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serif;margin:0;font-size:clamp(1.4rem,5vw,2rem);line-height:1.28}.study-example-block{background:#ffffff08;border:1px solid #8aa0b624;border-radius:1.1rem;padding:.9rem 1rem;display:grid}.study-example-pair{gap:.5rem;display:grid}.study-example-text,.study-support{color:var(--ink);margin:0;font-size:.98rem;line-height:1.5}.study-example-translation{color:var(--muted);border-top:1px solid #8aa0b61f;margin:0;padding-top:.5rem;font-size:.96rem;line-height:1.45}.study-reference-section{gap:.58rem;display:grid}.study-reference-label{color:var(--muted);letter-spacing:.16em;text-transform:uppercase;font-size:.74rem}.study-reference-row{flex-wrap:wrap;gap:.5rem;display:flex}.study-reference-chip{border:1px solid var(--line);min-height:2.2rem;color:var(--ink);text-align:center;white-space:normal;word-break:break-word;background:0 0;border-radius:999px;padding:.35rem .82rem;font-size:.94rem;line-height:1.2;transition:border-color .16s,background .16s,color .16s,opacity .16s}.study-reference-chip-active{color:var(--accent-deep);background:#67beff14;border-color:#67beff42}.study-reference-chip-playing{background:#67beff1f;border-color:#67beff57}.study-support-note{color:var(--muted);font-size:.84rem;line-height:1.4}.study-card-foot{gap:.75rem;padding-top:.2rem;display:grid}.study-reveal-button{background:var(--accent-soft);width:100%;color:var(--ink);z-index:2;border-color:#67beff3d;position:relative}.study-action-row{grid-template-columns:repeat(2,minmax(0,1fr));gap:.75rem;display:grid}.study-action-button{border-color:var(--line);background:var(--field-bg);color:var(--ink);z-index:2;position:relative}.study-action-button-again{color:var(--accent-deep);background:#8c38171a;border-color:#8c381738}.study-action-button-know{background:var(--olive-soft);color:var(--olive);border-color:#5d7b5238}.session-error{text-align:center;font-size:.92rem}.form-stack,.form-card{gap:.85rem;display:grid}.field-group{gap:.42rem;display:grid}.field-group label{color:var(--muted);font-size:.92rem}.field-group input,.field-group textarea{border:1px solid var(--line);background:var(--field-bg);width:100%;color:var(--ink);border-radius:1rem;padding:.9rem 1rem}.field-group textarea{resize:vertical;min-height:5rem}.nav-bar{border:1px solid var(--line);background:var(--nav-bg);-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);box-shadow:var(--shadow);border-radius:999px;grid-template-columns:repeat(3,minmax(0,1fr));gap:.5rem;padding:.46rem;display:grid;overflow:hidden}.nav-link{min-height:2.9rem;color:var(--muted);border-radius:999px}.nav-link-active{background:var(--accent-soft);color:var(--ink)}@media (min-width:721px){.dashboard-main{grid-template-columns:repeat(2,minmax(0,1fr))}.dashboard-foot-button{width:auto}.session-empty-actions{grid-template-columns:repeat(2,minmax(0,1fr))}}@media (max-width:720px){.brand-mark{padding-inline:.62rem}.dashboard-tile{min-height:11rem}}@media (hover:none) and (pointer:coarse){.shell-backdrop{display:none}.language-select-wrap,.panel,.study-preview,.nav-bar{-webkit-backdrop-filter:none;box-shadow:0 10px 24px #142d440f}.study-card{background:linear-gradient(145deg, #ffffff1f, transparent 38%), linear-gradient(210deg, #67beff14, transparent 58%), linear-gradient(180deg, #ffffff0a, #fff0 42%), var(--study-card-bg);transition:transform .22s cubic-bezier(.18,.88,.32,1.03),border-color .18s;box-shadow:0 14px 30px #142d4414}.study-card-dragging{box-shadow:0 10px 22px #142d4414}.study-card-body{overflow:hidden}}@media (max-width:420px){.shell-inner{--shell-pad-left:max(.7rem, env(safe-area-inset-left));--shell-pad-right:max(.7rem, env(safe-area-inset-right))}.brand-user{max-width:5.5rem}.study-card{border-radius:1.6rem;padding:1rem}.study-action-row{grid-template-columns:1fr}}@media (max-width:360px){.brand-user{display:none}}@property --tw-rotate-x{syntax:"*";inherits:false}@property --tw-rotate-y{syntax:"*";inherits:false}@property --tw-rotate-z{syntax:"*";inherits:false}@property --tw-skew-x{syntax:"*";inherits:false}@property --tw-skew-y{syntax:"*";inherits:false}