:root {
  --green: #39ff14;
  --green-dark: #007a00; /* green for text on white: 5.5:1 */
  --black: #0a0a0a;
  --white: #fff;
  --grey: #f3f4f2;
  --grey-text: #4a4d49; /* on white: 8.4:1 */
  --line: #dcdedb;
  --radius: 12px;
  --max: 1080px;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; color: var(--black); background: var(--white); line-height: 1.6; font-size: 1.0625rem; }
img, svg { max-width: 100%; height: auto; }
a { color: var(--green-dark); }
a:hover { color: var(--black); }

:focus-visible { outline: 3px solid var(--black); outline-offset: 3px; }
.dark :focus-visible, .site-header :focus-visible, .site-footer :focus-visible { outline-color: var(--green); }

.skip { position: absolute; left: -999px; top: 0; background: var(--green); color: var(--black); padding: .75rem 1rem; z-index: 10; font-weight: 700; }
.skip:focus { left: 0; }

.wrap { width: min(100% - 2rem, var(--max)); margin-inline: auto; }

/* Header */
.site-header { background: var(--black); color: var(--white); }
.site-header .wrap { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: .75rem 1.5rem; padding-block: .9rem; }
.brand img { display: block; height: 40px; width: auto; }
.nav { display: flex; flex-wrap: wrap; align-items: center; gap: .25rem 1.25rem; list-style: none; margin: 0; padding: 0; }
.nav a { color: var(--white); text-decoration: none; padding: .4rem 0; font-weight: 500; border-bottom: 3px solid transparent; }
.nav a:hover { border-color: var(--green); color: var(--white); }
.nav a[aria-current="page"] { border-color: var(--green); }

/* Buttons: black text on fluro green (14:1) */
.btn { display: inline-block; background: var(--green); color: var(--black); font-weight: 700; text-decoration: none; padding: .8rem 1.4rem; border-radius: 999px; border: 2px solid var(--green); font-size: 1rem; cursor: pointer; font-family: inherit; }
.btn:hover { background: var(--white); border-color: var(--white); color: var(--black); }
.btn-outline { background: transparent; color: var(--white); border-color: var(--white); }
.btn-outline:hover { background: var(--white); color: var(--black); }
.light .btn { border-color: var(--black); }
.light .btn:hover { background: var(--black); color: var(--green); border-color: var(--black); }
.nav a.btn { padding: .45rem 1.1rem; color: var(--black); border: 2px solid var(--green); }
.nav a.btn:hover { background: var(--white); border-color: var(--white); color: var(--black); }
.nav a.btn[aria-current="page"] { border-color: var(--white); }

/* Hero */
.hero { background: var(--black); color: var(--white); padding-block: clamp(3rem, 9vw, 6.5rem); border-bottom: 10px solid var(--green); }
.hero h1 { font-size: clamp(2rem, 6vw, 3.4rem); line-height: 1.1; margin: 0 0 1rem; max-width: 18ch; }
.hero h1 em { font-style: normal; color: var(--green); }
.hero p { font-size: 1.2rem; max-width: 40rem; color: #e6e8e4; margin: 0 0 1.75rem; }
.hero .actions { display: flex; flex-wrap: wrap; gap: .75rem; }
.hero.small { padding-block: clamp(2rem, 6vw, 3.5rem); }
.hero.small h1 { max-width: none; font-size: clamp(1.8rem, 5vw, 2.6rem); }
.hero.small p { margin: 0; }

/* Sections */
section { padding-block: clamp(2.5rem, 6vw, 4.5rem); }
section.alt { background: var(--grey); }
section.dark { background: var(--black); color: var(--white); }
section.dark a { color: var(--green); }
h2 { font-size: clamp(1.5rem, 4vw, 2.1rem); line-height: 1.2; margin: 0 0 1rem; }
h3 { font-size: 1.2rem; margin: 0 0 .4rem; }
.lead { font-size: 1.15rem; color: var(--grey-text); max-width: 42rem; }
.dark .lead { color: #e6e8e4; }

.grid { display: grid; gap: 1rem; grid-template-columns: 1fr; margin-top: 1.75rem; }
@media (min-width: 640px) { .grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 960px) { .grid.three { grid-template-columns: repeat(3, 1fr); } }
.card { background: var(--white); border: 1px solid var(--line); border-top: 6px solid var(--green); border-radius: var(--radius); padding: 1.25rem 1.25rem 1.4rem; }
.card p { margin: 0; color: var(--grey-text); }
.card ul { margin: .5rem 0 0; padding-left: 1.2rem; color: var(--grey-text); }

.checks { list-style: none; padding: 0; margin: 1.25rem 0 0; display: grid; gap: .6rem; }
.checks li { padding-left: 1.9rem; position: relative; }
.checks li::before { content: ""; position: absolute; left: 0; top: .35em; width: 1.1rem; height: 1.1rem; border-radius: 50%; background: var(--green); box-shadow: inset 0 0 0 4px var(--black); outline: 2px solid var(--black); outline-offset: -2px; }
.dark .checks li::before { outline-color: var(--green); }

.cta { text-align: center; }
.cta h2 { margin-bottom: .5rem; }
.cta p { margin: 0 auto 1.5rem; max-width: 36rem; }

/* Form */
.contact-grid { display: grid; gap: 2rem; grid-template-columns: 1fr; }
@media (min-width: 800px) { .contact-grid { grid-template-columns: 3fr 2fr; } }
form label { display: block; font-weight: 600; margin: 1rem 0 .3rem; }
form .opt { font-weight: 400; color: var(--grey-text); }
input[type=text], input[type=email], input[type=tel], textarea { width: 100%; font: inherit; padding: .7rem .8rem; border: 2px solid var(--black); border-radius: 8px; background: var(--white); color: var(--black); }
textarea { min-height: 9rem; resize: vertical; }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.status { margin-top: 1rem; padding: .8rem 1rem; border-radius: 8px; display: none; font-weight: 600; }
.status.show { display: block; }
.status.ok { background: #e7ffe0; border: 2px solid var(--green-dark); color: #0b3d00; }
.status.err { background: #fff0f0; border: 2px solid #b00020; color: #7a0014; }
.panel { background: var(--grey); border-radius: var(--radius); padding: 1.25rem; align-self: start; }
.panel h2 { font-size: 1.3rem; }
.panel p { margin: .4rem 0; }

/* Footer */
.site-footer { background: var(--black); color: #dfe2dc; padding-block: 2.5rem; border-top: 10px solid var(--green); font-size: .98rem; }
.site-footer a { color: var(--green); }
.site-footer .cols { display: grid; gap: 1.5rem; grid-template-columns: 1fr; }
@media (min-width: 700px) { .site-footer .cols { grid-template-columns: 2fr 1fr 1fr; } }
.site-footer h2 { font-size: 1rem; color: var(--white); margin-bottom: .5rem; }
.site-footer ul { list-style: none; margin: 0; padding: 0; }
.site-footer li { margin: .25rem 0; }
.site-footer img { height: 34px; width: auto; margin-bottom: .75rem; }
.copy { margin-top: 1.5rem; padding-top: 1rem; border-top: 1px solid #333; font-size: .9rem; color: #bfc3bc; }

@media (prefers-reduced-motion: no-preference) { .btn { transition: background .15s, color .15s; } }