/**
 * Qubibyte Quadra product page — theme-aware styles.
 * Requires html[data-theme] from /js/theme-boot-inline.js
 */

/* ── Theme tokens ─────────────────────────────────────────────────── */
:root,
html[data-theme="dark"] {
    --quadra-hero-gradient: linear-gradient(135deg, #0687c9 0%, #554a9e 100%);
    --quadra-cta-gradient: linear-gradient(135deg, #554a9e 0%, #0687c9 100%);
    --quadra-page-bg: #0a0a1a;
    --quadra-card-bg: #141428;
    --quadra-card-border: rgba(255, 255, 255, 0.06);
    --quadra-card-shadow: rgba(0, 0, 0, 0.3);
    --quadra-card-shadow-hover: rgba(0, 0, 0, 0.5);
    --quadra-heading: #ffffff;
    --quadra-body-text: #e0e0e0;
    --quadra-muted: #b0b0b0;
    --quadra-hero-text: #ffffff;
    --quadra-accent-primary: #0687c9;
    --quadra-accent-secondary: #ab6faf;
    --quadra-spec-bg: rgba(6, 135, 201, 0.06);
    --quadra-spec-border: rgba(6, 135, 201, 0.3);
    --quadra-spec-hover-bg: rgba(6, 135, 201, 0.2);
    --quadra-spec-hover-shadow: rgba(6, 135, 201, 0.2);
    --quadra-spec-value: #0687c9;
    --quadra-diagram-bg: linear-gradient(135deg, #0a0a1a 0%, #141428 100%);
    --quadra-sample-bg: linear-gradient(135deg, rgba(6, 135, 201, 0.1) 0%, rgba(171, 111, 175, 0.1) 100%);
    --quadra-sample-hover-bg: linear-gradient(135deg, rgba(6, 135, 201, 0.2) 0%, rgba(171, 111, 175, 0.2) 100%);
    --quadra-sample-text-gradient: linear-gradient(135deg, #0687c9 0%, #ab6faf 100%);
    --quadra-qubit-gradient: linear-gradient(135deg, #0687c9 0%, #ab6faf 100%);
    --quadra-qubit-shadow: rgba(6, 135, 201, 0.4);
    --quadra-feature-border: rgba(255, 255, 255, 0.1);
    --quadra-badge-bg: rgba(255, 255, 255, 0.2);
    --quadra-btn-bg: #ffffff;
    --quadra-btn-text: #554a9e;
    --quadra-footer-bg: #060614;
    --quadra-footer-border: rgba(255, 255, 255, 0.06);
    --quadra-footer-text: #64748b;
}

html[data-theme="light"] {
    --quadra-hero-gradient: linear-gradient(135deg, #0284c7 0%, #6366f1 100%);
    --quadra-cta-gradient: linear-gradient(135deg, #6366f1 0%, #0284c7 100%);
    --quadra-page-bg: #f0f0f5;
    --quadra-card-bg: #ffffff;
    --quadra-card-border: rgba(0, 0, 0, 0.08);
    --quadra-card-shadow: rgba(0, 0, 0, 0.06);
    --quadra-card-shadow-hover: rgba(0, 0, 0, 0.12);
    --quadra-heading: #1e293b;
    --quadra-body-text: #334155;
    --quadra-muted: #64748b;
    --quadra-hero-text: #ffffff;
    --quadra-accent-primary: #0369a1;
    --quadra-accent-secondary: #7c3aed;
    --quadra-spec-bg: rgba(6, 135, 201, 0.06);
    --quadra-spec-border: rgba(6, 135, 201, 0.2);
    --quadra-spec-hover-bg: rgba(6, 135, 201, 0.12);
    --quadra-spec-hover-shadow: rgba(6, 135, 201, 0.15);
    --quadra-spec-value: #0369a1;
    --quadra-diagram-bg: linear-gradient(135deg, #e8eef4 0%, #ffffff 100%);
    --quadra-sample-bg: linear-gradient(135deg, rgba(6, 135, 201, 0.08) 0%, rgba(124, 58, 237, 0.08) 100%);
    --quadra-sample-hover-bg: linear-gradient(135deg, rgba(6, 135, 201, 0.14) 0%, rgba(124, 58, 237, 0.12) 100%);
    --quadra-sample-text-gradient: linear-gradient(135deg, #0369a1 0%, #7c3aed 100%);
    --quadra-qubit-gradient: linear-gradient(135deg, #0284c7 0%, #8b5cf6 100%);
    --quadra-qubit-shadow: rgba(6, 135, 201, 0.25);
    --quadra-feature-border: rgba(0, 0, 0, 0.08);
    --quadra-badge-bg: rgba(255, 255, 255, 0.25);
    --quadra-btn-bg: #ffffff;
    --quadra-btn-text: #4f46e5;
    --quadra-footer-bg: #e8eef4;
    --quadra-footer-border: rgba(0, 0, 0, 0.08);
    --quadra-footer-text: #64748b;
}

html[data-theme="midnight"] {
    --quadra-hero-gradient: linear-gradient(135deg, #0ea5e9 0%, #3b82f6 100%);
    --quadra-cta-gradient: linear-gradient(135deg, #3b82f6 0%, #0ea5e9 100%);
    --quadra-page-bg: #0f172a;
    --quadra-card-bg: #1e293b;
    --quadra-card-border: rgba(255, 255, 255, 0.08);
    --quadra-card-shadow: rgba(0, 0, 0, 0.25);
    --quadra-card-shadow-hover: rgba(0, 0, 0, 0.4);
    --quadra-heading: #f1f5f9;
    --quadra-body-text: #cbd5e1;
    --quadra-muted: #94a3b8;
    --quadra-hero-text: #ffffff;
    --quadra-accent-primary: #38bdf8;
    --quadra-accent-secondary: #818cf8;
    --quadra-spec-bg: rgba(56, 189, 248, 0.08);
    --quadra-spec-border: rgba(56, 189, 248, 0.25);
    --quadra-spec-hover-bg: rgba(56, 189, 248, 0.18);
    --quadra-spec-hover-shadow: rgba(56, 189, 248, 0.2);
    --quadra-spec-value: #38bdf8;
    --quadra-diagram-bg: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
    --quadra-sample-bg: linear-gradient(135deg, rgba(56, 189, 248, 0.1) 0%, rgba(129, 140, 248, 0.1) 100%);
    --quadra-sample-hover-bg: linear-gradient(135deg, rgba(56, 189, 248, 0.18) 0%, rgba(129, 140, 248, 0.16) 100%);
    --quadra-sample-text-gradient: linear-gradient(135deg, #38bdf8 0%, #818cf8 100%);
    --quadra-qubit-gradient: linear-gradient(135deg, #0ea5e9 0%, #818cf8 100%);
    --quadra-qubit-shadow: rgba(56, 189, 248, 0.35);
    --quadra-feature-border: rgba(255, 255, 255, 0.08);
    --quadra-badge-bg: rgba(255, 255, 255, 0.18);
    --quadra-btn-bg: #ffffff;
    --quadra-btn-text: #1d4ed8;
    --quadra-footer-bg: #0c1222;
    --quadra-footer-border: rgba(255, 255, 255, 0.06);
    --quadra-footer-text: #94a3b8;
}

html[data-theme="quantum"] {
    --quadra-hero-gradient: linear-gradient(135deg, #a855f7 0%, #d946ef 100%);
    --quadra-cta-gradient: linear-gradient(135deg, #d946ef 0%, #a855f7 100%);
    --quadra-page-bg: #1a0a25;
    --quadra-card-bg: #2d1f3d;
    --quadra-card-border: rgba(255, 255, 255, 0.1);
    --quadra-card-shadow: rgba(0, 0, 0, 0.35);
    --quadra-card-shadow-hover: rgba(0, 0, 0, 0.5);
    --quadra-heading: #f5f0ff;
    --quadra-body-text: rgba(245, 240, 255, 0.88);
    --quadra-muted: rgba(245, 240, 255, 0.55);
    --quadra-hero-text: #ffffff;
    --quadra-accent-primary: #e879f9;
    --quadra-accent-secondary: #c084fc;
    --quadra-spec-bg: rgba(217, 70, 239, 0.1);
    --quadra-spec-border: rgba(217, 70, 239, 0.3);
    --quadra-spec-hover-bg: rgba(217, 70, 239, 0.2);
    --quadra-spec-hover-shadow: rgba(217, 70, 239, 0.25);
    --quadra-spec-value: #e879f9;
    --quadra-diagram-bg: linear-gradient(135deg, #1a0a25 0%, #2d1f3d 100%);
    --quadra-sample-bg: linear-gradient(135deg, rgba(217, 70, 239, 0.12) 0%, rgba(168, 85, 247, 0.12) 100%);
    --quadra-sample-hover-bg: linear-gradient(135deg, rgba(217, 70, 239, 0.22) 0%, rgba(168, 85, 247, 0.18) 100%);
    --quadra-sample-text-gradient: linear-gradient(135deg, #e879f9 0%, #c084fc 100%);
    --quadra-qubit-gradient: linear-gradient(135deg, #d946ef 0%, #a855f7 100%);
    --quadra-qubit-shadow: rgba(217, 70, 239, 0.4);
    --quadra-feature-border: rgba(255, 255, 255, 0.08);
    --quadra-badge-bg: rgba(255, 255, 255, 0.18);
    --quadra-btn-bg: #ffffff;
    --quadra-btn-text: #7e22ce;
    --quadra-footer-bg: #12081a;
    --quadra-footer-border: rgba(255, 255, 255, 0.08);
    --quadra-footer-text: rgba(245, 240, 255, 0.45);
}

/* ── Page layout ──────────────────────────────────────────────────── */
body.quadra-product-page {
    background: var(--quadra-page-bg) !important;
}

.product-hero {
    background: var(--quadra-hero-gradient);
    color: var(--quadra-hero-text);
    padding: 120px 0 80px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.product-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(circle at 20% 30%, rgba(255, 255, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 70%, rgba(255, 255, 255, 0.08) 0%, transparent 50%);
    pointer-events: none;
}

.product-content {
    padding: 60px 0;
    background: var(--quadra-page-bg);
}

.product-info-card {
    background: var(--quadra-card-bg);
    border-radius: 20px;
    padding: 40px;
    margin-bottom: 30px;
    box-shadow: 0 4px 6px var(--quadra-card-shadow);
    transition: transform 0.3s ease;
    border: 1px solid var(--quadra-card-border);
    color: var(--quadra-heading);
}

.product-info-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 15px var(--quadra-card-shadow-hover);
}

.product-hero .back-link {
    color: var(--quadra-hero-text);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 30px;
    transition: opacity 0.3s ease;
    font-family: 'Khand', Arial, sans-serif;
    font-size: 1.1em;
}

.product-hero .back-link:hover {
    opacity: 0.8;
    color: var(--quadra-hero-text);
}

.product-hero .department-card-title {
    font-size: 3.5em;
    margin-bottom: 10px;
    color: var(--quadra-hero-text) !important;
}

.product-hero .lead {
    font-size: 1.6em;
    max-width: 800px;
    margin: 0 auto 30px;
    font-family: 'Khand', Arial, sans-serif;
    color: var(--quadra-hero-text);
}

.product-card-description {
    color: var(--quadra-body-text) !important;
    font-size: 1.15em;
    line-height: 1.8;
}

.product-card-description.lead-block {
    margin-top: 20px;
}

.product-info-card ul.product-card-description {
    font-size: 1.1em;
    line-height: 2;
}

.product-card-description li {
    color: var(--quadra-body-text) !important;
}

.product-info-card .section-header {
    font-size: 2.5em;
    text-align: left;
    margin-bottom: 20px;
    color: var(--quadra-heading) !important;
}

.product-info-card .section-header::after {
    display: none;
}

.product-info-card h3.quadra-usecase-title--primary {
    color: var(--quadra-accent-primary);
    font-family: 'Khand', sans-serif;
    font-size: 1.5em;
    margin-bottom: 15px;
}

.product-info-card h3.quadra-usecase-title--secondary {
    color: var(--quadra-accent-secondary);
    font-family: 'Khand', sans-serif;
    font-size: 1.5em;
    margin-bottom: 15px;
}

.hero-product-image {
    max-width: 400px;
    width: 80%;
    margin: 30px auto;
    filter: drop-shadow(0 20px 40px rgba(0, 0, 0, 0.4));
    animation: quadra-float 3s ease-in-out infinite;
}

@keyframes quadra-float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-15px); }
}

.spec-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 25px;
    margin-top: 30px;
}

.spec-item {
    background: var(--quadra-spec-bg);
    border: 1px solid var(--quadra-spec-border);
    border-radius: 15px;
    padding: 25px;
    text-align: center;
    transition: all 0.3s ease;
}

.spec-item:hover {
    background: var(--quadra-spec-hover-bg);
    transform: translateY(-5px);
    box-shadow: 0 10px 25px var(--quadra-spec-hover-shadow);
}

.spec-value {
    font-family: 'Khand', Arial, sans-serif;
    font-size: 2.5em;
    font-weight: bold;
    color: var(--quadra-spec-value);
    margin-bottom: 10px;
    line-height: 1.1;
}

.spec-label {
    font-family: 'Khand', Arial, sans-serif;
    font-size: 1.1em;
    color: var(--quadra-muted);
}

.highlight-badge {
    display: inline-block;
    padding: 8px 20px;
    background: var(--quadra-badge-bg);
    border-radius: 20px;
    font-family: 'Khand', Arial, sans-serif;
    font-size: 1.2em;
    margin-bottom: 20px;
    backdrop-filter: blur(10px);
    color: var(--quadra-hero-text);
}

.feature-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.feature-list li {
    padding: 15px 0;
    border-bottom: 1px solid var(--quadra-feature-border);
    font-family: 'Khand', Arial, sans-serif;
    font-size: 1.15em;
    display: flex;
    align-items: center;
    gap: 15px;
    color: var(--quadra-body-text);
}

.feature-list li:last-child {
    border-bottom: none;
}

.feature-icon {
    font-size: 0;
    line-height: 0;
    width: 40px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
}

.feature-icon-asset .site-icon-colored {
    width: 32px;
    height: 32px;
    max-width: 100%;
    max-height: 100%;
}

.cta-section {
    background: var(--quadra-cta-gradient);
    border-radius: 25px;
    padding: 50px;
    text-align: center;
    margin-top: 40px;
}

.cta-title {
    font-family: 'Khand', Arial, sans-serif;
    font-size: 2.5em;
    font-weight: bold;
    color: var(--quadra-hero-text);
    margin-bottom: 15px;
}

.cta-text {
    font-family: 'Khand', Arial, sans-serif;
    font-size: 1.3em;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 30px;
}

.coming-soon-container {
    position: relative;
    display: inline-block;
    height: 60px;
    min-width: 220px;
    border-radius: 30px;
    background: var(--quadra-btn-bg);
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.2);
    transition: box-shadow 0.4s cubic-bezier(0.4, 0, 0.2, 1), min-width 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    overflow: hidden;
}

.coming-soon-container.expanded {
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.3);
    min-width: 280px;
}

.coming-soon-btn {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    border: none;
    cursor: pointer;
    white-space: nowrap;
    box-shadow: none;
    background: var(--quadra-btn-bg);
    border-radius: 30px;
    transition: opacity 0.3s ease, transform 0.3s ease;
    z-index: 2;
    font-family: 'Khand', Arial, sans-serif;
    font-weight: bold;
    font-size: 1.2em;
    color: var(--quadra-btn-text);
    padding: 18px 50px;
}

.coming-soon-container.expanded .coming-soon-btn {
    opacity: 0;
    pointer-events: none;
    transform: translateX(-20px);
}

.coming-soon-content {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    padding: 0 20px;
    white-space: nowrap;
    opacity: 0;
    transform: translateX(20px);
    transition: opacity 0.3s ease, transform 0.3s ease;
    z-index: 1;
}

.coming-soon-container.expanded .coming-soon-content {
    opacity: 1;
    transform: translateX(0);
}

.coming-soon-text {
    font-family: 'Khand', Arial, sans-serif;
    font-size: 1.4em;
    font-weight: bold;
    color: var(--quadra-btn-text);
    display: flex;
    align-items: center;
    gap: 10px;
}

.coming-soon-text .icon {
    font-size: 0;
    line-height: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.coming-soon-text .icon-asset .site-icon-colored {
    width: 28px;
    height: 28px;
}

.tech-diagram {
    background: var(--quadra-diagram-bg);
    border-radius: 20px;
    padding: 40px;
    margin: 30px 0;
    text-align: center;
    border: 1px solid var(--quadra-card-border);
}

.tech-diagram-title {
    font-family: 'Khand', Arial, sans-serif;
    font-size: 1.5em;
    color: var(--quadra-heading);
    margin-bottom: 25px;
}

.qubit-display {
    display: flex;
    justify-content: center;
    gap: 30px;
    flex-wrap: wrap;
}

.qubit {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: var(--quadra-qubit-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: 'Khand', Arial, sans-serif;
    font-size: 1.8em;
    font-weight: bold;
    color: white;
    box-shadow: 0 10px 30px var(--quadra-qubit-shadow);
    animation: quadra-pulse 2s ease-in-out infinite;
    animation-delay: var(--delay);
}

.qubit:nth-child(1) { --delay: 0s; }
.qubit:nth-child(2) { --delay: 0.3s; }
.qubit:nth-child(3) { --delay: 0.6s; }
.qubit:nth-child(4) { --delay: 0.9s; }

@keyframes quadra-pulse {
    0%, 100% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.05); opacity: 0.9; }
}

.sample-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 20px;
    margin-top: 25px;
}

.sample-card {
    background: var(--quadra-sample-bg);
    border: 1px solid var(--quadra-spec-border);
    border-radius: 15px;
    padding: 25px;
    text-align: center;
    transition: all 0.3s ease;
}

.sample-card:hover {
    background: var(--quadra-sample-hover-bg);
    transform: translateY(-5px);
    box-shadow: 0 10px 25px var(--quadra-spec-hover-shadow);
}

.sample-qubit-count {
    font-family: 'Khand', Arial, sans-serif;
    font-size: 3em;
    font-weight: bold;
    background: var(--quadra-sample-text-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 10px;
}

.sample-label {
    font-family: 'Khand', Arial, sans-serif;
    font-size: 1.2em;
    color: var(--quadra-heading);
    margin-bottom: 8px;
}

.sample-description {
    font-family: 'Khand', Arial, sans-serif;
    font-size: 0.95em;
    color: var(--quadra-muted);
    line-height: 1.4;
}

.quadra-product-footer {
    background: var(--quadra-footer-bg);
    padding: 40px 0;
    text-align: center;
    border-top: 1px solid var(--quadra-footer-border);
}

.quadra-product-footer p {
    font-family: 'Inter', 'Khand', sans-serif;
    color: var(--quadra-footer-text);
    margin: 0;
    font-size: 0.85em;
}

nav.navbar.fixed-top {
    background: var(--blog-navbar-bg, rgba(26, 26, 46, 0.95)) !important;
    border-bottom: 1px solid var(--quadra-card-border);
}

html[data-theme="light"] .navbar-dark .nav-link,
html[data-theme="light"] .navbar-dark .navbar-brand {
    color: var(--quadra-heading) !important;
}

html[data-theme="midnight"] nav.navbar.fixed-top,
html[data-theme="quantum"] nav.navbar.fixed-top {
    background: var(--blog-navbar-bg) !important;
}

@media (max-width: 767.99px) {
    .product-hero {
        padding: 100px 0 60px;
    }

    .hero-product-image {
        max-width: 280px;
    }

    .spec-value {
        font-size: 2em;
    }

    .cta-section {
        padding: 35px 25px;
    }

    .cta-title {
        font-size: 2em;
    }

    .coming-soon-container {
        height: 54px;
        min-width: 200px;
    }

    .coming-soon-container.expanded {
        min-width: 240px;
    }

    .coming-soon-btn {
        padding: 15px 30px;
        font-size: 1em;
    }

    .coming-soon-text {
        font-size: 1.2em;
    }

    .product-hero .department-card-title {
        font-size: 2.5em;
    }
}