family: inherit;
    font-size: var(--fs-body-md);
}
.contact-form input:focus, .contact-form textarea:focus {
    outline: none;
    border-image: var(--gradient-primary) 1;
    border-bottom: 2px solid;
}
.honeypot { position: absolute; left: -9999px; }
.form-success { color: #59df87; font-weight: 600; }

/* ==========================================================================
   Blog
   ========================================================================== */
.blog__grid { display: grid; grid-template-columns: 1fr; gap: var(--gutter); }
@media (min-width: 768px) { .blog__grid { grid-template-columns: repeat(3, 1fr); } }
.blog-card {
    background: var(--color-surface-container);
    border: 1px solid rgba(53, 53, 49, 0.2);
    border-radius: var(--radius-md);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    text-decoration: none;
}
.blog-card__media {
    aspect-ratio: 16 / 10;
    background: var(--color-surface-variant);
    display: flex; align-items: center; justify-content: center;
    color: var(--color-text-secondary);
    opacity: 0.5;
    font-size: 2rem;
    overflow: hidden;
}
.blog-card__media img { width: 100%; height: 100%; object-fit: cover; opacity: 1; }
.blog-card__body { padding: 2rem; display: flex; flex-direction: column; flex-grow: 1; }
.blog-card__date { font-size: var(--fs-label); color: var(--color-text-secondary); margin-bottom: 1rem; }
.blog-card__title { color: var(--color-text-primary); margin-bottom: 1.5rem; flex-grow: 1; }
.blog-card__link { font-size: var(--fs-label); font-weight: 600; color: var(--color-primary); text-decoration: none; margin-top: auto; }

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer {
    background: var(--color-surface-container-lowest);
    border-top: 1px solid rgba(53, 53, 49, 0.2);
    padding-block: 5rem;
}
.footer-grid { display: grid; grid-template-columns: 1fr; gap: 3rem; }
@media (min-width: 768px) { .footer-grid { grid-template-columns: repeat(4, 1fr); } }
.footer-brand img { height: 32px; width: auto; margin-bottom: 1.5rem; }
.footer-brand p { max-width: 20rem; color: var(--color-text-secondary); }
.footer-col h4 {
    font-size: var(--fs-label);
    color: var(--color-text-primary);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 1.5rem;
}
.footer-col ul { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 1rem; }
.footer-col a { color: var(--color-text-secondary); text-decoration: none; }
.footer-col a:hover { color: var(--color-primary-container); }
.footer-bottom {
    grid-column: 1 / -1;
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid rgba(53, 53, 49, 0.2);
    display: flex;
    flex-direction: column;
    gap: 1rem;
    align-items: center;
    text-align: center;
}
@media (min-width: 768px) {
    .footer-bottom { flex-direction: row; justify-content: space-between; text-align: left; }
}
.footer-bottom p { margin: 0; font-size: 0.875rem; color: var(--color-text-secondary); }
.footer-legal { display: flex; gap: 1.5rem; font-size: 0.875rem; }
.footer-legal a { color: var(--color-text-secondary); text-decoration: none; }
.footer-legal a:hover { color: var(--color-primary-container); }