:root{box-sizing:border-box}*,*:before,*:after{box-sizing:inherit}:root{--color-bg: #0a0b10;--color-surface: rgba(22, 24, 34, .6);--color-surface-solid: #161822;--color-text-main: #eaddcf;--color-text-sub: #949ba4;--color-accent-primary: #a3b18a;--color-accent-secondary: #d4a373;--color-accent-glow: rgba(163, 177, 138, .15);--color-danger: #e57373;--color-success: #81c784;--texture-opacity: .03;--font-heading: "Libre Baskerville", serif;--font-body: "Nunito", sans-serif;--spacing-xs: 4px;--spacing-sm: 8px;--spacing-md: 16px;--spacing-lg: 24px;--spacing-xl: 32px;--spacing-xxl: 64px;--radius-sm: 8px;--radius-md: 16px;--radius-lg: 24px;--radius-full: 9999px;--shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, .3);--shadow-md: 0 10px 30px -5px rgba(0, 0, 0, .4);--shadow-glow: 0 0 20px var(--color-accent-glow);--glass-border: 1px solid rgba(255, 255, 255, .08);--backdrop-blur: blur(12px)}.light-mode{--color-bg: #f5f2eb;--color-surface: rgba(255, 255, 255, .85);--color-surface-solid: #ffffff;--color-text-main: #2c2420;--color-text-sub: #5e5048;--color-accent-primary: #5c6b48;--color-accent-secondary: #000000;--color-accent-glow: rgba(92, 107, 72, .2);--texture-opacity: .15;--glass-border: 1px solid rgba(0, 0, 0, .08);--shadow-sm: 0 4px 6px -1px rgba(44, 36, 32, .1);--shadow-md: 0 10px 30px -5px rgba(44, 36, 32, .12)}body{background-color:var(--color-bg);background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='400' height='400' opacity='1'%3E%3Cfilter id='paper' x='0%25' y='0%25' width='100%25' height='100%25'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='3' result='noise'/%3E%3CfeDiffuseLighting in='noise' lighting-color='white' surfaceScale='2'%3E%3CfeDistantLight azimuth='45' elevation='60'/%3E%3C/feDiffuseLighting%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23paper)'/%3E%3C/svg%3E");background-blend-mode:multiply;color:var(--color-text-main);font-family:var(--font-body);margin:0;padding:0;-webkit-font-smoothing:antialiased;min-height:100vh;overflow-x:hidden;position:relative}body:before{content:"";position:absolute;top:0;left:0;width:100%;height:100%;pointer-events:none;background-image:inherit;opacity:var(--texture-opacity);z-index:-1}body{background-image:none;background-color:var(--color-bg)}h1,h2,h3,h4,h5,h6{font-family:var(--font-heading);font-weight:700;margin:0 0 var(--spacing-md) 0;color:var(--color-text-main)}p{line-height:1.6;margin-bottom:var(--spacing-md);color:var(--color-text-sub)}button{cursor:pointer;border:none;font-family:var(--font-body);transition:all .2s ease}.container{max-width:520px;margin:0 auto;padding:var(--spacing-lg);min-height:100vh;display:flex;flex-direction:column}.glass-panel{background:var(--color-surface);backdrop-filter:var(--backdrop-blur);-webkit-backdrop-filter:var(--backdrop-blur);border:var(--glass-border);box-shadow:var(--shadow-sm);border-radius:var(--radius-lg)}.text-center{text-align:center}.flex-center{display:flex;align-items:center;justify-content:center}.hidden{display:none!important}.app-header-action{pointer-events:auto;background:var(--color-surface);color:var(--color-text-main);border:var(--glass-border);border-radius:var(--radius-full);min-height:40px;padding:0 14px;display:inline-flex;align-items:center;justify-content:center;gap:8px;box-shadow:var(--shadow-sm);font-size:.95rem;font-weight:800;backdrop-filter:var(--backdrop-blur);-webkit-backdrop-filter:var(--backdrop-blur)}.app-header-action:hover{transform:translateY(-1px);border-color:var(--color-accent-primary);color:var(--color-accent-primary)}.my-words-screen{width:100%;min-height:calc(100vh - 64px);padding:var(--spacing-lg);display:flex;align-items:flex-start;justify-content:center}.my-words-shell{width:min(960px,100%);margin:var(--spacing-lg) auto var(--spacing-xxl);padding:clamp(20px,4vw,40px)}.my-words-header{display:flex;align-items:flex-start;justify-content:space-between;gap:var(--spacing-lg);margin-bottom:var(--spacing-xl)}.my-words-header h2{font-size:clamp(2rem,6vw,3.4rem);line-height:1;margin-bottom:var(--spacing-sm)}.my-words-header p{max-width:520px;margin:0}.my-words-back,.my-words-submit,.saved-word-delete{border:var(--glass-border);border-radius:var(--radius-md);font-weight:800}.my-words-back{flex:0 0 auto;background:transparent;color:var(--color-text-main);padding:12px 16px}.my-words-back:hover{color:var(--color-accent-primary);border-color:var(--color-accent-primary)}.my-words-form{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:var(--spacing-md);padding:var(--spacing-lg);border-radius:var(--radius-lg);background:#ffffff08;border:var(--glass-border);margin-bottom:var(--spacing-xl)}.my-words-form label{display:flex;flex-direction:column;gap:8px;color:var(--color-text-sub);font-size:.82rem;font-weight:800;text-transform:uppercase;letter-spacing:.06em}.my-words-form input,.my-words-form textarea{width:100%;border:var(--glass-border);border-radius:var(--radius-md);background:var(--color-surface);color:var(--color-text-main);padding:13px 14px;font:inherit;font-size:1rem;outline:none;resize:vertical}.my-words-form input:focus,.my-words-form textarea:focus{border-color:var(--color-accent-primary);box-shadow:0 0 0 3px var(--color-accent-glow)}.my-words-example-field,.my-words-submit,.my-words-feedback{grid-column:1 / -1}.my-words-submit{background:var(--color-accent-primary);color:#fff;padding:14px 18px;box-shadow:var(--shadow-sm)}.my-words-submit:hover{filter:brightness(1.08);transform:translateY(-1px)}.my-words-feedback{min-height:1.2em;margin:0;font-size:.92rem;color:var(--color-accent-secondary)}.my-words-list-head{display:flex;align-items:center;justify-content:space-between;gap:var(--spacing-md);margin-bottom:var(--spacing-md)}.my-words-list-head h3{margin:0;font-size:1.25rem}.my-words-list-head span{color:var(--color-text-sub);font-size:.9rem;font-weight:800}.my-words-list{display:grid;gap:var(--spacing-md)}.saved-word-card,.my-words-empty{border:var(--glass-border);border-radius:var(--radius-lg);background:var(--color-surface);box-shadow:var(--shadow-sm)}.saved-word-card{display:flex;justify-content:space-between;gap:var(--spacing-lg);padding:var(--spacing-lg)}.saved-word-content{min-width:0}.saved-word-content h4{margin:0 0 6px;color:var(--color-text-main);font-family:var(--font-heading);font-size:1.4rem;overflow-wrap:anywhere}.saved-word-meaning,.saved-word-example{margin:0;overflow-wrap:anywhere}.saved-word-meaning{color:var(--color-text-main);font-weight:700}.saved-word-example{color:var(--color-text-sub);margin-top:8px}.saved-word-delete{align-self:flex-start;background:transparent;color:var(--color-danger);padding:10px 12px}.saved-word-delete:hover{background:#e573731f}.my-words-empty{padding:var(--spacing-xl);display:flex;flex-direction:column;gap:6px;text-align:center;color:var(--color-text-sub)}.my-words-empty strong{color:var(--color-text-main);font-size:1.1rem}.saved-word-toast{position:fixed;top:22%;left:50%;transform:translate(-50%);z-index:10000;background:var(--color-surface);color:var(--color-text-main);border:var(--glass-border);border-radius:var(--radius-full);box-shadow:var(--shadow-sm);backdrop-filter:var(--backdrop-blur);-webkit-backdrop-filter:var(--backdrop-blur);padding:12px 18px;font-size:.98rem;font-weight:800;line-height:1.2;opacity:1;transition:opacity .25s ease}.saved-word-toast.saved-word-toast--hiding{opacity:0}.progress-screen{width:100%;min-height:calc(100vh - 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