/* ==========================================================================
   Vault AI — Landing Site
   Dark workstation aesthetic. Violet brand, emerald reserved for privacy.
   ========================================================================== */

:root {
    /* -------- Canvas: cool violet-dark, matching Vault AI app -------- */
    --bg-base:        #0b0b14;
    --bg-elevated:    #13131f;
    --bg-card:        #16162a;
    --bg-card-hover:  #1c1c35;
    --border-subtle:  rgba(255, 255, 255, 0.06);
    --border-soft:    rgba(255, 255, 255, 0.10);
    --border-medium:  rgba(255, 255, 255, 0.16);

    --text-primary:   #e8eaf2;
    --text-secondary: #a4a8b8;
    --text-muted:     #6b7080;

    /* -------- Brand: violet (primary) -------- */
    --accent:         #818cf8;
    --accent-hover:   #a5b0fa;
    --accent-dim:     rgba(129, 140, 248, 0.12);
    --accent-glow:    rgba(129, 140, 248, 0.35);
    --accent-deep:    #6366f1;
    --accent-border:  rgba(129, 140, 248, 0.30);

    /* -------- Privacy signal: emerald (reserved, single meaning) --------
       Used ONLY for the "offline" pill, privacy icons, and the
       privacy-vs-cloud diagram. Do not use as a brand color. */
    --privacy:        #10b981;
    --privacy-hover:  #34d399;
    --privacy-dim:    rgba(16, 185, 129, 0.12);
    --privacy-glow:   rgba(16, 185, 129, 0.35);
    --privacy-border: rgba(16, 185, 129, 0.25);

    --danger:         #ef4444;

    /* -------- Typography --------
       Sans for UI/body. Serif italic for display emphasis (matches Vault AI
       app's "Your private AI workspace" treatment and foxavideo.com). */
    --font-sans:  'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-serif: 'Instrument Serif', 'Cormorant Garamond', Georgia, 'Times New Roman', serif;
    --font-mono:  'JetBrains Mono', 'SF Mono', Menlo, Consolas, monospace;

    /* Spacing */
    --space-xs:  0.5rem;
    --space-sm:  0.75rem;
    --space-md:  1rem;
    --space-lg:  1.5rem;
    --space-xl:  2.5rem;
    --space-2xl: 4rem;
    --space-3xl: 6rem;

    /* Layout */
    --container-max: 1200px;
    --radius-sm:  6px;
    --radius-md:  10px;
    --radius-lg:  16px;
    --radius-xl:  20px;
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    font-family: var(--font-sans);
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-primary);
    background: var(--bg-base);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

a {
    color: inherit;
    text-decoration: none;
    transition: color 0.15s ease;
}

img,
svg {
    display: block;
    max-width: 100%;
}

/* ==========================================================================
   Layout primitives
   ========================================================================== */

.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

.section {
    padding: var(--space-3xl) 0;
    position: relative;
}

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

.section-head {
    text-align: center;
    max-width: 720px;
    margin: 0 auto var(--space-2xl);
}

.eyebrow {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--accent);
    margin-bottom: var(--space-md);
}

.text-accent {
    color: var(--accent);
}

.text-privacy {
    color: var(--privacy);
}

/* ==========================================================================
   Typography
   ========================================================================== */

h1, h2, h3, h4 {
    font-weight: 700;
    line-height: 1.15;
    letter-spacing: -0.02em;
    color: var(--text-primary);
}

h1 {
    font-size: clamp(2.25rem, 5vw + 1rem, 4.25rem);
    font-weight: 800;
    letter-spacing: -0.03em;
}

h2 {
    font-size: clamp(1.75rem, 2.5vw + 1rem, 2.75rem);
    margin-bottom: var(--space-md);
}

h3 {
    font-size: 1.25rem;
    margin-bottom: var(--space-sm);
}

h4 {
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-secondary);
    margin-bottom: var(--space-md);
}

p {
    color: var(--text-secondary);
}

.section-sub {
    font-size: 1.125rem;
    color: var(--text-secondary);
    margin-top: var(--space-md);
}

/* Serif italic display emphasis — for one-word accents inside headlines.
   Matches Vault AI app's "Your private AI workspace" and foxavideo.com's
   "Private AI that runs *where your data lives*". */
.display-em {
    font-family: var(--font-serif);
    font-style: italic;
    font-weight: 500;
    letter-spacing: -0.01em;
}

/* ==========================================================================
   Buttons
   ========================================================================== */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-xs);
    padding: 0.75rem 1.5rem;
    font-family: var(--font-sans);
    font-size: 0.95rem;
    font-weight: 600;
    line-height: 1;
    border: 1px solid transparent;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all 0.15s ease;
    white-space: nowrap;
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1rem;
}

.btn-block {
    width: 100%;
}

.btn-primary {
    background: var(--accent-deep);
    color: #ffffff;
    border-color: var(--accent-deep);
    font-weight: 600;
}

.btn-primary:hover {
    background: var(--accent);
    border-color: var(--accent);
    transform: translateY(-1px);
    box-shadow: 0 8px 24px var(--accent-glow);
}

.btn-outline {
    background: transparent;
    color: var(--text-primary);
    border-color: var(--border-medium);
}

.btn-outline:hover {
    border-color: var(--accent);
    color: var(--accent);
}

.btn-ghost {
    background: transparent;
    color: var(--text-primary);
    border-color: var(--border-soft);
}

.btn-ghost:hover {
    background: var(--bg-card);
    border-color: var(--border-medium);
}

/* ==========================================================================
   Navigation
   ========================================================================== */

.site-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    background: rgba(11, 11, 20, 0.7);
    border-bottom: 1px solid transparent;
    transition: border-color 0.2s ease, background 0.2s ease;
}

.site-nav.is-scrolled {
    background: rgba(11, 11, 20, 0.92);
    border-bottom-color: var(--border-subtle);
}

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

.brand {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    color: var(--text-primary);
    font-weight: 700;
    font-size: 1.125rem;
    letter-spacing: -0.01em;
}

.brand-mark {
    color: var(--accent);
    flex-shrink: 0;
}

.brand-name-accent {
    color: var(--accent);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: var(--space-xl);
}

.nav-links a {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-secondary);
}

.nav-links a:hover {
    color: var(--text-primary);
}

/* Buttons in nav must not inherit the dim link color (specificity fix). */
.nav-links a.btn,
.nav-links a.btn:hover {
    color: #ffffff;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 28px;
    height: 22px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0;
}

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

.nav-toggle.is-open span:nth-child(1) {
    transform: translateY(10px) rotate(45deg);
}

.nav-toggle.is-open span:nth-child(2) {
    opacity: 0;
}

.nav-toggle.is-open span:nth-child(3) {
    transform: translateY(-10px) rotate(-45deg);
}

.mobile-menu {
    display: none;
    flex-direction: column;
    gap: var(--space-md);
    padding: var(--space-lg);
    background: var(--bg-elevated);
    border-top: 1px solid var(--border-subtle);
}

.mobile-menu[hidden] {
    display: none !important;
}

.mobile-menu a {
    font-size: 1rem;
    color: var(--text-secondary);
    padding: var(--space-xs) 0;
}

.mobile-menu a:hover {
    color: var(--text-primary);
}

.mobile-menu a.btn {
    color: #ffffff;
    margin-top: var(--space-sm);
}

/* ==========================================================================
   Hero
   ========================================================================== */

.hero {
    position: relative;
    padding: 9rem 0 var(--space-3xl);
    overflow: hidden;
    text-align: center;
}

.hero-bg {
    position: absolute;
    inset: 0;
    pointer-events: none;
    z-index: 0;
}

.hero-grid {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(129, 140, 248, 0.06) 1px, transparent 1px),
        linear-gradient(90deg, rgba(129, 140, 248, 0.06) 1px, transparent 1px);
    background-size: 64px 64px;
    mask-image: radial-gradient(ellipse 80% 60% at 50% 30%, black 30%, transparent 70%);
    -webkit-mask-image: radial-gradient(ellipse 80% 60% at 50% 30%, black 30%, transparent 70%);
}

.hero-glow {
    position: absolute;
    top: 10%;
    left: 50%;
    width: 800px;
    height: 600px;
    transform: translateX(-50%);
    background: radial-gradient(ellipse at center, var(--accent-glow) 0%, transparent 60%);
    filter: blur(60px);
    opacity: 0.5;
}

.hero-inner {
    position: relative;
    z-index: 1;
}

/* Privacy pill — the ONE emerald element in the hero.
   It is the brand's "safety light." Do not duplicate this treatment. */
.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: 0.5rem 1rem;
    background: var(--privacy-dim);
    border: 1px solid var(--privacy-border);
    border-radius: 999px;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--privacy-hover);
    margin-bottom: var(--space-xl);
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--privacy);
    box-shadow: 0 0 8px var(--privacy);
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse
{
    0%, 100% { opacity: 1; }
    50%      { opacity: 0.5; }
}

.hero-title {
    margin-bottom: var(--space-lg);
}

/* Subtle second-line treatment for "Fully offline." — was a giant emerald
   shout; now reads as a confident statement, not a banner ad. */
.hero-title-sub {
    display: block;
    margin-top: 0.25em;
    font-weight: 500;
    color: var(--text-secondary);
    font-size: 0.55em;
    letter-spacing: -0.01em;
}

.hero-sub {
    max-width: 680px;
    margin: 0 auto var(--space-xl);
    font-size: 1.125rem;
    color: var(--text-secondary);
}

.hero-ctas {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-md);
    margin-bottom: var(--space-xl);
    flex-wrap: wrap;
}

.hero-platforms {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    flex-wrap: wrap;
    color: var(--text-muted);
    font-size: 0.875rem;
}

.platform-pill {
    padding: 0.25rem 0.75rem;
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: 999px;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--text-secondary);
}

/* ==========================================================================
   Trust strip — privacy signal zone. Emerald icons (intentional).
   ========================================================================== */

.trust-strip {
    padding: var(--space-xl) 0;
    background: var(--bg-elevated);
    border-top: 1px solid var(--border-subtle);
    border-bottom: 1px solid var(--border-subtle);
}

.trust-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-xl);
}

.trust-item {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* Emerald: these icons specifically signal privacy guarantees. */
.trust-item svg {
    color: var(--privacy);
    flex-shrink: 0;
}

.trust-item strong {
    color: var(--text-primary);
    font-weight: 600;
}

/* ==========================================================================
   Feature grid
   ========================================================================== */

.feature-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-lg);
}

.feature-card {
    padding: var(--space-xl);
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    transition: border-color 0.2s ease, transform 0.2s ease, background 0.2s ease;
}

.feature-card:hover {
    border-color: var(--accent-border);
    background: var(--bg-card-hover);
    transform: translateY(-2px);
}

.feature-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 56px;
    height: 56px;
    background: var(--accent-dim);
    border: 1px solid var(--accent-border);
    border-radius: var(--radius-md);
    color: var(--accent);
    margin-bottom: var(--space-lg);
}

.feature-card p {
    font-size: 0.95rem;
}

/* ==========================================================================
   Steps (How it works)
   ========================================================================== */

.steps {
    display: grid;
    grid-template-columns: 1fr auto 1fr auto 1fr;
    align-items: center;
    gap: var(--space-md);
    max-width: 1100px;
    margin: 0 auto;
}

.step {
    padding: var(--space-xl);
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    text-align: center;
}

.step-num {
    font-family: var(--font-mono);
    font-size: 0.875rem;
    color: var(--accent);
    margin-bottom: var(--space-md);
    letter-spacing: 0.1em;
}

.step h3 {
    margin-bottom: var(--space-sm);
}

.step p {
    font-size: 0.95rem;
}

.step-arrow {
    color: var(--text-muted);
    display: flex;
    align-items: center;
    justify-content: center;
}

/* ==========================================================================
   Privacy section — emerald used intentionally throughout this zone.
   ========================================================================== */

.privacy-grid {
    display: grid;
    grid-template-columns: 1.1fr 1fr;
    gap: var(--space-3xl);
    align-items: center;
}

.privacy-text p {
    margin-bottom: var(--space-md);
}

.privacy-list {
    list-style: none;
    margin-top: var(--space-lg);
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.privacy-list li {
    display: flex;
    align-items: flex-start;
    gap: var(--space-sm);
    color: var(--text-primary);
    font-size: 0.95rem;
}

/* Emerald: privacy checkmarks. Same semantic as trust strip icons. */
.privacy-list svg {
    color: var(--privacy);
    flex-shrink: 0;
    margin-top: 0.25rem;
}

.privacy-visual {
    display: flex;
    justify-content: center;
}

.diagram {
    width: 100%;
    max-width: 420px;
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
}

.diagram-row {
    text-align: center;
}

.diagram-label {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--text-muted);
    margin-bottom: var(--space-md);
}

.diagram-flow {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    margin-bottom: var(--space-md);
    flex-wrap: wrap;
}

.node {
    padding: 0.5rem 1rem;
    border-radius: var(--radius-sm);
    font-family: var(--font-mono);
    font-size: 0.85rem;
    font-weight: 500;
    border: 1px solid var(--border-soft);
}

.node-you {
    background: var(--bg-elevated);
    color: var(--text-primary);
}

.node-bad {
    background: rgba(239, 68, 68, 0.08);
    color: var(--danger);
    border-color: rgba(239, 68, 68, 0.3);
}

/* Emerald: the privacy diagram's "good" node — same semantic. */
.node-good {
    background: var(--privacy-dim);
    color: var(--privacy-hover);
    border-color: var(--privacy-border);
}

.arrow {
    font-family: var(--font-mono);
    font-size: 1.25rem;
    color: var(--text-muted);
}

.arrow-out {
    color: var(--danger);
}

.arrow-loop {
    color: var(--privacy);
}

.diagram-status {
    font-size: 0.85rem;
    font-weight: 500;
}

.diagram-status-bad {
    color: var(--danger);
}

.diagram-status-good {
    color: var(--privacy);
}

.diagram-divider {
    height: 1px;
    background: var(--border-subtle);
    margin: var(--space-xl) 0;
}

/* ==========================================================================
   Pricing
   ========================================================================== */

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-lg);
    align-items: stretch;
}

.price-card {
    position: relative;
    display: flex;
    flex-direction: column;
    padding: var(--space-xl);
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
}

.price-card-highlight {
    background: var(--bg-card-hover);
    border-color: var(--accent-border);
    box-shadow:
        0 0 0 1px rgba(129, 140, 248, 0.20),
        0 20px 60px rgba(129, 140, 248, 0.08);
}

.price-badge {
    position: absolute;
    top: -12px;
    right: var(--space-xl);
    padding: 0.25rem 0.75rem;
    background: var(--accent-deep);
    color: #ffffff;
    border-radius: 999px;
    font-family: var(--font-mono);
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.price-tier {
    font-size: 1.5rem;
    margin-bottom: var(--space-xs);
}

.price-tagline {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-bottom: var(--space-lg);
}

.price-amount {
    display: flex;
    align-items: baseline;
    gap: 0.25rem;
    margin-bottom: var(--space-lg);
}

.price-currency {
    font-size: 1.25rem;
    color: var(--text-secondary);
    font-weight: 600;
}

.price-number {
    font-size: 3rem;
    font-weight: 800;
    color: var(--text-primary);
    letter-spacing: -0.03em;
    line-height: 1;
}

.price-period {
    font-size: 0.875rem;
    color: var(--text-muted);
    margin-left: var(--space-xs);
}

.price-features {
    list-style: none;
    margin-top: var(--space-lg);
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.price-features li {
    display: flex;
    align-items: flex-start;
    gap: var(--space-sm);
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.price-features svg {
    color: var(--accent);
    flex-shrink: 0;
    margin-top: 0.25rem;
}

.pricing-note {
    text-align: center;
    margin-top: var(--space-xl);
    color: var(--text-muted);
    font-size: 0.9rem;
}

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

.pricing-note a:hover {
    color: var(--accent-hover);
}

/* ==========================================================================
   Download cards
   ========================================================================== */

.download-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-md);
    max-width: 720px;
    margin: 0 auto;
}

.download-card {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-lg);
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    transition: all 0.15s ease;
}

.download-card:hover {
    border-color: var(--accent);
    background: var(--bg-card-hover);
    transform: translateY(-2px);
}

.download-card svg {
    color: var(--text-primary);
    flex-shrink: 0;
}

.download-info {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    flex: 1;
}

.download-platform {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
}

.download-meta {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-muted);
}

.download-arrow {
    font-size: 1.25rem;
    color: var(--accent);
}

.checksum-note {
    text-align: center;
    margin-top: var(--space-xl);
}

.checksum-note code {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-sm);
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* ==========================================================================
   System requirements
   ========================================================================== */

.sys-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-lg);
    max-width: 880px;
    margin: 0 auto;
}

.sys-col {
    padding: var(--space-xl);
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
}

.sys-col-recommended {
    border-color: var(--accent-border);
    background: var(--bg-card-hover);
}

.sys-col h3 {
    margin-bottom: var(--space-lg);
    color: var(--text-primary);
}

.sys-col-recommended h3 {
    color: var(--accent);
}

.sys-col dl {
    display: grid;
    grid-template-columns: 100px 1fr;
    gap: var(--space-sm) var(--space-md);
}

.sys-col dt {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding-top: 0.15rem;
}

.sys-col dd {
    color: var(--text-primary);
    font-size: 0.95rem;
}

/* ==========================================================================
   FAQ
   ========================================================================== */

.faq-list {
    max-width: 820px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.faq-item {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: border-color 0.15s ease;
}

.faq-item[open] {
    border-color: var(--border-medium);
}

.faq-item summary {
    padding: var(--space-md) var(--space-lg);
    cursor: pointer;
    font-weight: 500;
    color: var(--text-primary);
    list-style: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--space-md);
}

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

.faq-item summary::after {
    content: '+';
    font-size: 1.5rem;
    color: var(--accent);
    transition: transform 0.2s ease;
    font-weight: 300;
    flex-shrink: 0;
}

.faq-item[open] summary::after {
    transform: rotate(45deg);
}

.faq-item p {
    padding: 0 var(--space-lg) var(--space-lg);
    color: var(--text-secondary);
    font-size: 0.95rem;
}

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

.faq-item a:hover {
    color: var(--accent-hover);
}

/* ==========================================================================
   CTA section
   ========================================================================== */

.cta-section {
    text-align: center;
    background:
        radial-gradient(ellipse at center, var(--accent-dim) 0%, transparent 60%),
        var(--bg-base);
}

.cta-inner {
    max-width: 720px;
    text-align: center;
}

.cta-inner h2 {
    margin-bottom: var(--space-md);
}

.cta-inner p {
    font-size: 1.125rem;
    margin-bottom: var(--space-xl);
}

/* ==========================================================================
   Footer
   ========================================================================== */

.site-footer {
    padding: var(--space-3xl) 0 var(--space-xl);
    background: var(--bg-elevated);
    border-top: 1px solid var(--border-subtle);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: var(--space-xl);
    margin-bottom: var(--space-xl);
    padding-bottom: var(--space-xl);
    border-bottom: 1px solid var(--border-subtle);
}

.footer-brand .brand {
    margin-bottom: var(--space-md);
}

.footer-tagline {
    color: var(--text-muted);
    font-size: 0.9rem;
    max-width: 280px;
}

.footer-col {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.footer-col a {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

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

.footer-bottom {
    color: var(--text-muted);
    font-size: 0.85rem;
}

/* ==========================================================================
   Responsive
   ========================================================================== */

@media (max-width: 960px) {
    .nav-links {
        display: none;
    }

    .nav-toggle {
        display: flex;
    }

    .mobile-menu:not([hidden]) {
        display: flex;
    }

    .feature-grid,
    .pricing-grid,
    .download-grid {
        grid-template-columns: 1fr;
    }

    .privacy-grid {
        grid-template-columns: 1fr;
        gap: var(--space-2xl);
    }

    .steps {
        grid-template-columns: 1fr;
    }

    .step-arrow {
        transform: rotate(90deg);
    }

    .trust-grid {
        grid-template-columns: 1fr;
        gap: var(--space-md);
    }

    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }

    .footer-brand {
        grid-column: 1 / -1;
    }

    .sys-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 600px) {
    .section {
        padding: var(--space-2xl) 0;
    }

    .hero {
        padding: 7rem 0 var(--space-2xl);
    }

    .hero-ctas {
        flex-direction: column;
        align-items: stretch;
    }

    .hero-ctas .btn {
        width: 100%;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: var(--space-lg);
    }

    .price-card {
        padding: var(--space-lg);
    }
}

/* ==========================================================================
   Accessibility
   ========================================================================== */

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 3px;
    border-radius: 4px;
}

.btn:focus-visible {
    outline-offset: 4px;
}

/* ==========================================================================
   Legal pages (Privacy, Terms, EULA)
   ========================================================================== */

.legal-hero {
    padding: 8rem 0 var(--space-2xl);
    text-align: left;
}

.legal-hero h1 {
    font-family: var(--font-serif);
    font-style: italic;
    font-weight: 500;
    font-size: clamp(2.5rem, 5vw + 1rem, 4rem);
    line-height: 1.05;
    letter-spacing: -0.02em;
    margin-bottom: var(--space-lg);
}

.legal-hero .eyebrow {
    margin-bottom: var(--space-md);
}

.legal-lead {
    font-size: 1.125rem;
    color: var(--text-secondary);
    max-width: 60ch;
    margin-bottom: var(--space-lg);
    line-height: 1.55;
}

.last-updated {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    margin: 0;
}

/* Table of contents bar */
.legal-toc-wrap {
    padding: var(--space-lg) 0;
    background: var(--bg-elevated);
    border-top: 1px solid var(--border-subtle);
    border-bottom: 1px solid var(--border-subtle);
}

.legal-toc {
    display: flex;
    align-items: baseline;
    flex-wrap: wrap;
    gap: 0.5rem 1rem;
}

.legal-toc__label {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--text-muted);
    margin-right: var(--space-sm);
}

.legal-toc__list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-wrap: wrap;
    gap: 0;
}

.legal-toc__list li {
    display: inline-block;
}

.legal-toc__list li::after {
    content: "·";
    color: var(--text-muted);
    margin: 0 0.55rem;
    opacity: 0.6;
}

.legal-toc__list li:last-child::after {
    content: "";
    margin: 0;
}

.legal-toc__list a {
    color: var(--text-secondary);
    font-size: 0.9rem;
    transition: color 0.15s ease;
}

.legal-toc__list a:hover {
    color: var(--accent);
}

/* Prose body for legal pages */
.legal .prose {
    max-width: 760px;
    margin: 0 auto;
}

.prose h2 {
    font-family: var(--font-serif);
    font-style: italic;
    font-weight: 500;
    font-size: 1.75rem;
    line-height: 1.2;
    letter-spacing: -0.01em;
    margin: var(--space-2xl) 0 var(--space-md);
    color: var(--text-primary);
    scroll-margin-top: 80px;
}

.prose h2:first-child {
    margin-top: 0;
}

.prose h3 {
    font-family: var(--font-sans);
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: var(--space-lg) 0 var(--space-sm);
    letter-spacing: -0.005em;
}

.prose p {
    font-size: 1.05rem;
    line-height: 1.7;
    color: var(--text-secondary);
    margin: 0 0 var(--space-md);
}

.prose p strong {
    color: var(--text-primary);
    font-weight: 600;
}

.prose ul {
    margin: 0 0 var(--space-lg);
    padding-left: 1.4rem;
}

.prose ul li {
    font-size: 1.05rem;
    line-height: 1.65;
    margin-bottom: 0.5rem;
    color: var(--text-secondary);
}

.prose ul li strong {
    color: var(--text-primary);
    font-weight: 600;
}

.prose ul li:last-child {
    margin-bottom: 0;
}

.prose a {
    color: var(--accent);
    text-decoration: underline;
    text-underline-offset: 2px;
    text-decoration-thickness: 1px;
}

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

.legal-contact {
    margin-top: var(--space-2xl);
    padding-top: var(--space-lg);
    border-top: 1px solid var(--border-subtle);
    font-size: 0.95rem;
    color: var(--text-muted);
}