:root {
  --red: #c8102e;
  --red-dark: #a00c24;
  --ink: #1c2430;
  --muted: #5d6b7c;
  --line: #d9e2ec;
  --bg: #e6f1fb;
  --card: #fff;
  --ok: #1f8a4c;
  --radius: 18px;
  color-scheme: light;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  font: 16px/1.45 system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  color: var(--ink);
  background: linear-gradient(180deg, #cfe6fa 0%, var(--bg) 320px, #f4f8fc 100%) fixed;
  min-height: 100vh;
}

.page {
  max-width: 640px;
  margin: 0 auto;
  padding: 24px 16px calc(40px + env(safe-area-inset-bottom));
}

.hero { text-align: center; margin-bottom: 20px; }
.logo { width: min(300px, 80%); height: auto; display: block; margin: 0 auto 8px; }
.hero h1 { font-size: 28px; margin: 4px 0 6px; letter-spacing: -0.01em; }
.lead { margin: 0 auto; color: var(--muted); max-width: 30em; }

.card {
  background: var(--card);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: 0 1px 2px rgba(16, 40, 70, .06), 0 8px 28px rgba(16, 40, 70, .08);
}

/* ——— файлы ——— */
.drop {
  border: 2px dashed #a9c4de;
  border-radius: 14px;
  padding: 6px;
  margin-bottom: 18px;
  transition: border-color .15s, background .15s;
}
.drop.over { border-color: var(--red); background: #fff5f6; }
.drop.has-files .drop-btn { padding: 14px 12px; }
.drop.has-files .drop-btn svg { width: 28px; height: 28px; }
.drop-title .t-more, .drop.has-files .drop-title .t-first, .drop.has-files .drop-hint { display: none; }
.drop.has-files .drop-title .t-more { display: inline; }

.drop-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  width: 100%;
  padding: 26px 12px;
  border: 0;
  border-radius: 10px;
  background: transparent;
  color: var(--ink);
  font: inherit;
  cursor: pointer;
}
.drop-btn:hover, .drop-btn:focus-visible { background: #f2f7fc; outline: none; }
.drop-btn svg { color: var(--red); }
.drop-title { font-weight: 700; font-size: 18px; }
.drop-hint { color: var(--muted); font-size: 14px; text-align: center; }

.files { list-style: none; margin: 0; padding: 0; }
.file {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px;
  border-top: 1px solid var(--line);
}
.pv {
  position: relative;
  flex: none;
  width: 64px;
  height: 64px;
  border-radius: 10px;
  overflow: hidden;
  background: #e9eef4;
}
.pv img, .pv video { width: 100%; height: 100%; object-fit: cover; display: block; }
.pv.noimg img, .pv.noimg video { visibility: hidden; }
.pv .play {
  position: absolute; inset: 0; display: grid; place-items: center;
  color: #fff; font-size: 20px; text-shadow: 0 1px 4px rgba(0,0,0,.6); pointer-events: none;
}
.meta { flex: 1; min-width: 0; }
.name { font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.bar { height: 6px; border-radius: 3px; background: #e6ecf2; overflow: hidden; margin: 6px 0 4px; }
.bar i { display: block; height: 100%; width: 0; background: var(--red); transition: width .2s; }
.file[data-state="done"] .bar i { background: var(--ok); }
.file[data-state="waiting"] .bar i { background: #e0a100; }
.file[data-state="error"] .bar i { background: #8a96a3; }
.st { font-size: 13px; color: var(--muted); }
.file[data-state="error"] .st { color: var(--red); }
.file[data-state="done"] .st { color: var(--ok); }
.rm {
  flex: none; width: 36px; height: 36px; border: 0; border-radius: 50%;
  background: #f0f3f6; color: var(--muted); font-size: 22px; line-height: 1; cursor: pointer;
}
.rm:hover { background: #ffe3e7; color: var(--red); }
.retry {
  flex: none; border: 1px solid var(--line); background: #fff; border-radius: 8px;
  padding: 6px 10px; font: inherit; font-size: 14px; cursor: pointer;
}

/* ——— поля ——— */
.field { display: block; margin-bottom: 14px; }
.field > span { display: block; font-weight: 600; margin-bottom: 6px; }
.field small { font-weight: 400; color: var(--muted); }
.field input, .field textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 12px;
  font: inherit;
  font-size: 17px; /* iOS не увеличивает страницу при фокусе */
  color: var(--ink);
  background: #fbfdff;
}
.field textarea { resize: vertical; min-height: 96px; }
.field input:focus, .field textarea:focus { outline: none; border-color: #6aa3d6; box-shadow: 0 0 0 3px rgba(106, 163, 214, .25); background: #fff; }

.hp { position: absolute; left: -10000px; width: 1px; height: 1px; overflow: hidden; }

.error {
  margin: 0 0 12px;
  padding: 10px 14px;
  border-radius: 10px;
  background: #fff0f2;
  color: var(--red-dark);
}

.submit {
  display: block;
  width: 100%;
  padding: 16px;
  border: 0;
  border-radius: 14px;
  background: var(--red);
  color: #fff;
  font: inherit;
  font-size: 18px;
  font-weight: 700;
  letter-spacing: .02em;
  cursor: pointer;
  box-shadow: 0 4px 14px rgba(200, 16, 46, .3);
}
.submit:hover { background: var(--red-dark); }
.submit:disabled { cursor: progress; opacity: .85; }
.submit.busy { background: var(--red-dark); }

.done { text-align: center; padding: 32px 20px; }
.done-icon {
  width: 64px; height: 64px; margin: 0 auto 12px; border-radius: 50%;
  display: grid; place-items: center; background: #e3f5ea; color: var(--ok); font-size: 34px; font-weight: 700;
}
.done h2 { margin: 0 0 6px; }
.done p { color: var(--muted); margin: 0 0 20px; }

@media (max-width: 420px) {
  .hero h1 { font-size: 24px; }
  .card { padding: 16px; }
}

.pair { display: grid; gap: 0 12px; }
@media (min-width: 520px) {
  .pair { grid-template-columns: 1fr 1fr; }
}

/* ——— компьютер: всё на одном экране ——— */
@media (min-width: 900px) {
  .page { max-width: 1080px; padding: 20px 24px 24px; }

  .hero {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 28px;
    text-align: left;
    margin-bottom: 18px;
  }
  .logo { width: 210px; margin: 0; }
  .hero h1 { font-size: 28px; margin: 0 0 4px; }
  .lead { margin: 0; max-width: none; }

  #form.card {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 24px;
    padding: 24px;
  }
  .drop {
    margin: 0;
    display: flex;
    flex-direction: column;
  }
  .drop-btn { flex: 1; justify-content: center; padding: 24px 16px; }
  .drop.has-files .drop-btn { flex: none; }
  .drop-btn svg { width: 56px; height: 56px; }
  .drop .files { max-height: 330px; overflow-y: auto; }

  .field { margin-bottom: 12px; }
  .field input, .field textarea { padding: 10px 14px; font-size: 16px; }
  .field textarea { min-height: 84px; height: 108px; }
  .submit { padding: 14px; }
  .done { max-width: 560px; margin: 0 auto; }
}

/* невысокие экраны ноутбуков */
@media (min-width: 900px) and (max-height: 720px) {
  .page { padding-top: 12px; }
  .hero { margin-bottom: 12px; }
  .logo { width: 170px; }
  .hero h1 { font-size: 24px; }
  .field textarea { height: 84px; }
}

/* высокие экраны: крупнее и по центру по вертикали */
@media (min-width: 900px) {
  .page { min-height: 100vh; display: flex; flex-direction: column; justify-content: center; }
  .page > * { width: 100%; }
}
@media (min-width: 900px) and (min-height: 820px) {
  .page { max-width: 1140px; }
  .logo { width: 260px; }
  .hero { margin-bottom: 26px; }
  .hero h1 { font-size: 34px; }
  .lead { font-size: 17px; }
  #form.card { padding: 32px; gap: 32px; }
  .field { margin-bottom: 16px; }
  .field > span { font-size: 17px; }
  .field input, .field textarea { padding: 13px 16px; font-size: 17px; }
  .field textarea { height: 160px; }
  .drop-btn svg { width: 72px; height: 72px; }
  .drop-title { font-size: 21px; }
  .drop-hint { font-size: 15px; }
  .drop .files { max-height: 420px; }
  .submit { padding: 17px; font-size: 19px; }
}

/* длинный список файлов прокручивается внутри зоны загрузки, а не страница */
@media (min-width: 900px) {
  .drop .files { max-height: max(150px, min(420px, calc(100vh - 400px))); }
}