/* --- Features --- */
/* Bento Grid Layout Configuration */
.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    margin-top: 4rem;
}

.feature-card.feature-card-compact {
    padding: 1.8rem;
    border-radius: 16px;
}

.feature-card.feature-card-compact::before {
    border-radius: 16px;
}

.feature-card.feature-card-compact h3 {
    font-size: 1.1rem;
    margin-bottom: 0.75rem;
}

.feature-card.feature-card-compact p {
    font-size: 0.9rem;
}

.feature-card {
    background: oklch(0.27 0.035 130 / 0.45);
    backdrop-filter: blur(16px) saturate(120%);
    -webkit-backdrop-filter: blur(16px) saturate(120%);
    padding: 2.5rem;
    border-radius: 24px;
    border: 1px solid rgba(255, 255, 255, 0.08);
    box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.3);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1), box-shadow 0.3s cubic-bezier(0.4, 0, 0.2, 1), border-color 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    border-radius: 24px;
    padding: 1px;
    background: linear-gradient(to bottom right, rgba(255, 255, 255, 0.12), transparent);
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    pointer-events: none;
}

/* Feature cards are static content, not links — no hover lift/glow, so they
   don't read as clickable. */

/* Feature Icon with Inline SVG Wrapper */
.feature-icon-svg {
    display: flex;
    flex-shrink: 0;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    background: oklch(0.68 0.13 150 / 0.12);
    color: var(--accent);
    border-radius: 12px;
    margin-right: 14px;
}

.bento-icon {
    width: 22px;
    height: 22px;
    display: block;
    flex-shrink: 0;
}

.feature-card h3 {
    margin-bottom: 1rem;
    font-size: 1.25rem;
    font-weight: 700;
    display: flex;
    align-items: center;
}

.feature-card p {
    color: var(--text-muted);
    font-size: 0.95rem;
    line-height: 1.6;
}

/* Bento Asymmetric Spanning */
.feature-card.bento-large {
    grid-column: span 2;
    background: linear-gradient(135deg, oklch(0.27 0.035 130 / 0.45) 0%, oklch(0.68 0.13 150 / 0.08) 100%);
    padding: 3rem 3.5rem;
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 3rem;
    align-items: center;
}

.feature-card.bento-large h3 {
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 1rem;
    margin-bottom: 0;
    font-size: 1.25rem;
}

.feature-card.bento-large .feature-icon,
.feature-card.bento-large .feature-icon-svg {
    width: 52px;
    height: 52px;
    border-radius: 14px;
    margin-right: 0;
    flex-shrink: 0;
}

.feature-card.bento-large .bento-icon {
    width: 24px;
    height: 24px;
}

.feature-card.bento-large p {
    font-size: 1rem;
    line-height: 1.7;
    margin: 0;
}

.feature-card.bento-large::after {
    content: '';
    position: absolute;
    top: 0;
    left: 2.5rem;
    right: 2.5rem;
    height: 2px;
    background: linear-gradient(90deg, transparent, oklch(0.68 0.13 150 / 0.4), transparent);
    opacity: 1;
}

@media (max-width: 900px) {
    .features-grid {
        /* Keep the Why KoalaSync grid at either three columns or one column.
           The two-column in-between makes compact cards stretch unevenly. */
        grid-template-columns: 1fr;
        gap: 1.25rem;
    }
    .feature-card.bento-large {
        grid-column: span 1;
        padding: 2.5rem;
        gap: 2rem;
    }
    .feature-card.bento-large h3 {
        font-size: 1.15rem;
    }
}

@media (max-width: 600px) {
    .features-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    .feature-card.bento-large {
        grid-column: span 1;
        display: flex;
        flex-direction: column;
        padding: 1.75rem;
        gap: 1rem;
    }
    .feature-card.bento-large h3 {
        flex-direction: row;
        align-items: center;
        text-align: left;
        gap: 0.75rem;
        margin-bottom: 0;
        font-size: 1.15rem;
    }
    .feature-card.bento-large .feature-icon,
    .feature-card.bento-large .feature-icon-svg {
        width: 40px;
        height: 40px;
        border-radius: 10px;
        margin-right: 0;
    }
    .feature-card.bento-large .bento-icon {
        width: 18px;
        height: 18px;
    }
    .feature-card.bento-large p {
        font-size: 0.9rem;
        line-height: 1.6;
    }
    .feature-card.bento-large::after {
        display: none;
    }
    .feature-card {
        padding: 1.75rem;
    }
    .feature-card h3 {
        font-size: 1.1rem;
    }
    .feature-icon-svg {
        width: 40px;
        height: 40px;
        border-radius: 10px;
        margin-right: 12px;
    }
    .bento-icon {
        width: 18px;
        height: 18px;
    }
}

/* --- How it works --- */
.steps {
    display: flex;
    flex-direction: column;
    gap: 2.75rem;
}

.step {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}

.step:nth-child(even) .step-text {
    order: 2;
}

.step-num {
    font-size: 3.25rem;
    font-weight: 900;
    background: linear-gradient(135deg, oklch(0.68 0.13 150 / 0.75), oklch(0.62 0.14 45 / 0.5));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    line-height: 1;
    margin-bottom: 0.5rem;
    font-family: inherit;
    letter-spacing: 0;
}

html.theme-light .step-num {
    color: oklch(0.36 0.10 145);
    background: none;
    -webkit-text-fill-color: currentColor;
}

.step-text h3 {
    font-size: 1.65rem;
    margin-bottom: 0.75rem;
    font-weight: 850;
    color: var(--text-main);
    letter-spacing: 0;
}

.step-text p {
    color: var(--text-muted);
    font-size: 1rem;
    line-height: 1.55;
}

/* Custom CSS Mockups for step illustrations */
.step-illustration-1, .step-illustration-2, .step-illustration-3 {
    background: radial-gradient(circle at 10% 10%, oklch(0.20 0.04 145), oklch(0.10 0.015 138));
    height: 240px;
    border-radius: 18px;
    border: 1px solid rgba(255, 255, 255, 0.06);
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 20px 45px rgba(0, 0, 0, 0.55), inset 0 1px 0 rgba(255, 255, 255, 0.05);
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1), border-color 0.4s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

@media (max-width: 900px) {
    #how-it-works {
        padding: 3.5rem 0;
    }

    .steps {
        gap: 2.75rem;
    }

    .step {
        grid-template-columns: minmax(0, 1fr);
        gap: 1.1rem;
        text-align: left;
    }

    #how-it-works .step .step-text {
        order: 1;
    }

    #how-it-works .step-illustration-1,
    #how-it-works .step-illustration-2,
    #how-it-works .step-illustration-3 {
        order: 2;
        height: 220px;
    }

    .step-num {
        font-size: 2.5rem;
    }

    .step-text h3 {
        font-size: 1.45rem;
    }
}

/* Step illustrations are screenshots, not controls — no hover lift/scale. */

/* ==========================================================================
   Step 1 Illustration: Browser & Installed Success Popup
   ========================================================================== */
.illus-browser-container {
    width: 90%;
    height: 80%;
    background: oklch(0.11 0.015 138);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.6);
    display: flex;
    flex-direction: column;
}

.illus-browser-header {
    background: oklch(0.20 0.025 140 / 0.8);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    padding: 0.6rem 0.8rem;
    display: flex;
    align-items: center;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.illus-browser-dots {
    display: flex;
    gap: 6px;
    margin-right: 1.5rem;
}

.illus-browser-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    opacity: 0.6;
}
.illus-browser-dot:nth-child(1) { background: oklch(0.55 0.15 25); }
.illus-browser-dot:nth-child(2) { background: oklch(0.68 0.14 45); }
.illus-browser-dot:nth-child(3) { background: oklch(0.68 0.13 150); }

.illus-browser-address-bar {
    background: oklch(0.13 0.02 138);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 6px;
    color: var(--text-muted);
    font-size: 0.68rem;
    padding: 3px 12px;
    flex-grow: 1;
    max-width: 60%;
    text-align: center;
    font-family: monospace;
    letter-spacing: 0.2px;
}

.illus-browser-address-bar .url-protocol {
    color: oklch(0.68 0.13 150);
    font-weight: 600;
}

.illus-browser-toolbar {
    display: flex;
    margin-left: auto;
}

.illus-extension-btn {
    width: 22px;
    height: 22px;
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: opacity 0.3s, box-shadow 0.3s;
}

.illus-extension-btn.active {
    background: oklch(0.68 0.13 150 / 0.2);
    border: 1px solid var(--accent);
    box-shadow: 0 0 10px oklch(0.68 0.13 150 / 0.4);
    animation: active-pulse 2s infinite alternate;
}

@keyframes active-pulse {
    0% { transform: scale(1); box-shadow: 0 0 5px oklch(0.68 0.13 150 / 0.4); }
    100% { transform: scale(1.08); box-shadow: 0 0 12px oklch(0.68 0.13 150 / 0.7); }
}

.illus-browser-content {
    flex-grow: 1;
    padding: 1rem;
    position: relative;
    display: flex;
    align-items: flex-start;
}

.illus-store-card {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.04);
    border-radius: 12px;
    padding: 0.8rem;
    width: 65%;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.illus-store-card-header {
    display: flex;
    align-items: center;
    gap: 8px;
}

.illus-large-logo {
    width: 30px;
    height: 30px;
    object-fit: contain;
    border-radius: 6px;
    box-shadow: 0 0 10px oklch(0.68 0.13 150 / 0.2);
}

.illus-store-info {
    display: flex;
    flex-direction: column;
}

.illus-store-title {
    font-size: 0.88rem;
    font-weight: 800;
    color: var(--text);
    line-height: 1.1;
}

.illus-store-desc {
    font-size: 0.58rem;
    color: var(--text-muted);
    line-height: 1.2;
    margin-top: 2px;
}

.illus-store-buttons {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.illus-store-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 5px 8px;
    border-radius: 8px;
    font-size: 0.58rem;
    font-weight: 700;
    color: white;
    border: 1px solid rgba(255, 255, 255, 0.05);
    background: rgba(255, 255, 255, 0.03);
    box-shadow: 0 2px 5px rgba(0,0,0,0.2);
    cursor: default;
    transition: opacity 0.2s, transform 0.2s;
}

.illus-store-btn img {
    width: 11px;
    height: 11px;
    display: block;
}

.illus-store-btn.chrome {
    border-color: oklch(0.68 0.13 150 / 0.25);
    background: oklch(0.68 0.13 150 / 0.08);
    box-shadow: 0 0 10px oklch(0.68 0.13 150 / 0.05);
}

.illus-store-btn.firefox {
    border-color: oklch(0.62 0.14 45 / 0.25);
    background: oklch(0.62 0.14 45 / 0.08);
    box-shadow: 0 0 10px oklch(0.62 0.14 45 / 0.05);
}

.install-breathe {
    animation: install-breathe 2.5s ease-in-out infinite;
    z-index: 2;
    position: relative;
}

@keyframes install-breathe {
    0%, 100% {
        transform: scale(1);
        box-shadow: 0 0 15px oklch(0.68 0.13 150 / 0.2);
    }
    50% {
        transform: scale(1.05);
        box-shadow: 0 0 25px oklch(0.68 0.13 150 / 0.5);
    }
}

.install-breathe.firefox,
.btn-firefox.install-breathe {
    animation-name: install-breathe-ff;
}

@keyframes install-breathe-ff {
    0%, 100% {
        transform: scale(1);
        box-shadow: 0 0 15px oklch(0.62 0.14 45 / 0.2);
    }
    50% {
        transform: scale(1.05);
        box-shadow: 0 0 25px oklch(0.62 0.14 45 / 0.5);
    }
}

/* Glassmorphic Dropping Success Card */
.illus-extension-popup {
    position: absolute;
    top: 0.6rem;
    right: 0.6rem;
    width: 145px;
    background: oklch(0.20 0.025 140 / 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid oklch(0.68 0.13 150 / 0.25);
    border-radius: 12px;
    padding: 0.6rem 0.8rem;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.55), 0 0 15px oklch(0.68 0.13 150 / 0.15);
    animation: popup-float 4s ease-in-out infinite;
    z-index: 5;
}

@keyframes popup-float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-4px); }
}

.illus-extension-popup .popup-title {
    display: flex;
    align-items: center;
    gap: 5px;
    font-size: 0.72rem;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 6px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    padding-bottom: 4px;
}

.illus-extension-popup .popup-title img {
    width: 12px;
    height: 12px;
}

.illus-extension-popup .popup-status {
    margin-bottom: 4px;
}

.status-badge-success {
    background: oklch(0.68 0.13 150 / 0.12);
    color: oklch(0.68 0.13 150);
    font-size: 0.6rem;
    font-weight: 700;
    padding: 2px 6px;
    border-radius: 4px;
    border: 1px solid oklch(0.68 0.13 150 / 0.2);
    display: inline-flex;
    align-items: center;
    gap: 3px;
    animation: status-glow 2s infinite alternate;
}

@keyframes status-glow {
    0% { box-shadow: 0 0 0 oklch(0.68 0.13 150 / 0); }
    100% { box-shadow: 0 0 6px oklch(0.68 0.13 150 / 0.3); }
}

.illus-extension-popup .popup-quick-start {
    font-size: 0.55rem;
    color: var(--text-muted);
    font-weight: 500;
    line-height: 1.2;
}


/* ==========================================================================
   Step 2 Illustration: Highly Realistic Extension Popup (Create Room View)
   ========================================================================== */
.illus-popup-card {
    width: 220px;
    background: oklch(0.20 0.025 140 / 0.85);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 16px;
    padding: 0.8rem;
    box-shadow: 0 18px 40px rgba(0, 0, 0, 0.6), inset 0 1px 0 rgba(255, 255, 255, 0.1);
    display: flex;
    flex-direction: column;
    gap: 0.55rem;
    animation: popup-float 4s ease-in-out infinite;
    animation-delay: -1s;
}

.illus-popup-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    padding-bottom: 8px;
}

.illus-popup-brand {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.82rem; /* Scaled up font */
    font-weight: 800;
    letter-spacing: -0.2px;
}

.illus-popup-version {
    font-size: 0.58rem;
    color: var(--text-muted);
}

.illus-popup-tabs {
    display: flex;
    gap: 4px;
    background: oklch(0.12 0.015 135 / 0.4);
    padding: 3px;
    border-radius: 8px;
    border: 1px solid rgba(255, 255, 255, 0.03);
}

.illus-popup-tab {
    flex: 1;
    text-align: center;
    font-size: 0.62rem; /* Scaled up font */
    padding: 4px 0;
    border-radius: 6px;
    color: var(--text-muted);
    font-weight: 600;
}

.illus-popup-tab.active {
    background: var(--card);
    color: var(--accent);
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
}

.illus-popup-body {
    display: flex;
    flex-direction: column;
    gap: 0.55rem;
    position: relative;
}

.illus-popup-btn {
    background: linear-gradient(135deg, var(--accent-green), var(--accent-terracotta));
    border-radius: 8px;
    padding: 7px 9px;
    color: var(--text-on-green);
    font-weight: 700;
    font-size: 0.68rem;
    text-align: center;
    box-shadow: 0 4px 12px oklch(0.68 0.13 150 / 0.3);
    position: relative;
    overflow: hidden;
    cursor: default;
    /* Static: the constant scale/shadow pulse pulled the eye away from the
       copy while reading the steps (step 3 keeps the lively animation). */
}

/* Shine sweep removed — kept the element off-canvas so the button reads as a
   calm static control rather than a repeatedly glinting one. */
.illus-btn-shine {
    display: none;
}

.illus-collapsed-details {
    background: oklch(0.12 0.015 135 / 0.4);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 8px;
    padding: 6px 11px;
    font-size: 0.54rem;
    color: var(--text-muted);
    font-weight: 700;
    text-transform: uppercase;
    display: flex;
    align-items: center;
    gap: 6px;
    letter-spacing: 0.2px;
}

.details-arrow {
    font-size: 0.48rem;
    color: var(--text-muted);
    opacity: 0.7;
}

/* Floating Success Badge */
.illus-floating-success {
    position: absolute;
    /* Fully below the card so the toast never straddles its border */
    bottom: -2.4rem;
    left: 50%;
    transform: translateX(-50%);
    background: oklch(0.12 0.015 135 / 0.92);
    border: 1px solid oklch(0.68 0.13 150 / 0.35);
    border-radius: 20px;
    padding: 3px 10px;
    display: flex;
    align-items: center;
    gap: 4px;
    box-shadow: 0 6px 14px rgba(0, 0, 0, 0.45), 0 0 12px oklch(0.68 0.13 150 / 0.18);
    /* Shown statically instead of fading in and out on a loop — the toast now
       reads as part of the popup state rather than a flashing notification. */
    white-space: nowrap;
    z-index: 10;
}

.illus-floating-success .success-icon {
    font-size: 0.65rem;
}

.illus-floating-success span[lang] {
    font-size: 0.58rem;
    color: oklch(0.68 0.13 150);
    font-weight: 700;
}


/* ==========================================================================
   Step 3 Illustration: Dual Screen Theater Sync Setup
   ========================================================================= */
.illus-sync-theater {
    width: 95%;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    gap: 0.6rem;
}

.illus-player-card {
    width: 145px;
    background: oklch(0.20 0.025 140 / 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 12px;
    padding: 6px;
    box-shadow: 0 12px 30px rgba(0,0,0,0.5);
    display: flex;
    flex-direction: column;
    gap: 4px;
    position: relative;
    z-index: 2;
}

.illus-player-card.player-a {
    animation: popup-float 4s ease-in-out infinite;
    animation-delay: -2s;
}

.illus-player-card.player-b {
    animation: popup-float 4s ease-in-out infinite;
    animation-delay: -3s;
}

.player-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.55rem;
}

.player-user {
    font-weight: 700;
    color: var(--text);
}

.player-badge {
    font-size: 0.42rem;
    font-weight: 800;
    padding: 1px 3px;
    border-radius: 3px;
}

.player-badge.active {
    background: oklch(0.68 0.13 150 / 0.15);
    color: oklch(0.68 0.13 150);
    border: 1px solid oklch(0.68 0.13 150 / 0.25);
}

.player-video-canvas {
    height: 70px;
    border-radius: 8px;
    /* Sky behind the film SVG — --demo-* flips day/night with the theme
       (defined on .illus-sync-theater in hero.css) */
    background: linear-gradient(160deg, var(--demo-sky-top) 0%, var(--demo-sky-mid) 52%, var(--demo-sky-bottom) 100%);
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid rgba(255, 255, 255, 0.02);
}

.player-video-overlay {
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    background: linear-gradient(to bottom, transparent, oklch(0.68 0.13 150 / 0.15), transparent);
    background-size: 100% 200%;
    animation: playerScrollScanline 3s linear infinite;
}

@keyframes playerScrollScanline {
    0% { background-position: 0% 0%; }
    100% { background-position: 0% 200%; }
}

.player-play-pulse {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: oklch(0.68 0.13 150 / 0.85);
    color: var(--text-on-green);
    font-size: 0.65rem;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 0 10px oklch(0.68 0.13 150 / 0.5);
    z-index: 3;
    animation: play-pulse 2s infinite alternate;
}

@keyframes play-pulse {
    0% { transform: scale(1); box-shadow: 0 0 6px oklch(0.68 0.13 150 / 0.4); }
    100% { transform: scale(1.15); box-shadow: 0 0 15px oklch(0.68 0.13 150 / 0.8); }
}

.player-controls {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 2px 2px 0 2px;
}

.control-btn {
    font-size: 0.58rem;
    color: var(--accent);
}

.player-timeline {
    flex-grow: 1;
    height: 3px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 2px;
    position: relative;
}

.timeline-fill {
    position: absolute;
    top: 0; left: 0;
    height: 100%;
    background: var(--accent);
    border-radius: 2px;
    width: 60%;
    animation: theater-grow 6s infinite linear;
}

.timeline-knob {
    position: absolute;
    top: -2px;
    left: 60%;
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: white;
    box-shadow: 0 0 4px rgba(0,0,0,0.5);
    transform: translateX(-50%);
    animation: theater-knob-grow 6s infinite linear;
}

@keyframes theater-grow {
    0% { width: 0%; }
    100% { width: 100%; }
}

@keyframes theater-knob-grow {
    0% { left: 0%; }
    100% { left: 100%; }
}

.control-time {
    font-size: 0.5rem;
    color: var(--text-muted);
    font-family: monospace;
}

/* Glowing Connection Sync Bridge */
.illus-sync-bridge {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 6px;
    position: relative;
    z-index: 1;
}

.illus-sync-bridge .sync-line {
    width: 100%;
    height: 2px;
    background: rgba(255,255,255,0.06);
    position: relative;
    overflow: hidden;
}

.illus-sync-bridge .sync-beam {
    position: absolute;
    top: 0;
    left: -100%;
    width: 50px;
    height: 100%;
    background: linear-gradient(90deg, transparent, var(--accent), var(--success), transparent);
    animation: sync-flow 2.5s infinite linear;
}

@keyframes sync-flow {
    0% { left: -100%; }
    100% { left: 100%; }
}

.sync-status-badge {
    background: oklch(0.68 0.13 150 / 0.12);
    border: 1px solid oklch(0.68 0.13 150 / 0.25);
    color: oklch(0.68 0.13 150);
    font-size: 0.5rem;
    font-weight: 800;
    letter-spacing: 0.5px;
    padding: 2px 6px;
    border-radius: 6px;
    white-space: nowrap;
    animation: active-pulse-green 2s infinite alternate;
}

@keyframes active-pulse-green {
    0% { box-shadow: 0 0 3px oklch(0.68 0.13 150 / 0.1); }
    100% { box-shadow: 0 0 8px oklch(0.68 0.13 150 / 0.4); }
}

/* Getting Started uses real theme surfaces. Only the video canvases remain
   dark in light mode, because they represent video content rather than UI. */
html.theme-light .step-illustration-1,
html.theme-light .step-illustration-2,
html.theme-light .step-illustration-3 {
    color: var(--text);
    background:
        radial-gradient(circle at 15% 10%, oklch(0.995 0.006 100), transparent 52%),
        linear-gradient(145deg, oklch(0.965 0.014 105), oklch(0.925 0.025 115));
    border-color: oklch(0.28 0.035 140 / 0.13);
    box-shadow:
        0 18px 38px oklch(0.20 0.025 140 / 0.12),
        inset 0 1px 0 rgba(255, 255, 255, 0.9);
}

html.theme-light .step-illustration-1 .illus-popup-card,
html.theme-light .step-illustration-2 .illus-popup-card,
html.theme-light .step-illustration-3 .illus-player-card {
    --bg: oklch(0.965 0.014 105) !important;
    --card: #ffffff !important;
    --accent: oklch(0.56 0.13 150) !important;
    --accent-glow: oklch(0.56 0.13 150 / 0.20) !important;
    --text: oklch(0.20 0.025 140) !important;
    --text-muted: oklch(0.43 0.03 135) !important;
    --success: oklch(0.56 0.13 150) !important;
    --glass-border: oklch(0.28 0.035 140 / 0.10) !important;
}

html.theme-light .illus-popup-card,
html.theme-light .illus-player-card {
    background: rgba(255, 255, 255, 0.91);
    border-color: oklch(0.28 0.035 140 / 0.14);
    box-shadow:
        0 14px 30px oklch(0.20 0.025 140 / 0.16),
        inset 0 1px 0 #ffffff;
}

html.theme-light .illus-popup-header {
    border-bottom-color: oklch(0.28 0.035 140 / 0.10);
}

html.theme-light .illus-popup-brand,
html.theme-light .player-user {
    color: var(--text);
}

html.theme-light .illus-popup-tabs,
html.theme-light .illus-collapsed-details {
    background: oklch(0.92 0.02 112 / 0.72);
    border-color: oklch(0.28 0.035 140 / 0.10);
}

html.theme-light .illus-popup-tab.active {
    color: oklch(0.36 0.105 150);
    background: #ffffff;
    border: 1px solid oklch(0.56 0.13 150 / 0.18);
    box-shadow: 0 2px 7px oklch(0.20 0.025 140 / 0.10);
}

html.theme-light .popup-form-label,
html.theme-light .illus-popup-version,
html.theme-light .illus-popup-tab,
html.theme-light .illus-collapsed-details,
html.theme-light .details-arrow,
html.theme-light .control-time {
    color: var(--text-muted);
}

html.theme-light .popup-select-mock {
    color: var(--text);
    background: #ffffff;
    border-color: oklch(0.28 0.035 140 / 0.16);
    box-shadow: inset 0 1px 2px oklch(0.20 0.025 140 / 0.06);
}

html.theme-light .illus-floating-success {
    color: var(--text);
    background: rgba(255, 255, 255, 0.96);
    border-color: oklch(0.56 0.13 150 / 0.30);
    box-shadow:
        0 7px 16px oklch(0.20 0.025 140 / 0.14),
        0 0 12px oklch(0.56 0.13 150 / 0.10);
}

html.theme-light .player-header,
html.theme-light .player-controls {
    color: var(--text);
}

html.theme-light .player-video-canvas {
    border-color: oklch(0.28 0.035 140 / 0.18);
    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.04);
}

html.theme-light .player-timeline,
html.theme-light .illus-sync-bridge .sync-line {
    background: oklch(0.28 0.035 140 / 0.14);
}

html.theme-light .timeline-knob {
    background: #ffffff;
    border: 1px solid oklch(0.56 0.13 150 / 0.45);
    box-shadow: 0 1px 4px oklch(0.20 0.025 140 / 0.22);
}

html.theme-light .sync-status-badge,
html.theme-light .player-badge.active {
    color: oklch(0.36 0.105 150);
    background: oklch(0.60 0.12 150 / 0.12);
    border-color: oklch(0.56 0.13 150 / 0.26);
}

/* --- Self Hosters Terminal --- */
.terminal-container {
    max-width: 850px;
    margin: 3rem auto 0 auto;
    background: oklch(0.20 0.025 140);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 20px 45px rgba(0,0,0,0.5);
    text-align: left;
}

.terminal-header {
    background: oklch(0.27 0.035 130);
    padding: 0.85rem 1.25rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid rgba(255,255,255,0.06);
}

.terminal-dots {
    display: flex;
    gap: 6px;
}

.terminal-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
}

.terminal-dot.red { background: oklch(0.55 0.15 25); }
.terminal-dot.yellow { background: oklch(0.68 0.14 45); }
.terminal-dot.green { background: oklch(0.68 0.13 150); }

.terminal-tabs {
    display: flex;
    gap: 0.5rem;
}

.terminal-tab-btn {
    background: none;
    border: none;
    color: var(--text-muted);
    font-weight: 600;
    font-size: 0.8rem;
    padding: 0.35rem 0.75rem;
    border-radius: 6px;
    cursor: pointer;
    transition: color 0.2s, background-color 0.2s;
}

.terminal-tab-btn:hover {
    color: var(--text);
    background: rgba(255, 255, 255, 0.03);
}

.terminal-tab-btn.active {
    color: var(--accent);
    background: oklch(0.68 0.13 150 / 0.1);
    border: 1px solid oklch(0.68 0.13 150 / 0.2);
}

.terminal-body {
    position: relative;
    padding: 1.5rem;
}

.terminal-pane {
    display: none;
    margin: 0;
}

.terminal-pane.active {
    display: block;
}

.terminal-pane pre {
    margin: 0;
    overflow-x: auto;
}

.terminal-pane code {
    font-family: Consolas, Monaco, "Andale Mono", "Ubuntu Mono", monospace;
    font-size: 0.85rem;
    line-height: 1.6;
    color: oklch(0.88 0.015 90);
}

/* Syntax Highlighting */
.t-comment { color: oklch(0.55 0.02 110); font-style: italic; }
.t-key { color: oklch(0.72 0.12 45); }
.t-val { color: oklch(0.75 0.10 150); }
.t-str { color: oklch(0.80 0.12 155); }
.t-num { color: oklch(0.75 0.12 50); }

.terminal-copy-btn {
    position: absolute;
    top: 1rem;
    right: 1.5rem;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.08);
    color: var(--text-muted);
    padding: 0.35rem 0.75rem;
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: 6px;
    cursor: pointer;
    transition: background-color 0.2s, color 0.2s, opacity 0.2s;
    display: flex;
    align-items: center;
    gap: 0.3rem;
}

.terminal-copy-btn:hover {
    background: rgba(255, 255, 255, 0.08);
    color: var(--text);
    border-color: rgba(255, 255, 255, 0.15);
}

.terminal-copy-btn:active {
    transform: scale(0.97);
}

/* --- Footer --- */
footer {
    padding: 4rem 0;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    text-align: center;
    color: var(--text-muted);
}

html.theme-light footer {
    border-top: 1px solid rgba(0, 0, 0, 0.05);
}

footer a {
    color: var(--text-muted);
    text-decoration: none;
    transition: color 0.2s ease;
}

footer a:hover {
    color: var(--text);
}

.footer-ram {
    font-size: 0.72rem;
    margin-bottom: 0.8rem;
    line-height: 1.5;
    color: oklch(0.72 0.015 90);
}

html.theme-light .footer-ram {
    color: var(--text-muted);
}

.footer-copyright {
    font-size: 0.85rem;
    margin-bottom: 1.5rem;
    color: var(--text);
}

.footer-disclaimer {
    font-size: 0.72rem;
    margin-bottom: 0.8rem;
    max-width: 650px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.5;
}

.footer-links {
    margin-top: 1.5rem;
    font-size: 0.8rem;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.footer-mastodon-link {
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.footer-support-btn {
    color: #fff !important;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: #b94642;
    border: 1px solid rgba(255, 255, 255, 0.18);
    border-radius: 999px;
    padding: 3px 9px;
    font-size: 0.72rem;
    font-weight: 700;
    line-height: 1;
    transition: background-color 0.2s ease, transform 0.2s ease, border-color 0.2s ease;
}

.footer-support-btn:hover {
    background: #d9534f;
    border-color: rgba(255, 255, 255, 0.35);
    transform: translateY(-1px);
}

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


/* --- Animations --- */
[data-reveal] {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s cubic-bezier(0.4, 0, 0.2, 1), transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

[data-reveal].revealed {
    opacity: 1;
    transform: translateY(0);
}

html.theme-light .hero-demo-scene .demo-user-a,
html.theme-light .hero-demo-scene .demo-user-b {
    color: oklch(0.36 0.105 150);
    background: oklch(0.60 0.12 150 / 0.13);
}

html.theme-light .hero-demo-scene .extension-mockup {
    --bg: oklch(0.935 0.018 110) !important;
    --card: oklch(0.995 0.006 100) !important;
    --accent: oklch(0.56 0.13 150) !important;
    --accent-glow: oklch(0.56 0.13 150 / 0.22) !important;
    --text: oklch(0.21 0.03 140) !important;
    --text-muted: oklch(0.43 0.03 135) !important;
    --success: oklch(0.56 0.13 150) !important;
    --error: oklch(0.57 0.17 25) !important;
    --glass-border: oklch(0.28 0.035 140 / 0.10) !important;
    background: oklch(0.935 0.018 110) !important;
    border-color: oklch(0.28 0.035 140 / 0.12);
    box-shadow:
        0 20px 42px oklch(0.20 0.025 140 / 0.16),
        0 0 26px oklch(0.82 0.10 85 / 0.12);
}

html.theme-light .hero-demo-scene .mock-tabs,
html.theme-light .hero-demo-scene .mock-card,
html.theme-light .hero-demo-scene .mock-input {
    background: oklch(0.995 0.006 100);
    border-color: oklch(0.28 0.035 140 / 0.14);
    color: oklch(0.21 0.03 140);
}

html.theme-light .hero-demo-scene .mock-peer-item {
    background: oklch(0.28 0.035 140 / 0.035);
    border-color: oklch(0.28 0.035 140 / 0.09);
}

html.theme-light .hero-demo-scene .mock-joined-room,
html.theme-light .hero-demo-scene .mock-status-pill {
    background: oklch(0.56 0.13 150 / 0.10);
    border-color: oklch(0.56 0.13 150 / 0.24);
}

html.theme-light .hero-demo-scene .mock-close-btn:hover {
    color: oklch(0.21 0.03 140);
    background: oklch(0.28 0.035 140 / 0.08);
}

/* A direct hash destination is content, not an entrance animation. Keep it
   readable from the first paint even before app.js has initialized. */
section:target [data-reveal],
section:target[data-reveal] {
    opacity: 1;
    transform: translateY(0);
}