/* ========================================================================== Koalaman — Learning Log Design tokens ========================================================================== */ :root { --bg: #f7f7f5; --surface: #ffffff; --text: #202020; --muted: #707070; --border: #deded9; --accent: #57547f; --accent-solid: #57547f; --accent-bg: #ecebf6; --dark: #202024; --dark-surface: #2c2c32; --white: #ffffff; --header-bg: rgba(247, 247, 245, 0.92); --radius-sm: 6px; --radius: 10px; --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Arial, sans-serif; --font-mono: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace; --content-width: 1120px; --gap: 1.5rem; color-scheme: light; } /* Dark mode. Toggled via data-theme on , set by assets/js/main.js. --accent-solid stays constant across themes — it's for solid button fills paired with white text, which read fine on both backgrounds. --accent itself is lightened here since it's also used as a plain text/border colour, which needs to stay legible against a dark page. */ :root[data-theme="dark"] { --bg: #17171b; --surface: #1e1e24; --text: #ececec; --muted: #9d9da5; --border: #313138; --accent: #a29ee0; --accent-bg: #262238; --dark: #0d0d10; --dark-surface: #1a1a20; --header-bg: rgba(23, 23, 27, 0.88); color-scheme: dark; } /* ========================================================================== Reset ========================================================================== */ *, *::before, *::after { box-sizing: border-box; } html { -webkit-text-size-adjust: 100%; } body { margin: 0; background: var(--bg); color: var(--text); font-family: var(--font-sans); font-size: 16px; line-height: 1.6; -webkit-font-smoothing: antialiased; } h1, h2, h3, h4, p, ul, ol { margin: 0; } ul, ol { padding: 0; list-style: none; } img { max-width: 100%; display: block; } a { color: inherit; text-decoration: none; } button { font-family: inherit; cursor: pointer; } .visually-hidden { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; } /* Visible, deliberate focus states */ a:focus-visible, button:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 2px; } @media (prefers-reduced-motion: reduce) { *, *::before, *::after { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; scroll-behavior: auto !important; } } /* ========================================================================== Layout helpers ========================================================================== */ .wrap { width: 100%; max-width: var(--content-width); margin: 0 auto; padding: 0 1.75rem; } .section { padding: 5rem 0; } .section--tight { padding: 3.5rem 0; } .section-head { display: flex; flex-wrap: wrap; align-items: flex-end; justify-content: space-between; gap: 1rem; margin-bottom: 2.5rem; border-bottom: 1px solid var(--border); padding-bottom: 1.5rem; } .section-label { display: block; font-family: var(--font-mono); font-size: 0.75rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--accent); margin-bottom: 0.6rem; } .section-title { font-size: clamp(1.6rem, 2.6vw, 2.15rem); font-weight: 600; letter-spacing: -0.01em; line-height: 1.15; } .section-desc { max-width: 46ch; color: var(--muted); font-size: 0.98rem; } .grid { display: grid; gap: var(--gap); } .grid--3 { grid-template-columns: repeat(3, 1fr); } .grid--2 { grid-template-columns: repeat(2, 1fr); } .grid--auto { grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); } @media (max-width: 860px) { .grid--3, .grid--2 { grid-template-columns: 1fr; } } /* ========================================================================== Header / Navigation ========================================================================== */ .site-header { position: sticky; top: 0; z-index: 40; background: var(--header-bg); backdrop-filter: saturate(140%) blur(6px); border-bottom: 1px solid var(--border); } .site-header .wrap { display: flex; align-items: center; justify-content: space-between; gap: 0.85rem; height: 68px; } .brand { font-weight: 700; font-size: 1.05rem; letter-spacing: -0.01em; } .nav-primary { display: flex; align-items: center; gap: 2rem; } .nav-links { display: flex; gap: 1.75rem; } .nav-links a { font-size: 0.93rem; color: var(--text); position: relative; padding: 0.25rem 0; } .nav-links a::after { content: ''; position: absolute; left: 0; right: 100%; bottom: -2px; height: 1px; background: var(--accent); transition: right 0.2s ease; } .nav-links a:hover::after { right: 0; } .lang-toggle { display: flex; align-items: center; gap: 0.4rem; font-size: 0.85rem; font-family: var(--font-mono); } .lang-toggle a { color: var(--muted); padding: 0.2rem 0.15rem; } .lang-toggle a[aria-current="true"] { color: var(--accent); font-weight: 600; } .lang-toggle span { color: var(--border); } .nav-wemos { display: inline-flex; align-items: center; gap: 0.4rem; font-family: var(--font-mono); font-size: 0.8rem; letter-spacing: 0.02em; color: var(--accent); border: 1px solid var(--accent); border-radius: 999px; padding: 0.4rem 0.9rem; transition: background 0.2s ease, color 0.2s ease, transform 0.25s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.25s ease; white-space: nowrap; } .nav-wemos:hover { background: var(--accent-solid); color: var(--white); transform: translateY(-1px); box-shadow: 0 8px 18px -10px rgba(87, 84, 127, 0.5); } .nav-wemos:active { transform: translateY(0) scale(0.96); } .nav-toggle { display: none; background: none; border: 1px solid var(--border); border-radius: var(--radius-sm); width: 40px; height: 40px; align-items: center; justify-content: center; transition: border-color 0.2s ease, transform 0.2s ease; } .nav-toggle:hover { border-color: var(--accent); } .nav-toggle:active { transform: scale(0.92); } .nav-toggle span, .nav-toggle span::before, .nav-toggle span::after { content: ''; display: block; width: 18px; height: 1.5px; background: var(--text); position: relative; transition: transform 0.25s cubic-bezier(0.65, 0, 0.35, 1), opacity 0.2s ease, top 0.25s cubic-bezier(0.65, 0, 0.35, 1); } .nav-toggle span::before { position: absolute; top: -6px; } .nav-toggle span::after { position: absolute; top: 6px; } /* Hamburger morphs into an X when the menu is open. */ .nav-toggle[aria-expanded="true"] span { background: transparent; } .nav-toggle[aria-expanded="true"] span::before { top: 0; transform: rotate(45deg); } .nav-toggle[aria-expanded="true"] span::after { top: 0; transform: rotate(-45deg); } @media (max-width: 860px) { .nav-toggle { display: flex; } .site-header .wrap { gap: 0.5rem; } .nav-wemos { font-size: 0.72rem; padding: 0.35rem 0.65rem; gap: 0.3rem; } .theme-toggle, .nav-toggle { width: 36px; height: 36px; } .nav-primary { position: absolute; top: 68px; left: 0; right: 0; background: var(--bg); border-bottom: 1px solid var(--border); flex-direction: column; align-items: flex-start; gap: 1.25rem; padding: 1.5rem 1.75rem 2rem; display: flex; opacity: 0; transform: translateY(-12px); visibility: hidden; pointer-events: none; transition: opacity 0.25s ease, transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1), visibility 0s linear 0.25s; } .nav-primary.is-open { opacity: 1; transform: translateY(0); visibility: visible; pointer-events: auto; transition: opacity 0.25s ease, transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1), visibility 0s linear 0s; } .nav-links { flex-direction: column; gap: 1rem; } /* Links cascade in one after another rather than appearing all at once. */ .nav-primary .nav-links li, .nav-primary .lang-toggle { opacity: 0; transform: translateY(-6px); transition: opacity 0.25s ease, transform 0.25s ease; } .nav-primary.is-open .nav-links li, .nav-primary.is-open .lang-toggle { opacity: 1; transform: translateY(0); } .nav-primary.is-open .nav-links li:nth-child(1) { transition-delay: 0.05s; } .nav-primary.is-open .nav-links li:nth-child(2) { transition-delay: 0.1s; } .nav-primary.is-open .nav-links li:nth-child(3) { transition-delay: 0.15s; } .nav-primary.is-open .lang-toggle { transition-delay: 0.2s; } } @media (prefers-reduced-motion: reduce) { .nav-primary, .nav-primary .nav-links li, .nav-primary .lang-toggle, .nav-toggle span, .nav-toggle span::before, .nav-toggle span::after { transition: none !important; } } /* ========================================================================== Hero ========================================================================== */ .hero { padding: 4rem 0 4.25rem; border-bottom: 1px solid var(--border); } .hero-grid { display: grid; grid-template-columns: 1.5fr 1fr; gap: 4rem; align-items: start; } .hero-main { padding-right: 1rem; } .hero-volume { font-family: var(--font-mono); font-size: 0.78rem; letter-spacing: 0.06em; text-transform: uppercase; color: var(--accent); padding-bottom: 1.25rem; border-bottom: 1px solid var(--border); } .hero-main .btn-primary { margin-top: 1.75rem; } /* Contents index — a real table of contents, not decoration */ .hero-index { border-left: 1px solid var(--border); padding-left: 2.5rem; } .hero-index-label { font-family: var(--font-mono); font-size: 0.75rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); margin-bottom: 1rem; } .hero-index ol { border-top: 1px solid var(--border); } .hero-index li { border-bottom: 1px solid var(--border); } .hero-index a { display: flex; align-items: baseline; gap: 0.85rem; padding: 0.9rem 0.6rem; margin: 0 -0.6rem; border-radius: var(--radius-sm); transition: background 0.25s ease, transform 0.25s cubic-bezier(0.34, 1.56, 0.64, 1); } .hero-index a:hover { background: var(--accent-bg); transform: translateX(4px); } .hero-index .index-num { font-family: var(--font-mono); font-size: 0.78rem; color: var(--muted); flex-shrink: 0; transition: color 0.2s ease; } .hero-index a:hover .index-num { color: var(--accent); } .hero-index .index-name { font-size: 1rem; font-weight: 500; flex-grow: 1; transition: color 0.15s ease; } .hero-index a:hover .index-name { color: var(--accent); } .hero-index .index-count { font-family: var(--font-mono); font-size: 0.78rem; color: var(--muted); white-space: nowrap; } @media (max-width: 860px) { .hero-grid { grid-template-columns: 1fr; gap: 2.75rem; } .hero-index { border-left: none; padding-left: 0; } } .btn { display: inline-flex; align-items: center; gap: 0.5rem; font-size: 0.95rem; font-weight: 500; border-radius: var(--radius-sm); padding: 0.75rem 1.4rem; transition: transform 0.25s cubic-bezier(0.34, 1.56, 0.64, 1), background 0.2s ease, border-color 0.2s ease, box-shadow 0.25s ease; } .btn-arrow { transition: transform 0.25s cubic-bezier(0.34, 1.56, 0.64, 1); display: inline-block; } .btn:hover .btn-arrow { transform: translateX(5px); } .btn:active { transform: scale(0.96); } .btn-primary { margin-top: 2.25rem; background: var(--accent-solid); color: var(--white); border: 1px solid var(--accent-solid); } .btn-primary:hover { background: #46456a; transform: translateY(-2px); box-shadow: 0 10px 24px -12px rgba(87, 84, 127, 0.55); } .btn-primary:active { transform: translateY(0) scale(0.97); } .btn-outline { background: transparent; color: var(--white); border: 1px solid rgba(255,255,255,0.35); } .btn-outline:hover { border-color: var(--white); transform: translateY(-2px); box-shadow: 0 10px 24px -14px rgba(0, 0, 0, 0.5); } .btn-outline:active { transform: translateY(0) scale(0.97); } /* ========================================================================== Cards ========================================================================== */ .card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 1.85rem; display: flex; flex-direction: column; gap: 0.9rem; position: relative; overflow: hidden; transition: border-color 0.25s ease, transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.3s ease; } .card::before { content: ''; position: absolute; top: 0; left: 0; height: 3px; width: 0; background: var(--accent); transition: width 0.3s ease; } .card:hover { border-color: var(--accent); transform: translateY(-5px); box-shadow: 0 14px 30px -18px rgba(32, 32, 32, 0.28); } .card:hover::before { width: 100%; } .card-code { font-family: var(--font-mono); font-size: 0.75rem; letter-spacing: 0.06em; color: var(--muted); } .card-title { font-size: 1.15rem; font-weight: 600; letter-spacing: -0.01em; } .card-desc { color: var(--muted); font-size: 0.94rem; flex-grow: 1; } .card-link { display: inline-flex; align-items: center; gap: 0.4rem; font-size: 0.9rem; font-weight: 500; color: var(--accent); margin-top: 0.25rem; } .card-link .btn-arrow { transition: transform 0.15s ease; } .card-link:hover .btn-arrow { transform: translateX(3px); } /* Featured project card */ .card--featured { display: grid; grid-template-columns: 1fr 1fr; gap: 2.5rem; padding: 2.5rem; align-items: center; } @media (max-width: 860px) { .card--featured { grid-template-columns: 1fr; } } .card--featured .card-desc { font-size: 1rem; } .tag-list { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-top: 0.5rem; } .tag { font-family: var(--font-mono); font-size: 0.75rem; letter-spacing: 0.03em; background: var(--accent-bg); color: var(--accent); border-radius: var(--radius-sm); padding: 0.3rem 0.6rem; } /* ========================================================================== ESP32 / Wemos section (dark) ========================================================================== */ .esp32-section { background: var(--dark); color: var(--white); padding: 4.5rem 0; margin-top: 1rem; } .esp32-head { margin-bottom: 2.25rem; } .esp32-label { font-family: var(--font-mono); font-size: 0.75rem; letter-spacing: 0.08em; text-transform: uppercase; color: rgba(255,255,255,0.55); margin-bottom: 0.75rem; } .esp32-title { font-size: clamp(1.4rem, 3vw, 1.85rem); font-weight: 600; letter-spacing: -0.01em; } .esp32-desc { margin-top: 0.75rem; max-width: 52ch; color: rgba(255,255,255,0.65); font-size: 0.98rem; } .esp32-grid { gap: 1.25rem; } .esp32-panel { display: flex; flex-direction: column; gap: 1.5rem; background: var(--dark-surface); border: 1px solid rgba(255,255,255,0.08); border-radius: var(--radius); padding: 2rem; transition: border-color 0.25s ease, transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.3s ease; } .esp32-panel:hover { border-color: rgba(255,255,255,0.3); transform: translateY(-4px); box-shadow: 0 16px 34px -18px rgba(0, 0, 0, 0.6); } .esp32-device-name { font-size: 1.1rem; font-weight: 600; letter-spacing: -0.005em; } .esp32-device-desc { margin-top: 0.5rem; color: rgba(255,255,255,0.6); font-size: 0.92rem; } .esp32-panel .btn-outline { align-self: flex-start; } /* ========================================================================== Footer ========================================================================== */ .site-footer { border-top: 1px solid var(--border); padding: 2rem 0; } .site-footer .wrap { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 0.75rem; font-size: 0.85rem; color: var(--muted); } /* ========================================================================== French sentence log (learning/french/) ========================================================================== */ .subpage-head { max-width: 640px; } .subpage-eyebrow { font-family: var(--font-mono); font-size: 0.78rem; letter-spacing: 0.06em; text-transform: uppercase; color: var(--accent); margin-bottom: 0.75rem; } .subpage-title { font-size: clamp(1.6rem, 3vw, 2.1rem); font-weight: 600; letter-spacing: -0.01em; } .subpage-desc { margin-top: 0.85rem; color: var(--muted); font-size: 0.98rem; max-width: 56ch; } .back-link { display: inline-flex; align-items: center; gap: 0.4rem; font-size: 0.88rem; color: var(--muted); margin-bottom: 2rem; } .back-link:hover { color: var(--accent); } .french-form { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 1.85rem 2rem; margin-top: 2.5rem; max-width: 640px; } .form-title { font-size: 1.05rem; font-weight: 600; margin-bottom: 1.4rem; } .form-group { margin-bottom: 1.25rem; } .form-label { display: block; font-size: 0.85rem; font-weight: 500; margin-bottom: 0.45rem; } .form-input, .form-textarea { width: 100%; border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 0.65rem 0.85rem; font-family: var(--font-sans); font-size: 0.95rem; background: var(--bg); color: var(--text); } .form-textarea { min-height: 78px; resize: vertical; } .form-input:focus, .form-textarea:focus { outline: 2px solid var(--accent); outline-offset: 1px; border-color: var(--accent); } .form-hint { margin-top: 1.4rem; } .form-message { border-radius: var(--radius-sm); padding: 0.75rem 1rem; font-size: 0.9rem; margin-bottom: 1.4rem; max-width: 640px; } .form-message--error { color: #8a2f2f; background: #fbeaea; border: 1px solid #f0c4c4; } .form-message--success { color: #2f6a45; background: #eaf7ee; border: 1px solid #c7e6cf; } .log-wall { margin-top: 3rem; display: flex; flex-direction: column; gap: 1rem; max-width: 640px; } .log-wall-title { font-family: var(--font-mono); font-size: 0.75rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); margin-bottom: 1rem; border-bottom: 1px solid var(--border); padding-bottom: 0.75rem; } .log-entry { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 1.4rem 1.6rem; } .log-entry-sentence { font-size: 1.03rem; line-height: 1.55; } .log-entry-note { margin-top: 0.5rem; color: var(--muted); font-size: 0.9rem; } .log-entry-date { margin-top: 0.85rem; font-family: var(--font-mono); font-size: 0.75rem; color: var(--muted); } .log-empty { color: var(--muted); font-size: 0.95rem; } /* ========================================================================== Scroll reveal ========================================================================== */ .reveal { opacity: 0; transform: translateY(28px); transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1), transform 0.7s cubic-bezier(0.16, 1, 0.3, 1); } .reveal.is-visible { opacity: 1; transform: translateY(0); } @media (prefers-reduced-motion: reduce) { .reveal { opacity: 1; transform: none; transition: none; } } /* ========================================================================== Clown mascot (floating, honks on click) ========================================================================== */ .clown-mascot { position: fixed; right: 1.5rem; bottom: 1.5rem; z-index: 50; width: 84px; height: 84px; border: none; background: transparent; padding: 0; cursor: pointer; animation: clown-bob 3.4s ease-in-out infinite; filter: drop-shadow(0 10px 18px rgba(32, 32, 32, 0.28)); } .clown-mascot img { width: 100%; height: 100%; object-fit: contain; pointer-events: none; user-select: none; } .clown-mascot:hover { animation-play-state: paused; transform: scale(1.08) rotate(-4deg); transition: transform 0.25s cubic-bezier(0.34, 1.56, 0.64, 1); } .clown-mascot:focus-visible { outline: 2px solid var(--accent); outline-offset: 4px; border-radius: 999px; } .clown-mascot.is-honking { animation: clown-honk 0.55s cubic-bezier(0.34, 1.56, 0.64, 1); } @keyframes clown-bob { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-7px); } } @keyframes clown-honk { 0% { transform: scale(1, 1) rotate(0deg); } 20% { transform: scale(0.82, 1.18) rotate(-8deg); } 40% { transform: scale(1.18, 0.85) rotate(6deg); } 60% { transform: scale(0.93, 1.08) rotate(-4deg); } 80% { transform: scale(1.05, 0.97) rotate(2deg); } 100% { transform: scale(1, 1) rotate(0deg); } } @media (max-width: 640px) { .clown-mascot { width: 64px; height: 64px; right: 1rem; bottom: 1rem; } } @media (prefers-reduced-motion: reduce) { .clown-mascot { animation: none; } .clown-mascot.is-honking { animation: none; } } /* ========================================================================== Dark mode toggle — circular flood-fill reveal ========================================================================== */ /* Disable the browser's default cross-fade so only our clip-path circle animation is visible, giving a clean "paint bucket" flood from the button rather than two effects fighting each other. */ ::view-transition-old(root), ::view-transition-new(root) { animation: none; mix-blend-mode: normal; } ::view-transition-old(root) { z-index: 1; } ::view-transition-new(root) { z-index: 2; } .theme-toggle { position: relative; display: inline-flex; align-items: center; justify-content: center; width: 38px; height: 38px; flex-shrink: 0; border-radius: 999px; border: 1px solid var(--border); background: var(--surface); color: var(--text); cursor: pointer; transition: border-color 0.2s ease, transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1); } .theme-toggle:hover { border-color: var(--accent); transform: rotate(-10deg); } .theme-toggle:active { transform: scale(0.9); } .theme-toggle-icons { position: relative; width: 18px; height: 18px; } .theme-toggle-icons svg { position: absolute; inset: 0; transition: opacity 0.3s ease, transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1); } .theme-toggle .icon-moon { opacity: 1; transform: rotate(0deg) scale(1); } .theme-toggle .icon-sun { opacity: 0; transform: rotate(-90deg) scale(0.4); } :root[data-theme="dark"] .theme-toggle .icon-moon { opacity: 0; transform: rotate(90deg) scale(0.4); } :root[data-theme="dark"] .theme-toggle .icon-sun { opacity: 1; transform: rotate(0deg) scale(1); } @media (prefers-reduced-motion: reduce) { .theme-toggle, .theme-toggle-icons svg { transition: none; } } /* Extra breathing room on very narrow phones where the header buttons were crowding the hamburger toggle off the edge. */ @media (max-width: 400px) { .wrap { padding: 0 1.1rem; } } /* ========================================================================== Letters ========================================================================== */ .letters-identity-bar { display: flex; align-items: center; justify-content: space-between; gap: 1rem; padding: 0.85rem 1.1rem; margin-top: 2rem; background: var(--accent-bg); border-radius: var(--radius-sm); font-size: 0.9rem; } .letters-identity-bar a { color: var(--accent); font-weight: 500; } .letters-identity-bar a:hover { text-decoration: underline; } .letters-menu { display: flex; flex-direction: column; gap: 0.75rem; margin-top: 1.5rem; } .letters-menu-item { display: flex; align-items: center; justify-content: space-between; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 1.25rem 1.5rem; transition: border-color 0.25s ease, transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.3s ease; } .letters-menu-item:hover { border-color: var(--accent); transform: translateX(4px); box-shadow: 0 10px 24px -16px rgba(32, 32, 32, 0.25); } .letters-menu-item .btn-arrow { color: var(--accent); transition: transform 0.25s cubic-bezier(0.34, 1.56, 0.64, 1); } .letters-menu-item:hover .btn-arrow { transform: translateX(4px); }