/* Reset, typography, and the app shell layout (mobile-first, RTL-native). */

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

html {
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.6;
  font-weight: 400;
  min-height: 100dvh;
}

h1,
h2,
h3,
p {
  margin: 0;
}

button {
  font: inherit;
  color: inherit;
  background: none;
  border: none;
  padding: 0;
  cursor: pointer;
}

input,
textarea {
  font: inherit;
  color: inherit;
}

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

kbd {
  font-family: var(--font);
  font-size: 11px;
  color: var(--text-3);
  border: 1px solid var(--border);
  border-block-end-width: 2px;
  border-radius: 5px;
  padding: 1px 6px;
  background: var(--surface-2);
}

/* Visible keyboard focus everywhere (WCAG 2.4.7) */
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 6px;
}

/* Times and statistics use Latin numerals. */
.num {
  font-variant-numeric: tabular-nums;
  direction: ltr;
  unicode-bidi: isolate;
}

/* ---- Shell ---- */

.shell {
  min-height: 100dvh;
}

.content {
  max-width: 680px;
  margin-inline: auto;
  padding-inline: var(--space-4);
  padding-block-start: var(--space-4);
  /* room for the quick add bar + tab bar on mobile */
  padding-block-end: calc(140px + env(safe-area-inset-bottom));
}

.view-header {
  padding-block: var(--space-2) var(--space-4);
}

.view-title {
  font-size: 28px;
  font-weight: 600;
  line-height: 1.3;
}

.view-date {
  color: var(--text-2);
  font-size: 14px;
  font-weight: 400;
}

/* ---- Bottom tab bar (mobile) ---- */

.nav {
  position: fixed;
  inset-inline: 0;
  inset-block-end: 0;
  display: flex;
  align-items: stretch;
  justify-content: space-around;
  background: var(--surface);
  border-block-start: 1px solid var(--border);
  padding-block-end: env(safe-area-inset-bottom);
  z-index: 20;
}

.nav-item {
  position: relative;
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  padding-block: var(--space-2) var(--space-1);
  color: var(--text-3);
  font-size: 11px;
  transition: color var(--dur-fast) var(--ease);
}

.nav-item:hover {
  color: var(--text-2);
}

.nav-item svg {
  width: 24px;
  height: 24px;
}

.nav-item[aria-current='page'] {
  color: var(--accent);
  font-weight: 500;
}

.nav-item[aria-current='page']::before {
  content: '';
  position: absolute;
  inset-block-start: 0;
  inset-inline: 34%;
  height: 2px;
  border-end-start-radius: 2px;
  border-end-end-radius: 2px;
  background: var(--accent);
}

.nav-add {
  flex: 0 0 64px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.nav-add-circle {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-btn);
  background: var(--accent-strong);
  color: var(--on-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform var(--dur-fast) var(--ease), background var(--dur-fast) var(--ease);
}

.nav-add:hover .nav-add-circle {
  background: var(--accent-strong-hover);
}

.nav-add:active .nav-add-circle {
  transform: scale(0.95);
}

.nav-add-circle svg {
  width: 22px;
  height: 22px;
}

/* ---- Quick Add bar ---- */

.quickadd {
  position: fixed;
  inset-inline: 0;
  inset-block-end: calc(56px + env(safe-area-inset-bottom));
  padding: var(--space-2) var(--space-4);
  z-index: 19;
}

.quickadd-inner {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  max-width: 680px;
  margin-inline: auto;
  background: var(--surface-2);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-card);
  padding: var(--space-1) var(--space-4);
  box-shadow: var(--shadow-float);
  transition: border-color var(--dur-fast) var(--ease), box-shadow var(--dur-fast) var(--ease);
}

.quickadd-inner:focus-within {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-tint), var(--shadow-float);
}

.quickadd-icon {
  width: 17px;
  height: 17px;
  color: var(--text-3);
  flex: 0 0 auto;
}

.quickadd-inner:focus-within .quickadd-icon {
  color: var(--accent);
}

.quickadd input {
  flex: 1;
  min-width: 0;
  background: none;
  border: none;
  padding: var(--space-3) 0;
  font-size: 15px;
}

.quickadd input:focus {
  outline: none;
}

.quickadd input::placeholder {
  color: var(--text-3);
}

.quickadd-kbd {
  flex: 0 0 auto;
}

@media (max-width: 767px) {
  .quickadd-kbd {
    display: none;
  }
}

/* ---- Desktop: slim sidebar on the inline-start (right in RTL) ---- */

@media (min-width: 768px) {
  .nav {
    inset-inline: auto;
    inset-inline-start: 0;
    inset-block: 0;
    flex-direction: column;
    justify-content: flex-start;
    gap: var(--space-2);
    width: 84px;
    border-block-start: none;
    border-inline-end: 1px solid var(--border);
    padding-block-start: var(--space-5);
  }

  .nav-item {
    flex: 0 0 auto;
    font-size: 12px;
    gap: var(--space-1);
    padding-block: var(--space-3);
  }

  .nav-item[aria-current='page']::before {
    /* hug the content-facing edge of the rail (inline-end in RTL) */
    inset-block: 24%;
    inset-inline: auto;
    inset-inline-end: 0;
    width: 2px;
    height: auto;
    border-radius: 0;
    border-start-start-radius: 2px;
    border-end-start-radius: 2px;
  }

  .nav-add {
    order: -1;
    flex: 0 0 auto;
    padding-block-end: var(--space-3);
  }

  .content {
    margin-inline-start: calc(84px + (100% - 84px - 680px) / 2);
    padding-block-end: var(--space-7);
  }

  .quickadd {
    position: sticky;
    inset-block-start: var(--space-2);
    inset-block-end: auto;
    margin-inline-start: 84px;
    border-block-start: none;
    padding-block: var(--space-2);
  }
}

/* ---- Reduced motion ---- */

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}