:root {
  --bg-start: #dcccaf;
  --bg-end: #a4c3b7;
  --surface: #ffffff;
  --surface-muted: #f4f8f7;
  --ink: #15212b;
  --ink-muted: #4c5b68;
  --accent: #005f73;
  --accent-strong: #0a9396;
  --warn: #bb3e03;
  --border: #d7e2de;
  --shadow: 0 16px 40px rgba(16, 30, 38, 0.12);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
}

body {
  font-family: "Sora", sans-serif;
  color: var(--ink);
  background: linear-gradient(160deg, var(--bg-start) 0%, var(--bg-end) 55%, #cfe0da 100%);
  line-height: 1.45;
}

.backdrop {
  position: fixed;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(circle at 12% 20%, rgba(186, 122, 0, 0.26), transparent 30%),
    radial-gradient(circle at 82% 14%, rgba(10, 147, 150, 0.3), transparent 28%),
    radial-gradient(circle at 50% 85%, rgba(0, 95, 115, 0.22), transparent 30%);
}

.layout {
  position: relative;
  width: min(1080px, 100% - 32px);
  margin: 24px auto 40px;
  display: grid;
  gap: 18px;
  z-index: 1;
}

.hero,
.card {
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid rgba(255, 255, 255, 0.65);
  border-radius: 22px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(2px);
}

.hero {
  padding: 26px 28px;
  overflow: visible;
  position: relative;
}

.hero-header {
  display: flex;
  justify-content: flex-start;
  align-items: flex-start;
  gap: 20px;
}

.hero::after {
  content: "";
  position: absolute;
  width: 180px;
  height: 180px;
  border-radius: 40px;
  right: -42px;
  top: -56px;
  background: linear-gradient(180deg, rgba(238, 155, 0, 0.5), rgba(10, 147, 150, 0.2));
  transform: rotate(24deg);
}

.eyebrow {
  margin: 0;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--accent);
  font-weight: 700;
}

h1,
h2 {
  margin: 0;
}

.hero h1 {
  margin-top: 8px;
  max-width: 620px;
  font-size: clamp(1.5rem, 3vw, 2.4rem);
}

.hero-text {
  margin-top: 12px;
  max-width: 680px;
  color: var(--ink-muted);
}

.limits {
  margin-top: 18px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.limits span {
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.85rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 6px 10px;
  background: var(--surface);
  white-space: nowrap;
}

.card {
  padding: 22px;
}

.upload-card form {
  margin-top: 14px;
  display: grid;
  gap: 14px;
}

.field {
  display: grid;
  gap: 6px;
}

.label {
  font-size: 0.94rem;
  font-weight: 600;
}

input[type="text"],
input[type="password"] {
  width: 100%;
  padding: 14px 16px;
  border-radius: 14px;
  border: 1px solid #d7e2de;
  background: linear-gradient(180deg, #ffffff 0%, #f8fbfa 100%);
  color: var(--ink);
  font-family: inherit;
  font-size: 0.98rem;
  outline: none;
  transition: border-color 0.18s ease, box-shadow 0.18s ease, transform 0.18s ease;
  box-shadow: inset 0 1px 2px rgba(21, 33, 43, 0.04);
}

input[type="text"]:hover,
input[type="password"]:hover {
  border-color: #bfd4d1;
}

input[type="text"]:focus,
input[type="password"]:focus {
  border-color: var(--accent-strong);
  box-shadow: 0 0 0 4px rgba(10, 147, 150, 0.12);
  transform: translateY(-1px);
}

input[type="text"]::placeholder,
input[type="password"]::placeholder {
  color: #8aa0a0;
}

input[type="file"] {
  width: 100%;
  padding: 10px;
  border-radius: 12px;
  border: 1px dashed #9bb7b8;
  background: var(--surface-muted);
}

small {
  color: #647684;
}

.mode-grid {
  display: grid;
  gap: 10px;
  grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
}

.mode-pill {
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 10px;
  display: grid;
  gap: 3px;
  background: var(--surface);
  cursor: pointer;
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.mode-pill:hover {
  transform: translateY(-2px);
}

.mode-pill input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.mode-pill span {
  font-weight: 600;
}

.mode-pill.mode-one:has(input:checked) {
  background: #ffedd5;
  border-color: #ea580c;
  box-shadow: 0 0 0 2px rgba(234, 88, 12, 0.15);
}
.mode-pill.mode-one:has(input:checked) span {
  color: #ea580c;
}

.mode-pill.mode-seven:has(input:checked) {
  background: #dcfce7;
  border-color: #16a34a;
  box-shadow: 0 0 0 2px rgba(22, 163, 74, 0.15);
}
.mode-pill.mode-seven:has(input:checked) span {
  color: #16a34a;
}

.mode-pill.mode-hundred:has(input:checked) {
  background: #dbeafe;
  border-color: #2563eb;
  box-shadow: 0 0 0 2px rgba(37, 99, 235, 0.15);
}
.mode-pill.mode-hundred:has(input:checked) span {
  color: #2563eb;
}

.mode-pill:has(input:checked) small {
  color: var(--ink-muted);
}

.archive-switch {
  display: flex;
  align-items: center;
  gap: 10px;
  background: var(--surface-muted);
  border-radius: 12px;
  border: 1px solid var(--border);
  padding: 10px 12px;
}

button {
  border: none;
  border-radius: 12px;
  padding: 11px 16px;
  font-family: inherit;
  font-size: 0.95rem;
  cursor: pointer;
  transition: transform 0.18s ease, filter 0.18s ease;
}

button:hover {
  transform: translateY(-1px);
  filter: brightness(0.98);
}

button:disabled {
  opacity: 0.7;
  cursor: wait;
  transform: none;
}

#uploadButton {
  background: linear-gradient(120deg, var(--accent) 0%, var(--accent-strong) 100%);
  color: #fff;
  font-weight: 600;
}

#loginButton {
  background: linear-gradient(120deg, #edf4f3 0%, #e3efed 100%);
  color: var(--ink);
  font-weight: 700;
  border: 1px solid #dbe7e4;
}

#loginButton:hover {
  filter: none;
  background: linear-gradient(120deg, #e7f1ef 0%, #dcebea 100%);
}

.status {
  min-height: 22px;
  margin: 0;
  color: var(--ink-muted);
}

.result {
  margin-top: 16px;
  background: #f3faf8;
  border: 1px solid #c8e4dd;
  border-radius: 14px;
  padding: 14px;
  display: grid;
  gap: 10px;
}

.result a {
  color: #0c4a6e;
  word-break: break-all;
}

.result button {
  justify-self: start;
  background: #dcefe8;
  color: #0f4d49;
}

.hidden {
  display: none;
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.ghost {
  border: 1px solid var(--border);
  background: var(--surface);
}

.empty {
  margin-top: 14px;
  color: var(--ink-muted);
}

.shares-list {
  margin-top: 14px;
  display: grid;
  gap: 10px;
}

.share-item {
  border: 1px solid var(--border);
  background: var(--surface);
  border-radius: 14px;
  padding: 12px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
}

.share-title {
  margin: 0;
  font-size: 0.94rem;
  font-weight: 600;
}

.share-meta {
  margin: 4px 0 0;
  color: var(--ink-muted);
  font-size: 0.82rem;
}

.share-actions {
  display: flex;
  gap: 8px;
}

.copy-link {
  background: #dcefe8;
  color: #0f4d49;
}

.danger {
  background: #fee2d5;
  color: var(--warn);
}

@keyframes riseIn {
  from {
    opacity: 0;
    transform: translateY(14px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.animate-1,
.animate-2,
.animate-3 {
  opacity: 0;
  animation: riseIn 0.6s ease forwards;
}

.animate-2 {
  animation-delay: 0.12s;
}

.animate-3 {
  animation-delay: 0.22s;
}

@media (max-width: 760px) {
  .layout {
    width: min(100% - 20px, 740px);
    margin: 14px auto 28px;
  }

  .hero,
  .card {
    border-radius: 18px;
    padding: 18px;
  }

  .share-item {
    flex-direction: column;
    align-items: stretch;
  }

  .share-actions {
    justify-content: flex-end;
  }
}