/* Email + password form under the Google button on the sign-in page. */
.or { display: flex; align-items: center; gap: .75rem; margin: 1rem 0; color: var(--muted); font-size: .85rem; }
.or::before, .or::after { content: ""; flex: 1; border-top: 1px solid var(--line); }
.email-form label { display: block; font-weight: 600; font-size: .9rem; margin: .6rem 0 .2rem; }
.email-form input { width: 100%; font: inherit; padding: .6rem .75rem; border-radius: 10px; border: 1px solid var(--line); background: var(--card); color: var(--fg); }
.email-form .btn { margin-top: 1rem; }

/* Sign-in page layout (moved from templates/courses/login.html). */
.auth { display: grid; grid-template-columns: 1.15fr 1fr; max-width: 1200px; margin: 1rem auto 0; border-radius: 22px; overflow: hidden;
  background: var(--card); border: 1px solid var(--line); box-shadow: var(--shadow-hover); }
.auth-side { position: relative; padding: 2.75rem 2.5rem; color: #fff; overflow: hidden;
  background: linear-gradient(140deg, var(--hero-1) 0%, var(--hero-2) 60%, var(--hero-3) 100%); }
.auth-side::before { content: ""; position: absolute; width: 320px; height: 320px; right: -110px; bottom: -110px; border-radius: 50%;
  background: radial-gradient(circle, rgba(255,255,255,.2), transparent 70%); }
.eyebrow { display: inline-block; font-size: .78rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase;
  padding: .3rem .7rem; border-radius: 999px; background: rgba(255,255,255,.16); margin-bottom: 1rem; }
.auth-side h1 { margin: 0 0 .75rem; font-size: clamp(1.7rem, 3.2vw, 2.3rem); font-weight: 800; }
.auth-side p { margin: 0 0 1.5rem; opacity: .92; position: relative; }
.features { list-style: none; margin: 0; padding: 0; display: grid; gap: .9rem; position: relative; }
.features li { display: flex; gap: .75rem; align-items: flex-start; }
.features .ico { flex: none; width: 30px; height: 30px; border-radius: 9px; display: grid; place-items: center; background: rgba(255,255,255,.16); }
.features strong { display: block; font-size: .95rem; }
.features span { font-size: .87rem; opacity: .85; }
.auth-form { padding: 2.75rem 2.5rem; display: flex; flex-direction: column; justify-content: center; }
.auth-form h2 { margin: 0 0 .35rem; font-size: 1.5rem; }
.auth-form > p { margin: 0 0 1.75rem; }
.google { background: var(--card); color: var(--fg); border: 1px solid var(--line); box-shadow: var(--shadow); }
.google:hover { border-color: var(--accent); box-shadow: var(--shadow-hover); }
.fine { margin-top: 1.25rem; font-size: .82rem; text-align: center; }

.section { margin: 4rem auto 0; }
.section-head { text-align: center; margin-bottom: 1.75rem; }
.section-head h2 { margin: 0 0 .4rem; font-size: clamp(1.4rem, 2.6vw, 1.85rem); font-weight: 800; }
.section-head p { margin: 0 auto; max-width: 620px; }
.topics { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 1rem; }
.topic { padding: 1.4rem; border-radius: 16px; background: var(--card); border: 1px solid var(--line); box-shadow: var(--shadow);
  transition: transform .18s, box-shadow .18s, border-color .18s; }
.topic:hover { transform: translateY(-3px); box-shadow: var(--shadow-hover); border-color: color-mix(in srgb, var(--accent) 40%, var(--line)); }
.topic .num { width: 40px; height: 40px; border-radius: 12px; display: grid; place-items: center; font-weight: 800;
  background: var(--accent-soft); color: var(--accent); margin-bottom: .9rem; }
.topic h3 { margin: 0 0 .35rem; font-size: 1.05rem; }
.topic p { margin: 0; font-size: .92rem; }

.free-badge { display: inline-block; margin-bottom: .6rem; padding: .25rem .7rem; border-radius: 999px; font-size: .78rem; font-weight: 700;
  letter-spacing: .04em; text-transform: uppercase; background: color-mix(in srgb, #0d9488 14%, transparent); color: #0d9488; }
.free-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: 1rem; }
.free-course { display: flex; flex-direction: column; border-radius: 16px; overflow: hidden; text-decoration: none; color: var(--fg);
  background: var(--card); border: 1px solid var(--line); box-shadow: var(--shadow); transition: transform .18s, box-shadow .18s, border-color .18s; }
.free-course:hover { transform: translateY(-3px); box-shadow: var(--shadow-hover); border-color: color-mix(in srgb, #0d9488 45%, var(--line)); }
.free-cover { height: 70px; display: flex; align-items: flex-end; padding: 0 1.1rem; background: linear-gradient(135deg, #0f766e, #22d3ee); }
.free-initials { width: 44px; height: 44px; margin-bottom: -22px; border-radius: 12px; display: grid; place-items: center; font-weight: 800;
  background: var(--card); color: #0d9488; border: 1px solid var(--line); }
.free-body { display: flex; flex-direction: column; gap: .4rem; padding: 1.8rem 1.1rem 1.1rem; flex: 1; }
.free-body strong { font-size: 1.02rem; }
.free-body .muted { font-size: .88rem; }
.free-cta { margin-top: auto; padding-top: .3rem; font-weight: 600; font-size: .9rem; color: #0d9488; }

.about { display: grid; grid-template-columns: auto 1fr; gap: 1.75rem; align-items: center; padding: 2rem; border-radius: 20px;
  background: var(--card); border: 1px solid var(--line); box-shadow: var(--shadow); }
.about .mark { width: 132px; height: 132px; border-radius: 50%; object-fit: cover; box-shadow: 0 0 0 4px var(--card), 0 12px 36px rgba(56, 189, 248, .4); }
.about h2 { margin: 0 0 .2rem; font-size: 1.4rem; }
.about .role { margin: 0 0 .8rem; color: var(--accent); font-weight: 600; font-size: .92rem; }
.about p { margin: 0 0 .6rem; }
.follow { display: flex; flex-wrap: wrap; gap: .6rem; margin-top: 1.1rem; }
.follow a { display: inline-flex; align-items: center; gap: .5rem; padding: .5rem .9rem; border-radius: 999px; font-weight: 600; font-size: .9rem;
  text-decoration: none; color: var(--fg); background: var(--bg); border: 1px solid var(--line); transition: border-color .15s, color .15s; }
.follow a:hover { border-color: var(--accent); color: var(--accent); }
.follow a.yt { background: #ff0033; border-color: #ff0033; color: #fff; }
.follow a.yt:hover { background: #e0002d; color: #fff; }
.follow svg { width: 16px; height: 16px; }

@media (max-width: 760px) {
  .auth { grid-template-columns: 1fr; margin-top: 0; }
  .auth-side, .auth-form { padding: 2rem 1.5rem; }
  .about { grid-template-columns: 1fr; text-align: center; padding: 1.5rem; }
  .about .mark { margin: 0 auto; }
  .follow { justify-content: center; }
}
@media (max-width: 560px) {
  .auth-side { padding: 1.5rem 1.25rem 1.25rem; }
  .auth-side p { margin-bottom: 0; font-size: .95rem; }
  .features { display: none; }  /* keep the sign-in button near the top of the screen */
  .auth-form { padding: 1.5rem 1.25rem; }
  .section { margin-top: 2.5rem; }
  .section-head { margin-bottom: 1.1rem; }
  /* Free courses: one swipeable row instead of a long stack of cards */
  .free-grid { display: flex; gap: .85rem; overflow-x: auto; scroll-snap-type: x mandatory; padding: 0 .1rem .75rem;
    margin: 0 -1rem; padding-inline: 1rem; scrollbar-width: thin; }
  .free-course { flex: 0 0 78%; scroll-snap-align: start; }
  .topics { grid-template-columns: 1fr; gap: .75rem; }
  .topic { padding: 1.1rem; }
  .about .mark { width: 104px; height: 104px; }
}