/* ===== RESET & BASE ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary: #2d6a4f;
    --primary-dark: #1b4332;
    --primary-light: #40916c;
    --primary-bg: #d8f3dc;
    --secondary: #52b788;
    --accent: #95d5b2;
    --gray-50: #f8faf9;
    --gray-100: #f1f3f2;
    --gray-200: #e2e8e4;
    --gray-300: #cbd5cf;
    --gray-600: #6b7a72;
    --gray-700: #4a5a52;
    --gray-800: #2d3a34;
    --gray-900: #1a2520;
    --white: #ffffff;
    --shadow: 0 4px 24px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 12px 48px rgba(0, 0, 0, 0.12);
    --radius: 16px;
    --radius-sm: 10px;
    --warning: #e9c46a;
    --danger: #e76f51;
    --info: #264653;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 0px;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    color: var(--gray-800);
    background: var(--gray-50);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

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

/* ===== HEADER ===== */
.header {
    padding: 16px 0;
    background: var(--white);
    border-bottom: 1px solid var(--gray-100);
    position: sticky;
    top: 0;
    z-index: 200;
}

.header .container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 800;
    font-size: 1.4rem;
    color: var(--primary-dark);
}

.logo-icon-img {
    height: 34px;
    width: auto;
    display: block;
    border-radius: 8px;
}

.header .btn-back {
    font-weight: 500;
    font-size: 0.95rem;
    color: var(--gray-600);
    transition: color 0.2s;
}

.header .btn-back:hover {
    color: var(--primary);
}

/* ===== LAYOUT ===== */
.guide-layout {
    display: flex;
    gap: 32px;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ===== SIDEBAR ===== */
.sidebar {
    width: 260px;
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    position: sticky;
    top: 85px;
    overflow: hidden;
    z-index: 100;
    flex-shrink: 0;
    align-self: flex-start;
}

.sidebar-header {
    padding: 20px 20px 16px;
    border-bottom: 1px solid var(--gray-100);
}

.sidebar-header h2 {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 2px;
}

.sidebar-header p {
    font-size: 0.78rem;
    color: var(--gray-600);
}

.sidebar-nav {
    padding: 8px 0;
}

.sidebar-nav a {
    display: flex;
    align-items: center;
    padding: 10px 20px;
    color: var(--gray-700);
    font-size: 0.88rem;
    font-weight: 500;
    transition: all 0.2s;
    border-left: 3px solid transparent;
}

.sidebar-nav a:hover,
.sidebar-nav a.active {
    background: var(--gray-50);
    border-left-color: var(--primary);
    color: var(--primary);
}

.sidebar-nav a .icon {
    margin-right: 10px;
    font-size: 0.9rem;
    width: 20px;
    text-align: center;
    color: var(--primary-light);
}

.sidebar-toggle {
    display: none;
    background: var(--primary);
    color: var(--white);
    border: none;
    padding: 10px 16px;
    font-size: 0.9rem;
    font-weight: 600;
    border-radius: var(--radius-sm);
    cursor: pointer;
    align-items: center;
    gap: 8px;
    font-family: inherit;
}

/* ===== MAIN CONTENT ===== */
.main-content {
    flex: 1;
    padding-top: 20px;
    min-width: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.main-content>* {
    max-width: 960px;
    width: 100%;
}

/* ===== COVER ===== */
.cover {
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
    color: var(--white);
    padding: 56px 40px;
    border-radius: var(--radius);
    text-align: center;
    margin-bottom: 48px;
}

.cover .app-icon {
    font-size: 3.5rem;
    margin-bottom: 16px;
    opacity: 0.9;
}

.cover .app-icon i {
    color: var(--white);
}

.cover h1 {
    font-size: 2rem;
    font-weight: 800;
    margin-bottom: 8px;
}

.cover .subtitle {
    font-size: 1.1rem;
    opacity: 0.9;
    margin-bottom: 12px;
}

.cover .version {
    font-size: 0.85rem;
    opacity: 0.6;
}

/* ===== SECTIONS ===== */
.section {
    margin-bottom: 56px;
    scroll-margin-top: 90px;
}

.section-header {
    background: var(--primary);
    color: var(--white);
    padding: 18px 24px;
    border-radius: var(--radius-sm) var(--radius-sm) 0 0;
}

.section-header h2 {
    font-size: 1.3rem;
    font-weight: 700;
}

.section-content {
    background: var(--white);
    padding: 28px;
    border-radius: 0 0 var(--radius-sm) var(--radius-sm);
    box-shadow: var(--shadow);
}

/* ===== TYPOGRAPHY ===== */
.section-content h3 {
    color: var(--primary);
    font-size: 1.1rem;
    font-weight: 700;
    margin: 24px 0 12px;
    padding-bottom: 8px;
    border-bottom: 2px solid var(--accent);
}

.section-content h3:first-child {
    margin-top: 0;
}

.section-content p {
    margin-bottom: 12px;
    color: var(--gray-700);
}

.section-content ul,
.section-content ol {
    margin: 10px 0 16px 20px;
    color: var(--gray-700);
}

.section-content li {
    margin-bottom: 8px;
}

/* ===== STEPS ===== */
.step {
    display: flex;
    gap: 14px;
    margin-bottom: 16px;
    padding: 14px 16px;
    background: var(--gray-50);
    border-radius: var(--radius-sm);
    border-left: 4px solid var(--secondary);
}

.step-number {
    background: var(--primary);
    color: var(--white);
    width: 30px;
    height: 30px;
    min-width: 30px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.85rem;
}

.step-content {
    flex: 1;
}

.step-content strong {
    display: block;
    margin-bottom: 4px;
    color: var(--gray-900);
    font-size: 0.95rem;
}

.step-content {
    font-size: 0.9rem;
    color: var(--gray-600);
}

/* ===== CALLOUTS ===== */
.tip {
    background: #d4edda;
    border-left: 4px solid var(--secondary);
    padding: 14px 18px;
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    margin: 16px 0;
    font-size: 0.9rem;
    color: var(--gray-800);
}

.tip::before {
    content: "Dica: ";
    font-weight: 700;
    color: var(--primary-dark);
}

.warning {
    background: #fff3cd;
    border-left: 4px solid var(--warning);
    padding: 14px 18px;
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    margin: 16px 0;
    font-size: 0.9rem;
    color: var(--gray-800);
}

.warning::before {
    content: "Atenção: ";
    font-weight: 700;
    color: #856404;
}

.important {
    background: #f8d7da;
    border-left: 4px solid var(--danger);
    padding: 14px 18px;
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    margin: 16px 0;
    font-size: 0.9rem;
    color: var(--gray-800);
}

.important::before {
    content: "Importante: ";
    font-weight: 700;
    color: #721c24;
}

/* ===== SCREENSHOT PLACEHOLDER ===== */
.screenshot {
    display: none; /* TODO: reativar quando tiver os screenshots reais */
    background: var(--gray-50);
    border: 2px dashed var(--gray-200);
    border-radius: var(--radius-sm);
    padding: 36px 20px;
    text-align: center;
    margin: 20px 0;
    color: var(--gray-600);
}

.screenshot .placeholder {
    font-size: 2rem;
    margin-bottom: 8px;
}

.screenshot .label {
    font-size: 0.85rem;
    font-style: italic;
}

/* ===== FEATURE CARDS ===== */
.feature-card {
    background: var(--gray-50);
    border-radius: var(--radius-sm);
    padding: 18px 20px;
    margin: 14px 0;
    display: flex;
    align-items: flex-start;
    gap: 14px;
}

.feature-card .card-icon {
    font-size: 1.8rem;
    flex-shrink: 0;
}

.feature-card h4 {
    color: var(--primary);
    font-size: 0.95rem;
    font-weight: 700;
    margin-bottom: 4px;
}

.feature-card p {
    margin: 0;
    font-size: 0.9rem;
    color: var(--gray-600);
}

/* ===== FAQ ===== */
.faq-item {
    background: var(--gray-50);
    border-radius: var(--radius-sm);
    padding: 18px 20px;
    margin-bottom: 14px;
}

.faq-item h4 {
    color: var(--primary);
    font-size: 0.95rem;
    font-weight: 700;
    margin-bottom: 8px;
}

.faq-item p {
    margin: 0;
    color: var(--gray-600);
    font-size: 0.9rem;
}

/* ===== TABLE ===== */
.section-content table {
    width: 100%;
    border-collapse: collapse;
    margin: 16px 0;
    font-size: 0.9rem;
}

.section-content table th {
    background: var(--primary);
    color: var(--white);
    padding: 10px 14px;
    text-align: left;
    font-weight: 600;
}

.section-content table td {
    padding: 10px 14px;
    border-bottom: 1px solid var(--gray-200);
    color: var(--gray-700);
}

.section-content table tbody tr:hover {
    background: var(--gray-50);
}

.section-content table th:first-child {
    border-radius: var(--radius-sm) 0 0 0;
}

.section-content table th:last-child {
    border-radius: 0 var(--radius-sm) 0 0;
}

/* ===== CODE ===== */
.section-content code {
    background: var(--gray-100);
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 0.85rem;
    color: var(--primary-dark);
}

/* ===== FOOTER ===== */
.footer {
    padding: 40px 0 32px;
    background: var(--gray-900);
    color: rgba(255, 255, 255, 0.7);
}

.footer .container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 24px;
}

.footer .logo {
    color: white;
}

.footer-brand {
    display: flex;
    flex-direction: column;
}

.footer .logo-img {
    height: 56px;
    width: auto;
    display: block;
}

.footer-links {
    display: flex;
    gap: 32px;
    flex-wrap: wrap;
}

.footer-links a {
    font-size: 0.9rem;
    transition: color 0.2s;
}

.footer-links a:hover {
    color: white;
}

.footer .footer-email {
    font-size: 0.85rem;
    width: 100%;
    text-align: center;
    margin-top: 4px;
    opacity: 0.6;
    cursor: text;
    user-select: all;
}

.footer small {
    font-size: 0.85rem;
    width: 100%;
    text-align: center;
    margin-top: 16px;
    opacity: 0.6;
}

/* ===== ICONS ===== */
.section-header h2 i {
    margin-right: 8px;
    font-size: 1.1rem;
}

.feature-card .card-icon i {
    color: var(--primary);
    font-size: 1.5rem;
}

.sidebar-nav a .icon {
    font-size: 0.95rem;
    width: 20px;
    text-align: center;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
    .guide-layout {
        padding: 20px;
    }
}

@media (max-width: 900px) {
    .header .btn-back {
        display: none;
    }

    .sidebar-toggle {
        display: inline-flex;
    }

    .sidebar {
        position: fixed;
        top: 65px;
        left: 0;
        transform: translateX(-100%);
        transition: transform 0.3s ease;
        z-index: 200;
    }

    .sidebar.open {
        transform: translateX(0);
    }

    .sidebar-overlay {
        display: none;
        position: fixed;
        top: 65px;
        left: 0;
        width: 100%;
        height: calc(100vh - 65px);
        background: rgba(0, 0, 0, 0.4);
        z-index: 199;
    }

    .sidebar-overlay.active {
        display: block;
    }

    .guide-layout {
        padding: 16px;
    }

    .cover {
        padding: 40px 24px;
    }

    .cover h1 {
        font-size: 1.6rem;
    }

    .section-header {
        padding: 16px 18px;
    }

    .section-header h2 {
        font-size: 1.15rem;
    }

    .section-content {
        padding: 20px;
    }
}

@media (max-width: 480px) {
    .header .container {
        flex-wrap: wrap;
        gap: 10px;
    }

    .cover h1 {
        font-size: 1.4rem;
    }

    .cover .subtitle {
        font-size: 0.95rem;
    }

    .step {
        flex-direction: column;
        gap: 8px;
    }
}