/* Styles for teaching.html. Shared styles (menu, icons, progress line) are in assets/css/site.css. */
:root{--theme:#0f6e56;--theme-dk:#0a5240;--wash:#eef6f3;--mut:#828282;--divider:#e8e8e8}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:#fff;color:#000;font-family:"Roboto",-apple-system,"Segoe UI",Helvetica,Arial,sans-serif;font-weight:300;font-size:16px;line-height:1.55}
a{color:var(--theme);text-decoration:none}
a:hover{text-decoration:underline}
a:focus-visible{outline:2px solid var(--theme);outline-offset:2px}
.navbar{position:fixed;top:0;left:0;right:0;z-index:20;background:rgba(255,255,255,.97);border-bottom:1px solid var(--divider);padding-top:env(safe-area-inset-top,0px)}
.nav-inner{max-width:930px;margin:0 auto;padding:0 15px;height:56px;display:flex;align-items:center;justify-content:space-between}
.brand{font-size:1.25rem;font-weight:300;color:#000}
.brand b{font-weight:700}
.brand:hover{text-decoration:none;color:#000}
.nav-links{display:flex;gap:2px}
.nav-links a{color:#000;padding:8px 10px;font-size:15.5px;font-weight:400}
.nav-links a:hover{color:var(--theme);text-decoration:none}
.nav-links a.active{color:var(--theme);font-weight:500}
.container{max-width:930px;margin:0 auto;padding:calc(88px + env(safe-area-inset-top,0px)) 15px 40px}
.post-title{font-size:2.6rem;font-weight:300;margin:0 0 .3rem;line-height:1.2}
.post-description{color:var(--mut);font-size:1.02rem;margin:0;max-width:44em}
h2.sec{font-size:1.5rem;font-weight:300;margin:2.4rem 0 1rem;padding-top:.9rem;border-top:1px solid var(--divider)}
h2.sec .yrs{font-size:.95rem;color:#a6a6a6;font-weight:400;margin-left:6px}
.courses{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
.course{--lc:#0f6e56;--lw:#eef6f3;border:1px solid var(--divider);border-left:3px solid var(--lc);border-radius:4px;padding:14px 16px 13px;box-shadow:0 1px 3px rgba(0,0,0,.04)}
.row1{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin-bottom:5px}
.course.grad{--lc:#4b44a8;--lw:#eeedfb}
.course.ug{--lc:#0f6e56;--lw:#eef6f3}
.course.fy{--lc:#a3640e;--lw:#faeeda}
.code{font-size:.8rem;font-weight:500;color:var(--lc);letter-spacing:.02em}
.lvl{font-size:.7rem;font-weight:500;background:var(--lw);color:var(--lc);border-radius:3px;padding:1px 8px;margin-left:auto}
.course h3{font-size:1.05rem;font-weight:500;line-height:1.35;margin:0 0 4px}
.note{font-size:.8rem;color:var(--mut);margin:0 0 4px}
.eds{display:flex;flex-wrap:wrap;gap:4px 12px;margin:10px 0 0;font-size:.82rem}
.eds a,.eds span{color:#6b6b6b}
.eds a{border-bottom:1px solid #ddd}
.eds a:hover{color:var(--lc);border-color:var(--lc);text-decoration:none}
.eds .cur{color:var(--lc);font-weight:500;background:var(--lw);border:0;border-radius:3px;padding:0 7px}
.eds a.cur:hover{text-decoration:underline}
.legend{display:flex;flex-wrap:wrap;gap:16px;margin:16px 0 0;font-size:.8rem;color:var(--mut)}
.legend span{display:inline-flex;align-items:center;gap:6px}
.legend i{width:12px;height:12px;border-radius:2px;display:inline-block}
ul.plain{list-style:none;margin:0;padding:0}
ul.plain li{display:grid;grid-template-columns:110px minmax(0,1fr);gap:16px;padding:8px 0;border-bottom:1px solid #f4f4f4;font-size:.95rem}
ul.plain li:last-child{border-bottom:0}
ul.plain .y{font-weight:500;color:#111}
.edu-line{margin:0 0 .6rem;font-size:.95rem;color:#444}
html{scroll-padding-top:calc(72px + env(safe-area-inset-top,0px))}
ul.plain em{display:block;font-style:normal;color:var(--mut);font-size:.85rem}
footer{border-top:1px solid var(--divider);color:var(--mut);font-size:.8rem;text-align:center;padding:16px 15px calc(16px + env(safe-area-inset-bottom,0px));margin-top:30px}
@media(max-width:760px){
  .nav-links a:not(.active){display:none}
  .post-title{font-size:2rem}
  .courses{grid-template-columns:1fr}
  ul.plain li{grid-template-columns:1fr;gap:2px}
}

/* ===== Dark mode: dark-theme versions of the colors above ===== */
html[data-theme="dark"] {color-scheme:dark}
html[data-theme="dark"] {--theme:#62dabc;--theme-dk:#62dabc;--wash:#1e392f;--mut:#888f96;--divider:#35383b}
html[data-theme="dark"] body {background:#121314;color:#e4e6e7}
html[data-theme="dark"] .navbar {background:rgba(18,19,20,0.97)}
html[data-theme="dark"] .brand {color:#e4e6e7}
html[data-theme="dark"] .brand:hover {color:#e4e6e7}
html[data-theme="dark"] .nav-links a {color:#e4e6e7}
html[data-theme="dark"] h2.sec .yrs {color:#888f96}
html[data-theme="dark"] .course {--lc:#62dabc;--lw:#1e392f;box-shadow:0 1px 3px rgba(0,0,0,.04)}
html[data-theme="dark"] .course.grad {--lc:#7b75c7;--lw:#1e1c3b}
html[data-theme="dark"] .course.ug {--lc:#62dabc;--lw:#1e392f}
html[data-theme="dark"] .course.fy {--lc:#daa762;--lw:#3b2f1c}
html[data-theme="dark"] .eds a, html[data-theme="dark"] .eds span {color:#868d94}
html[data-theme="dark"] .eds a {border-bottom:1px solid #2c2f32}
html[data-theme="dark"] ul.plain li {border-bottom:1px solid #1b1c1e}
html[data-theme="dark"] ul.plain .y {color:#d5d8da}
html[data-theme="dark"] .edu-line {color:#a9aeb2}