:root {
  color-scheme: light;
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;

  --cp-green: #154734;
  --cp-green-dark: #0e3325;
  --cp-gold: #c8a04d;
  --cp-gold-light: #e8d5a3;
  --ink: #1f2622;
  --muted: #5b6b63;
  --border: #dfe6e1;
  --bg: #f4f6f4;
  --card-bg: #ffffff;
  --error: #b3261e;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
}

.hidden {
  display: none !important;
}

/* Top brand bar */

.topbar {
  background: linear-gradient(135deg, var(--cp-green) 0%, var(--cp-green-dark) 100%);
  border-bottom: 3px solid var(--cp-gold);
}

.topbar-inner {
  max-width: 800px;
  margin: 0 auto;
  padding: 1rem 1.25rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.brand-mark {
  width: 2.25rem;
  height: 2.25rem;
  border-radius: 0.5rem;
  background: var(--cp-gold);
  flex-shrink: 0;
  clip-path: polygon(50% 0%, 100% 38%, 82% 100%, 18% 100%, 0% 38%);
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.25;
}

.brand-title {
  color: #fff;
  font-weight: 700;
  font-size: 1.05rem;
}

.brand-subtitle {
  color: var(--cp-gold-light);
  font-size: 0.8rem;
  letter-spacing: 0.02em;
}

/* Layout */

.app {
  max-width: 800px;
  margin: 0 auto;
  padding: 2rem 1.25rem 3rem;
}

.view {
  animation: fade-in 0.2s ease-out;
}

@keyframes fade-in {
  from {
    opacity: 0;
    transform: translateY(4px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Cards */

.card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 0.75rem;
  padding: 1.5rem;
  box-shadow: 0 1px 2px rgb(0 0 0 / 0.04);
}

.card + .card {
  margin-top: 1.25rem;
}

.card h1 {
  margin: 0 0 0.25rem;
  font-size: 1.4rem;
  color: var(--cp-green);
}

.card h2 {
  margin: 0;
  font-size: 1.1rem;
  color: var(--cp-green);
}

.card-subtitle {
  margin: 0 0 1.25rem;
  color: var(--muted);
  font-size: 0.9rem;
}

.login-card {
  max-width: 380px;
  margin: 2rem auto 0;
}

/* Forms */

form {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--ink);
  margin-top: 0.4rem;
}

input[type="text"],
input[type="password"] {
  font-size: 1rem;
  padding: 0.55rem 0.65rem;
  border: 1px solid var(--border);
  border-radius: 0.5rem;
  background: #fff;
  color: var(--ink);
}

input[type="text"]:focus,
input[type="password"]:focus {
  outline: none;
  border-color: var(--cp-green);
  box-shadow: 0 0 0 3px rgb(21 71 52 / 0.12);
}

.error {
  color: var(--error);
  min-height: 1.2em;
  font-size: 0.85rem;
  margin: 0.5rem 0 0;
}

/* Buttons */

.btn {
  font-size: 0.95rem;
  font-weight: 600;
  padding: 0.6rem 1.1rem;
  border-radius: 0.5rem;
  border: 1px solid transparent;
  cursor: pointer;
  transition: filter 0.15s ease, background 0.15s ease;
}

.btn:disabled {
  cursor: not-allowed;
  opacity: 0.6;
}

.btn-primary {
  background: var(--cp-green);
  color: #fff;
  margin-top: 0.75rem;
}

.btn-primary:hover:not(:disabled) {
  filter: brightness(1.1);
}

.btn-secondary {
  background: var(--cp-gold);
  color: var(--cp-green-dark);
}

.btn-secondary:hover:not(:disabled) {
  filter: brightness(1.05);
}

.btn-ghost {
  background: transparent;
  color: var(--cp-green);
  border-color: var(--border);
}

.btn-ghost:hover {
  background: var(--bg);
}

/* Header (main view) */

.app-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 1.25rem;
}

.app-header h1 {
  margin: 0 0 0.15rem;
  font-size: 1.5rem;
  color: var(--cp-green);
}

.username-pill {
  display: inline-block;
  background: var(--cp-gold-light);
  color: var(--cp-green-dark);
  font-weight: 700;
  padding: 0.1rem 0.5rem;
  border-radius: 0.35rem;
  font-size: 0.85rem;
}

/* Upload section */

.upload-controls {
  display: flex;
  gap: 0.75rem;
  align-items: center;
  flex-wrap: wrap;
}

.file-picker {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.55rem 0.9rem;
  border: 1px dashed var(--cp-green);
  border-radius: 0.5rem;
  background: var(--bg);
  color: var(--cp-green);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  max-width: 100%;
  overflow: hidden;
}

.file-picker span {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.file-picker:hover {
  background: var(--cp-gold-light);
}

.file-picker input[type="file"] {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  overflow: hidden;
}

#upload-status {
  width: 100%;
  margin: 0.75rem 0 0;
  color: var(--muted);
  font-size: 0.9rem;
  min-height: 1.2em;
}

/* Files table */

.files-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.75rem;
}

table {
  width: 100%;
  border-collapse: collapse;
}

th,
td {
  text-align: left;
  padding: 0.6rem 0.5rem;
  border-bottom: 1px solid var(--border);
  font-size: 0.9rem;
}

th {
  color: var(--muted);
  font-weight: 600;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

tbody tr:hover {
  background: var(--bg);
}

.empty-state {
  color: var(--muted);
  text-align: center;
  padding: 1.5rem 0;
  margin: 0;
}

.loading-state {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--muted);
  padding: 1.5rem 0;
  margin: 0;
  justify-content: center;
}

.spinner {
  width: 1rem;
  height: 1rem;
  border: 2px solid var(--border);
  border-top-color: var(--cp-green);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}

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