@import url('https://fonts.googleapis.com/css?family=Open+Sans&display=swap');

:root {
  --bg: #F0F4F8;
  --sidebar: #2a2a28;
  --border: #000000;
  --accent: #000000;
  --nav: #1f1f1c;
  --text: #000000;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  min-height: 100vh;
  background-color: var(--bg);
  font-family: 'Georgia', serif;
}

.layout {
  display: flex;
  min-height: 100vh;
}

.sidebar {
  width: 6px;
  background-color: var(--sidebar);
  transition: width 0.3s ease;
  min-height: 100vh;
  overflow: hidden;
  flex-shrink: 0;
}

.sidebar:hover {
  width: 200px;
}

.right {
  display: flex;
  flex-direction: column;
  flex: 1;
}

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 15px 32px;
  background-color: var(--nav);
  border-bottom: 1px solid var(--border);
}

.nav-logo {
  font-size: 1rem;
  color: #e8e3d8;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.nav-label {
  font-size: 0.72rem;
  color: #5a5a52;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.main {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 48px 32px;
}

.upload-section {
  max-width: 420px;
  width: 100%;
  text-align: center;
}

.upload-section h1 {
  font-size: 1rem;
  color: var(--text);
  font-weight: 400;
  margin-bottom: 6px;
  letter-spacing: 0.02em;
}

.upload-section h2 {
  font-size: 1rem;
  color: var(--text);
  font-weight: 400;
  margin-bottom: 12px;
  letter-spacing: 0.02em;
}

.upload-sub {
  font-size: 0.72rem;
  color: black;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 36px;
}

.divider {
  width: 150px;
  height: 1px;
  background: black;
  margin: 0 auto 36px;
}

.drop-zone {
  border: 2px dashed var(--accent);
  padding: 24px 20px 16px;
  margin-top: 10px;
  text-align: center;
  transition: background 0.2s ease, border-color 0.2s ease;
}

.drop-zone.drag-over {
  background: rgba(31, 31, 28, 0.08);
  border-color: #555;
}

.drop-zone-hint {
  font-size: 0.68rem;
  color: #666;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 12px;
}

.file-label {
  display: inline-block;
  padding: 9px 24px;
  border: 1px solid var(--accent);
  color: var(--text);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  cursor: pointer;
  background: transparent;
  font-family: 'Georgia', serif;
}

.file-label:hover {
  background: var(--accent);
  color: #f5f2ee;
}

.file-label input {
  display: none;
}

.file-list {
  margin-top: 8px;
  font-size: 0.68rem;
  color: var(--text);
  letter-spacing: 0.04em;
  text-align: left;
  min-height: 0;
}

.file-list p {
  padding: 3px 0;
  border-bottom: 1px solid rgba(0,0,0,0.1);
}

button {
  display: block;
  width: 100%;
  padding: 11px;
  background: var(--accent);
  color: #e8e3d8;
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  border: none;
  cursor: pointer;
  font-family: 'Georgia', serif;
  margin-top: 10px;
}

button:hover {
  background: #2e2e2a;
}

.sidebar-inner {
  padding: 24px 16px;
  opacity: 0;
  transition: opacity 0.2s ease;
  white-space: nowrap;
}

.sidebar:hover .sidebar-inner {
  opacity: 1;
}

.sidebar-item {
  display: block;
  font-size: 0.72rem;
  color: #9a9a8e;
  padding: 10px 0;
  border-bottom: 1px solid #3a3a38;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.text-input {
  display: block;
  width: 100%;
  padding: 9px 14px;
  margin-bottom: 0;
  border: 1px solid black;
  background: transparent;
  font-family: 'Georgia', serif;
  font-size: 0.8rem;
  color: var(--text);
  letter-spacing: 0.04em;
  outline: none;
}

.text-input:focus {
  border-color: var(--text);
}

/* Name rows */
.name-row {
  position: relative;
  margin-bottom: 10px;
}

.name-row .text-input {
  width: 100%;
}

.name-row button {
  position: absolute;
  right: 0;
  top: 0;
  width: 43px;
  height: 100%;
  margin-top: 0;
  font-size: 1rem;
  padding: 0;
  line-height: 1;
  display: inline-block;
}

/* Spinner */
.spinner {
  display: none;
  flex-direction: column;
  align-items: center;
  gap: 20px;
  color: var(--text);
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.spinner-ring {
  width: 40px;
  height: 40px;
  border: 3px solid rgba(0,0,0,0.15);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* Output */
.output {
  display: none;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  text-align: center;
  max-width: 420px;
  width: 100%;
}

.output h1 {
  font-size: 1rem;
  font-weight: 400;
  letter-spacing: 0.02em;
  color: var(--text);
}

.output p {
  font-size: 0.8rem;
  color: var(--text);
  letter-spacing: 0.04em;
}

.output button {
  max-width: 200px;
}