.on-landing {
    --blue: #046bd2;
    --blue-dark: #045cb4;
    --navy: #1e3a5f;
    --navy-light: #2d5a87;
    --ink: #1e293b;
    --text: #334155;
    --muted: #5b6573;
    --bg: #f4f7fb;
    --white: #ffffff;
    --border: #d7dee8;
    --orange: #e85d24;
    --whatsapp: #25d366;
    --font: "Roboto", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    --display: "Radley", Georgia, serif;
    --serif: "Roboto Serif", Georgia, serif;
    font-family: var(--font);
    color: var(--text);
    line-height: 1.65;
    background: var(--white);
}
.on-landing * { box-sizing: border-box; }
.on-landing img { max-width: 100%; height: auto; display: block; }
.on-landing a { color: var(--blue); text-decoration: none; }
.on-landing a:hover { color: var(--blue-dark); }

.on-landing .wrap {
    width: min(1120px, calc(100% - 2rem));
    margin: 0 auto;
}

.on-landing .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.85rem 1.25rem;
    border: 0;
    border-radius: 4px;
    font: inherit;
    font-weight: 600;
    cursor: pointer;
    text-decoration: none;
}
.on-landing .btn-primary { background: var(--blue); color: #fff; }
.on-landing .btn-primary:hover { background: var(--blue-dark); color: #fff; }
.on-landing .btn-orange { background: var(--orange); color: #fff; }
.on-landing .btn-orange:hover { background: #d04e18; color: #fff; }
.on-landing .btn-block { width: 100%; }
.on-landing .btn-wa { background: var(--whatsapp); color: #fff; }
.on-landing .btn-wa:hover { color: #fff; filter: brightness(0.95); }

.on-landing .hero {
    background:
        radial-gradient(circle at top right, rgba(4, 107, 210, 0.18), transparent 40%),
        linear-gradient(180deg, #eef4fb 0%, #fff 72%);
    padding: 2.5rem 0 3rem;
}
.on-landing .hero-grid {
    display: grid;
    grid-template-columns: 1.15fr 0.85fr;
    gap: 2rem;
    align-items: start;
}
.on-landing .kicker {
    display: inline-block;
    background: #e8f1fb;
    color: var(--blue-dark);
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    padding: 0.3rem 0.65rem;
    border-radius: 999px;
    margin-bottom: 0.9rem;
}
.on-landing .hero h1 {
    font-family: var(--display);
    font-size: clamp(2rem, 4vw, 3.1rem);
    line-height: 1.15;
    color: var(--ink);
    margin: 0 0 0.9rem;
    font-weight: 600;
}
.on-landing .hero .lead {
    font-family: var(--serif);
    font-size: 1.05rem;
    color: var(--ink);
    max-width: 36rem;
    margin: 0 0 1.25rem;
}
.on-landing .proof {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin: 0 0 1.5rem;
    padding: 0;
    list-style: none;
}
.on-landing .proof li {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 999px;
    padding: 0.35rem 0.8rem;
    font-size: 0.85rem;
    color: var(--navy);
    font-weight: 500;
}

.on-landing .card {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 14px;
    box-shadow: 0 10px 30px rgba(30, 58, 95, 0.08);
}
.on-landing .form-card { padding: 1.35rem 1.35rem 1.5rem; scroll-margin-top: 96px; }
.on-landing .form-card h2 {
    margin: 0 0 0.25rem;
    font-size: 1.25rem;
    color: var(--ink);
}
.on-landing .form-card .sub {
    margin: 0 0 1rem;
    color: var(--muted);
    font-size: 0.9rem;
}
.on-landing label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--ink);
    margin: 0.75rem 0 0.35rem;
}
.on-landing input, .on-landing select {
    width: 100%;
    padding: 0.7rem 0.8rem;
    border: 1px solid var(--border);
    border-radius: 6px;
    font: inherit;
    background: #fff;
}
.on-landing input:focus, .on-landing select:focus {
    outline: 2px solid #c5ddf7;
    border-color: var(--blue);
}
.on-landing .form-note {
    margin: 0.75rem 0 0;
    font-size: 0.78rem;
    color: var(--muted);
    text-align: center;
}

.on-landing .section { padding: 3.2rem 0; }
.on-landing .section-muted { background: var(--bg); }
.on-landing .section h2 {
    font-family: var(--display);
    text-align: center;
    font-size: clamp(1.6rem, 3vw, 2.2rem);
    color: var(--ink);
    margin: 0 0 0.5rem;
}
.on-landing .section-intro {
    text-align: center;
    max-width: 40rem;
    margin: 0 auto 2rem;
    color: var(--muted);
}

.on-landing .teacher {
    display: grid;
    grid-template-columns: 240px 1fr;
    gap: 2rem;
    align-items: center;
    max-width: 860px;
    margin: 0 auto;
    padding: 1.25rem;
}
.on-landing .teacher img {
    width: 100%;
    aspect-ratio: 3 / 4;
    object-fit: cover;
    object-position: top;
    border-radius: 12px;
}
.on-landing .teacher h3 {
    margin: 0 0 0.35rem;
    font-family: var(--serif);
    font-size: 1.6rem;
    color: var(--ink);
}
.on-landing .teacher .role {
    color: var(--blue-dark);
    font-weight: 600;
    margin: 0 0 0.8rem;
}
.on-landing .teacher ul { margin: 0; padding-left: 1.1rem; }
.on-landing .teacher li { margin-bottom: 0.4rem; }

.on-landing .offer-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
}
.on-landing .offer {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 1.2rem 1.15rem;
}
.on-landing .offer h3 {
    margin: 0 0 0.45rem;
    font-size: 1.05rem;
    color: var(--ink);
}
.on-landing .offer p { margin: 0; color: var(--muted); font-size: 0.95rem; }

.on-landing .who {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
    max-width: 900px;
    margin: 0 auto;
}
.on-landing .who article {
    background: #fff;
    border-top: 3px solid var(--blue);
    padding: 1.2rem;
    border-radius: 0 0 10px 10px;
    box-shadow: 0 4px 16px rgba(30, 58, 95, 0.06);
}
.on-landing .who h3 { margin: 0 0 0.4rem; color: var(--ink); font-size: 1.05rem; }
.on-landing .who p { margin: 0; color: var(--muted); }

.on-landing .cta-band {
    background: linear-gradient(135deg, var(--navy), var(--navy-light));
    color: #fff;
    text-align: center;
    padding: 3rem 1rem;
}
.on-landing .cta-band h2 {
    font-family: var(--display);
    color: #fff;
    margin: 0 0 0.6rem;
}
.on-landing .cta-band p { margin: 0 0 1.2rem; opacity: 0.92; }
.on-landing .cta-actions { display: flex; justify-content: center; gap: 0.7rem; flex-wrap: wrap; }

@media (max-width: 860px) {
    .on-landing .hero-grid,
    .on-landing .teacher,
    .on-landing .offer-grid,
    .on-landing .who { grid-template-columns: 1fr; }
    .on-landing .teacher { max-width: 420px; }
}