/* Reset */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

/* Variables */
:root {
  --bg: #0a0a0a;
  --surface: #111;
  --border: #222;
  --text: #e8e8e8;
  --text-dim: #999;
  --accent: #6c5ce7;
  --accent-dim: #5849b8;
  --error: #e74c3c;
  --mono: 'SF Mono', Menlo, Monaco, 'Courier New', monospace;
}

/* Base */
html {
  font-size: 15px;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}

main {
  width: 100%;
  max-width: 480px;
}

/* Header */
header {
  margin-bottom: 2rem;
}

h1 {
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  margin-bottom: 0.25rem;
}

header p {
  color: var(--text-dim);
  font-size: 0.9rem;
}

/* Footer */
footer {
  margin-top: 3rem;
  text-align: center;
  color: var(--text-dim);
  font-size: 0.8rem;
}

footer a {
  color: var(--accent);
  text-decoration: none;
}

/* Form */
form {
  margin-bottom: 1.5rem;
}

.drop-zone {
  border: 2px dashed var(--border);
  padding: 3rem 1.5rem;
  text-align: center;
  cursor: pointer;
  transition: border-color 0.2s;
  margin-bottom: 1rem;
}

.drop-zone:hover {
  border-color: var(--accent-dim);
}

.drop-zone.dragover {
  border-color: var(--accent);
  background: rgba(108, 92, 231, 0.05);
}

.drop-zone-content svg {
  color: var(--text-dim);
  margin-bottom: 0.5rem;
}

.drop-text {
  color: var(--text-dim);
  font-size: 0.9rem;
}

.file-name {
  color: var(--text);
  font-family: var(--mono);
  font-size: 0.85rem;
  margin-top: 0.75rem;
  word-break: break-all;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.form-field {
  margin-bottom: 1rem;
}

label {
  display: block;
  font-size: 0.85rem;
  font-weight: 500;
  margin-bottom: 0.4rem;
  color: var(--text-dim);
}

.optional {
  font-weight: 400;
  color: var(--text-dim);
  opacity: 0.6;
}

input[type="text"],
input[type="password"],
select {
  width: 100%;
  padding: 0.65rem 0.75rem;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text);
  font-size: 0.9rem;
  font-family: inherit;
}

input[type="text"]:focus,
input[type="password"]:focus,
select:focus {
  outline: none;
  border-color: var(--accent);
}

input[readonly] {
  font-family: var(--mono);
  font-size: 0.85rem;
  cursor: text;
}

button {
  width: 100%;
  padding: 0.75rem;
  background: var(--accent);
  border: none;
  color: #fff;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  font-family: inherit;
  transition: background 0.2s;
}

button:hover:not(:disabled) {
  background: var(--accent-dim);
}

button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* Limits notice */
.limits-notice {
  padding: 0.75rem 1rem;
  background: rgba(108, 92, 231, 0.1);
  border: 1px solid var(--accent);
  margin-bottom: 1rem;
  font-size: 0.85rem;
  color: var(--text-dim);
}

/* Result */
.result {
  margin-bottom: 1.5rem;
}

.link-box {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
}

.link-box input {
  flex: 1;
}

.link-box button {
  width: auto;
  padding: 0.65rem 1.25rem;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text);
  font-size: 0.85rem;
}

.link-box button:hover {
  background: var(--border);
}

.result-info {
  color: var(--text-dim);
  font-size: 0.85rem;
}

.result-details {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.5rem 1.5rem;
  margin-top: 1rem;
  padding: 1rem;
  background: var(--surface);
  border: 1px solid var(--border);
  font-size: 0.85rem;
}

.result-details dt {
  color: var(--text-dim);
}

.result-details dd {
  font-family: var(--mono);
  text-align: right;
}

/* File info */
.file-info {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.75rem 1.5rem;
  margin-bottom: 1.5rem;
  padding: 1.5rem;
  background: var(--surface);
  border: 1px solid var(--border);
}

.file-info dt {
  color: var(--text-dim);
  font-size: 0.85rem;
  font-weight: 500;
}

.file-info dd {
  font-family: var(--mono);
  font-size: 0.85rem;
  text-align: right;
  word-break: break-all;
}

/* Error */
.error {
  padding: 0.75rem 1rem;
  background: rgba(231, 76, 60, 0.1);
  border: 1px solid var(--error);
  color: var(--error);
  font-size: 0.85rem;
  margin-bottom: 1rem;
}

.error-page {
  text-align: center;
  padding: 2rem 0;
}

.error-title {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.error-text {
  color: var(--text-dim);
  margin-bottom: 1.5rem;
}

.error-page a {
  color: var(--accent);
  text-decoration: none;
}

/* Mobile */
@media (max-width: 480px) {
  .form-row {
    grid-template-columns: 1fr;
  }

  .file-info {
    grid-template-columns: 1fr;
    gap: 0.5rem;
  }

  .file-info dd {
    text-align: left;
  }
}