:root {
  --accent: #81d742;
  --accent-dark: #6bb832;
  --navy: #00043d;
  --ink: #222;
  --muted: #5a5a5a;
  --line: #e2e2e2;
  --paper: #fff;
  --mist: #f4f6f8;
  --warn: #a33;
  --font: "Open Sans", "Segoe UI", sans-serif;
  --max: 40rem;
}

*,
*::before,
*::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font);
  font-size: 1rem;
  font-weight: 500;
  line-height: 1.65;
  color: var(--muted);
  background:
    radial-gradient(120% 80% at 10% -10%, rgba(129, 215, 66, 0.18), transparent 55%),
    radial-gradient(90% 70% at 100% 0%, rgba(0, 4, 61, 0.12), transparent 50%),
    linear-gradient(180deg, #eef2f6 0%, var(--mist) 40%, #e8ecf1 100%);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent-dark); }
a:hover { opacity: 0.85; }

.hero {
  background:
    linear-gradient(160deg, rgba(0, 4, 61, 0.92), rgba(0, 4, 61, 0.75)),
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160' viewBox='0 0 160 160'%3E%3Cg fill='none' stroke='%2381d742' stroke-opacity='0.12'%3E%3Cpath d='M0 80h160M80 0v160'/%3E%3C/g%3E%3C/svg%3E");
  color: #f5f7fa;
  padding: 3.5rem 1.25rem 3rem;
}

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

.brand {
  margin: 0 0 1rem;
  font-size: clamp(1.75rem, 5vw, 2.6rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.15;
}

.brand a {
  color: #fff;
  text-decoration: none;
}

.brand a:hover { color: var(--accent); opacity: 1; }

.hero h1 {
  margin: 0 0 0.5rem;
  font-size: clamp(1.35rem, 3vw, 1.75rem);
  font-weight: 600;
  color: var(--accent);
}

.lede {
  margin: 0;
  max-width: 32rem;
  color: rgba(255, 255, 255, 0.88);
  font-size: 1.05rem;
}

.wrap {
  width: min(100% - 2rem, var(--max));
  margin: -1.75rem auto 3rem;
}

.card {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 1.5rem 1.35rem 1.75rem;
  box-shadow: 0 12px 40px rgba(0, 4, 61, 0.08);
}

.card h2 {
  margin: 0 0 0.35rem;
  color: var(--ink);
  font-size: 1.25rem;
  font-weight: 600;
}

.hint {
  margin: 0 0 1.25rem;
  font-size: 0.9rem;
}

label {
  display: block;
  margin: 0.9rem 0 0.3rem;
  color: var(--ink);
  font-size: 0.9rem;
  font-weight: 600;
}

input[type="text"],
input[type="email"],
textarea,
input[type="file"] {
  width: 100%;
  font: inherit;
  color: var(--ink);
  border: 1px solid var(--line);
  border-radius: 4px;
  background: #fff;
}

input[type="text"],
input[type="email"],
textarea {
  padding: 0.65rem 0.75rem;
}

textarea { resize: vertical; min-height: 5.5rem; }

input[type="file"] {
  padding: 0.55rem 0.35rem;
  background: var(--mist);
}

.btn {
  display: inline-block;
  margin-top: 1.25rem;
  padding: 0.75rem 1.35rem;
  border: 0;
  border-radius: 4px;
  background: var(--accent);
  color: var(--navy);
  font: inherit;
  font-weight: 700;
  cursor: pointer;
}

.btn:hover { background: var(--accent-dark); color: #fff; }
.btn:disabled {
  opacity: 0.55;
  cursor: wait;
}

.status {
  margin: 0 0 1rem;
  padding: 0.85rem 1rem;
  border-radius: 4px;
  font-size: 0.95rem;
}

.status.ok { background: #e8f6dc; color: #2a5010; }
.status.err { background: #f7e4e1; color: var(--warn); }

.file-list {
  list-style: none;
  margin: 0.65rem 0 0;
  padding: 0;
  font-size: 0.88rem;
}

.file-list li {
  padding: 0.35rem 0;
  border-bottom: 1px solid var(--line);
  color: var(--ink);
}

.progress {
  margin: 0.75rem 0 0;
  font-size: 0.88rem;
  color: var(--muted);
}

.foot {
  margin: 1.5rem 0 0;
  font-size: 0.85rem;
  text-align: center;
}

.foot code {
  font-size: 0.8em;
  word-break: break-all;
}

.hp {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
}