/* ================================================================
   ANIM-EXPLAINER.CSS — Animated Grammar Explainers
   Soft modern "cinema" player that plays before each rule.
   Loaded after theme-modern.css so it inherits its tokens.
   ================================================================ */

/* ── PLAYER SHELL ── */
.ax-player {
  margin: 1.1rem 1.1rem 0;
  border: 1px solid var(--border, rgba(15,23,42,0.08));
  border-radius: var(--r-lg, 18px);
  background: var(--surface, #FFFFFF);
  box-shadow: var(--sh-sm, 0 4px 12px rgba(15,23,42,0.06));
  overflow: hidden;
}

.ax-head {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.6rem 1rem;
  background: var(--primary-tint, #EEF2FF);
  border-bottom: 1px solid var(--border, rgba(15,23,42,0.08));
  font-weight: 800;
  font-size: 0.85rem;
  color: var(--primary-deep, #4F46E5);
}

.ax-head-en {
  font-family: var(--ff-en, 'Outfit', sans-serif);
  font-size: 0.62rem;
  letter-spacing: 0.12em;
  opacity: 0.65;
}

.ax-head-count {
  margin-inline-start: auto;
  font-family: var(--ff-en, 'Outfit', sans-serif);
  font-size: 0.72rem;
  font-weight: 700;
  direction: ltr;
}

/* ── SCREEN (dark cinema area) ── */
.ax-screen {
  position: relative;
  min-height: clamp(250px, 38vw, 330px);
  background:
    radial-gradient(circle at 20% 15%, rgba(99,102,241,0.20), transparent 45%),
    radial-gradient(circle at 85% 85%, rgba(59,130,246,0.16), transparent 45%),
    linear-gradient(150deg, #0F172A 0%, #1E1B4B 100%);
  color: #EDF0FA;
  cursor: pointer;
  overflow: hidden;
}

.ax-scene {
  position: absolute;
  inset: 0;
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.85rem;
  padding: 1.4rem 1.2rem;
  text-align: center;
}

.ax-scene.active { display: flex; animation: axSceneIn 0.45s both; }

@keyframes axSceneIn {
  from { opacity: 0; transform: scale(0.97); }
  to   { opacity: 1; transform: scale(1); }
}

/* ── SCENE: INTRO ── */
.ax-big-icon {
  font-size: 3.4rem;
  line-height: 1;
  animation: axBounceIn 0.7s cubic-bezier(0.34, 1.56, 0.64, 1) both;
}

.ax-title {
  font-size: clamp(1.25rem, 3vw, 1.7rem);
  font-weight: 900;
  color: #C7D2FE;
  animation: axRise 0.5s 0.25s both;
}

.ax-sub {
  font-family: var(--ff-en, 'Outfit', sans-serif);
  font-size: 1rem;
  font-weight: 700;
  color: #7DD3FC;
  letter-spacing: 0.06em;
  animation: axRise 0.5s 0.45s both;
}

.ax-badge-line {
  font-size: 0.8rem;
  font-weight: 600;
  padding: 0.3rem 1rem;
  border: 1px solid rgba(237,240,250,0.30);
  border-radius: 999px;
  animation: axRise 0.5s 0.75s both;
}

@keyframes axBounceIn {
  0%   { opacity: 0; transform: scale(0.3); }
  70%  { transform: scale(1.12); }
  100% { opacity: 1; transform: scale(1); }
}

@keyframes axRise {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ── SCENE: USAGE (word-by-word) ── */
.ax-label {
  font-size: 0.85rem;
  font-weight: 700;
  color: #fff;
  background: linear-gradient(135deg, #6366F1, #3B82F6);
  padding: 0.35rem 1rem;
  border-radius: 999px;
  box-shadow: 0 6px 18px rgba(99,102,241,0.40);
  animation: axRise 0.4s both;
}

.ax-words {
  max-width: 640px;
  font-size: clamp(1.05rem, 2.6vw, 1.45rem);
  font-weight: 700;
  line-height: 2;
}

.ax-w {
  display: inline-block;
  opacity: 0;
  animation: axWordIn 0.45s var(--d, 0s) both;
}

@keyframes axWordIn {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ── SCENE: KEYWORDS (chips pop one by one) ── */
.ax-chips {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.55rem;
  max-width: 660px;
}

.ax-chip {
  display: flex;
  flex-direction: column;
  gap: 0.1rem;
  padding: 0.5rem 0.9rem;
  background: rgba(255,255,255,0.08);
  color: #EDF0FA;
  border: 1px solid rgba(255,255,255,0.16);
  border-radius: 12px;
  backdrop-filter: blur(6px);
  opacity: 0;
  animation: axChipPop 0.45s var(--d, 0s) cubic-bezier(0.34, 1.56, 0.64, 1) both;
}

.ax-chip-en {
  font-family: var(--ff-en, 'Outfit', sans-serif);
  font-weight: 700;
  font-size: 0.9rem;
}

.ax-chip-ar { font-size: 0.68rem; font-weight: 600; color: #A5B4FC; }

@keyframes axChipPop {
  0%   { opacity: 0; transform: scale(0.4); }
  70%  { transform: scale(1.08); }
  100% { opacity: 1; transform: scale(1); }
}

/* ── SCENE: FORMULA (blocks assemble, example drops in) ── */
.ax-eq {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.ax-block {
  font-family: var(--ff-en, 'Outfit', sans-serif);
  font-weight: 700;
  font-size: clamp(0.85rem, 2.2vw, 1.1rem);
  padding: 0.55rem 1.1rem;
  border-radius: 12px;
  color: #fff;
}

.ax-block-subj {
  background: linear-gradient(135deg, #0EA5E9, #38BDF8);
  box-shadow: 0 8px 20px rgba(14,165,233,0.35);
  animation: axSlideRight 0.5s 0.3s both;
}

.ax-block-form {
  background: linear-gradient(135deg, #6366F1, #3B82F6);
  box-shadow: 0 8px 20px rgba(99,102,241,0.35);
  animation: axSlideLeft 0.5s 0.7s both;
}

.ax-plus {
  font-size: 1.5rem;
  font-weight: 900;
  color: #A5B4FC;
  animation: axChipPop 0.4s 0.55s both;
}

.ax-ex {
  font-family: var(--ff-en, 'Outfit', sans-serif);
  font-size: clamp(0.95rem, 2.4vw, 1.2rem);
  font-weight: 600;
  background: rgba(255,255,255,0.10);
  color: #EDF0FA;
  border: 1px solid rgba(255,255,255,0.16);
  border-radius: 14px;
  padding: 0.75rem 1.2rem;
  backdrop-filter: blur(6px);
  max-width: 90%;
  animation: axRise 0.55s 1.5s both;
}

.ax-ex strong, .ax-ex em { color: #FCA5A5; font-style: normal; }

.ax-note {
  font-size: 0.8rem;
  font-weight: 600;
  color: #6EE7B7;
  animation: axRise 0.5s 2.2s both;
}

@keyframes axSlideRight {
  from { opacity: 0; transform: translateX(-40px); }
  to   { opacity: 1; transform: translateX(0); }
}

@keyframes axSlideLeft {
  from { opacity: 0; transform: translateX(40px); }
  to   { opacity: 1; transform: translateX(0); }
}

/* ── SCENE: EXCEPTION ── */
.ax-warn-title {
  font-size: 1.05rem;
  font-weight: 800;
  color: #fff;
  background: linear-gradient(135deg, #F59E0B, #FB923C);
  padding: 0.45rem 1.1rem;
  border-radius: 999px;
  box-shadow: 0 8px 20px rgba(245,158,11,0.35);
  animation: axShakeIn 0.7s both;
}

.ax-warn-body {
  max-width: 640px;
  font-size: 0.95rem;
  font-weight: 600;
  line-height: 2.1;
  animation: axRise 0.5s 0.5s both;
}

.ax-warn-body strong { color: #FCD34D; }
.ax-warn-body span[dir="ltr"] { color: #7DD3FC; font-family: var(--ff-en, 'Outfit', sans-serif); }

@keyframes axShakeIn {
  0%   { opacity: 0; transform: scale(0.6); }
  55%  { opacity: 1; transform: scale(1.06); }
  100% { transform: scale(1); }
}

/* ── SCENE: OUTRO ── */
.ax-outro-txt { font-size: 1rem; font-weight: 700; max-width: 520px; animation: axRise 0.5s 0.4s both; }

.ax-open-rule {
  font-family: inherit;
  font-size: 0.95rem;
  font-weight: 800;
  padding: 0.7rem 1.6rem;
  background: linear-gradient(135deg, #10B981, #34D399);
  color: #fff;
  border: 0;
  border-radius: 999px;
  box-shadow: 0 10px 26px rgba(16,185,129,0.40);
  cursor: pointer;
  animation: axRise 0.5s 0.7s both;
  transition: transform 0.15s, box-shadow 0.15s;
}

.ax-open-rule:hover { transform: translateY(-2px); box-shadow: 0 14px 32px rgba(16,185,129,0.5); }
.ax-open-rule:active { transform: translateY(0); box-shadow: 0 6px 16px rgba(16,185,129,0.3); }

/* ── POSTER (before playback) ── */
.ax-poster {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.7rem;
  background:
    radial-gradient(circle at 50% 45%, rgba(99,102,241,0.22), transparent 55%),
    rgba(10,14,30,0.55);
  z-index: 3;
}

.ax-poster.hidden { display: none; }

.ax-play-big {
  width: 74px;
  height: 74px;
  border-radius: 50%;
  border: 0;
  background: linear-gradient(135deg, #6366F1, #3B82F6);
  color: #fff;
  font-size: 1.7rem;
  padding-inline-start: 6px;
  cursor: pointer;
  box-shadow: 0 14px 36px rgba(99,102,241,0.50);
  animation: axPulse 1.8s ease-in-out infinite;
  transition: transform 0.15s;
}

.ax-play-big:hover { transform: scale(1.08); animation-play-state: paused; }

.ax-poster-txt { font-weight: 800; font-size: 1rem; color: #EDF0FA; }
.ax-poster-dur { font-weight: 600; font-size: 0.75rem; color: rgba(237,240,250,0.70); }

@keyframes axPulse {
  0%, 100% { box-shadow: 0 14px 36px rgba(99,102,241,0.50), 0 0 0 0 rgba(129,140,248,0.45); }
  50%      { box-shadow: 0 14px 36px rgba(99,102,241,0.50), 0 0 0 18px rgba(129,140,248,0); }
}

/* ── PROGRESS SEGMENTS ── */
.ax-segs {
  display: flex;
  gap: 4px;
  padding: 0.5rem 0.8rem;
  background: #0F172A;
}

.ax-seg {
  flex: 1;
  height: 5px;
  background: rgba(237,240,250,0.18);
  border-radius: 999px;
  overflow: hidden;
}

.ax-seg-fill {
  width: 0%;
  height: 100%;
  background: linear-gradient(90deg, #818CF8, #60A5FA);
  border-radius: 999px;
}

/* ── CONTROLS ── */
.ax-controls {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  padding: 0.65rem 0.9rem;
  background: var(--surface, #FFFFFF);
  border-top: 1px solid var(--border, rgba(15,23,42,0.08));
}

.ax-btn {
  font-family: inherit;
  font-size: 0.78rem;
  font-weight: 700;
  padding: 0.45rem 0.95rem;
  background: var(--surface2, #F8FAFC);
  color: var(--text-sec, #475569);
  border: 1px solid var(--border-md, rgba(15,23,42,0.13));
  border-radius: 999px;
  cursor: pointer;
  transition: all 0.18s;
}

.ax-btn:hover:not(:disabled) {
  background: var(--primary-tint, #EEF2FF);
  color: var(--primary-deep, #4F46E5);
  border-color: rgba(99,102,241,0.30);
}
.ax-btn:active:not(:disabled) { transform: scale(0.97); }
.ax-btn:disabled { opacity: 0.5; cursor: default; }

.ax-btn-toggle { background: var(--sky-tint, #E0F2FE); color: #0369A1; border-color: rgba(14,165,233,0.25); }
.ax-btn-skip   { background: var(--emerald-tint, #ECFDF5); color: #047857; border-color: rgba(16,185,129,0.25); margin-inline-start: auto; }

/* ── LOCKED / UNLOCKED RULE BODY ── */
.sc-body.ax-locked { display: none !important; }

.sc-body.ax-unlocked { animation: axRuleOpen 0.6s cubic-bezier(0.22, 1, 0.36, 1) both; }

@keyframes axRuleOpen {
  from { opacity: 0; transform: translateY(-14px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ── DARK MODE ── */
body.dark-mode .ax-player,
body.dark-mode .ax-controls { background: var(--surface); border-color: var(--border); }
body.dark-mode .ax-head { background: rgba(129,140,248,0.14); color: #A5B4FC; border-color: var(--border); }
body.dark-mode .ax-btn { background: var(--surface2); color: var(--text-sec); border-color: var(--border-md); }
body.dark-mode .ax-btn:hover:not(:disabled) { background: rgba(129,140,248,0.16); color: #A5B4FC; }
body.dark-mode .ax-btn-toggle { background: rgba(56,189,248,0.14); color: #7DD3FC; }
body.dark-mode .ax-btn-skip { background: rgba(52,211,153,0.14); color: #6EE7B7; }

/* ── MOBILE ── */
@media (max-width: 640px) {
  .ax-player { margin: 0.8rem 0.8rem 0; }
  .ax-screen { min-height: 300px; }
  .ax-head-en { display: none; }
  .ax-btn-skip { margin-inline-start: 0; }
  .ax-controls { justify-content: center; }
}

/* ── REDUCED MOTION ── */
@media (prefers-reduced-motion: reduce) {
  .ax-scene *, .ax-play-big { animation-duration: 0.01s !important; animation-delay: 0s !important; }
}