/* Perfect Download Manager marketing site — v1 introduction */

/* ---------- Reset + base ---------- */

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

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI Variable", "Segoe UI",
        system-ui, Roboto, "Helvetica Neue", Arial, sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--fg);
    background: var(--bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Design tokens — mirror the app's Fluent dark theme so the site and the app feel
   like the same brand. Orange accent matches the "downloading" progress-bar colour
   we chose in the app. */
:root {
    --bg: #0e1116;
    --bg-alt: #121821;
    --card: #171d27;
    --border: #262d3a;
    --fg: #e6edf3;
    --fg-muted: #8b95a7;
    --accent: #e38b00;
    --accent-strong: #f39c12;
    --success: #2cb84a;
    --paused: #8a8a8a;
    --danger: #d93a3a;
    --shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
    --radius: 12px;
    --radius-sm: 8px;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    color: var(--accent-strong);
    text-decoration: none;
    transition: color 0.15s ease;
}

a:hover {
    color: var(--accent);
    text-decoration: underline;
}

h1, h2, h3, h4 {
    font-weight: 700;
    letter-spacing: -0.01em;
    line-height: 1.2;
    margin: 0 0 0.5em;
    color: #fff;
}

h1 {
    font-size: clamp(2.2rem, 5vw, 3.6rem);
    letter-spacing: -0.03em;
}

h2 {
    font-size: clamp(1.6rem, 3vw, 2.2rem);
}

h3 {
    font-size: 1.15rem;
}

p {
    margin: 0 0 1rem;
    color: var(--fg-muted);
}

.container {
    width: 100%;
    max-width: 1120px;
    margin: 0 auto;
    padding: 0 24px;
}

code {
    font-family: "JetBrains Mono", ui-monospace, SFMono-Regular, "Cascadia Mono",
        "Segoe UI Mono", Consolas, monospace;
    font-size: 0.88em;
    background: rgba(255, 255, 255, 0.06);
    padding: 0.1em 0.4em;
    border-radius: 4px;
    color: var(--fg);
}

/* ---------- Header ---------- */

.site-header {
    position: sticky;
    top: 0;
    z-index: 50;
    background: rgba(14, 17, 22, 0.85);
    backdrop-filter: saturate(160%) blur(14px);
    -webkit-backdrop-filter: saturate(160%) blur(14px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
    gap: 24px;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    color: #fff;
    font-weight: 700;
    letter-spacing: -0.01em;
}

.brand:hover {
    text-decoration: none;
    color: #fff;
}

.brand img {
    border-radius: 6px;
}

.brand-name {
    font-size: 0.98rem;
}

.site-nav {
    display: flex;
    gap: 8px;
    align-items: center;
}

.site-nav a {
    color: var(--fg-muted);
    font-weight: 500;
    padding: 8px 12px;
    border-radius: var(--radius-sm);
    font-size: 0.95rem;
}

.site-nav a:hover {
    color: #fff;
    background: rgba(255, 255, 255, 0.05);
    text-decoration: none;
}

.nav-toggle {
    display: none;
    width: 40px;
    height: 40px;
    background: transparent;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    cursor: pointer;
    padding: 8px;
    flex-direction: column;
    justify-content: space-between;
    align-items: stretch;
}

.nav-toggle span {
    display: block;
    height: 2px;
    background: var(--fg);
    border-radius: 1px;
    transition: transform 0.2s ease, opacity 0.15s ease;
}

/* ---------- Buttons ---------- */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 22px;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 0.98rem;
    text-decoration: none;
    transition: transform 0.1s ease, box-shadow 0.15s ease, background 0.15s ease,
        border-color 0.15s ease, color 0.15s ease;
    cursor: pointer;
    border: 1px solid transparent;
    line-height: 1;
}

.btn:hover {
    text-decoration: none;
    transform: translateY(-1px);
}

.btn:active {
    transform: translateY(0);
}

.btn-primary {
    background: linear-gradient(180deg, var(--accent-strong) 0%, var(--accent) 100%);
    color: #1a1103;
    box-shadow: 0 6px 18px rgba(227, 139, 0, 0.35);
}

.btn-primary:hover {
    color: #1a1103;
    box-shadow: 0 10px 24px rgba(227, 139, 0, 0.45);
}

.btn-ghost {
    background: transparent;
    color: var(--fg);
    border-color: var(--border);
}

.btn-ghost:hover {
    color: #fff;
    background: rgba(255, 255, 255, 0.04);
    border-color: rgba(255, 255, 255, 0.16);
}

.btn-block {
    width: 100%;
}

/* ---------- Hero ---------- */

.hero {
    padding: 72px 0 32px;
    background: radial-gradient(1200px 500px at 50% -100px,
                rgba(227, 139, 0, 0.14) 0%, transparent 60%);
}

.hero-inner {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 56px;
    align-items: center;
}

.eyebrow {
    display: inline-block;
    padding: 6px 12px;
    background: rgba(227, 139, 0, 0.12);
    color: var(--accent-strong);
    border: 1px solid rgba(227, 139, 0, 0.35);
    border-radius: 999px;
    font-size: 0.82rem;
    font-weight: 600;
    letter-spacing: 0.02em;
    margin-bottom: 20px;
}

.hero-copy .accent {
    color: var(--accent-strong);
    background: linear-gradient(135deg, var(--accent-strong), var(--accent));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.lede {
    font-size: 1.15rem;
    color: var(--fg-muted);
    max-width: 560px;
    margin-bottom: 28px;
}

.cta-row {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.hero-note {
    margin-top: 20px;
    font-size: 0.9rem;
    color: var(--fg-muted);
}

/* Fake app-window shown in the hero to preview the product without a real screenshot. */
.hero-visual {
    position: relative;
}

.hero-card {
    background: linear-gradient(180deg, #1a2130 0%, #141a24 100%);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px;
    box-shadow: var(--shadow);
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.hero-card-row {
    display: flex;
    align-items: center;
    gap: 8px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border);
}

.dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    display: inline-block;
}

.dot-red { background: #ff5f57; }
.dot-amber { background: #febc2e; }
.dot-green { background: #28c840; }

.hero-card-title {
    margin-left: 12px;
    font-size: 0.85rem;
    color: var(--fg-muted);
}

.hero-download {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.hero-file-row {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    font-size: 0.95rem;
}

.hero-file {
    color: #fff;
    font-weight: 500;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    max-width: 60%;
}

.hero-speed {
    color: var(--accent-strong);
    font-weight: 600;
    font-size: 0.85rem;
}

.hero-speed-done { color: var(--success); }
.hero-speed-paused { color: var(--paused); }

.hero-meta {
    display: flex;
    justify-content: space-between;
    font-size: 0.78rem;
    color: var(--fg-muted);
}

.progress {
    height: 8px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.06);
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: var(--accent);
    border-radius: 999px;
    transition: width 0.6s ease;
}

.progress-done { background: var(--success); }
.progress-paused { background: var(--paused); }

/* ---------- Generic section ---------- */

.section {
    padding: 80px 0;
    position: relative;
}

.section-alt {
    background: var(--bg-alt);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}

.section-title {
    text-align: center;
    margin-bottom: 12px;
}

.section-lede {
    text-align: center;
    max-width: 640px;
    margin: 0 auto 48px;
    color: var(--fg-muted);
    font-size: 1.05rem;
}

/* ---------- Features grid ---------- */

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 20px;
}

.feature {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px;
    transition: transform 0.15s ease, border-color 0.15s ease, background 0.15s ease;
}

.feature:hover {
    transform: translateY(-2px);
    border-color: rgba(227, 139, 0, 0.4);
}

.feature-icon {
    font-size: 1.8rem;
    margin-bottom: 10px;
    line-height: 1;
}

.feature h3 {
    margin: 0 0 6px;
}

.feature p {
    margin: 0;
    color: var(--fg-muted);
    font-size: 0.94rem;
}

/* ---------- Download ---------- */

.download-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
    max-width: 780px;
    margin: 0 auto;
}

.download-card {
    position: relative;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 28px 24px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.download-card-primary {
    border-color: rgba(227, 139, 0, 0.5);
    box-shadow: 0 8px 30px rgba(227, 139, 0, 0.14);
}

.download-badge {
    position: absolute;
    top: 14px;
    right: 14px;
    background: rgba(227, 139, 0, 0.15);
    color: var(--accent-strong);
    border: 1px solid rgba(227, 139, 0, 0.4);
    padding: 3px 10px;
    border-radius: 999px;
    font-size: 0.75rem;
    font-weight: 600;
}

.download-card h3 {
    margin: 0;
}

.download-card p {
    margin: 0;
    color: var(--fg-muted);
    font-size: 0.94rem;
    flex-grow: 1;
}

.download-meta {
    font-size: 0.8rem;
    color: var(--fg-muted);
    margin-top: 4px;
    text-align: center;
}

.install-steps {
    max-width: 720px;
    margin: 56px auto 0;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 28px 32px;
}

.install-steps h3 {
    margin-top: 0;
}

.install-steps ol {
    padding-left: 20px;
    color: var(--fg-muted);
}

.install-steps li {
    margin-bottom: 8px;
    line-height: 1.7;
}

/* ---------- Split (extension section) ---------- */

.split {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: center;
}

.split-copy h2 {
    text-align: left;
    margin-bottom: 16px;
}

.split-copy .check-list {
    list-style: none;
    padding: 0;
    margin: 0 0 24px;
}

.split-copy .check-list li {
    padding: 6px 0 6px 28px;
    position: relative;
    color: var(--fg);
}

.split-copy .check-list li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 12px;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--success);
    box-shadow: inset 0 0 0 3px rgba(255, 255, 255, 0.12);
}

.menu-card {
    background: linear-gradient(180deg, #1c2432 0%, #131924 100%);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 12px;
    box-shadow: var(--shadow);
    max-width: 320px;
    margin: 0 auto;
}

.menu-title {
    font-size: 0.8rem;
    color: var(--fg-muted);
    padding: 8px 12px 10px;
    border-bottom: 1px solid var(--border);
    margin-bottom: 6px;
}

.menu-item {
    padding: 10px 14px;
    border-radius: var(--radius-sm);
    font-size: 0.95rem;
    color: var(--fg);
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: default;
}

.menu-item-highlight {
    background: rgba(227, 139, 0, 0.14);
    color: #fff;
    font-weight: 600;
}

.menu-item-highlight img {
    border-radius: 4px;
}

/* ---------- FAQ ---------- */

.faq-list {
    max-width: 780px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.faq {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 4px 20px;
    transition: border-color 0.15s ease;
}

.faq[open] {
    border-color: rgba(227, 139, 0, 0.4);
}

.faq summary {
    cursor: pointer;
    padding: 18px 0;
    font-weight: 600;
    color: #fff;
    list-style: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.faq summary::-webkit-details-marker {
    display: none;
}

.faq summary::after {
    content: "+";
    color: var(--accent-strong);
    font-size: 1.4rem;
    font-weight: 400;
    transition: transform 0.2s ease;
    line-height: 1;
}

.faq[open] summary::after {
    content: "−";
}

.faq p {
    padding-bottom: 18px;
    margin: 0;
    color: var(--fg-muted);
}

/* ---------- Footer ---------- */

.site-footer {
    padding: 48px 0 32px;
    border-top: 1px solid var(--border);
    background: var(--bg-alt);
}

.footer-inner {
    display: flex;
    flex-direction: column;
    gap: 20px;
    align-items: center;
    text-align: center;
}

.footer-brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-weight: 600;
    color: #fff;
}

.footer-nav {
    display: flex;
    flex-wrap: wrap;
    gap: 4px 20px;
    justify-content: center;
}

.footer-nav a {
    color: var(--fg-muted);
    font-size: 0.92rem;
    padding: 6px 4px;
}

.footer-nav a:hover {
    color: #fff;
    text-decoration: none;
}

.footer-copy {
    color: var(--fg-muted);
    font-size: 0.85rem;
    margin: 0;
}

/* ---------- Simple content pages (privacy, etc.) ---------- */

.doc-content {
    max-width: 780px;
    margin: 48px auto;
    padding: 0 24px;
}

.doc-content h1 {
    margin-bottom: 24px;
}

.doc-content h2 {
    margin: 32px 0 12px;
    font-size: 1.35rem;
}

.doc-content p, .doc-content li {
    color: var(--fg-muted);
}

.doc-content ul {
    padding-left: 20px;
}

.doc-content li {
    margin-bottom: 8px;
}

/* ---------- Responsive ---------- */

@media (max-width: 900px) {
    .hero-inner,
    .split {
        grid-template-columns: 1fr;
    }

    .hero {
        padding-top: 48px;
    }

    .hero-visual {
        order: 2;
    }

    .split-copy h2 {
        text-align: center;
    }

    .menu-card {
        margin-top: 24px;
    }
}

@media (max-width: 720px) {
    .nav-toggle {
        display: flex;
    }

    .site-nav {
        display: none;
        position: absolute;
        top: 64px;
        left: 0;
        right: 0;
        background: rgba(14, 17, 22, 0.98);
        backdrop-filter: blur(14px);
        border-bottom: 1px solid var(--border);
        flex-direction: column;
        padding: 12px;
        gap: 4px;
    }

    .site-nav.is-open {
        display: flex;
    }

    .site-nav a {
        padding: 12px 16px;
        font-size: 1rem;
    }

    .brand-name {
        font-size: 0.9rem;
    }

    .section {
        padding: 56px 0;
    }
}

/* ---------- Motion preference ---------- */

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }

    * {
        animation-duration: 0.001ms !important;
        transition-duration: 0.001ms !important;
    }
}