/* base.css — estilos compartilhados do Acervo (paleta, fundo, header, sidebar, hero, títulos) */

:root {
    --color-primary: #8B0000;
    --color-primary-dark: #6B0000;
    --color-primary-light: #FF0000;
    --color-primary-transparent: rgba(139, 0, 0, 0.2);

    --color-text-light: #F0F0F0;
    --color-text-dark: #000000;
    --color-text-muted: #888;
    --color-text-gray: #2A2A2A;

    --color-bg-dark: #000000;
    --color-bg-darker: #0d0d0d;
    --color-bg-card: rgba(17, 17, 17, 0.9);
    --color-bg-overlay: rgba(0, 0, 0, 0.85);
    --color-bg-input: #1A1A1A;
    --color-bg-search: rgba(15, 15, 15, 0.9);

    --color-border: #8B0000;
    --color-border-light: rgba(139, 0, 0, 0.3);

    --shadow-primary: 0 0 15px rgba(139, 0, 0, 0.5);
    --shadow-hover: 0 0 30px rgba(255, 0, 0, 0.5);

    --font-main: 'Cinzel Decorative', serif;
    --font-secondary: 'Cinzel', serif;
    --font-body: 'Times New Roman', Times, serif;
}

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

html { scroll-behavior: smooth; }

body {
    background: var(--color-bg-dark);
    color: var(--color-text-light);
    font-family: var(--font-body);
    font-size: 1.1rem;
    overflow-x: hidden;
}

body.no-scroll { overflow: hidden; }

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

/* ============ FUNDO ============ */
.bg-video-wrap {
    position: fixed;
    inset: 0;
    z-index: -2;
    overflow: hidden;
    background: var(--color-bg-dark);
}
.bg-video {
    position: absolute;
    top: 50%; left: 50%;
    transform: translate(-50%, -50%);
    min-width: 100%; min-height: 100%;
    object-fit: cover;
}
/* Blur escuro por cima do vídeo: garante leitura do texto branco */
.bg-blur {
    position: fixed;
    inset: 0;
    z-index: -1;
    background: rgba(0, 0, 0, 0.72);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    pointer-events: none;
}

/* ============ HEADER ============ */
.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: var(--color-bg-overlay);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-border-light);
    padding: 1rem 1.5rem 0.9rem;
}

.site-title {
    display: block;
    text-align: center;
    font-family: var(--font-main);
    font-weight: 700;
    font-size: 1.9rem;
    letter-spacing: 2px;
    color: var(--color-text-light);
    text-shadow: var(--shadow-primary);
}
.site-title span { color: var(--color-primary-light); }

.nav-desktop {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
    gap: 1.5rem;
    max-width: 1200px;
    margin: 0.9rem auto 0;
}
.nav-group { display: flex; gap: 2rem; align-items: center; }
.nav-left { justify-content: flex-start; }
.nav-center { justify-content: center; }
.nav-right { justify-content: flex-end; }

.nav-link {
    font-family: var(--font-secondary);
    font-size: 0.95rem;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    color: var(--color-text-light);
    padding: 6px 0;
    border-bottom: 1px solid transparent;
    transition: color .25s, border-color .25s;
}
.nav-link:hover,
.nav-link.ativo { color: var(--color-primary-light); border-color: var(--color-primary); }

/* Balãozinho "Cadastre-se" (só aparece deslogado) */
.account-wrap { position: relative; display: inline-block; }
.signup-bubble {
    position: absolute;
    top: calc(100% + 12px);
    right: 0;
    white-space: nowrap;
    background: var(--color-primary);
    color: var(--color-text-light);
    font-family: var(--font-secondary);
    font-size: 0.72rem;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    padding: 6px 12px;
    border-radius: 4px;
    box-shadow: var(--shadow-primary);
    pointer-events: none;
    animation: bubble-float 2.4s ease-in-out infinite;
}
.signup-bubble::before {
    content: "";
    position: absolute;
    bottom: 100%;
    right: 22px;
    border: 6px solid transparent;
    border-bottom-color: var(--color-primary);
}
.account-wrap:not(.logged-out) .signup-bubble { display: none; }
@keyframes bubble-float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-3px); }
}

.btn-livraria {
    font-family: var(--font-secondary);
    font-weight: 600;
    font-size: 0.9rem;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    background: var(--color-primary);
    color: var(--color-text-light);
    border: 1px solid var(--color-primary);
    padding: 10px 24px;
    border-radius: 2px;
    transition: all .3s ease;
    display: inline-block;
    text-align: center;
}
.btn-livraria:hover {
    background: var(--color-primary-dark);
    box-shadow: var(--shadow-hover);
}

.menu-btn {
    display: none;
    margin: 0.8rem auto 0;
    background: transparent;
    border: 1px solid var(--color-border);
    color: var(--color-text-light);
    font-family: var(--font-secondary);
    letter-spacing: 2px;
    text-transform: uppercase;
    font-size: 0.85rem;
    padding: 8px 22px;
    cursor: pointer;
    transition: all .25s;
}
.menu-btn:hover { background: var(--color-primary-transparent); box-shadow: var(--shadow-primary); }
.menu-btn i { margin-right: 8px; }

/* ============ SIDEBAR (mobile) ============ */
.sidebar-backdrop {
    position: fixed; inset: 0;
    background: rgba(0, 0, 0, 0.7);
    opacity: 0; visibility: hidden;
    transition: opacity .3s, visibility .3s;
    z-index: 200;
}
.sidebar-backdrop.open { opacity: 1; visibility: visible; }

.sidebar {
    position: fixed;
    top: 0; left: 0; bottom: 0;
    width: min(310px, 86vw);
    background: var(--color-bg-darker);
    border-right: 1px solid var(--color-border);
    transform: translateX(-100%);
    transition: transform .35s ease;
    z-index: 210;
    padding: 1.4rem 1.4rem 2rem;
    display: flex;
    flex-direction: column;
    gap: 1.6rem;
    overflow-y: auto;
}
.sidebar.open { transform: translateX(0); box-shadow: var(--shadow-primary); }

.sidebar-close {
    align-self: flex-end;
    background: none;
    border: none;
    color: var(--color-text-muted);
    font-size: 1.6rem;
    cursor: pointer;
    line-height: 1;
}
.sidebar-close:hover { color: var(--color-primary-light); }

.sidebar .btn-livraria { width: 100%; }

.sidebar-profile {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.7rem;
    padding: 1.2rem 0;
    border-top: 1px solid var(--color-border-light);
    border-bottom: 1px solid var(--color-border-light);
}
.avatar {
    width: 84px; height: 84px;
    border-radius: 50%;
    border: 2px solid var(--color-border);
    background: var(--color-bg-input);
    display: flex; align-items: center; justify-content: center;
    color: var(--color-text-muted);
    font-size: 2.2rem;
    box-shadow: var(--shadow-primary);
    overflow: hidden;
}
.avatar img { width: 100%; height: 100%; object-fit: cover; }
.profile-action {
    font-family: var(--font-secondary);
    letter-spacing: 1.5px;
    text-transform: uppercase;
    font-size: 0.85rem;
    color: var(--color-text-light);
    border: 1px solid var(--color-border);
    padding: 6px 18px;
    transition: all .25s;
}
.profile-action:hover { background: var(--color-primary-transparent); box-shadow: var(--shadow-primary); }

.sidebar-nav { display: flex; flex-direction: column; gap: 0.3rem; }
.sidebar-nav .nav-link { padding: 12px 4px; border-bottom: 1px solid var(--color-border-light); }

/* ============ HERO + TÍTULOS ============ */
.hero {
    min-height: 70vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 4rem 1.5rem;
}
.hero-content {
    max-width: 820px;
    padding: 2.8rem 2rem;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border-light);
    box-shadow: var(--shadow-primary);
    border-radius: 6px;
}
.hero h1 {
    font-family: var(--font-main);
    font-weight: 700;
    font-size: 2.8rem;
    line-height: 1.25;
    letter-spacing: 2px;
    margin-bottom: 1.2rem;
}
.hero h1 span { color: var(--color-primary-light); text-shadow: 0 0 12px rgba(255, 0, 0, 0.45); }
.hero p { font-size: 1.3rem; color: #d6d6d6; line-height: 1.6; }

.section-title {
    font-family: var(--font-main);
    font-weight: 700;
    font-size: 2.2rem;
    text-align: center;
    letter-spacing: 2px;
    margin-bottom: 0.6rem;
}
.section-divider {
    width: 110px; height: 2px;
    margin: 0 auto 3rem;
    background: linear-gradient(90deg, transparent, var(--color-primary), transparent);
}

.state-msg {
    grid-column: 1 / -1;
    text-align: center;
    color: var(--color-text-muted);
    font-style: italic;
    padding: 2rem 0;
}

/* ============ RESPONSIVO ============ */
@media (max-width: 900px) {
    .nav-desktop { display: none; }
    .menu-btn { display: block; }
    .site-title { font-size: 1.35rem; }
    .hero h1 { font-size: 1.9rem; }
    .hero p { font-size: 1.1rem; }
    .section-title { font-size: 1.7rem; }
}
@media (min-width: 901px) {
    .sidebar, .sidebar-backdrop { display: none; }
}