/* ===========================
   VARIABLES
=========================== */
:root {
    --color-bg:           #0d0d14;
    --color-bg-alt:       #13131f;
    --color-bg-card:      #1a1a2e;
    --color-border:       rgba(99, 102, 241, 0.15);
    --color-primary:      #6366f1;
    --color-primary-h:    #7c3aed;
    --color-glow:         rgba(99, 102, 241, 0.25);

    --color-text:         rgba(255, 255, 255, 0.75);
    --color-text-strong:  #ffffff;
    --color-text-muted:   rgba(255, 255, 255, 0.4);
    --color-label:        #6366f1;

    --font-heading: 'Poppins', sans-serif;
    --font-body:    'Inter', sans-serif;

    --max-width:  1170px;
    --transition: 0.25s ease;
    --radius:     8px;
    --radius-lg:  16px;
}

/* ===========================
   LIGHT MODE
=========================== */
body.light {
    --color-primary:      #1e40af;
    --color-primary-h:    #1d4ed8;
    --color-glow:         rgba(30, 64, 175, 0.15);
    --color-label:        #1e40af;

    --color-bg:           #ffffff;
    --color-bg-alt:       #eef2ff;
    --color-bg-card:      #ffffff;
    --color-border:       rgba(30, 64, 175, 0.15);

    --color-text:         #374151;
    --color-text-strong:  #0f172a;
    --color-text-muted:   #9ca3af;
}

/* Page hero */
body.light .page-hero {
    background: #eef2ff;
    border-bottom: 1px solid rgba(30, 64, 175, 0.1);
}

body.light .page-hero h1 { color: #0f172a; }
body.light .page-hero p  { color: #374151; }

/* Alt background sections */
body.light .section.alt-bg { background: #eef2ff; }

/* Coming soon */
body.light .coming-soon { background: #ffffff; }

/* Pain / explainer / test-cat / metric / tool cards */
body.light .explainer-card,
body.light .test-cat,
body.light .metric-card,
body.light .tool-item,
body.light .engagement-card,
body.light .philosophy-item,
body.light .bg-item,
body.light .when-item,
body.light .include-item {
    background: #ffffff;
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.06);
}

body.light .explainer-card h3,
body.light .test-cat h3,
body.light .metric-card h4,
body.light .engagement-card h3,
body.light .philosophy-item h3,
body.light .bg-item h3,
body.light .service-block-title,
body.light .service-section-heading,
body.light .helps-body h3,
body.light .section-title { color: #0f172a; }

/* Case study cards */
body.light .case-study-card {
    background: #ffffff;
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.06);
}

body.light .case-study-header,
body.light .case-body { border-color: rgba(30, 64, 175, 0.1); }

/* Timeline */
body.light .timeline::before { background: rgba(30, 64, 175, 0.15); }
body.light .timeline-step h3  { color: #0f172a; }

/* Service detail */
body.light .service-detail-icon {
    background: rgba(30, 64, 175, 0.07);
}
body.light .service-detail-content h2 { color: #0f172a; }

/* Helps grid border */
body.light .helps-grid  { border-color: rgba(30, 64, 175, 0.12); }
body.light .helps-item  { border-color: rgba(30, 64, 175, 0.1); }

/* About bio */
body.light .about-role {
    background: #eef2ff;
    border-color: rgba(30, 64, 175, 0.12);
}
body.light .photo-placeholder-box {
    background: #eef2ff;
    border-color: rgba(30, 64, 175, 0.12);
}
body.light .about-text h2 { color: #0f172a; }

/* Contact form */
body.light .contact-form {
    background: #ffffff;
    box-shadow: 0 1px 6px rgba(0, 0, 0, 0.07);
}
body.light .contact-form input,
body.light .contact-form textarea {
    background: #f8faff;
    border-color: rgba(30, 64, 175, 0.15);
    color: #0f172a;
}
body.light .contact-info-col h2 { color: #0f172a; }
body.light .contact-note {
    background: #eef2ff;
    border-color: rgba(30, 64, 175, 0.12);
}

/* Navbar */
body.light .navbar {
    background: rgba(255, 255, 255, 0.95);
    border-bottom: 1px solid rgba(0, 0, 0, 0.08);
    box-shadow: 0 1px 8px rgba(0, 0, 0, 0.05);
}

body.light .logo-text { color: #111827; }

body.light .nav-links a { color: #374151; }
body.light .nav-links a:hover,
body.light .nav-links a.active { color: #111827; }

/* Hero */
body.light .hero { background: #eef2ff; }

body.light .hero::before {
    background: radial-gradient(circle, rgba(30, 64, 175, 0.1) 0%, transparent 70%);
}

body.light .hero h1 { color: #111827; }
body.light .hero-sub { color: #4b5563; }

body.light .btn-ghost {
    border-color: rgba(0, 0, 0, 0.18);
    color: #111827;
}
body.light .btn-ghost:hover { border-color: rgba(0, 0, 0, 0.35); }

body.light .hero-trust span {
    background: #ffffff;
    border-color: rgba(30, 64, 175, 0.2);
    color: #374151;
}

/* Cards & pain cards */
body.light .pain-card,
body.light .card {
    background: #ffffff;
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.06);
}

body.light .pain-card h3,
body.light .card h3 { color: #111827; }

/* How I help */
body.light .helps-item { border-color: rgba(30, 64, 175, 0.1); }
body.light .helps-item:hover { background: #eef2ff; }
body.light .helps-body h3 { color: #111827; }

/* Services overview */
body.light .services-overview { background: #eef2ff; }

/* Footer */
body.light .footer {
    background: #111827;
    border-top: none;
}
body.light .footer .logo-text { color: #ffffff; }
body.light .footer-inner p { color: rgba(255, 255, 255, 0.45); }

/* ===========================
   RESET & BASE
=========================== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
    font-family: var(--font-body);
    font-size: 1rem;
    line-height: 1.75;
    color: var(--color-text);
    background: var(--color-bg);
}

a { text-decoration: none; color: inherit; }

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

ul { list-style: none; }

/* ===========================
   LAYOUT
=========================== */
.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 28px;
}

.section { padding: 100px 0; }

.section.alt-bg { background: var(--color-bg-alt); }

/* ===========================
   TYPOGRAPHY UTILITIES
=========================== */
.section-label {
    display: inline-block;
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--color-label);
    margin-bottom: 16px;
}

.section-title {
    font-family: var(--font-heading);
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-text-strong);
    margin-bottom: 24px;
    line-height: 1.2;
}

.section-intro {
    max-width: 640px;
    font-size: 1.05rem;
    color: var(--color-text);
    margin-bottom: 48px;
}

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

/* ===========================
   BUTTONS
=========================== */
.btn {
    display: inline-block;
    padding: 13px 28px;
    font-family: var(--font-body);
    font-size: 0.95rem;
    font-weight: 500;
    border-radius: var(--radius);
    transition: all var(--transition);
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: var(--color-primary);
    color: #fff;
}

.btn-primary:hover {
    background: var(--color-primary-h);
    box-shadow: 0 0 24px var(--color-glow);
}

.btn-ghost {
    background: transparent;
    color: var(--color-text-strong);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.btn-ghost:hover {
    border-color: rgba(255, 255, 255, 0.45);
    color: #fff;
}

.btn-outline {
    background: transparent;
    color: var(--color-primary);
    border: 1px solid var(--color-primary);
}

.btn-outline:hover {
    background: var(--color-primary);
    color: #fff;
    box-shadow: 0 0 20px var(--color-glow);
}

/* ===========================
   NAVBAR
=========================== */
.navbar {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(13, 13, 20, 0.9);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--color-border);
    padding: 18px 0;
    transition: background var(--transition);
}

.navbar .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}

.logo-text {
    font-family: var(--font-heading);
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--color-text-strong);
}

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

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

.nav-links a {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--color-text);
    transition: color var(--transition);
}

.nav-links a:hover,
.nav-links a.active { color: var(--color-text-strong); }

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

.nav-cta {
    padding: 8px 20px;
    background: var(--color-primary) !important;
    color: #fff !important;
    border-radius: 20px;
    font-weight: 600 !important;
    transition: all var(--transition) !important;
}

.nav-cta:hover {
    background: var(--color-primary-h) !important;
    box-shadow: 0 0 16px var(--color-glow);
}

.nav-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.3rem;
    cursor: pointer;
    color: var(--color-text-strong);
}

/* ===========================
   FOOTER
=========================== */
.footer {
    background: var(--color-bg-alt);
    border-top: 1px solid var(--color-border);
    padding: 40px 0;
}

.footer-inner {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    text-align: center;
}

.footer-inner p {
    font-size: 0.88rem;
    color: var(--color-text-muted);
}

/* ===========================
   HERO (HOME)
=========================== */
.hero {
    background: var(--color-bg);
    padding: 120px 0 100px;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -200px;
    left: 50%;
    transform: translateX(-50%);
    width: 700px;
    height: 700px;
    background: radial-gradient(circle, rgba(99, 102, 241, 0.12) 0%, transparent 70%);
    pointer-events: none;
}

.hero-inner {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.hero-eyebrow {
    display: inline-block;
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--color-primary);
    margin-bottom: 20px;
}

.hero h1 {
    font-family: var(--font-heading);
    font-size: clamp(2.4rem, 5vw, 3.5rem);
    font-weight: 800;
    color: var(--color-text-strong);
    line-height: 1.1;
    margin-bottom: 24px;
}

.hero-sub {
    font-size: 1.15rem;
    color: var(--color-text);
    max-width: 580px;
    margin: 0 auto 40px;
    line-height: 1.7;
}

.hero-actions {
    display: flex;
    gap: 14px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 48px;
}

.hero-trust {
    display: flex;
    gap: 10px;
    justify-content: center;
    flex-wrap: wrap;
}

.hero-trust span {
    font-size: 0.78rem;
    font-weight: 500;
    color: var(--color-text-muted);
    padding: 6px 14px;
    border: 1px solid var(--color-border);
    border-radius: 20px;
    background: var(--color-bg-card);
}

/* ===========================
   PAIN POINTS
=========================== */
.pain-points {
    background: var(--color-bg-alt);
}

.pain-points .section-title,
.pain-points .section-label {
    text-align: center;
    display: block;
}

.pain-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-top: 48px;
}

.pain-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 32px 28px;
    transition: border-color var(--transition), box-shadow var(--transition);
}

.pain-card:hover {
    border-color: var(--color-primary);
    box-shadow: 0 0 24px var(--color-glow);
}

.pain-card i {
    font-size: 1.4rem;
    color: var(--color-primary);
    margin-bottom: 16px;
    display: block;
}

.pain-card h3 {
    font-family: var(--font-heading);
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-text-strong);
    margin-bottom: 10px;
}

.pain-card p {
    font-size: 0.92rem;
    color: var(--color-text);
    line-height: 1.65;
}

/* ===========================
   HOW I HELP
=========================== */
.how-helps { background: var(--color-bg); }

.helps-grid {
    display: flex;
    flex-direction: column;
    gap: 0;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.helps-item {
    display: flex;
    align-items: flex-start;
    gap: 32px;
    padding: 36px 40px;
    border-bottom: 1px solid var(--color-border);
    transition: background var(--transition);
}

.helps-item:last-child { border-bottom: none; }

.helps-item:hover { background: var(--color-bg-alt); }

.helps-num {
    font-family: var(--font-heading);
    font-size: 1.6rem;
    font-weight: 800;
    color: var(--color-primary);
    opacity: 0.4;
    min-width: 48px;
    line-height: 1;
    padding-top: 2px;
}

.helps-body h3 {
    font-family: var(--font-heading);
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--color-text-strong);
    margin-bottom: 8px;
}

.helps-body p {
    font-size: 0.93rem;
    color: var(--color-text);
}

/* ===========================
   SERVICES OVERVIEW (HOME)
=========================== */
.services-overview { background: var(--color-bg-alt); }

.cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 36px 28px;
    transition: border-color var(--transition), box-shadow var(--transition);
    display: flex;
    flex-direction: column;
}

.card:hover {
    border-color: var(--color-primary);
    box-shadow: 0 0 24px var(--color-glow);
}

.card i {
    font-size: 1.6rem;
    color: var(--color-primary);
    margin-bottom: 20px;
}

.card h3 {
    font-family: var(--font-heading);
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--color-text-strong);
    margin-bottom: 12px;
}

.card p {
    font-size: 0.92rem;
    color: var(--color-text);
    flex: 1;
    margin-bottom: 20px;
}

.card-link {
    font-size: 0.87rem;
    font-weight: 600;
    color: var(--color-primary);
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: gap var(--transition);
}

.card-link:hover { gap: 10px; }

.section-cta {
    text-align: center;
    margin-top: 40px;
}

/* ===========================
   CTA STRIP
=========================== */
.cta-strip {
    background: var(--color-primary);
    padding: 80px 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.cta-strip::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(124, 58, 237, 0.4) 0%, transparent 60%);
    pointer-events: none;
}

.cta-strip h2 {
    font-family: var(--font-heading);
    font-size: 2rem;
    font-weight: 700;
    color: #fff;
    margin-bottom: 12px;
    position: relative;
}

.cta-strip p {
    font-size: 1.05rem;
    color: rgba(255, 255, 255, 0.85);
    margin-bottom: 32px;
    position: relative;
}

.cta-strip .btn {
    background: #fff;
    color: var(--color-primary);
    font-weight: 600;
    position: relative;
}

.cta-strip .btn:hover {
    background: rgba(255, 255, 255, 0.9);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
}

/* ===========================
   PAGE HERO (inner pages)
=========================== */
.page-hero {
    background: var(--color-bg-alt);
    border-bottom: 1px solid var(--color-border);
    padding: 80px 0 60px;
}

.page-hero h1 {
    font-family: var(--font-heading);
    font-size: clamp(2rem, 4vw, 2.8rem);
    font-weight: 700;
    color: var(--color-text-strong);
    margin-bottom: 16px;
    line-height: 1.15;
}

.page-hero p {
    font-size: 1.1rem;
    color: var(--color-text);
    max-width: 600px;
}

/* ===========================
   SERVICES PAGE
=========================== */

/* Service Block — main layout unit per service */
.service-block {
    display: flex;
    flex-direction: column;
    gap: 56px;
}

.service-block-header {
    display: flex;
    align-items: flex-start;
    gap: 28px;
}

.service-block-icon {
    width: 56px;
    height: 56px;
    min-width: 56px;
    background: rgba(99, 102, 241, 0.12);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-top: 4px;
}

.service-block-icon i {
    font-size: 1.3rem;
    color: var(--color-primary);
}

.service-block-title {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--color-text-strong);
    margin-bottom: 10px;
}

.service-block-sub {
    font-size: 1.05rem;
    color: var(--color-text);
    max-width: 640px;
    line-height: 1.7;
}

.service-divider {
    height: 1px;
    background: var(--color-border);
    margin: 0;
}

.service-section-heading {
    font-family: var(--font-heading);
    font-size: 0.78rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--color-text-muted);
    margin-bottom: 24px;
}

/* What's included grid */
.service-includes-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.include-item {
    display: flex;
    align-items: flex-start;
    gap: 18px;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 24px 22px;
    transition: border-color var(--transition);
}

.include-item:hover { border-color: var(--color-primary); }

.include-item > i {
    font-size: 1rem;
    color: var(--color-primary);
    margin-top: 3px;
    min-width: 18px;
}

.include-item h4 {
    font-family: var(--font-heading);
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--color-text-strong);
    margin-bottom: 6px;
}

.include-item p {
    font-size: 0.88rem;
    color: var(--color-text);
    line-height: 1.6;
}

/* When you need this */
.when-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
}

.when-item {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    padding: 20px 18px;
    background: var(--color-bg-alt);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
}

.when-item > i {
    font-size: 0.95rem;
    color: var(--color-primary);
    margin-top: 3px;
    min-width: 16px;
}

.when-item p {
    font-size: 0.88rem;
    color: var(--color-text);
    line-height: 1.6;
}

.engagement-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-top: 8px;
}

.engagement-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 36px 28px;
    transition: border-color var(--transition);
}

.engagement-card:hover { border-color: var(--color-primary); }

.engagement-tag {
    display: inline-block;
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--color-primary);
    background: rgba(99, 102, 241, 0.1);
    padding: 4px 10px;
    border-radius: 4px;
    margin-bottom: 16px;
}

.engagement-card h3 {
    font-family: var(--font-heading);
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--color-text-strong);
    margin-bottom: 10px;
}

.engagement-card p {
    font-size: 0.92rem;
    color: var(--color-text);
}

.service-detail { padding: 80px 0; }

.service-detail-inner {
    display: grid;
    grid-template-columns: 64px 1fr;
    gap: 32px;
    align-items: start;
}

.service-detail-icon {
    width: 64px;
    height: 64px;
    background: rgba(99, 102, 241, 0.12);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
}

.service-detail-icon i {
    font-size: 1.5rem;
    color: var(--color-primary);
}

.service-detail-content h2 {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-text-strong);
    margin-bottom: 12px;
}

.service-detail-content p {
    margin-bottom: 20px;
    font-size: 0.97rem;
}

.check-list { display: flex; flex-direction: column; gap: 10px; }

.check-list li {
    font-size: 0.93rem;
    color: var(--color-text);
    padding-left: 24px;
    position: relative;
}

.check-list li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--color-primary);
    font-weight: 600;
}

.timeline {
    display: flex;
    flex-direction: column;
    gap: 0;
    position: relative;
    padding-left: 48px;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 14px;
    top: 8px;
    bottom: 8px;
    width: 2px;
    background: var(--color-border);
}

.timeline-step {
    position: relative;
    padding: 0 0 36px 24px;
}

.timeline-step:last-child { padding-bottom: 0; }

.timeline-dot {
    position: absolute;
    left: -34px;
    top: 6px;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--color-primary);
    box-shadow: 0 0 12px var(--color-glow);
}

.timeline-step h3 {
    font-family: var(--font-heading);
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-text-strong);
    margin-bottom: 6px;
}

.timeline-step p { font-size: 0.92rem; }

/* ===========================
   AI TESTING PAGE
=========================== */
.explainer-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-top: 48px;
}

.explainer-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 32px 28px;
}

.explainer-card i {
    font-size: 1.5rem;
    color: var(--color-primary);
    margin-bottom: 16px;
    display: block;
}

.explainer-card h3 {
    font-family: var(--font-heading);
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-text-strong);
    margin-bottom: 10px;
}

.explainer-card p { font-size: 0.92rem; }

.testing-categories {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    margin-top: 8px;
}

.test-cat {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 32px 28px;
    transition: border-color var(--transition);
}

.test-cat:hover { border-color: var(--color-primary); }

.test-cat-tag {
    display: inline-block;
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--color-primary);
    background: rgba(99, 102, 241, 0.1);
    padding: 3px 9px;
    border-radius: 4px;
    margin-bottom: 14px;
}

.test-cat h3 {
    font-family: var(--font-heading);
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--color-text-strong);
    margin-bottom: 10px;
}

.test-cat p { font-size: 0.92rem; margin-bottom: 16px; }

.test-cat ul { display: flex; flex-direction: column; gap: 6px; }

.test-cat ul li {
    font-size: 0.88rem;
    color: var(--color-text-muted);
    padding-left: 18px;
    position: relative;
}

.test-cat ul li::before {
    content: '·';
    position: absolute;
    left: 6px;
    color: var(--color-primary);
}

.metrics-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    margin-top: 8px;
}

.metric-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 28px 20px;
    text-align: center;
}

.metric-card h4 {
    font-family: var(--font-heading);
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--color-text-strong);
    margin-bottom: 8px;
}

.metric-card p { font-size: 0.85rem; color: var(--color-text-muted); }

.tools-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    margin-top: 8px;
}

.tool-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    padding: 24px;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
}

.tool-item code {
    font-family: 'Courier New', monospace;
    font-size: 0.85rem;
    background: rgba(99, 102, 241, 0.15);
    color: var(--color-primary);
    padding: 4px 8px;
    border-radius: 4px;
    display: block;
    margin-bottom: 8px;
    white-space: nowrap;
}

.tool-item p { font-size: 0.88rem; color: var(--color-text); }

/* ===========================
   COMING SOON
=========================== */
.coming-soon {
    min-height: calc(100vh - 73px);
    display: flex;
    align-items: center;
    background: var(--color-bg);
}

.coming-soon-inner {
    text-align: center;
    padding: 80px 0;
}

.coming-soon h1 {
    font-family: var(--font-heading);
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 700;
    color: var(--color-text-strong);
    margin-bottom: 16px;
}

.coming-soon p {
    font-size: 1.05rem;
    color: var(--color-text);
    margin-bottom: 32px;
}

/* ===========================
   CASE STUDIES PAGE
=========================== */
.case-study-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    margin-bottom: 24px;
    transition: border-color var(--transition);
}

.case-study-card:hover { border-color: var(--color-primary); }

.case-study-header {
    padding: 36px 40px 24px;
    border-bottom: 1px solid var(--color-border);
}

.case-tag {
    display: inline-block;
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--color-primary);
    background: rgba(99, 102, 241, 0.1);
    padding: 4px 10px;
    border-radius: 4px;
    margin-bottom: 12px;
}

.case-study-header h2 {
    font-family: var(--font-heading);
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--color-text-strong);
    margin-bottom: 12px;
}

.case-meta {
    display: flex;
    gap: 20px;
    font-size: 0.85rem;
    color: var(--color-text-muted);
}

.case-meta i { color: var(--color-primary); margin-right: 5px; }

.case-body {
    padding: 36px 40px;
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 40px;
}

.case-section h3 {
    font-family: var(--font-heading);
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--color-label);
    margin-bottom: 10px;
}

.case-section p { font-size: 0.93rem; }

.outcome-stats {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.stat-num {
    display: block;
    font-family: var(--font-heading);
    font-size: 2rem;
    font-weight: 800;
    color: var(--color-primary);
    line-height: 1;
    margin-bottom: 4px;
}

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

/* ===========================
   ABOUT PAGE
=========================== */
.about-bio {
    display: grid;
    grid-template-columns: 220px 1fr;
    gap: 60px;
    align-items: start;
}

.about-photo {
    display: flex;
    flex-direction: column;
    gap: 16px;
    align-items: flex-start;
}

.about-role {
    display: flex;
    flex-direction: column;
    gap: 3px;
    padding: 14px 18px;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    width: 100%;
}

.about-role-title {
    font-family: var(--font-heading);
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--color-text-strong);
}

.about-role-company {
    font-size: 0.82rem;
    color: var(--color-primary);
}

.about-photo-img {
    width: 220px;
    height: 220px;
    object-fit: cover;
    object-position: center top;
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
}

.photo-placeholder-box {
    width: 220px;
    height: 220px;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
    color: var(--color-text-muted);
}

.about-text h2 {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--color-text-strong);
    margin-bottom: 20px;
}

.about-text p {
    margin-bottom: 16px;
    font-size: 1rem;
}

.philosophy-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.philosophy-item {
    padding: 32px 28px;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
}

.philosophy-item h3 {
    font-family: var(--font-heading);
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-text-strong);
    margin-bottom: 10px;
}

.philosophy-item p { font-size: 0.92rem; }

.bg-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.bg-item {
    padding: 28px;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
}

.bg-item h3 {
    font-family: var(--font-heading);
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--color-primary);
    letter-spacing: 0.06em;
    text-transform: uppercase;
    margin-bottom: 10px;
}

.bg-item p, .bg-item ul { font-size: 0.92rem; }

.bg-item ul { display: flex; flex-direction: column; gap: 6px; }

.bg-item ul li {
    padding-left: 16px;
    position: relative;
}

.bg-item ul li::before {
    content: '·';
    position: absolute;
    left: 4px;
    color: var(--color-primary);
}

/* ===========================
   CONTACT PAGE
=========================== */
.contact-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.contact-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 36px 28px;
    display: flex;
    flex-direction: column;
    gap: 20px;
    transition: border-color var(--transition), box-shadow var(--transition);
}

.contact-card:hover {
    border-color: var(--color-primary);
    box-shadow: 0 0 24px var(--color-glow);
}

.contact-card-icon {
    width: 52px;
    height: 52px;
    background: rgba(99, 102, 241, 0.1);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
}

.contact-card-icon i {
    font-size: 1.2rem;
    color: var(--color-primary);
}

.contact-card-body {
    display: flex;
    flex-direction: column;
    gap: 10px;
    flex: 1;
}

.contact-card-body h3 {
    font-family: var(--font-heading);
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--color-text-strong);
}

.contact-card-body p {
    font-size: 0.92rem;
    color: var(--color-text);
    line-height: 1.6;
    flex: 1;
}

.contact-card-action {
    align-self: flex-start;
    margin-top: 8px;
}

.contact-card-detail,
.contact-card-note {
    font-size: 0.82rem;
    color: var(--color-text-muted);
}

/* Light mode overrides */
body.light .contact-card {
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.06);
}

body.light .contact-card-icon {
    background: rgba(30, 64, 175, 0.07);
    border-color: rgba(30, 64, 175, 0.12);
}

body.light .contact-card-body h3 { color: #0f172a; }
.contact-layout {
    display: grid;
    grid-template-columns: 1fr 1.4fr;
    gap: 60px;
    align-items: start;
}

.contact-info-col h2 {
    font-family: var(--font-heading);
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--color-text-strong);
    margin-bottom: 28px;
}

.contact-items { display: flex; flex-direction: column; gap: 20px; }

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
}

.contact-item i {
    color: var(--color-primary);
    font-size: 1rem;
    margin-top: 3px;
    min-width: 18px;
}

.contact-item .contact-label {
    display: block;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--color-text-muted);
    margin-bottom: 3px;
}

.contact-item a,
.contact-item span {
    font-size: 0.97rem;
    color: var(--color-text);
    transition: color var(--transition);
}

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

.contact-note {
    margin-top: 32px;
    padding: 20px;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    font-size: 0.88rem;
    color: var(--color-text-muted);
}

.contact-form {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 40px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
    margin-bottom: 20px;
}

.form-group label {
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--color-text);
}

.form-group input,
.form-group textarea {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 12px 16px;
    font-family: var(--font-body);
    font-size: 0.95rem;
    color: var(--color-text-strong);
    transition: border-color var(--transition);
    outline: none;
    resize: vertical;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--color-text-muted);
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-glow);
}

.form-group textarea { min-height: 110px; }

.success-message {
    background: rgba(99, 102, 241, 0.1);
    border: 1px solid var(--color-primary);
    border-radius: var(--radius);
    padding: 20px 24px;
    color: var(--color-text-strong);
    font-size: 0.97rem;
    margin-bottom: 24px;
}

/* ===========================
   RESPONSIVE
=========================== */
@media (max-width: 960px) {
    .section { padding: 70px 0; }

    .pain-grid { grid-template-columns: repeat(2, 1fr); }
    .cards { grid-template-columns: repeat(2, 1fr); }
    .engagement-grid { grid-template-columns: repeat(2, 1fr); }
    .service-includes-grid { grid-template-columns: 1fr; }
    .when-grid { grid-template-columns: 1fr; }
    .service-block-header { flex-direction: column; gap: 16px; }
    .explainer-grid { grid-template-columns: repeat(2, 1fr); }
    .testing-categories { grid-template-columns: 1fr; }
    .metrics-grid { grid-template-columns: repeat(2, 1fr); }
    .tools-grid { grid-template-columns: repeat(2, 1fr); }
    .case-body { grid-template-columns: 1fr 1fr; }
    .philosophy-grid { grid-template-columns: repeat(2, 1fr); }
    .about-bio { grid-template-columns: 1fr; gap: 36px; }
    .contact-layout { grid-template-columns: 1fr; }
    .contact-cards { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
    .section { padding: 56px 0; }
    .hero { padding: 80px 0 64px; }

    .pain-grid { grid-template-columns: 1fr; }
    .cards { grid-template-columns: 1fr; }
    .engagement-grid { grid-template-columns: 1fr; }
    .service-includes-grid { grid-template-columns: 1fr; }
    .when-grid { grid-template-columns: 1fr; }
    .explainer-grid { grid-template-columns: 1fr; }
    .metrics-grid { grid-template-columns: 1fr 1fr; }
    .tools-grid { grid-template-columns: 1fr; }
    .case-body { grid-template-columns: 1fr; }
    .philosophy-grid { grid-template-columns: 1fr; }
    .bg-grid { grid-template-columns: 1fr; }

    .helps-item { padding: 24px 20px; gap: 20px; }

    .service-detail-inner { grid-template-columns: 1fr; }

    .nav-links {
        display: none;
        flex-direction: column;
        gap: 4px;
        width: 100%;
        padding: 16px 0 8px;
    }

    .nav-links.open { display: flex; }

    .nav-links a { padding: 8px 0; }

    .nav-cta {
        display: inline-block;
        width: fit-content;
        margin-top: 4px;
    }

    .nav-toggle { display: block; }

    .navbar .container { flex-wrap: wrap; }

    .cta-strip h2 { font-size: 1.5rem; }

    .contact-form { padding: 24px 20px; }
}