/* ==========================================================================
   BIG SCENE LTD - Exact bigscene-3d.com Color Theme & Typography
   Theme values from Poseidon on http://bigscene-3d.com/bigscene/
   --primary-color: #22aadd (Poseidon Sky Blue)
   --secondary-color: #0084b7
   --tertiary-color: #005e91
   --text-color: #404040
   --heading-font: 'Raleway'
   --body-font: 'Ubuntu'
   ========================================================================== */

:root {
    --font-heading: 'Raleway', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    --font-body: 'Ubuntu', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    --font-mono: 'JetBrains Mono', monospace;

    /* Bigscene-3D Exact Tokens */
    --primary-color: #22aadd;
    --primary-hover: #0084b7;
    --secondary-color: #0084b7;
    --tertiary-color: #005e91;
    --accent-red: #dd2e22;
    --accent-green: #00b734;

    --bg-page: #ffffff;
    --bg-light: #f7f9fa;
    --bg-card: #ffffff;

    --text-color: #404040;
    --text-heading: #222222;
    --text-medium: #666666;
    --text-light: #888888;

    --border-light: #e5e5e5;
    --border-medium: #d0d7de;
    --border-accent: #22aadd;

    /* Shadows */
    --shadow-subtle: 0 2px 8px rgba(0, 0, 0, 0.05);
    --shadow-card: 0 4px 16px rgba(0, 0, 0, 0.07);
    --shadow-card-hover: 0 10px 28px rgba(34, 170, 221, 0.18);

    /* Spacing & Sizes */
    --container-max: 1180px;
    --nav-height: 80px;
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-full: 9999px;

    --transition: all 0.25s ease-in-out;
}

/* Reset & Base */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    background-color: var(--bg-page);
    color: var(--text-color);
    font-family: var(--font-body);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

/* Container */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 24px;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    color: var(--text-heading);
    line-height: 1.3;
    font-weight: 700;
}

a {
    color: var(--primary-color);
    text-decoration: none;
    transition: var(--transition);
}

a:hover {
    color: var(--primary-hover);
}

.gradient-text {
    color: var(--primary-color);
    font-weight: 800;
}

.section-padding {
    padding: 85px 0;
}

.bg-surface {
    background-color: var(--bg-light);
    border-top: 1px solid var(--border-light);
    border-bottom: 1px solid var(--border-light);
}

.section-header {
    margin-bottom: 48px;
}

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

.section-tag {
    display: inline-block;
    font-family: var(--font-heading);
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    color: var(--primary-color);
    text-transform: uppercase;
    margin-bottom: 10px;
    padding: 4px 14px;
    background: #eef9fd;
    border: 1px solid #bce4f5;
    border-radius: var(--radius-sm);
}

.section-title {
    font-size: 2.4rem;
    margin-bottom: 14px;
    color: var(--text-heading);
}

.section-description {
    font-size: 1.1rem;
    color: var(--text-medium);
    max-width: 720px;
    margin: 0 auto;
    line-height: 1.65;
}

/* Header & Nav */
.site-header {
    position: sticky;
    top: 0;
    width: 100%;
    height: var(--nav-height);
    background: #ffffff;
    border-bottom: 2px solid #eeeeee;
    z-index: 100;
    box-shadow: var(--shadow-subtle);
}

.nav-container {
    max-width: var(--container-max);
    height: 100%;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.brand-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
}

.logo-image {
    width: 44px;
    height: 44px;
    object-fit: contain;
    border-radius: 4px;
}

.logo-symbol {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-sm);
    background: var(--primary-color);
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 1.15rem;
    color: #fff;
    box-shadow: 0 3px 10px rgba(34, 170, 221, 0.3);
}

.symbol-accent {
    color: #ffffff;
}

.logo-text {
    display: flex;
    align-items: baseline;
    gap: 6px;
}

.company-name {
    font-family: var(--font-heading);
    font-size: 1.35rem;
    font-weight: 800;
    letter-spacing: 0.02em;
    color: var(--text-heading);
}

.company-tag {
    font-family: var(--font-heading);
    font-size: 0.78rem;
    font-weight: 700;
    color: var(--primary-color);
    padding: 2px 7px;
    background: #eef9fd;
    border-radius: var(--radius-sm);
    border: 1px solid #bce4f5;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 28px;
}

.nav-link {
    font-family: var(--font-heading);
    color: var(--text-heading);
    text-decoration: none;
    font-size: 0.92rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    transition: color 0.2s;
    position: relative;
    padding: 6px 0;
}

.nav-link:hover {
    color: var(--primary-color);
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 16px;
}

.mobile-toggle {
    display: none;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.mobile-toggle span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--text-heading);
    margin: 5px 0;
    transition: 0.3s;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    text-decoration: none;
    font-family: var(--font-heading);
    font-weight: 700;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: var(--transition);
    border: none;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.btn-sm {
    padding: 8px 18px;
    font-size: 0.82rem;
}

.btn-md {
    padding: 12px 24px;
    font-size: 0.9rem;
}

.btn-lg {
    padding: 14px 28px;
    font-size: 0.96rem;
}

.btn-primary {
    background-color: var(--primary-color);
    color: #ffffff;
    box-shadow: 0 3px 12px rgba(34, 170, 221, 0.3);
}

.btn-primary:hover {
    background-color: var(--primary-hover);
    color: #ffffff;
    transform: translateY(-2px);
    box-shadow: 0 6px 18px rgba(34, 170, 221, 0.45);
}

.btn-cyan {
    background-color: var(--secondary-color);
    color: #ffffff;
    box-shadow: 0 3px 12px rgba(0, 132, 183, 0.3);
}

.btn-cyan:hover {
    background-color: var(--tertiary-color);
    color: #ffffff;
    transform: translateY(-2px);
    box-shadow: 0 6px 18px rgba(0, 132, 183, 0.45);
}

.btn-glass {
    background: #ffffff;
    border: 2px solid var(--border-medium);
    color: var(--text-heading);
}

.btn-glass:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
    background: #fdfdfd;
    transform: translateY(-2px);
}

.w-full {
    width: 100%;
}

/* Hero Section */
.hero-section {
    padding: 90px 0 70px 0;
    text-align: center;
    background: linear-gradient(180deg, #ffffff 0%, #f7f9fa 100%);
    border-bottom: 1px solid var(--border-light);
}

.hero-container {
    max-width: 960px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: #eef9fd;
    border: 1px solid #bce4f5;
    padding: 6px 18px;
    border-radius: var(--radius-sm);
    margin-bottom: 24px;
}

.pulse-dot {
    width: 8px;
    height: 8px;
    background-color: var(--primary-color);
    border-radius: 50%;
    box-shadow: 0 0 8px var(--primary-color);
}

.badge-text {
    font-family: var(--font-heading);
    font-size: 0.82rem;
    font-weight: 700;
    color: var(--primary-color);
    letter-spacing: 0.06em;
    text-transform: uppercase;
}

.hero-title {
    font-size: 3.2rem;
    letter-spacing: -0.01em;
    line-height: 1.2;
    margin-bottom: 20px;
    color: var(--text-heading);
}

.hero-subtitle {
    font-size: 1.18rem;
    color: var(--text-medium);
    line-height: 1.7;
    margin-bottom: 36px;
    max-width: 820px;
    margin-left: auto;
    margin-right: auto;
}

.hero-cta-group {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    margin-bottom: 56px;
    flex-wrap: wrap;
}

/* Metrics Grid */
.metrics-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
}

.metric-card {
    background: #ffffff;
    border: 1px solid var(--border-light);
    border-top: 3px solid var(--primary-color);
    border-radius: var(--radius-sm);
    padding: 24px 16px;
    text-align: center;
    box-shadow: var(--shadow-subtle);
    transition: var(--transition);
}

.metric-card:hover {
    transform: translateY(-4px);
    border-color: var(--primary-color);
    box-shadow: var(--shadow-card);
}

.metric-val {
    font-family: var(--font-heading);
    font-size: 2.1rem;
    font-weight: 800;
    color: var(--primary-color);
    margin-bottom: 4px;
}

.metric-label {
    font-size: 0.85rem;
    color: var(--text-medium);
    font-weight: 600;
}

/* Products Grid */
.products-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
}

.product-card {
    background: #ffffff;
    border: 1px solid var(--border-light);
    border-top: 4px solid var(--primary-color);
    border-radius: var(--radius-md);
    padding: 36px;
    display: flex;
    flex-direction: column;
    position: relative;
    box-shadow: var(--shadow-card);
    transition: var(--transition);
}

.product-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary-color);
    box-shadow: var(--shadow-card-hover);
}

/* Top Row: Flex between icon and badge - NEVER OVERLAPS */
.card-top-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 22px;
    flex-wrap: wrap;
}

.card-badge {
    display: inline-flex;
    align-items: center;
    font-size: 0.75rem;
    font-family: var(--font-heading);
    font-weight: 700;
    color: var(--primary-color);
    background: #eef9fd;
    border: 1px solid #bce4f5;
    padding: 5px 12px;
    border-radius: var(--radius-sm);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    line-height: 1.3;
}

.product-title-group {
    margin-bottom: 18px;
}

.product-icon-box {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.icon-purple {
    background: #fbf5ff;
    border: 1px solid #e9d5ff;
    color: #7e22ce;
}

.icon-cyan {
    background: #eef9fd;
    border: 1px solid #bce4f5;
    color: var(--primary-color);
}

.product-title {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: 4px;
    color: var(--text-heading);
    line-height: 1.25;
}

.product-subtitle {
    font-size: 0.95rem;
    color: var(--text-medium);
}

.product-summary {
    color: var(--text-color);
    font-size: 1rem;
    line-height: 1.65;
    margin-bottom: 24px;
}

.product-features-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 30px;
    flex-grow: 1;
}

.p-feature-item {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    font-size: 0.94rem;
    color: var(--text-color);
}

.check-icon {
    color: var(--primary-color);
    flex-shrink: 0;
    margin-top: 3px;
}

.card-footer-action {
    margin-top: auto;
}

/* AI Methodology Section */
.methodology-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.method-card {
    background: #ffffff;
    border: 1px solid var(--border-light);
    border-radius: var(--radius-sm);
    padding: 28px 22px;
    box-shadow: var(--shadow-subtle);
    transition: var(--transition);
}

.method-card:hover {
    transform: translateY(-4px);
    border-color: var(--primary-color);
    box-shadow: var(--shadow-card);
}

.method-num {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--primary-color);
    margin-bottom: 12px;
}

.method-title {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 10px;
    color: var(--text-heading);
}

.method-text {
    font-size: 0.94rem;
    color: var(--text-medium);
    line-height: 1.6;
}

/* Engineering Blog Section */
.blog-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 26px;
    margin-bottom: 44px;
}

.blog-card {
    background: #ffffff;
    border: 1px solid var(--border-light);
    border-radius: var(--radius-sm);
    padding: 30px;
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow-subtle);
    transition: var(--transition);
    text-decoration: none;
    color: inherit;
    cursor: pointer;
}

.blog-card:hover {
    transform: translateY(-4px);
    border-color: var(--primary-color);
    box-shadow: var(--shadow-card);
}

.blog-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 14px;
}

.blog-pill {
    font-family: var(--font-heading);
    font-size: 0.72rem;
    font-weight: 700;
    color: var(--primary-color);
    background: #eef9fd;
    border: 1px solid #bce4f5;
    padding: 3px 10px;
    border-radius: var(--radius-sm);
    text-transform: uppercase;
}

.blog-date {
    font-size: 0.8rem;
    color: var(--text-light);
    font-weight: 600;
}

.blog-title {
    font-size: 1.22rem;
    line-height: 1.4;
    margin-bottom: 12px;
    color: var(--text-heading);
}

.blog-excerpt {
    font-size: 0.94rem;
    color: var(--text-medium);
    line-height: 1.6;
    margin-bottom: 18px;
    flex-grow: 1;
}

.blog-tags {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.blog-tags span {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-light);
    background: #f5f5f5;
    padding: 2px 8px;
    border-radius: var(--radius-sm);
}

/* Newsletter Card */
.newsletter-card {
    background: #eef9fd;
    border: 1px solid #bce4f5;
    border-left: 5px solid var(--primary-color);
    border-radius: var(--radius-sm);
    padding: 36px 40px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 32px;
    box-shadow: var(--shadow-subtle);
}

.newsletter-content {
    max-width: 500px;
}

.newsletter-title {
    font-size: 1.5rem;
    margin-bottom: 6px;
    color: var(--text-heading);
}

.newsletter-desc {
    color: var(--text-medium);
    font-size: 0.95rem;
}

.newsletter-form {
    display: flex;
    gap: 10px;
    flex-grow: 1;
    max-width: 460px;
}

.newsletter-input {
    flex-grow: 1;
    padding: 12px 16px;
    background: #ffffff;
    border: 1px solid var(--border-medium);
    border-radius: var(--radius-sm);
    color: var(--text-heading);
    font-size: 0.95rem;
    outline: none;
    transition: var(--transition);
}

.newsletter-input:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(34, 170, 221, 0.25);
}

/* Founder Section */
.founder-card {
    background: #ffffff;
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    padding: 50px 44px;
    display: flex;
    gap: 48px;
    align-items: center;
    box-shadow: var(--shadow-card);
}

.founder-avatar-col {
    display: flex;
    flex-direction: column;
    align-items: center;
    flex-shrink: 0;
}

.founder-avatar-frame {
    width: 150px;
    height: 150px;
    border-radius: 50%;
    background: #ffffff;
    border: 4px solid var(--primary-color);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 8px 24px rgba(34, 170, 221, 0.2);
    margin-bottom: 14px;
    overflow: hidden;
}

.founder-initials {
    font-family: var(--font-heading);
    font-size: 3.2rem;
    font-weight: 800;
    color: var(--primary-color);
    letter-spacing: -0.02em;
}

.founder-status-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.8rem;
    font-weight: 700;
    font-family: var(--font-heading);
    text-transform: uppercase;
    color: var(--text-medium);
    background: #f5f5f5;
    padding: 5px 12px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-light);
}

.status-indicator {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--accent-green);
}

.founder-name {
    font-size: 2.3rem;
    margin-bottom: 4px;
    color: var(--text-heading);
}

.founder-title {
    font-size: 1.1rem;
    color: var(--primary-color);
    font-weight: 700;
    margin-bottom: 18px;
}

.founder-narrative p {
    font-size: 1.05rem;
    color: var(--text-color);
    margin-bottom: 14px;
    line-height: 1.7;
}

.founder-links {
    margin-top: 20px;
}

/* Company / Legal Section */
.company-details-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 18px;
    max-width: 900px;
    margin: 0 auto 32px auto;
}

.company-info-card {
    background: #ffffff;
    border: 1px solid var(--border-light);
    border-radius: var(--radius-sm);
    padding: 22px;
    box-shadow: var(--shadow-subtle);
}

.company-info-card.full-span {
    grid-column: span 2;
}

.info-label {
    font-size: 0.78rem;
    font-family: var(--font-heading);
    color: var(--text-light);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 6px;
    font-weight: 700;
}

.info-value {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--text-heading);
}

.highlight-text {
    font-family: var(--font-heading);
    color: var(--primary-color);
    font-size: 1.4rem;
    font-weight: 800;
}

.sic-tags {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-top: 4px;
}

.sic-badge {
    font-size: 0.94rem;
    color: var(--text-color);
    background: #f7f9fa;
    padding: 8px 12px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-light);
}

.companies-house-verify {
    text-align: center;
}

.ch-link {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    color: var(--text-heading);
    text-decoration: none;
    font-family: var(--font-heading);
    font-size: 0.94rem;
    font-weight: 700;
    padding: 12px 24px;
    border-radius: var(--radius-sm);
    background: #ffffff;
    border: 2px solid var(--primary-color);
    box-shadow: var(--shadow-subtle);
    transition: var(--transition);
}

.ch-link:hover {
    background: var(--primary-color);
    color: #ffffff;
    transform: translateY(-2px);
    box-shadow: var(--shadow-card);
}

/* Footer */
.site-footer {
    background: #ffffff;
    border-top: 2px solid var(--border-light);
    padding-top: 60px;
}

.footer-container {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.2fr;
    gap: 40px;
    padding-bottom: 40px;
}

.footer-mission {
    font-size: 0.94rem;
    color: var(--text-medium);
    margin: 16px 0;
    max-width: 320px;
    line-height: 1.6;
}

.footer-reg {
    font-size: 0.8rem;
    font-family: var(--font-heading);
    color: var(--text-light);
    font-weight: 700;
    text-transform: uppercase;
}

.footer-heading {
    font-size: 1rem;
    font-weight: 800;
    margin-bottom: 16px;
    color: var(--text-heading);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.footer-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.footer-list a {
    color: var(--text-medium);
    text-decoration: none;
    font-size: 0.92rem;
    font-weight: 500;
    transition: color var(--transition);
}

.footer-list a:hover {
    color: var(--primary-color);
}

.footer-bottom {
    border-top: 1px solid var(--border-light);
    padding: 20px 0;
    font-size: 0.85rem;
    color: var(--text-light);
    background: #f7f9fa;
}

.footer-bottom-flex {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* Toast */
.toast {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background: var(--text-heading);
    color: #ffffff;
    padding: 14px 22px;
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    font-family: var(--font-heading);
    font-weight: 600;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
    opacity: 0;
    visibility: hidden;
    transform: translateY(15px);
    transition: var(--transition);
    z-index: 999;
}

.toast.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

/* Responsive Breakpoints */
@media (max-width: 1024px) {
    .metrics-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .methodology-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .blog-grid {
        grid-template-columns: 1fr;
    }
    .footer-container {
        grid-template-columns: 1fr 1fr;
    }
    .founder-card {
        flex-direction: column;
        text-align: center;
        gap: 28px;
    }
    .founder-bio-col {
        text-align: center;
    }
}

@media (max-width: 768px) {
    .hero-title {
        font-size: 2.3rem;
    }
    .products-grid {
        grid-template-columns: 1fr;
    }
    .methodology-grid {
        grid-template-columns: 1fr;
    }
    .company-details-grid {
        grid-template-columns: 1fr;
    }
    .company-info-card.full-span {
        grid-column: span 1;
    }
    .newsletter-card {
        flex-direction: column;
        align-items: flex-start;
        padding: 24px;
    }
    .newsletter-form {
        width: 100%;
        flex-direction: column;
    }
    .footer-container {
        grid-template-columns: 1fr;
    }
    .footer-bottom-flex {
        flex-direction: column;
        gap: 10px;
        text-align: center;
    }
    .nav-menu {
        position: fixed;
        top: var(--nav-height);
        left: 0;
        width: 100%;
        background: #ffffff;
        flex-direction: column;
        padding: 24px;
        gap: 16px;
        border-bottom: 2px solid var(--border-light);
        box-shadow: 0 10px 20px rgba(0, 0, 0, 0.08);
        transform: translateY(-150%);
        transition: transform 0.3s ease;
    }
    .nav-menu.active {
        transform: translateY(0);
    }
    .mobile-toggle {
        display: block;
    }
    .nav-actions .btn {
        display: none;
    }
}