:root {
  --color-white: #ffffff;
  --color-black: #000000;
  --accent-1: #121212;
  --accent-2: #45c0b6;
  --bg-1: #fafaf9;
  --bg-2: #6b6b6b;
  --text-dark: #121212;
  --text-light: #6b6b6b;
  --border: #e0e0e0;
  --radius: 8px;
  --shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background-color: var(--bg-1);
  color: var(--text-dark);
  margin: 0;
  padding: 0;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 1.5rem;
}

h1,
h2,
h3 {
  margin: 0 0 1rem;
  font-weight: 500;
  color: var(--text-dark);
}

h1 {
  font-size: 1.5rem;
}

h2 {
  font-size: 1.25rem;
}

h3 {
  font-size: 1.1rem;
}

.sidebar-title {
  font-size: 1.25rem;
  margin-bottom: 1rem;
  color: var(--accent-1);
}

button {
  background-color: var(--accent-1);
  border: none;
  padding: 0.5rem 1rem;
  color: var(--color-white);
  border-radius: var(--radius);
  font-size: 0.95rem;
  cursor: pointer;
  transition: background-color 0.2s;
}

button:hover {
  background-color: var(--accent-2);
}

input,
select,
textarea {
  padding: 0.5rem;
  margin-bottom: 1rem;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  width: 100%;
  font-size: 0.95rem;
}

.panel {
  background: var(--color-white);
  padding: 1.5rem;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  margin-bottom: 2rem;
}

a {
  text-decoration: none;
  color: var(--accent-2);
}

a:hover {
  text-decoration: underline;
}

.upload-status {
  font-size: 0.875rem;
  color: var(--text-light);
}

.file-box {
  display: inline-block;
  background: var(--bg-2);
  color: var(--color-white);
  border-radius: var(--radius);
  padding: 0.25rem 0.75rem;
  margin: 0.25rem;
  font-size: 0.8rem;
}

.file-box .remove {
  margin-left: 0.5rem;
  cursor: pointer;
  font-weight: bold;
}

.toast {
  position: fixed;
  bottom: 1rem;
  right: 1rem;
  background-color: var(--accent-1);
  color: var(--color-white);
  padding: 0.75rem 1rem;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.toast.show {
  opacity: 1;
  pointer-events: auto;
}

.loader-overlay {
  position: fixed;
  inset: 0;
  background: rgba(255, 255, 255, 0.5);
  z-index: 9999;
  display: flex;
  justify-content: center;
  align-items: center;
}

.loader-spinner {
  border: 4px solid var(--bg-2);
  border-top: 4px solid var(--accent-2);
  border-radius: 50%;
  width: 36px;
  height: 36px;
  animation: spin 1s linear infinite;
}

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

.topbar {
  background-color: var(--accent-1);
  color: var(--color-white);
  padding: 0.75rem 0;
  box-shadow: var(--shadow);
}

.topbar-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.topbar-logo {
  margin: 0;
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-white);
}

.topbar-nav a {
  color: var(--color-white);
  margin-left: 1.5rem;
  font-size: 0.95rem;
  transition: opacity 0.2s ease;
}

.topbar-nav a:hover {
  opacity: 0.85;
}

/* Header */
.topbar {
  background-color: #111827;
  padding: 12px 24px;
  color: #fff;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.1);
}

.topbar-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.topbar-logo {
  font-size: 20px;
  font-weight: bold;
  color: #ffffff;
  margin: 0;
}

.topbar-nav {
  display: flex;
  align-items: center;
  gap: 16px;
}

.topbar-nav a,
.settings-btn {
  color: #ffffff;
  text-decoration: none;
  background: none;
  border: none;
  font-size: 15px;
  cursor: pointer;
  transition: opacity 0.2s;
}

.topbar-nav a:hover,
.settings-btn:hover {
  opacity: 0.75;
}

.settings-btn {
  display: flex;
  align-items: center;
  gap: 4px;
}