/* Irregular verbs page. Builds on site.css. */
.nav nav a.active { color: var(--text); }

.iv-hero { max-width: 1200px; margin: 0 auto; padding: clamp(2.5rem, 6vw, 4.5rem) clamp(1rem, 4vw, 3rem) 1rem; }
.iv-hero h1 { font-size: clamp(2.6rem, 6vw, 4.4rem); font-weight: 800; letter-spacing: -.02em; }
.crumbs { color: var(--muted); font-size: .9rem; margin: 0 0 1rem; }
.crumbs a:hover { color: var(--text); }
.mastery { max-width: 520px; padding: 1.1rem 1.4rem; }
.mastery-text { font-weight: 600; margin-bottom: .6rem; }
.mastery-text b { font-size: 1.4rem; background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.mastery small { color: var(--muted); display: block; margin-top: .5rem; }
.bar { height: 10px; border-radius: 99px; background: rgba(255, 255, 255, .08); overflow: hidden; }
.bar span { display: block; height: 100%; width: 0; background: var(--grad); border-radius: inherit; transition: width .6s cubic-bezier(.2, .8, .2, 1); }

/* Patterns */
.patterns { display: grid; grid-template-columns: repeat(5, 1fr); gap: 1rem; }
.pattern {
  text-align: left; cursor: pointer; padding: 1.3rem; border-radius: var(--radius); font: inherit; color: var(--text);
  background: var(--glass); border: 1px solid var(--border); transition: transform .2s, border-color .2s, box-shadow .2s;
}
.pattern:hover { transform: translateY(-4px); }
.pattern.active { border-color: var(--c); box-shadow: 0 0 0 1px var(--c), 0 20px 40px -20px var(--c); }
.pattern .code { font-size: 1.5rem; font-weight: 800; color: var(--c); letter-spacing: .1em; }
.pattern h3 { font-size: 1rem; margin: .3rem 0; }
.pattern p { color: var(--muted); font-size: .85rem; margin: 0; }
.pattern .ex { display: block; margin-top: .6rem; font-size: .9rem; color: var(--text); }
.pattern .n { float: right; font-size: .75rem; color: var(--muted); }

/* Tabs */
.tabs { display: flex; gap: .4rem; background: var(--glass); border: 1px solid var(--border); padding: .3rem; border-radius: 999px; }
.tab { border: none; background: none; color: var(--muted); font: inherit; font-weight: 600; padding: .55rem 1.1rem; border-radius: 999px; cursor: pointer; }
.tab.active { background: var(--grad); color: #fff; }

/* Game shell */
.game { padding: 1.5rem; position: relative; }
.hud { display: flex; align-items: center; gap: 1.6rem; flex-wrap: wrap; padding-bottom: 1rem; border-bottom: 1px solid var(--border); }
.hud-item span { display: block; font-size: .72rem; text-transform: uppercase; letter-spacing: .12em; color: var(--muted); }
.hud-item b { font-size: 1.5rem; }
#combo { color: var(--pink); }
.hud-controls { margin-left: auto; display: flex; gap: .8rem; align-items: center; flex-wrap: wrap; }
.hud-controls label { color: var(--muted); font-size: .85rem; display: flex; gap: .4rem; align-items: center; }
select {
  background: rgba(255, 255, 255, .08); color: var(--text); border: 1px solid var(--border);
  border-radius: 10px; padding: .4rem .6rem; font: inherit;
}
select option { background: #15183d; }
.filter-note { color: var(--muted); font-size: .85rem; margin: .8rem 0 0; min-height: 1.2em; }
.instructions { color: var(--muted); margin: .6rem 0 1rem; }

/* Draggable chips */
.tray {
  display: flex; flex-wrap: wrap; gap: .7rem; justify-content: center; padding: 1rem; min-height: 4.2rem;
  border: 2px dashed var(--border); border-radius: 16px; margin-bottom: 1.4rem;
}
.chip-drag {
  touch-action: none; user-select: none; cursor: grab;
  padding: .7rem 1.2rem; border-radius: 14px; font-weight: 700; font-size: 1.05rem;
  background: linear-gradient(160deg, rgba(124, 92, 255, .35), rgba(255, 92, 168, .2));
  border: 1px solid rgba(255, 255, 255, .2); box-shadow: 0 8px 20px -10px rgba(124, 92, 255, .8);
  transition: transform .15s, opacity .2s, box-shadow .2s;
}
.chip-drag:hover { transform: translateY(-2px); }
.chip-drag.selected { box-shadow: 0 0 0 3px var(--cyan), 0 8px 24px -8px var(--cyan); transform: translateY(-3px) scale(1.04); }
.chip-drag.dragging { opacity: .3; }
.chip-drag.used { display: none; }
.ghost {
  position: fixed; z-index: 100; pointer-events: none; margin: 0; cursor: grabbing;
  transform: translate(-50%, -50%) rotate(-4deg) scale(1.08); box-shadow: 0 20px 40px -10px rgba(0, 0, 0, .6);
}

/* Picture Match targets */
.targets { display: grid; grid-template-columns: repeat(auto-fill, minmax(min(170px, 100%), 1fr)); gap: 1rem; }
.target {
  position: relative; display: flex; flex-direction: column; align-items: center; text-align: center; gap: .4rem;
  padding: 1.2rem .9rem 1rem; border-radius: 18px; background: rgba(255, 255, 255, .04);
  border: 2px solid var(--border); transition: border-color .2s, background .2s, transform .2s; cursor: pointer;
}
.target .pic { font-size: 3.4rem; line-height: 1; filter: drop-shadow(0 6px 12px rgba(0, 0, 0, .35)); transition: transform .3s; }
.target .meaning { color: var(--muted); font-size: .88rem; flex: 1; }
.target .slot {
  width: 100%; min-height: 2.6rem; border-radius: 12px; border: 2px dashed var(--border);
  display: grid; place-items: center; font-weight: 700; font-size: .95rem;
}
.over { border-color: var(--cyan) !important; background: rgba(47, 214, 255, .1) !important; transform: scale(1.03); }
.target.correct, .slot-box.correct { border-color: var(--ok); background: rgba(52, 211, 153, .12); }
.target.correct .pic { transform: scale(1.15) rotate(-6deg); }
.target.correct .slot { border-style: solid; border-color: var(--ok); color: var(--ok); }
.wrong { animation: shake .4s; border-color: var(--bad) !important; }

/* Forms Builder rows */
.form-rows { display: grid; gap: .9rem; }
.form-row {
  display: grid; grid-template-columns: auto 1.2fr 1fr 1fr; gap: .9rem; align-items: center;
  padding: .8rem 1rem; border-radius: 18px; background: rgba(255, 255, 255, .04); border: 1px solid var(--border);
}
.form-row .pic { font-size: 2.4rem; }
.form-row .base b { font-size: 1.25rem; display: block; }
.form-row .base small { color: var(--muted); }
.slot-box {
  min-height: 3rem; border-radius: 12px; border: 2px dashed var(--border); display: grid; place-items: center;
  padding: .3rem .6rem; text-align: center; cursor: pointer; transition: all .2s;
}
.slot-box .lbl { font-size: .7rem; text-transform: uppercase; letter-spacing: .1em; color: var(--muted); }
.slot-box.correct { border-style: solid; color: var(--ok); font-weight: 700; }
.form-row.done { border-color: var(--ok); }

/* Round complete */
.round-done { text-align: center; padding: 2rem 1rem 1rem; animation: pop .4s; }
.round-done h3 { font-size: 1.8rem; margin-bottom: .4rem; }
.round-done p { color: var(--muted); }

/* Study list */
.toggle { display: flex; align-items: center; gap: .5rem; color: var(--muted); cursor: pointer; }
.toggle input { width: 18px; height: 18px; accent-color: var(--primary); }
.verb-list { display: grid; grid-template-columns: repeat(auto-fill, minmax(min(280px, 100%), 1fr)); gap: 1rem; }
.verb {
  display: grid; grid-template-columns: auto 1fr; gap: .2rem 1rem; padding: 1.1rem 1.2rem;
  border-radius: var(--radius); background: var(--glass); border: 1px solid var(--border); animation: rise .4s both;
}
.verb .pic { grid-row: span 3; font-size: 2.6rem; align-self: center; }
.verb .forms { display: flex; align-items: center; gap: .4rem; flex-wrap: wrap; font-weight: 700; font-size: 1.05rem; }
.verb .forms .arrow { color: var(--muted); font-weight: 400; }
.verb .forms .f2, .verb .forms .f3 { color: var(--cyan); transition: filter .2s; }
.verb .meta { display: flex; align-items: center; gap: .4rem; }
.verb .meta .star { margin-left: auto; }
.verb p { margin: 0; color: var(--muted); font-size: .88rem; }
.verb .example { font-style: italic; }
.hide-forms .verb .f2, .hide-forms .verb .f3 { filter: blur(7px); cursor: pointer; }
.hide-forms .verb.reveal .f2, .hide-forms .verb.reveal .f3 { filter: none; }
.pbadge { font-size: .7rem; font-weight: 700; padding: .15rem .5rem; border-radius: 99px; color: #0b0d1f; background: var(--c); }

/* Pattern colors */
[data-pattern="AAA"] { --c: #34d399; }
[data-pattern="AAB"] { --c: #fbbf24; }
[data-pattern="ABA"] { --c: #38bdf8; }
[data-pattern="ABB"] { --c: #a78bfa; }
[data-pattern="ABC"] { --c: #f472b6; }

#confetti { position: fixed; inset: 0; width: 100%; height: 100%; pointer-events: none; z-index: 90; }

@media (max-width: 980px) {
  .patterns { grid-template-columns: repeat(3, 1fr); }
  .hud-controls { margin-left: 0; width: 100%; }
}

/* Phones */
@media (max-width: 600px) {
  .iv-hero { padding: 2rem 1rem .5rem; }
  .mastery { padding: .9rem 1rem; }

  /* Pattern families: swipeable row of cards */
  .patterns { display: flex; overflow-x: auto; scroll-snap-type: x mandatory; gap: .7rem; margin: 0 -1rem; padding: .3rem 1rem 1rem; scrollbar-width: none; }
  .patterns::-webkit-scrollbar { display: none; }
  .pattern { flex: 0 0 72%; scroll-snap-align: start; padding: 1rem; }
  .pattern:hover { transform: none; }

  .tabs { width: 100%; }
  .tab { flex: 1; padding: .6rem .4rem; font-size: .9rem; }

  .game { padding: 1rem .8rem; }
  .hud { display: grid; grid-template-columns: repeat(4, 1fr); gap: .6rem; text-align: center; }
  .hud-item b { font-size: 1.2rem; }
  .hud-item span { font-size: .62rem; letter-spacing: .08em; }
  .hud-controls { grid-column: 1 / -1; display: grid; grid-template-columns: 1fr 1fr; gap: .6rem; }
  .hud-controls label { flex-direction: column; align-items: stretch; gap: .2rem; font-size: .75rem; }
  .hud-controls select { font-size: 16px; padding: .5rem; }
  .hud-controls .btn { grid-column: 1 / -1; justify-content: center; padding: .7rem; }
  .instructions { font-size: .9rem; }

  /* The card tray stays visible under the header while you scroll down to the targets */
  .tray {
    position: sticky; top: 64px; z-index: 5; max-height: 40vh; overflow-y: auto; overscroll-behavior: contain; gap: .5rem; padding: .7rem; margin: 0 -.2rem 1rem;
    background: rgba(18, 21, 58, .94); backdrop-filter: blur(12px); border-style: solid;
  }
  .chip-drag { padding: .6rem .9rem; font-size: .95rem; min-height: 44px; display: inline-flex; align-items: center; }

  .targets { grid-template-columns: repeat(2, 1fr); gap: .6rem; }
  .target { padding: .8rem .5rem .7rem; gap: .3rem; border-radius: 14px; }
  .target .pic { font-size: 2.5rem; }
  .target .meaning { font-size: .78rem; line-height: 1.35; }
  .target .slot { min-height: 2.4rem; font-size: .8rem; padding: .2rem .3rem; overflow-wrap: anywhere; }

  /* Forms Builder: picture + verb on top, two equal slots below */
  .form-row {
    grid-template-columns: 2.6rem 1fr 2.6rem 1fr;
    grid-template-areas: "pic base base base" "s1 s1 s2 s2";
    gap: .5rem .6rem; padding: .7rem;
  }
  .form-row .pic { grid-area: pic; font-size: 2rem; }
  .form-row .base { grid-area: base; }
  .form-row .base small { font-size: .78rem; }
  .form-row .slot-box:nth-of-type(1) { grid-area: s1; }
  .form-row .slot-box:nth-of-type(2) { grid-area: s2; }
  .slot-box { min-height: 2.8rem; overflow-wrap: anywhere; }
  .slot-box .lbl { font-size: .62rem; }

  .round-done h3 { font-size: 1.4rem; }
  .toggle { font-size: .9rem; }
  .verb-list { grid-template-columns: 1fr; gap: .7rem; }
  .verb { padding: .9rem 1rem; }
  .verb .pic { font-size: 2.2rem; }
}