/* ==========================================================================
   Design System & Configurações Globais (Trailercar Help Desk)
   ========================================================================== */

:root {
    /* Paleta de Cores HSL Harmoniosa e Luxuosa */
    --color-bg: #090a0f;
    --color-bg-card: hsla(220, 15%, 12%, 0.7);
    --color-bg-header: hsla(220, 18%, 8%, 0.85);
    
    --color-gold: #d4af37;
    --color-gold-hover: #f3e5ab;
    --color-gold-dark: #aa840a;
    
    --color-text-primary: #f8fafc;
    --color-text-secondary: #94a3b8;
    --color-text-muted: #64748b;
    
    --color-success: #10b981;
    --color-whatsapp: #25d366;
    --color-whatsapp-dark: #128c7e;
    
    /* Outros Tokens */
    --border-radius: 16px;
    --border-radius-sm: 8px;
    --border-light: 1px solid rgba(255, 255, 255, 0.08);
    --border-gold: 1px solid rgba(212, 175, 55, 0.25);
    --shadow-soft: 0 10px 30px -10px rgba(0, 0, 0, 0.7);
    --shadow-glow: 0 0 20px rgba(212, 175, 55, 0.15);
    
    --font-heading: 'Cinzel', serif;
    --font-body: 'Inter', sans-serif;
    --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    background-color: var(--color-bg);
    color: var(--color-text-primary);
    font-family: var(--font-body);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

/* Scrollbar Customizada */
::-webkit-scrollbar {
    width: 6px;
}
::-webkit-scrollbar-track {
    background: var(--color-bg);
}
::-webkit-scrollbar-thumb {
    background: var(--color-gold-dark);
    border-radius: 10px;
}

/* Layout do App */
.app-container {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    max-width: 640px; /* Layout focado em visualização mobile/whatsapp */
    margin: 0 auto;
    background-color: #0d0e14;
    border-left: var(--border-light);
    border-right: var(--border-light);
    box-shadow: 0 0 50px rgba(0, 0, 0, 0.8);
    position: relative;
}

/* Header Estilo Glassmorphism Fixo */
.app-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background-color: var(--color-bg-header);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: var(--border-light);
    padding: 16px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-family: var(--font-heading);
    font-size: 1.4rem;
    font-weight: 800;
    letter-spacing: 2px;
    color: var(--color-text-primary);
}

.logo span {
    color: var(--color-gold);
    text-shadow: var(--shadow-glow);
}

.subtitle {
    font-size: 0.65rem;
    font-weight: 500;
    letter-spacing: 3px;
    color: var(--color-text-secondary);
    margin-top: -2px;
}

/* Indicador de Status Online */
.status-indicator {
    display: flex;
    align-items: center;
    gap: 8px;
    background-color: rgba(16, 185, 129, 0.1);
    border: 1px solid rgba(16, 185, 129, 0.2);
    padding: 4px 10px;
    border-radius: 20px;
}

.status-dot {
    width: 8px;
    height: 8px;
    background-color: var(--color-success);
    border-radius: 50%;
    box-shadow: 0 0 10px var(--color-success);
    animation: pulse 2s infinite;
}

.status-text {
    font-size: 0.7rem;
    font-weight: 600;
    color: var(--color-success);
}

@keyframes pulse {
    0% { transform: scale(0.95); opacity: 0.7; }
    50% { transform: scale(1.1); opacity: 1; }
    100% { transform: scale(0.95); opacity: 0.7; }
}

/* Conteúdo Principal */
.app-main {
    flex-grow: 1;
    padding: 24px 20px;
}

/* Estilo de Transição de Visualização (SPA) */
.view {
    display: none;
    opacity: 0;
    transform: translateY(15px);
    transition: opacity 0.4s ease, transform 0.4s ease;
}

.view.active {
    display: block;
    opacity: 1;
    transform: translateY(0);
}

/* Banner de Boas-vindas */
.welcome-banner {
    margin-bottom: 24px;
}

.welcome-banner h2 {
    font-family: var(--font-heading);
    font-size: 1.4rem;
    color: var(--color-text-primary);
    margin-bottom: 8px;
    font-weight: 600;
}

.welcome-banner p {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
}

/* Barra de Busca Dinâmica */
.search-container {
    margin-bottom: 24px;
}

.search-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.search-icon {
    position: absolute;
    left: 16px;
    font-size: 1.1rem;
    color: var(--color-text-muted);
    pointer-events: none;
}

#search-input {
    width: 100%;
    padding: 14px 16px 14px 46px;
    background-color: var(--color-bg-card);
    border: var(--border-light);
    border-radius: var(--border-radius);
    color: var(--color-text-primary);
    font-family: var(--font-body);
    font-size: 0.95rem;
    outline: none;
    transition: var(--transition-smooth);
}

#search-input:focus {
    border-color: var(--color-gold);
    box-shadow: 0 0 15px rgba(212, 175, 55, 0.1);
    background-color: rgba(20, 22, 30, 0.9);
}

/* Grade de Tópicos */
.topics-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 16px;
    margin-bottom: 24px;
}

/* Card de Tópico Individual */
.topic-card {
    background-color: var(--color-bg-card);
    border: var(--border-light);
    border-radius: var(--border-radius);
    padding: 18px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    transition: var(--transition-smooth);
    position: relative;
    overflow: hidden;
}

.topic-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background-color: var(--color-gold-dark);
    opacity: 0.5;
    transition: var(--transition-smooth);
}

.topic-card:hover {
    transform: translateY(-2px);
    background-color: rgba(22, 25, 36, 0.8);
    border-color: var(--color-gold);
    box-shadow: var(--shadow-glow);
}

.topic-card:hover::before {
    background-color: var(--color-gold);
    opacity: 1;
}

.topic-info-wrapper {
    display: flex;
    align-items: center;
    gap: 16px;
}

.topic-icon {
    font-size: 1.8rem;
}

.topic-details h3 {
    font-family: var(--font-body);
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-text-primary);
}

.topic-details p {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    margin-top: 2px;
}

.arrow-icon {
    font-size: 1.1rem;
    color: var(--color-gold);
    transition: transform 0.3s ease;
}

.topic-card:hover .arrow-icon {
    transform: translateX(4px);
}

/* Card de Suporte Humano */
.human-support-card {
    background: linear-gradient(135deg, rgba(20, 22, 32, 0.95), rgba(9, 10, 15, 0.95));
    border: var(--border-gold);
    border-radius: var(--border-radius);
    padding: 22px;
    text-align: center;
    margin-top: 32px;
    box-shadow: var(--shadow-soft);
}

.support-info h3 {
    font-family: var(--font-heading);
    font-size: 1.15rem;
    color: var(--color-gold);
    margin-bottom: 6px;
}

.support-info p {
    font-size: 0.85rem;
    color: var(--color-text-secondary);
    margin-bottom: 18px;
}

/* Botões de Ação */
.btn-primary, .btn-secondary, .btn-whatsapp {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    width: 100%;
    padding: 14px 20px;
    font-family: var(--font-body);
    font-size: 0.95rem;
    font-weight: 600;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition-smooth);
    text-decoration: none;
    outline: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-gold), var(--color-gold-dark));
    color: #000;
    border: none;
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--color-gold-hover), var(--color-gold));
    transform: translateY(-1px);
    box-shadow: 0 4px 15px rgba(212, 175, 55, 0.3);
}

.btn-secondary {
    background-color: transparent;
    color: var(--color-text-secondary);
    border: var(--border-light);
}

.btn-secondary:hover {
    background-color: rgba(255, 255, 255, 0.05);
    color: var(--color-text-primary);
    border-color: var(--color-text-secondary);
}

.btn-whatsapp {
    background-color: var(--color-whatsapp);
    color: #fff;
    border: none;
}

.btn-whatsapp:hover {
    background-color: var(--color-whatsapp-dark);
    transform: translateY(-1px);
    box-shadow: 0 4px 15px rgba(37, 211, 102, 0.3);
}

/* Estilos da Tela de Visualizador de Ajuda */
#help-view #btn-back-menu {
    margin-bottom: 24px;
    padding: 10px 16px;
    font-size: 0.85rem;
    width: auto;
}

#help-view #btn-back-menu .arrow {
    font-size: 1.1rem;
    margin-right: 4px;
}

.topic-header {
    margin-bottom: 20px;
}

.topic-badge {
    display: inline-block;
    font-size: 0.65rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--color-gold);
    background-color: rgba(212, 175, 55, 0.1);
    border: 1px solid rgba(212, 175, 55, 0.2);
    padding: 4px 10px;
    border-radius: 12px;
    margin-bottom: 8px;
}

#topic-title {
    font-family: var(--font-heading);
    font-size: 1.6rem;
    color: var(--color-text-primary);
    line-height: 1.3;
}

/* Card do Vídeo */
.video-card {
    background-color: var(--color-bg-card);
    border: var(--border-light);
    border-radius: var(--border-radius);
    padding: 16px;
    margin-bottom: 24px;
    box-shadow: var(--shadow-soft);
}

.video-container {
    position: relative;
    width: 100%;
    padding-top: 56.25%; /* Aspect Ratio 16:9 */
    background-color: #000;
    border-radius: calc(var(--border-radius) - 6px);
    overflow: hidden;
    margin-bottom: 12px;
}

.video-container video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: none;
    object-fit: cover;
}

.video-info {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.78rem;
    color: var(--color-text-secondary);
    line-height: 1.4;
}

.video-play-icon {
    font-size: 1.2rem;
    color: var(--color-gold);
}

/* Instruções Passo a Passo */
.instructions-card {
    background-color: var(--color-bg-card);
    border: var(--border-light);
    border-radius: var(--border-radius);
    padding: 20px;
    margin-bottom: 32px;
}

.instructions-card h3 {
    font-family: var(--font-heading);
    font-size: 1.1rem;
    color: var(--color-gold);
    margin-bottom: 18px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    padding-bottom: 10px;
}

.steps-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.step-item {
    display: flex;
    gap: 16px;
    align-items: flex-start;
}

.step-number {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    background-color: rgba(212, 175, 55, 0.12);
    border: 1px solid rgba(212, 175, 55, 0.3);
    color: var(--color-gold);
    border-radius: 50%;
    font-weight: 700;
    font-size: 0.85rem;
    flex-shrink: 0;
    margin-top: 2px;
}

.step-content {
    font-size: 0.9rem;
    color: var(--color-text-primary);
}

.step-content strong {
    color: var(--color-gold-hover);
}

/* Alerta de Cuidado (Atenção) */
.alert-box {
    margin-top: 20px;
    background-color: rgba(239, 68, 68, 0.08);
    border: 1px solid rgba(239, 68, 68, 0.25);
    border-radius: var(--border-radius-sm);
    padding: 14px 16px;
    display: flex;
    gap: 12px;
    align-items: flex-start;
}

.alert-icon {
    font-size: 1.2rem;
}

.alert-text {
    font-size: 0.82rem;
    color: #fca5a5;
    line-height: 1.4;
}

/* Footer de Ação */
.action-footer {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-top: 24px;
}

.action-footer .btn-secondary {
    order: 2; /* No mobile, o botão secundário fica embaixo */
}

.action-footer .btn-primary {
    order: 1;
}

/* Footer do App */
.app-footer {
    text-align: center;
    padding: 24px 20px;
    border-top: var(--border-light);
    margin-top: auto;
}

.app-footer p {
    font-size: 0.7rem;
    color: var(--color-text-muted);
}

/* ==========================================================================
   Responsividade e Ajustes de Tablet
   ========================================================================== */
@media (min-width: 480px) {
    .action-footer {
        flex-direction: row;
        justify-content: space-between;
    }
    
    .action-footer .btn-primary {
        flex-grow: 1.5;
        order: 2;
    }
    
    .action-footer .btn-secondary {
        flex-grow: 1;
        width: auto;
        order: 1;
    }
}