/* =====================================================================
   English Flow — Gamified Tenses & Test Section (flow-tenses.css)
   Pure light theme. Duolingo-style bite-sized cards, 3D buttons,
   mascot reactions, and high-dopamine quiz dialog.
   ===================================================================== */

:root {
  --tp-ink: #3c3c3c;
  --tp-muted: #777777;
  --tp-line: #e5e5e5;
  --tp-bg: #ffffff;
  --tp-bg-subtle: #f8fafc;
}

body.tense-page {
  background: #ffffff;
  color: var(--tp-ink);
  font-family: var(--ff-font);
  -webkit-font-smoothing: antialiased;
}

.tense-page * {
  box-sizing: border-box;
}

/* ---------------- Hero Enhancements ---------------- */
.tp-hero {
  background: linear-gradient(180deg, #f0fff4 0%, #ffffff 100%) !important;
  padding: 50px 0 45px !important;
}
.tp-hero-art {
  display: flex;
  flex-direction: column;
  align-items: center;
  position: relative;
}
.tenses-hero-flo {
  width: 140px;
  filter: drop-shadow(0 12px 20px rgba(88, 204, 2, 0.25));
  margin-bottom: 12px;
}
.tp-hero-actions .tp-btn-main {
  background: var(--ff-green) !important;
  box-shadow: 0 5px 0 var(--ff-green-dark) !important;
  color: #ffffff !important;
  border-radius: 18px !important;
  font-weight: 900 !important;
  text-transform: uppercase !important;
  letter-spacing: 0.04em !important;
  padding: 16px 28px !important;
}
.tp-hero-actions .tp-btn-main:hover {
  filter: brightness(1.06) !important;
  transform: translateY(-2px) !important;
  box-shadow: 0 7px 0 var(--ff-green-dark) !important;
}
.tp-hero-actions .tp-btn-alt {
  border: 2px solid var(--ff-line) !important;
  box-shadow: 0 4px 0 var(--ff-line) !important;
  border-radius: 18px !important;
  font-weight: 900 !important;
  text-transform: uppercase !important;
  padding: 16px 24px !important;
}

/* ---------------- Timeline Summary Cards ---------------- */
.tp-timeline {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-bottom: 24px;
}
.tp-time-card {
  border: 2px solid var(--card-border) !important;
  box-shadow: 0 5px 0 var(--card-border) !important;
  border-radius: 22px !important;
  padding: 24px 20px !important;
  background: #ffffff !important;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.tp-time-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 0 var(--card-border) !important;
}
.tp-time-card h3 {
  font-size: 24px !important;
  font-weight: 900 !important;
  margin: 10px 0 6px !important;
  color: var(--card-accent) !important;
}
.tp-time-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 900;
  color: var(--card-accent) !important;
  margin-top: 14px;
  text-decoration: none;
}

/* ---------------- Progress Panel ---------------- */
.tp-progress-panel {
  background: #ffffff !important;
  border: 3px solid #d7ffb8 !important;
  box-shadow: 0 6px 0 #b4e78f, 0 16px 36px rgba(88, 204, 2, 0.08) !important;
  border-radius: 26px !important;
  padding: 28px !important;
  margin-bottom: 28px !important;
}
.tp-progress-panel h3 {
  font-size: 20px !important;
  font-weight: 900 !important;
  color: var(--tp-ink) !important;
}
.tp-bar {
  background: var(--ef-border) !important;
  height: 16px !important;
  border-radius: 20px !important;
  overflow: hidden !important;
  margin: 14px 0 !important;
}
.tp-bar i {
  background: var(--ff-green) !important;
  border-radius: 20px !important;
  height: 100% !important;
  display: block;
  transition: width 0.4s ease;
}
.tp-trophy {
  font-size: 54px !important;
}
.tp-reset {
  background: transparent !important;
  border: 1px solid var(--tp-line) !important;
  border-radius: 12px !important;
  padding: 6px 14px !important;
  color: var(--tp-muted) !important;
  font-weight: 800 !important;
  font-size: 11px !important;
  margin-top: 12px !important;
  cursor: pointer;
}
.tp-reset:hover {
  background: #fff0f0 !important;
  color: var(--ff-red) !important;
  border-color: #ffd0d0 !important;
}

/* ---------------- Filter Tabs ---------------- */
.tp-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 20px;
}
.tp-filters button {
  font-family: var(--ff-font) !important;
  font-weight: 900 !important;
  font-size: 13px !important;
  padding: 10px 18px !important;
  border-radius: 16px !important;
  border: 2px solid var(--tp-line) !important;
  background: #ffffff !important;
  color: var(--tp-ink) !important;
  box-shadow: 0 3px 0 var(--tp-line) !important;
  cursor: pointer;
  transition: all 0.12s ease;
}
.tp-filters button:hover {
  transform: translateY(-1px);
  background: #f7f9fa !important;
}
.tp-filters button.is-current {
  background: var(--ff-blue) !important;
  border-color: var(--ff-blue-dark) !important;
  color: #ffffff !important;
  box-shadow: 0 4px 0 var(--ff-blue-dark) !important;
  transform: translateY(-2px);
}
.tp-print-btn {
  margin-left: auto;
  color: var(--tp-muted) !important;
}

/* ---------------- De-Bulked 12 Tense Cards (Duolingo Style!) ---------------- */
.tp-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-bottom: 40px;
}

.tp-card {
  background: #ffffff !important;
  border: 2px solid var(--c1, #e5e5e5) !important;
  box-shadow: 0 5px 0 var(--c1, #cecece) !important;
  border-radius: 24px !important;
  padding: 24px !important;
  display: flex;
  flex-direction: column;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.tp-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 0 var(--c1, #cecece) !important;
}

.tp-card-top {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 12px;
}
.tp-card-emoji {
  font-size: 32px !important;
  line-height: 1;
}
.tp-card-tag {
  font-size: 10px !important;
  font-weight: 900 !important;
  letter-spacing: 1.2px !important;
  color: var(--c1, var(--ff-blue)) !important;
  display: block;
}
.tp-card h4 {
  font-size: 20px !important;
  font-weight: 900 !important;
  margin: 2px 0 0 !important;
  color: var(--tp-ink) !important;
}

.tp-listen {
  margin-left: auto;
  width: 40px;
  height: 40px;
  border-radius: 50% !important;
  background: #f0f7ff !important;
  border: 2px solid #bce0fd !important;
  color: var(--ff-blue) !important;
  font-size: 14px !important;
  display: grid;
  place-items: center;
  cursor: pointer;
  transition: all 0.1s ease;
}
.tp-listen:hover {
  background: var(--ff-blue) !important;
  color: #ffffff !important;
  transform: scale(1.1);
}

/* Formula badge */
.tp-formula {
  background: #f8fafc;
  border: 2px solid var(--tp-line);
  padding: 10px 14px;
  border-radius: 14px;
  font-size: 13px;
  font-weight: 800;
  color: var(--tp-ink);
  margin: 6px 0 12px;
}
.tp-formula b {
  color: var(--c1, var(--ff-blue));
}

.tp-use {
  font-size: 14px;
  color: var(--tp-muted);
  font-weight: 600;
  margin: 0 0 10px;
  line-height: 1.4;
}

/* Example quote */
.tp-example {
  background: #fffded;
  border: 1px solid #ffe89e;
  padding: 12px 14px;
  border-radius: 14px;
  font-size: 14px;
  font-weight: 800;
  color: #644a00;
  margin: 0 0 14px;
  font-style: italic;
}

/* Forms & Signals (Bite-sized micro badges) */
.tp-forms {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  font-size: 12px;
  margin-bottom: 12px;
}
.tp-forms > div {
  background: #f8fafc;
  border: 1px solid var(--tp-line);
  border-radius: 12px;
  padding: 8px 10px;
}
.tp-forms p {
  margin: 0;
  font-size: 12px;
  font-weight: 700;
  color: var(--tp-ink);
}
.tp-signals {
  font-size: 11px;
  color: var(--tp-muted);
  font-weight: 700;
  background: #f8fafc;
  padding: 6px 10px;
  border-radius: 10px;
  margin: 0 0 16px;
}
.tp-signals b {
  color: var(--c1, var(--tp-ink));
  margin-right: 6px;
}

/* Card footer with 3D practice button */
.tp-card-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: auto;
  padding-top: 14px;
  border-top: 1px solid var(--tp-line);
}
.tp-status {
  font-size: 12px;
  font-weight: 800;
  color: var(--tp-muted);
}
.tp-status.done {
  color: var(--ff-green-dark);
  font-weight: 900;
}

.tp-practice {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--c1, var(--ff-green)) !important;
  box-shadow: 0 4px 0 rgba(0, 0, 0, 0.15) !important;
  color: #ffffff !important;
  font-family: var(--ff-font) !important;
  font-size: 13px !important;
  font-weight: 900 !important;
  text-transform: uppercase !important;
  letter-spacing: 0.04em !important;
  padding: 10px 18px !important;
  border: none !important;
  border-radius: 14px !important;
  cursor: pointer;
  transition: transform 0.08s ease, box-shadow 0.08s ease;
}
.tp-practice:hover {
  filter: brightness(1.08);
  transform: translateY(-2px);
}
.tp-practice:active {
  transform: translateY(2px);
  box-shadow: 0 1px 0 rgba(0, 0, 0, 0.15) !important;
}

/* ---------------- Practice Set Dialog (Duolingo Style!) ---------------- */
#tp-dialog {
  border: none !important;
  padding: 0 !important;
  border-radius: 28px !important;
  background: #ffffff !important;
  color: var(--tp-ink) !important;
  width: min(760px, calc(100% - 32px)) !important;
  max-height: calc(100vh - 48px) !important;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.22) !important;
  position: fixed;
  inset: 0;
  margin: auto;
  overflow: hidden;
}
#tp-dialog::backdrop {
  background: rgba(0, 0, 0, 0.45);
  backdrop-filter: blur(8px);
}

.tp-dialog-card {
  display: flex;
  flex-direction: column;
  min-height: 540px;
}

.tp-dialog-head {
  padding: 20px 28px !important;
  border-bottom: 2px solid var(--tp-line) !important;
  background: #ffffff !important;
  position: relative;
}
.tp-dialog-head small {
  font-size: 11px !important;
  font-weight: 900 !important;
  letter-spacing: 1.2px !important;
  color: var(--ff-blue) !important;
  text-transform: uppercase !important;
}
.tp-dialog-head h2 {
  font-size: 24px !important;
  font-weight: 900 !important;
  margin: 4px 0 10px !important;
  color: var(--tp-ink) !important;
}
.tp-dialog-close {
  position: absolute;
  top: 18px;
  right: 22px;
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: transparent;
  border: none;
  font-size: 28px;
  font-weight: 900;
  color: var(--tp-muted);
  cursor: pointer;
  display: grid;
  place-items: center;
}
.tp-dialog-close:hover {
  background: #f1f3f5;
  color: var(--tp-ink);
}

.tp-dialog-pips {
  display: flex;
  gap: 8px;
  margin-top: 8px;
}
.tp-dialog-pips i {
  flex: 1;
  height: 8px;
  border-radius: 10px;
  background: var(--tp-line);
  transition: background 0.25s ease;
}
.tp-dialog-pips i.on {
  background: var(--ff-green);
}
.tp-dialog-pips i.miss {
  background: var(--ff-red);
}

/* Quiz Stage Body */
.tp-dialog-body {
  padding: 24px 32px 32px !important;
  flex: 1;
  overflow-y: auto;
}
.tp-quiz-head {
  display: flex;
  justify-content: space-between;
  font-size: 12px;
  font-weight: 900;
  color: var(--tp-muted);
  margin-bottom: 8px;
}
.tp-quiz-bar {
  background: var(--tp-line) !important;
  height: 12px !important;
  border-radius: 20px !important;
  overflow: hidden !important;
  margin-bottom: 20px !important;
}
.tp-quiz-bar i {
  background: var(--ff-green) !important;
  border-radius: 20px !important;
  height: 100% !important;
  display: block;
}

.tp-prompt {
  font-size: 22px !important;
  font-weight: 900 !important;
  color: var(--tp-ink) !important;
  line-height: 1.35 !important;
  margin-bottom: 22px !important;
}

/* MCQ Options (Big Duolingo-style cards) */
.tp-options {
  display: grid;
  gap: 12px;
  margin-bottom: 20px;
}
.tp-option {
  display: flex !important;
  align-items: center !important;
  gap: 14px !important;
  width: 100% !important;
  padding: 14px 18px !important;
  border-radius: 18px !important;
  border: 2px solid var(--tp-line) !important;
  box-shadow: 0 4px 0 var(--tp-line) !important;
  background: #ffffff !important;
  color: var(--tp-ink) !important;
  font-family: var(--ff-font) !important;
  font-size: 16px !important;
  font-weight: 800 !important;
  cursor: pointer;
  text-align: left !important;
  transition: all 0.1s ease;
}
.tp-option b {
  display: grid !important;
  place-items: center !important;
  width: 32px !important;
  height: 32px !important;
  border-radius: 10px !important;
  border: 2px solid var(--tp-line) !important;
  font-size: 13px !important;
  font-weight: 900 !important;
  color: var(--tp-muted) !important;
  flex-shrink: 0;
}
.tp-option:hover {
  background: #f8fafc !important;
  transform: translateY(-1px);
}
.tp-option.is-picked {
  background: var(--ef-blue-light) !important;
  border-color: var(--ef-blue) !important;
  box-shadow: 0 4px 0 var(--ef-blue-shadow) !important;
  color: var(--ef-blue-shadow) !important;
}
.tp-option.is-picked b {
  background: var(--ef-blue) !important;
  border-color: var(--ef-blue) !important;
  color: #ffffff !important;
}
.tp-option.is-right {
  background: var(--ef-green-bg) !important;
  border-color: var(--ff-green) !important;
  box-shadow: 0 4px 0 var(--ff-green-dark) !important;
  color: var(--ff-green-dark) !important;
}
.tp-option.is-right b {
  background: var(--ff-green) !important;
  border-color: var(--ff-green) !important;
  color: #ffffff !important;
}
.tp-option.is-wrong {
  background: var(--ef-red-bg) !important;
  border-color: var(--ff-red) !important;
  box-shadow: 0 4px 0 var(--ff-red-dark) !important;
  color: var(--ff-red-dark) !important;
  animation: opt-shake 0.4s ease-in-out;
}
.tp-option.is-wrong b {
  background: var(--ff-red) !important;
  border-color: var(--ff-red) !important;
  color: #ffffff !important;
}

/* Type in the blank */
.tp-type input {
  width: 100%;
  padding: 14px 18px;
  font-family: var(--ff-font);
  font-size: 17px;
  font-weight: 800;
  border: 2px solid var(--tp-line);
  box-shadow: 0 3px 0 var(--tp-line);
  border-radius: 16px;
  outline: none;
  color: var(--tp-ink);
}
.tp-type input:focus {
  border-color: var(--ff-blue);
  box-shadow: 0 3px 0 var(--ff-blue-dark);
}

/* Feedback message */
.tp-feedback {
  font-size: 14px !important;
  font-weight: 800 !important;
  margin: 14px 0 !important;
  padding: 10px 14px !important;
  border-radius: 12px !important;
  color: var(--tp-muted) !important;
}
.tp-feedback.good {
  background: var(--ef-green-bg) !important;
  color: var(--ff-green-dark) !important;
}
.tp-feedback.bad {
  background: var(--ef-red-bg) !important;
  color: var(--ff-red-dark) !important;
}

/* Quiz footer with big 3D button */
.tp-quiz-foot {
  display: flex !important;
  align-items: center !important;
  justify-content: space-between !important;
  gap: 16px !important;
  padding-top: 18px !important;
  border-top: 2px solid var(--tp-line) !important;
}
.tp-quiz-foot span {
  font-size: 12px !important;
  font-weight: 700 !important;
  color: var(--tp-muted) !important;
}

.tp-next {
  background: var(--ff-green) !important;
  box-shadow: 0 4px 0 var(--ff-green-dark) !important;
  color: #ffffff !important;
  font-family: var(--ff-font) !important;
  font-size: 15px !important;
  font-weight: 900 !important;
  text-transform: uppercase !important;
  letter-spacing: 0.05em !important;
  padding: 14px 28px !important;
  border: none !important;
  border-radius: 16px !important;
  cursor: pointer;
  transition: all 0.1s ease;
}
.tp-next:hover:not(:disabled) {
  filter: brightness(1.06);
  transform: translateY(-2px);
  box-shadow: 0 6px 0 var(--ff-green-dark) !important;
}
.tp-next:active:not(:disabled) {
  transform: translateY(3px);
  box-shadow: 0 1px 0 var(--ff-green-dark) !important;
}
.tp-next:disabled {
  background: #e5e5e5 !important;
  box-shadow: 0 4px 0 #cfcfcf !important;
  color: #afafaf !important;
  cursor: not-allowed;
  transform: none !important;
}

/* ---------------- Mixed Challenge Card (Boss Mode) ---------------- */
.tp-quiz-card {
  background: #ffffff !important;
  border: 3px solid #ffdfe0 !important;
  box-shadow: 0 6px 0 #ffc4c6, 0 16px 36px rgba(255, 75, 75, 0.1) !important;
  border-radius: 28px !important;
  padding: 32px !important;
}
.tp-score-card {
  background: #ffffff !important;
  border: 2px solid var(--tp-line) !important;
  box-shadow: 0 4px 0 var(--tp-line) !important;
  border-radius: 20px !important;
  padding: 16px 20px !important;
}

/* ---------------- Responsive & Android Optimization ---------------- */
html, body.tense-page {
  overflow-x: clip !important;
  max-width: 100vw !important;
  width: 100% !important;
}

@media (max-width: 900px) {
  .tp-timeline {
    grid-template-columns: 1fr;
  }
  .tp-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 600px) {
  .tp-blob {
    display: none !important;
  }
  .tp-hero {
    padding: 32px 0 28px !important;
    overflow: hidden !important;
  }
  .tp-hero-copy {
    min-width: 0 !important;
    width: 100% !important;
    max-width: 330px !important;
    margin: 0 auto !important;
    padding: 0 4px !important;
    text-align: center !important;
    box-sizing: border-box !important;
  }
  .tp-hero-copy .tp-badge {
    margin-inline: auto !important;
  }
  .tp-hero h1 {
    font-size: clamp(22px, 6vw, 32px) !important;
    line-height: 1.15 !important;
    text-align: center !important;
  }
  .tp-hero-lead {
    font-size: 13.5px !important;
    line-height: 1.55 !important;
    width: 100% !important;
    max-width: 100% !important;
    text-align: center !important;
  }
  .tp-stats {
    display: grid !important;
    grid-template-columns: repeat(2, 1fr) !important;
    gap: 8px !important;
    width: 100% !important;
    max-width: 320px !important;
    margin: 20px auto 0 !important;
    box-sizing: border-box !important;
  }
  .tp-stats span {
    display: flex !important;
    flex-direction: column !important;
    align-items: center !important;
    justify-content: center !important;
    text-align: center !important;
    font-size: 11px !important;
    padding: 8px 6px !important;
    border-radius: 14px !important;
    box-sizing: border-box !important;
    background: #f7fafc !important;
    border: 1.5px solid var(--tp-line) !important;
  }
  .tp-stats span b {
    font-size: 16px !important;
    margin-bottom: 2px !important;
    color: var(--ff-green-dark) !important;
  }
  .tp-mini {
    transform: none !important;
    width: 100% !important;
    max-width: 100% !important;
  }
  .tp-hero-art {
    width: 100% !important;
    max-width: 100% !important;
    overflow: hidden !important;
  }
  .tenses-hero-flo {
    width: 96px !important;
  }
  .tp-hero-actions {
    flex-direction: column !important;
    gap: 12px !important;
    width: 100% !important;
  }
  .tp-hero-actions .tp-btn {
    width: 100% !important;
    justify-content: center !important;
  }
  .tp-filters {
    display: flex !important;
    flex-wrap: wrap !important;
    gap: 6px !important;
    justify-content: center !important;
  }
  .tp-filter {
    padding: 7px 12px !important;
    font-size: 12px !important;
  }
  .tp-dialog {
    width: calc(100% - 16px) !important;
    max-width: 100% !important;
    margin: 10px auto !important;
    padding: 20px 14px !important;
    max-height: 95vh !important;
    border-radius: 20px !important;
  }
  .tp-quiz-options button {
    padding: 12px 14px !important;
    font-size: 14px !important;
  }
  .tp-challenge {
    padding: 20px 16px !important;
  }
}