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var(--tw-ring-offset-color)}.outline{outline-style:var(--tw-outline-style);outline-width:1px}.transition-\[border-color\,box-shadow\]{transition-property:border-color,box-shadow;transition-timing-function:var(--tw-ease,var(--default-transition-timing-function));transition-duration:var(--tw-duration,var(--default-transition-duration))}.transition-\[border-color\]{transition-property:border-color;transition-timing-function:var(--tw-ease,var(--default-transition-timing-function));transition-duration:var(--tw-duration,var(--default-transition-duration))}.transition-\[width\]{transition-property:width;transition-timing-function:var(--tw-ease,var(--default-transition-timing-function));transition-duration:var(--tw-duration,var(--default-transition-duration))}.transition-colors{transition-property:color,background-color,border-color,outline-color,text-decoration-color,fill,stroke,--tw-gradient-from,--tw-gradient-via,--tw-gradient-to;transition-timing-function:var(--tw-ease,var(--default-transition-timing-function));transition-duration:var(--tw-duration,var(--default-transition-duration))}.transition-transform{transition-property:transform,translate,scale,rotate;transition-timing-function:var(--tw-ease,var(--default-transition-timing-function));transition-duration:var(--tw-duration,var(--default-transition-duration))}.duration-300{--tw-duration:.3s;transition-duration:.3s}.duration-\[140ms\]{--tw-duration:.14s;transition-duration:.14s}.placeholder\:text-\[var\(--ink-4\)\]::placeholder{color:var(--ink-4)}@media (hover:hover){.hover\:bg-\[oklch\(8\%_0\.016_60\)\]:hover{background-color:oklch(8% .016 60)}.hover\:bg-\[oklch\(42\%_0\.11_145\)\]:hover{background-color:oklch(42% .11 145)}.hover\:bg-\[oklch\(42\%_0\.16_28\)\]:hover{background-color:oklch(42% .16 28)}.hover\:bg-\[var\(--lumen-accent-hover\)\]:hover{background-color:var(--lumen-accent-hover)}.hover\:bg-\[var\(--paper-1\)\]:hover{background-color:var(--paper-1)}.hover\:bg-\[var\(--paper-2\)\]:hover{background-color:var(--paper-2)}.hover\:bg-\[var\(--paper-4\)\]:hover{background-color:var(--paper-4)}.hover\:text-\[var\(--ink-1\)\]:hover{color:var(--ink-1)}.hover\:underline:hover{text-decoration-line:underline}.hover\:decoration-\[var\(--lumen-accent\)\]:hover{-webkit-text-decoration-color:var(--lumen-accent);text-decoration-color:var(--lumen-accent)}}.focus-visible\:border-\[var\(--lumen-accent\)\]:focus-visible{border-color:var(--lumen-accent)}.focus-visible\:outline-none:focus-visible{--tw-outline-style:none;outline-style:none}.active\:bg-\[var\(--lumen-accent-press\)\]:active{background-color:var(--lumen-accent-press)}.disabled\:pointer-events-none:disabled{pointer-events:none}.disabled\:cursor-not-allowed:disabled{cursor:not-allowed}.disabled\:bg-\[var\(--paper-2\)\]:disabled{background-color:var(--paper-2)}.disabled\:text-\[var\(--ink-4\)\]:disabled{color:var(--ink-4)}.disabled\:opacity-40:disabled{opacity:.4}.disabled\:opacity-50:disabled{opacity:.5}.disabled\:opacity-60:disabled{opacity:.6}@media (min-width:40rem){.sm\:col-span-4{grid-column:span 4/span 4}.sm\:grid-cols-2{grid-template-columns:repeat(2,minmax(0,1fr))}.sm\:grid-cols-4{grid-template-columns:repeat(4,minmax(0,1fr))}.sm\:flex-row{flex-direction:row}.sm\:gap-4{gap:calc(var(--spacing) * 4)}.sm\:py-12{padding-block:calc(var(--spacing) * 12)}}@media (min-width:48rem){.md\:flex{display:flex}.md\:hidden{display:none}}@media (prefers-color-scheme:dark){.dark\:bg-green-950\/30{background-color:#032e154d}@supports (color:color-mix(in lab,red,red)){.dark\:bg-green-950\/30{background-color:color-mix(in oklab,var(--color-green-950) 30%,transparent)}}.dark\:bg-red-950\/30{background-color:#4608094d}@supports (color:color-mix(in lab,red,red)){.dark\:bg-red-950\/30{background-color:color-mix(in oklab,var(--color-red-950) 30%,transparent)}}.dark\:text-\[oklch\(80\%_0\.13_70\)\]{color:oklch(80% .13 70)}}}:root{--paper-0:oklch(98.5% .006 80);--paper-1:oklch(97.5% .008 80);--paper-2:oklch(95.5% .01 80);--paper-3:oklch(92.5% .012 78);--paper-4:oklch(88% .014 76);--ink-1:oklch(16% .016 60);--ink-2:oklch(32% .014 60);--ink-3:oklch(48% .012 60);--ink-4:oklch(65% .01 60);--ink-5:oklch(78% .008 60);--border-subtle:oklch(90% .01 75);--border-default:oklch(85% .012 72);--border-strong:oklch(72% .014 68);--lumen-accent:oklch(46% .14 38);--lumen-accent-hover:oklch(40% .15 38);--lumen-accent-press:oklch(36% .16 38);--lumen-accent-fg:oklch(98% .008 80);--lumen-accent-soft:oklch(94% .025 38);--lumen-success:oklch(48% .11 145);--lumen-success-soft:oklch(94% .03 145);--lumen-success-fg:oklch(98% .008 145);--lumen-warning:oklch(70% .13 70);--lumen-warning-soft:oklch(94% .04 80);--lumen-warning-fg:oklch(20% .02 60);--lumen-destructive:oklch(48% .16 28);--lumen-destructive-soft:oklch(94% .03 28);--lumen-destructive-fg:oklch(98% .008 80);--shadow-xs:0 1px 1px 0 oklch(20% .02 60/.04);--shadow-sm:0 1px 2px 0 oklch(20% .02 60/.05),0 1px 1px -.5px oklch(20% .02 60/.03);--shadow-md:0 4px 8px -2px oklch(20% .02 60/.06),0 2px 4px -2px oklch(20% .02 60/.04);--shadow-lg:0 14px 28px -8px oklch(20% .02 60/.1),0 4px 10px -4px oklch(20% .02 60/.05);--shadow-focus:0 0 0 3px oklch(46% .14 38/.2);--ease-standard:cubic-bezier(.22,.61,.36,1);--ease-emph:cubic-bezier(.16,1,.3,1);--dur-instant:80ms;--dur-fast:.14s;--dur-base:.2s;--dur-slow:.32s}.dark{--paper-0:oklch(20% .01 60);--paper-1:oklch(17% .01 55);--paper-2:oklch(22% .011 55);--paper-3:oklch(26% .012 55);--paper-4:oklch(32% .012 55);--ink-1:oklch(95% .008 80);--ink-2:oklch(82% .01 78);--ink-3:oklch(64% .01 75);--ink-4:oklch(48% .01 72);--ink-5:oklch(36% .01 70);--border-subtle:oklch(28% .01 60);--border-default:oklch(34% .012 60);--border-strong:oklch(46% .014 60);--lumen-accent:oklch(62% .12 38);--lumen-accent-hover:oklch(68% .13 38);--lumen-accent-press:oklch(56% .12 38);--lumen-accent-fg:oklch(15% .018 60);--lumen-accent-soft:oklch(28% .05 38);--lumen-success:oklch(64% .11 145);--lumen-success-soft:oklch(26% .05 145);--lumen-success-fg:oklch(15% .02 145);--lumen-warning:oklch(74% .13 70);--lumen-warning-soft:oklch(28% .06 70);--lumen-warning-fg:oklch(15% .02 60);--lumen-destructive:oklch(62% .16 28);--lumen-destructive-soft:oklch(28% .06 28);--lumen-destructive-fg:oklch(15% .018 60);--shadow-xs:0 1px 1px 0 oklch(0% 0 0/.2);--shadow-sm:0 1px 2px 0 oklch(0% 0 0/.3),0 1px 1px -.5px oklch(0% 0 0/.2);--shadow-md:0 4px 8px -2px oklch(0% 0 0/.3),0 2px 4px -2px oklch(0% 0 0/.2);--shadow-lg:0 14px 28px -8px oklch(0% 0 0/.4),0 4px 10px -4px oklch(0% 0 0/.25);--shadow-focus:0 0 0 3px oklch(62% .12 38/.3)}.font-jp{font-family:var(--font-jp);font-feature-settings:"palt" 1}.font-kr{font-family:var(--font-kr)}.font-display{font-family:var(--font-display)}.eyebrow{font-family:var(--font-sans);letter-spacing:.08em;text-transform:uppercase;color:var(--ink-3);font-size:.6875rem;font-weight:600}.lc-card{background:var(--paper-0);border:1px solid var(--border-subtle);border-radius:var(--radius-md);transition:box-shadow var(--dur-base) var(--ease-standard),background var(--dur-base) var(--ease-standard)}.lc-card-sunken{background:var(--paper-2);border-color:#0000}.lc-card-interactive{cursor:pointer}.lc-card-interactive:hover{box-shadow:var(--shadow-md)}.brand-mark{font-family:var(--font-display);letter-spacing:-.01em;font-variation-settings:"opsz" 96,"SOFT" 30;color:var(--ink-1);font-size:1.375rem;font-weight:500;text-decoration:none}.brand-mark .dot{color:var(--lumen-accent)}.nav-link{color:var(--ink-2);border-radius:var(--radius-sm);transition:background var(--dur-fast) var(--ease-standard),color var(--dur-fast) var(--ease-standard);white-space:nowrap;cursor:pointer;padding:8px 12px;font-size:.875rem;font-weight:500;text-decoration:none}.nav-link.is-current,.nav-link:hover{background:var(--paper-2);color:var(--ink-1)}.icon-btn{border-radius:var(--radius-sm);cursor:pointer;width:36px;height:36px;color:var(--ink-2);transition:background var(--dur-fast) var(--ease-standard),color var(--dur-fast) var(--ease-standard);background:0 0;border:none;justify-content:center;align-items:center;display:inline-flex}.icon-btn:hover{background:var(--paper-2);color:var(--ink-1)}.lang-toggle{background:var(--paper-2);border-radius:var(--radius-sm);gap:0;padding:2px;display:inline-flex}.lang-toggle-btn{letter-spacing:.02em;color:var(--ink-3);cursor:pointer;transition:all var(--dur-fast) var(--ease-standard);background:0 0;border:none;border-radius:4px;padding:4px 10px;font-size:.75rem;font-weight:600}.lang-toggle-btn[aria-pressed=true]{background:var(--paper-0);color:var(--ink-1);box-shadow:var(--shadow-xs)}.user-avatar{background:var(--paper-3);width:32px;height:32px;color:var(--ink-1);border:1px solid var(--border-subtle);cursor:pointer;border-radius:9999px;justify-content:center;align-items:center;font-size:.8125rem;font-weight:600;display:inline-flex}@keyframes fade-in{0%{opacity:0}to{opacity:1}}@keyframes slide-in-right{0%{transform:translate(100%)}to{transform:translate(0)}}@keyframes reveal-up{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}.animate-reveal-up{animation:reveal-up var(--dur-slow) var(--ease-emph) both}.animate-slide-in-right{animation:slide-in-right var(--dur-slow) var(--ease-emph)}.animate-fade-in{animation:fade-in var(--dur-base) var(--ease-standard)}.page-content{width:100%;max-width:1200px;margin:0 auto;padding:48px 24px 72px}@media (max-width:768px){.page-content{padding:28px 16px 56px}}.back-link{color:var(--ink-3);transition:color var(--dur-fast) var(--ease-standard);align-items:center;margin-bottom:16px;font-size:.8125rem;text-decoration:none;display:inline-flex}.back-link:hover,.page-title{color:var(--ink-1)}.page-title{font-family:var(--font-display);letter-spacing:-.02em;font-variation-settings:"opsz" 96,"SOFT" 30;margin:0 0 8px;font-size:2.5rem;font-weight:600;line-height:1.05}@media (max-width:640px){.page-title{font-size:2rem}}.page-subtitle{color:var(--ink-3);max-width:56ch;font-size:1rem;line-height:1.5}.dash-grid{grid-template-columns:repeat(3,1fr);gap:14px;display:grid}@media (max-width:1024px){.dash-grid{grid-template-columns:repeat(2,1fr)}}@media (max-width:640px){.dash-grid{grid-template-columns:1fr}}.dash-card{min-height:168px;color:inherit;flex-direction:column;justify-content:space-between;padding:24px;text-decoration:none;display:flex}.dash-card .dash-eyebrow{letter-spacing:.1em;text-transform:uppercase;color:var(--ink-3);margin-bottom:10px;font-size:.6875rem;font-weight:600}.dash-card .dash-title{font-family:var(--font-display);letter-spacing:-.02em;font-variation-settings:"opsz" 96,"SOFT" 30;color:var(--ink-1);font-size:1.875rem;font-weight:600;line-height:1.05}.dash-card .dash-desc{color:var(--ink-3);margin-top:4px;font-size:.8125rem;line-height:1.5}.dash-card .dash-foot{justify-content:flex-start;align-items:center;gap:8px;display:flex}.dash-card .dash-stat{color:var(--ink-2);font-size:.8125rem}.dash-card .dash-arrow{color:var(--ink-4);transition:color var(--dur-fast) var(--ease-standard),transform var(--dur-fast) var(--ease-standard);margin-left:auto}.dash-card:hover .dash-arrow{color:var(--lumen-accent);transform:translate(2px)}.study-wrap{gap:24px;max-width:720px;margin:0 auto}.study-card,.study-wrap{flex-direction:column;display:flex}.study-card{background:var(--paper-0);border:1px solid var(--border-subtle);border-radius:var(--radius-lg);text-align:center;justify-content:flex-start;align-items:center;min-height:360px;padding:64px 36px 32px}@media (max-width:640px){.study-card{min-height:280px;padding:40px 18px 20px}}.grade-bar{width:100%;margin-top:2rem}@media (max-width:640px){.grade-bar{z-index:30;padding:12px 16px calc(12px + env(safe-area-inset-bottom));background:var(--paper-0);border-top:1px solid var(--border-subtle);margin-top:0;position:fixed;bottom:0;left:0;right:0;box-shadow:0 -4px 16px -8px #0000002e}.study-card{margin-bottom:96px}}.study-headword{font-family:var(--font-jp);color:var(--ink-1);font-size:5rem;font-weight:500;line-height:1}@media (max-width:640px){.study-headword{font-size:3.25rem}}.study-reading{font-family:var(--font-jp);color:var(--ink-3);font-size:1.0625rem}.study-rule{background:var(--border-default);width:48px;height:1px;margin:28px auto}.study-meaning{font-family:var(--font-display);font-variation-settings:"opsz" 96,"SOFT" 30;letter-spacing:-.01em;font-size:1.75rem;line-height:1.25}.study-meaning,.study-meaning-kr{color:var(--ink-1);max-width:36ch;font-weight:500}.study-meaning-kr{font-family:var(--font-kr);font-size:1.5rem;line-height:1.3}.form-layout{gap:28px;max-width:540px;margin:0 auto}.form-layout,.form-row{flex-direction:column;display:flex}.form-row{gap:8px}.form-row label{color:var(--ink-1);font-size:.875rem;font-weight:500}.form-row .help{color:var(--ink-3);font-size:.75rem;line-height:1.5}.form-section{background:var(--paper-0);border:1px solid var(--border-subtle);border-radius:var(--radius-md);flex-direction:column;gap:22px;padding:24px;display:flex}.chip-group{flex-wrap:wrap;gap:6px;display:flex}.chip-btn{border:1px solid var(--border-default);background:var(--paper-0);color:var(--ink-2);cursor:pointer;transition:all var(--dur-fast) var(--ease-standard);border-radius:9999px;padding:8px 14px;font-size:.875rem;font-weight:500}.chip-btn:hover{background:var(--paper-2)}.chip-btn[aria-pressed=true]{background:var(--ink-1);color:var(--paper-0);border-color:var(--ink-1)}.login-screen{flex:1;justify-content:center;align-items:flex-start;min-height:100vh;padding:calc(33.3333vh - 73.3333px) 24px 24px;display:flex}.login-card{background:var(--paper-0);border:1px solid var(--border-subtle);border-radius:var(--radius-lg);text-align:center;width:100%;max-width:420px;padding:40px}.login-brand{font-family:var(--font-display);letter-spacing:-.02em;font-variation-settings:"opsz" 96,"SOFT" 30;color:var(--ink-1);margin-bottom:8px;font-size:2.25rem;font-weight:500}.login-sub{color:var(--ink-3);margin-bottom:28px;font-size:.875rem;line-height:1.5}.stats-grid{grid-template-columns:repeat(2,1fr);gap:14px;display:grid}@media (max-width:768px){.stats-grid{grid-template-columns:1fr}}.stat-num{font-family:var(--font-display);letter-spacing:-.03em;font-variation-settings:"opsz" 96,"SOFT" 30;color:var(--ink-1);font-size:3.5rem;font-weight:600;line-height:1}.stat-suffix{color:var(--ink-3);margin-left:4px;font-size:1.25rem}.search-layout{grid-template-columns:340px 1fr;align-items:start;gap:24px;display:grid}@media (max-width:900px){.search-layout{grid-template-columns:1fr}}.divider{background:var(--border-subtle);border:none;height:1px;margin:24px 0}@property --tw-translate-x{syntax:"*";inherits:false;initial-value:0}@property --tw-translate-y{syntax:"*";inherits:false;initial-value:0}@property --tw-translate-z{syntax:"*";inherits:false;initial-value:0}@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}@property --tw-space-y-reverse{syntax:"*";inherits:false;initial-value:0}@property --tw-border-style{syntax:"*";inherits:false;initial-value:solid}@property --tw-leading{syntax:"*";inherits:false}@property --tw-font-weight{syntax:"*";inherits:false}@property --tw-tracking{syntax:"*";inherits:false}@property --tw-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-shadow-color{syntax:"*";inherits:false}@property --tw-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-inset-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-inset-shadow-color{syntax:"*";inherits:false}@property --tw-inset-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-ring-color{syntax:"*";inherits:false}@property --tw-ring-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-inset-ring-color{syntax:"*";inherits:false}@property --tw-inset-ring-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-ring-inset{syntax:"*";inherits:false}@property --tw-ring-offset-width{syntax:"<length>";inherits:false;initial-value:0}@property --tw-ring-offset-color{syntax:"*";inherits:false;initial-value:#fff}@property --tw-ring-offset-shadow{syntax:"*";inherits:false;initial-value:0 0 #0000}@property --tw-outline-style{syntax:"*";inherits:false;initial-value:solid}@property --tw-duration{syntax:"*";inherits:false}@keyframes spin{to{transform:rotate(1turn)}}@keyframes pulse{50%{opacity:.5}}