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.2s}input[type=text]:focus,textarea:focus{ring:2px;ring-color:#4f46e533;border-color:var(--color-primary);outline:none}.elevation-1{box-shadow:var(--shadow-soft)}.elevation-2{box-shadow:var(--shadow-card)}.elevation-3{box-shadow:var(--shadow-card-hover)}.scrollbar-thin::-webkit-scrollbar{width:8px}.scrollbar-thin::-webkit-scrollbar-track{background-color:#f3f4f6;border-radius:9999px}.scrollbar-thin::-webkit-scrollbar-thumb{background-color:#d1d5db;border-radius:9999px}.scrollbar-thin::-webkit-scrollbar-thumb:hover{background-color:#9ca3af}.alphabet-page{max-width:1400px;margin:0 auto;padding:2rem 1rem}.page-header{text-align:center;margin-bottom:2rem}.page-header h1{color:#111827;margin-bottom:.5rem;font-size:2.5rem;font-weight:700}.page-subtitle{color:var(--color-secondary);font-size:1.125rem}.view-toggle{justify-content:center;gap:1rem;margin-bottom:2rem;display:flex}.toggle-btn{color:#4b5563;cursor:pointer;box-shadow:var(--shadow-soft);background-color:#fff;border:1px solid #e5e7eb;border-radius:.5rem;padding:.75rem 1.5rem;font-weight:500;transition:all .2s}.toggle-btn:hover{background-color:#f9fafb;border-color:#d1d5db}.toggle-btn.active{background:linear-gradient(to bottom right,var(--color-primary),var(--color-primary-dark));color:#fff;box-shadow:var(--shadow-card);border-color:#0000}.alphabet-grid{grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:1.5rem;margin-bottom:2rem;display:grid}.alphabet-card{border-radius:var(--radius-card);box-shadow:var(--shadow-card);text-align:center;cursor:pointer;background-color:#fff;border:1px solid #f3f4f6;padding:1.5rem;transition:all .2s}.alphabet-card:hover{box-shadow:var(--shadow-card-hover);border-color:var(--color-primary-light);transform:translateY(-2px)}.thai-character{font-family:var(--font-family-thai);color:var(--color-primary);margin-bottom:.5rem;font-size:4rem;font-weight:600;line-height:1.2}.alphabet-card .romanization{color:var(--color-secondary);margin-bottom:.75rem;font-size:1.125rem;font-weight:600}.character-info{border-top:1px solid #f3f4f6;margin-top:.75rem;padding-top:.75rem}.character-name{color:#4b5563;margin-bottom:.25rem;font-size:.875rem;font-weight:500}.character-meaning{color:var(--color-secondary-light);font-size:.75rem}.consonant-class-section{margin-bottom:3rem}.class-header{border-radius:var(--radius-card);background:linear-gradient(135deg,var(--color-primary-light),var(--color-primary-dark));color:#fff;margin-bottom:1.5rem;padding:1.5rem}.class-header.mid-class{background:linear-gradient(135deg,#10b981,#059669)}.class-header.high-class{background:linear-gradient(135deg,#3b82f6,#2563eb)}.class-header.low-class{background:linear-gradient(135deg,#f59e0b,#d97706)}.class-header h2{margin-bottom:.5rem;font-size:1.75rem;font-weight:700}.class-description{opacity:.95;font-size:.95rem;line-height:1.6}.learning-tip{border-radius:var(--radius-card);border-left:4px solid var(--color-accent);background:linear-gradient(135deg,#fef3c7,#fde68a);margin-top:3rem;padding:1.5rem}.learning-tip h3{color:#111827;align-items:center;gap:.5rem;margin-bottom:.75rem;font-size:1.25rem;font-weight:600;display:flex}.learning-tip p{color:#374151;font-size:.95rem;line-height:1.7}@media(max-width:768px){.alphabet-grid{grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:1rem}.thai-character{font-size:3rem}.page-header h1{font-size:2rem}.view-toggle{flex-direction:column}}@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-gradient-position{syntax:"*";inherits:false}@property --tw-gradient-from{syntax:"<color>";inherits:false;initial-value:#0000}@property --tw-gradient-via{syntax:"<color>";inherits:false;initial-value:#0000}@property --tw-gradient-to{syntax:"<color>";inherits:false;initial-value:#0000}@property --tw-gradient-stops{syntax:"*";inherits:false}@property --tw-gradient-via-stops{syntax:"*";inherits:false}@property --tw-gradient-from-position{syntax:"<length-percentage>";inherits:false;initial-value:0%}@property --tw-gradient-via-position{syntax:"<length-percentage>";inherits:false;initial-value:50%}@property --tw-gradient-to-position{syntax:"<length-percentage>";inherits:false;initial-value:100%}@property --tw-font-weight{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-blur{syntax:"*";inherits:false}@property --tw-brightness{syntax:"*";inherits:false}@property --tw-contrast{syntax:"*";inherits:false}@property --tw-grayscale{syntax:"*";inherits:false}@property --tw-hue-rotate{syntax:"*";inherits:false}@property --tw-invert{syntax:"*";inherits:false}@property --tw-opacity{syntax:"*";inherits:false}@property --tw-saturate{syntax:"*";inherits:false}@property --tw-sepia{syntax:"*";inherits:false}@property --tw-drop-shadow{syntax:"*";inherits:false}@property --tw-drop-shadow-color{syntax:"*";inherits:false}@property --tw-drop-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-drop-shadow-size{syntax:"*";inherits:false}@property --tw-duration{syntax:"*";inherits:false}@property --tw-scale-x{syntax:"*";inherits:false;initial-value:1}@property --tw-scale-y{syntax:"*";inherits:false;initial-value:1}@property --tw-scale-z{syntax:"*";inherits:false;initial-value:1}@keyframes spin{to{transform:rotate(360deg)}}