/**
 * ============================================================
 * SPELLING TRAINER – UNIFIED STYLESHEET
 * ============================================================
 * Combines global styles and blending‑view styles.
 * No duplicate variables or rules – everything is centralised.
 */

/* ---------- CSS CUSTOM PROPERTIES (single source of truth) ---------- */
:root {
  --bg-body: #fef7e8;
  --bg-app: #fffef7;
  --bg-card: #ffffff;
  --bg-soft: #f9f5e8;
  --bg-hover: #f2f7eb;
  --border-light: #e7dfca;
  --border-medium: #d9d0bc;
  --accent: #9bbc7b;
  --accent-dark: #7aa86a;
  --accent-deep: #5a8a4a;
  --text-dark: #2d3e2b;
  --text-soft: #5e6c47;
  --shadow-sm: 0 4px 12px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 8px 20px rgba(0, 0, 0, 0.08);
  --shadow-hover: 0 12px 24px rgba(0, 0, 0, 0.12);
  --radius-card: 28px;
  --radius-btn: 40px;
  --transition: 0.2s ease;
  --transition-smooth: 0.25s cubic-bezier(0.2, 0.9, 0.4, 1.1);
}

/* ---------- GLOBAL RESET & BASE ---------- */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  background: linear-gradient(145deg, #fef7e8 0%, #fef2df 100%);
  font-family: 'Amiri', 'Tajawal', 'Segoe UI', 'Roboto', system-ui, sans-serif;
  color: var(--text-dark);
  padding: 1.5rem;
  line-height: 1.5;
  min-height: 100vh;
}

/* ---------- MAIN CONTAINER (shared) ---------- */
.app-container {
  max-width: 1400px;
  margin: 0 auto;
  background: var(--bg-app);
  border-radius: 48px;
  box-shadow: var(--shadow-md);
  overflow: hidden;
  padding: 1.5rem 2rem 2.5rem;
  transition: all var(--transition);
}

@media (max-width: 768px) {
  body {
    padding: 0.75rem;
  }
  .app-container {
    padding: 1rem 1.25rem 1.8rem;
    border-radius: 32px;
  }
}

/* ---------- HEADER & CONTROLS (global) ---------- */
.controls-bar {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  background: #f3efe3;
  padding: 0.8rem 1.5rem;
  border-radius: 60px;
  margin-bottom: 2rem;
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.5);
}

.speed-group,
.auto-group {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  background: white;
  padding: 0.4rem 1rem;
  border-radius: 40px;
  box-shadow: var(--shadow-sm);
}

.auto-group {
  border: 1px solid #dfe8d7;
  background: #f6fbf3;
}

.speed-group {
  opacity: 0.85;
}

.speed-group span,
.auto-group span {
  font-size: 1rem;
  font-weight: 500;
  color: #4a6741;
}

.speed-btn {
  background: #e9e3d3;
  border: none;
  font-size: 1.1rem;
  font-weight: bold;
  padding: 0.3rem 1rem;
  border-radius: 40px;
  cursor: pointer;
  font-family: inherit;
  transition: 0.1s linear;
  color: #2c5a2a;
}

.speed-btn.active {
  background: #9bbc7b;
  color: #1e3a1c;
  box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.1);
  transform: scale(1.05);
}

/* Unified toggle switch (from main) */
.toggle-switch {
  background: #d9d0bc;
  width: 52px;
  height: 28px;
  border-radius: 30px;
  display: inline-block;
  position: relative;
  cursor: pointer;
  transition: 0.2s;
}

.toggle-switch::after {
  content: "";
  width: 24px;
  height: 24px;
  background: white;
  border-radius: 50%;
  position: absolute;
  top: 2px;
  right: 3px;
  transition: transform 0.2s;
}

.toggle-switch.active {
  background: var(--accent-dark);
}

.toggle-switch.active::after {
  transform: translateX(-22px);
}

/* ---------- TYPOGRAPHY ---------- */
h1,
h2 {
  font-weight: 600;
  letter-spacing: -0.3px;
  color: #3c5e34;
}

h1 {
  font-size: clamp(1.8rem, 5vw, 2.4rem);
  margin-bottom: 1rem;
  text-align: center;
}

/* ---------- BUTTONS (global) ---------- */
.btn-primary {
  background-color: var(--accent);
  border: none;
  padding: 0.9rem 2rem;
  font-size: 1.3rem;
  border-radius: 60px;
  color: white;
  font-weight: bold;
  cursor: pointer;
  transition: 0.1s linear;
  font-family: inherit;
  box-shadow: var(--shadow-sm);
}

.btn-primary:active {
  transform: scale(0.97);
  background-color: #7eaa5e;
}

.hidden {
  display: none;
}

@media (max-width: 820px) {
  .controls-bar {
    display: flex;
    flex-wrap: nowrap;
    justify-content: space-between;
    align-items: center;
    gap: 0.6rem;
    padding: 0.6rem 0.8rem;
    border-radius: 40px;
  }

  /* Keep items inline and compact */
  .controls-bar > * {
    width: auto;
    flex: 1;
    display: flex;
    justify-content: center;
  }

  /* Back button smaller and inline */
  #globalBackBtn {
    order: 0;
    flex: 0 0 auto;
    padding: 0.5rem 1rem;
    font-size: 0.9rem;
  }

  /* Speed + autoplay groups tighter */
  .speed-group,
  .auto-group {
    padding: 0.3rem 0.6rem;
    gap: 0.4rem;
  }

  .speed-group span,
  .auto-group span {
    font-size: 0.85rem;
  }

  .speed-btn {
    font-size: 0.9rem;
    padding: 0.2rem 0.6rem;
  }

  .toggle-switch {
    transform: scale(0.9);
  }
}

@media (max-width: 480px) {
  .speed-group,
  .auto-group {
    flex-wrap: wrap;
    justify-content: center;
    overflow-x: auto;
  }

  .speed-btn {
    padding: 0.3rem 0.6rem;
    font-size: 0.9rem;
  }

  .toggle-switch {
    width: 44px;
    height: 24px;
  }

  .toggle-switch::after {
    width: 20px;
    height: 20px;
  }
  
  .nav-buttons {
    gap: 0.6rem;
  }

  .nav-buttons .nav-btn,
  .nav-buttons .btn-primary {
    font-size: 0.95rem;
    padding: 0.7rem 0.9rem;
  }
}


/* Sticky header with backdrop blur */
.controls-bar.sticky-header {
  position: sticky;
  top: 0;
  z-index: 100;
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  background: rgba(243, 239, 227, 0.92);
  border-radius: 60px;
  margin-bottom: 1.5rem;
  transition: all 0.25s ease;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
}

/* Fade transition between pages */
.main-view {
  transition: opacity 0.2s ease-in-out;
  opacity: 1;
}

.main-view.fade-out {
  opacity: 0;
}

/* Unified smart back button */
.nav-btn.smart-back {
  background: #e9e2d2;
  padding: 0.6rem 1.4rem;
  border-radius: 40px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  border: none;
  font-family: inherit;
  opacity: 0.9;
}

.nav-btn.smart-back:hover {
  background: #c9bfa6;
  transform: translateY(-2px);
}

/* Hide any duplicate local controls */
.page-local-controls {
  display: none !important;
}

/* Ensure global controls always visible */
.app-container > .controls-bar {
  display: flex !important;
}

/* Smooth scroll behavior */
html {
  scroll-behavior: smooth;
}

/* ---------- ACTION BUTTONS (mobile fix) ---------- */
@media (max-width: 820px) {
  .nav-buttons {
    display: grid;
    grid-template-columns: 1fr;
    gap: 0.8rem;
    width: 100%;
  }

  .nav-buttons .nav-btn,
  .nav-buttons .btn-primary {
    width: 100%;
    justify-content: center;
    font-size: 1.05rem;
    padding: 0.8rem 1rem;
  }

  /* Ensure "استمع إلى الحرف" sits alone on its own row */
  .nav-buttons .btn-primary {
    order: 3;
    margin-top: 0.3rem;
  }
}
/* Controls bar group flex balance */
.controls-bar > *:not(#globalBackBtn) {
  flex: 1;
}

/* Premium feel: subtle hover for groups */
.speed-group:hover,
.auto-group:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-1px);
}

/* ---------- RESPONSIVE HEADER COMPONENT ---------- */
#globalControlsBar {
  position: sticky;
  top: 0;
  z-index: 130;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 12px 16px;
  margin-bottom: 16px;
  background: rgba(247, 244, 235, 0.95);
  border: 1px solid #e4dbc7;
  border-radius: 22px;
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.04);
  transition: box-shadow 0.2s ease, border-color 0.2s ease;
}

#globalControlsBar.scrolled {
  border-color: #d8ceb7;
  box-shadow: 0 8px 20px rgba(41, 50, 32, 0.14);
}

#globalControlsBar .header-right,
#globalControlsBar .header-left {
  display: flex;
  align-items: center;
  gap: 8px;
}

#globalControlsBar .header-right {
  flex: 0 0 auto;
}

#globalControlsBar .header-left {
  flex: 1 1 auto;
  justify-content: flex-start;
  min-width: 0;
}

#globalControlsBar .header-controls-inline {
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 0;
  margin-inline-start: auto;
}

#globalControlsBar .header-nav-btn,
#globalControlsBar .header-control-btn,
#globalControlsBar .gender-btn,
#globalControlsBar .speed-btn,
#globalControlsBar .header-more-btn,
#globalControlsBar .header-speed-select {
  min-height: 44px;
  min-width: 44px;
  border-radius: 14px;
  border: 1px solid #d9cfb8;
  background: #fffdf7;
  color: #2f3f2f;
  font-family: inherit;
}

#globalControlsBar .header-nav-btn,
#globalControlsBar .header-control-btn,
#globalControlsBar .gender-btn,
#globalControlsBar .speed-btn,
#globalControlsBar .header-more-btn {
  cursor: pointer;
  transition: background-color 0.18s ease, border-color 0.18s ease, transform 0.18s ease, color 0.18s ease;
}

#globalControlsBar button:focus-visible,
#globalControlsBar select:focus-visible {
  outline: 3px solid #4f9152;
  outline-offset: 2px;
}

#globalControlsBar .header-nav-btn:hover,
#globalControlsBar .header-control-btn:hover,
#globalControlsBar .gender-btn:hover,
#globalControlsBar .speed-btn:hover,
#globalControlsBar .header-more-btn:hover {
  border-color: #c2b89f;
  background: #f7f2e5;
}

#globalControlsBar .header-nav-btn:active,
#globalControlsBar .header-control-btn:active,
#globalControlsBar .gender-btn:active,
#globalControlsBar .speed-btn:active,
#globalControlsBar .header-more-btn:active {
  transform: translateY(1px);
}

#globalControlsBar .header-nav-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 0 14px;
  font-size: 1.02rem;
  font-weight: 700;
}

#globalControlsBar .header-nav-btn svg {
  width: 24px;
  height: 24px;
}

#globalControlsBar .header-nav-label {
  white-space: nowrap;
}

#globalBackBtn svg {
  transform: scaleX(-1);
}

#globalControlsBar .header-control-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 0 12px;
  font-weight: 700;
  white-space: nowrap;
}

#globalControlsBar .header-control-btn .icon-play,
#globalControlsBar .header-control-btn .icon-pause {
  font-size: 1.2rem;
  line-height: 1;
}

#globalControlsBar .header-control-btn .icon-pause {
  display: none;
}

#globalControlsBar .header-control-btn.active {
  background: #e7f4df;
  border-color: #9fca88;
  color: #245a27;
}

#globalControlsBar .header-control-btn.active .icon-play {
  display: none;
}

#globalControlsBar .header-control-btn.active .icon-pause {
  display: inline;
}

#globalControlsBar .header-gender,
#globalControlsBar .header-speed {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px;
  border: 1px solid #d9cfb8;
  border-radius: 14px;
  background: #fffdf8;
}

#globalControlsBar .gender-btn,
#globalControlsBar .speed-btn {
  padding: 0 10px;
  font-weight: 700;
  border-radius: 10px;
}

#globalControlsBar .gender-btn {
  font-size: 1.45rem;
  line-height: 1;
}

#globalControlsBar .speed-btn {
  font-size: 1rem;
}

#globalControlsBar .speed-indicator {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 10px;
  border: 1px solid #d9cfb8;
  background: #f7f2e5;
  color: #4a6347;
}

#globalControlsBar .speed-indicator svg {
  width: 20px;
  height: 20px;
}

#globalControlsBar .gender-btn.active {
  color: #fff;
  border-color: transparent;
}

#globalControlsBar .gender-btn[data-gender="female"].active {
  background: #b83f7f;
}

#globalControlsBar .gender-btn[data-gender="male"].active {
  background: #2f67c8;
}

#globalControlsBar .speed-btn.active {
  background: #83b36f;
  color: #fff;
  border-color: transparent;
  transform: none;
}

#globalControlsBar .header-more-wrap {
  position: relative;
  display: none;
}

#globalControlsBar .header-more-btn {
  width: 48px;
  min-width: 48px;
  min-height: 48px;
  font-size: 1.45rem;
  line-height: 1;
}

#globalControlsBar .header-more-menu {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  left: auto;
  min-width: 260px;
  padding: 10px;
  border: 1px solid #d8ceb7;
  border-radius: 14px;
  background: #fffef9;
  box-shadow: 0 10px 28px rgba(0, 0, 0, 0.14);
  display: grid;
  gap: 8px;
}

#globalControlsBar .header-more-menu.hidden {
  display: none;
}

#globalControlsBar .header-more-group {
  display: grid;
  gap: 6px;
}

#globalControlsBar .header-more-title {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.92rem;
  color: #566e54;
  font-weight: 700;
}

#globalControlsBar .header-speed-select {
  width: 100%;
  padding: 0 2.4rem 0 12px;
  font-size: 0.98rem;
  font-weight: 700;
  line-height: 1;
  -webkit-appearance: none;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%23566e54' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  background-size: 14px 14px;
}

@media (max-width: 900px) {
  #globalControlsBar {
    padding: 10px;
    border-radius: 16px;
  }

  #globalControlsBar .header-nav-label {
    display: none;
  }
}

@media (max-width: 820px) {
  #globalControlsBar {
    flex-wrap: nowrap;
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
  }

  #globalControlsBar .header-controls-inline {
    display: none;
  }

  #globalControlsBar .header-more-wrap {
    display: block;
    margin-inline-start: 0;
  }

  #globalControlsBar .header-right {
    flex: 0 0 auto;
    gap: 6px;
  }

  #globalControlsBar .header-left {
    flex: 0 0 auto;
    min-width: auto;
  }

  #globalControlsBar .header-nav-btn {
    padding: 0 10px;
  }

  #globalControlsBar .header-speed-select {
    min-height: 48px;
    font-size: 1rem;
    padding-inline-end: 2.6rem;
    background-position: right 14px center;
    background-size: 16px 16px;
  }

  #globalControlsBar .header-more-menu {
    left: 0;
    right: auto;
    min-width: 240px;
    max-width: min(92vw, 300px);
  }
}

@media (min-width: 821px) {
  #globalControlsBar .header-more-wrap {
    display: none;
  }
}