/* ================================================================
   criscuolo.online — Conversor de Cores
   Segue: manual_de_marca.md
   ================================================================ */

:root {
    --brand-gold: #D4A843;
    --brand-gold-light: #E0BE6A;
    --brand-gold-dark: #B8922F;
    --brand-gradient: linear-gradient(135deg, #D4A843, #E0BE6A, #D4A843);
    --cta-gradient: linear-gradient(135deg, #D4A843, #B8922F);

    --bg-primary: #16161E;
    --bg-secondary: #1C1C26;
    --bg-card: rgba(24, 24, 32, 0.88);
    --bg-card-border: rgba(212, 168, 67, 0.12);
    --bg-card-border-hover: rgba(212, 168, 67, 0.3);
    --bg-input: #141420;
    --bg-hover: rgba(212, 168, 67, 0.08);

    --text-primary: #F2F0EB;
    --text-secondary: #9B978E;
    --text-muted: #6B6760;
    --text-accent: #D4A843;

    --color-success: #22C55E;
    --color-error: #EF4444;

    --border-radius: 16px;
    --border-radius-sm: 10px;
    --border-radius-xs: 8px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --shadow-glow: 0 0 40px rgba(212, 168, 67, 0.1);
    --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.4);
    --shadow-button: 0 4px 15px rgba(212, 168, 67, 0.25);
    --shadow-button-hover: 0 6px 25px rgba(212, 168, 67, 0.35);

    --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-mono: 'SF Mono', 'Fira Code', 'Cascadia Code', 'Consolas', monospace;
}

/* --- Reset & Base --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; -webkit-font-smoothing: antialiased; }
body {
    font-family: var(--font);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    overflow-x: hidden;
    line-height: 1.6;
}
a { text-decoration: none; }

/* --- Fundo --- */
.bg-effects { position: fixed; inset: 0; pointer-events: none; z-index: 0; overflow: hidden; }
.orb { position: absolute; border-radius: 50%; filter: blur(100px); opacity: 0.5; animation: float 25s ease-in-out infinite; }
.orb-1 { width:600px;height:600px;background:radial-gradient(circle,rgba(212,168,67,.2),transparent 70%);top:-200px;right:-150px;animation-duration:22s; }
.orb-2 { width:500px;height:500px;background:radial-gradient(circle,rgba(184,146,47,.15),transparent 70%);bottom:200px;left:-150px;animation-duration:28s;animation-delay:-8s; }
.orb-3 { width:400px;height:400px;background:radial-gradient(circle,rgba(16,185,129,.08),transparent 70%);top:60%;right:10%;animation-duration:35s;animation-delay:-15s; }
.orb-4 { width:350px;height:350px;background:radial-gradient(circle,rgba(212,168,67,.1),transparent 70%);bottom:0;right:30%;animation-duration:30s;animation-delay:-20s; }
@keyframes float {
    0%,100% { transform: translate(0,0) scale(1); }
    25%  { transform: translate(30px,-40px) scale(1.05); }
    50%  { transform: translate(-20px,20px) scale(.95); }
    75%  { transform: translate(40px,10px) scale(1.02); }
}
.grid-overlay {
    position: fixed; inset: 0; pointer-events: none; z-index: 0;
    background-image:
        linear-gradient(rgba(212,168,67,.02) 1px, transparent 1px),
        linear-gradient(90deg,rgba(212,168,67,.02) 1px,transparent 1px);
    background-size: 60px 60px;
}

/* --- Mouse Glow --- */
.mouse-glow {
    position: fixed; width: 700px; height: 700px; border-radius: 50%;
    background: radial-gradient(circle, rgba(212,168,67,0.07) 0%, rgba(212,168,67,0.025) 40%, transparent 70%);
    pointer-events: none; z-index: 1; top: 0; left: 0;
    transform: translate(-50%, -50%); will-change: left, top;
    opacity: 0; transition: opacity 0.4s ease;
}
.mouse-glow.visible { opacity: 1; }

/* --- Header --- */
.header {
    position: fixed; top: 0; left: 0; right: 0; z-index: 100;
    padding: 0 24px;
    background: rgba(22,22,30,.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(212,168,67,.08);
    transition: var(--transition);
}
.header.scrolled { background: rgba(22,22,30,.95); border-bottom-color: rgba(212,168,67,.15); }
.header-inner {
    max-width: 1100px; margin: 0 auto; height: 72px;
    display: flex; align-items: center; justify-content: space-between; gap: 24px;
}
.logo { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
.logo-img-wrapper {
    width: 44px; height: 44px;
    background: radial-gradient(circle,rgba(255,255,255,.95) 60%,rgba(255,255,255,.6) 80%,transparent 100%);
    border-radius: 50%; padding: 5px;
    box-shadow: 0 0 16px rgba(212,168,67,.15);
    display: flex; align-items: center; justify-content: center; flex-shrink: 0;
    transition: var(--transition);
}
.logo-img-wrapper:hover { box-shadow: 0 0 24px rgba(212,168,67,.25); }
.logo-img { width: 100%; height: 100%; object-fit: contain; border-radius: 50%; }
.logo-text-group { display: flex; align-items: baseline; }
.logo-text { font-size: 1.25rem; font-weight: 800; color: var(--text-primary); letter-spacing: -0.02em; }
.logo-text-accent { font-size: 1.25rem; font-weight: 800; color: var(--brand-gold); letter-spacing: -0.02em; }

.nav { display: flex; align-items: center; gap: 8px; }
.nav-link { font-size: .9rem; font-weight: 600; color: var(--text-secondary); padding: 8px 14px; border-radius: var(--border-radius-xs); transition: var(--transition); }
.nav-link:hover { color: var(--text-primary); background: var(--bg-hover); }
.nav-link-active { color: var(--brand-gold) !important; background: rgba(212,168,67,.08); }
.nav-cta { font-size: .9rem; font-weight: 700; color: #0C0C0E; background: var(--cta-gradient); padding: 9px 18px; border-radius: var(--border-radius-sm); box-shadow: var(--shadow-button); transition: var(--transition); margin-left: 8px; }
.nav-cta:hover { transform: translateY(-1px); box-shadow: var(--shadow-button-hover); }
.nav-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 4px; }
.nav-toggle span { display: block; width: 24px; height: 2px; background: var(--text-primary); border-radius: 2px; transition: var(--transition); }

/* --- Utilitários --- */
.gradient-text {
    background: var(--brand-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.section-label { display: inline-block; font-size: .78rem; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; color: var(--brand-gold); margin-bottom: 12px; }

/* --- Animações --- */
@keyframes fadeDown { from{opacity:0;transform:translateY(-15px)} to{opacity:1;transform:translateY(0)} }
@keyframes fadeUp   { from{opacity:0;transform:translateY(20px)}  to{opacity:1;transform:translateY(0)} }
@keyframes shake { 0%,100%{transform:translateX(0)} 20%{transform:translateX(-4px)} 40%{transform:translateX(4px)} 60%{transform:translateX(-3px)} 80%{transform:translateX(3px)} }

/* --- Breadcrumb --- */
.breadcrumb {
    display: inline-flex; align-items: center; gap: 4px;
    font-size: .82rem; font-weight: 600; color: var(--text-muted);
    padding: 4px 0; margin-bottom: 12px;
    transition: var(--transition);
}
.breadcrumb:hover { color: var(--brand-gold); }

/* --- Page Main / Hero --- */
.page-main { padding-top: 72px; min-height: 100vh; position: relative; z-index: 1; }
.page-hero { padding: 64px 24px 40px; border-bottom: 1px solid var(--bg-card-border); animation: fadeDown .6s ease both; }
.page-hero-inner { max-width: 820px; margin: 0 auto; }
.page-title { font-size: clamp(2rem, 5vw, 3.2rem); font-weight: 900; letter-spacing: -0.03em; line-height: 1.1; margin-bottom: 16px; }
.page-subtitle { font-size: 1.05rem; color: var(--text-secondary); max-width: 560px; line-height: 1.7; }
.page-content { padding: 48px 24px 64px; position: relative; z-index: 1; }

/* ================================================================
   FERRAMENTA — CONVERSOR DE CORES
   ================================================================ */

.tool-container {
    max-width: 860px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 32px;
}

/* --- Preview Card --- */
.color-preview-card {
    background: var(--bg-card);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--bg-card-border);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-card);
    overflow: hidden;
    display: flex;
    align-items: stretch;
    gap: 0;
    min-height: 160px;
    transition: var(--transition);
}
.swatch-area {
    flex: 0 0 240px;
    position: relative;
    cursor: pointer;
    overflow: hidden;
}
.color-swatch {
    position: absolute;
    inset: 0;
    background: #D4A843;
    transition: background-color 0.2s ease;
}
.swatch-overlay {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0,0,0,0);
    transition: background .2s ease;
}
.swatch-area:hover .swatch-overlay { background: rgba(0,0,0,.25); }
.picker-label {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    color: rgba(255,255,255,0);
    font-size: .8rem;
    font-weight: 700;
    cursor: pointer;
    text-shadow: 0 1px 4px rgba(0,0,0,.5);
    transition: color .2s ease;
    user-select: none;
}
.swatch-area:hover .picker-label { color: rgba(255,255,255,.95); }
#colorPicker {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    cursor: pointer;
    border: none;
    padding: 0;
}
.swatch-info {
    flex: 1;
    padding: 32px 32px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 16px;
}
.swatch-name {
    font-size: 2rem;
    font-weight: 900;
    letter-spacing: -0.03em;
    color: var(--text-primary);
    font-family: var(--font-mono);
    transition: var(--transition);
}
.swatch-contrast {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}
.contrast-tag {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: .78rem;
    font-weight: 700;
    padding: 5px 12px;
    border-radius: 20px;
    opacity: 0.4;
    transition: opacity .3s ease;
}
.contrast-tag.good { opacity: 1; }
.contrast-light { background: rgba(255,255,255,.12); color: #fff; border: 1px solid rgba(255,255,255,.2); }
.contrast-light.good { background: rgba(255,255,255,.15); border-color: rgba(255,255,255,.35); }
.contrast-dark  { background: rgba(0,0,0,.2); color: #000; border: 1px solid rgba(0,0,0,.25); }
.contrast-dark.good  { background: rgba(0,0,0,.25); border-color: rgba(0,0,0,.5); }

/* --- Formats Grid --- */
.formats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
}

.format-card {
    background: var(--bg-card);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--bg-card-border);
    border-radius: var(--border-radius-sm);
    box-shadow: var(--shadow-card);
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    transition: var(--transition);
}
.format-card:hover { border-color: var(--bg-card-border-hover); }
.format-card.error { border-color: rgba(239,68,68,.4); animation: shake .4s ease; }
.format-card.success { border-color: rgba(34,197,94,.3); }

.format-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.format-title-group {
    display: flex;
    align-items: center;
    gap: 8px;
}
.format-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: #D4A843;
    flex-shrink: 0;
    transition: background .2s ease;
    box-shadow: 0 0 6px rgba(212,168,67,.4);
}
.format-name {
    font-size: .72rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: .1em;
    color: var(--text-secondary);
}

.btn-copy-fmt {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    font-family: var(--font);
    font-size: .72rem;
    font-weight: 600;
    color: var(--text-muted);
    background: rgba(242,240,235,.05);
    border: 1px solid rgba(242,240,235,.08);
    border-radius: 6px;
    padding: 4px 10px;
    cursor: pointer;
    transition: var(--transition);
}
.btn-copy-fmt:hover { color: var(--text-primary); background: rgba(242,240,235,.1); border-color: rgba(242,240,235,.16); }
.btn-copy-fmt.copied { color: var(--color-success); border-color: rgba(34,197,94,.3); background: rgba(34,197,94,.08); }

.format-input {
    width: 100%;
    background: var(--bg-input);
    color: var(--text-primary);
    border: 1px solid rgba(242,240,235,.08);
    border-radius: var(--border-radius-xs);
    padding: 10px 14px;
    font-family: var(--font-mono);
    font-size: .88rem;
    outline: none;
    transition: var(--transition);
}
.format-input:focus { border-color: rgba(212,168,67,.4); box-shadow: 0 0 0 3px rgba(212,168,67,.08); }
.format-input.error-input { border-color: rgba(239,68,68,.4); }
.format-input[readonly] { color: var(--text-secondary); cursor: default; }

.format-hint {
    font-size: .7rem;
    color: var(--text-muted);
    line-height: 1.4;
}

/* --- Info Section --- */
.info-section {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
}
.info-card {
    background: var(--bg-card);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--bg-card-border);
    border-radius: var(--border-radius-sm);
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    transition: var(--transition);
}
.info-card:hover { border-color: var(--bg-card-border-hover); transform: translateY(-2px); }
.info-icon {
    width: 48px; height: 48px;
    background: rgba(212,168,67,.1);
    border-radius: 12px;
    display: flex; align-items: center; justify-content: center;
    color: var(--brand-gold-light);
    flex-shrink: 0;
}
.info-card h3 { font-size: .95rem; font-weight: 700; color: var(--text-primary); }
.info-card p  { font-size: .85rem; color: var(--text-secondary); line-height: 1.6; }

/* --- Toast --- */
.toast {
    position: fixed; bottom: 24px; left: 50%;
    transform: translateX(-50%) translateY(80px);
    display: flex; align-items: center; gap: 8px;
    padding: 12px 20px;
    background: rgba(34,197,94,.95);
    color: #fff; font-size: .88rem; font-weight: 600;
    border-radius: var(--border-radius-sm);
    box-shadow: 0 8px 30px rgba(34,197,94,.3);
    z-index: 200; opacity: 0;
    transition: transform .35s cubic-bezier(.34,1.56,.64,1), opacity .35s ease;
    pointer-events: none;
}
.toast.show { transform: translateX(-50%) translateY(0); opacity: 1; }

/* --- Footer --- */
.footer { position: relative; z-index: 1; border-top: 1px solid var(--bg-card-border); padding: 40px 24px; }
.footer-inner { max-width: 1100px; margin: 0 auto; display: flex; flex-direction: column; align-items: center; gap: 20px; }
.footer-logo { font-size: 1.1rem; font-weight: 800; color: var(--text-primary); letter-spacing: -0.02em; transition: var(--transition); }
.footer-logo:hover { color: var(--brand-gold); }
.footer-accent { color: var(--brand-gold); }
.footer-nav { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; justify-content: center; }
.footer-nav a { font-size: .85rem; font-weight: 500; color: var(--text-muted); padding: 4px 10px; border-radius: var(--border-radius-xs); transition: var(--transition); }
.footer-nav a:hover { color: var(--text-primary); }
.footer-copy { font-size: .78rem; color: var(--text-muted); }

/* ================================================================
   RESPONSIVIDADE
   ================================================================ */
@media (max-width: 900px) {
    .formats-grid { grid-template-columns: repeat(2, 1fr); }
    .info-section  { grid-template-columns: repeat(2, 1fr); }
    .swatch-area   { flex: 0 0 180px; }
}

@media (max-width: 640px) {
    .nav { display: none; flex-direction: column; position: fixed; top: 72px; left: 0; right: 0; background: rgba(22,22,30,.97); backdrop-filter: blur(20px); padding: 16px; gap: 4px; border-bottom: 1px solid var(--bg-card-border); z-index: 99; }
    .nav.open { display: flex; }
    .nav-cta { margin-left: 0; text-align: center; }
    .nav-toggle { display: flex; }

    .page-hero { padding: 48px 16px 32px; }
    .page-content { padding: 32px 16px 48px; }

    .color-preview-card { flex-direction: column; min-height: auto; }
    .swatch-area { flex: 0 0 140px; }
    .swatch-overlay { background: rgba(0,0,0,.15); }
    .picker-label { color: rgba(255,255,255,.8); }
    .swatch-info { padding: 20px; }
    .swatch-name { font-size: 1.4rem; }

    .formats-grid { grid-template-columns: 1fr; }
    .info-section  { grid-template-columns: 1fr; }
}

@media (max-width: 420px) {
    .page-title { font-size: 1.8rem; }
}