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HowDoYouConvert/hdyc-svelte/src/app.css
2026-03-08 09:01:10 +00:00

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CSS
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@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;
}
}