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#eef4fb;--color-bg-accent: #dbeafe;--color-surface: #ffffff;--color-primary: #2563eb;--color-primary-dark: #1d4ed8;--color-primary-soft: #eff6ff;--color-accent: #f59e0b;--color-accent-soft: #fffbeb;--color-success: #059669;--color-success-soft: #ecfdf5;--color-danger: #dc2626;--color-danger-soft: #fef2f2;--color-text: #0f172a;--color-muted: #64748b;--color-border: #e2e8f0;--color-student-msg: #dbeafe;--color-ai-msg: #f8fafc;--arabic-font: "Noto Naskh Arabic", "Segoe UI", Tahoma, serif;--msg-font-size: 1.05rem;--radius-sm: 10px;--radius: 16px;--radius-lg: 22px;--shadow-sm: 0 2px 8px rgb(15 23 42 / .06);--shadow: 0 8px 28px rgb(15 23 42 / .08);--shadow-lg: 0 16px 40px rgb(15 23 42 / .12);--header-h: 3.75rem;--bottom-nav-h: 4.25rem;--touch-min: 44px;--page-pad-x: clamp(.85rem, 3vw, 1.25rem);--safe-bottom: env(safe-area-inset-bottom, 0px);--safe-top: env(safe-area-inset-top, 0px)}[data-theme=dark]{--color-bg: #0f172a;--color-bg-accent: #1e293b;--color-surface: #1e293b;--color-primary: #60a5fa;--color-primary-dark: #3b82f6;--color-primary-soft: #172554;--color-accent-soft: #422006;--color-success-soft: #064e3b;--color-danger-soft: #450a0a;--color-text: #f1f5f9;--color-muted: #94a3b8;--color-border: #334155;--color-student-msg: #1e3a5f;--color-ai-msg: #1e293b;--shadow-sm: 0 2px 8px rgb(0 0 0 / .25);--shadow: 0 8px 28px rgb(0 0 0 / .35);--shadow-lg: 0 16px 40px rgb(0 0 0 / .45)}[data-theme=dark] body{background:radial-gradient(ellipse 80% 50% at 50% -10%,rgb(37 99 235 / .15),transparent 55%),var(--color-bg)}html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}html,body{margin:0;min-height:100%;font-family:var(--arabic-font);background:var(--color-bg);color:var(--color-text);line-height:1.65}body{background:radial-gradient(ellipse 80% 50% at 50% -10%,rgb(37 99 235 / .12),transparent 55%),var(--color-bg)}#root{min-height:100vh;min-height:100dvh;display:flex;flex-direction:column}a{color:var(--color-primary);text-decoration:none}a:hover{text-decoration:underline}button,input,select,textarea{font-family:inherit}button{cursor:pointer;-webkit-tap-highlight-color:transparent}input,select,textarea{font-size:16px}.visually-hidden{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);border:0}