@font-face { font-family: Poppins; font-weight: 500; font-display: swap; src: url(/fonts/Poppins-Medium.ttf); }
@font-face { font-family: Poppins; font-weight: 600; font-display: swap; src: url(/fonts/Poppins-SemiBold.ttf); }
@font-face { font-family: Poppins; font-weight: 700; font-display: swap; src: url(/fonts/Poppins-Bold.ttf); }

:root { --ink: #15202b; --muted: #4a5763; --accent: #0b6e4f; --accent-dark: #08573f; --pale: #e9f5f0; --line: #dfe7e3; }
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; font-family: Poppins, system-ui, sans-serif; font-weight: 500; color: var(--ink); background: #fff; line-height: 1.6; }
a { color: var(--accent); }
.wrap { max-width: 760px; margin: 0 auto; padding: 0 22px; }

.top { border-bottom: 2px solid var(--pale); }
.top .wrap { display: flex; justify-content: space-between; align-items: center; height: 64px; }
.brand { font-weight: 600; font-size: 20px; text-decoration: none; color: var(--accent); }
.top .tag { font-size: 14px; color: var(--muted); }

.hero { padding: 56px 0 40px; }
h1 { font-weight: 700; font-size: clamp(32px, 6vw, 46px); line-height: 1.15; margin: 0 0 14px; }
.sub { font-size: 19px; color: var(--muted); margin: 0 0 28px; }
.cta { display: flex; flex-wrap: wrap; gap: 12px; }
.btn { display: inline-block; padding: 14px 22px; border-radius: 10px; font-weight: 600; font-size: 17px; text-decoration: none; border: 2px solid var(--accent); text-align: center; }
.btn.primary { background: var(--accent); color: #fff; }
.btn.primary:hover { background: var(--accent-dark); border-color: var(--accent-dark); }
.btn.secondary { background: #fff; color: var(--accent); }
.btn.secondary:hover { background: var(--pale); }
.fine { font-size: 14px; color: var(--muted); margin-top: 12px; }
@media (max-width: 480px) { .top .tag { display: none; } .cta .btn { width: 100%; } }

section { padding: 34px 0; border-top: 1px solid var(--line); }
h2 { font-weight: 700; font-size: 26px; margin: 0 0 18px; }
.steps { list-style: none; padding: 0; margin: 0; display: grid; gap: 14px; }
.steps li { display: grid; grid-template-columns: 40px 1fr; gap: 12px; align-items: start; }
.steps .n { width: 36px; height: 36px; border-radius: 50%; background: var(--pale); color: var(--accent); font-weight: 700; display: grid; place-items: center; }

.tutor { display: grid; grid-template-columns: 160px 1fr; gap: 24px; align-items: center; }
.avatar { width: 160px; height: 160px; border-radius: 50%; background: var(--accent); color: #fff; font-weight: 700; font-size: 72px; display: grid; place-items: center; object-fit: cover; }
@media (max-width: 560px) { .tutor { grid-template-columns: 1fr; justify-items: start; } }

.shorts { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 14px; }
.shorts iframe { width: 100%; aspect-ratio: 9 / 16; border: 0; border-radius: 12px; }

details { border: 1px solid var(--line); border-radius: 10px; padding: 12px 16px; margin-bottom: 10px; }
summary { font-weight: 600; cursor: pointer; }
details p { margin: 8px 0 0; color: var(--muted); }

footer { border-top: 1px solid var(--line); padding: 28px 0 48px; color: var(--muted); font-size: 15px; }

.thanks { padding: 40px 0 20px; }
#cal-inline { width: 100%; min-height: 720px; overflow: auto; }