@font-face { font-family: 'Inter'; font-style: normal; font-weight: 400; font-display: swap; src: url('/fonts/inter/Inter-Regular.woff2') format('woff2'); } @font-face { font-family: 'Inter'; font-style: normal; font-weight: 500; font-display: swap; src: url('/fonts/inter/Inter-Medium.woff2') format('woff2'); } @font-face { font-family: 'Inter'; font-style: normal; font-weight: 600; font-display: swap; src: url('/fonts/inter/Inter-SemiBold.woff2') format('woff2'); } @font-face { font-family: 'Inter'; font-style: normal; font-weight: 700; font-display: swap; src: url('/fonts/inter/Inter-Bold.woff2') format('woff2'); } @font-face { font-family: 'Inter'; font-style: normal; font-weight: 800; font-display: swap; src: url('/fonts/inter/Inter-ExtraBold.woff2') format('woff2'); } @font-face { font-family: 'JetBrains Mono'; font-style: normal; font-weight: 400; font-display: swap; src: url('/fonts/jetbrains-mono/JetBrainsMono-Regular.woff2') format('woff2'); } @font-face { font-family: 'JetBrains Mono'; font-style: normal; font-weight: 500; font-display: swap; src: url('/fonts/jetbrains-mono/JetBrainsMono-Medium.woff2') format('woff2'); } @font-face { font-family: 'JetBrains Mono'; font-style: normal; font-weight: 600; font-display: swap; src: url('/fonts/jetbrains-mono/JetBrainsMono-SemiBold.woff2') format('woff2'); } :root { /* ─── Colors (Dark Theme) ─────────────────────────────── */ --bg: #0c0f14; --bg-elevated: #12161e; --sidebar-bg: #10141b; --card-bg: rgba(18, 22, 30, 0.85); --input-bg: rgba(255, 255, 255, 0.04); --hover-bg: rgba(255, 255, 255, 0.06); --border: rgba(255, 255, 255, 0.08); --text: #e8ecf4; --text-muted: #7b8498; --accent: #10b981; --accent-dark: #059669; --accent-glow: rgba(16, 185, 129, 0.15); --accent-gradient: linear-gradient(135deg, #10b981, #06b6d4); --header-bg: rgba(12, 15, 20, 0.85); --section-bg: rgba(255, 255, 255, 0.04); /* ─── Typography ──────────────────────────────────────── */ --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif; --font-mono: 'JetBrains Mono', 'Fira Code', monospace; /* ─── Layout ──────────────────────────────────────────── */ --header-h: 64px; } :root[data-theme='light'] { --bg: #f8fafc; --bg-elevated: #ffffff; --sidebar-bg: #ffffff; --card-bg: #ffffff; --input-bg: rgba(15, 23, 42, 0.04); --hover-bg: rgba(15, 23, 42, 0.08); --border: rgba(15, 23, 42, 0.12); --text: #0f172a; --text-muted: #475569; --accent: #047857; --accent-dark: #065f46; --accent-glow: rgba(16, 185, 129, 0.15); --accent-gradient: linear-gradient(135deg, #10b981, #06b6d4); --header-bg: rgba(255, 255, 255, 0.95); --section-bg: rgba(15, 23, 42, 0.04); } /* ─── Palette overrides ─────────────────────────────────── */ :root[data-palette='emerald'][data-theme='dark'] { --bg: #0b1313; --bg-elevated: rgba(4, 20, 15, 0.85); --sidebar-bg: #08110f; --card-bg: rgba(6, 19, 13, 0.75); --input-bg: rgba(16, 185, 129, 0.08); --hover-bg: rgba(16, 185, 129, 0.12); --border: rgba(16, 185, 129, 0.35); --text: #e9fcea; --text-muted: #9fdac4; --accent: #10b981; --accent-dark: #059669; --accent-glow: rgba(16, 185, 129, 0.25); --accent-gradient: linear-gradient(135deg, #10b981, #0ea5e9); --header-bg: rgba(12, 15, 20, 0.85); } :root[data-palette='emerald'][data-theme='light'] { --bg: #f6fbf9; --bg-elevated: #ffffff; --sidebar-bg: #ffffff; --card-bg: #ffffff; --input-bg: #ecf7f1; --hover-bg: #d5f0df; --border: rgba(4, 120, 87, 0.25); --text: #0b2c1f; --text-muted: #4a6b5c; --accent: #047857; --accent-dark: #065f46; --accent-glow: rgba(4, 120, 87, 0.2); --accent-gradient: linear-gradient(135deg, #047857, #0ea5e9); --header-bg: rgba(255, 255, 255, 0.95); } :root[data-palette='sunset'][data-theme='dark'] { --bg: #0f0505; --bg-elevated: rgba(15, 5, 5, 0.85); --sidebar-bg: #0c0404; --card-bg: rgba(19, 6, 6, 0.7); --input-bg: rgba(251, 113, 133, 0.08); --hover-bg: rgba(251, 113, 133, 0.14); --border: rgba(251, 113, 133, 0.35); --text: #ffe7e0; --text-muted: #f9a6aa; --accent: #fb7185; --accent-dark: #be123c; --accent-glow: rgba(251, 113, 133, 0.25); --accent-gradient: linear-gradient(135deg, #fb7185, #f97316); --header-bg: rgba(12, 8, 6, 0.85); } :root[data-palette='sunset'][data-theme='light'] { --bg: #fff8f2; --bg-elevated: #ffffff; --sidebar-bg: #ffffff; --card-bg: #fff4ef; --input-bg: #ffe3d8; --hover-bg: #ffd3bf; --border: rgba(249, 115, 22, 0.25); --text: #3d1b0b; --text-muted: #7a4a37; --accent: #f97316; --accent-dark: #c2410c; --accent-glow: rgba(249, 115, 22, 0.25); --accent-gradient: linear-gradient(135deg, #f97316, #ec4899); --header-bg: rgba(255, 255, 255, 0.96); } :root[data-palette='ocean'][data-theme='dark'] { --bg: #030b12; --bg-elevated: rgba(2, 9, 20, 0.85); --sidebar-bg: #050c16; --card-bg: rgba(3, 13, 26, 0.75); --input-bg: rgba(14, 165, 233, 0.08); --hover-bg: rgba(14, 165, 233, 0.15); --border: rgba(14, 165, 233, 0.4); --text: #e6f6ff; --text-muted: #a1c4e8; --accent: #38bdf8; --accent-dark: #0369a1; --accent-glow: rgba(14, 165, 233, 0.35); --accent-gradient: linear-gradient(135deg, #38bdf8, #0f172a); --header-bg: rgba(6, 15, 30, 0.85); } :root[data-palette='ocean'][data-theme='light'] { --bg: #f4fbff; --bg-elevated: #ffffff; --sidebar-bg: #ffffff; --card-bg: #f0f7ff; --input-bg: #dcefff; --hover-bg: #cae8ff; --border: rgba(14, 165, 233, 0.25); --text: #06274e; --text-muted: #4d6993; --accent: #0ea5e9; --accent-dark: #0369a1; --accent-glow: rgba(14, 165, 233, 0.25); --accent-gradient: linear-gradient(135deg, #0ea5e9, #4753ff); --header-bg: rgba(255, 255, 255, 0.95); } :root[data-palette='orchid'][data-theme='dark'] { --bg: #0c0215; --bg-elevated: rgba(10, 3, 30, 0.85); --sidebar-bg: #090118; --card-bg: rgba(12, 2, 25, 0.75); --input-bg: rgba(168, 85, 247, 0.08); --hover-bg: rgba(168, 85, 247, 0.16); --border: rgba(168, 85, 247, 0.35); --text: #f5e6ff; --text-muted: #c5a3e8; --accent: #d946ef; --accent-dark: #831843; --accent-glow: rgba(217, 70, 239, 0.25); --accent-gradient: linear-gradient(135deg, #d946ef, #fb7185); --header-bg: rgba(13, 6, 23, 0.95); } :root[data-palette='orchid'][data-theme='light'] { --bg: #fdf6ff; --bg-elevated: #ffffff; --sidebar-bg: #ffffff; --card-bg: #fdf2ff; --input-bg: #f5e4ff; --hover-bg: #e9d4ff; --border: rgba(168, 85, 247, 0.25); --text: #2c0a3a; --text-muted: #6a5277; --accent: #a855f7; --accent-dark: #6d28d9; --accent-glow: rgba(168, 85, 247, 0.25); --accent-gradient: linear-gradient(135deg, #c084fc, #a855f7); --header-bg: rgba(255, 255, 255, 0.97); } :root[data-palette='citrus'][data-theme='dark'] { --bg: #1a1203; --bg-elevated: rgba(26, 18, 3, 0.9); --sidebar-bg: #130e02; --card-bg: rgba(26, 18, 3, 0.75); --input-bg: rgba(250, 204, 21, 0.08); --hover-bg: rgba(250, 204, 21, 0.14); --border: rgba(250, 204, 21, 0.35); --text: #fff8e7; --text-muted: #f6dea1; --accent: #fbbf24; --accent-dark: #b45309; --accent-glow: rgba(250, 204, 21, 0.25); --accent-gradient: linear-gradient(135deg, #fbbf24, #f97316); --header-bg: rgba(15, 9, 2, 0.9); } :root[data-palette='citrus'][data-theme='light'] { --bg: #fffdf5; --bg-elevated: #ffffff; --sidebar-bg: #ffffff; --card-bg: #fffaf0; --input-bg: #fff4d8; --hover-bg: #ffeec1; --border: rgba(250, 204, 21, 0.25); --text: #2b2509; --text-muted: #6d5f2a; --accent: #facc15; --accent-dark: #b45309; --accent-glow: rgba(250, 204, 21, 0.2); --accent-gradient: linear-gradient(135deg, #facc15, #f97316); --header-bg: rgba(255, 255, 255, 0.98); } *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; } html { font-family: var(--font-body); color: var(--text); background: var(--bg); -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; scroll-behavior: smooth; } body { min-height: 100vh; line-height: 1.6; } a { color: var(--accent); text-decoration: none; transition: color 0.15s; } a:hover { color: var(--accent-dark); } a:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; } .skip-link { position: fixed; top: 0.6rem; left: 0.6rem; z-index: 500; background: var(--bg-elevated); color: var(--text); border: 1px solid var(--border); border-radius: 10px; padding: 0.5rem 0.8rem; transform: translateY(-160%); transition: transform 0.2s ease; } .skip-link:focus-visible { transform: translateY(0); } /* ─── Layout Shell ───────────────────────────────────────── */ .site-header { position: sticky; top: 0; z-index: 50; height: var(--header-h); display: flex; align-items: center; justify-content: space-between; padding: 0 1.5rem; background: var(--header-bg); backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px); border-bottom: 1px solid var(--border); } .header-left { display: flex; align-items: center; gap: 0.75rem; } .site-logo { display: flex; align-items: center; gap: 0.5rem; text-decoration: none; color: var(--text); font-weight: 800; font-size: 1.15rem; letter-spacing: -0.02em; white-space: nowrap; } .site-logo .logo-accent { color: var(--accent); } .site-logo .logo-domain { color: var(--text-muted); font-weight: 500; } .header-right { display: flex; align-items: center; gap: 0.65rem; } .desktop-header-search { width: min(420px, 42vw); } .header-icon-btn { display: none; align-items: center; justify-content: center; width: 44px; height: 44px; border: 1px solid var(--border); border-radius: 50%; background: var(--input-bg); color: var(--text); cursor: pointer; font-size: 1rem; line-height: 1; transition: border-color 0.2s, box-shadow 0.2s, background 0.2s; } .header-icon-btn:hover { border-color: var(--accent); } .header-icon-btn:focus-visible { outline: none; box-shadow: 0 0 0 3px var(--accent-glow); } .mobile-header-search { padding: 0.75rem 1rem; border-bottom: 1px solid var(--border); background: var(--header-bg); } .mobile-header-search[hidden] { display: none !important; } .theme-toggle { display: inline-flex; align-items: center; justify-content: center; width: 44px; height: 44px; border-radius: 50%; border: 1px solid var(--border); background: var(--input-bg); color: var(--text); font-weight: 600; font-size: 1rem; font-family: inherit; line-height: 1; cursor: pointer; transition: border-color 0.2s, background 0.2s, color 0.2s, box-shadow 0.2s; } .theme-toggle:hover { border-color: var(--accent); } .theme-toggle:focus-visible { outline: none; box-shadow: 0 0 0 3px var(--accent-glow); } .floating-palette-controls { position: fixed; bottom: clamp(0.75rem, 2vw, 1.25rem); right: clamp(0.75rem, 2vw, 1.25rem); display: flex; align-items: center; gap: 0.3rem; padding: 0.2rem 0.45rem; border-radius: 999px; background: var(--bg-elevated); border: 1px solid rgba(255, 255, 255, 0.08); box-shadow: 0 16px 30px rgba(0, 0, 0, 0.35); backdrop-filter: blur(24px); -webkit-backdrop-filter: blur(24px); z-index: 200; } .palette-dots { display: flex; gap: 0.25rem; flex: 0 0 auto; } .palette-dot { width: 30px; height: 30px; border-radius: 50%; border: 1px solid transparent; padding: 0; background-size: 160%; background-position: center; cursor: pointer; transition: transform 0.2s, border-color 0.2s, box-shadow 0.2s; box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.05); overflow: hidden; flex-shrink: 0; transform-origin: center; } .palette-dot:hover { transform: scale(1.05); } .palette-dot.active, .palette-dot:focus-visible { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-glow); } .palette-dot:focus-visible { outline: none; } .floating-palette-controls:not(:hover):not(:focus-within) .palette-dot:not(.active) { display: none; } @media (max-width: 520px) { .floating-palette-controls { gap: 0.2rem; padding: 0.18rem 0.35rem; right: 0.65rem; } .palette-dot { width: 26px; height: 26px; } } .hamburger { display: none; align-items: center; justify-content: center; width: 44px; height: 44px; background: var(--input-bg); border: 1px solid var(--border); border-radius: 50%; color: var(--text); font-size: 1.2rem; cursor: pointer; padding: 0; transition: border-color 0.2s, box-shadow 0.2s, background 0.2s; } .hamburger:hover { border-color: var(--accent); } .hamburger:focus-visible { outline: none; box-shadow: 0 0 0 3px var(--accent-glow); } .site-body { display: flex; min-height: calc(100vh - var(--header-h)); width: 100%; max-width: none; margin: 0; gap: clamp(1.25rem, 2vw, 2.5rem); padding: 0 clamp(1rem, 2vw, 2rem) 0 0; align-items: stretch; } .main-content { flex: 1; padding: clamp(1.5rem, 2vw, 3rem); width: 100%; } .main-content:focus { outline: none; } .site-footer { padding: 2rem; text-align: center; font-size: 0.82rem; color: var(--text-muted); border-top: 1px solid var(--border); } /* ─── Page Utilities ─────────────────────────────────────── */ .breadcrumbs { font-size: 0.82rem; color: var(--text-muted); margin-bottom: 1.5rem; } .breadcrumbs ol { list-style: none; display: flex; flex-wrap: wrap; align-items: center; gap: 0.4rem; margin: 0; padding: 0; } .breadcrumbs li { display: inline-flex; align-items: center; color: var(--text-muted); } .breadcrumbs li + li::before { content: '›'; opacity: 0.4; margin-right: 0.4rem; } .breadcrumbs a { color: var(--text-muted); } .breadcrumbs a:hover { color: var(--accent); } .page-title { font-size: 1.8rem; font-weight: 800; margin-bottom: 0.5rem; letter-spacing: -0.02em; background: var(--accent-gradient); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; } .calculator-page-title { margin-bottom: 1.25rem; } .page-subtitle { color: var(--text-muted); font-size: 1rem; margin-bottom: 2rem; line-height: 1.5; } .section-heading { font-size: 1.1rem; font-weight: 700; margin: 2.5rem 0 1rem; color: var(--text); } /* ─── Category Grid ──────────────────────────────────────── */ .category-section { width: 100%; display: flex; justify-content: center; padding: clamp(1.5rem, 3vw, 3rem) clamp(1rem, 2vw, 2.5rem); } .category-section__inner { width: min(1200px, 100%); display: flex; flex-direction: column; align-items: center; gap: 1.5rem; } .category-section .section-heading { text-align: center; margin: 0; width: 100%; } .category-grid { width: min(1160px, 100%); margin: 0 auto; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); grid-auto-rows: minmax(132px, auto); gap: clamp(0.75rem, 1.3vw, 1.25rem); } .category-grid .category-card { width: 100%; height: 100%; } @media (min-width: 640px) { .category-grid { grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); } } @media (min-width: 1280px) { .category-grid { grid-template-columns: repeat(5, minmax(0, 1fr)); } } /* ─── Calculator List (category page) ────────────────────── */ .calc-list { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 0.75rem; } .calc-list-item { display: block; padding: 1rem 1.25rem; background: var(--card-bg); border: 1px solid var(--border); border-radius: 12px; color: var(--text); text-decoration: none; font-size: 0.9rem; font-weight: 500; transition: border-color 0.2s, transform 0.15s, box-shadow 0.2s; } .calc-list-item:hover { border-color: var(--accent); transform: translateY(-2px); box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15); color: var(--accent); } .calc-list-item:focus-visible { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-glow); } /* ─── Related Converters ─────────────────────────────────── */ .related-grid { display: flex; flex-wrap: wrap; gap: 0.5rem; } .related-chip { padding: 0.4rem 0.85rem; font-size: 0.8rem; background: var(--hover-bg); border: 1px solid var(--border); border-radius: 8px; color: var(--text-muted); text-decoration: none; transition: background 0.15s, color 0.15s, border-color 0.15s; } .related-chip:hover { background: var(--accent-glow); color: var(--accent); border-color: var(--accent); } .related-chip:focus-visible { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-glow); } /* ─── SEO Content ────────────────────────────────────────── */ .seo-content { margin-top: 2.5rem; padding: 2rem; background: var(--card-bg); border: 1px solid var(--border); border-radius: 16px; line-height: 1.7; color: var(--text-muted); font-size: 0.92rem; } .seo-content h3 { color: var(--text); font-size: 1rem; margin-bottom: 0.75rem; } .seo-content p + p { margin-top: 1rem; } /* ─── Hero ───────────────────────────────────────────────── */ .hero { text-align: center; padding: 3rem 1rem 2rem; margin-bottom: 1rem; } .hero h1 { font-size: 2.5rem; font-weight: 800; letter-spacing: -0.03em; line-height: 1.15; margin-bottom: 0.75rem; background: var(--accent-gradient); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; } .hero p { color: var(--text-muted); font-size: 1.1rem; max-width: 500px; margin: 0 auto 1.5rem; } .hero .search-center { display: flex; justify-content: center; } /* ─── Stats Row ──────────────────────────────────────────── */ .stats-row { display: flex; justify-content: center; gap: 2.5rem; margin-bottom: 2.5rem; padding: 1rem 0; } .stat { text-align: center; } .stat-num { font-size: 1.8rem; font-weight: 800; color: var(--accent); } .stat-label { font-size: 0.78rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.06em; } /* ─── Responsive ─────────────────────────────────────────── */ @media (max-width: 1024px) { .hamburger { display: inline-flex; } .site-body { gap: 1rem; padding-inline: 1rem; } } @media (max-width: 960px) { .site-header { gap: 0.5rem; } .header-left, .header-right { min-width: 0; } .site-logo { flex: 1 1 auto; } .desktop-header-search { display: none; } .header-icon-btn { display: inline-flex; } } @media (max-width: 768px) { .site-header { padding: 0 1rem; } .site-logo { font-size: 1rem; gap: 0.4rem; } .desktop-header-search { display: none; } .header-icon-btn { display: inline-flex; } .mobile-header-search { padding: 0.65rem 1rem; } .main-content { padding: 1.25rem; } .breadcrumbs { margin-bottom: 1rem; } .page-title { font-size: 1.5rem; } .hero h1 { font-size: 1.8rem; } .category-section { padding: 1.25rem 1rem 2rem; } .category-section__inner { gap: 1rem; width: 100%; } .category-section .section-heading { margin-bottom: 0.75rem; text-align: center; } .category-grid { width: 100%; max-width: 540px; margin-inline: auto; grid-template-columns: repeat(2, minmax(140px, 1fr)); gap: clamp(0.7rem, 3vw, 1rem); justify-content: center; } .category-grid .category-card { flex: none; min-width: 0; max-width: none; } .stats-row { gap: 1.5rem; } .seo-content { padding: 1.25rem; } .site-body { gap: 1rem; padding-inline: 1rem; } }