:root {
    --color-primary: #27ae60;
    --color-secondary: #52be80;
    --color-accent: #ffd700;
    --color-bg: #f0fdf4;
    --color-text: #1f2d24;
    --color-text-light: #4a6354;
    --color-border: #c5e6d0;
    --color-surface: #ffffff;
    --iv-header-h: 72px;
    --iv-font-head: "Rubik", system-ui, sans-serif;
    --iv-font-body: "Mulish", system-ui, sans-serif;
    --iv-radius: 28px;
    --iv-page-w: 1120px;
    --iv-space: 1.25rem;
}

@media (max-width: 768px) {
    :root { --iv-header-h: 64px; }
}

*,
*::before,
*::after { box-sizing: border-box; }

html {
    scroll-padding-top: var(--iv-header-h);
    overflow-x: hidden;
}

body {
    margin: 0;
    padding-top: var(--iv-header-h);
    font-family: var(--iv-font-body);
    color: var(--color-text);
    background: var(--color-bg);
    line-height: 1.6;
    overflow-x: hidden;
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--color-primary); }
a:hover { color: #1e8449; }
h1, h2, h3, h4 {
    font-family: var(--iv-font-head);
    line-height: 1.2;
    margin: 0 0 0.75rem;
}
p { margin: 0 0 1rem; }
ul, ol { margin: 0 0 1rem; padding-left: 1.2rem; }

[hidden] { display: none !important; }

.iv-wrap {
    max-width: var(--iv-page-w);
    margin: 0 auto;
    padding: 0 20px;
}

.iv-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    min-height: var(--iv-header-h);
    background: var(--color-bg);
    box-shadow: 0 2px 8px rgba(31, 45, 36, 0.08);
}

.iv-header a,
.iv-header a:visited { color: var(--color-text); text-decoration: none; }

.iv-header-row {
    display: flex;
    align-items: center;
    gap: 1rem;
    min-height: var(--iv-header-h);
}

.iv-logo img {
    width: 180px;
    height: auto;
}

@media (max-width: 768px) {
    .iv-logo img { width: 120px; }
}

.iv-nav {
    display: flex;
    align-items: center;
    gap: 1.25rem;
    margin-left: auto;
}

.iv-nav-link {
    font-weight: 600;
    font-size: 0.95rem;
}

.iv-nav-link.is-active { color: var(--color-primary); }

.iv-nav-cta {
    background: var(--color-primary);
    color: #fff !important;
    padding: 0.55rem 1.1rem;
    border-radius: 999px;
}

.iv-burger {
    display: block;
    width: 44px;
    height: 44px;
    margin-left: 0.5rem;
    border: 0;
    background: transparent;
    cursor: pointer;
    padding: 10px;
}

.iv-burger span {
    display: block;
    height: 2px;
    margin: 5px 0;
    background: var(--color-text);
    border-radius: 2px;
}

.iv-overlay {
    display: block;
    position: fixed;
    inset: 0;
    z-index: 200;
    background: rgba(0, 0, 0, 0.45);
    opacity: 0;
    visibility: hidden;
    transition: opacity .25s, visibility .25s;
}

.iv-drawer {
    display: block;
    position: fixed;
    z-index: 210;
    background: var(--color-bg);
    overflow-y: auto;
    visibility: hidden;
    transition: opacity .3s ease, visibility .3s;
}

.iv-drawer-sheet {
    inset: 0;
    height: 100vh;
    height: 100dvh;
    padding: 72px 24px 32px;
    opacity: 0;
}

.iv-drawer a {
    display: block;
    padding: 14px 8px;
    font-size: 1.35rem;
    font-weight: 600;
    color: var(--color-text);
    text-decoration: none;
    border-radius: 12px;
}

.iv-drawer-close {
    position: absolute;
    top: 12px;
    right: 16px;
    width: 44px;
    height: 44px;
    border: 0;
    background: transparent;
    font-size: 2rem;
    cursor: pointer;
    color: var(--color-text);
}

body.nav-open { overflow: hidden; }
body.nav-open .iv-overlay { opacity: 1; visibility: visible; display: none; }
body.nav-open .iv-drawer-sheet { opacity: 1; visibility: visible; }

@media (min-width: 901px) {
    .iv-burger { order: 3; }
}

.iv-utility {
    background: var(--color-secondary);
    color: #143522;
    font-size: 0.85rem;
    padding: 0.45rem 0;
}

@media (max-width: 768px) {
    .iv-nav { display: none; }
    .iv-burger { margin-left: auto; }
}

.iv-utility p { margin: 0; }

.iv-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    min-height: 44px;
    padding: 0.7rem 1.35rem;
    border-radius: 999px;
    border: 2px solid transparent;
    font-family: var(--iv-font-head);
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: transform .2s ease, background .2s ease, color .2s ease;
}

.iv-btn[data-iv-variant="primary"] {
    background: var(--color-primary);
    color: #fff;
}

.iv-btn[data-iv-variant="primary"]:hover {
    background: #1e8449;
    color: #fff;
    transform: scale(1.03);
}

.iv-btn[data-iv-variant="ghost"] {
    background: transparent;
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.iv-hero {
    background: linear-gradient(160deg, #dff7e8 0%, #f0fdf4 55%, #e8f8ee 100%);
    padding: 3rem 0 2.5rem;
}

.iv-hero-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    gap: 2rem;
    align-items: center;
}

.iv-hero h1 {
    font-size: clamp(1.8rem, 3.4vw, 2.6rem);
    margin-bottom: 1rem;
}

.iv-hero-note {
    margin: 0 0 1.5rem;
    padding: 1.25rem 1.4rem;
    border-radius: var(--iv-radius);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    font-size: 1.15rem;
    box-shadow: 0 10px 30px rgba(39, 174, 96, 0.08);
}

.iv-hero-note p { margin: 0; }

.iv-hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.iv-hero-still {
    margin: 0;
    border-radius: var(--iv-radius);
    overflow: hidden;
    border: 1px solid var(--color-border);
    background: #fff;
}

.iv-hero-still img {
    width: 100%;
    object-fit: contain;
}

.iv-split {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
    max-width: var(--iv-page-w);
    margin: 0 auto;
    padding: 1.5rem 20px 2rem;
}

@media (min-width: 1024px) {
    .iv-split {
        grid-template-columns: 0.4fr 0.6fr;
        align-items: stretch;
    }
}

.iv-split-rail {
    position: relative;
}

.iv-rail-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--iv-radius);
    padding: 1.25rem;
    box-shadow: 0 8px 24px rgba(39, 174, 96, 0.08);
}

.iv-rail-card.is-pinned {
    position: fixed;
    top: var(--pin-top);
    left: var(--pin-left);
    width: var(--pin-w);
    z-index: 40;
}

.iv-rail-card.is-end {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    top: auto;
}

.iv-rail-name {
    font-family: var(--iv-font-head);
    font-weight: 700;
    margin: 0.75rem 0;
}

.iv-rail-facts {
    list-style: none;
    padding: 0;
    margin: 0 0 1rem;
    font-size: 0.92rem;
    color: var(--color-text-light);
}

.iv-rail-facts li { margin-bottom: 0.35rem; }
.iv-rail-checked { font-size: 0.85rem; color: var(--color-text-light); }

.iv-app-icon {
    width: 96px;
    height: 96px;
    border-radius: 22%;
    object-fit: contain;
    background: #fff;
    border: 1px solid var(--color-border);
}

.iv-section-head { margin-bottom: 1.25rem; }
.iv-section-head h2 { font-size: clamp(1.35rem, 2.4vw, 1.85rem); }
.iv-section-head p { color: var(--color-text-light); margin: 0; }

.iv-faq,
.iv-app,
.iv-install,
.iv-versions,
.iv-glossary {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--iv-radius);
    padding: 1.5rem;
    margin-bottom: 1.25rem;
    opacity: 0;
    transform: rotate(-1.2deg) translateY(12px);
    animation: iv-tilt-settle 0.55s ease forwards;
}

.iv-faq { animation-delay: 0.05s; }
.iv-app { animation-delay: 0.1s; }
.iv-install { animation-delay: 0.15s; }
.iv-versions { animation-delay: 0.2s; }
.iv-glossary { animation-delay: 0.25s; }

@keyframes iv-tilt-settle {
    to { opacity: 1; transform: none; }
}

@media (prefers-reduced-motion: reduce) {
    .iv-faq,
    .iv-app,
    .iv-install,
    .iv-versions,
    .iv-glossary {
        animation: none;
        opacity: 1;
        transform: none;
    }
    .iv-btn[data-iv-variant="primary"]:hover { transform: none; }
}

.iv-faq-item {
    border-bottom: 1px solid var(--color-border);
    padding: 0.35rem 0;
}

.iv-faq-item summary {
    cursor: pointer;
    font-weight: 700;
    font-family: var(--iv-font-head);
    padding: 0.85rem 0;
    list-style: none;
}

.iv-faq-item summary::-webkit-details-marker { display: none; }
.iv-faq-item p { color: var(--color-text-light); }

.iv-app-badges {
    font-size: 0.78rem;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: var(--color-text-light);
    margin-bottom: 1rem;
}

.iv-app-head {
    display: flex;
    gap: 1rem;
    align-items: center;
    margin-bottom: 1rem;
}

.iv-app-name { margin: 0 0 0.35rem; font-size: 1.25rem; }
.iv-app-dev { margin: 0; color: var(--color-text-light); font-size: 0.92rem; }
.iv-app-facts { color: var(--color-text-light); }
.iv-app-note,
.iv-app-checked { font-size: 0.92rem; color: var(--color-text-light); }

.iv-check { list-style: none; padding: 0; }
.iv-check li {
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--color-border);
}

.iv-version-list {
    list-style: none;
    padding: 0;
}

.iv-version-list li {
    display: grid;
    grid-template-columns: 4.5rem 7rem 1fr;
    gap: 0.75rem;
    padding: 0.7rem 0;
    border-bottom: 1px solid var(--color-border);
    font-size: 0.95rem;
}

.iv-version-list span {
    font-weight: 700;
    color: var(--color-primary);
}

.iv-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    list-style: none;
    padding: 0;
    margin-bottom: 1rem;
}

.iv-chips li {
    background: #e5f8ec;
    color: var(--color-primary);
    border-radius: 999px;
    padding: 0.35rem 0.85rem;
    font-size: 0.85rem;
    font-weight: 600;
}

.iv-gloss {
    display: grid;
    gap: 0.75rem;
}

.iv-gloss div {
    background: #f7fdf9;
    border-radius: 16px;
    padding: 0.75rem 1rem;
}

.iv-gloss dt { font-weight: 700; }
.iv-gloss dd { margin: 0.25rem 0 0; color: var(--color-text-light); }

.iv-cta {
    background: linear-gradient(135deg, #27ae60, #52be80);
    color: #fff;
    padding: 3rem 0;
    text-align: center;
}

.iv-cta h2 { color: #fff; }
.iv-cta p { color: rgba(255, 255, 255, 0.92); max-width: 40rem; margin: 0 auto 1.25rem; }
.iv-cta .iv-btn[data-iv-variant="primary"] {
    background: #fff;
    color: var(--color-primary);
}

.iv-page {
    padding: 2rem 0 3rem;
}

.iv-page h1 { font-size: clamp(1.7rem, 3vw, 2.3rem); }

.iv-crumbs {
    font-size: 0.88rem;
    color: var(--color-text-light);
    margin: 0 0 0.75rem;
}

.iv-crumbs a { color: var(--color-text-light); }

.iv-prose {
    max-width: 720px;
}

.iv-prose h2 { margin-top: 2rem; }

.iv-card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.25rem;
}

.iv-brief-card {
    border-radius: var(--iv-radius);
    border: 1px solid var(--color-border);
    background: var(--color-surface);
    overflow: hidden;
}

.iv-brief-band {
    height: 88px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary) 60%, var(--color-accent));
}

.iv-brief-card-body { padding: 1.15rem 1.25rem 1.4rem; }
.iv-brief-card h2,
.iv-brief-card h3 { font-size: 1.15rem; margin-bottom: 0.4rem; }
.iv-brief-card p { color: var(--color-text-light); font-size: 0.95rem; }

.iv-magazine-lead {
    grid-column: 1 / -1;
}

.iv-magazine-lead .iv-brief-band { height: 140px; }

.iv-table-wrap { overflow-x: auto; }
.iv-table {
    width: 100%;
    border-collapse: collapse;
    min-width: 520px;
}

.iv-table th,
.iv-table td {
    border-bottom: 1px solid var(--color-border);
    text-align: left;
    padding: 0.75rem 0.5rem;
    font-size: 0.95rem;
}

.iv-form {
    display: grid;
    gap: 1rem;
    max-width: 560px;
}

.iv-form label { font-weight: 600; display: grid; gap: 0.35rem; }
.iv-form input,
.iv-form textarea {
    width: 100%;
    border: 1px solid var(--color-border);
    border-radius: 14px;
    padding: 0.75rem 0.9rem;
    font: inherit;
    background: #fff;
}

.iv-form button { justify-self: start; }

.iv-contact-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--iv-radius);
    padding: 1.25rem;
    margin-bottom: 1.5rem;
}

.iv-timeline {
    list-style: none;
    padding: 0;
    border-left: 3px solid var(--color-secondary);
    margin-left: 0.5rem;
}

.iv-timeline li {
    padding: 0 0 1.25rem 1.25rem;
    position: relative;
}

.iv-timeline li::before {
    content: "";
    position: absolute;
    left: -8px;
    top: 0.35rem;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--color-primary);
}

.iv-footer {
    background: #e7f7ee;
    padding: 2.5rem 0 2rem;
    border-top: 1px solid var(--color-border);
}

.iv-footer-card {
    display: grid;
    grid-template-columns: 1.4fr 1fr;
    gap: 1.5rem;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--iv-radius);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
}

.iv-footer-kicker {
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-size: 0.75rem;
    color: var(--color-primary);
    font-weight: 700;
}

.iv-footer-links {
    list-style: none;
    padding: 0;
    margin: 0;
    display: grid;
    gap: 0.4rem;
}

.iv-footer-links a { text-decoration: none; font-weight: 600; color: var(--color-text); }

.iv-footer-legal {
    font-size: 0.88rem;
    color: var(--color-text-light);
}

.iv-footer-legal ul {
    list-style: none;
    padding: 0;
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 0.75rem;
}

.iv-footer-legal a,
.iv-footer-cookie {
    color: var(--color-text);
    font: inherit;
    background: none;
    border: 0;
    padding: 0;
    cursor: pointer;
    text-decoration: underline;
}

.iv-cookie {
    display: none;
}

.iv-cookie:not([hidden]) {
    display: flex;
    position: fixed;
    z-index: 110;
    gap: 12px;
    align-items: center;
    bottom: 16px;
    left: 50%;
    transform: translateX(-50%);
    width: max-content;
    max-width: calc(100% - 32px);
    border-radius: 999px;
    background: #143522;
    color: #f0fdf4;
    padding: 0.65rem 0.85rem 0.65rem 1.1rem;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.18);
}

.iv-cookie p { margin: 0; font-size: 0.88rem; white-space: nowrap; }
.iv-cookie a { color: var(--color-accent); }

.iv-cookie-btn {
    border: 0;
    border-radius: 999px;
    min-height: 40px;
    padding: 0 1rem;
    background: var(--color-accent);
    color: #143522;
    font-weight: 700;
    cursor: pointer;
    box-shadow: none;
}

body.iv-cookie-open { padding-bottom: 72px; }

.iv-404 {
    text-align: center;
    padding: 4rem 0;
}

@media (max-width: 900px) {
    .iv-hero-grid { grid-template-columns: 1fr; }
    .iv-footer-card { grid-template-columns: 1fr; }
    .iv-version-list li { grid-template-columns: 1fr; gap: 0.2rem; }
    .iv-hero-actions .iv-btn { width: 100%; }
    .iv-cookie:not([hidden]) {
        left: 12px;
        right: 12px;
        transform: none;
        width: auto;
        max-width: none;
        border-radius: 20px;
        flex-wrap: wrap;
    }
    .iv-cookie p { white-space: normal; }
}

@media (max-width: 480px) {
    .iv-card-grid { grid-template-columns: 1fr; }
}