/* PyCourse design system — playful, for young learners (≈13 y/o). One stylesheet for LTR (en) and RTL (fa): CSS logical properties only, so the layout mirrors automatically under . Never use left/right physical properties here (code blocks excepted — code is always LTR). */ :root { --bg: #f4f5ff; --bg-soft: #ebedff; --surface: #ffffff; --ink: #23264d; --muted: #62688f; --brand: #5b5bf0; --brand-ink: #4338ca; --brand-soft: #e4e6ff; --violet: #8b5cf6; --pink: #ec4899; --sun: #ffb703; --orange: #ff8a3d; --ok: #10b981; --ok-ink: #047857; --ok-soft: #d9f7ec; --bad: #ef4444; --bad-soft: #fee2e2; --warn: #f59e0b; --warn-soft: #fef3d8; --border: #e4e7fb; --radius: 14px; --radius-lg: 20px; --shadow: 0 1px 2px rgba(35, 38, 77, 0.06), 0 4px 12px rgba(35, 38, 77, 0.06); --shadow-lift: 0 4px 10px rgba(35, 38, 77, 0.08), 0 12px 28px rgba(35, 38, 77, 0.12); --grad-brand: linear-gradient(135deg, #6366f1 0%, #8b5cf6 55%, #d946ef 100%); --grad-sun: linear-gradient(90deg, #ffb703, #ff8a3d); font-size: 16px; } * { box-sizing: border-box; } html { scroll-behavior: smooth; } body { margin: 0; min-height: 100dvh; background: var(--bg); color: var(--ink); font-family: ui-rounded, "SF Pro Rounded", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; line-height: 1.65; display: flex; flex-direction: column; } /* Soft candy background: two glows + a faint dot grid */ body::before { content: ""; position: fixed; inset: 0; z-index: -1; background: radial-gradient(38rem 24rem at 12% -4%, rgba(99, 102, 241, 0.14), transparent 60%), radial-gradient(34rem 22rem at 96% 8%, rgba(236, 72, 153, 0.10), transparent 60%), radial-gradient(circle, rgba(99, 102, 241, 0.10) 1px, transparent 1.5px); background-size: auto, auto, 26px 26px; } [dir="rtl"] body, [dir="rtl"] button, [dir="rtl"] input, [dir="rtl"] select, [dir="rtl"] textarea { font-family: Vazirmatn, system-ui, -apple-system, "Segoe UI", Tahoma, sans-serif; } h1, h2, h3 { line-height: 1.3; letter-spacing: -0.015em; } h1 { font-size: 1.75rem; font-weight: 800; } h2 { font-size: 1.3rem; font-weight: 800; } .container { width: 100%; max-width: 1020px; margin-inline: auto; padding-inline: 1rem; } main.container { flex: 1; padding-block-end: 2rem; } /* ============ Header ============ */ .site-header { position: sticky; inset-block-start: 0; z-index: 50; background: rgba(255, 255, 255, 0.82); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); border-block-end: 1px solid var(--border); } .nav { display: flex; align-items: center; justify-content: space-between; gap: 0.75rem; min-height: 4rem; flex-wrap: wrap; padding-block: 0.4rem; } .brand { display: inline-flex; align-items: center; gap: 0.55rem; text-decoration: none; color: var(--ink); font-weight: 800; font-size: 1.2rem; letter-spacing: -0.02em; } .brand-logo { display: grid; place-items: center; inline-size: 2.35rem; block-size: 2.35rem; border-radius: 12px; background: var(--grad-brand); font-size: 1.25rem; box-shadow: 0 4px 10px rgba(99, 102, 241, 0.35); rotate: -4deg; transition: rotate 0.2s ease, scale 0.2s ease; } .brand:hover .brand-logo { rotate: 4deg; scale: 1.06; } .brand-name b { color: var(--brand); } .nav-links { display: flex; align-items: center; gap: 0.35rem; flex-wrap: wrap; } .nav-links > a, .nav-links .linklike { color: var(--muted); text-decoration: none; font-weight: 600; padding: 0.4rem 0.8rem; border-radius: 999px; transition: background 0.15s ease, color 0.15s ease; } .nav-links > a:hover, .nav-links .linklike:hover { background: var(--brand-soft); color: var(--brand-ink); } .user-chip { display: inline-flex; align-items: center; gap: 0.45rem; text-decoration: none; color: var(--ink); font-weight: 700; padding: 0.25rem 0.8rem 0.25rem 0.3rem; padding-inline: 0.3rem 0.8rem; border-radius: 999px; border: 1.5px solid var(--border); background: var(--surface); transition: border-color 0.15s ease, box-shadow 0.15s ease; } .user-chip:hover { border-color: var(--brand); box-shadow: var(--shadow); } .avatar { display: grid; place-items: center; inline-size: 1.9rem; block-size: 1.9rem; border-radius: 50%; background: var(--grad-brand); color: #fff; font-weight: 800; font-size: 0.9rem; text-transform: uppercase; } .inline-form { display: inline; } .linklike { background: none; border: none; padding: 0; color: var(--muted); cursor: pointer; font: inherit; } .lang-switch .linklike { border: 1.5px solid var(--border); background: var(--surface); font-weight: 700; font-size: 0.85rem; padding: 0.3rem 0.75rem; } .lang-switch .linklike:hover { border-color: var(--brand); } /* ============ Buttons ============ */ .btn { display: inline-flex; align-items: center; justify-content: center; gap: 0.4rem; background: var(--grad-brand); color: #fff; border: none; border-radius: 999px; padding: 0.6rem 1.4rem; font: inherit; font-weight: 800; text-decoration: none; cursor: pointer; box-shadow: 0 4px 12px rgba(99, 102, 241, 0.35); transition: translate 0.15s ease, box-shadow 0.15s ease, scale 0.1s ease; } .btn:hover { translate: 0 -2px; box-shadow: 0 8px 18px rgba(99, 102, 241, 0.4); color: #fff; } .btn:active { scale: 0.97; translate: 0 0; } .btn-small { padding: 0.35rem 1rem; font-size: 0.9rem; } .btn-secondary { background: var(--surface); color: var(--brand-ink); border: 2px solid var(--brand-soft); box-shadow: none; } .btn-secondary:hover { border-color: var(--brand); color: var(--brand-ink); box-shadow: var(--shadow); } .btn-sun { background: var(--grad-sun); box-shadow: 0 4px 12px rgba(255, 138, 61, 0.4); } .btn-sun:hover { box-shadow: 0 8px 18px rgba(255, 138, 61, 0.45); } .btn[disabled] { opacity: 0.55; cursor: not-allowed; translate: none; scale: none; } /* ============ Cards ============ */ .card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg); box-shadow: var(--shadow); padding: 1.4rem 1.5rem; margin-block: 1.1rem; } .card > h2:first-child { margin-block-start: 0; } .card-title { display: flex; align-items: center; gap: 0.5rem; margin-block: 0 0.75rem; } /* Page header row (back link + title) */ .page-back { display: inline-flex; align-items: center; gap: 0.3rem; color: var(--muted); text-decoration: none; font-weight: 700; font-size: 0.92rem; margin-block: 1rem 0.25rem; padding: 0.25rem 0.7rem; border-radius: 999px; } .page-back:hover { background: var(--brand-soft); color: var(--brand-ink); } /* ============ Forms ============ */ form p { margin-block: 0.85rem; } label { display: block; font-weight: 700; margin-block-end: 0.3rem; } input[type="text"], input[type="password"], input[type="email"], input[type="number"], input[type="url"], select, textarea { width: 100%; max-width: 28rem; padding: 0.6rem 0.9rem; border: 2px solid var(--border); border-radius: 12px; font: inherit; background: var(--surface); color: var(--ink); transition: border-color 0.15s ease, box-shadow 0.15s ease; } input:focus, select:focus, textarea:focus { outline: none; border-color: var(--brand); box-shadow: 0 0 0 4px rgba(91, 91, 240, 0.15); } .helptext { color: var(--muted); font-size: 0.85rem; display: block; } .errorlist { color: var(--bad); list-style: none; padding: 0; margin-block: 0.25rem; font-weight: 600; font-size: 0.9rem; } /* Self-hosted captcha widget */ img.captcha { display: block; border: 2px solid var(--border); border-radius: 12px; margin-block: 0.4rem; background: #fff; } input[name="captcha_1"] { direction: ltr; /* challenge characters are Latin */ max-width: 12rem; } /* Auth pages */ .auth-card { max-width: 26.5rem; margin-inline: auto; margin-block-start: 2.5rem; text-align: start; } .auth-hero { display: block; text-align: center; font-size: 2.6rem; margin-block-end: 0.25rem; filter: drop-shadow(0 6px 10px rgba(99, 102, 241, 0.3)); } .auth-card h1 { text-align: center; margin-block: 0.25rem 0.5rem; } .auth-sub { text-align: center; color: var(--muted); margin-block-start: 0; } .auth-card input { max-width: none; } .auth-card .btn { width: 100%; margin-block-start: 0.5rem; } .auth-links { text-align: center; font-size: 0.95rem; } .auth-links a { color: var(--brand-ink); font-weight: 700; } /* Flash messages */ .flash { border-radius: var(--radius); padding: 0.7rem 1.1rem; margin-block: 1rem; border: 1.5px solid var(--border); background: var(--surface); font-weight: 600; box-shadow: var(--shadow); } .flash-success { border-color: var(--ok); background: var(--ok-soft); color: var(--ok-ink); } .flash-error { border-color: var(--bad); background: var(--bad-soft); } /* ============ Hero (logged-out roadmap) ============ */ .hero { position: relative; overflow: hidden; display: flex; align-items: center; justify-content: space-between; gap: 2rem; flex-wrap: wrap; background: var(--grad-brand); color: #fff; border-radius: calc(var(--radius-lg) * 1.2); padding: 2.4rem 2.4rem; margin-block: 1.5rem; box-shadow: var(--shadow-lift); } .hero::after { content: ""; position: absolute; inset: 0; background: radial-gradient(circle at 85% 20%, rgba(255, 255, 255, 0.18) 0 6rem, transparent 6.5rem), radial-gradient(circle at 70% 90%, rgba(255, 255, 255, 0.10) 0 4rem, transparent 4.5rem), radial-gradient(circle, rgba(255, 255, 255, 0.16) 1.5px, transparent 2px); background-size: auto, auto, 30px 30px; pointer-events: none; } .hero h1 { margin: 0 0 0.4rem; font-size: 2.1rem; } .hero p { margin: 0; opacity: 0.92; font-size: 1.05rem; max-width: 34rem; } .hero .btn { position: relative; z-index: 1; margin-block-start: 1.1rem; } .hero-art { position: relative; z-index: 1; font-size: 4.5rem; filter: drop-shadow(0 10px 16px rgba(0, 0, 0, 0.25)); animation: float 4s ease-in-out infinite; } @keyframes float { 0%, 100% { translate: 0 0; rotate: -4deg; } 50% { translate: 0 -12px; rotate: 4deg; } } .hero-progress { text-align: center; } .hero-progress small { opacity: 0.85; } /* Progress ring */ .ring { --p: 0; inline-size: 92px; block-size: 92px; border-radius: 50%; background: radial-gradient(closest-side, #4c46b6 79%, transparent 80% 100%), conic-gradient(#ffd166 calc(var(--p) * 1%), rgba(255, 255, 255, 0.25) 0); display: grid; place-items: center; margin-inline: auto; margin-block-end: 0.35rem; } .ring span { font-weight: 800; font-size: 1.15rem; } /* ============ Player HUD ============ */ .hud { position: relative; overflow: hidden; display: flex; align-items: center; gap: 1.5rem; flex-wrap: wrap; background: linear-gradient(135deg, #232160 0%, #3b2f8f 55%, #5b21b6 100%); color: #fff; border-radius: calc(var(--radius-lg) * 1.2); padding: 1.35rem 1.8rem; margin-block: 1.5rem; box-shadow: var(--shadow-lift); } .hud::after { content: ""; position: absolute; inset: 0; background: radial-gradient(circle, rgba(255, 255, 255, 0.18) 1px, transparent 1.6px); background-size: 22px 22px; mask-image: linear-gradient(115deg, transparent 35%, #000); pointer-events: none; } .hud-rank { display: flex; align-items: center; gap: 0.8rem; } .hud-rank-emoji { font-size: 2rem; display: grid; place-items: center; inline-size: 3.4rem; block-size: 3.4rem; border-radius: 16px; background: rgba(255, 255, 255, 0.14); border: 1px solid rgba(255, 255, 255, 0.25); box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.25); } .hud-rank-name { font-weight: 800; font-size: 1.15rem; } .hud-level { opacity: 0.8; font-size: 0.9rem; font-weight: 600; } .hud-xp { flex: 1; min-inline-size: 190px; } .hud-xp-labels { display: flex; justify-content: space-between; font-size: 0.88rem; font-weight: 700; margin-block-end: 0.3rem; } .hud-xp .helptext { color: rgba(255, 255, 255, 0.65); } .hud-badges { display: flex; gap: 0.3rem; font-size: 1.45rem; flex-wrap: wrap; max-inline-size: 12rem; } .hud-badge { filter: drop-shadow(0 2px 3px rgba(0, 0, 0, 0.45)); transition: scale 0.15s ease; } .hud-badge:hover { scale: 1.3; } .ring-hud { inline-size: 76px; block-size: 76px; background: radial-gradient(closest-side, #37307c 79%, transparent 80% 100%), conic-gradient(#ffd166 calc(var(--p) * 1%), rgba(255, 255, 255, 0.2) 0); } .ring-hud span { font-size: 0.95rem; } /* Progress bars */ .bar { flex: 0 1 180px; block-size: 12px; border-radius: 999px; background: var(--bg-soft); overflow: hidden; } .bar-fill { position: relative; block-size: 100%; border-radius: 999px; background: linear-gradient(90deg, var(--brand), var(--violet)); transition: inline-size 0.5s ease; } .bar-fill::after { content: ""; position: absolute; inset: 0; background: linear-gradient(100deg, transparent 30%, rgba(255, 255, 255, 0.5) 50%, transparent 70%); animation: shimmer 2.4s ease-in-out infinite; } @keyframes shimmer { 0% { translate: -100% 0; } 60%, 100% { translate: 100% 0; } } .bar-hud { background: rgba(255, 255, 255, 0.18); } .bar-hud .bar-fill { background: var(--grad-sun); } .bar-label { color: var(--muted); font-size: 0.85rem; font-weight: 700; } /* ============ Worlds & quest map ============ */ .world { margin-block: 2.6rem; --world-accent: var(--brand); --world-soft: var(--brand-soft); } .world-b { --world-accent: #0ea5e9; --world-soft: #dbf1ff; } .world-c { --world-accent: #ec4899; --world-soft: #ffe0ef; } .world-head { display: flex; align-items: center; justify-content: space-between; gap: 1rem; flex-wrap: wrap; } .world-title { display: flex; align-items: center; gap: 0.6rem; font-size: 1.4rem; margin-block: 0.5rem; } .world-emoji { display: grid; place-items: center; inline-size: 2.6rem; block-size: 2.6rem; border-radius: 14px; background: var(--world-soft); font-size: 1.3rem; rotate: -4deg; } .world-conquered .world-emoji { background: #fef3c7; } .world-count { font-weight: 800; color: var(--world-accent); background: var(--surface); border: 2px solid var(--world-soft); border-radius: 999px; padding: 0.25rem 0.9rem; } /* The winding path */ .quest-path { list-style: none; padding: 0; margin: 1rem 0 0; position: relative; } .quest-path::before { content: ""; position: absolute; inset-block: 1.6rem; inset-inline-start: 1.55rem; border-inline-start: 3px dashed color-mix(in srgb, var(--world-accent) 35%, transparent); } .quest-node { position: relative; display: flex; gap: 1rem; padding-block: 0.75rem; align-items: flex-start; } .node-marker { position: relative; z-index: 1; inline-size: 3.2rem; block-size: 3.2rem; border-radius: 50%; display: grid; place-items: center; font-weight: 800; font-size: 1.1rem; background: var(--surface); border: 3px solid var(--border); color: var(--muted); flex-shrink: 0; box-shadow: var(--shadow); } .state-conquered .node-marker { background: linear-gradient(135deg, #fcd34d, #f59e0b); border-color: #f59e0b; font-size: 1.35rem; box-shadow: 0 4px 12px rgba(245, 158, 11, 0.45); } .state-active .node-marker { background: var(--world-accent); border-color: color-mix(in srgb, var(--world-accent) 70%, #000); color: #fff; animation: node-pulse 1.6s ease-in-out infinite; } @keyframes node-pulse { 0%, 100% { box-shadow: 0 0 0 0 color-mix(in srgb, var(--world-accent) 45%, transparent); } 50% { box-shadow: 0 0 0 13px transparent; } } .node-card { position: relative; flex: 1; background: var(--surface); border: 1.5px solid var(--border); border-radius: var(--radius-lg); box-shadow: var(--shadow); padding: 1rem 1.2rem; transition: box-shadow 0.15s ease, translate 0.15s ease, border-color 0.15s ease; } .quest-node:hover .node-card { box-shadow: var(--shadow-lift); translate: 0 -2px; border-color: color-mix(in srgb, var(--world-accent) 45%, var(--border)); } .state-conquered .node-card { background: linear-gradient(180deg, #fffbeb 0%, var(--surface) 65%); border-color: #fcd34d; } .state-active .node-card { border-color: var(--world-accent); } .state-unexplored .node-card { opacity: 0.8; filter: saturate(0.55); } .node-title { font-weight: 800; font-size: 1.08rem; color: var(--ink); text-decoration: none; display: inline-flex; gap: 0.4rem; align-items: center; } .node-title:hover { color: var(--world-accent); } .stamp { position: absolute; inset-block-start: 0.7rem; inset-inline-end: 0.9rem; border: 2px solid #d97706; color: #b45309; border-radius: 8px; padding: 0.05rem 0.55rem; font-size: 0.7rem; font-weight: 900; letter-spacing: 0.12em; rotate: -6deg; opacity: 0.9; background: rgba(255, 251, 235, 0.85); } [dir="rtl"] .stamp { rotate: 6deg; } .here-label { position: absolute; inset-block-start: -0.75rem; inset-inline-start: 1rem; background: var(--world-accent); color: #fff; border-radius: 999px; padding: 0.12rem 0.75rem; font-size: 0.75rem; font-weight: 800; box-shadow: var(--shadow); } .node-meta { display: flex; gap: 0.4rem; margin-block: 0.45rem; flex-wrap: wrap; } .meta-chip { font-size: 0.78rem; font-weight: 700; color: var(--muted); background: var(--bg); border: 1.5px solid var(--border); border-radius: 999px; padding: 0.1rem 0.65rem; } .meta-on { color: var(--ok-ink); background: var(--ok-soft); border-color: transparent; } /* Challenge pills */ .pill-row, .pill-row-quest { display: flex; flex-wrap: wrap; gap: 0.45rem; margin-block-start: 0.5rem; } .pill { display: inline-flex; align-items: center; gap: 0.35rem; border-radius: 999px; padding: 0.3rem 0.9rem; font-size: 0.87rem; font-weight: 700; text-decoration: none; border: 1.5px solid var(--border); color: var(--muted); background: var(--surface); transition: translate 0.12s ease, border-color 0.12s ease, box-shadow 0.12s ease; } .pill-lg { font-size: 0.98rem; padding: 0.45rem 1.1rem; } .pill:hover { border-color: var(--brand); color: var(--brand-ink); translate: 0 -1px; box-shadow: var(--shadow); } .pill-done { background: var(--ok-soft); color: var(--ok-ink); border-color: transparent; } .pill-half { background: var(--warn-soft); color: #b45309; border-color: transparent; } .pill-todo { background: var(--surface); } .stars { font-size: 0.78rem; letter-spacing: -0.05em; } /* ============ Badges ============ */ .badge-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 0.8rem; } .badge-card { border: 1.5px solid #fde68a; border-radius: var(--radius); padding: 1rem; text-align: center; display: grid; gap: 0.25rem; background: linear-gradient(180deg, #fffbea 0%, var(--surface) 75%); transition: translate 0.15s ease, box-shadow 0.15s ease; } .badge-card:hover { translate: 0 -3px; box-shadow: var(--shadow-lift); } .badge-emoji { font-size: 2.2rem; filter: drop-shadow(0 3px 4px rgba(180, 83, 9, 0.25)); } .badge-card small { color: var(--muted); } .badge-toast { position: fixed; inset-block-end: 1.5rem; inset-inline-end: 1.5rem; background: var(--ink); color: #fff; border-radius: var(--radius); padding: 0.85rem 1.25rem; font-weight: 700; box-shadow: var(--shadow-lift); z-index: 100; animation: toast-in 0.3s ease; } @keyframes toast-in { from { opacity: 0; translate: 0 12px; } } /* ============ Quiz ============ */ .quiz-q { border: 1.5px solid var(--border); border-radius: var(--radius-lg); padding: 1rem 1.3rem 1.1rem; margin-block: 1.1rem; transition: border-color 0.2s ease, background 0.2s ease; } .quiz-q legend { font-weight: 800; padding-inline: 0.45rem; font-size: 1.02rem; } .quiz-solved { border-color: var(--ok); background: var(--ok-soft); } .quiz-choice { display: flex; align-items: center; gap: 0.65rem; padding: 0.5rem 0.7rem; margin-block: 0.3rem; font-weight: 500; cursor: pointer; border: 1.5px solid var(--border); border-radius: 12px; background: var(--surface); transition: border-color 0.12s ease, background 0.12s ease, translate 0.12s ease; } .quiz-choice:hover { border-color: var(--brand); translate: 0 -1px; } .quiz-choice:has(input:checked) { border-color: var(--brand); background: var(--brand-soft); } .quiz-solved .quiz-choice:has(input:checked) { border-color: var(--ok); background: #c9f2e3; } .quiz-choice input { accent-color: var(--brand); inline-size: 1.1rem; block-size: 1.1rem; flex-shrink: 0; } .quiz-feedback { margin: 0.5rem 0 0; font-weight: 700; min-block-size: 1.2rem; } .quiz-solved .quiz-feedback { color: var(--ok-ink); } .cta-card { text-align: center; } /* ============ Difficulty tabs ============ */ .diff-tabs { display: flex; gap: 0.5rem; flex-wrap: wrap; margin-block: 1rem; } .diff-tab { border-radius: 999px; padding: 0.4rem 1.1rem; font-weight: 800; font-size: 0.9rem; text-decoration: none; border: 2px solid var(--border); color: var(--muted); background: var(--surface); transition: translate 0.12s ease, border-color 0.12s ease; } .diff-tab:hover { border-color: var(--brand); color: var(--brand-ink); translate: 0 -1px; } .diff-easy.diff-current { border-color: var(--ok); color: var(--ok-ink); background: var(--ok-soft); } .diff-medium.diff-current { border-color: var(--warn); color: #b45309; background: var(--warn-soft); } .diff-hard.diff-current { border-color: var(--bad); color: #b91c1c; background: var(--bad-soft); } .diff-solved { color: var(--ok); font-weight: 900; } /* ============ Video embed ============ */ .video-wrap { position: relative; aspect-ratio: 16 / 9; margin-block: 1rem; } .video-wrap iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; border-radius: var(--radius-lg); box-shadow: var(--shadow-lift); } /* ============ Code — always LTR, even on the Persian site ============ */ /* unicode-bidi: isolate is what makes this work for INLINE inside RTL sentences — without it, direction has no effect on inline elements and snippets like print() render as ()print. */ pre, code, .code-ltr, .highlight { direction: ltr; unicode-bidi: isolate; text-align: left; /* physical on purpose: code is always LTR */ font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; } code { background: #eef0ff; color: #4338ca; border-radius: 6px; padding: 0.06rem 0.4rem; font-size: 0.9em; } pre code { background: none; padding: 0; color: inherit; } pre { background: #0f172a; color: #e2e8f0; padding: 1rem 1.15rem; border-radius: var(--radius); overflow-x: auto; font-size: 0.9rem; } /* Sample-test tables on exercise pages */ .sample-table pre { margin: 0; padding: 0.5rem 0.75rem; font-size: 0.85rem; background: #f6f7ff; color: var(--ink); border: 1px solid var(--border); } /* ============ Editor card ============ */ .editor-chrome { display: flex; align-items: center; gap: 0.5rem; background: #1e293b; border-radius: var(--radius) var(--radius) 0 0; padding: 0.55rem 0.9rem; direction: ltr; } .editor-dots { display: flex; gap: 0.35rem; } .editor-dots i { inline-size: 0.72rem; block-size: 0.72rem; border-radius: 50%; display: block; } .editor-dots i:nth-child(1) { background: #f87171; } .editor-dots i:nth-child(2) { background: #fbbf24; } .editor-dots i:nth-child(3) { background: #34d399; } .editor-filename { color: #94a3b8; font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: 0.85rem; margin-inline: auto; } .editor-pybadge { color: #cbd5e1; font-size: 0.75rem; font-weight: 700; background: rgba(148, 163, 184, 0.18); border-radius: 999px; padding: 0.1rem 0.6rem; } /* Editor + syntax-highlight overlay. The 
 overlay sits behind a transparent-text textarea; both MUST share
   identical font metrics, padding, and white-space handling or the colors
   drift off the letters. */
.editor-wrap {
  position: relative;
  border-radius: 0 0 var(--radius) var(--radius);
  background: #0f172a;
  overflow: hidden;
}
#code-editor,
.code-highlight {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 16px; /* below 16px iOS zooms the page on focus */
  line-height: 1.5;
  padding: 1rem;
  tab-size: 4;
  white-space: pre;
  overflow-wrap: normal;
  word-break: normal;
  margin: 0;
  border: 0;
}
.code-highlight {
  position: absolute;
  inset: 0;
  overflow: hidden;
  background: #0f172a;
  color: #e2e8f0;
  pointer-events: none;
}
#code-editor {
  position: relative;
  display: block;
  width: 100%;
  max-width: none;
  background: transparent;
  color: transparent;         /* the overlay paints the letters */
  caret-color: #e2e8f0;
  border: 0;
  border-radius: 0 0 var(--radius) var(--radius);
  resize: vertical;
  overflow: auto;
  min-block-size: 16rem;
  box-shadow: none;
}
#code-editor:focus { box-shadow: none; border: 0; outline: none; }
#code-editor::selection { background: rgba(96, 165, 250, 0.35); }

/* Token colors (dark background) */
.tok-kw  { color: #c084fc; font-weight: 600; }  /* keywords: for, if, def… */
.tok-blt { color: #60a5fa; }                    /* builtins: print, input… */
.tok-str { color: #34d399; }                    /* strings */
.tok-num { color: #fbbf24; }                    /* numbers */
.tok-com { color: #7c8aa5; font-style: italic; }/* comments */

/* Autocomplete suggestion strip (phone-keyboard style) */
.suggest-strip {
  display: flex;
  gap: 0.3rem;
  overflow-x: auto;
  padding: 0.3rem 0.45rem;
  background: #1e293b;
  direction: ltr;
}
.suggest-chip {
  flex-shrink: 0;
  border: 1px solid #334155;
  border-radius: 8px;
  background: #0f172a;
  color: #e2e8f0;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.9rem;
  padding: 0.35rem 0.7rem;
  cursor: pointer;
  min-block-size: 2.2rem;
  touch-action: manipulation;
}
.suggest-chip b { color: #60a5fa; }
.suggest-chip:active { background: #334155; }

/* Mobile-friendly editor toolbar */
.editor-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem;
  background: #1e293b;
  padding: 0.45rem;
  position: sticky;
  inset-block-start: 4rem; /* below the sticky site header */
  z-index: 5;
}
.editor-toolbar button {
  min-inline-size: 2.5rem;
  min-block-size: 2.5rem;
  border: 1px solid #334155;
  border-radius: 8px;
  background: #0f172a;
  color: #e2e8f0;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  padding-inline: 0.5rem;
  touch-action: manipulation; /* no double-tap zoom on phones */
}
.editor-toolbar button:active { background: #334155; }
.editor-toolbar button svg {
  inline-size: 1.15rem;
  block-size: 1.15rem;
  display: block;
  margin-inline: auto;
  pointer-events: none; /* clicks land on the button, not the svg */
}
.editor-toolbar button[data-action] { color: #cbd5e1; }
.editor-toolbar .tb-snippet { color: #93c5fd; }
.editor-toolbar .tb-sep {
  inline-size: 1px;
  background: #334155;
  margin-inline: 0.2rem;
  align-self: stretch;
}

.editor-actions {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  flex-wrap: wrap;
  margin-block: 1rem 0.5rem;
}

/* ============ Judge results ============ */
.test-grid { display: flex; gap: 0.55rem; flex-wrap: wrap; margin-block: 1rem; }
.test-badge {
  border-radius: var(--radius);
  padding: 0.5rem 0.9rem;
  font-weight: 700;
  font-size: 0.85rem;
  border: 1.5px solid var(--border);
  background: var(--surface);
  line-height: 1.4;
}
.test-badge small { font-weight: 600; opacity: 0.85; }
.test-pass { border-color: var(--ok); color: var(--ok-ink); background: var(--ok-soft); }
.test-fail { border-color: var(--bad); color: #b91c1c; background: var(--bad-soft); }
.test-pending { color: var(--muted); }

.score-big { font-size: 2.4rem; font-weight: 800; }
.score-good { color: var(--ok); }
.score-mid { color: var(--warn); }
.score-low { color: var(--bad); }

/* ============ Chat panel ============ */
.chat-panel { max-block-size: 30rem; display: flex; flex-direction: column; }
.chat-messages { overflow-y: auto; flex: 1; display: grid; gap: 0.5rem; padding-block: 0.5rem; }
.chat-msg { border-radius: var(--radius); padding: 0.55rem 0.95rem; max-inline-size: 85%; }
.chat-user { background: var(--grad-brand); color: #fff; justify-self: end; }
.chat-assistant { background: var(--bg); border: 1.5px solid var(--border); justify-self: start; }
.chat-details summary {
  cursor: pointer;
  font-weight: 700;
  margin-block: 0.75rem 0.25rem;
  color: var(--brand-ink);
}
.chat-input { display: flex; gap: 0.5rem; margin-block-start: 0.5rem; }
.chat-input input { flex: 1; max-width: none; }

/* ============ Confetti ============ */
.confetti-bit {
  position: fixed;
  z-index: 999;
  pointer-events: none;
  font-size: 1.2rem;
  animation: confetti-fall var(--dur, 1.8s) ease-in forwards;
}
@keyframes confetti-fall {
  0% { transform: translateY(-10px) rotate(0deg); opacity: 1; }
  100% { transform: translateY(90vh) rotate(var(--spin, 540deg)); opacity: 0; }
}

/* ============ Error pages ============ */
.oops {
  text-align: center;
  margin-block-start: 4rem;
}
.oops-emoji { font-size: 5rem; display: block; animation: float 4s ease-in-out infinite; }
.oops h1 { margin-block: 0.5rem 0.25rem; }
.oops p { color: var(--muted); }

/* ============ Footer ============ */
.site-footer {
  margin-block-start: 3rem;
  padding-block: 1.6rem;
  color: var(--muted);
  font-size: 0.9rem;
  border-block-start: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.55);
}
.site-footer .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

/* Plain tables outside markdown (profile, samples) */
table { border-collapse: collapse; width: 100%; }
th, td { border: 1px solid var(--border); padding: 0.55rem 0.8rem; text-align: start; }
th { background: var(--bg); font-weight: 800; }

/* ============ Motion preferences & small screens ============ */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

@media (max-width: 640px) {
  h1 { font-size: 1.45rem; }
  .hero { padding: 1.6rem 1.4rem; }
  .hero h1 { font-size: 1.6rem; }
  .hero-art { font-size: 3.2rem; }
  .hud { padding: 1.1rem 1.2rem; gap: 1rem; }
  .card { padding: 1.1rem 1.15rem; }
  .node-marker { inline-size: 2.7rem; block-size: 2.7rem; }
  .quest-path::before { inset-inline-start: 1.3rem; }
  .editor-toolbar { inset-block-start: 0; }
}