:root {
    --primary: #0a1628;
    --secondary: #2d628c;
    --accent: #a2d7e9;
    --text-main: #ffffff;
    --text-muted: #a8c0d0;
    --glass: rgba(255, 255, 255, 0.08);
    --glass-border: rgba(255, 255, 255, 0.12);
    --section-bg: rgba(10, 22, 40, 0.95);

    --font-head: 'Montserrat', sans-serif;
    --font-body: 'Inter', sans-serif;
    --transition: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
    --page-gutter: clamp(1.5rem, 4vw + 0.5rem, 5rem);
}

[data-theme="light"] {
    --primary: #e8f4fc;
    --secondary: #2d628c;
    --accent: #1a5f8a;
    --text-main: #0a1628;
    --text-muted: #4a6580;
    --glass: rgba(0, 0, 0, 0.04);
    --glass-border: rgba(0, 0, 0, 0.1);
    --section-bg: rgba(255, 255, 255, 0.95);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    background: var(--primary);
    color: var(--text-main);
    line-height: 1.6;
    overflow-x: hidden;
    transition: background 0.8s ease, color 0.8s ease;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

h1, h2, h3, h4 {
    font-family: var(--font-head);
    font-weight: 700;
}

a {
    color: var(--accent);
    transition: var(--transition);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--page-gutter);
}

/* Scroll progress */
.scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    width: 0%;
    height: 3px;
    background: var(--accent);
    z-index: 10000;
    transition: width 0.1s ease, background 0.8s ease;
    box-shadow: 0 0 10px rgba(162, 215, 233, 0.5);
}

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
    padding: 1.25rem var(--page-gutter);
    z-index: 1000;
    background: transparent;
    transition: var(--transition);
}

.navbar-start {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    justify-self: start;
    min-width: 0;
}

.navbar .controls {
    justify-self: end;
}

.nav-back {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.45rem 0.85rem 0.45rem 0.65rem;
    border-radius: 999px;
    text-decoration: none;
    color: var(--text-main);
    background: var(--glass);
    border: 1px solid var(--glass-border);
    font-family: var(--font-head);
    font-size: 0.82rem;
    font-weight: 600;
    letter-spacing: 0.3px;
    transition: var(--transition);
    max-width: min(42vw, 220px);
}

.nav-back span {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.nav-back:hover {
    color: var(--accent);
    border-color: var(--accent);
    transform: translateY(-1px);
}

.nav-back i {
    font-size: 0.95rem;
    flex-shrink: 0;
}

.navbar.scrolled {
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    background: var(--section-bg);
    padding: 0.85rem var(--page-gutter);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
}

.logo {
    font-family: var(--font-head);
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--accent);
    letter-spacing: 2px;
    text-decoration: none;
}

.app-nav-title {
    font-family: var(--font-head);
    font-size: 0.95rem;
    font-weight: 600;
    letter-spacing: 1px;
    color: var(--text-muted);
    text-transform: uppercase;
    justify-self: center;
    text-align: center;
}

.controls {
    display: flex;
    gap: 0.75rem;
}

.btn-icon {
    background: var(--glass);
    border: 1px solid var(--glass-border);
    color: var(--text-main);
    width: 42px;
    height: 42px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: var(--transition);
}

.btn-icon:hover {
    background: var(--accent);
    color: white;
    transform: scale(1.1);
}

/* Main layout */
.app-main {
    flex: 1;
    padding-top: 5.5rem;
}

.section {
    padding: 4rem 0;
}

.section-title {
    font-size: clamp(1.5rem, 3vw, 2rem);
    text-align: center;
    margin-bottom: 2.5rem;
    position: relative;
    letter-spacing: 1px;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -12px;
    left: 50%;
    transform: translateX(-50%);
    width: 50px;
    height: 3px;
    background: var(--accent);
    border-radius: 2px;
}

/* Hero / header */
.app-hero {
    padding: 3rem 0 4rem;
}

.app-hero-grid {
    margin-inline: var(--page-gutter);
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 3rem;
    align-items: start;
}

.app-hero-aside {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0;
}

.app-hero--help {
    padding: 2rem 0 2.5rem;
}

.app-hero--help .app-logo {
    width: 112px;
    height: 112px;
    border-radius: 24px;
}

.app-hero--help .app-name {
    font-size: clamp(1.5rem, 3vw, 2.2rem);
}

.app-category {
    display: inline-block;
    font-size: 0.65rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--accent);
    margin-bottom: 0.35rem;
}

.app-logo {
    width: 140px;
    height: 140px;
    border-radius: 28px;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.35);
    object-fit: cover;
}

.app-name {
    font-size: clamp(1.8rem, 4vw, 2.8rem);
    margin-bottom: 0.35rem;
    color: var(--text-main);
}

.app-name a {
    color: inherit;
    text-decoration: none;
}

.app-name a:hover {
    color: var(--accent);
}

.app-developer {
    font-size: 1rem;
    font-weight: 500;
    margin-bottom: 1rem;
}

.app-developer a {
    color: var(--accent);
    text-decoration: none;
}

.app-tagline {
    font-size: 1.05rem;
    color: var(--text-muted);
    margin-bottom: 1.75rem;
    max-width: 640px;
    line-height: 1.75;
}

/* Download buttons */
.app-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.85rem;
}

.store-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.65rem 1.25rem;
    border-radius: 14px;
    text-decoration: none;
    background: var(--glass);
    border: 1px solid var(--glass-border);
    color: var(--text-main);
    transition: var(--transition);
    min-width: 180px;
}

.store-btn:hover {
    transform: translateY(-3px);
    border-color: var(--accent);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.2);
}

.store-btn img {
    width: 28px;
    height: 28px;
    object-fit: contain;
    flex-shrink: 0;
}

.store-btn-label {
    display: flex;
    flex-direction: column;
    line-height: 1.2;
}

.store-btn-s {
    font-size: 0.65rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    opacity: 0.75;
}

.store-btn-m {
    font-size: 0.9rem;
    font-weight: 600;
}

.store-btn--pro {
    border-color: rgba(255, 193, 7, 0.4);
}

.store-btn--pro:hover {
    border-color: #ffc107;
}

.help-link-top {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.65rem 1rem;
    margin-bottom: 1.25rem;
    border-radius: 12px;
    text-decoration: none;
    background: var(--glass);
    border: 1px solid var(--glass-border);
    color: var(--text-main);
    transition: var(--transition);
    align-self: flex-start;
}

.help-link-top:hover {
    border-color: var(--accent);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
}

.help-link-top img {
    width: 28px;
    height: 28px;
    flex-shrink: 0;
}

.help-link-top span {
    font-size: 0.9rem;
    color: var(--text-muted);
    line-height: 1.35;
    text-align: left;
}

.help-link-top strong {
    color: var(--accent);
    font-weight: 600;
}

/* Screenshots */
.app-screenshots-wrap {
    overflow-x: auto;
    padding-bottom: 1rem;
    -webkit-overflow-scrolling: touch;
}

.app-screenshots-list {
    display: flex;
    gap: 1.25rem;
    padding: 0.5rem 0;
    min-width: min-content;
}

.app-screenshot-link {
    flex-shrink: 0;
    border-radius: 16px;
    overflow: hidden;
    border: 1px solid var(--glass-border);
    transition: var(--transition);
}

.app-screenshot-link:hover {
    transform: translateY(-6px) scale(1.02);
    border-color: var(--accent);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.25);
}

.app-screenshot {
    display: block;
    height: 360px;
    width: auto;
    object-fit: cover;
}

/* Description */
.app-description {
    background: var(--section-bg);
}

.app-description-content {
    max-width: 800px;
    margin: 0 auto;
    color: var(--text-muted);
    font-size: 1.05rem;
    line-height: 1.85;
}

.app-description-content p {
    margin-bottom: 1rem;
}

.app-description-content ul {
    margin: 0.5rem 0 1.25rem 1.5rem;
}

.app-description-content li {
    margin-bottom: 0.4rem;
}

.app-description-content code {
    background: var(--glass);
    border: 1px solid var(--glass-border);
    padding: 0.15rem 0.45rem;
    border-radius: 6px;
    font-size: 0.9em;
}

/* Related apps (Also look at) — compact cards */
.related-apps {
    display: flex;
    flex-direction: column;
    gap: 0.85rem;
    max-width: 720px;
    margin: 0 auto;
}

.related-apps-grid {
    display: flex;
    flex-direction: column;
    gap: 0.65rem;
}

.related-app-card {
    display: flex;
    flex-direction: row;
    align-items: stretch;
    border-radius: 14px;
    overflow: hidden;
    border: 1px solid var(--glass-border);
    background: var(--glass);
    text-decoration: none;
    transition: var(--transition);
    min-height: 72px;
}

.related-app-card:hover {
    transform: translateY(-3px);
    border-color: var(--accent);
    box-shadow: 0 12px 28px rgba(0, 0, 0, 0.18);
}

.related-app-thumb {
    width: 72px;
    flex-shrink: 0;
    background: rgba(0, 0, 0, 0.15);
    display: flex;
    align-items: center;
    justify-content: center;
}

.related-app-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    min-height: 72px;
}

.related-app-thumb-placeholder {
    font-family: var(--font-head);
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--accent);
}

.related-app-body {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 0.15rem;
    padding: 0.65rem 0.85rem;
    min-width: 0;
}

.related-app-category {
    font-size: 0.65rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--accent);
}

.related-app-name {
    font-family: var(--font-head);
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-main);
    line-height: 1.2;
}

.related-app-desc {
    font-size: 0.78rem;
    color: var(--text-muted);
    line-height: 1.35;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.related-app-card:hover .related-app-name {
    color: var(--accent);
}

.related-apps-spoiler {
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    background: var(--glass);
    overflow: hidden;
}

.related-apps-spoiler summary {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 1rem 1.25rem;
    cursor: pointer;
    list-style: none;
    font-family: var(--font-head);
    font-weight: 600;
    font-size: 0.9rem;
    letter-spacing: 0.5px;
    color: var(--accent);
    transition: var(--transition);
    user-select: none;
}

.related-apps-spoiler summary::-webkit-details-marker {
    display: none;
}

.related-apps-spoiler summary:hover {
    background: rgba(162, 215, 233, 0.08);
}

.related-apps-chevron {
    transition: transform 0.3s ease;
}

.related-apps-spoiler[open] .related-apps-chevron {
    transform: rotate(180deg);
}

.related-apps-spoiler-body {
    padding: 0 1.25rem 1.25rem;
    animation: spoilerIn 0.35s ease;
}

@keyframes spoilerIn {
    from {
        opacity: 0;
        transform: translateY(-8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Help page */
.page-help .app-main {
    padding-top: 5rem;
}

.page-help .section--help-content {
    padding: 0 0 4rem;
}

.help-content {
    max-width: 900px;
    margin: 0 auto;
    margin-inline: var(--page-gutter);
}

.md_preview {
    background: var(--glass);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    padding: 2rem 2.5rem;
    color: var(--text-muted);
    line-height: 1.8;
}

.md_preview p,
.md_preview li {
    overflow-wrap: break-word;
}

.md_preview .table-wrap {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    margin: 1rem 0;
}

.md_preview h1, .md_preview h2, .md_preview h3, .md_preview h4 {
    color: var(--text-main);
    margin: 1.5rem 0 0.75rem;
}

.md_preview h1:first-child, .md_preview h2:first-child {
    margin-top: 0;
}

.md_preview p {
    margin-bottom: 1rem;
}

.md_preview ul, .md_preview ol {
    margin: 0.5rem 0 1rem 1.5rem;
}

.md_preview li {
    margin-bottom: 0.35rem;
}

.md_preview table {
    width: 100%;
    border-collapse: collapse;
    margin: 1rem 0;
    font-size: 0.95rem;
}

.md_preview th, .md_preview td {
    border: 1px solid var(--glass-border);
    padding: 0.6rem 0.85rem;
    text-align: left;
    vertical-align: top;
    word-break: normal;
    overflow-wrap: break-word;
    hyphens: auto;
}

.md_preview th {
    background: var(--glass);
    color: var(--text-main);
    min-width: 7rem;
}

.md_preview td {
    min-width: 10rem;
}

.md_preview code {
    background: var(--glass);
    border: 1px solid var(--glass-border);
    padding: 0.15rem 0.4rem;
    border-radius: 5px;
    font-size: 0.88em;
    overflow-wrap: anywhere;
    word-break: break-all;
}

.md_preview pre {
    background: var(--glass);
    border: 1px solid var(--glass-border);
    padding: 1rem;
    border-radius: 10px;
    overflow-x: auto;
    margin: 1rem 0;
}

.md_preview hr {
    border: none;
    border-top: 1px solid var(--glass-border);
    margin: 1.5rem 0;
}

.md_preview a {
    color: var(--accent);
}

.help-wip {
    text-align: center;
    padding: 2rem 1rem;
}

.help-wip h2 {
    color: var(--accent);
    margin-bottom: 0.75rem;
}

/* Footer */
.app-footer {
    text-align: center;
    padding: 2.5rem var(--page-gutter);
    color: var(--text-muted);
    font-size: 0.9rem;
    background: var(--section-bg);
    border-top: 1px solid var(--glass-border);
}

.app-footer-inner {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    max-width: 1200px;
    margin: 0 auto;
    width: 100%;
}

.app-footer-links {
    display: flex;
    gap: 1.5rem;
    list-style: none;
}

.app-footer-links a {
    color: var(--text-muted);
    text-decoration: none;
}

.app-footer-links a:hover {
    color: var(--accent);
}

/* Reveal animation */
.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Responsive */
@media (min-width: 901px) and (max-width: 1299px) {
    .app-hero-grid {
        gap: 2.25rem;
    }

    .app-logo {
        width: 120px;
        height: 120px;
    }
}

@media (max-width: 900px) {
    .container {
        padding: 0 var(--page-gutter);
    }

    .section {
        padding: 2.75rem 0;
    }

    .section-title {
        font-size: 1.35rem;
        margin-bottom: 1.75rem;
    }

    .section-title::after {
        bottom: -10px;
        width: 40px;
    }

    .app-main {
        padding-top: 4.75rem;
    }

    .app-hero {
        padding: 1.75rem 0 2rem;
    }

    .navbar {
        padding: 1rem var(--page-gutter);
    }

    .navbar.scrolled {
        padding: 0.75rem var(--page-gutter);
    }

    .app-nav-title {
        visibility: hidden;
    }

    .page-help .app-nav-title {
        visibility: hidden;
    }

    .page-help .nav-back {
        max-width: min(55vw, 240px);
    }

    .app-hero-grid {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 1.25rem;
    }

    .app-logo {
        width: 96px;
        height: 96px;
        margin: 0 auto;
        border-radius: 22px;
    }

    .app-name {
        font-size: 1.65rem;
    }

    .app-tagline {
        margin-left: auto;
        margin-right: auto;
        font-size: 0.95rem;
        margin-bottom: 1.25rem;
    }

    .app-hero--help .app-tagline {
        display: -webkit-box;
        -webkit-line-clamp: 3;
        -webkit-box-orient: vertical;
        overflow: hidden;
    }

    .app-actions {
        justify-content: center;
    }

    .store-btn {
        min-width: 148px;
        padding: 0.55rem 1rem;
    }

    .store-btn-m {
        font-size: 0.82rem;
    }

    .app-screenshot {
        height: 240px;
    }

    .app-screenshots-wrap {
        margin: 0 -0.25rem;
    }

    .app-description-content {
        font-size: 0.95rem;
        line-height: 1.75;
    }

    .help-link-top {
        display: flex;
        margin-left: auto;
        margin-right: auto;
        width: 100%;
        max-width: 360px;
        justify-content: flex-start;
        align-self: auto;
    }

    .related-apps {
        max-width: none;
        margin-inline: var(--page-gutter);
    }

    .related-app-thumb {
        width: 64px;
    }

    .related-app-thumb img {
        min-height: 64px;
    }

    .related-app-card {
        min-height: 64px;
    }

    .page-help .app-main {
        padding-top: 4.5rem;
    }

    .page-help .section--help-content {
        padding: 0 0 2.5rem;
    }

    .app-hero--help {
        padding: 1.25rem 0 1.75rem;
    }

    .app-hero--help .app-logo {
        width: 88px;
        height: 88px;
        border-radius: 20px;
    }

    .md_preview {
        padding: 1rem 1.1rem;
        border-radius: 14px;
        font-size: 0.95rem;
        line-height: 1.7;
    }

    .md_preview h1 {
        font-size: 1.35rem;
    }

    .md_preview h2 {
        font-size: 1.15rem;
    }

    .md_preview h3,
    .md_preview h4 {
        font-size: 1.05rem;
    }

    .md_preview .table-wrap {
        overflow-x: visible;
    }

    .md_preview table {
        display: block;
        width: 100%;
        margin: 0;
        font-size: 0.95rem;
        border: none;
    }

    .md_preview thead {
        display: none;
    }

    .md_preview tbody {
        display: block;
    }

    .md_preview tbody tr {
        display: block;
        margin-bottom: 0.85rem;
        padding: 0.9rem 1rem;
        border: 1px solid var(--glass-border);
        border-radius: 12px;
        background: rgba(255, 255, 255, 0.03);
    }

    [data-theme="light"] .md_preview tbody tr {
        background: rgba(0, 0, 0, 0.02);
    }

    .md_preview tbody tr:last-child {
        margin-bottom: 0;
    }

    .md_preview td {
        display: block;
        min-width: 0;
        border: none;
        padding: 0;
        word-break: normal;
        overflow-wrap: break-word;
        hyphens: auto;
    }

    .md_preview td:first-child {
        font-weight: 600;
        color: var(--text-main);
        font-size: 0.98rem;
        line-height: 1.45;
    }

    .md_preview td + td {
        margin-top: 0.55rem;
        padding-top: 0.55rem;
        border-top: 1px solid var(--glass-border);
    }

    .md_preview th,
    .md_preview td {
        padding: 0;
    }

    .md_preview pre {
        font-size: 0.82rem;
        padding: 0.75rem;
    }

    .app-footer-inner {
        flex-direction: column;
        text-align: center;
    }
}

@media (min-width: 901px) {
    .app-actions--mobile {
        display: none;
    }
}

@media (max-width: 900px) {
    .app-actions--desktop {
        display: none;
    }

    .app-actions--mobile:not([hidden]) {
        display: flex;
        justify-content: center;
        padding: 0 var(--page-gutter) 2rem;
    }
}