/* ══════════════════════════════════════════════════════════════════════
   Homework Hub — app styles · brand indigo (matches theme --accent)
   Mobile-first; theme vars from /theme.css.
   ══════════════════════════════════════════════════════════════════════ */
:root{
  --hw:#7C5CBF;
  --hw-soft:rgba(124,92,191,.12);
  --hw-border:rgba(124,92,191,.35);
}

*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--text);font-family:'Space Grotesk',system-ui,sans-serif}
main{min-height:100vh;padding-bottom:70px}
.wrap{max-width:860px;margin:0 auto;padding:18px 16px}

.page-title{font-size:1.7rem;font-weight:700;letter-spacing:-.5px;margin:8px 0 6px}
.page-title em{font-style:normal;color:var(--hw)}
.page-sub{color:var(--text2);font-size:.92rem;line-height:1.55;margin-bottom:18px}
.dim-note{color:var(--dim);font-size:.85rem;line-height:1.5}

/* ── buttons (house pattern) ── */
.btn{font-family:inherit;font-size:.88rem;font-weight:700;border-radius:var(--r2);padding:11px 18px;cursor:pointer;border:none;text-decoration:none;display:inline-block;transition:opacity .2s,transform .15s}
.btn-teal{background:var(--grad);color:#fff}
.btn-teal:hover{opacity:.92;transform:translateY(-1px)}
.btn-ghost{background:transparent;border:1px solid var(--border2);color:var(--text2)}
.btn-ghost:hover{color:var(--text);border-color:var(--hw-border)}

/* ── gate ── */
.gate-panel{background:var(--surf);border:1px solid var(--border);border-radius:var(--r);padding:34px 22px;text-align:center;margin-top:40px}
.gate-ic{font-size:2.4rem;margin-bottom:10px}
.gate-title{font-weight:700;font-size:1.15rem;margin-bottom:8px}
.gate-msg{color:var(--text2);font-size:.92rem;line-height:1.6;margin-bottom:16px}

/* ── tabs ── */
.hw-tabs{display:flex;gap:6px;margin-bottom:16px;overflow-x:auto}
.hw-tab{flex:1;min-width:100px;background:var(--surf);border:1px solid var(--border);color:var(--text2);border-radius:var(--r2);padding:10px 8px;font-family:inherit;font-size:.85rem;font-weight:600;cursor:pointer;text-align:center;white-space:nowrap}
.hw-tab.on{background:var(--hw-soft);border-color:var(--hw-border);color:var(--hw)}
.hw-tab-cnt{color:var(--dim);font-weight:400}
.hw-tab.on .hw-tab-cnt{color:var(--hw)}

/* ── cards ── */
.hw-card{background:var(--surf);border:1px solid var(--border);border-radius:var(--r);padding:14px 16px;margin-bottom:10px}
.hw-card-head{display:flex;align-items:center;justify-content:space-between;gap:8px;flex-wrap:wrap;margin-bottom:6px}
.hw-card-title{font-weight:700;font-size:1rem}
.hw-card-meta{color:var(--dim);font-size:.8rem;margin-bottom:10px}
.hw-overdue{color:var(--red);font-weight:700}
.hw-card-acts{display:flex;gap:8px}
.hw-card-btn{padding:9px 16px;font-size:.82rem}

/* ── R-L Practice Suite sub-card (grouped rl_test / rl_worksheet feed items) ── */
.hw-subcard{background:var(--hw-soft);border:1px solid var(--hw-border);border-radius:var(--r);padding:12px 12px 4px;margin:14px 0 10px}
.hw-subcard-head{display:flex;align-items:baseline;gap:8px;flex-wrap:wrap;margin:2px 4px 10px}
.hw-subcard-ic{font-size:1.05rem}
.hw-subcard-title{font-weight:700;font-size:.98rem;color:var(--hw)}
.hw-subcard-sub{color:var(--dim);font-size:.76rem}
.hw-subcard-body .hw-card{background:var(--surf)}
.hw-linked-sync{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-top:8px}

.hw-chip{display:inline-block;border-radius:999px;padding:4px 10px;font-size:.72rem;font-weight:700;white-space:nowrap}
.hw-chip-todo{background:rgba(245,158,11,.14);color:var(--yellow);border:1px solid rgba(245,158,11,.3)}
.hw-chip-doing{background:rgba(32,185,185,.12);color:var(--teal);border:1px solid rgba(32,185,185,.3)}
.hw-chip-returned{background:var(--hw-soft);color:var(--hw);border:1px solid var(--hw-border)}

/* ── player screen ── */
.hw-player-top{display:flex;align-items:center;gap:12px;margin:8px 0 14px}
.hw-player-title{font-weight:700;font-size:1.1rem}
.hw-instructions{background:var(--surf2);border-radius:var(--r2);padding:10px 14px;font-size:.86rem;color:var(--text2);margin-bottom:14px}
.hw-player-meta{color:var(--dim);font-size:.82rem;margin-bottom:14px}
.hw-player-acts{margin-top:18px;display:flex;gap:10px}

.hw-section{margin-bottom:22px}
.hw-section-title{font-weight:700;font-size:1.05rem;margin-bottom:10px;padding-bottom:6px;border-bottom:1px solid var(--border)}
.hw-task{background:var(--surf);border:1px solid var(--border);border-radius:var(--r);padding:14px 16px;margin-bottom:12px}
.hw-task-title{font-weight:700;font-size:.92rem;margin-bottom:8px;color:var(--text2)}
.hw-audio-note{background:var(--surf2);border-radius:var(--r2);padding:8px 12px;font-size:.82rem;color:var(--dim);margin-bottom:10px}
.hw-audio-box{margin-bottom:12px;display:flex;flex-direction:column;gap:10px}
.hw-audio-row{background:var(--surf2);border-radius:var(--r2);padding:10px 12px}
.hw-audio-label{font-size:.82rem;color:var(--text2);margin-bottom:6px;font-weight:600}
.hw-audio-row audio{width:100%;display:block}

/* ── task image (map/diagram) + fallback note ── */
.hw-image-note{background:var(--surf2);border-radius:var(--r2);padding:8px 12px;font-size:.82rem;color:var(--dim);margin-bottom:10px}
.hw-image-box{margin-bottom:12px;display:flex;flex-direction:column;gap:10px}
.hw-figure{margin:0;padding:10px;background:var(--surf2);border:1px solid var(--border2);border-radius:var(--r2);text-align:center}
.hw-figure-img{max-width:100%;max-height:420px;display:block;margin:0 auto;border-radius:6px;background:#fff;cursor:zoom-in}
.hw-figure-cap{margin-top:6px;font-size:.74rem;color:var(--dim)}

/* Full-viewport click-to-zoom lightbox for .hw-figure-img (task 1 — map/diagram
   labelling needs to be readable, not just a thumbnail). Theme-aware via the
   existing --surf/--text/--border2 vars (house data-theme switch, not a media
   query) — feel matches testplayer's .tp-figure-lightbox. */
.hw-figure-lightbox{position:fixed;inset:0;z-index:500;background:rgba(0,0,0,.82);display:flex;align-items:center;justify-content:center;padding:28px;cursor:zoom-out}
.hw-figure-lightbox-img{max-width:100%;max-height:100%;border-radius:6px;background:#fff;box-shadow:0 10px 40px rgba(0,0,0,.5);cursor:default}
.hw-figure-lightbox-close{position:fixed;top:18px;right:22px;appearance:none;-webkit-appearance:none;width:40px;height:40px;border:none;border-radius:50%;background:var(--surf);color:var(--text);font-size:1.4rem;line-height:1;cursor:pointer;display:flex;align-items:center;justify-content:center}
.hw-figure-lightbox-close:hover{background:var(--hw);color:#fff}

.hw-item{padding:10px 0;border-top:1px solid var(--border)}
.hw-item:first-child{border-top:none}
.hw-item-text{font-size:.92rem;margin-bottom:8px;line-height:1.5}
.hw-hint{color:var(--dim);font-size:.78rem;margin-top:4px}

.hw-opts{display:flex;flex-direction:column;gap:6px}
.hw-opt-row{display:flex;align-items:center;gap:8px;font-size:.88rem;cursor:pointer}
.hw-opt-row input{accent-color:var(--hw)}

.hw-pill-row{display:flex;gap:8px;flex-wrap:wrap}
.hw-pill{background:var(--surf2);border:1px solid var(--border2);color:var(--text2);border-radius:999px;padding:7px 16px;font-family:inherit;font-size:.82rem;font-weight:600;cursor:pointer}
.hw-pill.on{background:var(--hw-soft);border-color:var(--hw-border);color:var(--hw)}

.hw-select,.hw-input{width:100%;background:var(--surf2);border:1px solid var(--border2);color:var(--text);border-radius:var(--r2);padding:9px 12px;font-family:inherit;font-size:.88rem}
.hw-input-sm{width:auto;min-width:0;flex:1}
.hw-gap{max-width:320px}

.hw-open .hw-textarea{width:100%;min-height:100px;background:var(--surf2);border:1px solid var(--border2);color:var(--text);border-radius:var(--r2);padding:10px 12px;font-family:inherit;font-size:.88rem;resize:vertical}
.hw-charcount{color:var(--dimmer);font-size:.74rem;margin-top:4px;text-align:right}

.hw-linked{display:flex;flex-direction:column;gap:8px;align-items:flex-start}
.hw-attach-form{display:flex;gap:8px;flex-wrap:wrap;width:100%}
.hw-attach-btn{align-self:flex-start}

/* ── modal ── */
.hw-modal-backdrop{position:fixed;inset:0;background:rgba(0,0,0,.55);display:flex;align-items:center;justify-content:center;z-index:500;padding:16px}
.hw-modal{background:var(--surf);border:1px solid var(--border);border-radius:var(--r);padding:22px;max-width:380px;width:100%}
.hw-modal-title{font-weight:700;font-size:1.05rem;margin-bottom:8px}
.hw-modal-msg{color:var(--text2);font-size:.88rem;margin-bottom:16px;line-height:1.5}
.hw-modal-acts{display:flex;gap:10px;justify-content:flex-end}

/* ── result screen ── */
.hw-result-hero{background:var(--surf);border:1px solid var(--border);border-radius:var(--r);padding:18px;text-align:center;margin-bottom:14px}
.hw-result-band{font-size:1.15rem}
.hw-result-status{font-size:1rem;color:var(--text2)}
.hw-result-late{color:var(--red);font-size:.82rem;margin-top:6px;font-weight:700}
.hw-teacher-notes{background:var(--surf2);border-radius:var(--r2);padding:10px 14px;font-size:.88rem;margin-bottom:14px}
.hw-result-item{padding:12px 0}
.hw-result-badge{display:inline-block;border-radius:999px;padding:3px 10px;font-size:.76rem;font-weight:700;margin-bottom:4px}
.hw-result-badge.ok{background:rgba(34,197,94,.14);color:var(--green);border:1px solid rgba(34,197,94,.3)}
.hw-result-badge.bad{background:rgba(239,68,68,.14);color:var(--red);border:1px solid rgba(239,68,68,.3)}
.hw-key{color:var(--hw);font-size:.82rem;margin-top:4px}
.hw-item-feedback{background:var(--surf2);border-radius:var(--r2);padding:8px 12px;margin-top:6px}
.hw-err{color:var(--red);font-size:.9rem;padding:20px 0}

/* toast (house pattern) */
.toast{position:fixed;bottom:24px;left:50%;transform:translateX(-50%);background:var(--surf3);color:var(--text);border:1px solid var(--border2);border-radius:10px;padding:11px 18px;font-size:.86rem;font-weight:600;z-index:400;max-width:90vw}

@media (max-width:520px){
  .hw-attach-form{flex-direction:column}
  .hw-input-sm{width:100%}
}