/* ============================================================
   PNGtoICO.com - Main Stylesheet
   Family: ConvertICO / OptimizePNG
   ============================================================ */

/* --- CSS Variables --- */
:root {
    --color-1: #e64e4e;
    --color-2: #3399cc;
    --color-3: #339966;
    --primary: var(--color-2);
    --primary-dark: #2277aa;
    --primary-light: rgba(51,153,204,.12);

    --bg: #f5f7fa;
    --surface: #ffffff;
    --surface-2: #f0f4f8;
    --border: #e2e8f0;
    --border-strong: #c8d4e0;

    --text-primary: #1a2332;
    --text-secondary: #4a5568;
    --text-muted: #718096;
    --text-light: #a0aec0;

    --radius-sm: 6px;
    --radius: 10px;
    --radius-lg: 14px;
    --radius-xl: 20px;

    --shadow-sm: 0 1px 3px rgba(0,0,0,.06), 0 1px 2px rgba(0,0,0,.04);
    --shadow: 0 4px 12px rgba(0,0,0,.08), 0 2px 4px rgba(0,0,0,.04);
    --shadow-md: 0 8px 24px rgba(0,0,0,.10), 0 4px 8px rgba(0,0,0,.05);
    --shadow-lg: 0 20px 48px rgba(0,0,0,.12), 0 8px 16px rgba(0,0,0,.06);

    --header-h: 60px;
    --container: 900px;
    --container-wide: 1100px;

    --transition: .18s ease;
}

[data-theme="dark"] {
    --bg: #0f1621;
    --surface: #1a2333;
    --surface-2: #1e2a3d;
    --border: #2a3a52;
    --border-strong: #354a63;
    --text-primary: #e8edf5;
    --text-secondary: #9ab0cb;
    --text-muted: #6b84a0;
    --text-light: #4a647e;
    --primary-light: rgba(51,153,204,.18);
    --shadow-sm: 0 1px 3px rgba(0,0,0,.25);
    --shadow: 0 4px 12px rgba(0,0,0,.35);
    --shadow-md: 0 8px 24px rgba(0,0,0,.45);
}

/* --- Reset & Base --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--bg);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}
main { flex: 1; }
a { color: var(--primary); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--primary-dark); text-decoration: underline; }
img { max-width: 100%; height: auto; display: block; }
h1, h2, h3, h4, h5 { line-height: 1.3; font-weight: 700; color: var(--text-primary); }
h1 { font-size: clamp(1.5rem, 4vw, 2.1rem); }
h2 { font-size: clamp(1.2rem, 3vw, 1.55rem); }
h3 { font-size: 1.1rem; }
p { margin-bottom: 1em; }
p:last-child { margin-bottom: 0; }

/* --- Layout --- */
.container { max-width: var(--container); margin: 0 auto; padding: 0 20px; }
.container--wide { max-width: var(--container-wide); }

/* --- Header --- */
.header {
    position: sticky;
    top: 0;
    z-index: 100;
    height: var(--header-h);
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
}
.header__inner {
    max-width: var(--container-wide);
    margin: 0 auto;
    padding: 0 20px;
    height: 100%;
    display: flex;
    align-items: center;
    gap: 16px;
}
.header__brand {
    display: flex;
    align-items: center;
    gap: 9px;
    text-decoration: none;
    flex-shrink: 0;
}
.brand__icon {
    width: 34px;
    height: 34px;
    background: var(--color-1);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}
.brand__text {
    font-size: 1.1rem;
    font-weight: 800;
    color: var(--text-primary);
    letter-spacing: -.3px;
}
.brand__text strong { color: var(--color-1); }
.header__nav { display: flex; align-items: center; gap: 4px; margin-left: auto; }
.header__nav a {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    border-radius: var(--radius-sm);
    font-size: .85rem;
    font-weight: 500;
    color: var(--text-secondary);
    text-decoration: none;
    transition: background var(--transition), color var(--transition);
    white-space: nowrap;
}
.header__nav a:hover { background: var(--surface-2); color: var(--text-primary); text-decoration: none; }
.header__nav a.active { color: var(--primary); background: var(--primary-light); }
.header__nav a svg { width: 15px; height: 15px; flex-shrink: 0; }

/* Theme toggle */
.theme-toggle {
    display: flex;
    align-items: center;
    gap: 6px;
    background: none;
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 4px 10px;
    cursor: pointer;
    font-size: .75rem;
    font-weight: 600;
    letter-spacing: .5px;
    color: var(--text-muted);
    transition: border-color var(--transition), color var(--transition);
}
.theme-toggle:hover { border-color: var(--primary); color: var(--primary); }
.theme-toggle__track {
    position: relative;
    width: 30px;
    height: 16px;
    background: var(--border);
    border-radius: 10px;
    transition: background var(--transition);
}
.theme-toggle__knob {
    position: absolute;
    top: 2px;
    left: 2px;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--text-muted);
    transition: transform var(--transition), background var(--transition);
}
[data-theme="dark"] .theme-toggle__track { background: var(--primary); }
[data-theme="dark"] .theme-toggle__knob { transform: translateX(14px); background: #fff; }

/* --- Hero Section --- */
.hero {
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    padding: 42px 20px 36px;
    text-align: center;
}
.hero__eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: .75rem;
    font-weight: 700;
    letter-spacing: 1px;
    text-transform: uppercase;
    color: var(--color-1);
    background: rgba(230,78,78,.1);
    padding: 4px 12px;
    border-radius: 20px;
    margin-bottom: 14px;
}
.hero__title { margin-bottom: 10px; }
.hero__title span { color: var(--color-1); }
.hero__subtitle {
    font-size: 1.05rem;
    color: var(--text-secondary);
    max-width: 560px;
    margin: 0 auto 20px;
}
.hero__badges {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 8px;
    margin-top: 6px;
}
.hero__badge {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    font-size: .78rem;
    font-weight: 600;
    color: var(--text-secondary);
    background: var(--surface-2);
    border: 1px solid var(--border);
    padding: 4px 10px;
    border-radius: 20px;
}
.hero__badge svg { width: 13px; height: 13px; color: var(--color-3); flex-shrink: 0; }

/* --- Converter Box --- */
.converter-wrap { padding: 28px 20px 0; }
.converter-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    overflow: hidden;
    max-width: 760px;
    margin: 0 auto;
}
.converter-card__head {
    padding: 20px 24px 0;
    display: flex;
    align-items: center;
    gap: 10px;
}
.converter-card__head h2 {
    font-size: 1rem;
    color: var(--text-secondary);
    font-weight: 600;
}
.converter-card__head .step-badge {
    background: var(--color-1);
    color: #fff;
    font-size: .72rem;
    font-weight: 800;
    padding: 2px 8px;
    border-radius: 20px;
    letter-spacing: .5px;
}
.converter-card__body { padding: 16px 24px 24px; }

/* Drop Zone */
.dropzone-area {
    border: 2px dashed var(--border-strong);
    border-radius: var(--radius-lg);
    background: var(--surface-2);
    cursor: pointer;
    transition: border-color var(--transition), background var(--transition);
    text-align: center;
    padding: 40px 20px;
    position: relative;
    outline: none;
}
.dropzone-area:hover, .dropzone-area.dz-drag-hover {
    border-color: var(--color-1);
    background: rgba(230,78,78,.04);
}
.dropzone-area.dz-drag-hover { background: rgba(230,78,78,.08); }
.dropzone-area .dz-message { pointer-events: none; }
.drop-icon {
    width: 52px;
    height: 52px;
    background: rgba(230,78,78,.1);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 14px;
}
.drop-icon svg { width: 26px; height: 26px; color: var(--color-1); }
.drop-title {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 6px;
}
.drop-sub {
    font-size: .85rem;
    color: var(--text-muted);
    margin: 0;
}
.drop-sub strong { color: var(--primary); }

/* URL input */
.url-row {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-top: 12px;
}
.url-divider {
    font-size: .8rem;
    font-weight: 600;
    color: var(--text-light);
    flex-shrink: 0;
    padding: 0 4px;
}
.url-input {
    flex: 1;
    padding: 9px 13px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--surface);
    color: var(--text-primary);
    font-size: .85rem;
    font-family: inherit;
    outline: none;
    transition: border-color var(--transition);
}
.url-input:focus { border-color: var(--primary); }
.url-input::placeholder { color: var(--text-light); }

/* --- Converting indicator --- */
#loadingWrap {
    display: none;
    text-align: center;
    padding: 20px 0 8px;
}
.loading-dots {
    display: inline-flex;
    gap: 5px;
    align-items: center;
    margin-bottom: 8px;
}
.loading-dots span {
    width: 8px;
    height: 8px;
    background: var(--color-1);
    border-radius: 50%;
    animation: bounce 1.2s infinite;
}
.loading-dots span:nth-child(2) { animation-delay: .15s; }
.loading-dots span:nth-child(3) { animation-delay: .3s; }
@keyframes bounce { 0%, 80%, 100% { transform: scale(.6); opacity: .5; } 40% { transform: scale(1); opacity: 1; } }
.loading-text { font-size: .88rem; color: var(--text-muted); }

/* --- Error --- */
#errorWrap {
    display: none;
    margin-top: 12px;
    padding: 12px 16px;
    background: rgba(230,78,78,.08);
    border: 1px solid rgba(230,78,78,.3);
    border-radius: var(--radius);
    color: var(--color-1);
    font-size: .88rem;
    font-weight: 500;
}

/* --- Results --- */
.results-section { padding: 0 24px 8px; }
.results-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 0 8px;
    border-top: 1px solid var(--border);
}
.results-header h3 { font-size: .9rem; color: var(--text-secondary); font-weight: 600; }
#noicons {
    padding: 16px 0 8px;
    font-size: .9rem;
    color: var(--text-muted);
    text-align: center;
}
.iconblock {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 12px 0;
    border-bottom: 1px solid var(--border);
    animation: fadeIn .3s ease;
}
.iconblock:last-of-type { border-bottom: none; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }
.icon-preview {
    width: 52px;
    height: 52px;
    background: repeating-conic-gradient(#e0e0e0 0% 25%, #fff 0% 50%) 0 0 / 10px 10px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}
.icon-preview img { width: 48px; height: 48px; object-fit: contain; }
.icon-info { flex: 1; min-width: 0; }
.icon-name {
    font-size: .9rem;
    font-weight: 600;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.icon-meta { font-size: .78rem; color: var(--text-muted); margin-top: 2px; }
.icon-sizes { display: flex; flex-wrap: wrap; gap: 4px; margin-top: 5px; }
.icon-size-badge {
    font-size: .68rem;
    font-weight: 600;
    color: var(--text-muted);
    background: var(--surface-2);
    border: 1px solid var(--border);
    padding: 1px 6px;
    border-radius: 4px;
}
.icon-dl {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-shrink: 0;
}
.btn-download {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    background: var(--color-3);
    color: #fff;
    border-radius: var(--radius);
    font-size: .85rem;
    font-weight: 600;
    text-decoration: none;
    transition: opacity var(--transition), transform var(--transition);
    white-space: nowrap;
}
.btn-download:hover { opacity: .88; transform: translateY(-1px); text-decoration: none; color: #fff; }
.btn-download svg { width: 15px; height: 15px; }

/* Archive block */
.archive-section { padding: 0 24px 16px; }
.archive-section.hidden { display: none; }
.archiveblock {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 14px;
    background: var(--surface-2);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    animation: fadeIn .3s ease;
}
.archive-icon {
    width: 44px;
    height: 44px;
    background: rgba(51,153,204,.1);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}
.archive-icon svg { width: 22px; height: 22px; color: var(--primary); }
.archive-info { flex: 1; }
.archive-name { font-size: .9rem; font-weight: 600; }
.archive-meta { font-size: .78rem; color: var(--text-muted); }

/* Show more */
.show-more-wrap { text-align: center; padding: 8px 0 16px; }
.btn-showmore {
    background: none;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 6px 18px;
    font-size: .82rem;
    font-weight: 600;
    color: var(--text-secondary);
    cursor: pointer;
    transition: border-color var(--transition), color var(--transition);
    display: none;
}
.btn-showmore:hover { border-color: var(--primary); color: var(--primary); }

/* --- Ad slot --- */
.ad-slot {
    max-width: 760px;
    margin: 20px auto 0;
    text-align: center;
    line-height: 0;
    font-size: 0;
}

/* --- Feature grid --- */
.features-section { padding: 48px 20px; }
.features-section .section-title {
    text-align: center;
    margin-bottom: 28px;
}
.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    max-width: var(--container);
    margin: 0 auto;
}
.feature-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 22px 20px;
    transition: box-shadow var(--transition), transform var(--transition);
}
.feature-card:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); }
.feature-icon {
    width: 42px;
    height: 42px;
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 12px;
}
.feature-icon svg { width: 20px; height: 20px; }
.feature-card h3 { font-size: .95rem; margin-bottom: 6px; }
.feature-card p { font-size: .84rem; color: var(--text-secondary); margin: 0; }

/* --- ICO sizes showcase --- */
.sizes-section {
    background: var(--surface);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
    padding: 40px 20px;
}
.sizes-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 12px;
    margin-top: 24px;
}
.size-card {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 14px 18px;
    text-align: center;
    min-width: 90px;
    transition: border-color var(--transition);
}
.size-card:hover { border-color: var(--color-1); }
.size-card__px {
    font-size: 1.1rem;
    font-weight: 800;
    color: var(--color-1);
    display: block;
}
.size-card__label { font-size: .75rem; color: var(--text-muted); font-weight: 500; }

/* --- How to section --- */
.howto-section { padding: 48px 20px; }
.steps-list { max-width: 640px; margin: 28px auto 0; display: flex; flex-direction: column; gap: 20px; }
.step {
    display: flex;
    gap: 16px;
    align-items: flex-start;
}
.step-num {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--color-1);
    color: #fff;
    font-weight: 800;
    font-size: .9rem;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    margin-top: 2px;
}
.step-content h3 { font-size: .95rem; margin-bottom: 4px; }
.step-content p { font-size: .88rem; color: var(--text-secondary); margin: 0; }

/* --- Use cases --- */
.usecases-section { background: var(--surface); border-top: 1px solid var(--border); padding: 48px 20px; }
.usecases-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
    max-width: var(--container);
    margin: 24px auto 0;
}
.usecase-card {
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 20px;
    background: var(--bg);
}
.usecase-card h3 { font-size: .95rem; margin-bottom: 6px; display: flex; align-items: center; gap: 8px; }
.usecase-card h3 svg { width: 18px; height: 18px; color: var(--primary); flex-shrink: 0; }
.usecase-card p { font-size: .84rem; color: var(--text-secondary); margin: 0; }

/* --- FAQ --- */
.faq-section { padding: 48px 20px; }
.faq-list { max-width: 700px; margin: 28px auto 0; display: flex; flex-direction: column; gap: 10px; }
.faq-item {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: border-color var(--transition);
}
.faq-item:hover { border-color: var(--border-strong); }
.faq-q {
    width: 100%;
    text-align: left;
    padding: 16px 20px;
    background: none;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    font-size: .93rem;
    font-weight: 600;
    color: var(--text-primary);
    font-family: inherit;
}
.faq-q svg {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
    color: var(--text-muted);
    transition: transform var(--transition);
}
.faq-item.open .faq-q svg { transform: rotate(180deg); }
.faq-a {
    display: none;
    padding: 0 20px 16px;
    font-size: .88rem;
    color: var(--text-secondary);
    line-height: 1.7;
}
.faq-item.open .faq-a { display: block; }

/* --- Content article --- */
.content-section { background: var(--surface); border-top: 1px solid var(--border); padding: 48px 20px; }
.content-body { max-width: 700px; margin: 0 auto; }
.content-body h2 { margin: 0 0 12px; }
.content-body p { font-size: .93rem; color: var(--text-secondary); }
.content-cols { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; margin-top: 28px; }
.content-col h3 { font-size: .95rem; margin-bottom: 8px; color: var(--text-primary); }
.content-col ul { list-style: none; padding: 0; display: flex; flex-direction: column; gap: 5px; }
.content-col li { font-size: .85rem; color: var(--text-secondary); display: flex; align-items: center; gap: 8px; }
.content-col li::before { content: ''; width: 6px; height: 6px; border-radius: 50%; background: var(--color-3); flex-shrink: 0; }

/* --- Cross-links --- */
.crosslinks-section { padding: 40px 20px; }
.crosslinks-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
    max-width: var(--container);
    margin: 20px auto 0;
}
.crosslink-card {
    display: flex;
    flex-direction: column;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 18px;
    text-decoration: none;
    transition: box-shadow var(--transition), transform var(--transition), border-color var(--transition);
}
.crosslink-card:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); border-color: var(--primary); text-decoration: none; }
.crosslink-card__label {
    font-size: .72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .8px;
    color: var(--text-light);
    margin-bottom: 6px;
}
.crosslink-card__name { font-size: .95rem; font-weight: 700; color: var(--text-primary); margin-bottom: 4px; }
.crosslink-card__desc { font-size: .8rem; color: var(--text-muted); flex: 1; }
.crosslink-card__arrow { font-size: .8rem; color: var(--primary); margin-top: 10px; font-weight: 600; }

/* --- Section utilities --- */
.section-title { font-size: clamp(1.15rem, 3vw, 1.45rem); text-align: center; }
.section-subtitle { font-size: .93rem; color: var(--text-secondary); text-align: center; max-width: 540px; margin: 8px auto 0; }

/* --- Footer --- */
.footer {
    background: var(--surface);
    border-top: 1px solid var(--border);
    margin-top: auto;
}
.footer__trust {
    background: var(--surface-2);
    border-bottom: 1px solid var(--border);
    padding: 14px 20px;
}
.footer__trust-inner {
    max-width: var(--container-wide);
    margin: 0 auto;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 12px 28px;
}
.footer__trust-item {
    display: flex;
    align-items: center;
    gap: 7px;
    font-size: .78rem;
    color: var(--text-muted);
    font-weight: 500;
}
.footer__trust-item svg { width: 14px; height: 14px; color: var(--color-3); flex-shrink: 0; }
.footer__body {
    max-width: var(--container-wide);
    margin: 0 auto;
    padding: 32px 20px 20px;
    display: grid;
    grid-template-columns: 200px 1fr;
    gap: 32px;
}
.footer__brand-link { display: flex; align-items: center; gap: 9px; text-decoration: none; margin-bottom: 10px; }
.footer__brand-name { font-size: 1rem; font-weight: 800; color: var(--text-primary); }
.footer__brand-name span { color: var(--color-1); }
.footer__brand-tagline { font-size: .78rem; color: var(--text-muted); }
.footer__cols { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.footer__col-title {
    display: block;
    font-size: .72rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: .8px;
    color: var(--text-muted);
    margin-bottom: 10px;
}
.footer__col a {
    display: block;
    font-size: .82rem;
    color: var(--text-secondary);
    padding: 3px 0;
    text-decoration: none;
    transition: color var(--transition);
}
.footer__col a:hover { color: var(--primary); text-decoration: none; }
.footer__bottom {
    max-width: var(--container-wide);
    margin: 0 auto;
    padding: 14px 20px;
    border-top: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
}
.footer__copy { font-size: .78rem; color: var(--text-muted); }
.footer__copy a { color: var(--text-muted); }
.footer__legal { display: flex; gap: 16px; }
.footer__legal a { font-size: .78rem; color: var(--text-muted); transition: color var(--transition); }
.footer__legal a:hover { color: var(--primary); }

/* --- Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    padding: 10px 22px;
    border-radius: var(--radius);
    font-size: .9rem;
    font-weight: 600;
    cursor: pointer;
    border: none;
    text-decoration: none;
    transition: opacity var(--transition), transform var(--transition), box-shadow var(--transition);
    font-family: inherit;
}
.btn:hover { opacity: .88; transform: translateY(-1px); text-decoration: none; }
.btn--primary { background: var(--color-1); color: #fff; }
.btn--secondary { background: var(--surface-2); color: var(--text-secondary); border: 1px solid var(--border); }
.btn--secondary:hover { color: var(--text-primary); }
.btn svg { width: 16px; height: 16px; }

/* Lucide icons as inline SVGs */
[data-lucide] { display: inline-block; }

/* --- Responsive --- */
@media (max-width: 768px) {
    .features-grid { grid-template-columns: 1fr 1fr; }
    .usecases-grid { grid-template-columns: 1fr; }
    .crosslinks-grid { grid-template-columns: 1fr 1fr; }
    .content-cols { grid-template-columns: 1fr; gap: 16px; }
    .footer__body { grid-template-columns: 1fr; gap: 20px; }
    .footer__cols { grid-template-columns: 1fr 1fr; }
    .header__nav a span { display: none; }
}
@media (max-width: 520px) {
    .features-grid { grid-template-columns: 1fr; }
    .crosslinks-grid { grid-template-columns: 1fr; }
    .footer__cols { grid-template-columns: 1fr; }
    .footer__bottom { flex-direction: column; text-align: center; }
    .hero { padding: 28px 16px 24px; }
}