:root,[data-theme=light]{color-scheme:light;--bg:#ebe6df;--bg-gradient:linear-gradient(165deg,#f0ebe4,#e4ddd4 45%,#ddd5cb);--panel:rgba(255,252,248,0.72);--panel-elevated:rgba(255,255,255,0.88);--glass:rgba(255,255,255,0.45);--glass-border:rgba(255,255,255,0.55);--border:rgba(90,82,74,0.14);--border-subtle:rgba(90,82,74,0.08);--text:#1f2428;--text-muted:#5c6570;--accent:#b84545;--accent-hover:#9f3838;--accent-soft:rgba(184,69,69,0.12);--danger:#b83232;--success:#2d6a4f;--shadow-sm:0 1px 2px rgba(31,36,40,0.06);--shadow-md:0 8px 32px rgba(31,36,40,0.1);--radius:14px;--radius-sm:9px}[data-theme=dark]{color-scheme:dark;--bg:#121418;--bg-gradient:linear-gradient(165deg,#161a20,#121418 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(prefers-reduced-motion:reduce){.app-panel,.btn,.glass-panel,.theme-toggle{transition:none!important}}.app-shell{max-width:1200px;margin:0 auto;padding:24px 16px 48px;transition:margin-right .25s ease}.app-shell--history-open{margin-right:min(380px,92vw)}@media (max-width:900px){.app-shell--history-open{margin-right:0}}.app-hero{margin-bottom:28px}.app-hero h1{font-size:1.5rem;font-weight:700;margin:0 0 8px;letter-spacing:-.02em;color:var(--text)}.app-hero p{margin:0;color:var(--text-muted);font-size:15px;line-height:1.55;max-width:52ch}.app-grid{display:grid;grid-gap:20px;gap:20px;align-items:start}@media (min-width:960px){.app-grid--main{grid-template-columns:minmax(0,1fr) minmax(320px,380px)}}.app-aside{position:-webkit-sticky;position:sticky;top:16px;align-self:start}@media (max-width:959px){.app-aside{position:static}}.app-panel{background:var(--panel);backdrop-filter:blur(14px) saturate(1.2);-webkit-backdrop-filter:blur(14px) saturate(1.2);border:1px solid var(--border);border-radius:var(--radius);padding:20px;box-shadow:var(--shadow-sm);transition:background .2s ease,border-color .2s ease}.app-panel h2,.app-section-title{font-size:1rem;font-weight:600;margin:0 0 16px;color:var(--text)}.app-label{display:block;font-weight:600;margin-bottom:8px;font-size:14px;color:var(--text)}.app-input{width:100%;padding:10px 12px;border-radius:var(--radius-sm);border:1px solid var(--border);font-size:15px;font-family:inherit;background:var(--panel-elevated);color:var(--text)}.app-input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}.app-input--narrow{max-width:400px}.btn{display:inline-flex;align-items:center;justify-content:center;padding:10px 18px;font-size:15px;font-weight:600;font-family:inherit;border-radius:var(--radius-sm);border:none;cursor:pointer;transition:background .15s ease,transform .1s ease}.btn:disabled{cursor:not-allowed;opacity:.65}.btn--primary{color:#fff;background:var(--accent)}.btn--primary:hover:not(:disabled){background:var(--accent-hover)}.btn--secondary{color:var(--text);background:var(--panel-elevated);border:1px solid var(--border)}.btn--secondary:hover:not(:disabled){background:var(--bg)}.btn--lg{padding:12px 24px;font-size:16px;border-radius:10px}.text-error{color:var(--danger);font-size:14px;margin-top:12px}.theme-toggle{display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;padding:0;border-radius:10px;border:1px solid var(--border);background:var(--panel-elevated);color:var(--text);cursor:pointer;transition:background .15s ease,border-color .15s ease}.theme-toggle:hover{background:var(--panel);border-color:var(--accent-soft)}@keyframes appVaultReveal{0%{opacity:.92;transform:scale(.985)}to{opacity:1;transform:scale(1)}}.app-unlocked-shell{animation:appVaultReveal .45s cubic-bezier(.22,1,.36,1) forwards}@media (prefers-reduced-motion:reduce){.app-unlocked-shell{animation:none}}.rich-editor-wrap{margin-bottom:16px}.rich-editor-surface{border:1px solid var(--border);border-radius:var(--radius-sm);background:var(--panel-elevated);box-shadow:inset 0 1px 2px rgba(0,0,0,.04)}[data-theme=dark] .rich-editor-surface{box-shadow:inset 0 1px 2px rgba(0,0,0,.25)}.app-header .theme-toggle{flex-shrink:0}.history-sidebar-backdrop{position:fixed;inset:0;z-index:180;margin:0;padding:0;border:none;background:rgba(0,0,0,.25);backdrop-filter:blur(2px);-webkit-backdrop-filter:blur(2px);cursor:pointer}@media (min-width:901px){.history-sidebar-backdrop{display:none}}.history-sidebar{position:fixed;top:0;right:0;z-index:200;width:min(380px,100vw);height:100vh;height:100dvh;margin:0;padding:20px;overflow:hidden auto;border-radius:0;border-left:1px solid var(--border);transform:translateX(100%);transition:transform .28s cubic-bezier(.22,1,.36,1)}.history-sidebar--open{transform:translateX(0)}.history-sidebar-toggle.is-active{border-color:var(--accent);box-shadow:0 0 0 2px var(--accent-soft)}.history-badge{display:inline-flex;align-items:center;justify-content:center;min-width:20px;height:20px;padding:0 6px;font-size:11px;font-weight:700;border-radius:999px;background:var(--accent-soft);color:var(--accent)}@media (prefers-reduced-motion:reduce){.history-sidebar{transition:none}}.photo-preview-stage{position:-webkit-sticky;position:sticky;top:8px;z-index:3;margin-bottom:12px;padding:12px;border-radius:var(--radius-sm);border:1px solid var(--border);background:var(--panel-elevated);box-shadow:var(--shadow-sm)}.visually-hidden{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.session-unlock-overlay{--unlock-axis-x:50vw;--unlock-origin-y:48vh;position:fixed;inset:0;z-index:9999;display:flex;align-items:center;justify-content:center;padding:24px;background:linear-gradient(180deg,rgba(180,176,168,.55),rgba(140,135,128,.65));backdrop-filter:blur(24px) saturate(1.2);-webkit-backdrop-filter:blur(24px) saturate(1.2);transition:background .35s ease,-webkit-backdrop-filter .35s ease;transition:background .35s ease,backdrop-filter .35s ease;transition:background .35s ease,backdrop-filter .35s ease,-webkit-backdrop-filter .35s ease}[data-theme=dark] .session-unlock-overlay{background:linear-gradient(180deg,rgba(20,22,28,.88),rgba(10,12,16,.92))}.session-unlock-overlay--splitting{background:transparent;backdrop-filter:none;-webkit-backdrop-filter:none}.session-unlock-fireworks{position:fixed;left:var(--unlock-axis-x);top:var(--unlock-origin-y);transform:translate(-50%,-50%);width:0;height:0;z-index:12;pointer-events:none;overflow:visible}.session-unlock-spark{position:absolute;left:0;top:0;width:8px;height:8px;margin:-4px 0 0 -4px;border-radius:50%;background:radial-gradient(circle at 32% 28%,rgba(255,255,255,.95),hsl(var(--hue,210),92%,68%));box-shadow:0 0 8px hsl(var(--hue,210),100%,62%),0 0 18px hsla(var(--hue,210),95%,58%,.55);animation:sessionUnlockSparkFly 1.08s cubic-bezier(.12,.82,.22,1) forwards}.session-unlock-spark--late{width:6px;height:6px;margin:-3px 0 0 -3px;animation-name:sessionUnlockSparkFlyLate;animation-duration:.92s}@keyframes sessionUnlockSparkFly{0%{transform:rotate(var(--ang)) translateY(0) scale(1);opacity:1;filter:brightness(1.25) saturate(1.2)}55%{opacity:.92}to{transform:rotate(var(--ang)) translateY(-148px) scale(.12);opacity:0}}@keyframes sessionUnlockSparkFlyLate{0%{transform:rotate(var(--ang)) translateY(4px) scale(.35);opacity:0}12%{opacity:1}to{transform:rotate(var(--ang)) translateY(-128px) scale(.08);opacity:0}}.session-unlock-flash-ring{position:absolute;left:50%;top:50%;width:22px;height:22px;margin:-11px 0 0 -11px;border-radius:50%;border:2px solid rgba(255,215,130,.95);box-shadow:0 0 16px rgba(255,200,90,.75),0 0 36px rgba(255,180,60,.35);animation:sessionUnlockRingFlash .92s ease-out forwards;pointer-events:none}.session-unlock-flash-ring--b{animation-delay:.14s;border-color:rgba(130,200,255,.88);box-shadow:0 0 18px rgba(120,190,255,.55),0 0 40px rgba(80,160,255,.3)}.session-unlock-flash-ring--c{animation-delay:.3s;animation-duration:1.05s;border-color:rgba(255,140,210,.78);box-shadow:0 0 20px rgba(255,120,190,.45),0 0 44px rgba(255,100,180,.25)}@keyframes sessionUnlockRingFlash{0%{transform:scale(.25);opacity:.95}to{transform:scale(17);opacity:0}}.session-unlock-curtain{position:fixed;top:0;height:100%;z-index:5;background:linear-gradient(180deg,rgba(180,176,168,.92),rgba(140,135,128,.96));backdrop-filter:blur(22px) saturate(1.15);-webkit-backdrop-filter:blur(22px) saturate(1.15);transition:transform .68s cubic-bezier(.22,1,.36,1);will-change:transform}[data-theme=dark] .session-unlock-curtain{background:linear-gradient(180deg,rgba(20,22,28,.96),rgba(10,12,16,.98))}.session-unlock-curtain--left{left:0;width:var(--unlock-axis-x);transform:translateX(0);transform-origin:100% 50%}.session-unlock-curtain--right{left:var(--unlock-axis-x);width:calc(100vw - var(--unlock-axis-x));transform:translateX(0);transform-origin:0 50%}.session-unlock-overlay--splitting .session-unlock-curtain--left{transform:translateX(-100%)}.session-unlock-overlay--splitting .session-unlock-curtain--right{transform:translateX(100%)}.session-unlock-loading{padding:28px 36px;border-radius:16px;max-width:320px}.session-unlock-card{position:relative;z-index:10;width:100%;max-width:520px;text-align:center;transition:opacity .28s ease}.session-unlock-card--exit{opacity:0;pointer-events:none}.session-unlock-brand{margin:0 0 8px;font-size:1.35rem;font-weight:700;letter-spacing:-.03em;color:var(--text)}.session-unlock-hint{margin:0 0 28px;font-size:13px;color:var(--text-muted);line-height:1.5}.session-unlock-bar{display:flex;align-items:stretch;min-height:52px;border-radius:999px;background:linear-gradient(180deg,#f7f5f2,#e8e4dd);box-shadow:inset 0 2px 4px rgba(255,255,255,.75),inset 0 -2px 6px rgba(0,0,0,.08),0 4px 18px rgba(0,0,0,.12);border:1px solid rgba(0,0,0,.08);overflow:hidden;transition:transform .35s cubic-bezier(.22,1,.36,1),box-shadow .35s ease}[data-theme=dark] .session-unlock-bar{background:linear-gradient(180deg,#2c3038,#1f232a);box-shadow:inset 0 1px 2px rgba(255,255,255,.06),inset 0 -2px 8px rgba(0,0,0,.35),0 6px 24px rgba(0,0,0,.45);border-color:rgba(255,255,255,.08)}.session-unlock-bar--shake{animation:sessionUnlockShake .45s cubic-bezier(.36,.07,.19,.97) both}@keyframes sessionUnlockShake{0%,to{transform:translateX(0)}20%,60%{transform:translateX(-6px)}40%,80%{transform:translateX(6px)}}.session-unlock-keyhole-wrap{position:relative;flex:0 0 56px;display:flex;align-items:center;justify-content:center;transform-origin:50% 50%}.session-unlock-keyhole-wrap--unlocking{animation:sessionUnlockLockHeadTurn .55s cubic-bezier(.34,1.15,.64,1) forwards}@keyframes sessionUnlockLockHeadTurn{0%{transform:rotate(0deg)}35%{transform:rotate(-28deg)}70%{transform:rotate(22deg)}to{transform:rotate(18deg)}}.session-unlock-keyhole-ring{position:absolute;width:46px;height:46px;border-radius:50%;background:radial-gradient(circle at 40% 35%,#6eb6ff 0,#2a7fff 45%,#1a5fd4 100%);box-shadow:inset 0 2px 4px rgba(255,255,255,.45),0 2px 8px rgba(30,120,255,.35);opacity:.95}.session-unlock-keyhole-ring--pulse{animation:sessionUnlockRingPulse .7s ease-out both}@keyframes sessionUnlockRingPulse{0%{transform:scale(1);filter:brightness(1)}40%{transform:scale(1.08);filter:brightness(1.15)}to{transform:scale(1.05);filter:brightness(1.05)}}.session-unlock-keyhole-face{position:relative;z-index:1;width:34px;height:34px;border-radius:50%;background:radial-gradient(circle at 35% 30%,#5a5e66 0,#2e3138 100%);display:flex;align-items:center;justify-content:center;color:#1a1d22;box-shadow:inset 0 2px 6px rgba(0,0,0,.45)}.session-unlock-keyhole-svg{width:14px;height:14px;opacity:.9}.session-unlock-field{flex:1 1;min-width:0;border:none;background:transparent;padding:0 12px;font-size:16px;font-family:inherit;color:var(--text);letter-spacing:.12em}.session-unlock-field::placeholder{color:var(--text-muted);letter-spacing:normal}.session-unlock-field:focus{outline:none}.session-unlock-submit{flex:0 0 52px;display:flex;align-items:center;justify-content:center;border:none;border-left:1px solid rgba(0,0,0,.08);background:linear-gradient(180deg,rgba(0,0,0,.03),rgba(0,0,0,.07));color:var(--text-muted);cursor:pointer;transition:color .15s ease,background .15s ease}[data-theme=dark] .session-unlock-submit{border-left-color:rgba(255,255,255,.1);background:linear-gradient(180deg,rgba(255,255,255,.04),rgba(0,0,0,.15))}.session-unlock-submit:hover{color:var(--accent);background:rgba(0,0,0,.04)}.session-unlock-submit--unlocking{color:var(--success)}.session-unlock-error{margin:14px 0 0;font-size:13px;color:var(--danger)}@media (prefers-reduced-motion:reduce){.session-unlock-bar--shake,.session-unlock-keyhole-ring--pulse,.session-unlock-keyhole-wrap--unlocking{animation:none!important}.session-unlock-flash-ring,.session-unlock-flash-ring--b,.session-unlock-flash-ring--c,.session-unlock-spark,.session-unlock-spark--late{animation:none!important;opacity:0!important}.session-unlock-curtain{transition:none!important}}