/* ===========================
   KIWIFY WIKI — Design System
   Prefix: kwi-
   Dark Premium Theme (Cyan/Teal)
   =========================== */

:root {
    --kwi-bg: #0a0a0f;
    --kwi-bg-card: #12121a;
    --kwi-bg-elevated: #1a1a26;
    --kwi-bg-hover: #22222e;
    --kwi-border: #2a2a3a;
    --kwi-border-light: #1e1e2e;
    --kwi-text: #e8e8f0;
    --kwi-text-secondary: #9393a8;
    --kwi-text-muted: #6b6b80;
    --kwi-accent: #06b6d4;
    --kwi-accent-hover: #22d3ee;
    --kwi-accent-dim: rgba(6, 182, 212, 0.12);
    --kwi-green: #10b981;
    --kwi-yellow: #f59e0b;
    --kwi-red: #ef4444;
    --kwi-purple: #a78bfa;
    --kwi-radius: 12px;
    --kwi-radius-sm: 8px;
    --kwi-shadow: 0 2px 16px rgba(0,0,0,0.3);
    --kwi-font: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --kwi-max: 1200px;
}

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

html { scroll-behavior: smooth; }

body {
    font-family: var(--kwi-font);
    background: var(--kwi-bg);
    color: var(--kwi-text);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
}

a { color: var(--kwi-accent); text-decoration: none; transition: color .2s; }
a:hover { color: var(--kwi-accent-hover); }

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

/* Container */
.kwi-container { max-width: var(--kwi-max); margin: 0 auto; padding: 0 20px; }
.kwi-container--narrow { max-width: 800px; }

/* ─── NAV ─── */
.kwi-nav {
    position: sticky; top: 0; z-index: 100;
    background: rgba(10, 10, 15, 0.85);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--kwi-border-light);
}
.kwi-nav__inner { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.kwi-nav__brand { display: flex; align-items: center; gap: 10px; color: var(--kwi-text); }
.kwi-nav__logo {
    width: 36px; height: 36px; border-radius: 10px;
    background: linear-gradient(135deg, var(--kwi-accent), #0891b2);
    display: flex; align-items: center; justify-content: center;
    font-weight: 800; font-size: 18px; color: #fff;
}
.kwi-nav__title { font-size: 16px; font-weight: 500; color: var(--kwi-text-secondary); }
.kwi-nav__title strong { color: var(--kwi-text); font-weight: 700; }
.kwi-nav__links { display: flex; gap: 32px; }
.kwi-nav__link {
    font-size: 14px; font-weight: 500; color: var(--kwi-text-secondary);
    transition: color .2s; position: relative;
}
.kwi-nav__link:hover, .kwi-nav__link--active { color: var(--kwi-text); }
.kwi-nav__link--active::after {
    content: ''; position: absolute; bottom: -22px; left: 0; right: 0;
    height: 2px; background: var(--kwi-accent); border-radius: 2px;
}
.kwi-nav__toggle {
    display: none; background: none; border: none; color: var(--kwi-text);
    cursor: pointer; padding: 8px;
}

/* Mobile Menu */
.kwi-mobile-menu {
    display: none; flex-direction: column; background: var(--kwi-bg-card);
    border-bottom: 1px solid var(--kwi-border); padding: 16px 20px;
}
.kwi-mobile-menu--open { display: flex; }
.kwi-mobile-menu__link { padding: 12px 0; color: var(--kwi-text-secondary); font-weight: 500; font-size: 15px; border-bottom: 1px solid var(--kwi-border-light); }

/* ─── HERO ─── */
.kwi-hero {
    padding: 80px 20px 64px;
    text-align: center;
    background: linear-gradient(180deg, rgba(6,182,212,0.06) 0%, transparent 70%);
    border-bottom: 1px solid var(--kwi-border-light);
}
.kwi-hero__badge {
    display: inline-block; padding: 6px 16px; border-radius: 20px;
    background: var(--kwi-accent-dim); color: var(--kwi-accent);
    font-size: 12px; font-weight: 600; text-transform: uppercase; letter-spacing: 1px;
    margin-bottom: 20px;
}
.kwi-hero__title {
    font-size: clamp(28px, 5vw, 48px); font-weight: 800;
    line-height: 1.15; max-width: 700px; margin: 0 auto 16px;
    background: linear-gradient(135deg, var(--kwi-text), var(--kwi-accent));
    -webkit-background-clip: text; -webkit-text-fill-color: transparent;
    background-clip: text;
}
.kwi-hero__subtitle {
    font-size: 17px; color: var(--kwi-text-secondary); max-width: 600px; margin: 0 auto 40px;
}
.kwi-hero__stats { display: flex; justify-content: center; gap: 48px; }
.kwi-hero-stat { text-align: center; }
.kwi-hero-stat__num { display: block; font-size: 32px; font-weight: 800; color: var(--kwi-accent); }
.kwi-hero-stat__label { font-size: 13px; color: var(--kwi-text-muted); text-transform: uppercase; letter-spacing: 1px; }

/* ─── MAIN ─── */
.kwi-main { padding: 48px 0 80px; }
.kwi-main--article { padding: 32px 0 80px; }

/* Sections */
.kwi-section { margin-bottom: 56px; }
.kwi-section-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 24px; }
.kwi-section__title { font-size: 22px; font-weight: 700; margin-bottom: 24px; }
.kwi-section-header .kwi-section__title { margin-bottom: 0; }
.kwi-section__link { font-size: 14px; font-weight: 600; color: var(--kwi-accent); }

/* Page Header */
.kwi-page-header { margin-bottom: 48px; }
.kwi-page-header__title { font-size: clamp(24px, 4vw, 36px); font-weight: 800; margin-bottom: 8px; }
.kwi-page-header__desc { font-size: 16px; color: var(--kwi-text-secondary); max-width: 600px; margin-bottom: 12px; }
.kwi-page-header__count { font-size: 13px; color: var(--kwi-text-muted); }

/* ─── CATEGORIES GRID ─── */
.kwi-categories-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 16px; }
.kwi-cat-card {
    padding: 20px; border-radius: var(--kwi-radius);
    background: var(--kwi-bg-card); border: 1px solid var(--kwi-border-light);
    transition: all .2s; display: block; color: var(--kwi-text);
}
.kwi-cat-card:hover { border-color: var(--kwi-accent); background: var(--kwi-bg-elevated); transform: translateY(-2px); }
.kwi-cat-card__name { font-size: 15px; font-weight: 700; margin-bottom: 6px; }
.kwi-cat-card__desc { font-size: 13px; color: var(--kwi-text-muted); line-height: 1.5; margin-bottom: 8px; }
.kwi-cat-card__count { font-size: 12px; color: var(--kwi-accent); font-weight: 600; }

/* ─── ARTICLE CARDS ─── */
.kwi-articles-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(340px, 1fr)); gap: 20px; }
.kwi-article-card {
    background: var(--kwi-bg-card); border: 1px solid var(--kwi-border-light);
    border-radius: var(--kwi-radius); padding: 24px;
    transition: all .2s;
}
.kwi-article-card:hover { border-color: var(--kwi-border); transform: translateY(-2px); box-shadow: var(--kwi-shadow); }
.kwi-article-card__top { display: flex; justify-content: space-between; align-items: center; margin-bottom: 12px; }
.kwi-article-card__cat {
    font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: 1px;
    color: var(--kwi-accent); background: var(--kwi-accent-dim); padding: 4px 10px; border-radius: 6px;
}
.kwi-article-card__diff { font-size: 12px; font-weight: 600; }
.kwi-article-card__title { font-size: 17px; font-weight: 700; margin-bottom: 8px; line-height: 1.4; }
.kwi-article-card__title a { color: var(--kwi-text); }
.kwi-article-card__title a:hover { color: var(--kwi-accent); }
.kwi-article-card__excerpt { font-size: 14px; color: var(--kwi-text-secondary); line-height: 1.6; margin-bottom: 16px; }
.kwi-article-card__footer { display: flex; justify-content: space-between; font-size: 13px; color: var(--kwi-text-muted); }

/* ─── TOOL CARDS ─── */
.kwi-tools-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 16px; }
.kwi-tool-card {
    background: var(--kwi-bg-card); border: 1px solid var(--kwi-border-light);
    border-radius: var(--kwi-radius); padding: 20px;
    transition: all .2s; display: block; color: var(--kwi-text);
}
.kwi-tool-card:hover { border-color: var(--kwi-accent); transform: translateY(-2px); }
.kwi-tool-card__header { display: flex; align-items: center; gap: 12px; margin-bottom: 12px; }
.kwi-tool-card__icon {
    width: 44px; height: 44px; border-radius: 12px;
    background: linear-gradient(135deg, var(--kwi-accent), #0891b2);
    display: flex; align-items: center; justify-content: center;
    font-weight: 800; font-size: 20px; color: #fff; flex-shrink: 0;
}
.kwi-tool-card__name { font-size: 16px; font-weight: 700; }
.kwi-tool-card__cat { font-size: 12px; color: var(--kwi-text-muted); }
.kwi-tool-card__rating {
    margin-left: auto; font-size: 18px; font-weight: 800; color: var(--kwi-yellow);
    background: rgba(245, 158, 11, 0.1); padding: 4px 10px; border-radius: 8px;
}
.kwi-tool-card__desc { font-size: 14px; color: var(--kwi-text-secondary); line-height: 1.6; }

/* Tool Detail Header */
.kwi-tool-header {
    display: flex; align-items: center; gap: 20px; margin-bottom: 32px;
    padding-bottom: 24px; border-bottom: 1px solid var(--kwi-border-light);
}
.kwi-tool-header__icon {
    width: 64px; height: 64px; border-radius: 16px;
    background: linear-gradient(135deg, var(--kwi-accent), #0891b2);
    display: flex; align-items: center; justify-content: center;
    font-weight: 800; font-size: 28px; color: #fff; flex-shrink: 0;
}
.kwi-tool-header__name { font-size: 28px; font-weight: 800; }
.kwi-tool-header__cat { font-size: 14px; color: var(--kwi-text-muted); }
.kwi-tool-header__rating { margin-left: auto; text-align: center; }
.kwi-tool-header__rating-num { display: block; font-size: 36px; font-weight: 800; color: var(--kwi-yellow); }
.kwi-tool-header__rating-label { font-size: 14px; color: var(--kwi-text-muted); }

.kwi-tool-sections { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.kwi-tool-section {
    background: var(--kwi-bg-card); padding: 24px; border-radius: var(--kwi-radius);
    border: 1px solid var(--kwi-border-light);
}
.kwi-tool-section--verdict { grid-column: 1 / -1; border-color: var(--kwi-accent); background: var(--kwi-accent-dim); }
.kwi-tool-section__title { font-size: 13px; font-weight: 700; text-transform: uppercase; letter-spacing: 1px; color: var(--kwi-accent); margin-bottom: 8px; }
.kwi-tool-section__content { font-size: 15px; color: var(--kwi-text-secondary); line-height: 1.7; }

/* ─── GLOSSARY ─── */
.kwi-glossary-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 16px; }
.kwi-glossary-item {
    background: var(--kwi-bg-card); padding: 16px 20px; border-radius: var(--kwi-radius-sm);
    border: 1px solid var(--kwi-border-light);
}
.kwi-glossary-item__term { font-size: 15px; font-weight: 700; color: var(--kwi-accent); margin-bottom: 4px; }
.kwi-glossary-item__def { font-size: 14px; color: var(--kwi-text-secondary); line-height: 1.6; }

/* Glossary Full Page */
.kwi-glossary-letters { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 40px; }
.kwi-glossary-letter {
    width: 36px; height: 36px; border-radius: 8px;
    background: var(--kwi-bg-card); border: 1px solid var(--kwi-border-light);
    display: flex; align-items: center; justify-content: center;
    font-weight: 700; font-size: 14px; color: var(--kwi-text);
    transition: all .2s;
}
.kwi-glossary-letter:hover { background: var(--kwi-accent); color: #fff; border-color: var(--kwi-accent); }

.kwi-glossary-section { margin-bottom: 40px; }
.kwi-glossary-section__letter {
    font-size: 28px; font-weight: 800; color: var(--kwi-accent);
    padding-bottom: 12px; border-bottom: 2px solid var(--kwi-border-light); margin-bottom: 16px;
}
.kwi-glossary-dl { display: flex; flex-direction: column; gap: 12px; }
.kwi-glossary-entry {
    background: var(--kwi-bg-card); padding: 16px 20px; border-radius: var(--kwi-radius-sm);
    border: 1px solid var(--kwi-border-light);
}
.kwi-glossary-entry__term { font-size: 16px; font-weight: 700; color: var(--kwi-text); margin-bottom: 4px; }
.kwi-glossary-entry__def { font-size: 14px; color: var(--kwi-text-secondary); line-height: 1.7; }

/* ─── ARTICLE PAGE ─── */
.kwi-article__breadcrumb { font-size: 13px; color: var(--kwi-text-muted); margin-bottom: 20px; display: flex; gap: 6px; flex-wrap: wrap; }
.kwi-article__breadcrumb a { color: var(--kwi-text-secondary); }
.kwi-article__breadcrumb span { color: var(--kwi-text-muted); }

.kwi-article__badges { display: flex; gap: 10px; margin-bottom: 16px; }
.kwi-article__diff {
    font-size: 12px; font-weight: 700; padding: 4px 12px; border-radius: 6px;
    text-transform: uppercase; letter-spacing: 0.5px;
}
.kwi-article__ai-badge {
    font-size: 12px; font-weight: 600; padding: 4px 12px; border-radius: 6px;
    background: rgba(167, 139, 250, 0.12); color: var(--kwi-purple);
}
.kwi-article__title {
    font-size: clamp(24px, 4vw, 36px); font-weight: 800; line-height: 1.2;
    margin-bottom: 16px;
}
.kwi-article__meta { display: flex; gap: 24px; font-size: 14px; color: var(--kwi-text-muted); margin-bottom: 32px; padding-bottom: 24px; border-bottom: 1px solid var(--kwi-border-light); }

.kwi-article__content {
    font-size: 16px; line-height: 1.8; color: var(--kwi-text-secondary);
    max-width: 800px;
}
.kwi-article__content h2 { font-size: 22px; font-weight: 700; color: var(--kwi-text); margin: 32px 0 12px; }
.kwi-article__content h3 { font-size: 18px; font-weight: 700; color: var(--kwi-text); margin: 24px 0 8px; }
.kwi-article__content p { margin-bottom: 16px; }
.kwi-article__content ul, .kwi-article__content ol { margin: 16px 0; padding-left: 24px; }
.kwi-article__content li { margin-bottom: 6px; }
.kwi-article__content code {
    background: var(--kwi-bg-elevated); padding: 2px 8px; border-radius: 4px;
    font-size: 14px; color: var(--kwi-accent);
}
.kwi-article__content pre {
    background: var(--kwi-bg-elevated); padding: 20px; border-radius: var(--kwi-radius-sm);
    overflow-x: auto; margin: 20px 0;
}
.kwi-article__content blockquote {
    border-left: 3px solid var(--kwi-accent); padding: 12px 20px; margin: 20px 0;
    background: var(--kwi-accent-dim); border-radius: 0 var(--kwi-radius-sm) var(--kwi-radius-sm) 0;
}
.kwi-article__content a { color: var(--kwi-accent); }

/* Related */
.kwi-related { margin-top: 56px; padding-top: 40px; border-top: 1px solid var(--kwi-border-light); }

/* ─── PAGINATION ─── */
.kwi-pagination { display: flex; justify-content: center; gap: 8px; margin-top: 40px; }
.kwi-pagination__link {
    width: 36px; height: 36px; border-radius: 8px;
    display: flex; align-items: center; justify-content: center;
    font-size: 14px; font-weight: 600; color: var(--kwi-text-secondary);
    background: var(--kwi-bg-card); border: 1px solid var(--kwi-border-light);
    transition: all .2s;
}
.kwi-pagination__link:hover { border-color: var(--kwi-accent); color: var(--kwi-text); }
.kwi-pagination__link--active { background: var(--kwi-accent); color: #fff; border-color: var(--kwi-accent); }

/* ─── 404 ─── */
.kwi-404 { text-align: center; padding: 120px 20px; }
.kwi-404__code { font-size: 80px; font-weight: 800; color: var(--kwi-accent); margin-bottom: 16px; }
.kwi-404__text { font-size: 16px; color: var(--kwi-text-secondary); margin-bottom: 32px; max-width: 400px; margin-left: auto; margin-right: auto; }

/* ─── BUTTONS ─── */
.kwi-btn {
    display: inline-flex; align-items: center; justify-content: center;
    padding: 12px 24px; border-radius: var(--kwi-radius-sm);
    font-size: 14px; font-weight: 600; cursor: pointer; border: none;
    transition: all .2s;
}
.kwi-btn--primary { background: var(--kwi-accent); color: #fff; }
.kwi-btn--primary:hover { background: var(--kwi-accent-hover); color: #fff; }

/* ─── EMPTY STATE ─── */
.kwi-empty { text-align: center; padding: 48px 20px; color: var(--kwi-text-muted); font-size: 15px; }
.kwi-empty a { color: var(--kwi-accent); }

/* ─── FOOTER ─── */
.kwi-footer {
    border-top: 1px solid var(--kwi-border-light);
    padding: 40px 0;
}
.kwi-footer__inner { text-align: center; }
.kwi-footer__logo { font-size: 18px; font-weight: 700; color: var(--kwi-text); margin-bottom: 8px; }
.kwi-footer__desc { font-size: 14px; color: var(--kwi-text-muted); max-width: 400px; margin: 0 auto 16px; }
.kwi-footer__links { display: flex; justify-content: center; gap: 24px; margin-bottom: 16px; }
.kwi-footer__links a { font-size: 14px; color: var(--kwi-text-secondary); }
.kwi-footer__copy { font-size: 13px; color: var(--kwi-text-muted); }
.kwi-footer__sigla { font-size: 12px; color: var(--kwi-text-muted); line-height: 1.7; }
.kwi-footer__sigla strong { color: var(--kwi-accent); }
.kwi-footer__credit { font-size: 13px; color: var(--kwi-text-muted); }
.kwi-footer__credit a { color: var(--kwi-accent); font-weight: 600; }
.kwi-footer__credit a:hover { opacity: 0.8; }

/* ─── RESPONSIVE ─── */
@media (max-width: 768px) {
    .kwi-nav__links { display: none; }
    .kwi-nav__toggle { display: block; }
    .kwi-hero { padding: 48px 20px 40px; }
    .kwi-hero__stats { gap: 24px; }
    .kwi-hero-stat__num { font-size: 24px; }
    .kwi-articles-grid { grid-template-columns: 1fr; }
    .kwi-tools-grid { grid-template-columns: 1fr; }
    .kwi-tool-sections { grid-template-columns: 1fr; }
    .kwi-tool-header { flex-wrap: wrap; }
    .kwi-tool-header__rating { margin-left: 0; }
    .kwi-categories-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 480px) {
    .kwi-categories-grid { grid-template-columns: 1fr; }
    .kwi-hero__stats { flex-direction: column; gap: 12px; }
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}