@layer properties{@supports (((-webkit-hyphens:none)) and (not (margin-trim:inline))) or ((-moz-orient:inline) and (not (color:rgb(from red r g b)))){*,:before,:after,::backdrop{--tw-outline-style:solid;--tw-blur:initial;--tw-brightness:initial;--tw-contrast:initial;--tw-grayscale:initial;--tw-hue-rotate:initial;--tw-invert:initial;--tw-opacity:initial;--tw-saturate:initial;--tw-sepia:initial;--tw-drop-shadow:initial;--tw-drop-shadow-color:initial;--tw-drop-shadow-alpha:100%;--tw-drop-shadow-size:initial}}}@layer theme{:root,:host{--font-sans:ui-sans-serif, system-ui, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji";--font-mono:ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;--spacing:.25rem;--default-font-family:var(--font-sans);--default-mono-font-family:var(--font-mono)}}@layer base{*,:after,:before,::backdrop{box-sizing:border-box;border:0 solid;margin:0;padding:0}::file-selector-button{box-sizing:border-box;border:0 solid;margin:0;padding:0}html,:host{-webkit-text-size-adjust:100%;tab-size:4;line-height:1.5;font-family:var(--default-font-family,ui-sans-serif, system-ui, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji");font-feature-settings:var(--default-font-feature-settings,normal);font-variation-settings:var(--default-font-variation-settings,normal);-webkit-tap-highlight-color:transparent}hr{height:0;color:inherit;border-top-width:1px}abbr:where([title]){-webkit-text-decoration:underline dotted;text-decoration:underline dotted}h1,h2,h3,h4,h5,h6{font-size:inherit;font-weight:inherit}a{color:inherit;-webkit-text-decoration:inherit;text-decoration:inherit}b,strong{font-weight:bolder}code,kbd,samp,pre{font-family:var(--default-mono-font-family,ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace);font-feature-settings:var(--default-mono-font-feature-settings,normal);font-variation-settings:var(--default-mono-font-variation-settings,normal);font-size:1em}small{font-size:80%}sub,sup{vertical-align:baseline;font-size:75%;line-height:0;position:relative}sub{bottom:-.25em}sup{top:-.5em}table{text-indent:0;border-color:inherit;border-collapse:collapse}:-moz-focusring{outline:auto}progress{vertical-align:baseline}summary{display:list-item}ol,ul,menu{list-style:none}img,svg,video,canvas,audio,iframe,embed,object{vertical-align:middle;display:block}img,video{max-width:100%;height:auto}button,input,select,optgroup,textarea{font:inherit;font-feature-settings:inherit;font-variation-settings:inherit;letter-spacing:inherit;color:inherit;opacity:1;background-color:#0000;border-radius:0}::file-selector-button{font:inherit;font-feature-settings:inherit;font-variation-settings:inherit;letter-spacing:inherit;color:inherit;opacity:1;background-color:#0000;border-radius:0}:where(select:is([multiple],[size])) optgroup{font-weight:bolder}:where(select:is([multiple],[size])) optgroup option{padding-inline-start:20px}::file-selector-button{margin-inline-end:4px}::placeholder{opacity:1}@supports (not ((-webkit-appearance:-apple-pay-button))) or (contain-intrinsic-size:1px){::placeholder{color:currentColor}@supports (color:color-mix(in lab,red,red)){::placeholder{color:color-mix(in oklab,currentcolor 50%,transparent)}}}textarea{resize:vertical}::-webkit-search-decoration{-webkit-appearance:none}::-webkit-date-and-time-value{min-height:1lh;text-align:inherit}::-webkit-datetime-edit{display:inline-flex}::-webkit-datetime-edit-fields-wrapper{padding:0}::-webkit-datetime-edit{padding-block:0}::-webkit-datetime-edit-year-field{padding-block:0}::-webkit-datetime-edit-month-field{padding-block:0}::-webkit-datetime-edit-day-field{padding-block:0}::-webkit-datetime-edit-hour-field{padding-block:0}::-webkit-datetime-edit-minute-field{padding-block:0}::-webkit-datetime-edit-second-field{padding-block:0}::-webkit-datetime-edit-millisecond-field{padding-block:0}::-webkit-datetime-edit-meridiem-field{padding-block:0}::-webkit-calendar-picker-indicator{line-height:1}:-moz-ui-invalid{box-shadow:none}button,input:where([type=button],[type=reset],[type=submit]){appearance:button}::file-selector-button{appearance:button}::-webkit-inner-spin-button{height:auto}::-webkit-outer-spin-button{height:auto}[hidden]:where(:not([hidden=until-found])){display:none!important}}@layer components;@layer utilities{.visible{visibility:visible}.sticky{position:sticky}.end{inset-inline-end:var(--spacing)}.container{width:100%}@media(min-width:40rem){.container{max-width:40rem}}@media(min-width:48rem){.container{max-width:48rem}}@media(min-width:64rem){.container{max-width:64rem}}@media(min-width:80rem){.container{max-width:80rem}}@media(min-width:96rem){.container{max-width:96rem}}.hidden{display:none}.scroll-smooth{scroll-behavior:smooth}.outline{outline-style:var(--tw-outline-style);outline-width:1px}.filter{filter:var(--tw-blur,) var(--tw-brightness,) var(--tw-contrast,) var(--tw-grayscale,) var(--tw-hue-rotate,) var(--tw-invert,) var(--tw-saturate,) var(--tw-sepia,) var(--tw-drop-shadow,)}}:root{color-scheme:light;--bg:#f8fafc;--surface:#fff;--surface-soft:#f1f5f9;--surface-raised:#fff;--text:#111827;--muted:#64748b;--muted-strong:#475569;--border:#e2e8f0;--accent:#2563eb;--accent-soft:#dbeafe;--code-bg:#f1f5f9;--shadow:0 20px 45px #0f172a14;--font-sans:ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, "Helvetica Neue", Arial, sans-serif;--font-mono:ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace}:root[data-theme=dark]{color-scheme:dark;--bg:#0f172a;--surface:#111827;--surface-soft:#1e293b;--surface-raised:#162033;--text:#e5e7eb;--muted:#94a3b8;--muted-strong:#cbd5e1;--border:#334155;--accent:#93c5fd;--accent-soft:#3b82f629;--code-bg:#020617;--shadow:0 20px 45px #00000052}*{box-sizing:border-box}html{scroll-padding-top:96px}body{background:var(--bg);min-height:100vh;color:var(--text);font-family:var(--font-sans);text-rendering:optimizelegibility;margin:0;font-size:18px;line-height:1.75}a{color:inherit;text-underline-offset:4px}a:hover{color:var(--accent)}.site-shell,.container{width:min(100% - 40px,760px);margin-inline:auto}.wide-container{width:min(100% - 40px,1040px);margin-inline:auto}.skip-link{z-index:50;background:var(--text);color:var(--bg);border-radius:999px;padding:8px 12px;text-decoration:none;position:absolute;top:-60px;left:16px}.skip-link:focus{top:12px}.site-header{z-index:20;border-bottom:1px solid var(--border);background:var(--bg);position:sticky;top:0}@supports (color:color-mix(in lab,red,red)){.site-header{background:color-mix(in srgb,var(--bg) 88%,transparent)}}.site-header{-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px)}.header-inner{justify-content:space-between;align-items:center;gap:18px;min-height:68px;display:flex}.brand{color:var(--text);letter-spacing:-.02em;align-items:center;gap:10px;font-weight:800;text-decoration:none;display:inline-flex}.brand-mark{border:1px solid var(--border);background:var(--surface);width:30px;height:30px;color:var(--accent);border-radius:10px;place-items:center;display:grid}.top-nav{color:var(--muted-strong);align-items:center;gap:18px;font-size:.9rem;display:flex}.top-nav a{text-decoration:none}.theme-toggle{color:var(--muted-strong);font:inherit;cursor:pointer;background:0 0;border:0;padding:0}.theme-toggle:hover{color:var(--accent)}.hero{padding:92px 0 56px}.eyebrow,.badge,.lesson-meta{color:var(--muted);flex-wrap:wrap;gap:10px;font-size:.9rem;display:flex}.badge span,.lesson-meta span,.tag{border:1px solid var(--border);background:var(--surface);border-radius:999px;align-items:center;padding:3px 10px;font-size:.82rem;display:inline-flex}.title{letter-spacing:-.075em;max-width:760px;margin:18px 0 16px;font-size:clamp(2.35rem,7vw,4.8rem);font-weight:900;line-height:.98}.lead{max-width:690px;color:var(--muted-strong);margin:0;font-size:clamp(1.08rem,2.4vw,1.35rem);line-height:1.7}.quote{border-left:3px solid var(--accent);color:var(--muted-strong);margin:34px 0 0;padding-left:20px;font-size:1.18rem;line-height:1.7}.section{padding:46px 0}.section h2,.add-guide h2{letter-spacing:-.05em;margin:0 0 12px;font-size:clamp(1.75rem,4vw,2.65rem);line-height:1.12}.section h3{letter-spacing:-.02em;margin:0 0 8px;font-size:1.08rem}.section p{margin:0 0 18px}.muted{color:var(--muted)}.lesson-list{gap:34px;display:grid}.lesson-card{border-bottom:1px solid var(--border);padding-bottom:34px}.lesson-card h2{letter-spacing:-.05em;margin:8px 0;font-size:clamp(1.65rem,4vw,2.35rem);line-height:1.15}.lesson-card h2 a{text-decoration:none}.lesson-card p{max-width:690px}.flow{flex-wrap:wrap;gap:8px;margin:24px 0 0;display:flex}.flow span{border:1px solid var(--border);background:var(--surface);color:var(--muted-strong);border-radius:999px;padding:5px 11px;font-size:.86rem}.card,.practice,.example,.add-guide{border:1px solid var(--border);background:var(--surface);box-shadow:var(--shadow);border-radius:18px}.card{padding:24px}.content-grid{grid-template-columns:minmax(0,1fr);gap:18px;margin-top:22px;display:grid}.checklist{margin:0;padding-left:24px}.checklist li{margin:8px 0}.example{background:var(--accent-soft);box-shadow:none;margin-top:18px;padding:18px 20px}.practice{background:var(--surface-raised);margin-top:18px;padding:22px}.practice h3{font-size:1.22rem}.lesson-nav{border-bottom:1px solid var(--border);background:var(--surface-soft)}.lesson-nav-inner{color:var(--muted-strong);white-space:nowrap;gap:18px;padding:12px 0;font-size:.88rem;display:flex;overflow-x:auto}.lesson-nav a{text-decoration:none}label{color:var(--text);margin:16px 0 7px;font-size:.95rem;font-weight:750;display:block}.glossary-term{cursor:help;border-bottom:1px dashed var(--accent);align-items:center;gap:8px;display:inline-flex;position:relative}@supports (color:color-mix(in lab,red,red)){.glossary-term{border-bottom:1px dashed color-mix(in srgb,var(--accent) 50%,var(--border))}}.glossary-term:focus-visible{outline:3px solid var(--accent)}@supports (color:color-mix(in lab,red,red)){.glossary-term:focus-visible{outline:3px solid color-mix(in srgb,var(--accent) 25%,transparent)}}.glossary-term:focus-visible{outline-offset:5px;border-radius:6px}.glossary-badge{border:1px solid var(--accent);place-items:center;width:18px;height:18px;display:inline-grid}@supports (color:color-mix(in lab,red,red)){.glossary-badge{border:1px solid color-mix(in srgb,var(--accent) 38%,var(--border))}}.glossary-badge{background:var(--accent-soft);color:var(--accent);border-radius:999px;font-size:.75rem;font-weight:800;line-height:1}.glossary-popup{z-index:30;border:1px solid var(--border);background:var(--surface-raised);width:min(340px,100vw - 56px);box-shadow:var(--shadow);color:var(--text);opacity:0;visibility:hidden;pointer-events:none;border-radius:16px;gap:8px;padding:14px;transition:opacity .18s,transform .18s,visibility .18s;display:grid;position:absolute;top:calc(100% + 12px);left:0;transform:translateY(8px)}.glossary-term:hover .glossary-popup,.glossary-term:focus-visible .glossary-popup,.glossary-term:focus-within .glossary-popup{opacity:1;visibility:visible;pointer-events:auto;transform:translateY(0)}.glossary-popup-title,.glossary-popup-subheading{line-height:1.45;display:block}.glossary-popup-title{letter-spacing:-.02em;font-size:.95rem;font-weight:850}.glossary-popup-subheading{color:var(--text);margin-top:2px;font-size:.88rem;font-weight:800}.glossary-popup-text{color:var(--muted-strong);font-size:.86rem;line-height:1.55;display:block}.glossary-popup-list{color:var(--muted-strong);margin:0;padding-left:18px;font-size:.86rem;line-height:1.55}.glossary-popup-list li+li{margin-top:4px}input,textarea,select{border:1px solid var(--border);background:var(--bg);width:100%;color:var(--text);font:inherit;border-radius:12px;padding:12px 14px;font-size:1rem}textarea{resize:vertical;min-height:112px}input:focus,textarea:focus{outline:3px solid var(--accent)}@supports (color:color-mix(in lab,red,red)){input:focus,textarea:focus{outline:3px solid color-mix(in srgb,var(--accent) 28%,transparent)}}input:focus,textarea:focus{border-color:var(--accent)}.btn,.link-btn{border:1px solid var(--text);background:var(--text);color:var(--bg);font:inherit;cursor:pointer;border-radius:999px;justify-content:center;align-items:center;gap:8px;padding:10px 16px;font-weight:800;line-height:1.2;text-decoration:none;display:inline-flex}.btn:hover,.link-btn:hover{color:var(--bg);transform:translateY(-1px)}.outline{color:var(--text);background:0 0;margin-left:8px}.outline:hover{color:var(--accent)}.saved{color:#16a34a;margin-left:10px;font-size:.86rem}pre,code{font-family:var(--font-mono);font-size:.9rem}code{border:1px solid var(--border);background:var(--code-bg);border-radius:6px;padding:2px 6px}pre{border:1px solid var(--border);background:var(--code-bg);white-space:pre-wrap;border-radius:14px;margin:18px 0 0;padding:18px;overflow:auto}.add-guide{margin-top:54px;padding:26px}.footer{border-top:1px solid var(--border);color:var(--muted);padding:54px 0;font-size:.95rem}@media(min-width:900px){.content-grid{grid-template-columns:1.05fr .95fr}}@media(max-width:640px){body{font-size:16px}.site-shell,.container,.wide-container{width:min(100% - 28px,760px)}.header-inner{flex-direction:column;align-items:flex-start;padding:14px 0}.top-nav{width:100%;overflow-x:auto}.hero{padding:58px 0 36px}.card,.practice,.add-guide{padding:18px}.glossary-popup{left:50%;transform:translate(-50%,8px)}.glossary-term:hover .glossary-popup,.glossary-term:focus-visible .glossary-popup,.glossary-term:focus-within .glossary-popup{transform:translate(-50%)}}@property --tw-outline-style{syntax:"*";inherits:false;initial-value:solid}@property --tw-blur{syntax:"*";inherits:false}@property --tw-brightness{syntax:"*";inherits:false}@property --tw-contrast{syntax:"*";inherits:false}@property --tw-grayscale{syntax:"*";inherits:false}@property --tw-hue-rotate{syntax:"*";inherits:false}@property --tw-invert{syntax:"*";inherits:false}@property --tw-opacity{syntax:"*";inherits:false}@property --tw-saturate{syntax:"*";inherits:false}@property --tw-sepia{syntax:"*";inherits:false}@property --tw-drop-shadow{syntax:"*";inherits:false}@property --tw-drop-shadow-color{syntax:"*";inherits:false}@property --tw-drop-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-drop-shadow-size{syntax:"*";inherits:false}
