/* ── Mobile phone layout (≤768px) ─────────────────────────────── */

@media (max-width: 768px) {
  :root {
    --frame-inset: clamp(4px, 1.2vw, 8px);
    --frame-radius: clamp(10px, 2.5vw, 14px);
    --container-pad: 10px;
    --topbar-height: 52px;
  }

  .app-shell {
    padding:
      max(var(--frame-inset), env(safe-area-inset-top, 0px))
      max(var(--frame-inset), env(safe-area-inset-right, 0px))
      max(var(--frame-inset), env(safe-area-inset-bottom, 0px))
      max(var(--frame-inset), env(safe-area-inset-left, 0px));
    min-height: 100dvh;
  }

  .main-area {
    margin-left: 0;
    border: 1px solid var(--glass-border);
    border-radius: var(--frame-radius);
    min-height: calc(100dvh - 2 * var(--frame-inset));
    max-height: calc(100dvh - 2 * var(--frame-inset));
  }

  .topbar {
    display: grid;
    grid-template-columns: minmax(44px, 1fr) auto minmax(44px, 1fr);
    grid-template-areas: "left brand right";
    align-items: center;
    column-gap: 8px;
    padding: 8px 10px;
    padding-top: max(8px, env(safe-area-inset-top));
    padding-left: max(10px, env(safe-area-inset-left));
    padding-right: max(10px, env(safe-area-inset-right));
    border-bottom: 1px solid var(--glass-border);
  }

  .topbar-side--left {
    grid-area: left;
    flex: unset;
    justify-self: start;
    max-width: 100%;
  }

  .topbar-brand {
    grid-area: brand;
    display: flex;
    position: static;
    transform: none;
    justify-content: center;
    align-self: center;
    max-width: min(112px, 28vw);
    pointer-events: none;
  }

  .topbar-side--right {
    grid-area: right;
    flex: unset;
    justify-self: end;
    max-width: 100%;
  }

  .topbar-right {
    gap: 6px;
  }

  .topbar-right .btn-topbar {
    padding: 8px 10px;
    font-size: 11px;
    min-height: 40px;
    min-width: 40px;
  }

  #settings-btn {
    min-width: 40px;
    min-height: 40px;
  }

  .btn-topbar-label {
    display: none;
  }

  .hamburger {
    min-width: 40px;
    min-height: 40px;
    width: 40px;
    padding: 8px;
    border-radius: var(--radius-btn);
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--glass-border);
  }

  .user-avatar--topbar {
    width: 40px;
    height: 40px;
    font-size: 12px;
  }

  .page-wrapper {
    padding: 0;
    overflow: hidden;
  }

  /* Sidebar drawer */
  .sidebar {
    top: 0;
    left: 0;
    bottom: 0;
    width: min(88vw, 320px);
    border-radius: 0 20px 20px 0;
    border-right: 1px solid var(--glass-border);
    box-shadow: 24px 0 60px rgba(0, 0, 0, 0.45);
  }

  .sidebar-brand {
    padding: max(16px, env(safe-area-inset-top)) 20px 12px;
  }

  .sidebar-body {
    padding: 12px 16px;
  }

  .sidebar-stat-block {
    padding: 12px;
    margin-bottom: 8px;
    background: rgba(255, 255, 255, 0.025);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    border-bottom: 1px solid var(--glass-border);
  }

  .sidebar-actions {
    flex-direction: row;
    gap: 8px;
  }

  .export-range-fields {
    flex-direction: column;
    align-items: stretch;
  }

  .export-range-sep {
    text-align: center;
  }

  /* Compact shift sheet — fit viewport without scroll */
  .sheet.sheet--shift,
  .sheet.sheet--view {
    width: 100%;
    max-width: 100%;
    max-height: 100dvh;
    padding: max(14px, env(safe-area-inset-top)) max(14px, env(safe-area-inset-right)) max(16px, env(safe-area-inset-bottom)) max(14px, env(safe-area-inset-left));
    overflow: hidden;
  }

  .sheet--shift .sheet-header--compact {
    margin-bottom: 10px;
    padding-bottom: 10px;
  }

  .sheet--shift .shift-form--compact {
    gap: 8px;
  }

  .shift-times-row {
    grid-template-columns: 1fr 1fr;
    gap: 8px;
  }

  .job-timed-row {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .job-timed-times {
    grid-template-columns: 1fr 1fr;
    gap: 8px;
  }

  .job-timed-add {
    width: 100%;
    min-height: 40px;
  }

  .job-quick-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .job-all-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .job-timed-row--composer {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .job-timed-add-btn {
    width: 100%;
  }

  .shift-add-jobs.is-composer-open .job-timed-composer {
    padding: 12px;
  }

  .shift-form--unified .shift-form-actions {
    grid-template-columns: 1fr 1fr;
  }

  .sidebar-dismiss {
    transform: translate(40%, -50%);
    width: 24px;
    height: 48px;
  }

  .settings-tabs {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .sheet--shift .time-picker-dials {
    grid-template-columns: minmax(52px, 1fr) auto minmax(52px, 1fr);
  }

  .sidebar-action {
    min-height: 44px;
    border: 1px solid var(--glass-border);
    border-radius: 10px;
  }

  .sidebar-footer {
    padding-bottom: max(12px, env(safe-area-inset-bottom));
  }

  .sidebar-overlay.open {
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
  }

  /* Layout: mobile hero + calendar grid */
  .calendar-toolbar--desktop {
    display: none;
  }

  .mobile-hero {
    display: block;
    flex-shrink: 0;
    padding: 10px max(12px, env(safe-area-inset-right)) 8px max(12px, env(safe-area-inset-left));
    border-bottom: 1px solid var(--glass-border);
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.025) 0%, transparent 100%);
  }

  .calendar-layout {
    gap: 0;
    height: 100%;
  }

  .calendar-grid-wrap {
    flex: 1;
    min-height: 0;
    padding: 8px max(10px, env(safe-area-inset-right)) max(10px, env(safe-area-inset-bottom)) max(10px, env(safe-area-inset-left));
    overflow: hidden;
  }

  .calendar-grid {
    height: 100%;
    gap: 5px;
  }

  /* Compact day headers — single letter */
  .day-header-full {
    display: none;
  }

  .day-header-short {
    display: inline;
    font-size: 11px;
    font-weight: 500;
    letter-spacing: 0;
  }

  .calendar-day-header {
    padding-bottom: 4px;
  }

  /* Touch-friendly day cells */
  .day-cell {
    border-radius: 8px;
    padding: 4px 2px;
    gap: 2px;
    min-height: 44px;
    -webkit-tap-highlight-color: transparent;
  }

  .day-cell:active {
    background: rgba(255, 255, 255, 0.06);
    transform: scale(0.96);
  }

  .day-cell.has-shift {
    background: rgba(139, 156, 198, 0.1);
    border-color: rgba(139, 156, 198, 0.22);
  }

  .day-cell .rate-band-bar {
    width: 100%;
    max-width: 92%;
    height: 2px;
    margin-top: 1px;
    margin-bottom: 1px;
  }

  .day-cell.empty {
    border: 1px dashed rgba(255, 255, 255, 0.07);
  }

  .day-cell.today {
    border-color: rgba(168, 184, 224, 0.45);
    box-shadow: inset 0 0 0 1px rgba(168, 184, 224, 0.2);
  }

  .day-cell.payday-only {
    background: rgba(168, 184, 224, 0.08);
    border-color: rgba(168, 184, 224, 0.22);
  }

  .day-number {
    font-size: clamp(11px, 3.2vw, 13px);
    font-weight: 500;
  }

  .day-hours {
    font-size: clamp(9px, 2.6vw, 11px);
    line-height: 1.1;
  }

  .day-pay {
    font-size: clamp(8px, 2.2vw, 10px);
    color: var(--accent-bright);
  }

  .day-add {
    opacity: 0.35;
    font-size: 14px;
  }

  .day-cell.empty:active .day-add,
  .day-cell.empty .day-add {
    opacity: 0.5;
  }

  /* Mobile hero components */
  .mobile-period-nav {
    display: flex;
    align-items: center;
    gap: 6px;
    margin-bottom: 10px;
  }

  .mobile-period-title {
    flex: 1;
    min-width: 0;
    text-align: center;
  }

  .mobile-period-range {
    font-size: 16px;
    font-weight: 400;
    color: var(--text-primary);
    margin: 0;
    line-height: 1.2;
  }

  .mobile-period-meta {
    font-size: 11px;
    color: var(--text-muted);
    margin: 2px 0 0;
  }

  .mobile-stat-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 6px;
    margin-bottom: 8px;
  }

  .mobile-stat-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
    padding: 8px 4px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--glass-border);
    border-radius: 10px;
    text-align: center;
  }

  .mobile-stat-card--accent {
    background: rgba(139, 156, 198, 0.1);
    border-color: rgba(168, 184, 224, 0.22);
  }

  .mobile-stat-label {
    font-size: 9px;
    text-transform: uppercase;
    letter-spacing: 0.07em;
    color: var(--text-muted);
  }

  .mobile-stat-value {
    font-size: 14px;
    color: var(--text-primary);
    font-variant-numeric: tabular-nums;
  }

  .mobile-stat-card--accent .mobile-stat-value {
    color: var(--accent-bright);
  }

  .mobile-milestones {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    justify-content: center;
  }

  .mobile-milestone-chip {
    font-size: 10px;
    padding: 4px 10px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--glass-border);
    color: var(--text-muted);
  }

  .mobile-milestone-chip--paid {
    border-color: rgba(168, 184, 224, 0.28);
    color: var(--accent-bright);
    background: rgba(168, 184, 224, 0.08);
  }

  /* Full-width sheets */
  .sheet,
  .sheet-wide,
  .sheet-narrow {
    width: 100%;
    max-width: 100%;
    padding: 20px max(16px, env(safe-area-inset-right)) max(24px, env(safe-area-inset-bottom)) max(16px, env(safe-area-inset-left));
  }

  .auth-page {
    justify-content: center;
    padding-top: max(8px, env(safe-area-inset-top));
    padding-bottom: max(8px, env(safe-area-inset-bottom));
    gap: 8px;
  }

  .auth-brand {
    margin-bottom: 8px;
  }

  .logo-wordmark--auth-centre {
    max-height: 44px;
    max-width: min(200px, 70vw);
  }

  .auth-card {
    padding: 14px;
    max-width: min(400px, 100%);
  }

  .auth-card h2 {
    margin-bottom: 10px;
    font-size: 17px;
  }

  .auth-form {
    gap: 8px;
  }

  .auth-powered {
    margin-top: 8px;
  }
}

@media (min-width: 769px) {
  .mobile-hero {
    display: none;
  }
}

@media (max-width: 380px) {
  .topbar-brand {
    max-width: min(96px, 26vw);
  }

  .topbar-right .btn-topbar {
    padding: 8px 10px;
  }

  #settings-btn {
    min-width: 44px;
    min-height: 44px;
  }

  .mobile-period-range {
    font-size: 14px;
  }

  .mobile-stat-value {
    font-size: 12px;
  }

  .calendar-grid-wrap {
    padding: 6px 8px;
  }

  .calendar-grid {
    gap: 3px;
  }
}

@media (max-width: 768px) and (max-height: 700px) {
  .mobile-stat-grid {
    margin-bottom: 6px;
  }

  .mobile-stat-card {
    padding: 6px 4px;
  }

  .mobile-milestones {
    display: none;
  }
}