/* Courses pages for www.manojdevkota.com.np
   Uses the same design tokens, fonts and masthead as the main site (style.css),
   so the Courses pages look like part of the homepage. */
:root {
  --paper: #f8f8f6; --paper-2: #ffffff; --tint: #f1f2ef;
  --ink: #131d28; --ink-2: #3f4d5a; --ink-3: #6c7a87;
  --rule: #e3e4de; --rule-2: #cfd2ca;
  --teal: #0e8f9c; --cyan: #1179b0; --indigo: #3b5bd0; --violet: #6c5cd6; --rose: #c2467e; --amber: #c07d1e;
  --accent: var(--teal); --accent-2: var(--violet);
  --grad: linear-gradient(100deg, var(--teal), var(--indigo) 55%, var(--violet));
  --shadow-1: 0 1px 2px rgba(19,29,40,.05), 0 3px 10px rgba(19,29,40,.05);
  --shadow-2: 0 2px 6px rgba(19,29,40,.06), 0 14px 34px rgba(19,29,40,.09);
  --shadow-3: 0 10px 24px rgba(19,29,40,.10), 0 30px 70px rgba(19,29,40,.13);
  --serif: "Spectral", Georgia, "Times New Roman", serif;
  --sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
  --shell: 1180px; --ease: cubic-bezier(.4, 0, .2, 1); --t: .25s var(--ease);
  --night: #080f18;
}
[data-theme="dark"] {
  --paper: #080f18; --paper-2: #0e1824; --tint: #0b131d;
  --ink: #e8edf3; --ink-2: #aebac7; --ink-3: #768595;
  --rule: #1a2735; --rule-2: #2b3d4f;
  --teal: #35c9c9; --cyan: #4bb8e8; --indigo: #7b93ff; --violet: #a78bfa; --rose: #f472b6; --amber: #eab355;
  --shadow-1: 0 1px 3px rgba(0,0,0,.45); --shadow-2: 0 4px 16px rgba(0,0,0,.5); --shadow-3: 0 18px 54px rgba(0,0,0,.6);
  color-scheme: dark;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --paper: #080f18; --paper-2: #0e1824; --tint: #0b131d;
    --ink: #e8edf3; --ink-2: #aebac7; --ink-3: #768595;
    --rule: #1a2735; --rule-2: #2b3d4f;
    --teal: #35c9c9; --cyan: #4bb8e8; --indigo: #7b93ff; --violet: #a78bfa; --rose: #f472b6; --amber: #eab355;
    --shadow-1: 0 1px 3px rgba(0,0,0,.45); --shadow-2: 0 4px 16px rgba(0,0,0,.5); --shadow-3: 0 18px 54px rgba(0,0,0,.6);
    color-scheme: dark;
  }
}

/* ---------- base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--paper); color: var(--ink-2); font-family: var(--sans); font-size: 16.5px; line-height: 1.68; overflow-x: hidden; -webkit-font-smoothing: antialiased; }
img { max-width: 100%; height: auto; display: block; }
a { color: var(--accent); text-decoration: none; transition: color var(--t); }
a:hover { color: var(--ink); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }
h1, h2, h3 { font-family: var(--serif); font-weight: 600; color: var(--ink); line-height: 1.24; margin: 0 0 .45em; letter-spacing: -.006em; text-wrap: balance; }
p { margin: 0 0 1em; }
.shell { width: min(100% - 3rem, var(--shell)); margin-inline: auto; }
.skip-link { position: absolute; left: -9999px; top: .5rem; z-index: 200; background: var(--paper-2); color: var(--ink); padding: .5rem .8rem; border-radius: 8px; border: 1px solid var(--rule-2); }
.skip-link:focus { left: .75rem; }
.kicker { font-family: var(--mono); font-size: .71rem; letter-spacing: .13em; text-transform: uppercase; color: var(--ink-3); margin: 0 0 .7rem; }
.grad-text { background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }

/* ---------- masthead (same look as the homepage) ---------- */
.masthead { position: sticky; top: 0; z-index: 100; background: color-mix(in srgb, var(--paper) 86%, transparent); -webkit-backdrop-filter: saturate(180%) blur(14px); backdrop-filter: saturate(180%) blur(14px); border-bottom: 1px solid transparent; transition: border-color var(--t); }
.masthead.stuck { border-bottom-color: var(--rule); }
.masthead-inner { display: flex; align-items: center; justify-content: space-between; gap: 1.2rem; height: 66px; }
.wordmark { display: flex; align-items: center; gap: .6rem; color: var(--ink); flex-shrink: 0; }
.wordmark-mark { width: 30px; height: 30px; border-radius: 9px; background: var(--grad); color: #fff; display: grid; place-items: center; font-family: var(--serif); font-size: .95rem; font-weight: 700; }
.wordmark-text { font-family: var(--mono); font-size: .78rem; font-weight: 500; letter-spacing: .15em; text-transform: uppercase; transition: color var(--t); }
.wordmark:hover .wordmark-text { color: var(--accent); }
.nav ul { display: flex; align-items: center; gap: 1.65rem; margin: 0; padding: 0; list-style: none; }
.nav a, .nav-drop-btn { position: relative; display: block; padding: .35rem 0; font-family: var(--mono); font-size: .73rem; letter-spacing: .12em; text-transform: uppercase; color: var(--ink-3); white-space: nowrap; }
.nav a::after { content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 2px; border-radius: 2px; background: var(--grad); transform: scaleX(0); transform-origin: left; transition: transform var(--t); }
.nav a:hover, .nav a.active { color: var(--ink); }
.nav a:hover::after, .nav a.active::after { transform: scaleX(1); }
.nav-drop { position: relative; }
.nav-drop-btn { display: flex; align-items: center; gap: .4rem; margin: 0; background: none; border: 0; cursor: pointer; transition: color var(--t); }
.nav-drop-btn svg { width: .75em; height: .75em; transition: transform .25s var(--ease); }
.nav-drop:hover .nav-drop-btn, .nav-drop:focus-within .nav-drop-btn { color: var(--ink); }
.nav-drop:hover .nav-drop-btn svg, .nav-drop:focus-within .nav-drop-btn svg { transform: rotate(180deg); }
.nav .nav-sub { position: absolute; top: calc(100% + .65rem); right: -.9rem; z-index: 120; display: block; min-width: 18rem; margin: 0; padding: .45rem; list-style: none; background: var(--paper); border: 1px solid var(--rule); border-radius: 12px; box-shadow: var(--shadow-2); opacity: 0; visibility: hidden; transform: translateY(6px); transition: opacity .2s var(--ease), transform .2s var(--ease), visibility 0s linear .2s; }
.nav .nav-sub::before { content: ""; position: absolute; left: 0; right: 0; top: -.75rem; height: .75rem; }
.nav-drop:hover .nav-sub, .nav-drop:focus-within .nav-sub, .nav-drop.open .nav-sub { opacity: 1; visibility: visible; transform: none; transition-delay: 0s; }
.nav .nav-sub a { display: block; padding: .6rem .75rem; border-radius: 8px; font-family: var(--sans); text-transform: none; letter-spacing: 0; color: var(--ink-2); white-space: normal; }
.nav .nav-sub a::after { display: none; }
.nav .nav-sub a:hover, .nav .nav-sub a:focus-visible { background: var(--tint); color: var(--ink); }
.nav-sub-title { display: block; font-size: .92rem; font-weight: 600; color: var(--ink); }
.nav-sub-desc { display: block; font-size: .78rem; line-height: 1.4; color: var(--ink-3); }
.nav-drop-left .nav-sub { left: -.9rem; right: auto; min-width: 12.5rem; }
.nav .nav-sub-plain a { padding-block: .5rem; }
.tools { display: flex; align-items: center; gap: .35rem; }
.tool { width: 34px; height: 34px; display: grid; place-items: center; border-radius: 8px; border: 1px solid transparent; background: none; color: var(--ink-3); cursor: pointer; transition: background var(--t), border-color var(--t), color var(--t); }
.tool:hover { border-color: var(--rule); background: var(--paper-2); color: var(--ink); }
.tool svg { width: 16px; height: 16px; }
.tool .i-sun { display: none; }
[data-dark="1"] .tool .i-sun { display: block; }
[data-dark="1"] .tool .i-moon { display: none; }
.burger { display: none; width: 38px; height: 38px; border-radius: 9px; border: 1px solid var(--rule); background: var(--paper-2); cursor: pointer; padding: 0; align-content: center; }
.burger span { display: block; width: 15px; height: 1.6px; margin: 3px auto; background: var(--ink); border-radius: 2px; transition: transform var(--t), opacity var(--t); }
.burger[aria-expanded="true"] span:nth-child(1) { transform: translateY(4.6px) rotate(45deg); }
.burger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.burger[aria-expanded="true"] span:nth-child(3) { transform: translateY(-4.6px) rotate(-45deg); }
@media (max-width: 880px) {
  .burger { display: grid; }
  .nav { position: absolute; left: 0; right: 0; top: 66px; max-height: 0; overflow: hidden; visibility: hidden; background: var(--paper); border-bottom: 1px solid var(--rule); transition: max-height .35s var(--ease), visibility 0s linear .35s; }
  .nav.open { max-height: 820px; visibility: visible; box-shadow: var(--shadow-2); transition: max-height .35s var(--ease), visibility 0s; }
  .nav ul { flex-direction: column; align-items: stretch; gap: 0; width: min(100% - 3rem, var(--shell)); margin: 0 auto; padding: .4rem 0 1rem; }
  .nav a { padding: .72rem 0; border-bottom: 1px solid var(--rule); font-size: .76rem; }
  .nav a::after { display: none; }
  .nav a.active { color: var(--accent); }
  .nav-drop-btn { width: 100%; padding: .72rem 0; font-size: .76rem; border-bottom: 1px solid var(--rule); color: var(--ink); cursor: default; }
  .nav-drop-btn svg { display: none; }
  .nav .nav-sub { position: static; min-width: 0; padding: .2rem 0 .3rem 1rem; border: 0; border-radius: 0; background: none; box-shadow: none; opacity: 1; visibility: visible; transform: none; }
  .nav .nav-sub::before { display: none; }
  .nav .nav-sub a { padding: .6rem 0; border-bottom: 1px solid var(--rule); border-radius: 0; }
}
@media (max-width: 600px) { .shell { width: calc(100% - 2.2rem); } .nav ul { width: calc(100% - 2.2rem); } body { font-size: 16px; } }

/* ---------- buttons ---------- */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: .5rem; padding: .6rem 1.05rem; border-radius: 9px; font-family: var(--mono); font-size: .76rem; letter-spacing: .04em; border: 1px solid transparent; cursor: pointer; text-align: center; transition: transform var(--t), box-shadow var(--t), color var(--t), border-color var(--t), background var(--t); }
.btn svg { width: 14px; height: 14px; }
.btn-solid { background: var(--grad); color: #fff; }
.btn-solid:hover { color: #fff; transform: translateY(-2px); box-shadow: var(--shadow-2); }
.btn-line { background: var(--paper-2); color: var(--ink-2); border-color: var(--rule-2); }
.btn-line:hover { color: var(--accent); border-color: var(--accent); transform: translateY(-2px); }
.btn-lg { padding: .78rem 1.25rem; font-size: .8rem; }
@media (max-width: 600px) { .btn { padding: .55rem .85rem; font-size: .72rem; } .btn-lg { padding: .7rem 1rem; font-size: .76rem; } }
.actions { display: flex; flex-wrap: wrap; gap: .6rem; }

/* ---------- page head ---------- */
.page-head { padding: clamp(2.6rem, 6vw, 4.6rem) 0 clamp(1.6rem, 3.5vw, 2.4rem); position: relative; }
.page-head h1 { font-size: clamp(2.2rem, 5vw, 3.4rem); letter-spacing: -.028em; margin-bottom: .3em; }
.tagline { font-family: var(--serif); font-style: italic; font-size: clamp(1.02rem, 1.9vw, 1.18rem); line-height: 1.6; max-width: 56ch; color: var(--ink-2); margin: 0; }
.crumbs { font-family: var(--mono); font-size: .72rem; letter-spacing: .1em; text-transform: uppercase; color: var(--ink-3); display: flex; flex-wrap: wrap; gap: .5rem; margin-bottom: 1rem; }
.crumbs a { color: var(--ink-3); }
.crumbs a:hover { color: var(--accent); }

/* ---------- sections ---------- */
.section { padding: clamp(1.6rem, 4vw, 2.6rem) 0; }
.sec-head { display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: .4rem 1rem; margin-bottom: 1.1rem; }
.sec-head h2 { font-size: clamp(1.45rem, 2.6vw, 1.85rem); margin: 0; }
.sec-head p { margin: 0; color: var(--ink-3); font-size: .95rem; }

/* ---------- continue (progress) ---------- */
.continue { display: grid; grid-template-columns: minmax(0, 1fr) auto; align-items: center; gap: 1rem 1.6rem; padding: 1.15rem 1.3rem; border: 1px solid var(--rule); border-radius: 14px; background: var(--paper-2); box-shadow: var(--shadow-1); }
.continue[hidden] { display: none; }
.continue h2 { font-size: 1.12rem; margin: 0 0 .2rem; }
.continue p { margin: 0; font-size: .92rem; color: var(--ink-3); }
.bar { height: 6px; border-radius: 6px; background: var(--tint); border: 1px solid var(--rule); overflow: hidden; margin-top: .7rem; max-width: 520px; }
.bar i { display: block; height: 100%; width: 0; background: var(--grad); border-radius: 6px; transition: width .6s var(--ease); }
@media (max-width: 640px) { .continue { grid-template-columns: minmax(0, 1fr); } }

/* ---------- course cards ---------- */
.course { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr); border: 1px solid var(--rule); border-radius: 18px; background: var(--paper-2); overflow: hidden; box-shadow: var(--shadow-1); transition: box-shadow var(--t), transform var(--t); }
.course:hover { box-shadow: var(--shadow-3); }
.course-media { position: relative; background: #0b0e25; display: flex; flex-direction: column; color: #aebac7; }
.course-media img { width: 100%; height: auto; }
.course-media .cap { margin-top: auto; display: flex; flex-wrap: wrap; justify-content: space-between; gap: .35rem 1rem; padding: .85rem 1.15rem 1rem; font-family: var(--mono); font-size: .68rem; letter-spacing: .1em; text-transform: uppercase; color: #aebac7; border-top: 1px solid rgba(255,255,255,.08); }
.course-media .cap b { color: #e8edf3; font-weight: 500; }
.course-media:hover .cap b { color: #7be3c9; }
.course-media .badge { position: absolute; left: 14px; top: 14px; }
.course-body { padding: clamp(1.3rem, 3vw, 2rem); display: flex; flex-direction: column; gap: .9rem; min-width: 0; }
.course-body h3 { font-size: clamp(1.35rem, 2.4vw, 1.7rem); margin: 0; }
.course-body h3 a { color: var(--ink); }
.course-body h3 a:hover { color: var(--accent); }
.course-body > p { margin: 0; }
.tags { display: flex; flex-wrap: wrap; gap: .4rem; }
.tag, .badge { display: inline-flex; align-items: center; gap: .35rem; font-family: var(--mono); font-size: .66rem; letter-spacing: .1em; text-transform: uppercase; padding: .28rem .55rem; border-radius: 999px; border: 1px solid var(--rule-2); color: var(--ink-3); background: var(--paper-2); }
.tag.hot { color: var(--accent); border-color: color-mix(in srgb, var(--accent) 45%, var(--rule-2)); background: color-mix(in srgb, var(--accent) 8%, var(--paper-2)); }
.badge { background: rgba(8,15,24,.72); color: #e8edf3; border-color: rgba(255,255,255,.18); -webkit-backdrop-filter: blur(6px); backdrop-filter: blur(6px); }
.badge.free { color: #7be3c9; border-color: rgba(123,227,201,.45); }
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(118px, 1fr)); gap: .5rem; margin: .1rem 0; }
.stat { border-left: 2px solid var(--rule-2); padding: .15rem 0 .15rem .7rem; }
.stat b { display: block; font-family: var(--serif); font-size: 1.45rem; line-height: 1.15; color: var(--ink); font-weight: 600; }
.stat span { display: block; font-size: .78rem; line-height: 1.35; color: var(--ink-3); }
.stat:nth-child(1) { border-color: var(--teal); } .stat:nth-child(2) { border-color: var(--indigo); } .stat:nth-child(3) { border-color: var(--violet); } .stat:nth-child(4) { border-color: var(--rose); }
.parts { display: flex; flex-wrap: wrap; gap: .35rem; margin: 0; padding: 0; list-style: none; }
.parts li { font-size: .78rem; padding: .22rem .6rem; border-radius: 7px; background: var(--tint); color: var(--ink-2); border: 1px solid var(--rule); }
.mine { font-size: .85rem; color: var(--ink-3); }
.mine[hidden] { display: none; }
.mine .bar { margin-top: .35rem; }
@media (max-width: 900px) { .course { grid-template-columns: minmax(0, 1fr); } }

.grid-2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 330px), 1fr)); gap: 1rem; }
.grid-3 { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1rem; }
@media (max-width: 900px) { .grid-3 { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 580px) { .grid-3 { grid-template-columns: minmax(0, 1fr); } }
.icard { background: var(--paper-2); border: 1px solid var(--rule); border-radius: 14px; padding: 1.35rem 1.25rem; transition: box-shadow var(--t), transform var(--t), border-color var(--t); min-width: 0; }
.icard:hover { box-shadow: var(--shadow-2); }
.icard h3 { font-size: 1.08rem; margin: 0 0 .3rem; }
.icard p { margin: 0; font-size: .93rem; }
a.icard { display: grid; grid-template-columns: 54px minmax(0, 1fr); gap: .3rem 1rem; align-items: start; color: var(--ink-2); }
a.icard:hover { transform: translateY(-2px); border-color: var(--rule-2); color: var(--ink-2); }
a.icard .go { grid-column: 2; font-family: var(--mono); font-size: .72rem; letter-spacing: .08em; text-transform: uppercase; color: var(--accent); margin-top: .5rem; }
.ico { width: 54px; height: 54px; border-radius: 12px; display: grid; place-items: center; background: var(--night); }
.ico svg { width: 38px; height: 38px; }
.feat .ico { width: 44px; height: 44px; margin-bottom: .8rem; background: color-mix(in srgb, var(--accent) 10%, var(--paper-2)); border: 1px solid color-mix(in srgb, var(--accent) 25%, var(--rule)); }
.feat .ico svg { width: 22px; height: 22px; color: var(--accent); }
.feat:nth-child(6n+2) .ico { background: color-mix(in srgb, var(--indigo) 10%, var(--paper-2)); border-color: color-mix(in srgb, var(--indigo) 25%, var(--rule)); }
.feat:nth-child(6n+2) .ico svg { color: var(--indigo); }
.feat:nth-child(6n+3) .ico { background: color-mix(in srgb, var(--violet) 10%, var(--paper-2)); border-color: color-mix(in srgb, var(--violet) 25%, var(--rule)); }
.feat:nth-child(6n+3) .ico svg { color: var(--violet); }
.feat:nth-child(6n+4) .ico { background: color-mix(in srgb, var(--rose) 10%, var(--paper-2)); border-color: color-mix(in srgb, var(--rose) 25%, var(--rule)); }
.feat:nth-child(6n+4) .ico svg { color: var(--rose); }
.feat:nth-child(6n+5) .ico { background: color-mix(in srgb, var(--amber) 10%, var(--paper-2)); border-color: color-mix(in srgb, var(--amber) 25%, var(--rule)); }
.feat:nth-child(6n+5) .ico svg { color: var(--amber); }

/* steps */
.steps { counter-reset: s; display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 250px), 1fr)); gap: 1rem; margin: 0; padding: 0; list-style: none; }
.steps li { position: relative; padding: 1.2rem 1.2rem 1.2rem 3.4rem; border: 1px solid var(--rule); border-radius: 14px; background: var(--paper-2); }
.steps li::before { counter-increment: s; content: counter(s); position: absolute; left: 1.1rem; top: 1.15rem; width: 1.65rem; height: 1.65rem; border-radius: 50%; display: grid; place-items: center; font-family: var(--mono); font-size: .78rem; color: #fff; background: var(--grad); }
.steps b { display: block; color: var(--ink); font-family: var(--serif); font-size: 1.05rem; font-weight: 600; margin-bottom: .15rem; }
.steps span { font-size: .92rem; }

/* call to action */
.cta { border-radius: 20px; padding: clamp(1.8rem, 5vw, 3rem); text-align: center; background: radial-gradient(120% 140% at 0% 0%, color-mix(in srgb, var(--teal) 14%, transparent), transparent 60%), radial-gradient(120% 140% at 100% 100%, color-mix(in srgb, var(--violet) 16%, transparent), transparent 60%), var(--paper-2); border: 1px solid var(--rule); }
.cta h2 { font-size: clamp(1.45rem, 3vw, 2rem); }
.cta p { max-width: 58ch; margin: 0 auto 1.3rem; }
.cta .actions { justify-content: center; }
.cta-kicker { font-family: var(--mono); font-size: .7rem; letter-spacing: .18em; text-transform: uppercase; color: var(--ink-3); margin-bottom: .6rem; }
.price { font-family: var(--serif); font-size: clamp(1.8rem, 4vw, 2.4rem); color: var(--ink); font-weight: 600; margin: 0 0 .2rem; }
.price[hidden] { display: none; }

/* course page hero */
.hero2 { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, .95fr); gap: clamp(1.6rem, 4vw, 3rem); align-items: center; padding: clamp(1.6rem, 4.5vw, 3.2rem) 0 clamp(1.4rem, 3vw, 2.2rem); }
.hero2 h1 { font-size: clamp(2.05rem, 4.6vw, 3.15rem); letter-spacing: -.026em; margin-bottom: .35em; }
.hero2 .tagline { margin-bottom: 1.3rem; }
.hero2 .stats { margin-bottom: 1.4rem; }
.shots { position: relative; padding-bottom: 2.4rem; }
.shots .wide { border-radius: 16px; overflow: hidden; border: 1px solid var(--rule-2); box-shadow: var(--shadow-3); background: var(--night); }
.shots .phone { position: absolute; right: -6px; bottom: 0; width: 31%; border-radius: 22px; overflow: hidden; border: 5px solid #121a26; box-shadow: var(--shadow-3); background: var(--night); }
.shots .wide img { width: 100%; }
.shots .phone img { width: 100%; aspect-ratio: 390 / 640; object-fit: cover; object-position: top center; }
@media (max-width: 900px) { .hero2 { grid-template-columns: minmax(0, 1fr); } .shots { max-width: 640px; } }

/* gallery */
.gallery { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 300px), 1fr)); gap: 1rem; }
.gallery figure { margin: 0; border: 1px solid var(--rule); border-radius: 14px; overflow: hidden; background: var(--paper-2); }
.gallery img { width: 100%; aspect-ratio: 714 / 440; object-fit: cover; background: var(--night); }
.gallery figcaption { padding: .7rem .9rem; font-size: .88rem; color: var(--ink-2); }
.gallery figcaption b { font-family: var(--mono); font-size: .72rem; color: var(--accent); margin-right: .35rem; letter-spacing: .04em; }

/* syllabus */
.syll { display: grid; gap: .7rem; }
.syll details { border: 1px solid var(--rule); border-radius: 14px; background: var(--paper-2); overflow: hidden; }
.syll summary { list-style: none; cursor: pointer; display: grid; grid-template-columns: auto minmax(0, 1fr) auto; gap: .9rem; align-items: center; padding: 1rem 1.2rem; }
.syll summary::-webkit-details-marker { display: none; }
.syll summary .pn { font-family: var(--mono); font-size: .7rem; letter-spacing: .12em; text-transform: uppercase; color: #fff; background: var(--pc, var(--teal)); border-radius: 7px; padding: .25rem .5rem; }
.syll summary h3 { margin: 0; font-size: 1.12rem; }
.syll summary small { display: block; font-family: var(--sans); font-size: .8rem; color: var(--ink-3); font-weight: 400; }
.syll summary .chev { width: 18px; height: 18px; color: var(--ink-3); transition: transform var(--t); }
.syll details[open] summary .chev { transform: rotate(180deg); }
.units { padding: 0 1.2rem 1.1rem; display: grid; gap: .9rem; }
.unit h4 { margin: 0 0 .35rem; font-family: var(--sans); font-size: .95rem; color: var(--ink); font-weight: 600; }
.unit h4 span { font-family: var(--mono); font-size: .72rem; color: var(--ink-3); font-weight: 500; margin-left: .4rem; }
.unit h4 .free { font-style: normal; font-family: var(--mono); font-size: .64rem; letter-spacing: .1em; text-transform: uppercase; color: var(--accent); border: 1px solid color-mix(in srgb, var(--accent) 45%, var(--rule-2)); background: color-mix(in srgb, var(--accent) 8%, var(--paper-2)); border-radius: 999px; padding: .08rem .45rem; margin-left: .5rem; vertical-align: .1em; }

/* ---------- price and buying ---------- */
.price-row { display: flex; flex-wrap: wrap; align-items: baseline; gap: .25rem .7rem; margin: .1rem 0 0; }
.price-row b { font-family: var(--serif); font-size: 1.65rem; font-weight: 600; color: var(--ink); line-height: 1.1; }
.price-row span { font-size: .88rem; color: var(--ink-3); }
.signin { margin: 0; font-size: .88rem; color: var(--ink-3); }
.hero-note { margin: .95rem 0 0; font-size: .92rem; color: var(--ink-3); }
.hero-note b { color: var(--ink); font-weight: 600; }
.cta.buy { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 250px); gap: clamp(1.4rem, 4.5vw, 3.2rem); align-items: center; text-align: left; }
.cta.buy h2 { margin-bottom: .3rem; }
.cta.buy h2 small { font-family: var(--sans); font-size: .95rem; font-weight: 400; color: var(--ink-3); margin-left: .3rem; letter-spacing: 0; }
.cta.buy p { margin: 0 0 1.2rem; max-width: 62ch; }
.cta.buy .term { color: var(--ink-2); }
.cta.buy ol { list-style: none; counter-reset: step; padding: 0; margin: 0 0 1.5rem; display: grid; gap: .9rem; }
.cta.buy ol li { counter-increment: step; display: grid; grid-template-columns: 2rem minmax(0, 1fr); gap: .8rem; align-items: start; }
.cta.buy ol li::before { content: counter(step); width: 2rem; height: 2rem; border-radius: 50%; display: grid; place-items: center; background: var(--grad); color: #fff; font: 600 .82rem/1 var(--mono); }
.cta.buy ol b { display: block; color: var(--ink); font-weight: 600; }
.cta.buy ol span { display: block; font-size: .93rem; color: var(--ink-2); }
.cta.buy .actions { justify-content: flex-start; margin-bottom: 1rem; }
.cta.buy .signin { margin: 0; }
.qr { margin: 0; justify-self: center; width: 100%; max-width: 250px; background: #fff; border: 1px solid var(--rule); border-radius: 16px; padding: .6rem .6rem .8rem; box-shadow: var(--shadow-2); text-align: center; }
.qr img { width: 100%; border-radius: 10px; }
.qr figcaption { font-size: .8rem; color: #4a4f6a; line-height: 1.45; }
.qr figcaption a { display: block; font-weight: 600; color: #1d7a64; margin-bottom: .1rem; }
.qr figcaption span { display: block; }
@media (max-width: 760px) { .cta.buy { grid-template-columns: minmax(0, 1fr); } .qr { max-width: 230px; } }
.unit ul { margin: 0; padding: 0; list-style: none; display: grid; grid-template-columns: repeat(auto-fill, minmax(min(100%, 300px), 1fr)); gap: .15rem 1.2rem; }
.unit li { font-size: .88rem; color: var(--ink-2); display: grid; grid-template-columns: 2.6rem minmax(0, 1fr); }
.unit li b { font-family: var(--mono); font-size: .76rem; color: var(--ink-3); font-weight: 500; padding-top: .1rem; }
.unit li a { color: var(--ink-2); }
.unit li a:hover { color: var(--accent); }

/* faq */
.faq { display: grid; gap: .6rem; }
.faq details { border: 1px solid var(--rule); border-radius: 12px; background: var(--paper-2); padding: .9rem 1.1rem; }
.faq summary { cursor: pointer; font-weight: 600; color: var(--ink); list-style: none; display: flex; justify-content: space-between; gap: 1rem; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; font-family: var(--mono); color: var(--ink-3); }
.faq details[open] summary::after { content: "−"; }
.faq p { margin: .6rem 0 0; font-size: .95rem; }

.author { display: grid; grid-template-columns: 64px minmax(0, 1fr); gap: 1rem; align-items: center; padding: 1.1rem 1.2rem; border: 1px solid var(--rule); border-radius: 14px; background: var(--paper-2); }
.author .avatar { position: relative; width: 64px; height: 64px; border-radius: 50%; overflow: hidden; display: grid; place-items: center; background: var(--grad); color: #fff; font-family: var(--serif); font-weight: 600; font-size: 1.25rem; letter-spacing: .02em; }
.author .avatar img { position: absolute; inset: 0; width: 64px; height: 64px; object-fit: cover; }
.author b { color: var(--ink); font-family: var(--serif); font-size: 1.08rem; display: block; }
.author span { font-size: .9rem; color: var(--ink-3); }

/* ---------- footer ---------- */
.foot { margin-top: clamp(2rem, 5vw, 3.4rem); padding: 2rem 0; border-top: 1px solid var(--rule); }
.foot-inner { display: flex; flex-wrap: wrap; justify-content: space-between; gap: .6rem 1.4rem; font-family: var(--mono); font-size: .72rem; color: var(--ink-3); }
.foot-inner nav { display: flex; flex-wrap: wrap; gap: .4rem 1.1rem; }
.foot-inner a { color: var(--ink-3); border-bottom: 1px solid var(--rule-2); }
.foot-inner a:hover { color: var(--accent); border-color: var(--accent); }

@media (prefers-reduced-motion: reduce) { *, *::before, *::after { transition: none !important; animation: none !important; } html { scroll-behavior: auto; } }
@media print { .masthead, .tools, .actions, .continue { display: none !important; } body { background: #fff; color: #000; } .course, .icard, .cta { box-shadow: none; } }