Best KnowledgeHub – Human Anatomy and Zoology Notes

/* =========================== Layout / Theme - Mobile First Paste this into your layout settings =========================== */ /* ---------- CSS Variables (theme & spacing) ---------- */ :root{ /* colors */ --bg: #ffffff; --text: #111111; --muted: #6b7280; --primary: #2563eb; --surface: #f8fafc; --card: #ffffff; --success: #16a34a; --danger: #ef4444; /* spacing & layout */ --space-xs: 0.25rem; --space-sm: 0.5rem; --space-md: 1rem; --space-lg: 1.5rem; --space-xl: 2.5rem; --container-max: 1200px; --radius: 12px; /* typography */ --base-size: 16px; --scale-ratio: 1.15; --font-sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial; /* elevation */ --shadow-sm: 0 1px 2px rgba(16,24,40,0.05); --shadow-md: 0 6px 18px rgba(16,24,40,0.08); } /* Dark mode */ @media (prefers-color-scheme: dark){ :root{ --bg: #0b1220; --text: #e6eef8; --muted: #9aa6b2; --surface: #071022; --card: #071022; } } /* Reduced motion */ @media (prefers-reduced-motion: reduce){ :root{ --reduce-motion: 1; } } /* ---------- Global reset & base ---------- */ *, *::before, *::after{ box-sizing: border-box; } html{ font-family: var(--font-sans); font-size: var(--base-size); /* base for rem */ -webkit-text-size-adjust: 100%; -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; background-color: var(--bg); color: var(--text); line-height: 1.45; } body{ margin: 0; min-height: 100vh; -webkit-tap-highlight-color: transparent; padding: env(safe-area-inset-top) env(safe-area-inset-right) env(safe-area-inset-bottom) env(safe-area-inset-left); } /* ---------- Container (centered, fluid) ---------- */ .container{ width: 100%; max-width: var(--container-max); margin-left: auto; margin-right: auto; padding-left: var(--space-md); padding-right: var(--space-md); } /* Useful full-bleed sections */ .section{ width: 100%; padding: var(--space-lg) 0; background: transparent; } /* ---------- Responsive Grid (mobile-first) ---------- */ /* Small devices: single column by default */ .grid{ display: grid; grid-template-columns: 1fr; gap: var(--space-md); } /* Two columns on small tablets and up */ @media (min-width: 640px){ .grid--2 { grid-template-columns: repeat(2, minmax(0,1fr)); } } /* Three columns on medium screens and up */ @media (min-width: 960px){ .grid--3 { grid-template-columns: repeat(3, minmax(0,1fr)); } } /* ---------- Header / Nav / Footer ---------- */ .header{ display: flex; align-items: center; justify-content: space-between; gap: var(--space-md); padding: var(--space-sm) 0; background: transparent; } .brand{ display: flex; align-items: center; gap: var(--space-sm); font-weight: 600; font-size: 1.125rem; } /* responsive nav: collapsed into a row on mobile */ .nav{ display: flex; gap: var(--space-sm); align-items: center; flex-wrap: nowrap; } /* footer */ .footer{ padding: var(--space-lg) 0; font-size: 0.875rem; color: var(--muted); background: transparent; } /* ---------- Card / Surface ---------- */ .card{ background: var(--card); border-radius: var(--radius); padding: var(--space-md); box-shadow: var(--shadow-sm); transition: transform 160ms cubic-bezier(.2,.8,.2,1), box-shadow 160ms; } .card--hoverable{ cursor: pointer; } .card--hoverable:focus, .card--hoverable:hover{ transform: translateY(-6px); box-shadow: var(--shadow-md); outline: none; } /* ---------- Typography utilities ---------- */ .h1{ font-size: clamp(1.25rem, 2.2vw, 1.75rem); margin: 0 0 var(--space-sm) 0; } .h2{ font-size: clamp(1.1rem, 1.8vw, 1.25rem); margin:0 0 var(--space-sm) 0; } .p--muted{ color: var(--muted); } /* ---------- Buttons / Controls ---------- */ .btn{ display: inline-flex; align-items: center; justify-content: center; gap: 0.5rem; padding: 0.6rem 0.9rem; border-radius: 10px; font-weight: 600; border: none; background: var(--primary); color: #fff; text-decoration: none; cursor: pointer; min-height: 44px; /* touch target */ transition: transform 140ms, box-shadow 140ms; } .btn:active{ transform: translateY(1px); } .btn--ghost{ background: transparent; color: var(--text); border: 1px solid rgba(0,0,0,0.06); } /* Accessible focus */ :focus{ outline: 3px solid rgba(37,99,235,0.18); outline-offset: 2px; border-radius: 8px; } .btn:focus{ outline-offset: 3px; } /* ---------- Forms ---------- */ .input, .select, .textarea{ width: 100%; padding: 0.6rem 0.75rem; border-radius: 8px; border: 1px solid rgba(16,24,40,0.06); background: var(--surface); color: var(--text); font-size: 1rem; } .field{ margin-bottom: var(--space-sm); } /* ---------- Utilities ---------- */ .flex{ display:flex; } .flex-col{ display:flex; flex-direction:column; } .center{ display:flex; align-items:center; justify-content:center; } .space-between{ justify-content:space-between; } .text-center{ text-align:center; } .muted{ color: var(--muted); } .hidden{ display:none !important; } .show-mobile{ display:block; } .show-desktop{ display:none; } @media (min-width: 640px){ .show-mobile{ display:none; } .show-desktop{ display:block; } } /* visually hidden for accessibility */ .sr-only{ position: absolute !important; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; } /* spacing helpers */ .gap-xs{ gap: var(--space-xs); } .gap-sm{ gap: var(--space-sm); } .gap-md{ gap: var(--space-md); } .gap-lg{ gap: var(--space-lg); } /* ---------- Responsive Images & media ---------- */ .img-fluid{ max-width:100%; height:auto; display:block; border-radius: 8px; } /* ---------- Sticky footer & main layout ---------- */ .site{ min-height: 100vh; display: grid; grid-template-rows: auto 1fr auto; } .main{ padding: var(--space-lg) 0; } /* ---------- Small helpers for layout setting needs ---------- */ /* e.g., for a settings panel on mobile */ .settings-panel{ width: 100%; max-width: 980px; margin: 0 auto; } .settings-row{ display:flex; flex-direction:column; gap: var(--space-sm); } @media (min-width:720px){ .settings-row{ flex-direction:row; align-items:center; } .settings-row > *{ flex: 1 1 auto; } } /* ---------- Performance & reduced animation niceties ---------- */ @media (prefers-reduced-motion: reduce){ * { transition: none !important; animation: none !important; } } /* ---------- Example small component (toggle) ---------- */ .toggle{ width: 44px; height:26px; border-radius: 999px; background: rgba(0,0,0,0.06); position: relative; cursor:pointer; padding: 3px; } .toggle .knob{ width: 20px; height: 20px; background: #fff; border-radius:50%; box-shadow: 0 2px 6px rgba(0,0,0,0.06); transform: translateX(0); transition: transform 160ms cubic-bezier(.2,.8,.2,1); } .toggle[aria-checked="true"]{ background: var(--primary); } .toggle[aria-checked="true"] .knob{ transform: translateX(18px); } /* ---------- End of layout CSS ---------- */

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