/* ═══════════════════════════════════════════════════════════
   Gray Volk — site-wide styles
   Used by index.html, services.html, approach.html, contact.html
   ═══════════════════════════════════════════════════════════ */

:root {
    --charcoal:       #0d1117;
    --charcoal-mid:   #161b22;
    --charcoal-light: #21262d;
    --blue-deep:      #0f2a5e;
    --blue-primary:   #1d4ed8;
    --blue-light:     #3b82f6;
    --green:          #16a34a;
    --green-light:    #22c55e;
    --amber:          #f59e0b;
    --orange:         #f97316;
    --red-light:      #f87171;
    --white:          #ffffff;
    --gray-100:       #f1f5f9;
    --gray-200:       #e2e8f0;
    --gray-300:       #cbd5e1;
    --gray-400:       #94a3b8;
    --gray-500:       #64748b;
    --gray-600:       #475569;
    --gray-700:       #334155;
    --gray-800:       #1e293b;
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'Roboto Mono', 'Courier New', monospace;
}

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    font-family: var(--font-sans);
    background: var(--charcoal);
    color: var(--white);
    min-height: 100vh;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }

/* ── Top bar ── */
.topbar {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(13,17,23,0.92);
    backdrop-filter: blur(14px);
    border-bottom: 1px solid rgba(255,255,255,0.06);
}
.topbar-inner {
    max-width: 1180px;
    margin: 0 auto;
    height: 68px;
    padding: 0 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;
}
.topbar-brand { display: flex; align-items: center; gap: 11px; }
.topbar-brand img { height: 38px; width: auto; display: block; }
.topbar-title { font-size: 15px; font-weight: 800; color: var(--white); letter-spacing: -0.01em; }
.topbar-title span { color: var(--blue-light); }

.nav-links { display: flex; align-items: center; gap: 2rem; }
.nav-link { font-size: 13.5px; font-weight: 500; color: var(--gray-300); transition: color 0.2s; }
.nav-link:hover { color: var(--white); }
.nav-link.active { color: var(--blue-light); }
.nav-cta {
    background: var(--blue-primary);
    color: var(--white);
    padding: 9px 18px;
    border-radius: 8px;
    font-size: 13px;
    font-weight: 600;
    border: 1px solid rgba(59,130,246,0.3);
    transition: all 0.2s;
    position: relative;
    overflow: visible;
}
.nav-cta:hover { background: var(--blue-light); transform: translateY(-1px); }
.nav-cta::before {
    content: '';
    position: absolute;
    top: -3px;
    right: -3px;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--green-light);
    box-shadow: 0 0 8px rgba(34,197,94,0.7);
    animation: nav-pulse 2.4s ease-in-out infinite;
}
@keyframes nav-pulse {
    0%, 100% { transform: scale(1);   opacity: 1;   }
    50%      { transform: scale(1.3); opacity: 0.6; }
}
.mobile-menu-btn {
    display: none;
    background: none;
    border: 1px solid rgba(255,255,255,0.1);
    color: var(--white);
    padding: 8px 12px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 14px;
}

/* ── Page wrap ── */
.page { max-width: 1180px; margin: 0 auto; padding: 0 2rem; }

/* ── Hero ── */
.hero {
    padding: 6rem 0 5rem;
    position: relative;
    overflow: hidden;
}
.hero::before {
    content: '';
    position: absolute;
    top: -200px;
    right: -200px;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(29,78,216,0.15), transparent 70%);
    pointer-events: none;
}
.hero-eyebrow {
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--blue-light);
    text-transform: uppercase;
    letter-spacing: 0.15em;
    margin-bottom: 1.2rem;
    display: flex;
    align-items: center;
    gap: 10px;
}
.hero-eyebrow::before { content: ''; width: 24px; height: 1px; background: var(--blue-light); }
.hero h1 {
    font-size: clamp(2.2rem, 5vw, 3.6rem);
    font-weight: 800;
    letter-spacing: -0.035em;
    line-height: 1.08;
    margin-bottom: 1.5rem;
    max-width: 880px;
}
.hero h1 .accent {
    background: linear-gradient(135deg, var(--blue-light), var(--blue-primary));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}
.hero p {
    font-size: 1.05rem;
    color: var(--gray-300);
    line-height: 1.75;
    max-width: 680px;
    margin-bottom: 2.5rem;
}
.hero-ctas { display: flex; gap: 1rem; flex-wrap: wrap; margin-bottom: 3rem; }

/* ── Buttons ── */
.btn-primary {
    background: var(--blue-primary);
    color: var(--white);
    padding: 14px 28px;
    border-radius: 9px;
    font-size: 14px;
    font-weight: 600;
    border: 1px solid rgba(59,130,246,0.35);
    cursor: pointer;
    font-family: var(--font-sans);
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: all 0.2s;
}
.btn-primary:hover { background: var(--blue-light); transform: translateY(-1px); }
.btn-primary:disabled { opacity: 0.45; cursor: not-allowed; transform: none; }
.btn-outline {
    background: transparent;
    color: var(--white);
    padding: 14px 28px;
    border-radius: 9px;
    font-size: 14px;
    font-weight: 600;
    border: 1px solid rgba(255,255,255,0.18);
    cursor: pointer;
    font-family: var(--font-sans);
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: all 0.2s;
}
.btn-outline:hover { background: rgba(255,255,255,0.05); border-color: rgba(255,255,255,0.35); }
.btn-ghost {
    background: transparent;
    color: var(--gray-400);
    padding: 12px 20px;
    border-radius: 8px;
    font-size: 13px;
    font-weight: 500;
    border: 1px solid rgba(255,255,255,0.1);
    cursor: pointer;
    font-family: var(--font-sans);
    transition: all 0.2s;
}
.btn-ghost:hover { color: var(--white); border-color: rgba(255,255,255,0.2); }

/* ── Klaviton-flavored button (external link to the product) ── */
.btn-klaviton {
    background: var(--green);
    color: var(--white);
    padding: 14px 28px;
    border-radius: 9px;
    font-size: 14px;
    font-weight: 600;
    border: 1px solid rgba(34,197,94,0.4);
    cursor: pointer;
    font-family: var(--font-sans);
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: all 0.2s;
    text-decoration: none;
    box-shadow: 0 0 0 0 rgba(34,197,94,0.4);
}
.btn-klaviton:hover {
    background: var(--green-light);
    transform: translateY(-1px);
    box-shadow: 0 0 0 6px rgba(34,197,94,0.12);
}

.hero-trust-row {
    display: flex;
    flex-wrap: wrap;
    gap: 2.5rem;
    padding-top: 2rem;
    border-top: 1px solid rgba(255,255,255,0.06);
}
.trust-item {
    font-size: 12px;
    color: var(--gray-400);
    font-family: var(--font-mono);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    display: flex;
    align-items: center;
    gap: 8px;
}
.trust-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--green-light);
    box-shadow: 0 0 12px rgba(34,197,94,0.5);
}

/* ── Section base ── */
.section { padding: 5rem 0; position: relative; }
.section-header { margin-bottom: 3rem; max-width: 720px; }
.section-header.wide { max-width: none; }
.section-eyebrow {
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--blue-light);
    text-transform: uppercase;
    letter-spacing: 0.15em;
    margin-bottom: 0.9rem;
    display: flex;
    align-items: center;
    gap: 10px;
}
.section-eyebrow::before { content: ''; width: 24px; height: 1px; background: var(--blue-light); }
.section-eyebrow.center { justify-content: center; }
.section-eyebrow.center::before { display: none; }
.section-title {
    font-size: clamp(1.7rem, 3vw, 2.4rem);
    font-weight: 800;
    letter-spacing: -0.03em;
    line-height: 1.15;
    margin-bottom: 1rem;
}
.section-title.center { text-align: center; }
.section-sub { font-size: 1rem; color: var(--gray-300); line-height: 1.75; }

/* ── Challenge section ── */
.challenge {
    background: linear-gradient(180deg, transparent, rgba(29,78,216,0.04));
    border-top: 1px solid rgba(255,255,255,0.05);
    border-bottom: 1px solid rgba(255,255,255,0.05);
}
.challenge-body p {
    font-size: 1.025rem;
    color: var(--gray-300);
    line-height: 1.85;
    margin-bottom: 1.1rem;
    max-width: 800px;
}
.challenge-body p:last-child { margin-bottom: 0; }
.challenge-body strong { color: var(--white); font-weight: 600; }
.challenge-callout {
    margin-top: 2rem;
    padding: 1.4rem 1.8rem;
    background: rgba(29,78,216,0.06);
    border-left: 3px solid var(--blue-light);
    border-radius: 8px;
    font-size: 0.975rem;
    color: var(--gray-200);
    max-width: 800px;
    line-height: 1.7;
}

/* ── Capabilities (4-column at desktop, collapses on smaller screens) ── */
.cap-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.25rem; }
.cap-card {
    background: var(--charcoal-mid);
    border: 1px solid rgba(255,255,255,0.07);
    border-radius: 14px;
    padding: 2rem;
    transition: all 0.25s;
}
.cap-card:hover { border-color: rgba(59,130,246,0.25); transform: translateY(-2px); }
.cap-icon {
    width: 48px; height: 48px;
    background: linear-gradient(135deg, rgba(29,78,216,0.15), rgba(15,42,94,0.25));
    border: 1px solid rgba(29,78,216,0.3);
    border-radius: 11px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    margin-bottom: 1.3rem;
}
.cap-card h3 { font-size: 1.075rem; font-weight: 700; margin-bottom: 0.7rem; letter-spacing: -0.01em; }
.cap-card p { font-size: 13.5px; color: var(--gray-400); line-height: 1.75; }
.cap-card .cap-tag {
    display: inline-block;
    margin-top: 1.2rem;
    font-family: var(--font-mono);
    font-size: 10.5px;
    color: var(--blue-light);
    background: rgba(29,78,216,0.08);
    border: 1px solid rgba(29,78,216,0.2);
    padding: 4px 11px;
    border-radius: 100px;
    letter-spacing: 0.07em;
    text-transform: uppercase;
}

/* ── Klaviton featured product ── */
.klaviton-feature {
    background: var(--charcoal-mid);
    border: 1px solid rgba(255,255,255,0.07);
    border-radius: 18px;
    padding: 3rem;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
    position: relative;
    overflow: hidden;
}
.klaviton-feature::before {
    content: '';
    position: absolute;
    top: -100px; right: -100px;
    width: 400px; height: 400px;
    background: radial-gradient(circle, rgba(34,197,94,0.07), transparent 70%);
    pointer-events: none;
}
.klaviton-label {
    font-family: var(--font-mono);
    font-size: 10.5px;
    color: var(--green-light);
    text-transform: uppercase;
    letter-spacing: 0.12em;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 8px;
}
.klaviton-label::before {
    content: '';
    width: 6px; height: 6px;
    border-radius: 50%;
    background: var(--green-light);
    box-shadow: 0 0 10px rgba(34,197,94,0.6);
    animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.4; } }
.klaviton-feature h2 {
    font-size: 1.85rem;
    font-weight: 800;
    letter-spacing: -0.025em;
    line-height: 1.15;
    margin-bottom: 1rem;
}
.klaviton-feature p {
    font-size: 14px;
    color: var(--gray-300);
    line-height: 1.75;
    margin-bottom: 1.2rem;
}
.klaviton-spec-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
    margin-bottom: 1.5rem;
}
.klaviton-spec-list li {
    font-size: 13px;
    color: var(--gray-300);
    display: flex;
    gap: 10px;
    line-height: 1.55;
}
.klaviton-spec-list li::before {
    content: '›';
    color: var(--green-light);
    font-family: var(--font-mono);
    font-weight: 700;
    flex-shrink: 0;
}
.klaviton-meta { display: flex; gap: 0.5rem; flex-wrap: wrap; margin-bottom: 1.5rem; }
.klaviton-meta-tag {
    font-family: var(--font-mono);
    font-size: 10.5px;
    color: var(--gray-300);
    background: rgba(255,255,255,0.04);
    border: 1px solid rgba(255,255,255,0.08);
    padding: 4px 10px;
    border-radius: 6px;
    letter-spacing: 0.05em;
}
.klaviton-stack-preview {
    background: var(--charcoal);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: 12px;
    padding: 1.5rem;
    font-family: var(--font-mono);
    font-size: 11.5px;
    line-height: 1.85;
    color: var(--gray-300);
    position: relative;
}
.klaviton-stack-preview::before {
    content: '● ● ●';
    display: block;
    color: var(--gray-700);
    font-size: 9px;
    letter-spacing: 4px;
    margin-bottom: 0.8rem;
    padding-bottom: 0.6rem;
    border-bottom: 1px solid rgba(255,255,255,0.06);
}
.klaviton-stack-preview .layer { display: flex; justify-content: space-between; align-items: center; padding: 4px 0; }
.klaviton-stack-preview .layer-name { color: var(--gray-300); }
.klaviton-stack-preview .layer-tag {
    color: var(--green-light);
    font-size: 10px;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}
.klaviton-stack-preview .arrow { text-align: center; color: var(--gray-700); font-size: 10px; padding: 1px 0; }

/* ── Trust / Why us ── */
.trust-section { background: linear-gradient(180deg, rgba(29,78,216,0.04), transparent); }
.trust-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
.trust-card {
    background: var(--charcoal-mid);
    border: 1px solid rgba(255,255,255,0.07);
    border-left: 3px solid var(--blue-light);
    border-radius: 12px;
    padding: 1.7rem;
}
.trust-card h4 { font-size: 0.95rem; font-weight: 700; margin-bottom: 0.6rem; color: var(--white); }
.trust-card p { font-size: 13px; color: var(--gray-400); line-height: 1.7; }

/* ── Demo modules ── */
.demo-section {
    background: linear-gradient(135deg, rgba(29,78,216,0.06), rgba(15,42,94,0.04));
    border: 1px solid rgba(29,78,216,0.18);
    border-radius: 16px;
    padding: 3rem;
    margin-top: 3rem;
    text-align: center;
}
.demo-section h3 { font-size: 1.4rem; font-weight: 800; letter-spacing: -0.02em; margin-bottom: 0.7rem; }
.demo-section p {
    font-size: 14px;
    color: var(--gray-300);
    margin-bottom: 1.8rem;
    max-width: 580px;
    margin-left: auto;
    margin-right: auto;
}
.demo-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem; }
.demo-tile {
    background: rgba(0,0,0,0.25);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: 10px;
    padding: 1.1rem;
    transition: all 0.2s;
    text-align: left;
}
.demo-tile:hover { border-color: rgba(59,130,246,0.35); transform: translateY(-2px); }
.demo-tile-icon { font-size: 18px; margin-bottom: 0.5rem; display: block; }
.demo-tile-name { font-size: 12.5px; font-weight: 700; margin-bottom: 0.2rem; color: var(--white); }
.demo-tile-desc { font-size: 11px; color: var(--gray-400); line-height: 1.45; }

/* ── AI Advisor promo (home page) ── */
.advisor-promo {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
    background: linear-gradient(135deg, rgba(29,78,216,0.07), rgba(15,42,94,0.04));
    border: 1px solid rgba(29,78,216,0.22);
    border-radius: 18px;
    padding: 3rem;
    position: relative;
    overflow: hidden;
}
.advisor-promo::before {
    content: '';
    position: absolute;
    top: -120px; right: -120px;
    width: 420px; height: 420px;
    background: radial-gradient(circle, rgba(59,130,246,0.10), transparent 65%);
    pointer-events: none;
}
.advisor-promo-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.9rem;
    margin-bottom: 1.8rem;
}
.advisor-promo-list li {
    font-size: 13.5px;
    color: var(--gray-300);
    line-height: 1.7;
    display: flex;
    gap: 12px;
}
.advisor-promo-list li::before {
    content: '→';
    color: var(--blue-light);
    font-family: var(--font-mono);
    font-weight: 700;
    flex-shrink: 0;
    margin-top: 1px;
}
.advisor-promo-list strong { color: var(--white); }
.advisor-promo-cta { margin-bottom: 1rem; }
.advisor-promo-fallback {
    font-size: 12.5px;
    color: var(--gray-500);
    margin-top: 0.4rem;
}
.advisor-promo-fallback a {
    color: var(--gray-300);
    text-decoration: underline;
    text-decoration-color: rgba(148,163,184,0.3);
    text-underline-offset: 3px;
}
.advisor-promo-fallback a:hover { color: var(--blue-light); }

/* ── Chat mockup ── */
.chat-mockup {
    background: var(--charcoal);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 14px;
    overflow: hidden;
    display: grid;
    grid-template-columns: 1fr 140px;
    grid-template-rows: auto 1fr;
    box-shadow: 0 25px 60px rgba(0,0,0,0.4);
    min-height: 360px;
}
.chat-mockup-bar {
    grid-column: 1 / -1;
    display: flex;
    align-items: center;
    gap: 7px;
    padding: 10px 14px;
    background: var(--charcoal-mid);
    border-bottom: 1px solid rgba(255,255,255,0.06);
}
.chat-mockup-dot {
    width: 9px; height: 9px;
    border-radius: 50%;
    background: rgba(255,255,255,0.12);
}
.chat-mockup-dot:nth-child(1) { background: #ef4444; }
.chat-mockup-dot:nth-child(2) { background: #f59e0b; }
.chat-mockup-dot:nth-child(3) { background: #22c55e; }
.chat-mockup-title {
    margin-left: 10px;
    font-family: var(--font-mono);
    font-size: 10.5px;
    color: var(--gray-400);
    letter-spacing: 0.08em;
    text-transform: uppercase;
}
.chat-mockup-stream {
    padding: 1.1rem 1.2rem;
    display: flex;
    flex-direction: column;
    gap: 0.65rem;
    overflow: hidden;
}
.chat-mockup-msg {
    padding: 7px 11px;
    border-radius: 9px;
    font-size: 12.5px;
    line-height: 1.55;
    max-width: 90%;
}
.chat-mockup-msg.ai {
    background: rgba(0,0,0,0.25);
    border: 1px solid rgba(255,255,255,0.06);
    color: var(--gray-200);
    align-self: flex-start;
}
.chat-mockup-msg.user {
    background: rgba(29,78,216,0.18);
    border: 1px solid rgba(29,78,216,0.3);
    color: var(--white);
    align-self: flex-end;
}
.chat-mockup-thinking {
    display: flex;
    gap: 4px;
    padding: 9px 13px;
}
.chat-mockup-thinking span {
    font-size: 8px;
    color: var(--gray-500);
    animation: thinking-pulse 1.4s ease-in-out infinite;
}
.chat-mockup-thinking span:nth-child(2) { animation-delay: 0.2s; }
.chat-mockup-thinking span:nth-child(3) { animation-delay: 0.4s; }
@keyframes thinking-pulse {
    0%, 80%, 100% { opacity: 0.25; }
    40%           { opacity: 1; }
}
.chat-mockup-sidebar {
    background: var(--charcoal-mid);
    border-left: 1px solid rgba(255,255,255,0.06);
    padding: 1rem 0.9rem;
    display: flex;
    flex-direction: column;
    gap: 0.55rem;
}
.chat-mockup-sidebar-label {
    font-family: var(--font-mono);
    font-size: 9px;
    color: var(--blue-light);
    text-transform: uppercase;
    letter-spacing: 0.12em;
    padding-bottom: 0.55rem;
    border-bottom: 1px solid rgba(255,255,255,0.06);
    margin-bottom: 0.2rem;
}
.chat-mockup-row {
    display: flex;
    justify-content: space-between;
    font-family: var(--font-mono);
    font-size: 10px;
    color: var(--gray-600);
}
.chat-mockup-row.filled { color: var(--gray-200); }
.chat-mockup-row.filled span:last-child { color: var(--green-light); }

/* ── Pillar (services) ── */
.pillar {
    background: var(--charcoal-mid);
    border: 1px solid rgba(255,255,255,0.07);
    border-radius: 16px;
    padding: 2.5rem;
    margin-bottom: 1.5rem;
    position: relative;
    overflow: hidden;
}
.pillar.featured {
    border-color: rgba(34,197,94,0.25);
    background: linear-gradient(135deg, rgba(34,197,94,0.04), var(--charcoal-mid));
}
.pillar-number {
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--blue-light);
    letter-spacing: 0.18em;
    margin-bottom: 0.7rem;
    text-transform: uppercase;
}
.pillar.featured .pillar-number { color: var(--green-light); }
.pillar h2 {
    font-size: 1.6rem;
    font-weight: 800;
    letter-spacing: -0.025em;
    margin-bottom: 0.8rem;
    line-height: 1.2;
}
.pillar-lead {
    font-size: 1rem;
    color: var(--gray-300);
    line-height: 1.7;
    margin-bottom: 2rem;
    max-width: 760px;
}
.pillar-areas { display: grid; grid-template-columns: 1fr; gap: 1.2rem; }
.pillar-area {
    background: rgba(0,0,0,0.2);
    border: 1px solid rgba(255,255,255,0.05);
    border-radius: 11px;
    padding: 1.3rem 1.5rem;
}
.pillar-area-title {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    gap: 8px;
}
.pillar-area-title::before {
    content: '◆';
    color: var(--blue-light);
    font-size: 9px;
}
.pillar.featured .pillar-area-title::before { color: var(--green-light); }
.pillar-area p { font-size: 13px; color: var(--gray-300); line-height: 1.7; }

/* ── Approach ── */
.philosophy {
    background: var(--charcoal-mid);
    border: 1px solid rgba(255,255,255,0.07);
    border-radius: 16px;
    padding: 2.5rem;
}
.philosophy p {
    font-size: 1.05rem;
    color: var(--gray-300);
    line-height: 1.85;
    margin-bottom: 1.3rem;
    max-width: 820px;
}
.philosophy p:last-child { margin-bottom: 0; }
.philosophy strong { color: var(--white); font-weight: 600; }
.philosophy em {
    font-style: normal;
    color: var(--blue-light);
}

.approach-pillar-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
.approach-pillar {
    background: var(--charcoal-mid);
    border: 1px solid rgba(255,255,255,0.07);
    border-radius: 14px;
    padding: 2rem;
}
.approach-pillar-num {
    font-family: var(--font-mono);
    font-size: 28px;
    font-weight: 800;
    color: var(--blue-light);
    line-height: 1;
    margin-bottom: 1rem;
    opacity: 0.4;
}
.approach-pillar h3 {
    font-size: 1.05rem;
    font-weight: 700;
    margin-bottom: 0.7rem;
    letter-spacing: -0.01em;
}
.approach-pillar p { font-size: 13.5px; color: var(--gray-300); line-height: 1.75; }

/* ── Contact form ── */
.contact-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 3rem;
    margin-top: 2rem;
}
.form-wrap {
    background: var(--charcoal-mid);
    border: 1px solid rgba(255,255,255,0.07);
    border-radius: 16px;
    padding: 2.5rem;
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.form-group { margin-bottom: 1.4rem; }
.form-group.full { grid-column: 1 / -1; }
.form-label {
    font-size: 12.5px;
    font-weight: 600;
    color: var(--white);
    margin-bottom: 0.5rem;
    display: block;
}
.form-label .required { color: var(--blue-light); }
.form-input, .form-select, .form-textarea {
    width: 100%;
    background: var(--charcoal);
    border: 1px solid rgba(255,255,255,0.1);
    color: var(--white);
    padding: 11px 14px;
    border-radius: 8px;
    font-size: 13.5px;
    font-family: var(--font-sans);
    transition: border-color 0.2s, background 0.2s;
}
.form-input:focus, .form-select:focus, .form-textarea:focus {
    outline: none;
    border-color: var(--blue-light);
    background: rgba(13,17,23,0.9);
}
.form-textarea { resize: vertical; min-height: 110px; line-height: 1.6; }
.form-select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%2394a3b8' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 14px center;
    cursor: pointer;
    padding-right: 36px;
}
.form-select option { background: var(--charcoal-mid); }

.contact-side {
    display: flex;
    flex-direction: column;
    gap: 1.2rem;
}
.side-card {
    background: var(--charcoal-mid);
    border: 1px solid rgba(255,255,255,0.07);
    border-radius: 13px;
    padding: 1.5rem 1.7rem;
}
.side-card .side-label {
    font-family: var(--font-mono);
    font-size: 10px;
    color: var(--blue-light);
    text-transform: uppercase;
    letter-spacing: 0.12em;
    margin-bottom: 0.5rem;
}
.side-card .side-content {
    font-size: 14px;
    color: var(--white);
    line-height: 1.55;
    font-weight: 500;
}
.side-card .side-sub {
    font-size: 12.5px;
    color: var(--gray-400);
    margin-top: 0.3rem;
    line-height: 1.55;
}
.side-card a { color: var(--blue-light); }
.side-card a:hover { color: var(--white); }

.form-success {
    display: none;
    background: rgba(34,197,94,0.08);
    border: 1px solid rgba(34,197,94,0.3);
    border-radius: 11px;
    padding: 2rem;
    text-align: center;
    color: var(--green-light);
}
.form-success.active { display: block; }
.form-success .icon { font-size: 32px; margin-bottom: 0.6rem; display: block; }
.form-success h3 { font-size: 1.2rem; font-weight: 800; margin-bottom: 0.5rem; color: var(--white); }
.form-success p { font-size: 14px; color: var(--gray-300); line-height: 1.65; }

/* ── Final CTA ── */
.final-cta-wrap { text-align: center; max-width: 720px; margin: 0 auto; }

/* ── Footer ── */
footer {
    border-top: 1px solid rgba(255,255,255,0.06);
    margin-top: 4rem;
    padding: 2.5rem 0;
}
.footer-inner {
    max-width: 1180px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1.5rem;
}
.footer-brand { display: flex; align-items: center; gap: 10px; }
.footer-brand img { height: 28px; width: auto; }
.footer-brand-text { font-size: 12.5px; color: var(--gray-400); }
.footer-brand-text strong { color: var(--gray-200); }
.footer-links { display: flex; gap: 2rem; font-size: 12.5px; color: var(--gray-400); }
.footer-links a:hover { color: var(--white); }

/* ── Responsive ── */
@media (max-width: 900px) {
    .nav-links { display: none; }
    .mobile-menu-btn { display: block; }
    .nav-links.open {
        display: flex;
        position: absolute;
        top: 68px;
        right: 0;
        left: 0;
        background: var(--charcoal-mid);
        flex-direction: column;
        padding: 1.5rem 2rem;
        gap: 1.2rem;
        border-bottom: 1px solid rgba(255,255,255,0.08);
    }
    .cap-grid { grid-template-columns: repeat(2, 1fr); gap: 1rem; }
    .trust-grid { grid-template-columns: 1fr; }
    .approach-pillar-grid { grid-template-columns: 1fr; }
    .klaviton-feature { grid-template-columns: 1fr; padding: 2rem; gap: 2rem; }
    .advisor-promo    { grid-template-columns: 1fr; padding: 2rem; gap: 2rem; }
    .chat-mockup      { min-height: 320px; }
    .demo-grid { grid-template-columns: repeat(2, 1fr); }
    .contact-grid { grid-template-columns: 1fr; gap: 2rem; }
    .form-row { grid-template-columns: 1fr; }
    .form-wrap, .philosophy, .pillar { padding: 1.8rem; }
    .page { padding: 0 1.25rem; }
    .hero { padding: 4rem 0 3rem; }
    .section { padding: 3.5rem 0; }
    .demo-section { padding: 2rem; }
}
@media (max-width: 560px) {
    .cap-grid { grid-template-columns: 1fr; }
}