/* =========================================================================
   LIVRIASOCIAL — Design Livria Ultra-Coloré, Animé, Gamifié (PC & Mobile)
   ========================================================================= */

:root {
    --ls-primary: #7c4dff;
    --ls-pink: #ff5fa2;
    --ls-amber: #f59e0b;
    --ls-emerald: #10b981;
    --ls-coral: #ff6b6b;
    --ls-sky: #0ea5e9;
    --ls-ink: #1d1533;
    --ls-muted: #695e85;
    --ls-bg: #fdf8ff;
    --ls-card: rgba(255, 255, 255, 0.92);
    --ls-border: rgba(124, 77, 255, 0.16);
    --ls-radius: 22px;
    --ls-font: "Plus Jakarta Sans", "Segoe UI Variable", system-ui, -apple-system, sans-serif;
}

*, *::before, *::after {
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
}

html, body {
    margin: 0;
    padding: 0;
    font-family: var(--ls-font);
    color: var(--ls-ink);
    background:
        radial-gradient(circle at 8% 12%, rgba(255, 95, 162, 0.14) 0%, transparent 38%),
        radial-gradient(circle at 92% 18%, rgba(124, 77, 255, 0.15) 0%, transparent 40%),
        radial-gradient(circle at 50% 88%, rgba(245, 158, 11, 0.12) 0%, transparent 45%),
        linear-gradient(180deg, #fdf8ff 0%, #f7f2ff 50%, #fff5f9 100%);
    background-attachment: fixed;
    min-height: 100vh;
    overflow-x: hidden;
}

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

/* Barre secondaire colorée LivriaSocial (Navigation interne rapide) */
.ls-subbar {
    position: sticky;
    top: 64px;
    z-index: 900;
    background: rgba(255, 255, 255, 0.86);
    backdrop-filter: saturate(180%) blur(16px);
    -webkit-backdrop-filter: saturate(180%) blur(16px);
    border-bottom: 2px solid rgba(124, 77, 255, 0.14);
    padding: 8px 16px;
}

.ls-subbar__inner {
    max-width: 1260px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    overflow-x: auto;
    scrollbar-width: none;
}
.ls-subbar__inner::-webkit-scrollbar { display: none; }

.ls-subnav {
    display: flex;
    align-items: center;
    gap: 8px;
}

.ls-subpill {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    padding: 8px 16px;
    border-radius: 999px;
    font-weight: 800;
    font-size: 0.88rem;
    color: var(--ls-ink);
    background: rgba(124, 77, 255, 0.08);
    border: 1.5px solid transparent;
    white-space: nowrap;
    transition: transform 0.18s cubic-bezier(.2, .9, .3, 1.4), background 0.18s, box-shadow 0.18s;
}
.ls-subpill:hover {
    transform: translateY(-2px);
    background: rgba(124, 77, 255, 0.14);
}
.ls-subpill.active {
    background: linear-gradient(135deg, #7c4dff 0%, #ff5fa2 100%);
    color: #fff;
    box-shadow: 0 6px 18px -4px rgba(124, 77, 255, 0.45);
}

.ls-cagnotte-pill {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 7px 15px;
    border-radius: 999px;
    background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
    border: 1.5px solid #f59e0b;
    color: #92400e;
    font-weight: 800;
    font-size: 0.84rem;
    white-space: nowrap;
    box-shadow: 0 4px 12px rgba(245, 158, 11, 0.22);
    animation: ls-bob 3.5s ease-in-out infinite;
}

@keyframes ls-bob {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-2px); }
}

@keyframes ls-pop {
    0% { transform: scale(0.92); opacity: 0; }
    100% { transform: scale(1); opacity: 1; }
}

/* Conteneur principal */
.ls-container {
    max-width: 1260px;
    margin: 0 auto;
    padding: 20px 16px 96px;
}

/* Bannière Hero Gamifiée */
.ls-hero-banner {
    position: relative;
    overflow: hidden;
    border-radius: 26px;
    padding: 24px 28px;
    margin-bottom: 22px;
    background: linear-gradient(125deg, #7c4dff 0%, #ec4899 52%, #f59e0b 100%);
    color: #ffffff;
    box-shadow: 0 18px 42px -12px rgba(124, 77, 255, 0.42);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    flex-wrap: wrap;
}
.ls-hero-banner::before {
    content: "📚 ✨ 🌈 💬 🏆";
    position: absolute;
    right: -10px;
    bottom: -18px;
    font-size: 4.2rem;
    opacity: 0.14;
    pointer-events: none;
    transform: rotate(-8deg);
}

.ls-hero-banner h1 {
    margin: 0 0 6px;
    font-size: clamp(1.4rem, 2.8vw, 2rem);
    font-weight: 900;
    letter-spacing: -0.02em;
}
.ls-hero-banner p {
    margin: 0;
    font-size: 0.95rem;
    opacity: 0.95;
    max-width: 680px;
    line-height: 1.45;
}

.ls-hero-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 12px;
}
.ls-hero-badge {
    background: rgba(255, 255, 255, 0.22);
    backdrop-filter: blur(8px);
    border: 1px solid rgba(255, 255, 255, 0.4);
    padding: 6px 13px;
    border-radius: 999px;
    font-size: 0.8rem;
    font-weight: 800;
}

/* Grille 3 colonnes sur PC, 1 colonne fluide sur Mobile */
.ls-grid {
    display: grid;
    grid-template-columns: 290px minmax(0, 1fr) 320px;
    gap: 22px;
    align-items: start;
}

@media (max-width: 1120px) {
    .ls-grid {
        grid-template-columns: minmax(0, 1fr) 310px;
    }
    .ls-col-left {
        display: none;
    }
}

@media (max-width: 820px) {
    .ls-subbar {
        top: 0;
        position: relative;
        padding: 8px 10px;
    }
    .ls-grid {
        grid-template-columns: minmax(0, 1fr);
    }
    .ls-hero-banner {
        padding: 18px 18px;
        border-radius: 20px;
    }
}

/* Cartes LivriaSocial */
.ls-card {
    background: var(--ls-card);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border: 1.5px solid var(--ls-border);
    border-radius: var(--ls-radius);
    padding: 18px;
    box-shadow: 0 10px 30px -10px rgba(29, 21, 51, 0.08);
    transition: transform 0.2s, box-shadow 0.2s, border-color 0.2s;
}
.ls-card--hover:hover {
    transform: translateY(-3px);
    box-shadow: 0 16px 36px -10px rgba(124, 77, 255, 0.18);
    border-color: rgba(124, 77, 255, 0.35);
}

/* Boutons colorés */
.ls-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 7px;
    padding: 10px 18px;
    border-radius: 999px;
    border: 0;
    font: 800 0.88rem var(--ls-font);
    cursor: pointer;
    transition: transform 0.16s cubic-bezier(.2, .9, .3, 1.4), box-shadow 0.16s, filter 0.16s;
    text-decoration: none;
}
.ls-btn:hover { transform: translateY(-2px); filter: brightness(1.04); }
.ls-btn:active { transform: scale(0.96); }

.ls-btn--primary {
    background: linear-gradient(135deg, #7c4dff 0%, #ff5fa2 100%);
    color: #fff;
    box-shadow: 0 8px 20px -6px rgba(124, 77, 255, 0.45);
}
.ls-btn--gold {
    background: linear-gradient(135deg, #f59e0b 0%, #ec4899 100%);
    color: #fff;
    box-shadow: 0 8px 20px -6px rgba(245, 158, 11, 0.42);
}
.ls-btn--emerald {
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    color: #fff;
    box-shadow: 0 8px 20px -6px rgba(16, 185, 129, 0.4);
}
.ls-btn--soft {
    background: rgba(124, 77, 255, 0.1);
    color: #7c4dff;
    border: 1px solid rgba(124, 77, 255, 0.2);
}

/* Inputs & formulaires */
.ls-input, .ls-textarea, .ls-select {
    width: 100%;
    padding: 11px 14px;
    border-radius: 14px;
    border: 1.5px solid rgba(124, 77, 255, 0.22);
    background: #ffffff;
    font: 600 0.92rem var(--ls-font);
    color: var(--ls-ink);
    outline: none;
    transition: border-color 0.18s, box-shadow 0.18s;
}
.ls-input:focus, .ls-textarea:focus, .ls-select:focus {
    border-color: #7c4dff;
    box-shadow: 0 0 0 3px rgba(124, 77, 255, 0.14);
}

/* Compositeur de publication */
.ls-composer-tabs {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 6px;
    margin-bottom: 12px;
}
@media (max-width: 560px) {
    .ls-composer-tabs {
        grid-template-columns: repeat(2, 1fr);
    }
}
.ls-composer-tab {
    border: 1.5px solid rgba(124, 77, 255, 0.16);
    background: #faf7ff;
    padding: 9px 10px;
    border-radius: 14px;
    font: 800 0.82rem var(--ls-font);
    color: var(--ls-ink);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    transition: all 0.15s;
}
.ls-composer-tab.active {
    background: linear-gradient(135deg, #7c4dff, #ff5fa2);
    color: #fff;
    border-color: transparent;
    box-shadow: 0 4px 12px rgba(124, 77, 255, 0.3);
}

/* Carte Livre recommandée dans un post ou message */
.ls-book-embed {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 14px;
    border-radius: 18px;
    background: linear-gradient(135deg, #faf5ff 0%, #fdf2f8 100%);
    border: 2px solid rgba(124, 77, 255, 0.22);
    margin-top: 12px;
    flex-wrap: wrap;
}
.ls-book-embed__cover {
    width: 66px;
    height: 94px;
    border-radius: 10px;
    object-fit: cover;
    box-shadow: 0 6px 14px rgba(0, 0, 0, 0.16);
    background: #ede9fe;
    display: grid;
    place-items: center;
    font-size: 1.8rem;
    flex-shrink: 0;
}
.ls-book-embed__info {
    flex: 1;
    min-width: 170px;
}
.ls-book-embed__title {
    font-weight: 900;
    font-size: 1rem;
    color: #1d1533;
}
.ls-book-embed__author {
    font-size: 0.84rem;
    color: #695e85;
    margin-top: 2px;
}

/* Barre de réactions gamifiée */
.ls-reactions {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
    margin-top: 14px;
    padding-top: 12px;
    border-top: 1px dashed rgba(124, 77, 255, 0.16);
}
.ls-react-btn {
    border: 1px solid rgba(124, 77, 255, 0.16);
    background: #faf7ff;
    padding: 6px 12px;
    border-radius: 999px;
    font: 800 0.82rem var(--ls-font);
    color: var(--ls-ink);
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 5px;
    transition: transform 0.15s cubic-bezier(.2, .9, .3, 1.5), background 0.15s;
}
.ls-react-btn:hover {
    transform: scale(1.08);
    background: #ede9fe;
    border-color: #7c4dff;
}
.ls-react-btn:active {
    transform: scale(0.92);
}

/* Barre de navigation mobile en bas de l'écran */
.ls-mobile-bottom-nav {
    display: none;
}
@media (max-width: 820px) {
    .ls-mobile-bottom-nav {
        position: fixed;
        left: 10px;
        right: 10px;
        bottom: calc(10px + env(safe-area-inset-bottom));
        z-index: 990;
        background: rgba(255, 255, 255, 0.94);
        backdrop-filter: saturate(180%) blur(18px);
        -webkit-backdrop-filter: saturate(180%) blur(18px);
        border: 1.5px solid rgba(124, 77, 255, 0.22);
        border-radius: 22px;
        box-shadow: 0 12px 34px rgba(29, 21, 51, 0.22);
        display: grid;
        grid-template-columns: repeat(5, 1fr);
        padding: 6px 4px;
    }
    .ls-mnav-item {
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 2px;
        padding: 6px 2px;
        border-radius: 14px;
        font-size: 0.68rem;
        font-weight: 800;
        color: #695e85;
        text-decoration: none;
    }
    .ls-mnav-item span:first-child {
        font-size: 1.2rem;
    }
    .ls-mnav-item.active {
        color: #7c4dff;
        background: rgba(124, 77, 255, 0.12);
    }
}

/* Messagerie Instantanée Riche */
.ls-chat-shell {
    display: grid;
    grid-template-columns: 330px minmax(0, 1fr);
    height: calc(100vh - 175px);
    min-height: 540px;
    max-height: 780px;
    background: rgba(255, 255, 255, 0.94);
    border: 2px solid rgba(124, 77, 255, 0.2);
    border-radius: 26px;
    overflow: hidden;
    box-shadow: 0 20px 50px -12px rgba(124, 77, 255, 0.22);
}

@media (max-width: 820px) {
    .ls-chat-shell {
        grid-template-columns: 1fr;
        height: calc(100dvh - 195px);
        min-height: 460px;
        border-radius: 20px;
    }
    .ls-chat-shell.mobile-thread-open .ls-chat-sidebar {
        display: none;
    }
    .ls-chat-shell:not(.mobile-thread-open) .ls-chat-main {
        display: none;
    }
}

.ls-chat-sidebar {
    border-right: 1.5px solid rgba(124, 77, 255, 0.14);
    display: flex;
    flex-direction: column;
    background: #fcfaff;
    overflow: hidden;
}

.ls-chat-main {
    display: flex;
    flex-direction: column;
    background:
        radial-gradient(circle at 20% 20%, rgba(124, 77, 255, 0.05), transparent 45%),
        radial-gradient(circle at 80% 80%, rgba(255, 95, 162, 0.06), transparent 45%),
        #ffffff;
    overflow: hidden;
}

.ls-chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: 18px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.ls-msg-bubble {
    max-width: min(76%, 520px);
    padding: 12px 15px;
    border-radius: 20px 20px 20px 6px;
    background: #f3efff;
    color: #1d1533;
    align-self: flex-start;
    box-shadow: 0 3px 10px rgba(29, 21, 51, 0.06);
    word-break: break-word;
}
.ls-msg-bubble.me {
    align-self: flex-end;
    border-radius: 20px 20px 6px 20px;
    background: linear-gradient(135deg, #7c4dff 0%, #ec4899 100%);
    color: #ffffff;
    box-shadow: 0 6px 18px -4px rgba(124, 77, 255, 0.4);
}