/* ═══════════════════════════════════════════════
   Spooky's File Server — Terminal Hacker Theme
   ═══════════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@400;500;600;700;800&family=Inter:wght@400;500;600;700&display=swap');

/* ─── Design Tokens ─── */
:root {
  /* Surface */
  --bg: #0a0f0a;
  --bg-raised: rgba(10, 18, 10, 0.9);
  --bg-surface: rgba(14, 24, 14, 0.7);
  --bg-hover: rgba(20, 35, 20, 0.6);
  --bg-input: rgba(6, 12, 6, 0.7);

  /* Borders */
  --border: rgba(0, 255, 65, 0.1);
  --border-focus: rgba(0, 255, 65, 0.5);
  --border-dim: rgba(0, 255, 65, 0.06);

  /* Text */
  --text: #d4f5d4;
  --text-secondary: #6fbf6f;
  --text-muted: #3a6b3a;

  /* Accents */
  --green: #00ff41;
  --green-dim: #00cc33;
  --green-glow: rgba(0, 255, 65, 0.15);
  --green-bright: #33ff66;
  --success: #00ff41;
  --danger: #ff3333;
  --danger-glow: rgba(255, 51, 51, 0.15);
  --amber: #ffcc00;

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.5);
  --shadow-md: 0 8px 32px rgba(0, 0, 0, 0.4);
  --shadow-glow: 0 0 30px rgba(0, 255, 65, 0.06);
  --text-glow: 0 0 10px rgba(0, 255, 65, 0.5);

  /* Radii */
  --r-sm: 6px;
  --r-md: 10px;
  --r-lg: 14px;
  --r-xl: 18px;
  --r-pill: 999px;

  /* Fonts */
  --font: 'JetBrains Mono', 'Fira Code', 'Cascadia Code', monospace;
  --font-body: 'Inter', -apple-system, sans-serif;

  /* Transitions */
  --ease: cubic-bezier(0.4, 0, 0.2, 1);
  --dur: 200ms;
}

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
}

body {
  font-family: var(--font);
  font-size: 14px;
  color: var(--text);
  background: var(--bg);
  min-height: 100vh;
  overflow-x: hidden;
  line-height: 1.6;
  position: relative;
}

/* Scanline overlay */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 2px,
    rgba(0, 0, 0, 0.08) 2px,
    rgba(0, 0, 0, 0.08) 4px
  );
  pointer-events: none;
  z-index: 9999; will-change: transform;
}

a { color: inherit; text-decoration: none; }
button, input, textarea { font: inherit; color: inherit; }
ul { list-style: none; }

/* ─── Ambient Grid + Glow ─── */
.bg-orb {
  position: fixed;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.3;
  pointer-events: none;
  z-index: 0;
  animation: none;
}

.bg-orb--teal {
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(0, 255, 65, 0.4), transparent 70%);
  top: -80px;
  right: -80px;
}

.bg-orb--violet {
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(0, 200, 50, 0.25), transparent 70%);
  bottom: -120px;
  left: -120px;
  animation: none;
}

.bg-orb--amber {
  width: 250px;
  height: 250px;
  background: radial-gradient(circle, rgba(0, 255, 65, 0.15), transparent 70%);
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  animation: none;
}

@keyframes pulse {
  0% { opacity: 0.2; transform: scale(1); }
  100% { opacity: 0.35; transform: scale(1.1); }
}

/* ─── App Container ─── */
.app {
  position: relative;
  z-index: 1;
  width: min(660px, calc(100% - 2rem));
  margin: 0 auto;
  padding: 1.5rem 0 3rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

/* ─── Top Bar ─── */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.65rem 1rem;
  background: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  
  box-shadow: var(--shadow-sm), var(--shadow-glow);
}

.topbar__brand {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  transition: opacity var(--dur) var(--ease);
}

.topbar__brand:hover { opacity: 0.8; }

.topbar__logo {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: var(--r-sm);
  background: rgba(0, 255, 65, 0.12);
  border: 1px solid rgba(0, 255, 65, 0.2);
  color: var(--green);
  text-shadow: var(--text-glow);
}

.topbar__name {
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--green);
  text-shadow: var(--text-glow);
  letter-spacing: -0.01em;
}

.topbar__stats {
  display: flex;
  gap: 0.4rem;
}

.topbar__chip {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 0.25rem 0.55rem;
  border-radius: var(--r-sm);
  background: var(--bg-surface);
  border: 1px solid var(--border-dim);
  min-width: 55px;
}

.topbar__chip-label {
  font-size: 0.6rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  font-weight: 600;
}

.topbar__chip-value {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--green);
  text-shadow: 0 0 6px rgba(0, 255, 65, 0.3);
}

/* ─── Tabs ─── */
.tabs {
  display: flex;
  gap: 0.25rem;
  padding: 0.25rem;
  background: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  
}

.tabs__btn {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  padding: 0.6rem 0.8rem;
  border: 1px solid transparent;
  border-radius: var(--r-sm);
  background: transparent;
  color: var(--text-muted);
  font-weight: 600;
  font-size: 0.82rem;
  cursor: pointer;
  transition: all var(--dur) var(--ease);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.tabs__btn:hover {
  color: var(--text-secondary);
  background: var(--bg-surface);
}

.tabs__btn--active {
  background: var(--bg-surface);
  color: var(--green);
  border-color: var(--border);
  text-shadow: 0 0 8px rgba(0, 255, 65, 0.3);
  box-shadow: var(--shadow-sm);
}

.tabs__btn--active svg {
  color: var(--green);
  filter: drop-shadow(0 0 4px rgba(0, 255, 65, 0.4));
}

/* ─── Panels ─── */
.panel {
  padding: 1.35rem;
  background: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: var(--r-xl);
  
  box-shadow: var(--shadow-md), var(--shadow-glow);
  animation: panel-in 400ms var(--ease) both;
}

@keyframes panel-in {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.panel__header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 1.15rem;
}

.panel__title {
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--green);
  text-shadow: var(--text-glow);
  letter-spacing: -0.02em;
}

.panel__title::before {
  content: '> ';
  color: var(--text-muted);
  text-shadow: none;
}

.panel__subtitle {
  font-family: var(--font-body);
  color: var(--text-secondary);
  font-size: 0.82rem;
  margin-top: 0.2rem;
}

.panel__actions { display: flex; gap: 0.4rem; }

/* ─── Buttons ─── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.6rem 1rem;
  border: 1px solid var(--border);
  border-radius: var(--r-sm);
  font-weight: 600;
  font-size: 0.82rem;
  cursor: pointer;
  transition: all var(--dur) var(--ease);
  white-space: nowrap;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn:disabled { opacity: 0.4; cursor: not-allowed; transform: none; }

.btn--primary {
  background: rgba(0, 255, 65, 0.12);
  border-color: rgba(0, 255, 65, 0.3);
  color: var(--green);
  text-shadow: 0 0 6px rgba(0, 255, 65, 0.3);
}

.btn--primary:hover {
  background: rgba(0, 255, 65, 0.2);
  border-color: rgba(0, 255, 65, 0.5);
  box-shadow: 0 0 20px rgba(0, 255, 65, 0.15);
}

.btn--ghost {
  background: transparent;
  border-color: var(--border-dim);
  color: var(--text-secondary);
}

.btn--ghost:hover {
  color: var(--green);
  border-color: var(--border);
  background: var(--bg-surface);
}

.btn--sm {
  padding: 0.35rem 0.6rem;
  font-size: 0.72rem;
}

/* ─── Inputs ─── */
.input {
  width: 100%;
  padding: 0.6rem 0.8rem;
  border: 1px solid var(--border);
  border-radius: var(--r-sm);
  background: var(--bg-input);
  color: var(--text);
  font-size: 0.82rem;
  outline: none;
  transition: border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.input::placeholder { color: var(--text-muted); }

.input:focus {
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px var(--green-glow), 0 0 12px rgba(0, 255, 65, 0.08);
}

.input-group {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  flex: 1;
}

.input-group__label {
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

/* ─── Dropzone ─── */
.dropzone {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  padding: 2.2rem 1.2rem;
  border: 1px dashed rgba(0, 255, 65, 0.2);
  border-radius: var(--r-lg);
  background:
    radial-gradient(ellipse at center top, rgba(0, 255, 65, 0.04), transparent 60%),
    var(--bg-surface);
  cursor: pointer;
  text-align: center;
  transition: all 250ms var(--ease);
}

.dropzone:hover,
.dropzone.is-dragging {
  border-color: var(--green);
  background:
    radial-gradient(ellipse at center top, rgba(0, 255, 65, 0.1), transparent 60%),
    var(--bg-hover);
  box-shadow: 0 0 30px rgba(0, 255, 65, 0.08), inset 0 0 30px rgba(0, 255, 65, 0.03);
}

.dropzone input {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
}

.dropzone__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--green-glow);
  border: 1px solid rgba(0, 255, 65, 0.15);
  color: var(--green);
  filter: drop-shadow(0 0 8px rgba(0, 255, 65, 0.3));
  transition: transform 250ms var(--ease);
}

.dropzone:hover .dropzone__icon { transform: scale(1.1); }

.dropzone__heading {
  font-size: 1rem;
  font-weight: 700;
  color: var(--green);
  text-shadow: 0 0 8px rgba(0, 255, 65, 0.3);
}

.dropzone__hint {
  color: var(--text-muted);
  font-size: 0.8rem;
  font-family: var(--font-body);
}

/* ─── File Queue ─── */
.file-queue {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}

.file-queue li {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.45rem 0.7rem;
  border-radius: var(--r-sm);
  background: var(--bg-surface);
  border: 1px solid var(--border-dim);
  color: var(--text-secondary);
  font-size: 0.78rem;
}

.file-queue li::before {
  content: '»';
  color: var(--green);
  font-weight: 700;
  text-shadow: 0 0 4px rgba(0, 255, 65, 0.4);
}

.file-queue:empty { display: none; }

/* ─── Form Row ─── */
.form-row {
  display: flex;
  gap: 0.65rem;
  align-items: flex-end;
}

.upload-form {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

/* ─── Progress ─── */
.progress-wrap {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.progress-track {
  flex: 1;
  height: 6px;
  border-radius: var(--r-pill);
  background: var(--bg-surface);
  overflow: hidden;
  border: 1px solid var(--border-dim);
}

.progress-fill {
  width: 0%;
  height: 100%;
  border-radius: inherit;
  background: var(--green);
  box-shadow: 0 0 10px rgba(0, 255, 65, 0.5);
  transition: width 120ms linear;
}

.progress-label {
  font-size: 0.7rem;
  color: var(--green);
  min-width: 36px;
  text-align: right;
  text-shadow: 0 0 4px rgba(0, 255, 65, 0.3);
}

/* ─── Feedback ─── */
.feedback {
  min-height: 18px;
  font-weight: 600;
  font-size: 0.8rem;
  transition: color var(--dur) var(--ease);
}

.feedback:empty { display: none; }
.feedback.error { color: var(--danger); text-shadow: 0 0 6px rgba(255, 51, 51, 0.3); }
.feedback.success { color: var(--green); text-shadow: var(--text-glow); }

/* ─── Search ─── */
.search-bar {
  position: relative;
  margin-bottom: 0.85rem;
}

.search-bar__icon {
  position: absolute;
  left: 0.75rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  pointer-events: none;
}

.search-bar__input { padding-left: 2.2rem; }

/* ─── File Grid ─── */
.file-grid {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.file-card {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 0.85rem;
  border-radius: var(--r-md);
  background: var(--bg-surface);
  border: 1px solid var(--border-dim);
  transition: all var(--dur) var(--ease);
}

.file-card:hover {
  background: var(--bg-hover);
  border-color: var(--border);
  box-shadow: 0 0 16px rgba(0, 255, 65, 0.04);
}

.file-card__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--r-sm);
  background: rgba(0, 255, 65, 0.08);
  border: 1px solid rgba(0, 255, 65, 0.1);
  color: var(--green);
  flex-shrink: 0;
}

.file-card__body {
  flex: 1;
  min-width: 0;
}

.file-card__name {
  display: block;
  font-size: 0.82rem;
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  color: var(--text);
}

.file-card__meta {
  color: var(--text-muted);
  font-size: 0.7rem;
  margin-top: 0.1rem;
  font-family: var(--font-body);
}

.file-card__sha {
  display: block;
  font-family: var(--font);
  font-size: 0.62rem;
  color: var(--green);
  opacity: 0.5;
  margin-top: 0.15rem;
  cursor: pointer;
  transition: opacity var(--dur) var(--ease);
}

.file-card__sha:hover {
  opacity: 1;
  text-shadow: 0 0 4px rgba(0, 255, 65, 0.3);
}

.file-card__actions {
  display: flex;
  gap: 0.3rem;
  flex-shrink: 0;
}

/* ─── Empty State ─── */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  padding: 2.5rem 1rem;
  border-radius: var(--r-lg);
  border: 1px dashed var(--border);
  text-align: center;
}

.empty-state__icon {
  color: var(--text-muted);
  opacity: 0.4;
}

.empty-state__title {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text-secondary);
}

.empty-state__text {
  color: var(--text-muted);
  font-size: 0.78rem;
  max-width: 260px;
  font-family: var(--font-body);
}

/* ─── Disk Bar ─── */
.disk-bar {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.45rem 0.85rem;
  background: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  
}

.disk-bar__track {
  flex: 1;
  height: 6px;
  border-radius: var(--r-pill);
  background: var(--bg-surface);
  overflow: hidden;
  border: 1px solid var(--border-dim);
}

.disk-bar__fill {
  width: 0%;
  height: 100%;
  border-radius: inherit;
  background: var(--green);
  box-shadow: 0 0 8px rgba(0, 255, 65, 0.4);
  transition: width 600ms var(--ease);
}

.disk-bar__fill--warn {
  background: var(--amber);
  box-shadow: 0 0 8px rgba(255, 204, 0, 0.4);
}

.disk-bar__fill--danger {
  background: var(--danger);
  box-shadow: 0 0 8px rgba(255, 51, 51, 0.4);
}

.disk-bar__label {
  font-size: 0.68rem;
  color: var(--text-secondary);
  white-space: nowrap;
  min-width: 120px;
  text-align: right;
}

/* ─── Utility ─── */
.hidden { display: none !important; }

/* ─── Responsive ─── */
@media (max-width: 640px) {
  .app {
    width: calc(100% - 1rem);
    padding: 0.75rem 0 2rem;
  }

  .topbar {
    flex-direction: column;
    gap: 0.6rem;
    align-items: flex-start;
  }

  .topbar__stats {
    width: 100%;
    justify-content: space-between;
  }

  .panel {
    padding: 1rem;
    border-radius: var(--r-lg);
  }

  .panel__title { font-size: 1.1rem; }

  .dropzone { padding: 1.6rem 0.8rem; }

  .form-row {
    flex-direction: column;
    align-items: stretch;
  }

  .btn { width: 100%; }

  .file-card { flex-wrap: wrap; }

  .file-card__actions {
    width: 100%;
    margin-top: 0.2rem;
  }

  .file-card__actions .btn { flex: 1; }
  .topbar__chip { flex: 1; }
}

/* ─── Scrollbar ─── */
::-webkit-scrollbar { width: 5px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb {
  background: rgba(0, 255, 65, 0.15);
  border-radius: var(--r-pill);
}
::-webkit-scrollbar-thumb:hover {
  background: rgba(0, 255, 65, 0.3);
}

/* ─── Blinking cursor on titles ─── */
.panel__title::after {
  content: '_';
  animation: blink 1s step-end infinite;
  color: var(--green);
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0; }
}

/* ─── Footer ─── */
.site-footer {
  text-align: center;
  padding: 1.2rem 0 0.5rem;
  font-size: 0.68rem;
  color: var(--text-muted);
  font-family: var(--font);
  opacity: 0.5;
}

.site-footer strong {
  color: var(--green);
  font-weight: 600;
}

/* Folder card styles */
.file-card--folder {
  border-color: rgba(255, 200, 50, 0.15);
}
.file-card--folder:hover {
  border-color: rgba(255, 200, 50, 0.3);
  box-shadow: 0 4px 24px rgba(255, 200, 50, 0.08);
}
.file-card__icon--folder {
  color: #f0c030;
}
.folder-card__name {
  font-size: 0.9rem;
  font-weight: 600;
  color: #f0d060;
  word-break: break-word;
}
.folder-card__meta {
  font-size: 0.75rem;
  color: #8a8a6a;
  margin-top: 0.15rem;
}