:root{font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;color:#171717;background:#f4f3ef;font-synthesis:none;--color-bg: #f4f3ef;--color-surface: #ffffff;--color-surface-elevated: rgba(255, 255, 255, .86);--color-text-primary: #171717;--color-text-secondary: #5d5d5d;--color-text-muted: #8a8a8a;--color-text-on-accent: #171717;--color-border: #e2e0da;--color-border-strong: #d3d0c8;--color-input-bg: #f6f5f2;--color-focus-ring: #171717;--color-focus-ring-glow: rgba(23, 23, 23, .08);--color-accent: #ffcc0a;--color-accent-strong: #e0b200;--color-destructive: #b3261e;--color-destructive-bg: #fdecea;--color-success: #188748;--color-success-bg: #e8f6ee;--color-warning: #92650a;--color-warning-bg: #fff2d6;--color-info: #2f5fa8;--color-info-bg: #eaf1fc;--shadow-card: 0 12px 32px rgba(0, 0, 0, .06);--shadow-elevated: 0 18px 50px rgba(0, 0, 0, .08);--radius-sm: 8px;--radius-md: 12px;--radius-lg: 16px;--radius-xl: 22px;--radius-pill: 999px;--space-1: 4px;--space-2: 8px;--space-3: 12px;--space-4: 16px;--space-5: 20px;--space-6: 24px;--space-7: 32px;--space-8: 48px;--control-height: 48px;--input-height: 52px;--width-auth: 440px;--width-content: 1120px;--width-narrow: 700px}:root[data-theme=dark]{--color-bg: #101010;--color-surface: #1c1c1e;--color-surface-elevated: rgba(32, 32, 32, .9);--color-text-primary: #f5f5f5;--color-text-secondary: #b8b8b8;--color-text-muted: #8f8f8f;--color-border: #333331;--color-border-strong: #444442;--color-input-bg: #232322;--color-focus-ring: #f5f5f5;--color-focus-ring-glow: rgba(245, 245, 245, .12);--color-destructive-bg: #3a1a17;--color-success-bg: #123423;--color-warning-bg: #33260a;--color-info-bg: #17253b}:root[data-theme=light]{--color-bg: #f4f3ef;--color-surface: #ffffff;--color-surface-elevated: rgba(255, 255, 255, .86);--color-text-primary: #171717;--color-text-secondary: #5d5d5d;--color-text-muted: #8a8a8a;--color-border: #e2e0da;--color-border-strong: #d3d0c8;--color-input-bg: #f6f5f2;--color-focus-ring: #171717;--color-focus-ring-glow: rgba(23, 23, 23, .08);--color-destructive-bg: #fdecea;--color-success-bg: #e8f6ee;--color-warning-bg: #fff2d6;--color-info-bg: #eaf1fc}:root[data-theme=sepia]{--color-bg: #f3ead9;--color-surface: #faf3e6;--color-surface-elevated: rgba(250, 243, 230, .92);--color-text-primary: #3a2c1c;--color-text-secondary: #6b5940;--color-text-muted: #8a7960;--color-border: #ddccab;--color-border-strong: #c9b98f;--color-input-bg: #f0e5cd;--color-focus-ring: #3a2c1c;--color-focus-ring-glow: rgba(58, 44, 28, .1);--color-destructive-bg: #f6ded6;--color-success-bg: #e4ecd4;--color-warning-bg: #f4e3c0;--color-info-bg: #e2e6d8}[data-theme=dark] .app-shell,[data-theme=light] .app-shell,[data-theme=sepia] .app-shell{background:var(--color-bg);color:var(--color-text-primary)}[data-theme=dark] .desktop-header,[data-theme=dark] .primary-card,[data-theme=dark] .simple-card,[data-theme=dark] .progress-card,[data-theme=dark] .search,[data-theme=dark] .study-tile,[data-theme=sepia] .desktop-header,[data-theme=sepia] .primary-card,[data-theme=sepia] .simple-card,[data-theme=sepia] .progress-card,[data-theme=sepia] .search,[data-theme=sepia] .study-tile{background:var(--color-surface-elevated);color:var(--color-text-primary)}[data-theme=dark] .mobile-header,[data-theme=sepia] .mobile-header{background:var(--color-surface-elevated);border-color:var(--color-border)}[data-theme=dark] .guest-prompt-card,[data-theme=sepia] .guest-prompt-card{background:var(--color-surface);color:var(--color-text-primary)}[data-theme=dark] .lesson-shell:not(.lesson-shell-question){background:#17171a;color:#f2f2f2}[data-theme=sepia] .lesson-shell:not(.lesson-shell-question){background:var(--color-bg);color:var(--color-text-primary)}[data-theme=light] .lesson-shell:not(.lesson-shell-question){background:#e8e8e6;color:#171717}*{box-sizing:border-box}body{margin:0;min-width:320px}button,input{font:inherit}button{cursor:pointer}.app-shell{min-height:100vh;background:radial-gradient(circle at 12% 10%,rgba(255,204,10,.13),transparent 25%),radial-gradient(circle at 90% 25%,rgba(120,71,219,.1),transparent 28%),#f6f5f1}.desktop-header{height:72px;display:flex;align-items:center;justify-content:space-between;padding:0 5vw;background:#ffffffc7;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);position:sticky;top:0;z-index:20;border-bottom:1px solid rgba(0,0,0,.06)}.brand{display:flex;gap:12px;align-items:center}.brand-mark{width:42px;height:42px;border-radius:50%;background:#111;color:#fff;display:grid;place-items:center;font-family:Georgia,serif;font-size:24px}.brand div{display:flex;flex-direction:column}.brand small{color:#777}.desktop-header nav{display:flex;gap:8px}.desktop-header nav button{border:0;background:transparent;padding:10px 16px;border-radius:999px}.desktop-header nav button:hover{background:#eee}.desktop-header nav button.active{background:#171717;color:#fff;font-weight:700}.desktop-header nav button:focus-visible{outline:2px solid var(--color-focus-ring);outline-offset:2px}.mobile-header{display:none}.hamburger-button{border:0;background:transparent;padding:10px;margin:0;border-radius:10px;display:flex;align-items:center;justify-content:center;width:44px;height:44px;color:#171717}.hamburger-button:hover{background:#0000000f}.hamburger-button:focus-visible{outline:2px solid #171717;outline-offset:2px}.hamburger-button svg{width:24px;height:24px}.mobile-nav-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;z-index:60;background:#00000059;display:flex;justify-content:flex-end}.mobile-nav-drawer{width:min(84vw,340px);height:100%;overflow-y:auto;background:#fff;box-shadow:-8px 0 30px #0000002e;padding:calc(16px + env(safe-area-inset-top)) 18px calc(16px + env(safe-area-inset-bottom));display:flex;flex-direction:column;gap:18px;animation:mobile-drawer-in .22s ease}@media(prefers-reduced-motion:reduce){.mobile-nav-drawer{animation:none}}@keyframes mobile-drawer-in{0%{transform:translate(24px);opacity:0}to{transform:translate(0);opacity:1}}.mobile-nav-list{display:flex;flex-direction:column;gap:4px}.mobile-nav-list button,.mobile-nav-list a.mobile-nav-admin-link{display:flex;align-items:center;gap:12px;border:0;background:transparent;text-decoration:none;color:#171717;padding:13px 12px;border-radius:12px;font-size:1rem;text-align:left;width:100%}.mobile-nav-list button:hover,.mobile-nav-list a.mobile-nav-admin-link:hover{background:#f2f2f2}.mobile-nav-list svg{width:20px;height:20px;flex:none}.mobile-nav-list .active{font-weight:800;background:#f2f2f2}.mobile-nav-list .active svg{color:var(--accent, #171717)}.mobile-nav-admin-link{color:#7847db!important;font-weight:700}.mobile-nav-signout{border-top:1px solid #eee;padding-top:14px;display:flex;flex-direction:column;gap:8px}.mobile-nav-signout button{display:flex;align-items:center;gap:12px;width:100%;border:0;background:transparent;color:#b3261e;font-weight:700;padding:13px 12px;border-radius:12px;text-align:left}.mobile-nav-signout button:hover{background:#fbe9e7}.mobile-nav-signout svg{width:20px;height:20px}.content-width{width:min(1120px,calc(100% - 40px));margin:auto}.narrow{width:min(700px,calc(100% - 40px))!important}.ui-button{display:inline-flex;align-items:center;justify-content:center;gap:var(--space-2);border-radius:var(--radius-md);height:var(--control-height);padding:0 var(--space-6);font-weight:700;font-size:.975rem;border:1.5px solid transparent;cursor:pointer;transition:background-color .15s ease,border-color .15s ease,opacity .15s ease,transform .1s ease}.ui-button-sm{height:40px;padding:0 var(--space-4);font-size:.9rem}.ui-button-full{width:100%}.ui-button:active:not(:disabled){transform:translateY(1px)}.ui-button:focus-visible{outline:2px solid var(--color-focus-ring);outline-offset:2px}.ui-button:disabled{opacity:.5;cursor:not-allowed}.ui-button svg{width:18px;height:18px;flex:none}.ui-button-spinner{animation:ui-spin .8s linear 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ease}.ui-field-input::placeholder{color:var(--color-text-muted)}.ui-field-input:focus{outline:none;border-color:var(--color-focus-ring);background:var(--color-surface);box-shadow:0 0 0 3px var(--color-focus-ring-glow)}.ui-field-input:disabled{opacity:.55;cursor:not-allowed}.ui-field-input-error{border-color:var(--color-destructive)}.ui-field-input-error:focus{box-shadow:0 0 0 3px #b3261e1f}.ui-field-textarea{height:auto;min-height:130px;padding-top:var(--space-3);resize:vertical;line-height:1.55}.ui-field-hint{font-size:.8rem;color:var(--color-text-muted);margin:0}.ui-field-error{font-size:.8rem;color:var(--color-destructive);margin:0;font-weight:600}.ui-password-field{position:relative;display:flex}.ui-password-field 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svg{width:17px;height:17px;color:var(--color-text-muted)}.recently-viewed-list{display:flex;flex-direction:column;gap:var(--space-2)}.recently-viewed-row{display:flex;justify-content:space-between;align-items:center;gap:var(--space-3);background:var(--color-input-bg);border:1px solid 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0;background:#222}.response-image.image-placeholder{height:190px;max-height:190px;background:linear-gradient(160deg,#2e2e2e,#1a1a1a)}.lesson-shell-question .lesson-page>.page-image{margin-bottom:22px}.question-header{display:flex;gap:16px;align-items:flex-start;margin-bottom:18px}.question-badge{flex:none;width:92px;height:92px;border-radius:50%;background:#fff;color:#202020;display:flex;align-items:center;justify-content:center;font-size:2.75rem;font-weight:700;border:10px solid var(--accent);box-shadow:0 0 0 2px #000;margin-left:-10px}.question-heading{flex:1;padding-top:4px;min-width:0;padding-left:4px}.question-heading .section-pill{margin-bottom:10px}.question-prompt{font-size:1.875rem;font-weight:900;line-height:1.18;margin:0 0 8px;color:#fff}.question-reference{color:#9a9a9a;font-weight:700;font-size:1.125rem;margin:0}.verse-card{background:#fff;color:#1d1d1d;border-radius:12px;padding:22px;font-family:SF Pro 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