:root {
  font-family: 'Inter', sans-serif;
  color: #1c1c1c;
  background-color: #f8f8fb;
  --purple: #6426d1;
  --purple-dark: #4c1ea3;
  --gray: #9ca1b2;
  --border: #e3e6ef;
  --sidebar-width: 260px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background: #f8f8fb;
  color: #1f232e;
}

button,
input,
textarea {
  font-family: inherit;
}

.app-shell {
  min-height: 100vh;
  display: flex;
  justify-content: center;
  padding: 32px 24px 48px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-floating {
  align-self: flex-start;
  background: #fff;
  border-radius: 32px;
  padding: 12px 20px;
  box-shadow: 0 15px 35px rgba(20, 24, 60, 0.08);
}

.logo {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: var(--purple);
  color: #fff;
  display: grid;
  place-items: center;
  font-weight: 700;
  font-size: 20px;
}

.brand-name {
  font-weight: 700;
  letter-spacing: 0.08em;
}

.content {
  width: min(1100px, 100%);
  padding: 24px 32px 64px;
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.page-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.breadcrumb {
  color: var(--gray);
  text-transform: uppercase;
  font-size: 12px;
  letter-spacing: 0.1em;
}

h1 {
  margin: 8px 0 0;
  font-size: 32px;
}

.notifications {
  display: grid;
  gap: 16px;
}

.notifications article {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 12px;
  padding: 16px 20px;
  background: #fffaf2;
  border: 1px solid #ffe4c4;
  border-radius: 16px;
  font-size: 15px;
}

.notifications .icon {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: #ffb347;
  color: #fff;
  font-weight: 700;
  display: grid;
  place-items: center;
}

.upload-card {
  background: #ffffff;
  border-radius: 32px;
  padding: 40px;
  box-shadow: 0 25px 60px rgba(20, 24, 60, 0.08);
  display: flex;
  flex-direction: column;
  gap: 32px;
}

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

.eyebrow {
  text-transform: uppercase;
  font-size: 11px;
  color: var(--gray);
  letter-spacing: 0.15em;
  margin: 0;
}

.helper {
  margin-top: 8px;
  color: var(--gray);
}

form {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-weight: 500;
}

.field input,
.field textarea {
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 16px;
  font-size: 15px;
  background: #fcfcff;
}

.field input[readonly] {
  background: #f2f3f7;
  color: #7a7f92;
  cursor: not-allowed;
}

.field textarea {
  resize: vertical;
}

.fieldset {
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 24px;
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.fieldset legend {
  font-weight: 600;
  margin-bottom: 12px;
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  border-radius: 30px;
  border: 1px solid var(--border);
  cursor: pointer;
}

.chip input {
  accent-color: var(--purple);
}

.dropzone {
  border: 1px dashed var(--border);
  border-radius: 20px;
  display: grid;
  place-items: center;
  padding: 32px;
  background: #fbf8ff;
  text-align: center;
  color: var(--gray);
}

.dropzone input[type='file'] {
  border: none;
  background: transparent;
  text-align: center;
}

.grid.two {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
}

.tracks {
  border-top: 1px solid var(--border);
  padding-top: 24px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.tracks-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}

.track-buttons {
  display: flex;
  gap: 12px;
}

.track {
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  background: #fefeff;
}

#tracks-container {
  display: flex;
  flex-direction: column;
  gap: 32px;
  margin-top: 16px;
}

.track header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.track-controls {
  display: flex;
  gap: 6px;
}

.icon-button {
  border: none;
  background: rgba(100, 38, 209, 0.08);
  color: var(--purple);
  border-radius: 8px;
  width: 32px;
  height: 32px;
  cursor: pointer;
  font-size: 14px;
}

.primary,
.secondary,
.ghost {
  border-radius: 24px;
  padding: 12px 24px;
  font-weight: 600;
  font-size: 15px;
  cursor: pointer;
  border: none;
}

.primary {
  background: var(--purple);
  color: #fff;
}

.primary:hover {
  background: var(--purple-dark);
}

.secondary {
  background: rgba(100, 38, 209, 0.12);
  color: var(--purple);
}

.ghost {
  background: transparent;
  color: var(--purple);
}

.error {
  min-height: 18px;
  font-size: 12px;
  color: #d14343;
}

.form-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.status-banner {
  margin-top: 8px;
  border-radius: 20px;
  padding: 16px 20px;
  border: 1px solid var(--border);
  background: #f5f5ff;
  font-weight: 500;
  color: #4b4f63;
}

.status-banner.success {
  background: rgba(69, 214, 163, 0.18);
  border-color: rgba(69, 214, 163, 0.6);
  color: #0e6c4c;
}

.status-banner.error {
  background: #fff5f5;
  border-color: rgba(209, 67, 67, 0.5);
  color: #d14343;
}

/* Preview block removed */

@media (max-width: 980px) {
  .app-shell {
    padding: 16px;
  }
  .content {
    padding: 24px 16px 48px;
  }
}