/* ==========================================================================
   PT.GYM — CSS DESIGN SYSTEM (CLEAN EDITORIAL ARCHETYPE)
   Zero AI-Slop: Zero blobs, zero fake glass, zero 3-card metrics, zero hero fluff.
   ========================================================================== */

:root {
  --bg-dark: #111613;
  --surface-dark: #18201a;
  --text-primary: #121814;
  --text-secondary: #4d5d52;
  --text-tertiary: #839487;
  --accent: #d96b43; /* Warm poppy orange from reference photo */
  --accent-hover: #c45b34;
  --accent-subtle: #fbf0eb;
  --accent-border: #f0cbbe;
  --pine: #204835;
  --pine-light: #2b5f46;
  --pine-bg: #eaf2ed;
  --card-surface: rgba(255, 255, 255, 0.96);
  --border-card: rgba(255, 255, 255, 0.7);
  --border-subtle: #e2e8df;
  --border-strong: #cdd6c9;
  --font-main: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-pill: 9999px;
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
}

* { box-sizing: border-box; margin: 0; padding: 0; }

/* FULL-PAGE IMMERSIVE WALLPAPER (Bao trọn toàn nền, không kéo dãn, cố định khi cuộn) */
html { min-height: 100%; }

body {
  background-image: url('./assets/wallpapers/media_1789286588220.png');
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
  background-repeat: no-repeat;
  color: var(--text-primary);
  font-family: var(--font-main);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  position: relative;
}

/* Lớp phủ quang học làm dịu ánh sáng để đọc chữ chuẩn WCAG AAA */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background: linear-gradient(180deg, rgba(14, 20, 16, 0.35) 0%, rgba(14, 20, 16, 0.5) 100%);
  pointer-events: none;
  z-index: 0;
}

/* CHẾ ĐỘ KHÔNG ẢNH NỀN (STUDIO TỐI GIẢN) */
body.no-bg {
  background-image: none !important;
  background-color: #f4f7f4 !important;
}
body.no-bg::before { display: none !important; }
body.no-bg .hero-headline { color: var(--text-primary); text-shadow: none; }
body.no-bg .hero-kicker { color: var(--pine); }
body.no-bg .wallpaper-toolbar {
  background: #ffffff;
  border-color: var(--border-strong);
  box-shadow: 0 4px 16px rgba(0,0,0,0.06);
}
body.no-bg .wallpaper-label { color: var(--text-secondary); }
body.no-bg .wp-btn {
  background: #f0f4ee;
  color: var(--text-primary);
  border-color: var(--border-subtle);
}
body.no-bg .wp-btn:hover, body.no-bg .wp-btn.active {
  background: var(--text-primary);
  color: #ffffff;
  border-color: var(--text-primary);
}

/* APP HEADER */
.app-header {
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.4);
  position: sticky;
  top: 0;
  z-index: 40;
}

.header-inner {
  max-width: 1400px;
  margin: 0 auto;
  padding: 12px 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.brand-group {
  display: flex;
  align-items: center;
  gap: 14px;
}

.brand-logo {
  font-size: 16px;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
}

.brand-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
}

.brand-tag {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  color: var(--pine);
  background: var(--pine-bg);
  padding: 3px 8px;
  border-radius: 4px;
  letter-spacing: 0.04em;
}

.header-controls {
  display: flex;
  align-items: center;
  gap: 10px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  font-family: var(--font-main);
  font-size: 13px;
  font-weight: 600;
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.15s var(--ease);
  text-decoration: none;
  white-space: nowrap;
}

.btn-sm {
  padding: 5px 10px;
  font-size: 12px;
}

.btn-secondary {
  background: #ffffff;
  border-color: var(--border-strong);
  color: var(--text-primary);
}
.btn-secondary:hover { background: #f1f4ee; }

.btn-primary {
  background: var(--text-primary);
  color: #ffffff;
}
.btn-primary:hover { background: #222e25; }

.btn-accent {
  background: var(--accent);
  color: #ffffff;
}
.btn-accent:hover { background: var(--accent-hover); }

.sync-badge {
  display: flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-secondary);
  padding: 6px 10px;
  border-radius: var(--radius-pill);
  background: #f2f5f0;
  border: 1px solid var(--border-subtle);
  cursor: pointer;
}

.sync-pulse {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #2a9d8f;
}

/* WORKSPACE MAIN BODY */
.workspace {
  position: relative;
  z-index: 1;
  max-width: 1400px;
  width: 100%;
  margin: 0 auto;
  padding: 24px 28px 80px;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 22px;
}

/* TOP CONTROLS & STREAK BANNER */
.top-banner-grid {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 20px;
  align-items: center;
}

.hero-greeting { color: #ffffff; }

.hero-kicker {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: #e5ede7;
  margin-bottom: 4px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.hero-headline {
  font-size: 32px;
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.2;
  color: #ffffff;
  text-shadow: 0 2px 10px rgba(0,0,0,0.3);
}

/* WALLPAPER TOOLBAR */
.wallpaper-toolbar {
  background: rgba(17, 22, 19, 0.82);
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: var(--radius-md);
  padding: 8px 12px;
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.wallpaper-label {
  font-family: var(--font-mono);
  font-size: 11px;
  color: #b5c7b8;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.wp-btn {
  font-family: var(--font-main);
  font-size: 12px;
  font-weight: 600;
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(255, 255, 255, 0.2);
  background: rgba(255, 255, 255, 0.12);
  color: #ffffff;
  cursor: pointer;
  transition: all 0.15s var(--ease);
}

.wp-btn:hover, .wp-btn.active {
  background: #ffffff;
  color: var(--text-primary);
  border-color: #ffffff;
}

.wp-btn.upload {
  background: var(--accent);
  border-color: var(--accent);
  color: #ffffff;
}
.wp-btn.upload:hover { background: var(--accent-hover); }
#customBgInput { display: none; }

/* CHỨC NĂNG CHUỖI TẬP LUYỆN */
.streak-card {
  background: var(--card-surface);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-md);
  padding: 16px 22px;
  box-shadow: 0 6px 24px rgba(0,0,0,0.08);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
}

.streak-main {
  display: flex;
  align-items: center;
  gap: 16px;
}

.streak-fire-badge {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, #ffefe6 0%, #ffdacf 100%);
  border: 1px solid var(--accent-border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
}

.streak-details h3 {
  font-size: 18px;
  font-weight: 800;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 8px;
}

.streak-tag {
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 700;
  padding: 2px 6px;
  border-radius: 4px;
  background: var(--accent-subtle);
  color: var(--accent);
}

.streak-details p {
  font-size: 12px;
  color: var(--text-secondary);
}

.streak-dots-wrap {
  display: flex;
  align-items: center;
  gap: 8px;
}

.streak-dot {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--text-secondary);
}

.dot-circle {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  font-weight: 700;
  border: 1.5px solid var(--border-strong);
  background: #ffffff;
}

.dot-circle.done {
  background: var(--pine);
  border-color: var(--pine);
  color: #ffffff;
}

.dot-circle.today {
  background: var(--accent);
  border-color: var(--accent);
  color: #ffffff;
  box-shadow: 0 0 0 3px rgba(217, 107, 67, 0.25);
}

.streak-freeze-pill {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  color: #1d70b8;
  background: #eef6fc;
  border: 1px solid #c9e2f8;
  padding: 6px 12px;
  border-radius: var(--radius-pill);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

/* THANH ĐIỀU HƯỚNG TUẦN & VIEW SWITCHER */
.week-nav-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  background: var(--card-surface);
  padding: 12px 20px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-card);
  box-shadow: 0 4px 16px rgba(0,0,0,0.06);
}

.week-title-box {
  display: flex;
  align-items: center;
  gap: 14px;
}

.week-heading {
  font-size: 17px;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text-primary);
}

.week-range {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--text-secondary);
}

.nav-arrows {
  display: flex;
  gap: 4px;
}

.btn-icon {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-strong);
  background: #ffffff;
  color: var(--text-primary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  transition: all 0.15s;
}
.btn-icon:hover { background: #f0f4ee; }

/* VIEW SWITCH TABS (TUẦN vs THÁNG) */
.view-switch-tabs {
  display: flex;
  background: #edf2eb;
  padding: 3px;
  border-radius: var(--radius-sm);
  gap: 2px;
}

.view-btn {
  font-family: var(--font-main);
  font-size: 12px;
  font-weight: 700;
  padding: 6px 14px;
  border-radius: 6px;
  border: none;
  background: transparent;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.15s;
}

.view-btn.active {
  background: #ffffff;
  color: var(--text-primary);
  box-shadow: 0 2px 6px rgba(0,0,0,0.08);
}

/* DAY TABS (MON -> SUN) */
.day-tabs {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 8px;
  width: 100%;
}

.day-tab {
  background: var(--card-surface);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-md);
  padding: 12px 14px;
  text-align: left;
  cursor: pointer;
  transition: all 0.15s var(--ease);
  display: flex;
  flex-direction: column;
  gap: 4px;
  position: relative;
  box-shadow: 0 2px 8px rgba(0,0,0,0.04);
}

.day-tab:hover {
  border-color: var(--border-strong);
  transform: translateY(-1px);
}

.day-tab.active {
  border-color: var(--text-primary);
  background: #ffffff;
  box-shadow: 0 4px 16px rgba(17,22,19,0.08);
}

.day-tab.active::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: 14px;
  right: 14px;
  height: 3px;
  background: var(--accent);
  border-radius: 2px;
}

.day-tab-name {
  font-size: 13px;
  font-weight: 700;
  color: var(--text-primary);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.day-today-pill {
  font-size: 9px;
  font-weight: 800;
  letter-spacing: 0.03em;
  background: var(--accent);
  color: #ffffff;
  padding: 1px 6px;
  border-radius: 4px;
  text-transform: uppercase;
  display: inline-block;
}

.day-tab-key {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--text-tertiary);
  background: #f0f4ee;
  padding: 1px 5px;
  border-radius: 3px;
}

.exercise-top-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.btn-video-toggle {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-main);
  font-size: 12px;
  font-weight: 600;
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  background: var(--accent-subtle);
  color: var(--accent);
  border: 1px solid var(--accent-border);
  cursor: pointer;
  transition: all 0.15s;
}

.btn-video-toggle:hover {
  background: var(--accent);
  color: #ffffff;
}

.btn-icon-action {
  width: 32px;
  height: 32px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-strong);
  background: #ffffff;
  color: var(--text-secondary);
  cursor: pointer;
  font-size: 13px;
  transition: all 0.15s;
}

.btn-icon-action:hover {
  background: #f0f4ee;
  color: var(--text-primary);
  border-color: var(--text-primary);
}

.btn-icon-action.danger {
  color: #c2410c;
  border-color: #fed7aa;
}

.btn-icon-action.danger:hover {
  background: #fff1f2;
  color: #e11d48;
  border-color: #fda4af;
}

.chip-sec {
  padding: 4px 10px;
  font-size: 12px;
  border-radius: 6px;
}


.day-tab-split {
  font-size: 12px;
  color: var(--text-secondary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.day-tab-count {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  color: var(--pine);
}

/* WORKOUT VIEW CONTAINER */
.workout-layout {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 24px;
  align-items: flex-start;
}

/* EXERCISE LIST COLUMN */
.exercise-column {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.session-header-card {
  background: var(--card-surface);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-md);
  padding: 18px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  box-shadow: 0 4px 16px rgba(0,0,0,0.06);
}

.session-info h2 {
  font-size: 20px;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 4px;
}

.session-info p {
  font-size: 13px;
  color: var(--text-secondary);
}

.session-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

/* EXERCISE CARDS */
.exercise-card {
  background: var(--card-surface);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-md);
  padding: 20px 24px;
  transition: all 0.2s var(--ease);
  display: flex;
  flex-direction: column;
  gap: 14px;
  box-shadow: 0 4px 16px rgba(0,0,0,0.05);
}

.exercise-card:hover { border-color: var(--border-strong); }

.exercise-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
}

.exercise-title-wrap {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.exercise-index {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  color: var(--text-tertiary);
  text-transform: uppercase;
}

.exercise-name {
  font-size: 17px;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.01em;
}

.exercise-badges {
  display: flex;
  gap: 8px;
  margin-top: 2px;
}

.tag {
  font-size: 11px;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 4px;
}

.tag-muscle { background: #eef3ed; color: var(--pine); }
.tag-target { background: var(--accent-subtle); color: var(--accent); }
.tag-auto { background: #e8f3ff; color: #1d70b8; }

/* SETS INTERACTION ROW */
.sets-grid {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.set-chip {
  flex: 1;
  min-width: 80px;
  background: #f7f9f6;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 8px 10px;
  cursor: pointer;
  transition: all 0.15s;
  user-select: none;
  text-align: center;
}

.set-chip:hover {
  background: #edf3eb;
  border-color: var(--border-strong);
}

.set-chip.completed {
  background: var(--pine);
  border-color: var(--pine);
  color: #ffffff;
}

.set-chip.completed .set-label,
.set-chip.completed .set-specs {
  color: #ffffff;
}

.set-label {
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 600;
  color: var(--text-tertiary);
  text-transform: uppercase;
}

.set-specs {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  color: var(--text-primary);
}

.cue-box {
  background: #f8faf7;
  border-left: 3px solid var(--pine);
  padding: 8px 14px;
  font-size: 12px;
  color: var(--text-secondary);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

/* INLINE VIDEO COMPONENT */
.btn-video-toggle {
  font-family: var(--font-main);
  font-size: 12px;
  font-weight: 600;
  color: var(--accent);
  background: var(--accent-subtle);
  border: 1px solid var(--accent-border);
  padding: 6px 14px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: all 0.15s;
  white-space: nowrap;
}
.btn-video-toggle:hover { background: #f6ded5; }

.video-container {
  display: none;
  margin-top: 8px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: #000;
  position: relative;
  padding-top: 56.25%; /* 16:9 Aspect Ratio */
}

.video-container.open { display: block; }
.video-container iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

/* BẢNG XEM LỊCH THÁNG (MONTHLY CALENDAR GRID) */
.month-calendar-view {
  background: var(--card-surface);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-md);
  padding: 24px;
  box-shadow: 0 6px 24px rgba(0,0,0,0.08);
  display: none;
  flex-direction: column;
  gap: 20px;
}

.calendar-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border-subtle);
}

.calendar-title {
  font-size: 18px;
  font-weight: 800;
}

.calendar-legend {
  display: flex;
  gap: 16px;
  font-size: 12px;
  color: var(--text-secondary);
}

.legend-item {
  display: flex;
  align-items: center;
  gap: 6px;
}

.legend-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.calendar-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 8px;
}

.cal-day-name {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  text-align: center;
  color: var(--text-tertiary);
  padding: 6px 0;
  text-transform: uppercase;
}

.cal-cell {
  background: #ffffff;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  min-height: 86px;
  padding: 8px 10px;
  cursor: pointer;
  transition: all 0.15s;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.cal-cell:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0,0,0,0.06);
}

.cal-cell.today {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px rgba(217, 107, 67, 0.2);
}

.cal-cell.completed-day {
  background: #f4faf6;
  border-color: #c0deca;
}

.cal-cell-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.cal-date-num {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
}

.cal-check {
  color: var(--pine);
  font-weight: 800;
  font-size: 12px;
}

.cal-focus-tag {
  font-size: 11px;
  color: var(--text-secondary);
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.cal-volume-text {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--text-tertiary);
}

/* ĐỒNG HỒ ĐẾM NGƯỢC NGHỈ GIỮA HIỆP (FLOATING REST TIMER) */
.rest-timer-dock {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(16px);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-md);
  padding: 14px 18px;
  box-shadow: 0 12px 36px rgba(0,0,0,0.18);
  z-index: 90;
  display: flex;
  flex-direction: column;
  gap: 10px;
  min-width: 320px;
  transition: all 0.3s var(--ease);
}

.rest-timer-dock.collapsed {
  min-width: auto;
  padding: 8px 14px;
}

.timer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.timer-info-group {
  display: flex;
  align-items: center;
  gap: 10px;
}

.timer-icon { font-size: 20px; }

.timer-label {
  font-size: 11px;
  font-family: var(--font-mono);
  text-transform: uppercase;
  color: var(--text-tertiary);
  display: block;
}

.timer-display {
  font-family: var(--font-mono);
  font-size: 24px;
  font-weight: 800;
  color: var(--text-primary);
  line-height: 1;
}

.timer-display.running { color: var(--accent); }

.timer-progress-bar {
  width: 100%;
  height: 4px;
  background: #edf2eb;
  border-radius: 2px;
  overflow: hidden;
}

.timer-progress-fill {
  height: 100%;
  width: 100%;
  background: var(--accent);
  transition: width 1s linear;
}

.timer-presets {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.timer-preset-btn {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  background: #f0f4ee;
  border: 1px solid var(--border-subtle);
  border-radius: 4px;
  padding: 4px 8px;
  cursor: pointer;
  transition: all 0.15s;
}

.timer-preset-btn:hover, .timer-preset-btn.active {
  background: var(--text-primary);
  color: #ffffff;
  border-color: var(--text-primary);
}

.timer-actions {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
}

/* SIDEBAR: WORKOUT COMPANION */
.side-panel {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.panel-card {
  background: var(--card-surface);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-md);
  padding: 18px 20px;
  box-shadow: 0 4px 16px rgba(0,0,0,0.06);
}

.panel-card h3 {
  font-size: 14px;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.import-zone {
  border: 1.5px dashed var(--border-strong);
  border-radius: var(--radius-sm);
  padding: 16px;
  text-align: center;
  background: #fafcf9;
  cursor: pointer;
  transition: all 0.15s;
}
.import-zone:hover {
  border-color: var(--accent);
  background: var(--accent-subtle);
}

.shortcuts-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.shortcut-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 12px;
  color: var(--text-secondary);
}

.kbd {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  background: #f0f4ee;
  color: var(--text-primary);
  padding: 2px 6px;
  border-radius: 4px;
  border: 1px solid var(--border-strong);
}

/* MODALS */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(17, 22, 19, 0.7);
  backdrop-filter: blur(4px);
  z-index: 100;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.modal-overlay.open { display: flex; }

.modal-box {
  background: #ffffff;
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 600px;
  max-height: 90vh;
  overflow-y: auto;
  border: 1px solid var(--border-subtle);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-title {
  font-size: 18px;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.modal-close {
  background: none;
  border: none;
  font-size: 20px;
  cursor: pointer;
  color: var(--text-secondary);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-label {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-primary);
}

.input-text {
  width: 100%;
  padding: 10px 14px;
  font-family: var(--font-main);
  font-size: 13px;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  outline: none;
  transition: border-color 0.15s;
}
.input-text:focus { border-color: var(--accent); }

.auto-video-hint {
  background: #f0f7ff;
  border: 1px solid #cde4ff;
  border-radius: var(--radius-sm);
  padding: 10px 12px;
  font-size: 12px;
  color: #1e429f;
  line-height: 1.5;
}

/* TOAST NOTIFICATION */
.toast {
  position: fixed;
  bottom: 24px;
  left: 24px;
  background: var(--bg-dark);
  color: #ffffff;
  font-size: 13px;
  font-weight: 600;
  padding: 12px 20px;
  border-radius: var(--radius-sm);
  box-shadow: 0 8px 24px rgba(0,0,0,0.2);
  z-index: 200;
  transform: translateY(100px);
  opacity: 0;
  transition: all 0.3s var(--ease);
}
.toast.show {
  transform: translateY(0);
  opacity: 1;
}

/* RESPONSIVE DESIGN (Desktop 1440px -> Mobile 375px) */
@media (max-width: 1024px) {
  .workout-layout { grid-template-columns: 1fr; }
  .top-banner-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .header-inner { padding: 10px 14px; flex-wrap: wrap; }
  .brand-tag, .sync-badge span:last-child { display: none; }
  .header-controls .btn { padding: 6px 10px; font-size: 12px; }
  .hero-headline { font-size: 24px; }
  .day-tabs {
    display: flex;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
    padding-bottom: 6px;
    gap: 8px;
  }
  .day-tab { flex: 0 0 135px; scroll-snap-align: start; }
  .workspace { padding: 16px 14px 60px; }
  .wallpaper-toolbar { width: 100%; gap: 6px; padding: 8px 10px; }
  .wp-btn { font-size: 11px; padding: 4px 8px; }
  .rest-timer-dock {
    left: 16px;
    right: 16px;
    bottom: 16px;
    min-width: auto;
  }
  .calendar-grid { gap: 4px; }
  .cal-cell { min-height: 65px; padding: 4px; font-size: 11px; }
}

@media (max-width: 480px) {
  .streak-card { flex-direction: column; align-items: flex-start; }
  .sets-grid { display: grid; grid-template-columns: repeat(2, 1fr); }
}