@import url("./theme.css");

*, *::before, *::after { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  font-family: var(--font-body);
  color: var(--fg);
  background: var(--bg);
  min-height: 100vh;
}

/* Optional background image layer. Kept separate so content + interactions stay fully opaque. */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  background-image: var(--bg-image-url);
  background-size: var(--bg-image-size);
  background-position: var(--bg-image-pos);
  background-repeat: no-repeat;
  opacity: var(--bg-image-opacity);
  pointer-events: none;
  z-index: -1;
}

h1, h2, h3, .brand { font-family: var(--font-brand); letter-spacing: -0.01em; }
h1 { font-size: 2.25rem; margin: 0 0 0.5rem; }
h2 { font-size: 1.5rem; margin: 0 0 0.5rem; }
p  { line-height: 1.5; }

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

/* ---- Layout ---- */
.app {
  max-width: 720px;
  margin: 0 auto;
  padding: 2rem 1.25rem 4rem;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 0 2rem;
}
.topbar .brand {
  display: inline-flex;
  align-items: center;
  gap: 0.4em;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--fg);
  text-decoration: none;
}
.topbar .brand .brand-logo {
  width: 1em;
  height: 1em;
  display: block;
}
.topbar .session { color: var(--fg-muted); font-size: 0.9rem; }

/* ---- Cards ---- */
.card {
  background: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  box-shadow: var(--shadow-sm);
}
.card + .card { margin-top: 1rem; }

/* ---- Drop zone ---- */
.dropzone {
  background: color-mix(in srgb, var(--accent) 10%, transparent);
  border: 2px dashed var(--accent);
  border-radius: var(--radius-lg);
  padding: 3rem 1.5rem;
  text-align: center;
  color: var(--fg-muted);
  cursor: pointer;
  transition: background 120ms ease, border-color 120ms ease;
}
.dropzone:hover,
.dropzone.drag-over {
  background: color-mix(in srgb, var(--accent) 15%, transparent);
  border-color: var(--c-purple);
  color: var(--fg);
}
.dropzone strong { color: var(--fg); font-family: var(--font-brand); }
.dropzone input[type="file"] { display: none; }

/* ---- File list ---- */
.file-list { list-style: none; padding: 0; margin: 1rem 0 0; }
.file-list li {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 0.25rem 1rem;
  padding: 0.75rem 0;
  border-top: 1px solid var(--border);
}
.file-list li:first-child { border-top: none; }
.file-list .name { font-weight: 600; overflow-wrap: anywhere; }
.file-list .size { color: var(--fg-muted); font-variant-numeric: tabular-nums; }
.file-list .progress {
  grid-column: 1 / -1;
  height: 4px;
  background: var(--c-dark-teal-20);
  border-radius: 999px;
  overflow: hidden;
}
.file-list .progress > span {
  display: block;
  height: 100%;
  width: 0%;
  background: var(--c-neon-green);
  transition: width 120ms linear;
}
.file-list .status { color: var(--fg-muted); font-size: 0.85rem; }
.file-list .status.err { color: var(--danger); }
.file-list .status.ok  { color: var(--c-dark-teal); }
.file-list a { color: var(--accent); font-weight: 600; text-decoration: none; }

/* ---- Form ---- */
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; margin-top: 1rem; }
.form-row.single { grid-template-columns: 1fr; }
label { display: block; font-size: 0.85rem; color: var(--fg-muted); margin-bottom: 0.25rem; }

/* Inline help tooltip — a small ⓘ/? badge next to a label */
.tip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.05em; height: 1.05em;
  border-radius: 50%;
  background: var(--c-dark-teal-20);
  color: var(--fg-muted);
  font-size: 0.7rem;
  font-weight: 700;
  cursor: default;
  position: relative;
  vertical-align: middle;
  margin-left: 0.3em;
  user-select: none;
}
.tip-bubble {
  display: none;
  position: absolute;
  bottom: calc(100% + 6px);
  left: 50%;
  transform: translateX(-50%);
  white-space: nowrap;
  background: color-mix(in srgb, var(--fg) 90%, transparent);
  color: var(--bg-raised);
  font-size: 0.78rem;
  font-weight: 400;
  font-family: var(--font-body);
  padding: 0.35rem 0.6rem;
  border-radius: var(--radius-sm);
  pointer-events: none;
  z-index: 20;
}
.tip:hover .tip-bubble,
.tip:focus .tip-bubble { display: block; }
input[type="text"],
input[type="password"],
input[type="number"],
select {
  width: 100%;
  padding: 0.65rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg);
  color: var(--fg);
  font: inherit;
}
input:focus, select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 25%, transparent);
}

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.7rem 1.25rem;
  font: inherit;
  font-weight: 600;
  font-family: var(--font-brand);
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 80ms ease, background 120ms ease, border-color 120ms ease;
}
.btn:disabled { opacity: 0.5; cursor: not-allowed; }
.btn:active:not(:disabled) { transform: translateY(1px); }

.btn-primary {
  background: var(--accent);
  color: var(--accent-contrast);
}
.btn-primary:hover:not(:disabled) {
  background: color-mix(in srgb, var(--accent) 85%, black);
}

.btn-success {
  background: var(--success);
  color: var(--success-fg);
}
.btn-success:hover:not(:disabled) {
  background: color-mix(in srgb, var(--success) 80%, var(--c-dark-teal));
}

.btn-ghost {
  background: transparent;
  color: var(--fg);
  border-color: var(--border);
}
.btn-ghost:hover:not(:disabled) { background: var(--c-dark-teal-20); }

.btn-full { width: 100%; }

/* Subtle inline text-button — used for low-priority destructive actions */
.btn-link {
  background: none;
  border: none;
  color: var(--fg-muted);
  font: inherit;
  font-size: 0.82rem;
  cursor: pointer;
  padding: 0;
  text-decoration: underline;
  text-underline-offset: 2px;
  text-decoration-color: transparent;
  transition: color 120ms ease, text-decoration-color 120ms ease;
}
.btn-link:hover:not(:disabled) {
  color: var(--danger);
  text-decoration-color: var(--danger);
}

/* ---- Share link ---- */
.share {
  display: flex;
  gap: 0.5rem;
  align-items: stretch;
  margin-top: 0.75rem;
}
.share input {
  flex: 1;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.9rem;
}

.callout {
  padding: 0.75rem 1rem;
  border-left: 1px solid var(--warn);
  background: color-mix(in srgb, var(--warn) 15%, transparent);
  color: var(--warn);
  margin-top: 1rem;
}
.callout.error { border-color: var(--danger); background: color-mix(in srgb, var(--danger) 15%, transparent);color: var(--danger); }
.callout.success { border-color: var(--success); background: color-mix(in srgb, var(--success) 15%, transparent);color: var(--success); }

.tabs {
  display: flex;
  gap: 0.25rem;
  border-bottom: 1px solid var(--border);
  margin-bottom: 1.25rem;
}
.tab {
  background: none;
  border: none;
  padding: 0.6rem 1rem;
  cursor: pointer;
  color: var(--fg-muted);
  font: inherit;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
}
.tab:hover { color: var(--fg); }
.tab.active {
  color: var(--fg);
  border-bottom-color: var(--accent);
}

.hidden { display: none !important; }

.muted { color: var(--fg-muted); }
.small { font-size: 0.85rem; }

@media (max-width: 560px) {
  .form-row { grid-template-columns: 1fr; }
  .app { padding: 1rem 1rem 3rem; }
}