:root {
    --bg-dark: #050610;
    --bg-gradient-top: #151a2a;
    --bg-gradient-bottom: #050610;

    --accent: #ff6b4a;      /* orange/rouge du ciel */
    --accent-soft: #f3a96c; /* ton plus doux */
    --accent-blue: #4b7bff; /* rappel du ciel bleu */

    --card-bg: rgba(10, 12, 25, 0.9);
    --card-bg-soft: rgba(17, 20, 40, 0.9);
    --card-border: rgba(255, 255, 255, 0.07);

    --text-main: #f7f7ff;
    --text-muted: #a6a9c5;
    --text-soft: #c7c9de;

    --radius-xl: 32px;
    --radius-lg: 24px;
    --radius-md: 16px;

    --shadow-soft: 0 18px 45px rgba(0, 0, 0, 0.65);
    --shadow-small: 0 10px 25px rgba(0, 0, 0, 0.4);

    --nav-height: 72px;
}

/* RESET SIMPLE */

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

html,
body {
    margin: 0;
    padding: 0;
}

body {
    min-height: 100vh;
    font-family: 'Poppins', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    color: var(--text-main);
    background:
        radial-gradient(circle at top left, #283866 0, transparent 50%),
        radial-gradient(circle at bottom right, #5e2530 0, transparent 50%),
        linear-gradient(to bottom, var(--bg-gradient-top), var(--bg-gradient-bottom));
    -webkit-font-smoothing: antialiased;
}

/* GLOBAL */

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

a {
    color: inherit;
    text-decoration: none;
}

section {
    padding: 80px min(7vw, 80px);
    position: relative;
    z-index: 1;
}

.section-header {
    text-align: center;
    margin-bottom: 40px;
}

.section-title {
    font-family: 'Bebas Neue', system-ui, sans-serif;
    font-size: clamp(2.4rem, 3vw, 3rem);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    margin: 0 0 8px;
}

.section-subtitle {
    margin: 0;
    color: var(--text-soft);
    max-width: 580px;
    margin-inline: auto;
    font-size: 0.95rem;
}

/* HEADER / NAV */

.site-header {
    position: fixed;
    inset-inline: 0;
    top: 0;
    z-index: 50;
    height: var(--nav-height);
    display: flex;
    align-items: center;
    pointer-events: none;
}

.nav-inner {
    width: 100%;
    padding: 0 min(7vw, 80px);
    display: flex;
    justify-content: space-between;
    align-items: center;
    pointer-events: auto;
}

.logo-zone {
    display: flex;
    align-items: baseline;
    gap: 6px;
}

.logo-text {
    padding: 8px 14px;
    border-radius: 999px;
    background: rgba(4, 7, 20, 0.8);
    border: 1px solid rgba(255, 255, 255, 0.12);
    box-shadow: var(--shadow-small);
    display: inline-flex;
    flex-direction: column;
}

.logo-main {
    font-family: 'Bebas Neue', system-ui, sans-serif;
    letter-spacing: 0.16em;
    font-size: 1.15rem;
}

.logo-sub {
    font-size: 0.65rem;
    text-transform: uppercase;
    color: var(--text-muted);
}

.main-nav {
    display: flex;
    align-items: center;
    gap: 18px;
    padding: 8px 14px;
    border-radius: 999px;
    background: rgba(6, 9, 25, 0.92);
    border: 1px solid rgba(255, 255, 255, 0.12);
    backdrop-filter: blur(16px);
    box-shadow: var(--shadow-small);
}

.nav-link {
    font-size: 0.82rem;
    text-transform: uppercase;
    letter-spacing: 0.14em;
    color: var(--text-soft);
    padding: 6px 10px;
    border-radius: 999px;
    transition: color 0.18s ease, background 0.18s ease, transform 0.18s ease;
}

.nav-link:hover {
    color: var(--text-main);
    background: rgba(255, 255, 255, 0.06);
    transform: translateY(-1px);
}

.nav-cta {
    background: linear-gradient(120deg, var(--accent), var(--accent-blue));
    color: #fff;
    font-weight: 600;
}

.nav-cta:hover {
    background: linear-gradient(120deg, var(--accent-blue), var(--accent));
}

/* HERO */

.hero-section {
    padding-top: calc(80px + var(--nav-height));
    padding-bottom: 96px;
    position: relative;
    overflow: hidden;
    isolation: isolate;
}

/* Fond hero inspiré de la cover */
.hero-section::before {
    content: "";
    position: absolute;
    inset: -10%;
    background-image:
        linear-gradient(to top, rgba(5, 6, 16, 0.9), rgba(5, 6, 16, 0.2)),
        url("assets/cover-tome1.jpg");
    background-position: center;
    background-size: cover;
    opacity: 0.65;
    z-index: -2;
}

.hero-bg-overlay {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at top right, rgba(255, 112, 75, 0.65), transparent 55%),
        radial-gradient(circle at bottom left, rgba(78, 113, 255, 0.65), transparent 55%);
    mix-blend-mode: screen;
    opacity: 0.7;
    z-index: -1;
}

.hero-content {
    display: grid;
    grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr);
    gap: 56px;
    align-items: center;
}

.hero-left {
    max-width: 640px;
}

.hero-label {
    display: inline-flex;
    padding: 4px 10px;
    border-radius: 999px;
    background: rgba(4, 7, 20, 0.8);
    border: 1px solid rgba(255, 255, 255, 0.16);
    font-size: 0.7rem;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--accent-soft);
    margin-bottom: 14px;
}

.hero-title {
    margin: 0 0 12px;
    font-family: 'Bebas Neue', system-ui, sans-serif;
    font-size: clamp(2.7rem, 4vw, 3.7rem);
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.hero-highlight {
    color: var(--accent-soft);
}

.hero-text {
    margin: 0 0 20px;
    color: var(--text-soft);
    font-size: 0.98rem;
    line-height: 1.7;
}

.hero-name {
    color: var(--accent);
    font-weight: 600;
}

.hero-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    margin-bottom: 16px;
}

.hero-small {
    margin: 0;
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* HERO RIGHT */

.hero-right {
    display: flex;
    justify-content: center;
}

.hero-cover-card {
    padding: 14px;
    border-radius: var(--radius-xl);
    background: radial-gradient(circle at top left, rgba(255, 135, 78, 0.35), transparent 60%),
                radial-gradient(circle at bottom right, rgba(80, 120, 255, 0.35), transparent 60%),
                rgba(8, 9, 22, 0.95);
    border: 1px solid rgba(255, 255, 255, 0.15);
    box-shadow: var(--shadow-soft);
    max-width: 320px;
}

.hero-cover-img {
    border-radius: var(--radius-lg);
    border: 1px solid rgba(255, 255, 255, 0.18);
}

.hero-cover-caption {
    margin: 10px 4px 0;
    font-size: 0.78rem;
    color: var(--text-muted);
    text-align: center;
}

/* BOUTONS GLOBAUX */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 10px 20px;
    border-radius: 999px;
    border: 1px solid transparent;
    font-size: 0.86rem;
    font-weight: 500;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    cursor: pointer;
    transition: transform 0.16s ease, box-shadow 0.16s ease, background 0.16s ease, border-color 0.16s ease;
    white-space: nowrap;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent), var(--accent-blue));
    color: #fff;
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.6);
}

.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.7);
}

.btn-ghost {
    background: rgba(4, 7, 20, 0.7);
    border-color: rgba(255, 255, 255, 0.18);
    color: var(--text-soft);
}

.btn-ghost:hover {
    background: rgba(7, 10, 30, 0.95);
    color: var(--text-main);
}

/* PACKS */

.packs-section {
    backdrop-filter: blur(10px);
}

.packs-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 28px;
    align-items: stretch;
}

.pack-card {
    position: relative;
    padding: 22px 22px 26px;
    border-radius: var(--radius-xl);
    background: var(--card-bg-soft);
    border: 1px solid var(--card-border);
    box-shadow: var(--shadow-soft);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.pack-classic {
    background:
        radial-gradient(circle at top left, rgba(78, 113, 255, 0.25), transparent 70%),
        var(--card-bg-soft);
}

.pack-digital {
    background:
        radial-gradient(circle at bottom, rgba(149, 87, 255, 0.25), transparent 70%),
        var(--card-bg-soft);
}

.pack-collector {
    background:
        radial-gradient(circle at top right, rgba(255, 117, 78, 0.3), transparent 70%),
        radial-gradient(circle at bottom left, rgba(62, 139, 255, 0.3), transparent 70%),
        var(--card-bg);
}

.pack-highlight {
    border: 1px solid rgba(255, 255, 255, 0.28);
    transform: translateY(-6px);
}

.pack-highlight:hover {
    transform: translateY(-8px);
}

.pack-badge {
    position: absolute;
    top: 16px;
    right: 18px;
    padding: 4px 10px;
    border-radius: 999px;
    background: rgba(0, 0, 0, 0.75);
    border: 1px solid rgba(255, 255, 255, 0.3);
    font-size: 0.68rem;
    letter-spacing: 0.16em;
    text-transform: uppercase;
}

.pack-header {
    margin-bottom: 18px;
}

.pack-title {
    margin: 0;
    font-family: 'Bebas Neue', system-ui, sans-serif;
    font-size: 1.5rem;
    letter-spacing: 0.16em;
    text-transform: uppercase;
}

.pack-price {
    margin: 4px 0 0;
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--accent-soft);
}

.pack-features {
    list-style: none;
    padding: 0;
    margin: 12px 0 18px;
    font-size: 0.9rem;
    color: var(--text-soft);
}

.pack-features li {
    display: flex;
    align-items: center;
    gap: 8px;
    padding-block: 5px;
}

.pack-icon {
    width: 26px;
    height: 26px;
    border-radius: 999px;
    background: rgba(0, 0, 0, 0.35);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 0.85rem;
    flex-shrink: 0;
}

.pack-visual {
    margin-top: auto;
    margin-bottom: 16px;
    display: flex;
    justify-content: center;
}

.pack-img {
    max-width: 180px;
    border-radius: var(--radius-md);
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: var(--shadow-small);
}

.btn-pack {
    width: 100%;
    margin-top: auto;
    font-size: 0.8rem;
    background: rgba(0, 0, 0, 0.75);
    border-color: rgba(255, 255, 255, 0.18);
    color: var(--text-main);
}

.btn-pack-main {
    background: linear-gradient(135deg, var(--accent), var(--accent-blue));
    border-color: transparent;
}

.btn-pack:hover {
    transform: translateY(-1px);
}

.packs-note {
    margin-top: 22px;
    font-size: 0.8rem;
    color: var(--text-muted);
    text-align: center;
}

/* UNIVERS */

.universe-section {
    background: radial-gradient(circle at top, rgba(255, 112, 75, 0.12), transparent 55%);
}

.universe-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr);
    gap: 40px;
    align-items: flex-start;
}

.universe-subtitle {
    margin-top: 0;
    margin-bottom: 12px;
    font-size: 1.1rem;
}

.universe-text p {
    margin: 0 0 12px;
    color: var(--text-soft);
    font-size: 0.95rem;
    line-height: 1.7;
}

.universe-list {
    list-style: none;
    padding: 0;
    margin: 12px 0 0;
    font-size: 0.9rem;
    color: var(--text-soft);
}

.universe-list li::before {
    content: "• ";
    color: var(--accent-soft);
}

.universe-visuals {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
}

.universe-card {
    border-radius: var(--radius-lg);
    background: rgba(6, 9, 25, 0.9);
    border: 1px solid rgba(255, 255, 255, 0.12);
    overflow: hidden;
    box-shadow: var(--shadow-small);
}

.universe-card.small {
    aspect-ratio: 3 / 4;
}

.universe-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* AUTEUR */

.author-section {
    background: radial-gradient(circle at bottom, rgba(75, 123, 255, 0.12), transparent 55%);
}

.author-grid {
    display: grid;
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.2fr);
    gap: 40px;
    align-items: center;
}

.author-avatar {
    max-width: 260px;
}

.author-img {
    border-radius: var(--radius-xl);
    border: 1px solid rgba(255, 255, 255, 0.18);
    box-shadow: var(--shadow-soft);
    object-fit: cover;
}

.author-name {
    margin: 0 0 10px;
    font-size: 1.4rem;
}

.author-text p {
    margin: 0 0 10px;
    color: var(--text-soft);
    font-size: 0.95rem;
}

.author-highlight {
    margin-top: 6px;
    font-size: 0.92rem;
    color: var(--accent-soft);
}

.author-cta {
    margin-top: 16px;
}

/* FOOTER */

/* FOOTER (version fine & moderne) */

.site-footer {
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    background: rgba(5, 7, 18, 0.9);
    padding: 20px min(7vw, 80px);
    backdrop-filter: blur(12px);
}

.footer-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
    flex-wrap: wrap;
}

.footer-logo {
    margin: 0;
    font-family: 'Bebas Neue', system-ui, sans-serif;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    font-size: 1.1rem;
    color: var(--text-main);
}

.footer-text {
    margin: 2px 0;
    font-size: 0.78rem;
    color: var(--text-muted);
}

.footer-link {
    color: var(--accent-soft);
    text-decoration: none;
    transition: 0.2s;
}

.footer-link:hover {
    color: var(--accent);
}

.footer-center {
    text-align: center;
}

@media (max-width: 768px) {
    .footer-inner {
        flex-direction: column;
        text-align: center;
    }
}


/* RESPONSIVE */

@media (max-width: 1024px) {
    .hero-content {
        grid-template-columns: minmax(0, 1fr);
        gap: 32px;
    }

    .hero-right {
        justify-content: flex-start;
    }

    .packs-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .author-grid,
    .universe-grid {
        grid-template-columns: minmax(0, 1fr);
    }

    .author-avatar {
        max-width: 220px;
    }
}

@media (max-width: 768px) {
    .nav-inner {
        justify-content: space-between;
        gap: 10px;
    }

    .main-nav {
        gap: 10px;
        padding-inline: 10px;
    }

    .nav-link {
        font-size: 0.7rem;
        letter-spacing: 0.12em;
    }

    section {
        padding-inline: 18px;
        padding-block: 60px;
    }

    .packs-grid {
        grid-template-columns: minmax(0, 1fr);
    }

    .pack-highlight {
        transform: none;
    }

    .hero-section {
        padding-top: calc(70px + var(--nav-height));
    }

    .hero-cover-card {
        margin-inline: auto;
    }

    .universe-visuals {
        grid-template-columns: minmax(0, 1fr);
    }

    .footer-inner {
        flex-direction: column;
    }
}

@media (max-width: 480px) {
    .main-nav {
        display: none; /* si tu veux, tu feras un burger plus tard */
    }

    .logo-text {
        padding-inline: 10px;
    }

    .hero-title {
        font-size: 2.3rem;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: stretch;
    }
}