:root { --teal: #17525A; --teal2: #5B8C96; --tint: #E6F0F2; --ink: #2C3039; --muted: #64748B; --bg: #FDFDFD; --card: #fff; --line: #E2E8F0; }
* { box-sizing: border-box; }
body { margin: 0; font: 17px/1.6 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif; color: var(--ink); background: var(--bg); }
a { color: var(--teal); }
.wrap { max-width: 1040px; margin: 0 auto; padding: 0 16px; }
header { background: var(--teal); color: #fff; }
header .wrap { display: flex; align-items: center; gap: 12px; padding-top: 14px; padding-bottom: 14px; }
header a { color: #fff; text-decoration: none; font-weight: 700; }
header nav { margin-left: auto; display: flex; gap: 20px; font-size: 15px; }
header nav a { font-weight: 500; opacity: .9; white-space: nowrap; }
header img { width: 32px; height: 32px; border-radius: 6px; }
.hero { padding: 56px 0 32px; }
h1 { font-size: clamp(30px, 5vw, 44px); line-height: 1.15; margin: 0 0 12px; }
h2 { font-size: 26px; margin: 48px 0 12px; }
.lead { font-size: 19px; color: var(--muted); max-width: 680px; margin: 0; }
.btn { display: inline-block; background: var(--teal); color: #fff; padding: 12px 20px; border-radius: 10px; text-decoration: none; font-weight: 600; }
.btn.alt { background: var(--tint); color: var(--teal); }
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(290px, 1fr)); gap: 20px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 14px; overflow: hidden; display: flex; flex-direction: column; text-decoration: none; color: inherit; }
.card img { width: 100%; aspect-ratio: 1; object-fit: cover; display: block; }
.card div { padding: 16px; flex: 1; display: flex; flex-direction: column; gap: 6px; }
.card h3 { margin: 0; font-size: 19px; }
.card p { margin: 0; color: var(--muted); font-size: 15px; flex: 1; }
.card span { font-weight: 600; color: var(--teal); }
.card.wide { grid-column: 1 / -1; flex-direction: row; }
.card.wide img { width: 40%; }
.steps { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 20px; }
.steps div { background: var(--tint); border-radius: 14px; padding: 20px; }
.steps b { display: block; color: var(--teal); }
footer { margin-top: 64px; padding: 24px 0; border-top: 1px solid var(--line); color: var(--muted); font-size: 14px; }
/* calculator */
.calc { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; align-items: start; }
form { background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 20px; display: grid; gap: 14px; }
label { display: grid; gap: 4px; font-weight: 600; font-size: 15px; }
label small { font-weight: 400; color: var(--muted); }
input { font: inherit; padding: 10px 12px; border: 1px solid var(--line); border-radius: 8px; width: 100%; }
input:focus { outline: 2px solid var(--teal2); border-color: transparent; }
.out { background: var(--teal); color: #fff; border-radius: 14px; padding: 24px; display: grid; gap: 16px; }
.out .k { font-size: 14px; opacity: .8; }
.out .v { font-size: 34px; font-weight: 700; line-height: 1.1; }
.out p { margin: 0; }
.out .btn { background: #fff; color: var(--teal); text-align: center; }
svg { width: 100%; height: auto; }
select { font: inherit; padding: 10px 8px; border: 1px solid var(--line); border-radius: 8px; background: #fff; width: 100%; }
.row { display: grid; grid-template-columns: 1fr 90px 112px 36px; gap: 8px; }
.row button { border: 0; background: none; font-size: 22px; color: var(--muted); cursor: pointer; }
form > .btn { border: 0; font: inherit; font-weight: 600; cursor: pointer; justify-self: start; }
.tools { display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: 16px; }
.tools a { display: block; background: var(--tint); border-radius: 14px; padding: 18px; text-decoration: none; color: var(--ink); }
.tools b { display: block; color: var(--teal); font-size: 18px; margin-bottom: 4px; }
@media (max-width: 720px) { .calc { grid-template-columns: 1fr; } .card.wide { flex-direction: column; } .card.wide img { width: 100%; } header nav { gap: 12px; font-size: 14px; } .row { grid-template-columns: 1fr 1fr 28px; gap: 6px; padding-bottom: 8px; border-bottom: 1px solid var(--line); } .row input:first-child { grid-column: 1 / -1; } }