/* =============================================================
   BASE STYLES
   Global resets, typography, form controls, buttons, tables,
   and utility rules used throughout the app.
   Depends on: tokens.css
   ============================================================= */

/* ── Reset / document ───────────────────────────────────────── */

html,
body {
  background-color: var(--bg-color);
}

body {
  font-family: 'Poppins', sans-serif;
  color: var(--text-color);
  padding: 8px 12px 16px;
  margin: 0;
  width: 100vw;
  min-height: 100vh;
  min-height: 100dvh; /* dynamic viewport — hides mobile browser chrome */
  overflow-x: hidden;
}

/* ── Typography ─────────────────────────────────────────────── */

h2 {
  font-size: 1.8rem;
  line-height: 1.4;
  margin-top: 0;
}

h3 {
  font-size: 1.4rem;
  line-height: 1.4;
}

/* Center all tab-section headings */
.tab-content > h2,
.tab-content > h1 {
  text-align: center;
  margin-left: auto;
  margin-right: auto;
  width: 100%;
}

/* ── Form controls ──────────────────────────────────────────── */

input,
select,
textarea {
  padding: 10px 14px;
  margin: 12px 0;
  width: 100%;
  box-sizing: border-box;
  border-radius: 10px;
  background: var(--surface-bg);
  border: 1px solid var(--border-color);
  color: var(--text-color);
  font-size: 16px;
  font-family: inherit;
  box-shadow: inset 0 1px 4px rgba(0, 0, 0, 0.18);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

input::placeholder,
textarea::placeholder {
  color: var(--text-muted);
}

.suggested-input::placeholder {
  font-style: italic;
}

input:focus,
select:focus,
textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(45, 125, 91, 0.22), inset 0 1px 4px rgba(0, 0, 0, 0.12);
}

.form-error {
  color: var(--danger);
  margin: 4px 0 0;
  min-height: 1.2em;
  font-size: 0.9rem;
}

/* ── Buttons ────────────────────────────────────────────────── */

button {
  padding: 10px 22px;
  margin: 12px 0;
  box-sizing: border-box;
  border-radius: 999px;
  background: linear-gradient(135deg, #38a870 0%, var(--primary) 55%, #245f47 100%);
  color: var(--text-color);
  border: none;
  cursor: pointer;
  font-size: 15px;
  box-shadow: var(--shadow);
  transition: background 0.25s ease, transform 0.2s ease, box-shadow 0.25s ease;
}

button:hover {
  background: linear-gradient(135deg, #42bf80 0%, #35956b 55%, #2d7d5b 100%);
  transform: translateY(-2px);
  box-shadow: 0 0 0 3px rgba(45, 125, 91, 0.28), 0 6px 20px rgba(45, 125, 91, 0.38);
}

button:active {
  transform: translateY(0);
  box-shadow: var(--shadow);
}

/* Add-to-log button disabled state */
#addLogBtn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

/* ── Loading button (spinner overlay) ───────────────────────── */

.loading-btn {
  position: relative;
  overflow: hidden;
  transition: background-color 0.3s ease;
}

.loading-btn.disabled,
.loading-btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.loading-btn .spinner {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 16px;
  height: 16px;
  margin-top: -8px;
  margin-left: -8px;
  border: 2px solid rgba(255, 255, 255, 0.5);
  border-top-color: var(--text-color);
  border-radius: 50%;
  animation: spin 1s linear infinite;
  display: none;
}

.loading-btn.loading .spinner {
  display: block;
}

.loading-btn.loading span {
  visibility: hidden;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* ── Tables ─────────────────────────────────────────────────── */

table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 20px;
  font-size: 14px;
  background: var(--card-bg);
  box-shadow: var(--shadow);
  color: var(--text-color);
}

th,
td {
  padding: 10px;
  border: 1px solid var(--border-color);
  text-align: center;
}

th {
  background-color: var(--surface-bg);
  color: var(--secondary-text);
}

/* ── Layout containers ──────────────────────────────────────── */

#appContainer {
  margin: 0;
  padding-top: calc(8px + env(safe-area-inset-top, 0px));
  padding-left: env(safe-area-inset-left, 0px);
  padding-right: env(safe-area-inset-right, 0px);
  padding-bottom: calc(80px + env(safe-area-inset-bottom, 0px));
}

/* Extra clearance when the focus bar is visible above the nav */
.workout-active #appContainer {
  padding-bottom: calc(128px + env(safe-area-inset-bottom, 0px));
}

#pocketFitContainer {
  width: 100vw;
  min-height: 100vh;
  min-height: 100dvh; /* dynamic viewport */
  overflow-x: hidden;
  transition: margin-left 0.3s ease;
  margin-left: 0;
}

#programBuilderContainer,
#programTabReactRoot {
  min-height: 60vh;
}

/* ── Section transitions ────────────────────────────────────── */
/*
 * IMPORTANT: do NOT use transform on .section/.section.active.
 * Any transform value (even scale(1)) creates a CSS stacking context
 * which traps position:fixed descendants (like #bottomNav, #moreDrawer)
 * and makes them position relative to the container instead of the viewport.
 * Fade with opacity only.
 */
.section {
  opacity: 0;
  transition: opacity 0.4s ease;
}

.section.active {
  opacity: 1;
}

.section.fade-out {
  opacity: 0;
}

/* ── Miscellaneous utilities ────────────────────────────────── */

#sidebarLogoutBtn {
  width: 100%;
  padding: 10px;
  background-color: var(--danger);
  color: var(--text-color);
  border: none;
  border-radius: 6px;
  box-shadow: var(--shadow);
  cursor: pointer;
  transition: background-color 0.3s ease;
}

#sidebarLogoutBtn:hover {
  background-color: #c82333;
}

#goBackBtn {
  margin-bottom: 20px;
  padding: 6px 12px;
  font-size: 14px;
  cursor: pointer;
  background-color: var(--primary);
  color: var(--text-color);
  border: none;
  border-radius: 4px;
  transition: background-color 0.3s ease;
}

#goBackBtn:hover {
  background-color: var(--primary-dark);
}

.slide-up {
  animation: slide-up 0.3s ease-out;
}

@keyframes slide-up {
  from { transform: translateY(20px); opacity: 0; }
  to   { transform: translateY(0);    opacity: 1; }
}

/* ── Native UI — Toast & Modal (native-ui.js) ─────────────────── */

/* Toast */
#nativeToast {
  position: fixed;
  bottom: 80px;          /* above bottom nav */
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  max-width: calc(100vw - 32px);
  min-width: 220px;
  background: #1c2e22;
  border: 1px solid var(--border, #2a3a2e);
  border-radius: 14px;
  padding: 12px 18px;
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.88rem;
  color: var(--text, #e8f5e9);
  z-index: 9999;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s, transform 0.25s;
  box-shadow: 0 4px 20px rgba(0,0,0,0.5);
}

#nativeToast.native-toast--show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
  pointer-events: auto;
}

.native-toast--success { border-color: var(--primary, #5fa87e); }
.native-toast--error   { border-color: #e05060; }
.native-toast--warn    { border-color: #e6a817; }

.nt-icon { font-size: 1rem; flex-shrink: 0; }
.nt-msg  { flex: 1; line-height: 1.4; }

/* Modal overlay */
.nm-overlay {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 10000;
  background: rgba(0,0,0,0.65);
  align-items: center;
  justify-content: center;
  padding: 24px;
  backdrop-filter: blur(2px);
}

.nm-dialog {
  background: var(--card-bg, #0f1510);
  border: 1px solid var(--border, #2a3a2e);
  border-radius: 18px;
  padding: 24px 20px 20px;
  width: 100%;
  max-width: 360px;
  box-shadow: 0 8px 32px rgba(0,0,0,0.6);
}

.nm-body {
  font-size: 0.95rem;
  color: var(--text, #e8f5e9);
  line-height: 1.5;
  margin: 0 0 20px;
  text-align: center;
}

.nm-input {
  width: 100%;
  padding: 11px 14px;
  border-radius: 10px;
  border: 1px solid var(--border, #2a3a2e);
  background: var(--bg, #0b130d);
  color: var(--text, #e8f5e9);
  font-size: 1rem;       /* ≥16px — no iOS auto-zoom */
  margin-bottom: 16px;
  box-sizing: border-box;
  outline: none;
}

.nm-input:focus { border-color: var(--primary, #5fa87e); }

.nm-actions {
  display: flex;
  gap: 10px;
}

.nm-btn {
  flex: 1;
  padding: 12px;
  border-radius: 12px;
  border: 1px solid var(--border, #2a3a2e);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s;
}

.nm-btn--cancel {
  background: transparent;
  color: var(--text-muted, #7a8f7d);
}

.nm-btn--confirm {
  background: var(--primary, #5fa87e);
  border-color: var(--primary, #5fa87e);
  color: #0b130d;
}

.nm-btn--danger {
  background: #e05060;
  border-color: #e05060;
  color: #fff;
}