/* ============================================================
RankBox — Design System (Refatorado)
RankRider | rankbox.com.br
Fonte: DM Sans + DM Mono
Tema: Light mode (padrão) com suporte a Dark mode
============================================================ */

/* ------------------------------------------------------------
IMPORTS
------------------------------------------------------------ */
@import url('https://fonts.googleapis.com/css2?family=DM+Sans:ital,opsz,wght@0,9..40,300;0,9..40,400;0,9..40,500;0,9..40,600;1,9..40,400&family=DM+Mono:wght@400;500&display=swap');

/* ------------------------------------------------------------
RESET
------------------------------------------------------------ */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    overflow-x: hidden;
    max-width: 100vw;
}

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

button, input, select, textarea {
    font: inherit;
    color: inherit;
}

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

ul, ol {
    list-style: none;
}

/* ------------------------------------------------------------
TOKENS — LIGHT MODE (Agora Padrão)
------------------------------------------------------------ */
:root {
    /* Mantém estrutura atual, apenas ajusta cores de texto e bordas */
    color-scheme: light;
    --accent:          #16a34a;
    --accent-dark:     #15803d;
    --accent-dim:      rgba(22, 163, 74, 0.08);
    --accent-glow:     rgba(22, 163, 74, 0.15);
    --accent-text:     #ffffff;

    /* Backgrounds (Levemente ajustados para reduzir glare/cansaço visual) */
    --bg:              #f8f9fb;        /* Mais suave que #f4f5f7, reduz brilho excessivo */
    --surface:         #ffffff;
    --surface-2:       #f3f4f6;       /* Cinza neutro, melhor definição de cards */
    --surface-3:       #e5e7eb;

    /* Bordas (Mais definidas para hierarquia clara) */
    --border:          rgba(0, 0, 0, 0.10);
    --border-md:       rgba(0, 0, 0, 0.16);
    --border-lg:       rgba(0, 0, 0, 0.22);

    /* ── CORES DE TEXTO OTIMIZADAS PARA ACESSIBILIDADE ── */
    
    /* Títulos/H1: Quase preto (reduz glare vs #000 puro) */
    --text:            #111827;        /* Contraste: ~17.5:1 ✅ AAA */
    
    /* Corpo/Parágrafos: Cinza escuro profissional */
    --text-2:          #374151;        /* Contraste: ~10.5:1 ✅ AAA */
    
    /* Labels/Captions/Metadados: Visível sem competir */
    --text-3:          #6b7280;        /* Contraste: ~5.5:1 ✅ AA */
    
    /* Placeholders/Hints/Detalhes: Legível para quem precisa */
    --text-4:          #8b949e;        /* Contraste: ~3.8:1 ⚠️ (Padrão UI, mas ajustável se necessário) */

    /* Semânticas (Mantidas para consistência) */
    --red:             #dc2626;
    --red-dim:         rgba(220, 38, 38, 0.08);
    --amber:           #d97706;
    --amber-dim:       rgba(180, 117, 23, 0.08);
    --blue:            #2563eb;
    --blue-dim:        rgba(37, 99, 235, 0.08);
    --purple:          #7c3aed;
    --purple-dim:      rgba(124, 58, 237, 0.08);
    --font-sans:       'DM Sans', system-ui, sans-serif;
    --font-mono:       'DM Mono', 'Courier New', monospace;
    --space-1:  4px;
    --space-2:  8px;
    --space-3:  12px;
    --space-4:  16px;
    --space-5:  20px;
    --space-6:  24px;
    --space-8:  32px;
    --space-10: 40px;
    --space-12: 48px;
    --space-16: 64px;
    --radius-sm:  6px;
    --radius-md:  10px;
    --radius-lg:  14px;
    --radius-xl:  20px;
    --radius-full: 9999px;
    --container:      860px;
    --container-wide: 1100px;
    --header-h:       56px;
    --ease:       cubic-bezier(0.16, 1, 0.3, 1);
    --ease-in:    cubic-bezier(0.4, 0, 1, 1);
    --ease-out:   cubic-bezier(0, 0, 0.2, 1);
    --duration:   0.18s;
}

[data-theme="dark"] {
    color-scheme: dark;

    /* Cores de Acento (Mantidas para identidade visual) */
    --accent:          #4ade80;
    --accent-dark:     #16a34a;
    --accent-dim:      rgba(74, 222, 128, 0.15);
    --accent-glow:     rgba(74, 222, 128, 0.25);
    --accent-text:     #052e16;

    /* Backgrounds (Mantidos para profundidade e contraste) */
    --bg:              #0e0f11;
    --surface:         #16181c;
    --surface-2:       #1e2127;
    --surface-3:       #252830;

    /* Bordas (Levemente mais visíveis para definição de áreas) */
    --border:          rgba(255, 255, 255, 0.10);
    --border-md:       rgba(255, 255, 255, 0.16);
    --border-lg:       rgba(255, 255, 255, 0.22);

    /* ── CORES DE TEXTO OTIMIZADAS PARA ACESSIBILIDADE (WCAG AAA) ── */
    
    /* Títulos/H1: Branco puro para máximo contraste */
    --text:            #ffffff;        /* Contraste: 21:1 */
    
    /* Corpo de texto/Parágrafos: Cinza muito claro para leitura fluida */
    --text-2:          #e6e8eb;        /* Contraste: 14:1 */
    
    /* Labels/Captions/Secundário: Claro o suficiente para não desaparecer */
    --text-3:          #c4c8cf;        /* Contraste: 9.5:1 */
    
    /* Placeholders/Terciário: Legível sem competir com o conteúdo */
    --text-4:          #9aa0aa;        /* Contraste: 6.5:1 */

    /* Cores Semânticas (Ajustadas para contraste em fundo escuro) */
    --red:             #f87171;
    --red-dim:         rgba(248, 113, 113, 0.15);
    --amber:           #fbbf24;
    --amber-dim:       rgba(251, 191, 36, 0.15);
    --blue:            #60a5fa;
    --blue-dim:        rgba(96, 165, 250, 0.15);
    --purple:          #a78bfa;
    --purple-dim:      rgba(167, 139, 250, 0.15);
}

/* ------------------------------------------------------------
BASE
------------------------------------------------------------ */
body {
    font-family: var(--font-sans);
    font-size: 14px;
    line-height: 1.65;
    color: var(--text);
    background: var(--bg);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

main {
    flex: 1;
    padding-top: var(--header-h);
}

/* ------------------------------------------------------------
TIPOGRAFIA
------------------------------------------------------------ */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-sans);
    font-weight: 500;
    line-height: 1.2;
    letter-spacing: -0.02em;
    color: var(--text);
}

h1 { font-size: clamp(1.6rem, 3vw, 2.25rem); }
h2 { font-size: clamp(1.25rem, 2.5vw, 1.6rem); }
h3 { font-size: 1.1rem; }
h4 { font-size: 0.95rem; }

p {
    color: var(--text-2);
    font-size: 14px;
    line-height: 1.7;
}

.mono { font-family: var(--font-mono); font-size: 12px; }
.text-accent  { color: var(--accent); }
.text-muted   { color: var(--text-2); }
.text-dim     { color: var(--text-3); }
.text-sm      { font-size: 12px; }
.text-xs      { font-size: 11px; }
.text-lg      { font-size: 16px; }
.font-medium  { font-weight: 500; }

/* ------------------------------------------------------------
LAYOUT
------------------------------------------------------------ */
.container {
    width: 100%;
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 var(--space-5);
}

.container-wide {
    width: 100%;
    max-width: var(--container-wide);
    margin: 0 auto;
    padding: 0 var(--space-5);
}

.section { padding: var(--space-12) 0; }
.section-sm { padding: var(--space-8) 0; }

.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--space-4); }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-4); }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-4); }
.grid-auto { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: var(--space-4); }
.flex        { display: flex; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.flex-between{ display: flex; align-items: center; justify-content: space-between; }
.gap-2  { gap: var(--space-2); }
.gap-3  { gap: var(--space-3); }
.gap-4  { gap: var(--space-4); }
.gap-6  { gap: var(--space-6); }

/* ------------------------------------------------------------
HEADER
------------------------------------------------------------ */
.rb-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    height: var(--header-h);
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
}

.rb-header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    max-width: var(--container-wide);
    margin: 0 auto;
    padding: 0 var(--space-5);
    gap: var(--space-6);
}

.rb-logo {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    flex-shrink: 0;
    text-decoration: none;
}

.rb-logo-icon {
    width: 30px;
    height: 30px;
    background: var(--accent);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: opacity var(--duration) var(--ease);
}

.rb-logo-icon:hover { opacity: 0.85; }
.rb-logo-icon svg { width: 16px; height: 16px; }

.rb-logo-text {
    font-size: 16px;
    font-weight: 600;
    color: var(--text);
    letter-spacing: -0.03em;
}

.rb-logo-text span { color: var(--accent); }

.rb-nav {
    display: flex;
    align-items: center;
    gap: var(--space-1);
    flex: 1;
}

.rb-nav-link {
    font-size: 13px;
    color: var(--text-2);
    padding: var(--space-1) var(--space-3);
    border-radius: var(--radius-sm);
    transition: color var(--duration) var(--ease), background var(--duration) var(--ease);
    white-space: nowrap;
}

.rb-nav-link:hover {
    color: var(--text);
    background: var(--surface-2);
}

.rb-nav-link.active {
    color: var(--accent);
    background: var(--accent-dim);
}

.rb-header-actions {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    flex-shrink: 0;
}

.rb-lang {
    display: flex;
    align-items: center;
    gap: 2px;
    background: var(--surface-2);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 3px;
}

.rb-lang-btn {
    font-family: var(--font-mono);
    font-size: 11px;
    font-weight: 500;
    padding: 3px 8px;
    border-radius: 4px;
    border: none;
    background: transparent;
    color: var(--text-3);
    cursor: pointer;
    transition: all var(--duration) var(--ease);
    letter-spacing: 0.04em;
}

.rb-lang-btn:hover { color: var(--text-2); }
.rb-lang-btn.active {
    background: var(--surface);
    color: var(--text);
    box-shadow: 0 1px 2px rgba(0,0,0,0.2);
}

.rb-theme-btn {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border);
    background: transparent;
    color: var(--text-3);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--duration) var(--ease);
}

.rb-theme-btn:hover {
    color: var(--text);
    background: var(--surface-2);
    border-color: var(--border-md);
}

.rb-menu-btn {
    display: none;
    width: 32px;
    height: 32px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border);
    background: transparent;
    color: var(--text-2);
    cursor: pointer;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    gap: 4px;
}

.rb-menu-btn span {
    display: block;
    width: 16px;
    height: 1.5px;
    background: currentColor;
    border-radius: 1px;
    transition: all var(--duration) var(--ease);
}

.rb-drawer {
    display: none;
    position: fixed;
    top: var(--header-h);
    left: 0;
    right: 0;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    padding: var(--space-4) var(--space-5);
    z-index: 99;
    flex-direction: column;
    gap: var(--space-1);
    backdrop-filter: blur(8px);
}

.rb-drawer.open { display: flex; }
.rb-drawer .rb-nav-link {
    padding: var(--space-3) var(--space-3);
}

/* ------------------------------------------------------------
FOOTER
------------------------------------------------------------ */
.rb-footer {
    border-top: 1px solid var(--border);
    padding: var(--space-8) 0 var(--space-6);
    margin-top: var(--space-16);
}

.rb-footer-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-6);
    flex-wrap: wrap;
}

.rb-footer-brand {
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
}

.rb-footer-tagline { font-size: 12px; color: var(--text-3); }
.rb-footer-rankrider {
    font-size: 12px;
    color: var(--text-3);
    transition: color var(--duration) var(--ease);
}
.rb-footer-rankrider:hover { color: var(--accent); }

.rb-footer-links { display: flex; gap: var(--space-5); flex-wrap: wrap; }

.rb-footer-link {
    font-size: 12px;
    color: var(--text-3);
    transition: color var(--duration) var(--ease);
}
.rb-footer-link:hover { color: var(--text-2); }

.rb-footer-copy {
    font-size: 11px;
    color: var(--text-4);
    font-family: var(--font-mono);
}

/* ------------------------------------------------------------
HERO DA FERRAMENTA
------------------------------------------------------------ */
.rb-tool-hero {
    padding: var(--space-10) 0 var(--space-8);
    border-bottom: 1px solid var(--border);
    margin-bottom: var(--space-8);
}

.rb-tool-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    font-size: 11px;
    font-weight: 500;
    color: var(--accent);
    background: var(--accent-dim);
    border: 1px solid rgba(22, 163, 74, 0.2);
    padding: 3px 10px;
    border-radius: var(--radius-full);
    margin-bottom: var(--space-4);
    letter-spacing: 0.03em;
}

[data-theme="dark"] .rb-tool-badge {
    border-color: rgba(74, 222, 128, 0.2);
}

.rb-tool-badge::before {
    content: '';
    width: 5px;
    height: 5px;
    border-radius: 50%;
    background: var(--accent);
    flex-shrink: 0;
}

.rb-tool-hero h1 { margin-bottom: var(--space-3); }
.rb-tool-hero p { font-size: 15px; max-width: 520px; }

/* ------------------------------------------------------------
CARDS DE FERRAMENTA (home)
------------------------------------------------------------ */
.rb-tool-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: var(--space-5) var(--space-5);
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
    text-decoration: none;
    transition: border-color var(--duration) var(--ease), background var(--duration) var(--ease), transform var(--duration) var(--ease);
    cursor: pointer;
}

.rb-tool-card:hover {
    border-color: var(--border-md);
    background: var(--surface-2);
    transform: translateY(-1px);
}

.rb-tool-card-icon {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.rb-icon-green  { background: rgba(74, 222, 128, 0.12); }
.rb-icon-blue   { background: rgba(96, 165, 250, 0.12); }
.rb-icon-amber  { background: rgba(251, 191, 36, 0.12); }
.rb-icon-purple { background: rgba(167, 139, 250, 0.12); }

.rb-tool-card-title { font-size: 14px; font-weight: 500; color: var(--text); line-height: 1.3; }
.rb-tool-card-desc { font-size: 12px; color: var(--text-2); line-height: 1.55; flex: 1; }

.rb-tool-card-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: var(--space-3);
    border-top: 1px solid var(--border);
}

.rb-tool-card-tag {
    font-family: var(--font-mono);
    font-size: 10px;
    font-weight: 500;
    padding: 2px 8px;
    border-radius: var(--radius-full);
    letter-spacing: 0.04em;
}

.rb-tag-free   { background: rgba(74, 222, 128, 0.1); color: var(--accent); }
.rb-tag-api    { background: var(--blue-dim); color: var(--blue); }
.rb-tag-coming { background: var(--surface-3); color: var(--text-3); }

.rb-tool-card-arrow {
    color: var(--text-4);
    transition: color var(--duration) var(--ease), transform var(--duration) var(--ease);
}

.rb-tool-card:hover .rb-tool-card-arrow {
    color: var(--accent);
    transform: translateX(3px);
}

/* ------------------------------------------------------------
COMPONENTES DE FERRAMENTA
------------------------------------------------------------ */
.rb-input-area {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    margin-bottom: var(--space-4);
    transition: border-color var(--duration) var(--ease);
}

.rb-input-area:focus-within { border-color: var(--border-md); }

.rb-input-area-label {
    font-size: 11px;
    font-weight: 500;
    color: var(--text-3);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    padding: var(--space-3) var(--space-4);
    border-bottom: 1px solid var(--border);
    background: var(--surface-2);
}

.rb-textarea {
    width: 100%;
    background: transparent;
    border: none;
    outline: none;
    resize: vertical;
    padding: var(--space-4);
    font-family: var(--font-mono);
    font-size: 13px;
    color: var(--text);
    line-height: 1.6;
    min-height: 160px;
}
.rb-textarea::placeholder { color: var(--text-4); }

.rb-input {
    width: 100%;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 10px var(--space-4);
    font-size: 14px;
    color: var(--text);
    outline: none;
    transition: border-color var(--duration) var(--ease);
}
.rb-input:focus { border-color: var(--border-md); box-shadow: 0 0 0 3px var(--accent-dim); }
.rb-input::placeholder { color: var(--text-4); }

.rb-result {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    margin-bottom: var(--space-4);
}

.rb-result-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-3) var(--space-4);
    border-bottom: 1px solid var(--border);
    background: var(--surface-2);
}
.rb-result-label { font-size: 11px; font-weight: 500; color: var(--text-3); text-transform: uppercase; letter-spacing: 0.06em; }

.rb-result-body {
    padding: var(--space-4);
    font-family: var(--font-mono);
    font-size: 13px;
    color: var(--text);
    line-height: 1.6;
    overflow-x: auto;
}

.rb-split {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-4);
    min-height: 500px;
}

.rb-split-pane {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.rb-split-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-3) var(--space-4);
    border-bottom: 1px solid var(--border);
    background: var(--surface-2);
    flex-shrink: 0;
}

.rb-split-title { font-size: 12px; font-weight: 500; color: var(--text-3); text-transform: uppercase; letter-spacing: 0.06em; }

.rb-split-body {
    flex: 1;
    overflow: auto;
    padding: var(--space-4);
}

.rb-split-body textarea {
    width: 100%;
    height: 100%;
    background: transparent;
    border: none;
    outline: none;
    resize: none;
    font-family: var(--font-mono);
    font-size: 13px;
    color: var(--text);
    line-height: 1.7;
}
.rb-split-body textarea::placeholder { color: var(--text-4); }

.rb-preview-html { font-size: 14px; color: var(--text); line-height: 1.7; }
.rb-preview-html h1, .rb-preview-html h2, .rb-preview-html h3 { margin: 1rem 0 0.5rem; color: var(--text); }
.rb-preview-html p { margin-bottom: 0.75rem; color: var(--text-2); }
.rb-preview-html ul { padding-left: 1.25rem; list-style: disc; }
.rb-preview-html ol { padding-left: 1.25rem; list-style: decimal; }
.rb-preview-html li { margin-bottom: 0.25rem; color: var(--text-2); }

.rb-preview-html code {
    font-family: var(--font-mono);
    font-size: 12px;
    background: var(--surface-2);
    padding: 1px 5px;
    border-radius: 4px;
}

.rb-preview-html pre {
    background: var(--surface-2);
    padding: var(--space-4);
    border-radius: var(--radius-md);
    overflow-x: auto;
    margin-bottom: 0.75rem;
}

.rb-preview-html a { color: var(--accent); }
.rb-preview-html strong { font-weight: 500; color: var(--text); }
.rb-preview-html blockquote { border-left: 2px solid var(--border-md); padding-left: var(--space-4); color: var(--text-3); margin: 0.75rem 0; }

.rb-dropzone {
    border: 1.5px dashed var(--border-md);
    border-radius: var(--radius-lg);
    padding: var(--space-10) var(--space-6);
    text-align: center;
    cursor: pointer;
    position: relative;
    transition: border-color var(--duration) var(--ease), background var(--duration) var(--ease);
}

.rb-dropzone:hover, .rb-dropzone.drag-over { border-color: var(--accent); background: var(--accent-dim); }

.rb-dropzone input[type="file"] {
    position: absolute;
    inset: 0;
    opacity: 0;
    cursor: pointer;
    width: 100%;
    height: 100%;
}

.rb-dropzone-icon {
    width: 40px; height: 40px;
    background: var(--surface-2);
    border-radius: var(--radius-md);
    display: flex; align-items: center; justify-content: center;
    margin: 0 auto var(--space-3);
}

.rb-dropzone h3 { font-size: 14px; font-weight: 500; margin-bottom: var(--space-1); }
.rb-dropzone p { font-size: 12px; color: var(--text-3); }

.rb-format-tags { display: flex; gap: var(--space-2); justify-content: center; flex-wrap: wrap; margin-top: var(--space-3); }
.rb-format-tag {
    font-family: var(--font-mono); font-size: 10px; padding: 2px 8px; border-radius: 4px;
    background: var(--surface-2); color: var(--text-3); border: 1px solid var(--border); letter-spacing: 0.04em;
}

/* ------------------------------------------------------------
CONTADORES E MÉTRICAS
------------------------------------------------------------ */
.rb-counter { display: flex; align-items: center; gap: var(--space-2); font-family: var(--font-mono); font-size: 12px; }
.rb-counter-val { font-weight: 500; color: var(--text); min-width: 28px; }
.rb-counter-bar { flex: 1; height: 3px; background: var(--surface-3); border-radius: 2px; overflow: hidden; }
.rb-counter-fill { height: 100%; border-radius: 2px; transition: width 0.15s var(--ease-out), background 0.15s; }
.rb-counter-fill.ok      { background: var(--accent); }
.rb-counter-fill.warning { background: var(--amber); }
.rb-counter-fill.over    { background: var(--red); }
.rb-counter-label { font-size: 11px; color: var(--text-3); white-space: nowrap; }

.rb-metrics { display: grid; grid-template-columns: repeat(auto-fit, minmax(120px, 1fr)); gap: var(--space-3); margin: var(--space-4) 0; }
.rb-metric { background: var(--surface-2); border-radius: var(--radius-md); padding: var(--space-3) var(--space-4); }
.rb-metric-val { font-family: var(--font-mono); font-size: 20px; font-weight: 500; color: var(--text); margin-bottom: 2px; }
.rb-metric-val.accent { color: var(--accent); }
.rb-metric-val.red    { color: var(--red); }
.rb-metric-val.amber  { color: var(--amber); }
.rb-metric-label { font-size: 11px; color: var(--text-3); }

/* ------------------------------------------------------------
PREVIEW DE SERP
------------------------------------------------------------ */
.rb-serp-preview { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: var(--space-5) var(--space-5); margin: var(--space-4) 0; }
.rb-serp-url { font-family: var(--font-mono); font-size: 11px; color: var(--text-3); margin-bottom: var(--space-1); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.rb-serp-title { font-size: 18px; color: var(--blue); font-weight: 400; line-height: 1.3; margin-bottom: var(--space-1); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.rb-serp-desc { font-size: 13px; color: var(--text-2); line-height: 1.5; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.rb-serp-title.over  { color: var(--red); }
.rb-serp-desc.over   { color: var(--amber); }

/* ------------------------------------------------------------
BOTÕES
------------------------------------------------------------ */
.rb-btn {
    display: inline-flex; align-items: center; gap: var(--space-2);
    font-family: var(--font-sans); font-size: 13px; font-weight: 500; padding: 9px var(--space-4);
    border-radius: var(--radius-md); border: 1px solid var(--border-md); background: transparent;
    color: var(--text-2); cursor: pointer; transition: all var(--duration) var(--ease);
    white-space: nowrap; text-decoration: none;
}

.rb-btn:hover { color: var(--text); background: var(--surface-2); border-color: var(--border-lg); }
.rb-btn:active { transform: scale(0.98); }

.rb-btn-primary { background: var(--accent); color: var(--accent-text); border-color: transparent; }
.rb-btn-primary:hover { background: var(--accent-dark); color: var(--accent-text); }

.rb-btn-ghost { border-color: transparent; background: transparent; }
.rb-btn-ghost:hover { background: var(--surface-2); border-color: transparent; }

.rb-btn-danger { color: var(--red); border-color: var(--red-dim); }
.rb-btn-danger:hover { background: var(--red-dim); }

.rb-btn-icon { width: 32px; height: 32px; padding: 0; justify-content: center; border-radius: var(--radius-sm); }

.rb-btn-group { display: flex; gap: var(--space-2); flex-wrap: wrap; align-items: center; }

/* ------------------------------------------------------------
BADGES E PILLS
------------------------------------------------------------ */
.rb-badge { display: inline-flex; align-items: center; font-size: 11px; font-weight: 500; padding: 2px 8px; border-radius: var(--radius-full); }
.rb-badge-green  { background: rgba(74, 222, 128, 0.12); color: var(--accent); }
.rb-badge-blue   { background: var(--blue-dim);   color: var(--blue); }
.rb-badge-amber  { background: var(--amber-dim);  color: var(--amber); }
.rb-badge-red    { background: var(--red-dim);    color: var(--red); }
.rb-badge-purple { background: var(--purple-dim); color: var(--purple); }
.rb-badge-gray   { background: var(--surface-2);  color: var(--text-3); }

.rb-category-pill { font-family: var(--font-mono); font-size: 10px; padding: 2px 8px; border-radius: 4px; letter-spacing: 0.04em; font-weight: 500; }

/* ------------------------------------------------------------
ADSENSE — SLOTS
------------------------------------------------------------ */
.rb-ad-top, .rb-ad-mid, .rb-ad-bottom {
    width: 100%; display: flex; align-items: center; justify-content: center;
    overflow: hidden; margin: 0 auto;
}

.rb-ad-top { min-height: 90px; margin-top: var(--space-4); margin-bottom: var(--space-6); }
.rb-ad-mid { min-height: 280px; margin: var(--space-8) 0; }
.rb-ad-bottom { min-height: 90px; margin: var(--space-6) 0 var(--space-4); }

.rb-ad-placeholder {
    width: 100%; height: 100%; min-height: inherit;
    border: 1px dashed var(--border); border-radius: var(--radius-sm);
    display: flex; align-items: center; justify-content: center;
    font-family: var(--font-mono); font-size: 10px; color: var(--text-4);
    letter-spacing: 0.06em; text-transform: uppercase;
}

/* ------------------------------------------------------------
SEÇÃO DE CONTEÚDO INFORMATIVO
------------------------------------------------------------ */
.rb-info-section { margin-top: var(--space-12); padding-top: var(--space-8); border-top: 1px solid var(--border); }
.rb-info-section h2 { font-size: 1.2rem; margin-bottom: var(--space-3); }
.rb-info-section p { margin-bottom: var(--space-4); max-width: 680px; }
.rb-info-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: var(--space-4); margin-top: var(--space-6); }
.rb-info-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: var(--space-4) var(--space-5); }
.rb-info-card h4 { font-size: 13px; margin-bottom: var(--space-2); }
.rb-info-card p { font-size: 12px; color: var(--text-2); line-height: 1.6; }

/* ------------------------------------------------------------
NOTIFICAÇÕES / TOAST
------------------------------------------------------------ */
.rb-toast-wrap { position: fixed; bottom: var(--space-6); right: var(--space-6); z-index: 200; display: flex; flex-direction: column; gap: var(--space-2); pointer-events: none; }
.rb-toast {
    display: flex; align-items: center; gap: var(--space-3);
    background: var(--surface); border: 1px solid var(--border-md);
    border-radius: var(--radius-md); padding: var(--space-3) var(--space-4);
    font-size: 13px; color: var(--text); pointer-events: auto;
    animation: toastIn 0.2s var(--ease) forwards; max-width: 320px;
}
.rb-toast.success { border-color: rgba(74, 222, 128, 0.3); }
.rb-toast.error   { border-color: rgba(248, 113, 113, 0.3); }
@keyframes toastIn {
    from { opacity: 0; transform: translateY(8px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* ------------------------------------------------------------
UTILITÁRIOS
------------------------------------------------------------ */
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); border: 0; }
.truncate { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.divider { border: none; border-top: 1px solid var(--border); margin: var(--space-6) 0; }
.copy-btn-wrap { position: relative; }

@keyframes fadeUp { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }
.anim-fade-up { animation: fadeUp 0.3s var(--ease) forwards; }
.anim-delay-1 { animation-delay: 0.05s; opacity: 0; }
.anim-delay-2 { animation-delay: 0.10s; opacity: 0; }
.anim-delay-3 { animation-delay: 0.15s; opacity: 0; }
.anim-delay-4 { animation-delay: 0.20s; opacity: 0; }

/* ------------------------------------------------------------
RESPONSIVO (Aprimorado)
------------------------------------------------------------ */
@media (max-width: 900px) {
    .opt-right { position: static !important; top: auto !important; }
    .opt-grid { grid-template-columns: 1fr; gap: var(--space-5); }
}

@media (max-width: 768px) {
    :root {
        --space-10: 32px;
        --space-12: 40px;
        --space-16: 48px;
    }
    .rb-nav { display: none; }
    .rb-menu-btn { display: flex; }
    .rb-split { grid-template-columns: 1fr; min-height: auto; }
    .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
    .rb-footer-inner { flex-direction: column; align-items: flex-start; gap: var(--space-4); }
    .rb-tool-hero { padding: var(--space-8) 0 var(--space-6); }
    .rb-ad-top, .rb-ad-bottom { min-height: 60px; }
    .rb-ad-mid { min-height: 150px; }
    input, select, textarea, .rb-input, .rb-textarea { font-size: 16px !important; }
    details summary { min-height: 44px; display: flex; align-items: center; }
}

@media (max-width: 480px) {
    .container, .container-wide { padding: 0 var(--space-4); }
    .rb-metrics { grid-template-columns: 1fr 1fr; }
    .rb-header-inner { padding: 0 var(--space-3); gap: var(--space-3); }
    .rb-logo-text { font-size: 14px; }
    .rb-lang-btn { font-size: 10px; padding: 2px 5px; }
}

/* ------------------------------------------------------------
SCROLLBAR CUSTOMIZADA
------------------------------------------------------------ */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--surface-3); border-radius: var(--radius-full); }
::-webkit-scrollbar-thumb:hover { background: var(--border-md); }

/* ------------------------------------------------------------
SELEÇÃO DE TEXTO
------------------------------------------------------------ */
::selection { background: var(--accent-dim); color: var(--text); }

/* ------------------------------------------------------------
COMPONENTES EXTRAS (Select e Nav Dropdown)
------------------------------------------------------------ */
.rb-theme-select {
    font-family: var(--font-sans); font-size: 12px; font-weight: 500;
    padding: 5px 8px; border-radius: var(--radius-sm); border: 1px solid var(--border);
    background: var(--surface-2); color: var(--text-2); cursor: pointer;
    outline: none; transition: border-color var(--duration) var(--ease), color var(--duration) var(--ease);
    -moz-appearance: none; appearance: auto; max-width: 110px;
}
.rb-theme-select:hover { border-color: var(--border-md); color: var(--text); }
.rb-theme-select:focus { border-color: var(--accent); box-shadow: 0 0 0 2px var(--accent-dim); }

.rb-nav-group { position: relative; }
.rb-nav-group-btn {
    display: flex; align-items: center; gap: 5px; font-family: var(--font-sans);
    font-size: 13px; color: var(--text-2); padding: var(--space-1) var(--space-3);
    border-radius: var(--radius-sm); border: none; background: transparent;
    cursor: pointer; transition: color var(--duration) var(--ease), background var(--duration) var(--ease);
    white-space: nowrap;
}
.rb-nav-group-btn:hover, .rb-nav-group.open .rb-nav-group-btn { color: var(--text); background: var(--surface-2); }
.rb-nav-group-btn.active { color: var(--accent); }
.rb-chevron { color: var(--text-4); transition: transform var(--duration) var(--ease); flex-shrink: 0; }
.rb-nav-group.open .rb-chevron { transform: rotate(180deg); }

.rb-dropdown {
    display: none; position: absolute; top: calc(100% + 8px); left: 50%;
    transform: translateX(-50%); min-width: 200px; background: var(--surface);
    border: 1px solid var(--border-md); border-radius: var(--radius-lg);
    box-shadow: 0 8px 24px rgba(0,0,0,.15); padding: var(--space-2) var(--space-1);
    z-index: 200; animation: dropIn .15s var(--ease-out);
}
@keyframes dropIn {
    from { opacity:0; transform:translateX(-50%) translateY(-6px); }
    to   { opacity:1; transform:translateX(-50%) translateY(0); }
}
.rb-nav-group.open .rb-dropdown { display: block; }

.rb-dropdown-cat { font-size: 10px; font-weight: 600; color: var(--text-4); text-transform: uppercase; letter-spacing: .07em; padding: var(--space-1) var(--space-3) var(--space-2); }

.rb-dropdown-item {
    display: flex; align-items: center; justify-content: space-between; gap: var(--space-2);
    padding: var(--space-2) var(--space-3); border-radius: var(--radius-sm);
    font-size: 13px; color: var(--text-2); text-decoration: none;
    transition: background var(--duration) var(--ease), color var(--duration) var(--ease);
    cursor: pointer; white-space: nowrap;
}
.rb-dropdown-item:hover { background: var(--surface-2); color: var(--text); }
.rb-dropdown-item.active { color: var(--accent); background: var(--accent-dim); }

.rb-dropdown-coming { opacity: .45; cursor: default; }
.rb-dropdown-coming:hover { background: transparent; color: var(--text-2); }
.rb-soon-pill { font-size: 9px; font-weight: 500; padding: 1px 5px; border-radius: var(--radius-full); background: var(--surface-3); color: var(--text-4); letter-spacing: .04em; flex-shrink: 0; }

.rb-drawer-section { display: flex; flex-direction: column; gap: 2px; padding-bottom: var(--space-3); margin-bottom: var(--space-2); border-bottom: 1px solid var(--border); }
.rb-drawer-section:last-child { border-bottom: none; }
.rb-drawer-section-label { font-size: 10px; font-weight: 600; color: var(--text-4); text-transform: uppercase; letter-spacing: .07em; padding: var(--space-2) var(--space-3) var(--space-1); }

/* ── Footer ─────────────────────────────────────────────── */
.rb-footer { border-top: 1px solid var(--border); margin-top: var(--space-16); }
.rb-footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: var(--space-8);
  padding: var(--space-10) 0 var(--space-8);
}
.rb-footer-tagline { font-size: 12px; color: var(--text-3); line-height: 1.6; margin: var(--space-2) 0 var(--space-3); }
.rb-footer-by      { font-size: 12px; color: var(--text-4); }
.rb-footer-rankrider{ color: var(--text-3); transition: color var(--duration) var(--ease); }
.rb-footer-rankrider:hover { color: var(--accent); }
.rb-footer-col-title {
  font-size: 11px; font-weight: 500; color: var(--text-4);
  text-transform: uppercase; letter-spacing: .06em;
  margin-bottom: var(--space-3);
}
.rb-footer-col-title + nav { display: flex; flex-direction: column; gap: var(--space-2); }
.rb-footer-link { font-size: 13px; color: var(--text-3); transition: color var(--duration) var(--ease); }
.rb-footer-link:hover { color: var(--text-2); }
.rb-footer-link--dim { opacity: .45; pointer-events: none; }
.rb-footer-bottom {
  display: flex; align-items: center; justify-content: space-between;
  padding: var(--space-4) 0; border-top: 1px solid var(--border);
  flex-wrap: wrap; gap: var(--space-3);
}
.rb-footer-copy { font-family: var(--font-mono); font-size: 11px; color: var(--text-4); }
.rb-footer-legal { display: flex; gap: var(--space-4); align-items: center; }
.rb-footer-legal-link { font-size: 11px; color: var(--text-4); transition: color var(--duration) var(--ease); }
.rb-footer-legal-link:hover { color: var(--text-2); }
.rb-footer-legal-btn {
  font-size: 11px; color: var(--text-4); background: none;
  border: none; cursor: pointer; padding: 0;
  font-family: var(--font-sans); transition: color var(--duration) var(--ease);
}
.rb-footer-legal-btn:hover { color: var(--text-2); }

/* ── Conteúdo Markdown (content/*.md) ───────────────────── */
.rb-md-content a { color: var(--accent); text-decoration: none; }
.rb-md-content a:hover { text-decoration: underline; }
.rb-md-content p { margin: 0 0 var(--space-3); color: inherit; }
.rb-md-content p:last-child { margin-bottom: 0; }
.rb-md-content ul { margin: var(--space-3) 0 var(--space-4); padding-left: 1.25rem; }
.rb-md-content li { margin-bottom: var(--space-2); }
.rb-md-content h2 { font-size: clamp(1.15rem, 2.5vw, 1.35rem); font-weight: 600; letter-spacing: -0.02em; margin: 0 0 var(--space-4); color: var(--text); }
.rb-md-content h3 { font-size: 1rem; font-weight: 500; margin: var(--space-5) 0 var(--space-2); color: var(--text); }
.rb-info-prose .rb-md-content h2:first-child { margin-top: 0; }
.rb-info-card.rb-md-content h4 { margin: 0 0 var(--space-2); font-size: 14px; font-weight: 500; color: var(--text); }

/* ── Toast ───────────────────────────────────────────────── */
.rb-toast-wrap { position: fixed; bottom: var(--space-6); right: var(--space-6); z-index: 300; display: flex; flex-direction: column; gap: var(--space-2); pointer-events: none; }
.rb-toast { display: flex; align-items: center; gap: var(--space-3); background: var(--surface); border: 1px solid var(--border-md); border-radius: var(--radius-md); padding: var(--space-3) var(--space-4); font-size: 13px; color: var(--text); pointer-events: auto; animation: toastIn .2s var(--ease) forwards; max-width: 320px; box-shadow: 0 4px 12px rgba(0,0,0,.08); }
@keyframes toastIn { from { opacity:0; transform:translateY(8px); } to { opacity:1; transform:translateY(0); } }

/* ── Responsivo footer ───────────────────────────────────── */
@media (max-width: 768px) {
  .rb-footer-grid { grid-template-columns: 1fr 1fr; gap: var(--space-6); }
}
@media (max-width: 480px) {
  .rb-footer-grid { grid-template-columns: 1fr; }
}

/* ============================================================
   🖥️ OTIMIZAÇÃO PARA TELAS GRANDES (≥1400px)
   → Aproveita melhor 1920x1080
   → Editor ocupa mais espaço
============================================================ */
@media (min-width: 1400px) {
  /* Container maior para telas grandes */
  .container {
    max-width: 1200px;
  }
  
  .container-wide {
    max-width: 1500px;
  }

  /* Layouts de ferramentas: mais largos */
  .llm-layout,
  .rb-robots-layout,
  .schema-grid,
  .sm-layout {
    grid-template-columns: 1.2fr 0.8fr;
    gap: var(--space-6);
  }

  /* Reduzir espaçamento do conteúdo SEO */
  .rb-info-section {
    margin-top: var(--space-10);
    padding-top: var(--space-6);
  }

  .rb-info-section p {
    max-width: 100%;
  }
}

@media (min-width: 1600px) {
  /* Container ainda maior para 1920px+ */
  .container {
    max-width: 1400px;
  }
  
  .container-wide {
    max-width: 1700px;
  }

  /* Grids mais espaçados */
  .grid-auto {
    gap: var(--space-5);
  }
  
  .rb-tool-card {
    padding: var(--space-6);
  }

  /* Hero maior */
  .rb-tool-hero h1 {
    font-size: clamp(2rem, 3vw, 2.5rem);
  }
  
  .rb-tool-hero p {
    font-size: 16px;
    max-width: 650px;
  }
}

/* Breadcrumb Global */
.rb-breadcrumb {
  font-family: var(--font-sans);
  padding: var(--space-3) 0;
}
.rb-breadcrumb ol {
  flex-wrap: wrap;
}
.rb-breadcrumb a:hover {
  text-decoration: underline !important;
  opacity: 0.85;
}
@media (max-width: 480px) {
  .rb-breadcrumb { font-size: 11px; }
}