/* ============================================
   Header & Navigation
   ============================================ */
header {
  background-color: var(--color-surface);
  border-bottom: 1px solid var(--color-border-light);
  padding: calc(var(--spacing-unit) * 0.5) 0;
  margin-bottom: var(--spacing-3xl);
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(10px);
}

/* In-progress banner. Shown on every breakpoint (empty when no drive is
   running). Sticky at the top on mobile; static on desktop so it doesn't fight
   the sticky site header. */
#in-progress-banner-container {
  display: block;
  position: static;
  z-index: 95;
}

.in-progress-banner {
  background: linear-gradient(120deg,
    var(--color-secondary),
    var(--color-secondary-dark),
    var(--color-secondary)
  );
  color: var(--color-white);
  padding: var(--spacing-sm) var(--spacing-lg);
  position: relative;
  isolation: isolate;
}

/* A composited overlay rather than filter: brightness() on the banner itself —
   this runs for the whole length of a drive, so it must not repaint every frame. */
.in-progress-banner::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: var(--color-white);
  opacity: 0;
  pointer-events: none;
}

@media (prefers-reduced-motion: no-preference) {
  .in-progress-banner::before {
    animation: inProgressBannerPulse 2.6s ease-in-out infinite;
  }
}

@keyframes inProgressBannerPulse {
  0%, 100% { opacity: 0; }
  50% { opacity: 0.14; }
}

.in-progress-banner-content {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-md);
  font-size: 0.875rem;
}

.in-progress-banner-label {
  font-weight: 600;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.in-progress-banner-time {
  font-weight: 700;
}

.in-progress-banner-stop-form {
  margin: 0;
  display: inline-flex;
}

/* Stop control lives on the banner for desktop (mobile stops via the FAB).
   Scoped under .in-progress-banner so it out-specifies the global
   button[type="submit"] base (0,1,1) that would otherwise force a tall white
   box; keeps it a slim ghost pill that doesn't grow the banner's height. */
.in-progress-banner .in-progress-banner-stop {
  display: none;
  align-items: center;
  gap: 5px;
  min-height: 0;
  padding: 3px 12px;
  border: 1px solid rgba(255, 255, 255, 0.55);
  border-radius: 999px;
  background: transparent;
  color: var(--color-white);
  font-weight: 700;
  font-size: 0.78rem;
  font-family: inherit;
  line-height: 1.4;
  box-shadow: none;
  cursor: pointer;
  transition: background-color var(--duration-fast) ease, border-color var(--duration-fast) ease, color var(--duration-fast) ease;
}

@media (hover: hover) {
  .in-progress-banner .in-progress-banner-stop:hover {
    background: rgba(255, 255, 255, 0.18);
    border-color: var(--color-white);
    color: var(--color-white);
  }
}

.in-progress-banner-stop-icon {
  display: block;
}

@media (min-width: 769px) {
  .in-progress-banner .in-progress-banner-stop {
    display: inline-flex;
  }

  /* Pull the banner flush under the sticky header, cancelling the header's
     bottom margin. Applied to the banner itself (only present when a drive is
     running) so the empty container keeps the dashboard's normal top spacing. */
  .in-progress-banner {
    margin-top: calc(var(--spacing-3xl) * -1);
    margin-bottom: var(--spacing-3xl);
  }
}

header .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--spacing-lg);
}

.header-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
}

header h1 {
  margin: 0;
}

.app-logo a {
  display: inline-flex;
  align-items: baseline;
  gap: 0.15em;
  text-decoration: none;
}

.app-logo-wordmark {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 700;
  letter-spacing: 0.01em;
  text-transform: uppercase;
}

.app-logo-drive {
  color: var(--color-primary);
}

@media (hover: hover) {
  a:hover .app-logo-drive {
    color: var(--color-primary-dark);
  }
}

.app-logo-50 {
  color: var(--color-text-secondary);
}

@media (hover: hover) {
  a:hover .app-logo-50 {
    color: var(--color-text);
  }
}

.header-nav {
  position: relative;
}

header nav {
  display: flex;
  gap: var(--spacing-md);
  align-items: center;
  flex-wrap: wrap;
}

header nav span {
  color: var(--color-text-secondary);
  font-size: 0.9375rem;
  font-weight: 500;
}

section header {
  z-index: 1;
  display: block;
  background: none;
  box-shadow: none;
  border: none;
  margin: 0 0 var(--spacing-md);
  font-size: 0.875rem;
  text-align: left;
  font-weight: 600;
  color: var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

/* Mobile */
@media (max-width: 768px) {
  header {
    display: none;
  }

  header .container {
    padding: 0 var(--spacing-lg);
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }

  header nav {
    width: 100%;
    justify-content: flex-start;
  }

  header nav span {
    display: none;
  }

  section header {
    font-size: 0.875rem;
    text-align: center;
  }

  /* Stick the banner to the top on mobile (the site header is hidden there). */
  #in-progress-banner-container {
    position: sticky;
    top: 0;
  }
}

@media (max-width: 480px) {
  header h1 {
    font-size: 1.25rem;
  }

  header .container {
    padding: 0 var(--spacing-md);
  }
}

/* Dark mode header tweaks */
[data-theme="dark"] header,
body[data-theme="dark"] header {
  background-color: var(--color-surface);
  border-bottom-color: var(--color-border);
  box-shadow: 0 1px 3px 0 rgb(0 0 0 / 0.6), 0 1px 2px -1px rgb(0 0 0 / 0.7);
}