@import"https://fonts.googleapis.com/css2?family=Lora:ital,wght@0,400..700;1,400..700&family=Manrope:wght@400;500;600;700;800&display=swap";:root{color:#14201c;background:#f4f1e8;font-family:Manrope,sans-serif;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;--ink: #14201c;--muted: #66736d;--paper: #fffdf7;--paper-strong: #ffffff;--panel: rgba(255, 253, 247, .92);--panel-strong: rgba(255, 253, 247, .98);--control: #ede8dc;--control-strong: #ece6d9;--button-surface: #ffffff;--field-surface: #ffffff;--note-surface: #fff7d9;--note-ink: #7d704f;--active-bg: color-mix(in srgb, var(--language-accent, #174f43) 14%, #eaeae4);--active-text: var(--ink);--on-accent: #ffffff;--panel-border: rgba(20, 32, 28, .12);--subtle-border: rgba(20, 32, 28, .1);--mix-base: white;--body-wash-start: rgba(255, 253, 247, .94);--body-wash-end: rgba(244, 241, 232, .96);--body-rule: rgba(20, 32, 28, .035);--line: #ded8ca;--chart-axis-text: #56635d;--chart-grid: rgba(20, 32, 28, .13);--chart-tooltip-surface: #fffdf7;--chart-tooltip-border: rgba(20, 32, 28, .18);--chart-tooltip-label: #14201c;--chart-tooltip-value: #174f43;--green: #174f43;--gold: #f2b13d;--red: #c74735;--blue: #1f65c7;--purple: #8b5cf6;--shadow: 0 18px 45px rgba(38, 49, 44, .12)}:root[data-theme=dark]{color-scheme:dark;color:#e2e8f0;background:#0f121a;--ink: #f8fafc;--muted: #94a3b8;--paper: #181d28;--paper-strong: #1e2433;--panel: rgba(24, 29, 40, .96);--panel-strong: rgba(30, 36, 51, .98);--control: #242c3d;--control-strong: #2e394e;--button-surface: #222938;--field-surface: #171c26;--note-surface: #2c2518;--note-ink: #f5c469;--active-bg: color-mix(in srgb, var(--language-accent, #6d9ff5) 18%, #181d28);--active-text: #f8fafc;--on-accent: #0f121a;--panel-border: rgba(148, 163, 184, .18);--subtle-border: rgba(148, 163, 184, .12);--mix-base: #141822;--body-wash-start: rgba(12, 15, 22, .98);--body-wash-end: rgba(20, 25, 36, .96);--body-rule: rgba(241, 245, 249, .04);--line: #333f52;--chart-axis-text: #b8c5d6;--chart-grid: rgba(184, 197, 214, .18);--chart-tooltip-surface: #202838;--chart-tooltip-border: rgba(184, 197, 214, .28);--chart-tooltip-label: #f8fafc;--chart-tooltip-value: #9bc5ff;--green: #8ad4b4;--gold: #e4b650;--red: #ea8b78;--blue: #93baf0;--purple: #c4b0ff;--shadow: 0 20px 54px rgba(0, 0, 0, .5)}@property --progress{syntax: "<percentage>"; inherits: true; initial-value: 0%;}*{box-sizing:border-box}body{margin:0;min-width:320px;min-height:100vh;background:linear-gradient(180deg,var(--body-wash-start),var(--body-wash-end)),repeating-linear-gradient(90deg,var(--body-rule) 0 1px,transparent 1px 72px);transition:background .18s ease,color .18s ease}button{font:inherit;cursor:pointer}.app-shell{display:grid;grid-template-columns:238px minmax(0,1fr);gap:14px;align-items:start;width:min(1320px,calc(100% - 28px));margin:0 auto;padding:18px 0 28px}.app-content{min-width:0}.celebration-layer{position:fixed;top:0;right:0;bottom:0;left:0;z-index:30;display:grid;place-items:center;pointer-events:none}.celebration-backdrop{position:absolute;top:0;right:0;bottom:0;left:0;z-index:0;background:#14201c57;-webkit-backdrop-filter:blur(3px);backdrop-filter:blur(3px);pointer-events:auto;animation:celebration-pop .28s ease-out both}.confetti-field{position:absolute;top:0;right:0;bottom:0;left:0;z-index:1;width:100%;height:100%;pointer-events:none}.completion-card{position:relative;z-index:2;width:min(520px,calc(100% - 32px));padding:12px;border:1px solid var(--panel-border);border-radius:12px;color:var(--ink);background:linear-gradient(135deg,var(--panel-strong),var(--panel)),repeating-linear-gradient(90deg,var(--body-rule) 0 1px,transparent 1px 58px);box-shadow:0 28px 75px #14201c47;pointer-events:auto;animation:celebration-pop .32s cubic-bezier(.16,1,.3,1) both}.completion-inner{display:grid;gap:20px;padding:24px;border:1px dashed rgba(20,32,28,.15);border-radius:8px}.completion-close{position:absolute;top:24px;right:24px;display:grid;place-items:center;width:32px;height:32px;border:1px solid var(--panel-border);border-radius:6px;color:var(--muted);background:var(--button-surface);transition:transform .1s,color .1s,border-color .1s}.completion-close:hover{transform:scale(1.05);color:var(--ink);border-color:#14201c40}.completion-header{display:grid;gap:4px;text-align:left}.completion-header .eyebrow{font-size:.72rem;font-weight:900;text-transform:uppercase;letter-spacing:.08em;color:var(--language-accent, var(--green))}.completion-header h2{margin:0;color:var(--ink);font-family:Lora,serif;font-size:1.6rem;line-height:1.15;font-weight:900}.completion-stat-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}.completion-stat-card{display:grid;grid-template-columns:auto minmax(0,1fr);grid-template-rows:auto auto;column-gap:8px;align-items:center;min-height:82px;padding:12px;border:1px solid var(--subtle-border);border-radius:8px;background:var(--button-surface)}.completion-stat-card svg{grid-row:1 / -1;color:var(--language-accent, var(--green));stroke-width:2.4}.completion-stat-card strong{min-width:0;color:var(--ink);font-size:1.3rem;line-height:1;font-weight:900}.completion-stat-card span{min-width:0;color:var(--muted);font-size:.66rem;font-weight:900;letter-spacing:.04em;text-transform:uppercase}.completion-actions{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:4px}.completion-actions button{display:inline-flex;gap:8px;align-items:center;justify-content:center;min-height:44px;padding:0 16px;border:1px solid transparent;border-radius:8px;font-size:.86rem;font-weight:900;cursor:pointer;transition:transform .1s ease,background-color .16s,border-color .16s}.completion-actions button:active{transform:scale(.97)}.completion-primary{color:var(--active-text);background:var(--active-bg)}.completion-primary:hover{background:color-mix(in srgb,var(--active-bg) 90%,black)}.completion-secondary{color:var(--ink);background:var(--control-strong);border-color:var(--panel-border)!important}.completion-secondary:hover{background:color-mix(in srgb,var(--control-strong) 92%,black);border-color:#14201c40!important}@keyframes celebration-pop{0%{opacity:0;transform:translateY(10px) scale(.96)}to{opacity:1;transform:translateY(0) scale(1)}}@keyframes timer-pulse{0%,to{transform:scale(1);opacity:.4}50%{transform:scale(1.15);opacity:0}}.timer-ring-btn{cursor:pointer;position:relative;width:40px;height:40px;padding:0;border:none;border-radius:50%;background:transparent;display:inline-flex;align-items:center;justify-content:center;outline:none;flex-shrink:0;transition:transform .1s ease,background-color .2s}.timer-ring-btn:hover{background:var(--panel-border)!important}.timer-ring-btn:active{transform:scale(.9)}.timer-ring-svg{position:absolute;top:0;left:0;transform:rotate(-90deg)}.timer-ring-progress{transition:stroke-dashoffset .3s ease,stroke .3s ease}.timer-ring-progress[data-ticking=true]{transition:stroke-dashoffset 1s linear,stroke .3s ease}.timer-ring-icon{position:relative;z-index:1;transition:color .2s,opacity .2s}.timer-pulse-ring{position:absolute;top:-2px;right:-2px;bottom:-2px;left:-2px;border-radius:50%;border:2px solid var(--red);opacity:.4;animation:timer-pulse 1s ease-in-out infinite}.app-topbar,.session-bar,.trainer-panel,.verb-list-panel,.conjugation-panel,.stats-hero,.stats-kpi-grid article,.stats-trend-card,.stats-today-card,.stats-review-card,.stats-loading-card,.progress-card,.score-grid,.review-card{border:1px solid var(--panel-border);border-radius:8px;background:var(--panel);box-shadow:var(--shadow)}.app-topbar{position:sticky;top:18px;display:grid;grid-template-columns:1fr;grid-template-rows:auto auto auto minmax(0,1fr);gap:16px;align-items:stretch;align-content:start;min-height:calc(100vh - 46px);padding:14px}.brand-lockup{display:inline-flex;gap:10px;align-items:center;min-width:158px}.brand-lockup img{width:46px;height:46px;border-radius:8px;object-fit:cover;box-shadow:0 10px 22px #14201c2b}.brand-lockup strong,.brand-lockup span{display:block}.brand-lockup strong{color:var(--ink);font-size:1.08rem;font-weight:900}.brand-lockup span{margin-top:2px;color:var(--muted);font-size:.76rem;font-weight:800;text-transform:uppercase}.language-tabs{display:grid;grid-template-columns:1fr;gap:8px;margin-top:4px;padding:14px 5px 0;border-top:1px solid var(--panel-border)}.language-tabs-title{color:var(--muted);font-size:.68rem;font-weight:900;line-height:1;text-transform:uppercase}.tab-button,.view-button,.segment-button,.book-tense-button,.verb-list-item,.reset-button,.choice-card,.next-button{border:0;border-radius:8px;transition:transform .16s ease,border-color .16s ease,background .16s ease,color .16s ease,box-shadow .16s ease}.tab-button{display:inline-flex;align-items:center;justify-content:flex-start;min-height:42px;padding:0 12px;border:1px solid transparent;border-radius:6px;color:var(--muted);background:transparent;font-size:.86rem;font-weight:800}.tab-button[data-active=true]{border-color:color-mix(in srgb,var(--accent) 34%,transparent);color:var(--accent);background:color-mix(in srgb,var(--accent) 12%,var(--active-bg));box-shadow:none}.language-select-wrapper{display:none}.language-select{appearance:none;-webkit-appearance:none;-moz-appearance:none;min-height:40px;min-width:120px;padding:0 36px 0 16px;font-size:.88rem;font-weight:900;color:var(--ink);background-color:var(--button-surface);border:1px solid var(--subtle-border);border-radius:8px;cursor:pointer;font-family:inherit;outline:none;transition:border-color .16s ease,box-shadow .16s ease;background-image:url("data:image/svg+xml;charset=UTF-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='%2366736d' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 12px center;background-size:14px}:root[data-theme=dark] .language-select{background-image:url("data:image/svg+xml;charset=UTF-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='%2394a3b8' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E")}.language-select:focus,.language-select:hover{border-color:var(--language-accent, var(--green))}.view-switch{display:grid;grid-template-columns:1fr;align-content:start;gap:6px;padding:5px;border:1px solid var(--panel-border);border-radius:8px;background:var(--control)}.view-button{display:inline-flex;gap:7px;align-items:center;justify-content:flex-start;min-height:40px;padding:0 12px;border:1px solid transparent;color:var(--muted);background:transparent;font-size:.84rem;font-weight:900;white-space:nowrap}.view-button[data-active=true]{color:var(--ink);border-color:color-mix(in srgb,var(--language-accent, var(--green)) 38%,var(--panel-border));background:color-mix(in srgb,var(--language-accent, var(--green)) 12%,var(--active-bg));box-shadow:inset 0 0 0 1px color-mix(in srgb,var(--language-accent, var(--green)) 10%,transparent)}.view-button[data-active=true] svg{color:var(--language-accent, var(--green));stroke-width:2.4}.theme-toggle{align-self:end;justify-self:start;display:grid;place-items:center;width:36px;height:36px;margin-top:auto;border:1px solid var(--subtle-border);border-radius:999px;color:var(--muted);background:var(--button-surface);cursor:pointer;transition:color .16s ease,background .16s ease,border-color .16s ease,transform .16s ease}.theme-toggle:hover{color:var(--ink);border-color:var(--language-accent, var(--green));transform:translateY(-1px)}.mobile-status,.mobile-menu-button,.mobile-menu-panel{display:none}.mobile-status strong,.mobile-status span,.mobile-menu-section>span{display:block}.session-bar{display:grid;grid-template-columns:minmax(280px,520px) auto;gap:12px;align-items:center;justify-content:space-between;margin-top:0;padding:12px}.segmented-control{display:flex;gap:6px;padding:5px;border:1px solid var(--panel-border);border-radius:8px;background:var(--control)}.segment-button{flex:1 1 0%;min-height:40px;color:var(--muted);background:transparent;font-size:.84rem;font-weight:900;white-space:nowrap}.segment-button[data-active=true]{color:var(--ink);background:var(--button-surface);box-shadow:var(--shadow)}.reset-button{display:grid;place-items:center;width:40px;height:40px;min-height:40px;padding:0;color:var(--ink);background:var(--control-strong);font-weight:900;border-radius:8px}.reset-button-text{display:none}.practice-layout{display:grid;grid-template-columns:minmax(0,1fr) 310px;gap:14px;margin-top:14px;align-items:start}.wordbook-layout{display:grid;grid-template-columns:minmax(250px,310px) minmax(0,1fr);gap:14px;margin-top:0;align-items:start;min-height:min(720px,calc(100vh - 112px))}.verb-list-panel,.conjugation-panel{padding:clamp(16px,3vw,24px)}.verb-list-panel{position:sticky;top:12px;display:grid;grid-template-rows:auto auto auto minmax(0,1fr);gap:12px;height:min(720px,calc(100vh - 112px));min-height:520px;overflow:hidden}.wordbook-heading{display:flex;gap:12px;align-items:end;justify-content:space-between}.wordbook-heading h1{margin:4px 0 0;color:var(--ink);font-family:Manrope,sans-serif;font-size:clamp(1.24rem,2.2vw,1.6rem);line-height:1.05;font-weight:900;letter-spacing:0}.wordbook-heading>span{display:inline-flex;flex:0 0 auto;align-items:center;min-height:28px;padding:0 9px;border-radius:999px;color:var(--language-accent, var(--green));background:color-mix(in srgb,var(--language-accent, var(--green)) 10%,var(--mix-base));font-size:.76rem;font-weight:900}.conjugation-head p{margin:0;color:var(--muted);font-weight:800}.wordbook-search{display:grid;grid-template-columns:auto minmax(0,1fr);gap:8px;align-items:center;min-height:40px;padding:0 11px;border:1px solid var(--panel-border);border-radius:8px;color:var(--muted);background:var(--field-surface)}.wordbook-search:focus-within{border-color:var(--language-accent, var(--green));box-shadow:0 0 0 3px color-mix(in srgb,var(--language-accent, var(--green)) 13%,transparent)}.wordbook-search input{width:100%;min-width:0;border:0;outline:0;color:var(--ink);background:transparent;font:inherit;font-size:.88rem;font-weight:800}.wordbook-search input::placeholder{color:color-mix(in srgb,var(--muted) 74%,var(--mix-base))}.verb-list{display:grid;align-content:start;gap:6px;min-height:0;padding:2px 5px 2px 0;overflow-y:auto;scrollbar-color:color-mix(in srgb,var(--language-accent, var(--green)) 52%,#d8d0c0) transparent;scrollbar-width:thin}.verb-list-item{display:grid;grid-template-columns:32px minmax(0,1fr);gap:2px 12px;align-items:center;min-height:56px;padding:10px 12px;border:1px solid var(--panel-border);color:var(--ink);background:var(--button-surface);text-align:left}.verb-list-item:hover{transform:translateY(-1px);border-color:var(--language-accent, var(--green))}.verb-list-item[data-active=true]{border-color:var(--language-accent, var(--green));background:color-mix(in srgb,var(--language-accent, var(--green)) 8%,var(--mix-base))}.verb-list-item strong,.verb-list-item span{display:block}.verb-list-number{grid-row:1 / 3;align-self:center;width:32px;height:32px;display:grid;place-items:center;border-radius:6px;color:var(--muted);background:var(--control);font-size:.74rem;font-weight:900}.verb-list-item[data-active=true] .verb-list-number{color:var(--on-accent);background:var(--language-accent, var(--green))}.verb-list-item strong{min-width:0;overflow:hidden;font-size:.98rem;font-weight:900;text-overflow:ellipsis;white-space:nowrap}.verb-list-item>span:not(.verb-list-number){min-width:0;overflow:hidden;color:var(--muted);font-size:.78rem;font-weight:800;text-overflow:ellipsis;white-space:nowrap}.conjugation-panel{position:sticky;top:12px;min-height:560px;background:radial-gradient(circle at 92% 10%,color-mix(in srgb,var(--language-accent, var(--green)) 16%,transparent),transparent 28%),var(--panel-strong)}.conjugation-head{display:grid;grid-template-columns:minmax(0,1fr) minmax(260px,420px);gap:18px;align-items:start}.conjugation-head h2{margin:8px 0 12px;max-width:100%;overflow-wrap:anywhere;color:var(--ink);font-family:Lora,serif;font-size:clamp(1.8rem,4vw,3.2rem);line-height:1.03;letter-spacing:0}.book-tense-tabs{display:flex;gap:6px;padding:5px;border:1px solid var(--panel-border);border-radius:8px;background:var(--control)}.book-tense-button{flex:1 1 0%;min-height:42px;color:var(--muted);background:transparent;font-size:.84rem;font-weight:900;white-space:nowrap}.book-tense-button[data-active=true]{color:var(--on-accent);background:var(--language-accent, var(--green))}.conjugation-table{display:grid;gap:10px;margin-top:26px}.conjugation-row{display:grid;grid-template-columns:minmax(132px,.42fr) minmax(0,1fr);gap:12px;align-items:center;min-height:72px;padding:14px 16px;border:1px solid var(--subtle-border);border-radius:8px;background:var(--button-surface)}.conjugation-row span{display:inline-flex;align-items:center;width:fit-content;max-width:100%;min-height:34px;padding:0 10px;border-radius:999px;overflow-wrap:anywhere;color:color-mix(in srgb,var(--ink) 78%,var(--muted));background:color-mix(in srgb,var(--language-accent, var(--green)) 8%,var(--mix-base));font-size:clamp(.98rem,1.45vw,1.16rem);line-height:1.12;font-weight:900}.conjugation-row strong{min-width:0;overflow-wrap:anywhere;color:var(--ink);font-size:clamp(1.2rem,3vw,1.7rem);font-weight:900}.trainer-panel{container:trainer-panel / inline-size;min-height:600px;padding:clamp(18px,2.4vw,26px);background:linear-gradient(135deg,var(--panel-strong),var(--panel)),linear-gradient(90deg,transparent 0 49%,var(--body-rule) 49% 51%,transparent 51% 100%)}.trainer-head{display:flex;gap:14px;align-items:center;justify-content:space-between}.eyebrow{color:var(--language-accent, var(--green));font-size:.78rem;font-weight:900;letter-spacing:0;text-transform:uppercase}.trainer-head h1{margin:4px 0 0;color:var(--ink);font-family:Manrope,sans-serif;font-size:clamp(1.35rem,2.4vw,1.9rem);line-height:1.12;font-weight:900;letter-spacing:0}.prompt-card{display:grid;margin-top:20px;padding:clamp(18px,3vw,26px);border:1px solid var(--panel-border);border-radius:8px;background:repeating-linear-gradient(0deg,transparent 0 34px,var(--body-rule) 35px 36px),linear-gradient(180deg,var(--panel-strong),var(--button-surface)),var(--button-surface);box-shadow:inset 0 1px color-mix(in srgb,var(--paper-strong) 70%,transparent);position:relative;overflow:hidden}.timer-progress-bar{position:absolute;top:0;left:0;height:4px;background:var(--language-accent, var(--green));transition:width 1s linear,background-color .2s ease;z-index:10}.timer-progress-bar[data-alert=true]{background:var(--red)}.prompt-main-stack{display:grid;grid-template-columns:1fr;gap:16px;width:100%}.prompt-context-row{display:flex;justify-content:space-between;align-items:center;width:100%}.prompt-meta-tags{display:flex;gap:7px;align-items:center}.mixed-mode-tag{background:var(--gold)!important;color:#111!important}.prompt-main{display:grid;grid-template-columns:minmax(0,1fr) minmax(220px,.72fr);gap:18px 22px;align-items:center;min-width:0}.prompt-main.prompt-main-stack{grid-template-columns:minmax(0,1fr)}.prompt-context{grid-column:1 / -1;display:flex;flex-wrap:wrap;gap:7px}.prompt-context span{display:inline-flex;align-items:center;min-height:30px;padding:0 10px;border-radius:999px;color:var(--language-accent, var(--green));background:color-mix(in srgb,var(--language-accent, var(--green)) 15%,var(--mix-base));font-size:.76rem;font-weight:900;text-transform:uppercase}.tense-badge{border:1px solid 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