/* ========================================================================== QuimicaEZ — Design System "Laboratório escuro / molecular" HTML/CSS/JS puro. Tokens em :root, componentes por classe (baixa especificidade). As fontes são carregadas via no . ========================================================================== */ /* ---- Tokens ------------------------------------------------------------- */ :root { --bg: #0A0E14; --bg-2: #0D131B; --surface: #121821; --surface-2: #19212D; --line: rgba(140, 165, 200, 0.12); --line-strong: rgba(140, 165, 200, 0.24); --ink: #E8EEF5; --ink-dim: #94A2B6; --ink-faint: #5E6C7E; --accent: #35F0A0; /* verde molecular — assinatura */ --accent-deep: #06210F; /* texto sobre o acento */ --accent-soft: rgba(53, 240, 160, 0.14); --accent-line: rgba(53, 240, 160, 0.38); --cyan: #55D6FF; /* átomo frio, uso pontual no grafismo */ --wrong: #FF6B7A; --wrong-soft: rgba(255, 107, 122, 0.14); --font-display: "Sora", system-ui, sans-serif; --font-body: "Inter", system-ui, sans-serif; --font-mono: "JetBrains Mono", ui-monospace, monospace; --wrap: 1140px; --read: 720px; --radius: 16px; --radius-sm: 10px; --shadow: 0 24px 60px -28px rgba(0, 0, 0, 0.75); --glow: 0 0 0 1px var(--accent-line), 0 18px 50px -20px rgba(53, 240, 160, 0.35); --ease: cubic-bezier(0.22, 1, 0.36, 1); } /* ---- Reset / base ------------------------------------------------------- */ *, *::before, *::after { box-sizing: border-box; } * { margin: 0; } html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; } body { font-family: var(--font-body); color: var(--ink); background: var(--bg); line-height: 1.6; font-size: 1rem; -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility; overflow-x: hidden; min-height: 100vh; } /* Atmosfera: brilho ambiente + malha de ligações discreta */ body::before { content: ""; position: fixed; inset: 0; z-index: -2; background: radial-gradient(760px 520px at 82% -8%, rgba(53, 240, 160, 0.10), transparent 60%), radial-gradient(680px 520px at 6% 8%, rgba(85, 214, 255, 0.06), transparent 55%), var(--bg); } body::after { content: ""; position: fixed; inset: 0; z-index: -1; background-image: linear-gradient(var(--line) 1px, transparent 1px), linear-gradient(90deg, var(--line) 1px, transparent 1px); background-size: 68px 68px; -webkit-mask-image: radial-gradient(ellipse 100% 70% at 50% 0%, #000 30%, transparent 78%); mask-image: radial-gradient(ellipse 100% 70% at 50% 0%, #000 30%, transparent 78%); opacity: 0.5; pointer-events: none; } img { max-width: 100%; height: auto; display: block; } a { color: inherit; text-decoration: none; } button { font: inherit; color: inherit; cursor: pointer; background: none; border: none; } ::selection { background: var(--accent); color: var(--accent-deep); } :focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 4px; } .skip-link { position: absolute; left: 16px; top: -60px; z-index: 100; background: var(--accent); color: var(--accent-deep); padding: 10px 16px; border-radius: 8px; font-weight: 600; transition: top 0.2s var(--ease); } .skip-link:focus { top: 16px; } /* ---- Tipografia -------------------------------------------------------- */ h1, h2, h3, h4 { font-family: var(--font-display); line-height: 1.08; font-weight: 700; letter-spacing: -0.02em; } .eyebrow { font-family: var(--font-mono); font-size: 0.78rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--accent); font-weight: 500; } .mono { font-family: var(--font-mono); } .formula { font-family: var(--font-mono); font-size: 0.95em; background: var(--accent-soft); color: var(--accent); padding: 0.08em 0.42em; border-radius: 6px; white-space: nowrap; } .formula sub { font-size: 0.72em; } /* ---- Layout ------------------------------------------------------------ */ .container { width: 100%; max-width: var(--wrap); margin-inline: auto; padding-inline: clamp(20px, 5vw, 40px); } .section { padding-block: clamp(56px, 9vw, 108px); } .section--tight { padding-block: clamp(40px, 6vw, 72px); } main { display: block; } .lede { color: var(--ink-dim); font-size: clamp(1.02rem, 1.6vw, 1.18rem); max-width: 56ch; } /* ---- Navegação --------------------------------------------------------- */ .nav { position: sticky; top: 0; z-index: 50; background: rgba(10, 14, 20, 0.72); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); border-bottom: 1px solid transparent; transition: border-color 0.3s var(--ease), background 0.3s var(--ease); } .nav.is-scrolled { border-bottom-color: var(--line); background: rgba(10, 14, 20, 0.9); } .nav__inner { max-width: var(--wrap); margin-inline: auto; padding: 14px clamp(20px, 5vw, 40px); display: flex; align-items: center; justify-content: space-between; gap: 20px; } .brand { display: inline-flex; align-items: center; gap: 10px; font-family: var(--font-display); font-weight: 800; font-size: 1.18rem; letter-spacing: -0.03em; } .brand__mark { width: 30px; height: 30px; color: var(--accent); flex: none; } .brand__ez { color: var(--accent); } .nav__menu { display: flex; align-items: center; gap: 6px; } .nav__link { font-size: 0.95rem; color: var(--ink-dim); padding: 8px 14px; border-radius: 9px; font-weight: 500; transition: color 0.2s var(--ease), background 0.2s var(--ease); } .nav__link:hover { color: var(--ink); background: var(--surface); } .nav__link--active { color: var(--ink); } .nav__link--active::after { content: ""; display: block; height: 2px; margin-top: 4px; border-radius: 2px; background: var(--accent); box-shadow: 0 0 10px var(--accent); } .nav__link--cta { color: var(--accent-deep); background: var(--accent); font-weight: 600; margin-left: 6px; } .nav__link--cta:hover { color: var(--accent-deep); background: #5cf5b5; } .nav__toggle { display: none; width: 44px; height: 44px; border-radius: 10px; flex-direction: column; align-items: center; justify-content: center; gap: 5px; } .nav__toggle span { display: block; width: 22px; height: 2px; background: var(--ink); border-radius: 2px; transition: transform 0.25s var(--ease), opacity 0.25s var(--ease); } .nav__toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); } .nav__toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; } .nav__toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); } @media (max-width: 820px) { .nav__toggle { display: flex; } .nav__menu { position: fixed; inset: 66px 0 auto 0; flex-direction: column; align-items: stretch; gap: 4px; padding: 16px clamp(20px, 5vw, 40px) 26px; background: rgba(10, 14, 20, 0.98); border-bottom: 1px solid var(--line); transform: translateY(-12px); opacity: 0; visibility: hidden; transition: opacity 0.24s var(--ease), transform 0.24s var(--ease), visibility 0.24s; } .nav__menu.is-open { transform: translateY(0); opacity: 1; visibility: visible; } .nav__link { padding: 12px 14px; font-size: 1.05rem; } .nav__link--active::after { display: none; } .nav__link--active { background: var(--surface); } .nav__link--cta { margin-left: 0; margin-top: 6px; text-align: center; } } /* ---- Botões ------------------------------------------------------------ */ .btn { display: inline-flex; align-items: center; gap: 9px; font-family: var(--font-display); font-weight: 600; font-size: 0.98rem; padding: 13px 24px; border-radius: 999px; transition: transform 0.2s var(--ease), box-shadow 0.2s var(--ease), background 0.2s var(--ease), color 0.2s var(--ease), border-color 0.2s var(--ease); border: 1px solid transparent; white-space: nowrap; } .btn:active { transform: translateY(1px); } .btn--accent { background: var(--accent); color: var(--accent-deep); box-shadow: 0 12px 34px -14px rgba(53, 240, 160, 0.6); } .btn--accent:hover { background: #5cf5b5; box-shadow: 0 16px 40px -12px rgba(53, 240, 160, 0.75); transform: translateY(-2px); } .btn--ghost { border-color: var(--line-strong); color: var(--ink); } .btn--ghost:hover { border-color: var(--accent-line); color: var(--accent); background: var(--accent-soft); } .btn__arrow { transition: transform 0.2s var(--ease); } .btn:hover .btn__arrow { transform: translateX(3px); } /* ---- Hero -------------------------------------------------------------- */ .hero { position: relative; } .hero__inner { display: grid; grid-template-columns: 1.15fr 0.85fr; gap: clamp(32px, 5vw, 72px); align-items: center; padding-block: clamp(60px, 10vw, 128px); } .hero__title { font-size: clamp(2.6rem, 7vw, 5rem); font-weight: 800; margin-top: 20px; line-height: 0.98; } .hero__title em { font-style: normal; color: var(--accent); } .hero__sub { margin-top: 22px; } .hero__actions { margin-top: 34px; display: flex; flex-wrap: wrap; gap: 14px; } .hero__stats { margin-top: 44px; display: flex; gap: clamp(20px, 4vw, 44px); flex-wrap: wrap; } .stat__num { font-family: var(--font-display); font-weight: 800; font-size: 1.7rem; color: var(--ink); } .stat__label { font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink-faint); } .hero__art { position: relative; display: grid; place-items: center; min-height: 320px; } /* Molécula (SVG inline) */ .molecule { width: 100%; max-width: 420px; height: auto; overflow: visible; } .molecule .bond { stroke: var(--accent-line); stroke-width: 2; fill: none; stroke-linecap: round; } .molecule .bond--draw { stroke-dasharray: 220; stroke-dashoffset: 220; animation: bond-draw 1.5s var(--ease) forwards; } .molecule .node { fill: var(--bg); stroke: var(--accent); stroke-width: 2.5; } .molecule .node--pulse { animation: node-pulse 3.2s ease-in-out infinite; transform-box: fill-box; transform-origin: center; } .molecule .node--cyan { stroke: var(--cyan); } .molecule .atom { font-family: var(--font-mono); font-size: 13px; font-weight: 600; fill: var(--ink); text-anchor: middle; dominant-baseline: central; } .molecule .halo { fill: var(--accent); opacity: 0.12; animation: node-pulse 3.2s ease-in-out infinite; } @keyframes bond-draw { to { stroke-dashoffset: 0; } } @keyframes node-pulse { 0%, 100% { transform: scale(1); } 50% { transform: scale(1.14); } } @media (max-width: 900px) { .hero__inner { grid-template-columns: 1fr; } .hero__art { order: -1; min-height: 220px; } .molecule { max-width: 300px; } } /* ---- Grade de seções / cards ------------------------------------------ */ .section-head { max-width: var(--read); margin-bottom: clamp(32px, 5vw, 52px); } .section-head h2 { font-size: clamp(1.9rem, 4vw, 2.8rem); margin-top: 14px; } .section-head p { margin-top: 16px; color: var(--ink-dim); } .card-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 22px; } .card { position: relative; display: flex; flex-direction: column; padding: 30px; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; transition: transform 0.3s var(--ease), border-color 0.3s var(--ease), box-shadow 0.3s var(--ease); } .card::before { content: ""; position: absolute; inset: 0; background: radial-gradient(420px 200px at 90% -20%, var(--accent-soft), transparent 70%); opacity: 0; transition: opacity 0.3s var(--ease); pointer-events: none; } .card:hover { transform: translateY(-5px); border-color: var(--accent-line); box-shadow: var(--shadow); } .card:hover::before { opacity: 1; } .card__index { font-family: var(--font-mono); font-size: 0.8rem; letter-spacing: 0.12em; color: var(--accent); margin-bottom: 20px; } .card__title { font-size: 1.5rem; margin-bottom: 12px; } .card__desc { color: var(--ink-dim); font-size: 0.96rem; flex: 1; } .card__tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 22px; } .tag { font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.04em; color: var(--ink-dim); border: 1px solid var(--line-strong); padding: 4px 10px; border-radius: 999px; } .card__link { margin-top: 22px; display: inline-flex; align-items: center; gap: 8px; color: var(--accent); font-weight: 600; font-family: var(--font-display); } .card__link .btn__arrow { transition: transform 0.2s var(--ease); } .card:hover .card__link .btn__arrow { transform: translateX(4px); } .card__stretch { position: absolute; inset: 0; z-index: 1; } /* link que cobre o card */ /* ---- Página de artigo (conteúdo) -------------------------------------- */ .page-head { padding-block: clamp(48px, 8vw, 96px) clamp(24px, 4vw, 40px); border-bottom: 1px solid var(--line); } .page-head__inner { max-width: var(--read); } .page-head h1 { font-size: clamp(2.1rem, 5.5vw, 3.6rem); margin-top: 16px; } .page-head p { margin-top: 18px; color: var(--ink-dim); font-size: 1.08rem; } .article { max-width: var(--read); margin-inline: auto; padding-block: clamp(40px, 6vw, 64px); } .article > p { color: var(--ink-dim); margin-bottom: 20px; } .article > p strong, .article b { color: var(--ink); font-weight: 600; } .article h2 { font-size: clamp(1.5rem, 3.4vw, 2.1rem); margin: 52px 0 6px; padding-top: 30px; border-top: 1px solid var(--line); scroll-margin-top: 90px; } .article h2 .idx { font-family: var(--font-mono); font-size: 0.9rem; color: var(--accent); display: block; margin-bottom: 8px; letter-spacing: 0.1em; font-weight: 500; } .article h3 { font-size: 1.2rem; margin: 32px 0 10px; color: var(--ink); } .article ul { color: var(--ink-dim); margin: 0 0 22px; padding-left: 0; list-style: none; display: grid; gap: 12px; } .article ul li { position: relative; padding-left: 26px; } .article ul li::before { content: ""; position: absolute; left: 4px; top: 0.62em; width: 8px; height: 8px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 8px var(--accent-line); } .callout { margin: 26px 0; padding: 18px 22px; background: var(--surface); border: 1px solid var(--line); border-left: 3px solid var(--accent); border-radius: 0 var(--radius-sm) var(--radius-sm) 0; color: var(--ink-dim); } .callout__label { font-family: var(--font-mono); font-size: 0.74rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--accent); display: block; margin-bottom: 6px; } /* Figuras de química em card claro (diagramas de linha ficam legíveis) */ .figure { margin: 30px 0; } .figure--light { background: #F6FAFC; border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; box-shadow: var(--shadow); } .figure--light img { margin-inline: auto; border-radius: 6px; } .figure figcaption { margin-top: 14px; font-family: var(--font-mono); font-size: 0.78rem; letter-spacing: 0.03em; color: var(--ink-faint); text-align: center; } .figure--light figcaption { color: var(--ink-faint); } .source { font-family: var(--font-mono); font-size: 0.76rem; color: var(--ink-faint); margin-top: 30px; } .next-steps { display: grid; gap: 14px; margin-top: 48px; padding-top: 34px; border-top: 1px solid var(--line); } .next-steps__label { font-family: var(--font-mono); font-size: 0.76rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--ink-faint); } .next-link { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 18px 22px; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-sm); transition: border-color 0.2s var(--ease), transform 0.2s var(--ease), background 0.2s var(--ease); } .next-link:hover { border-color: var(--accent-line); transform: translateX(4px); background: var(--surface-2); } .next-link span { font-weight: 600; font-family: var(--font-display); } .next-link small { display: block; color: var(--ink-dim); font-weight: 400; font-family: var(--font-body); font-size: 0.86rem; margin-top: 2px; } .next-link .arrow { color: var(--accent); flex: none; } /* ---- Vídeo ------------------------------------------------------------- */ .video-stage { max-width: 900px; margin-inline: auto; padding-block: clamp(36px, 6vw, 60px); } .video-frame { position: relative; aspect-ratio: 16 / 9; border-radius: var(--radius); overflow: hidden; border: 1px solid var(--line-strong); background: #000; box-shadow: var(--shadow); } .video-frame iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; } .video-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 28px; justify-content: center; } .playlist { display: grid; gap: 12px; margin-top: 40px; } .playlist__item { display: flex; align-items: center; gap: 16px; padding: 14px 18px; border: 1px solid var(--line); border-radius: var(--radius-sm); background: var(--surface); transition: border-color 0.2s var(--ease), background 0.2s var(--ease); } .playlist__item:hover { border-color: var(--accent-line); background: var(--surface-2); } .playlist__item--current { border-color: var(--accent-line); background: var(--accent-soft); } .playlist__num { font-family: var(--font-mono); font-size: 0.82rem; color: var(--accent); flex: none; } .playlist__title { font-weight: 500; } .playlist__badge { margin-left: auto; font-family: var(--font-mono); font-size: 0.7rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink-faint); } /* ---- Quiz -------------------------------------------------------------- */ .quiz { max-width: 760px; margin-inline: auto; padding-block: clamp(36px, 6vw, 60px); } .quiz__head { margin-bottom: 32px; } .quiz__title { font-size: clamp(1.7rem, 4vw, 2.4rem); margin-top: 12px; } .quiz__progress { display: flex; align-items: center; gap: 16px; margin-top: 26px; } .quiz__bar { flex: 1; height: 8px; background: var(--surface-2); border-radius: 999px; overflow: hidden; border: 1px solid var(--line); } .quiz__fill { display: block; height: 100%; width: 0; background: linear-gradient(90deg, var(--cyan), var(--accent)); border-radius: 999px; transition: width 0.5s var(--ease); } .quiz__count { font-family: var(--font-mono); font-size: 0.9rem; color: var(--ink-dim); flex: none; } .quiz__count b { color: var(--accent); } .quiz__list { list-style: none; padding: 0; margin: 0; } .question { display: none; } .question.is-active { display: block; animation: q-in 0.4s var(--ease); } @keyframes q-in { from { opacity: 0; transform: translateY(12px); } to { opacity: 1; transform: none; } } .question__index { font-family: var(--font-mono); font-size: 0.8rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--accent); margin-bottom: 14px; } .question__stem { color: var(--ink); font-size: 1.06rem; margin-bottom: 16px; } .question__ask { color: var(--ink); font-weight: 600; margin: 20px 0 16px; font-family: var(--font-display); } .options { display: grid; gap: 12px; } .option { display: flex; align-items: center; gap: 16px; width: 100%; text-align: left; padding: 16px 18px; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-sm); color: var(--ink); transition: border-color 0.2s var(--ease), background 0.2s var(--ease), transform 0.15s var(--ease); } .option:hover:not(:disabled) { border-color: var(--accent-line); background: var(--surface-2); transform: translateX(3px); } .option:disabled { cursor: default; } .option__key { flex: none; width: 34px; height: 34px; display: grid; place-items: center; border-radius: 8px; background: var(--surface-2); border: 1px solid var(--line-strong); font-family: var(--font-mono); font-weight: 600; color: var(--ink-dim); transition: background 0.2s var(--ease), color 0.2s var(--ease), border-color 0.2s var(--ease); } .option:hover:not(:disabled) .option__key { color: var(--accent); border-color: var(--accent-line); } .option__text { flex: 1; } .option.is-correct { border-color: var(--accent); background: var(--accent-soft); } .option.is-correct .option__key { background: var(--accent); color: var(--accent-deep); border-color: var(--accent); } .option.is-wrong { border-color: var(--wrong); background: var(--wrong-soft); } .option.is-wrong .option__key { background: var(--wrong); color: #2a0a0e; border-color: var(--wrong); } .option.is-locked:not(.is-correct):not(.is-wrong) { opacity: 0.55; } .question__feedback { margin-top: 18px; font-family: var(--font-mono); font-size: 0.9rem; padding: 12px 16px; border-radius: var(--radius-sm); } .question__feedback.is-right { color: var(--accent); background: var(--accent-soft); } .question__feedback.is-wrong { color: var(--wrong); background: var(--wrong-soft); } .quiz__foot { margin-top: 26px; display: flex; justify-content: flex-end; } .quiz__result { text-align: center; padding: 46px 30px; background: var(--surface); border: 1px solid var(--accent-line); border-radius: var(--radius); box-shadow: var(--glow); animation: q-in 0.4s var(--ease); } .quiz__score { font-family: var(--font-display); font-weight: 800; font-size: clamp(3rem, 12vw, 5rem); line-height: 1; margin: 18px 0 10px; color: var(--ink); } .quiz__score b { color: var(--accent); } .quiz__score small { font-size: 0.32em; color: var(--ink-faint); font-weight: 600; } .quiz__verdict { color: var(--ink-dim); max-width: 44ch; margin: 0 auto 28px; } .quiz__result-actions { display: flex; flex-wrap: wrap; gap: 14px; justify-content: center; } /* ---- Rodapé ------------------------------------------------------------ */ .footer { border-top: 1px solid var(--line); margin-top: 40px; background: var(--bg-2); } .footer__inner { max-width: var(--wrap); margin-inline: auto; padding: 48px clamp(20px, 5vw, 40px); display: flex; flex-wrap: wrap; gap: 30px; justify-content: space-between; align-items: flex-start; } .footer__brand { max-width: 300px; } .footer__tag { color: var(--ink-dim); font-size: 0.9rem; margin-top: 12px; } .footer__nav { display: flex; flex-wrap: wrap; gap: 26px; } .footer__col { display: grid; gap: 10px; } .footer__col h4 { font-family: var(--font-mono); font-size: 0.74rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--ink-faint); font-weight: 500; } .footer__col a { color: var(--ink-dim); font-size: 0.94rem; transition: color 0.2s var(--ease); } .footer__col a:hover { color: var(--accent); } .footer__meta { width: 100%; border-top: 1px solid var(--line); padding: 22px clamp(20px, 5vw, 40px); max-width: var(--wrap); margin-inline: auto; font-family: var(--font-mono); font-size: 0.78rem; color: var(--ink-faint); letter-spacing: 0.03em; } /* ---- Scroll reveal (só esconde se houver JS: ) --------- */ .js [data-reveal] { opacity: 0; transform: translateY(22px); transition: opacity 0.6s var(--ease), transform 0.6s var(--ease); } .js [data-reveal].is-visible { opacity: 1; transform: none; } .js [data-reveal][data-delay="1"] { transition-delay: 0.08s; } .js [data-reveal][data-delay="2"] { transition-delay: 0.16s; } .js [data-reveal][data-delay="3"] { transition-delay: 0.24s; } /* ---- Movimento reduzido ------------------------------------------------ */ @media (prefers-reduced-motion: reduce) { * { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; scroll-behavior: auto !important; } [data-reveal] { opacity: 1; transform: none; } .molecule .bond--draw { stroke-dashoffset: 0; } }