/* myPacing — shared responsive layout (all pages) */

:root {
  --app-pad-x: clamp(1rem, 4vw, 1.5rem);
  --app-pad-y: clamp(1.25rem, 3vh, 2rem);
  --app-radius: 12px;
  --app-radius-lg: 16px;
  --app-nav-h: 3.25rem;
  --app-nav-drawer-max: 1100px;
  --app-shadow-nav: 0 1px 0 rgba(0, 0, 0, 0.06);
  --app-shadow-menu: 0 12px 40px rgba(0, 0, 0, 0.1);
  --app-touch: 2.75rem;
}

html {
  overflow-x: clip;
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  max-width: 100%;
  overflow-x: clip;
}

body.app-nav-open {
  overflow: hidden;
  touch-action: none;
}

body.app-nav-open:not(.page-chat) {
  position: fixed;
  width: 100%;
}

/* —— Sticky app navigation —— */
nav.app-nav,
header.site-header.app-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  flex-wrap: nowrap;
  box-shadow: var(--app-shadow-nav);
}

nav.app-nav {
  position: sticky;
  top: 0;
  z-index: 300;
  padding: 0.55rem var(--app-pad-x);
}

nav.app-nav .nav-right {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  flex: 1 1 auto;
  min-width: 0;
  gap: 0.35rem 0.55rem;
}

nav.app-nav .nav-link {
  flex-shrink: 0;
  white-space: nowrap;
}

nav.app-nav .sync-btn {
  flex-shrink: 0;
  white-space: nowrap;
  font-size: 0.6875rem !important;
  padding: 0.45rem 0.85rem !important;
  margin: 0 !important;
}

header.site-header.app-nav {
  position: sticky;
  top: 0;
  z-index: 300;
  padding-left: 0;
  padding-right: 0;
}

header.site-header.app-nav .inner {
  width: 100%;
  max-width: 720px;
  margin: 0 auto;
  padding-left: var(--app-pad-x);
  padding-right: var(--app-pad-x);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
}

header.site-header.app-nav .inner > h1 {
  flex: 1 1 auto;
  min-width: 0;
}

nav.app-nav > h1,
header.site-header.app-nav h1 {
  flex: 0 1 auto;
  min-width: 0;
  max-width: 11rem;
  margin: 0;
  line-height: 1.2;
  font-size: clamp(0.95rem, 2.5vw, 1.15rem) !important;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.app-nav-toggle {
  display: none;
  flex-shrink: 0;
  align-items: center;
  justify-content: center;
  width: var(--app-touch);
  height: var(--app-touch);
  margin: 0;
  padding: 0;
  border: none;
  border-radius: 50%;
  background: transparent;
  color: var(--text, #1a1a1a);
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
  transition: background 0.15s, transform 0.15s;
}

.app-nav-toggle:hover {
  background: rgba(0, 0, 0, 0.05);
}

.app-nav-toggle:active {
  transform: scale(0.94);
}

.app-nav-toggle:focus-visible {
  outline: 2px solid var(--strava, #fc5200);
  outline-offset: 2px;
}

.app-nav-toggle-icon {
  display: block;
  width: 1.125rem;
  height: 2px;
  background: currentColor;
  border-radius: 1px;
  position: relative;
  transition: background 0.2s;
}

.app-nav-toggle-icon::before,
.app-nav-toggle-icon::after {
  content: "";
  position: absolute;
  left: 0;
  width: 100%;
  height: 2px;
  background: currentColor;
  border-radius: 1px;
  transition: transform 0.2s, top 0.2s;
}

.app-nav-toggle-icon::before {
  top: -6px;
}

.app-nav-toggle-icon::after {
  top: 6px;
}

nav.app-nav.is-open .app-nav-toggle-icon,
header.site-header.app-nav.is-open .app-nav-toggle-icon {
  background: transparent;
}

nav.app-nav.is-open .app-nav-toggle-icon::before,
header.site-header.app-nav.is-open .app-nav-toggle-icon::before {
  top: 0;
  transform: rotate(45deg);
}

nav.app-nav.is-open .app-nav-toggle-icon::after,
header.site-header.app-nav.is-open .app-nav-toggle-icon::after {
  top: 0;
  transform: rotate(-45deg);
}

.app-nav-backdrop {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 298;
  background: rgba(0, 0, 0, 0.42);
  backdrop-filter: blur(10px) saturate(120%);
  -webkit-backdrop-filter: blur(10px) saturate(120%);
  opacity: 0;
  transition: opacity 0.28s ease;
  pointer-events: none;
}

.app-nav-backdrop.is-visible {
  display: block;
  opacity: 1;
  pointer-events: auto;
}

@media (max-width: 1100px) {
  nav.app-nav,
  header.site-header.app-nav {
    flex-wrap: nowrap;
    padding: 0.5rem var(--app-pad-x) !important;
    z-index: 302;
  }

  nav.app-nav,
  header.site-header.app-nav {
    backdrop-filter: none !important;
    -webkit-backdrop-filter: none !important;
  }

  nav.app-nav > h1 {
    max-width: none;
    flex: 1 1 auto;
  }

  .app-nav-toggle {
    display: inline-flex;
    order: 2;
    margin-left: auto;
  }

  .app-nav-drawer {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    width: min(100%, 22rem);
    margin: 0;
    padding: max(0.75rem, env(safe-area-inset-top)) 1.5rem max(1.5rem, env(safe-area-inset-bottom));
    gap: 0;
    border: none;
    border-left: 1px solid rgba(0, 0, 0, 0.08);
    border-radius: 0;
    background: #fff;
    box-shadow: -20px 0 60px rgba(0, 0, 0, 0.14);
    z-index: 301;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    transform: translate3d(105%, 0, 0);
    visibility: hidden;
    pointer-events: none;
    transition: transform 0.36s cubic-bezier(0.32, 0.72, 0, 1), visibility 0.36s;
  }

  .app-nav-drawer.is-open {
    transform: translate3d(0, 0, 0);
    visibility: visible;
    pointer-events: auto;
  }

  .app-nav-drawer-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
    margin-bottom: 1.5rem;
    padding-bottom: 0.85rem;
    border-bottom: 1px solid var(--border, #e5e5e5);
  }

  .app-nav-drawer-label {
    margin: 0;
    font-size: 0.6875rem;
    font-weight: 700;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--muted, #8d8d8d);
  }

  .app-nav-drawer-close {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2.5rem;
    height: 2.5rem;
    margin: 0;
    padding: 0;
    border: none;
    border-radius: 50%;
    background: var(--mp-grey-100, #f5f5f5);
    color: var(--text, #111);
    cursor: pointer;
    -webkit-tap-highlight-color: transparent;
  }

  .app-nav-drawer-close .app-nav-toggle-icon {
    transform: scale(0.9);
  }

  .app-nav-drawer-close .app-nav-toggle-icon,
  .app-nav-drawer-close .app-nav-toggle-icon::before,
  .app-nav-drawer-close .app-nav-toggle-icon::after {
    background: currentColor;
  }

  .app-nav-drawer-close .app-nav-toggle-icon {
    background: transparent;
  }

  .app-nav-drawer-close .app-nav-toggle-icon::before {
    top: 0;
    transform: rotate(45deg);
  }

  .app-nav-drawer-close .app-nav-toggle-icon::after {
    top: 0;
    transform: rotate(-45deg);
  }

  .app-nav-drawer .nav-link,
  .app-nav-drawer a {
    display: flex;
    align-items: center;
    min-height: auto;
    padding: 0.3rem 0;
    width: 100%;
    text-align: left;
    justify-content: flex-start;
    border-radius: 0;
    border-bottom: none !important;
    text-decoration: none !important;
    transition: color 0.15s, transform 0.15s;
  }

  .app-nav-drawer .nav-link:active,
  .app-nav-drawer a:active {
    transform: translateX(3px);
    background: transparent;
  }

  .app-nav-drawer-foot {
    margin-top: auto;
    padding-top: 1.35rem;
    border-top: 1px solid var(--border, #e5e5e5);
    display: flex;
    flex-direction: column;
    gap: 0.65rem;
  }

  .app-nav-drawer-foot .sync-btn,
  .app-nav-drawer-foot .sync-link {
    width: 100%;
    justify-content: center;
    min-height: 2.75rem;
    padding: 0.7rem 1.25rem;
    border-radius: 999px;
  }

  .app-nav-drawer-foot .nav-link[data-logout] {
    justify-content: center;
    min-height: 2.25rem;
    margin: 0;
    padding: 0;
  }

  header.site-header.app-nav .inner {
    flex-wrap: nowrap;
    width: 100%;
  }
}

@keyframes appNavIn {
  from {
    opacity: 0;
    transform: translateY(-6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (min-width: 1101px) {
  nav.app-nav .nav-right {
    flex-wrap: nowrap;
    gap: 0.4rem 0.65rem;
  }

  nav.app-nav .nav-link {
    font-size: 0.75rem !important;
    letter-spacing: 0.05em !important;
  }

  .app-nav-drawer {
    position: static;
    width: auto;
    height: auto;
    padding: 0;
    border: none;
    box-shadow: none;
    background: transparent;
    transform: none !important;
    visibility: visible !important;
    pointer-events: auto !important;
    overflow: visible;
    flex-direction: row;
    align-items: center;
    gap: 0.4rem 0.65rem;
  }

  .app-nav-drawer-head {
    display: none;
  }

  .app-nav-drawer-foot {
    display: contents;
  }

  .app-nav-drawer > .nav-link,
  .app-nav-drawer > a,
  .app-nav-drawer-foot .sync-btn,
  .app-nav-drawer-foot .sync-link,
  .app-nav-drawer-foot [data-logout] {
    display: inline-flex;
    width: auto;
  }
}

/* —— Content shells —— */
.wrap,
.shell,
main {
  padding-left: var(--app-pad-x);
  padding-right: var(--app-pad-x);
}

@media (max-width: 900px) {
  .wrap {
    padding-top: var(--app-pad-y) !important;
    padding-bottom: calc(var(--app-pad-y) + env(safe-area-inset-bottom, 0px)) !important;
  }

  .shell {
    padding-top: 1.75rem !important;
    padding-bottom: calc(3.5rem + env(safe-area-inset-bottom, 0px)) !important;
  }

  main {
    padding-top: var(--app-pad-y) !important;
    padding-bottom: calc(2.5rem + env(safe-area-inset-bottom, 0px)) !important;
  }

  footer {
    padding-bottom: calc(1.5rem + env(safe-area-inset-bottom, 0px)) !important;
  }
}

/* —— Auth / login (index) —— */
body.page-auth {
  padding: max(var(--app-pad-y), env(safe-area-inset-top))
    var(--app-pad-x)
    max(var(--app-pad-y), env(safe-area-inset-bottom));
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

body.page-auth .wrap {
  width: 100%;
  max-width: 420px;
  margin: 0 auto;
  padding: 0;
}

body.page-auth h1 {
  font-size: clamp(1.45rem, 5vw, 1.75rem);
}

body.page-auth .card,
body.page-auth .login-modal {
  border-radius: var(--app-radius-lg);
}

body.page-auth .login-modal-body,
body.page-auth .login-modal-footer {
  padding-left: 1.15rem;
  padding-right: 1.15rem;
}

body.page-auth .domain-row {
  flex-direction: column;
  align-items: stretch;
}

body.page-auth .copy-btn {
  min-height: var(--app-touch);
  width: 100%;
}

body.page-auth .btn,
body.page-auth .strava-connect-btn {
  min-height: var(--app-touch);
}

body.page-auth .otp-row {
  flex-direction: column;
}

/* —— Legal (support, privacy) —— */
@media (max-width: 900px) {
  .intro h2 {
    font-size: clamp(1.4rem, 5vw, 1.75rem);
  }

  .card {
    padding: 1.15rem 1rem !important;
    border-radius: var(--app-radius-lg);
  }

  .privacy-callout {
    font-size: 0.9rem;
    line-height: 1.55;
  }

  details summary {
    padding: 1rem 1rem;
    font-size: 0.95rem;
  }

  details .answer {
    padding: 0 1rem 1rem;
  }

  footer {
    padding-left: var(--app-pad-x);
    padding-right: var(--app-pad-x);
  }
}

/* —— Story / dashboard —— */
@media (max-width: 900px) {
  .stat-strip {
    grid-template-columns: repeat(2, 1fr) !important;
    gap: 0.5rem !important;
  }

  .stat-strip .ss {
    padding: 0.85rem 0.65rem;
    border-radius: var(--app-radius);
  }

  .stat-strip .ss:last-child:nth-child(odd) {
    grid-column: 1 / -1;
  }

  .hero-profile {
    flex-wrap: wrap;
    gap: 0.85rem;
  }

  .hero-profile h2 {
    font-size: 1.45rem;
  }

  .hero-subtitle {
    font-size: 1.05rem;
    margin-bottom: 1.5rem;
  }

  .coach-strip {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.85rem;
    padding: 1rem 1.1rem;
    border-radius: var(--app-radius-lg);
  }

  .coach-strip-arrow {
    align-self: flex-end;
  }

  .chapter {
    padding-left: 1.25rem;
    margin-bottom: 2rem;
  }

  .chart-row {
    grid-template-columns: 1fr !important;
  }

  .pb-grid {
    grid-template-columns: repeat(2, 1fr) !important;
  }

  .week-grid {
    max-width: 100%;
  }

  .year-row {
    flex-wrap: wrap;
    gap: 0.35rem 0.75rem;
  }

  .year-stats {
    margin-left: 0;
    width: 100%;
    white-space: normal;
  }

  .recent-run {
    padding-left: 1rem;
    padding-right: 1rem;
  }

  .recent-run-list {
    border-radius: var(--app-radius-lg);
  }

  .recent-run-footer .run-strava-actions {
    flex-direction: column;
  }

  .recent-run-footer .diary-btn {
    width: 100%;
    justify-content: center;
    min-height: 2.5rem;
  }

  .desc-setting {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.5rem;
  }

  .pattern-box,
  .chart-box,
  .weekly-panel {
    border-radius: var(--app-radius-lg);
  }
}

@media (max-width: 420px) {
  .stat-strip .ss .v {
    font-size: 1.15rem;
  }

  .pb-grid {
    grid-template-columns: 1fr !important;
  }
}

/* —— Coach —— */
@media (max-width: 900px) {
  .page-head h2 {
    font-size: clamp(1.65rem, 6vw, 1.875rem) !important;
  }

  .hero-gradient {
    padding: 1.35rem 1.15rem 1.25rem;
    border-radius: var(--app-radius-lg);
  }

  .hero-glass-row {
    grid-template-columns: 1fr !important;
  }

  .hero-main {
    flex-direction: column;
    align-items: flex-start;
  }

  .zone-bar-wrap {
    max-width: 100%;
    width: 100%;
  }

  .metric-grid,
  .forecast-grid {
    grid-template-columns: 1fr !important;
    gap: 0.65rem !important;
  }

  .metric-tile {
    min-height: 0;
    padding: 1.1rem 1rem;
  }

  .panel {
    padding: 1.15rem 1rem !important;
    border-radius: var(--app-radius-lg);
  }

  .advice-banner {
    padding: 1rem 1.1rem;
    border-radius: var(--app-radius-lg);
  }

  .dim-row {
    flex-wrap: wrap;
    gap: 0.5rem;
  }

  .dim-row .pill {
    margin-left: auto;
  }

  .chart-wrap {
    height: 220px;
  }
}

/* —— Account —— */
@media (max-width: 900px) {
  .intro h2 {
    font-size: clamp(1.35rem, 5vw, 1.6rem);
  }

  .summary-row {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.2rem;
    padding: 0.55rem 0;
  }

  .summary-row > span:last-child {
    text-align: left;
    word-break: break-word;
  }

  .actions .btn {
    width: 100%;
    justify-content: center;
    min-height: var(--app-touch);
  }
}

/* —— Chat —— */
@media (max-width: 900px) {
  .banner-error,
  .banner-warn {
    margin-left: 0 !important;
    margin-right: 0 !important;
    border-radius: 0;
    padding-left: var(--app-pad-x) !important;
    padding-right: var(--app-pad-x) !important;
  }

  .desc-setting {
    padding: 0.55rem var(--app-pad-x) !important;
    text-align: left;
    justify-content: flex-start !important;
    font-size: 0.82rem;
  }

  .privacy-strip {
    padding: 0.6rem var(--app-pad-x) !important;
    text-align: left;
    justify-content: flex-start !important;
    font-size: 0.78rem;
    line-height: 1.5;
  }

  .privacy-strip strong {
    white-space: normal;
    display: block;
    margin-bottom: 0.15rem;
  }

  .msg {
    max-width: 100%;
    padding-left: var(--app-pad-x) !important;
    padding-right: var(--app-pad-x) !important;
    margin-left: 0 !important;
    margin-right: 0 !important;
  }

  .msg.ai .ai-content {
    overflow-wrap: anywhere;
    word-break: break-word;
  }

  .msg.ai pre {
    max-width: 100%;
  }

  .input-area {
    padding: 0.55rem var(--app-pad-x) calc(0.6rem + env(safe-area-inset-bottom, 0px)) !important;
  }

  .input-row {
    flex-wrap: nowrap;
    max-width: 100%;
    gap: 0.45rem;
  }

  .send-btn {
    min-width: 4.25rem;
    padding-left: 0.85rem;
    padding-right: 0.85rem;
  }

  .page-bottom {
    padding: 0 var(--app-pad-x) calc(0.35rem + env(safe-area-inset-bottom, 0px)) !important;
  }

  .welcome-head,
  .scope-teaser {
    padding-left: var(--app-pad-x) !important;
    padding-right: var(--app-pad-x) !important;
  }

  .suggestions {
    padding: 0 var(--app-pad-x) 1rem !important;
    gap: 0.45rem;
  }

  .suggestion {
    flex: 1 1 auto;
    min-width: min(100%, 10rem);
    text-align: center;
  }
}

/* —— PBs —— */
@media (max-width: 900px) {
  .custom-form {
    flex-direction: column;
    align-items: stretch;
  }

  .custom-form input {
    width: 100%;
    max-width: none;
    min-height: var(--app-touch);
  }

  .custom-form button {
    width: 100%;
    min-height: var(--app-touch);
  }

  .custom-box {
    padding: 1.15rem 1rem;
    border-radius: var(--app-radius-lg);
  }

  .pb-entry {
    padding-left: 1rem;
    padding-right: 1rem;
  }

  .pb-list {
    border-radius: var(--app-radius-lg);
  }

  .pb-entry-footer .run-strava-actions {
    flex-direction: column;
  }

  .pb-entry-footer .diary-btn {
    width: 100%;
    justify-content: center;
    min-height: 2.5rem;
  }
}

/* —— Admin —— */
body.page-admin .wrap {
  padding: var(--app-pad-y) var(--app-pad-x) calc(2.5rem + env(safe-area-inset-bottom, 0px));
}

@media (max-width: 900px) {
  body.page-admin .toolbar {
    flex-direction: column;
    align-items: stretch;
  }

  body.page-admin .toolbar > div:last-child {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
  }

  body.page-admin .btn.secondary {
    margin-left: 0;
    width: 100%;
    min-height: var(--app-touch);
  }

  body.page-admin .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  body.page-admin .table-wrap {
    margin: 0 calc(-1 * var(--app-pad-x));
    padding: 0 var(--app-pad-x);
  }

  body.page-admin table {
    font-size: 0.78rem;
  }

  body.page-admin th,
  body.page-admin td {
    padding: 0.45rem 0.35rem;
  }

  body.page-admin .actions {
    flex-direction: column;
    white-space: normal;
  }
}

/* —— Launch / preview gate —— */
body.page-launch {
  overflow-x: hidden;
}

@media (max-width: 919px) {
  body.page-launch .content {
    width: 100%;
    max-width: none;
  }

  body.page-launch .panel {
    width: 100%;
  }

  body.page-launch .continue-btn,
  body.page-launch .waitlist-btn {
    min-height: var(--app-touch);
  }

  body.page-launch .field input {
    min-height: var(--app-touch);
    font-size: 1rem;
  }

  body.page-launch .brand {
    font-size: clamp(2.5rem, 12vw, 3.5rem);
  }

  body.page-launch .tagline {
    font-size: clamp(1.05rem, 4vw, 1.25rem);
  }
}