:root {
  --bg: #faf7f2;
  --surface: #ffffff;
  --text: #1c1917;
  --muted: #78716c;
  --accent: #ea580c;
  --accent2: #0891b2;
  --border: #e7e5e4;
  --danger: #dc2626;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: "Segoe UI", system-ui, sans-serif; background: var(--bg); color: var(--text); min-height: 100vh; }
.hidden { display: none !important; }
a { color: var(--accent); text-decoration: none; }

.nav {
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 28px; background: var(--surface); box-shadow: 0 1px 3px rgba(0,0,0,0.06);
}
.logo { font-size: 1.3rem; font-weight: 800; cursor: pointer; }
.logo em { color: var(--accent); font-style: normal; }
.nav-links { display: flex; gap: 10px; }

.btn {
  padding: 10px 22px; border-radius: 999px; font-size: 0.95rem; font-weight: 600;
  cursor: pointer; border: none; transition: opacity 0.15s;
}
.btn-primary { background: var(--accent); color: #fff; }
.btn-outline { background: transparent; border: 2px solid var(--text); color: var(--text); }
.btn:hover { opacity: 0.88; }

.hero {
  min-height: 70vh; display: flex; flex-direction: column; align-items: center; justify-content: center;
  text-align: center; padding: 48px 24px;
  background: linear-gradient(160deg, #fff7ed 0%, var(--bg) 50%);
}
.hero h1 { font-size: clamp(2rem, 6vw, 3.2rem); font-weight: 800; line-height: 1.1; margin-bottom: 16px; }
.hero p { color: var(--muted); max-width: 480px; font-size: 1.1rem; margin-bottom: 32px; }

.send-panel { max-width: 560px; margin: -40px auto 48px; padding: 0 24px; position: relative; z-index: 2; }
.card {
  background: var(--surface); border-radius: 20px; padding: 36px;
  box-shadow: 0 8px 40px rgba(0,0,0,0.08);
}
.card h2 { font-size: 1.4rem; margin-bottom: 6px; }
.sub { color: var(--muted); font-size: 0.9rem; margin-bottom: 24px; }

.drop-zone {
  border: 2px dashed var(--border); border-radius: 16px; padding: 40px 20px;
  text-align: center; cursor: pointer; margin-bottom: 20px; transition: border-color 0.15s;
}
.drop-zone:hover { border-color: var(--accent); }
.drop-zone p { color: var(--muted); margin-top: 8px; }

.form-row { display: flex; gap: 12px; margin-bottom: 14px; }
.form-row input {
  flex: 1; padding: 12px 16px; border: 1px solid var(--border); border-radius: 10px; font-size: 0.95rem;
}
.form-row input:focus { outline: none; border-color: var(--accent2); }

.alert { padding: 12px 16px; border-radius: 10px; font-size: 0.9rem; margin-bottom: 16px; }
.alert-error { background: #fef2f2; color: var(--danger); }

.page-narrow { max-width: 420px; margin: 0 auto; padding: 48px 24px; }
.form-group { margin-bottom: 14px; }
.form-group label { display: block; font-size: 0.85rem; margin-bottom: 4px; }
.form-group input {
  width: 100%; padding: 12px; border: 1px solid var(--border); border-radius: 10px; font-size: 0.95rem;
}

.progress-wrap { background: var(--border); border-radius: 99px; height: 8px; margin: 16px 0; overflow: hidden; }
.progress-bar { height: 100%; background: var(--accent); width: 0%; transition: width 0.25s; }

.stats { display: flex; justify-content: center; gap: 48px; padding: 32px; color: var(--muted); font-size: 0.85rem; }
.stats strong { display: block; font-size: 1.5rem; color: var(--text); }

footer { text-align: center; padding: 24px; color: var(--muted); font-size: 0.8rem; }