/* ===== VARIABLES & RESET ===== */
:root {
    --navy: #1F5480;
    --blue: #1F5480;
    --teal: #41B9AF;
    --teal-dark: #2E9A92;
    --mid: #308798;
    --bg-light: #EFF6F8;
    --text-gray: #3A5468;
    --white: #ffffff;
    --border: #C8DCE8;
    --shadow: 0 2px 16px rgba(31, 84, 128, 0.10);
    --shadow-hover: 0 6px 28px rgba(31, 84, 128, 0.18);
    --radius: 10px;
    --transition: 0.22s ease;
    --logo-gradient: linear-gradient(135deg, #41B9AF 0%, #1F5480 100%);
    --logo-gradient-h: linear-gradient(90deg, #41B9AF 0%, #1F5480 100%);
    --navy-dark: #163D5E;
    --teal-bg: rgba(65, 185, 175, 0.10);
    --teal-border: rgba(65, 185, 175, 0.28);
    --blue-bg: rgba(31, 84, 128, 0.08);
    --blue-border: rgba(31, 84, 128, 0.22);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    color: var(--navy);
    background: var(--white);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

a { color: var(--blue); text-decoration: none; }
a:hover { color: var(--navy); }

img { max-width: 100%; }

/* ===== TYPOGRAPHY ===== */
h1, h2, h3, h4 { line-height: 1.25; font-weight: 700; color: var(--navy); }
h1 { font-size: clamp(2rem, 4vw, 3rem); }
h2 { font-size: clamp(1.5rem, 3vw, 2.1rem); margin-bottom: 1rem; }
h3 { font-size: 1.1rem; margin-bottom: 0.5rem; }
p { color: var(--text-gray); margin-bottom: 1rem; }
p:last-child { margin-bottom: 0; }

/* ===== LAYOUT ===== */
.container {
    max-width: 1140px;
    margin: 0 auto;
    padding: 0 24px;
}

section { padding: 88px 0; }
section:nth-child(even) { background: var(--bg-light); }

.section-label {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--teal);
    margin-bottom: 0.75rem;
}

.section-title {
    font-size: clamp(1.4rem, 2.5vw, 1.9rem);
    color: var(--navy);
    margin-bottom: 1.25rem;
    max-width: 700px;
}

.section-intro {
    font-size: 1.05rem;
    color: var(--text-gray);
    max-width: 680px;
    margin-bottom: 2.5rem;
}

/* ===== NAVIGATION ===== */
.nav {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(255,255,255,0.97);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid var(--border);
    padding: 0 24px;
}

.nav-inner {
    max-width: 1140px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 800;
    font-size: 1.2rem;
    color: var(--navy);
    text-decoration: none;
    letter-spacing: -0.02em;
}

.nav-logo-mark {
    height: 36px;
    width: auto;
    display: block;
    flex-shrink: 0;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 2rem;
    list-style: none;
}

.nav-links a {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-gray);
    transition: color var(--transition);
}

.nav-links a:hover { color: var(--navy); }

.nav-cta {
    background: var(--logo-gradient);
    color: var(--white) !important;
    padding: 8px 20px;
    border-radius: 6px;
    font-weight: 600 !important;
    transition: opacity var(--transition) !important;
}

.nav-cta:hover { opacity: 0.85; }

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 4px;
    background: none;
    border: none;
}

.nav-toggle span {
    width: 24px;
    height: 2px;
    background: var(--navy);
    border-radius: 2px;
    transition: var(--transition);
    display: block;
}

/* ===== HERO ===== */
#hero {
    padding: 96px 0 80px;
    background: linear-gradient(160deg, #E8F4F3 0%, var(--white) 55%);
    overflow: hidden;
}

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

.hero-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--teal-bg);
    border: 1px solid var(--teal-border);
    color: var(--navy);
    font-size: 0.8rem;
    font-weight: 600;
    padding: 5px 14px;
    border-radius: 100px;
    margin-bottom: 1.25rem;
}

.hero-eyebrow::before {
    content: '';
    width: 6px;
    height: 6px;
    background: var(--teal);
    border-radius: 50%;
    display: block;
}

.hero-title {
    font-size: clamp(2rem, 3.5vw, 2.9rem);
    letter-spacing: -0.02em;
    margin-bottom: 1.25rem;
    line-height: 1.2;
}

.hero-title span { color: var(--blue); }

.hero-subtitle {
    font-size: 1.1rem;
    color: var(--text-gray);
    margin-bottom: 2rem;
    line-height: 1.7;
}

.hero-actions {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    margin-bottom: 2rem;
}

.btn-primary {
    background: var(--logo-gradient);
    color: var(--white);
    padding: 13px 28px;
    border-radius: 7px;
    font-weight: 600;
    font-size: 0.95rem;
    transition: opacity var(--transition), transform var(--transition);
    display: inline-block;
}

.btn-primary:hover {
    opacity: 0.88;
    color: var(--white);
    transform: translateY(-1px);
}

.btn-secondary {
    background: transparent;
    color: var(--navy);
    padding: 13px 28px;
    border-radius: 7px;
    font-weight: 600;
    font-size: 0.95rem;
    border: 1.5px solid var(--border);
    transition: border-color var(--transition), background var(--transition);
    display: inline-block;
}

.btn-secondary:hover {
    border-color: var(--teal);
    color: var(--navy);
    background: var(--teal-bg);
}

.hero-trust {
    font-size: 0.82rem;
    color: #8A9BAB;
    display: flex;
    align-items: center;
    gap: 8px;
}

.hero-trust::before {
    content: '';
    width: 20px;
    height: 2px;
    background: var(--teal);
    display: block;
    border-radius: 2px;
    flex-shrink: 0;
}

/* ===== HERO DIAGRAM ===== */
.hero-diagram {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 28px 24px;
    box-shadow: var(--shadow);
    position: relative;
}

.diagram-title {
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: #8A9BAB;
    margin-bottom: 20px;
    text-align: center;
}

.diagram-flow {
    display: flex;
    flex-direction: column;
    gap: 0;
}

.diagram-row {
    display: flex;
    gap: 6px;
    justify-content: center;
    flex-wrap: wrap;
}

.diagram-layer {
    text-align: center;
    padding: 14px 0 10px;
}

.diagram-arrow {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 4px 0;
}

.diagram-arrow svg {
    color: var(--teal);
    opacity: 0.7;
}

.d-chip {
    background: var(--bg-light);
    border: 1px solid var(--border);
    border-radius: 7px;
    padding: 7px 12px;
    font-size: 0.78rem;
    font-weight: 500;
    color: var(--text-gray);
    white-space: nowrap;
}

.d-chip.blue {
    background: var(--blue-bg);
    border-color: var(--blue-border);
    color: var(--navy);
    font-weight: 600;
}

.d-chip.teal {
    background: var(--teal-bg);
    border-color: var(--teal-border);
    color: var(--teal-dark);
    font-weight: 600;
}

.d-chip.navy {
    background: var(--navy);
    border-color: var(--navy);
    color: white;
    font-weight: 600;
}

.diagram-layer-label {
    font-size: 0.7rem;
    color: #8A9BAB;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    margin-bottom: 8px;
}

/* ===== PROBLEM SECTION ===== */
.problem-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.25rem;
    margin-top: 2.5rem;
}

.problem-card {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px;
    transition: box-shadow var(--transition), transform var(--transition);
}

.problem-card:hover {
    box-shadow: var(--shadow-hover);
    transform: translateY(-2px);
}

.card-icon {
    width: 40px;
    height: 40px;
    border-radius: 9px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 14px;
}

.card-icon.red { background: rgba(235, 87, 87, 0.1); color: #c0392b; }
.card-icon.amber { background: rgba(242, 153, 74, 0.1); color: #e07b1a; }
.card-icon.blue-light { background: var(--blue-bg); color: var(--navy); }

.problem-card h3 { font-size: 1rem; }
.problem-card p { font-size: 0.9rem; }

/* ===== SOLUTION SECTION ===== */
.solution-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: start;
}

.solution-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.solution-card {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px;
    transition: box-shadow var(--transition), border-color var(--transition);
}

.solution-card:hover {
    box-shadow: var(--shadow);
    border-color: var(--teal-border);
}

.solution-card .card-icon {
    background: var(--teal-bg);
    color: var(--teal-dark);
}

.solution-card h3 { font-size: 0.95rem; color: var(--navy); }

/* ===== PROCESS SECTION ===== */
.process-steps {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 0;
    margin-top: 2.5rem;
    position: relative;
}

.process-steps::before {
    content: '';
    position: absolute;
    top: 28px;
    left: 10%;
    right: 10%;
    height: 2px;
    background: var(--logo-gradient);
    z-index: 0;
}

.process-step {
    text-align: center;
    padding: 0 12px;
    position: relative;
    z-index: 1;
}

.step-number {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: var(--white);
    border: 2px solid var(--blue);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 16px;
    font-weight: 800;
    font-size: 1rem;
    color: var(--blue);
    position: relative;
    z-index: 2;
    transition: background var(--transition), color var(--transition);
}

.process-step:hover .step-number {
    background: var(--blue);
    color: var(--white);
}

.step-title {
    font-weight: 700;
    font-size: 0.95rem;
    color: var(--navy);
    margin-bottom: 8px;
}

.step-desc {
    font-size: 0.82rem;
    color: var(--text-gray);
    line-height: 1.5;
}

/* ===== USE CASES ===== */
.usecase-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.25rem;
    margin-top: 2.5rem;
}

.usecase-card {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 28px 24px;
    transition: box-shadow var(--transition), transform var(--transition), border-color var(--transition);
    position: relative;
    overflow: hidden;
}

.usecase-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--logo-gradient);
    opacity: 0;
    transition: opacity var(--transition);
}

.usecase-card:hover {
    box-shadow: var(--shadow-hover);
    transform: translateY(-3px);
    border-color: var(--teal-border);
}

.usecase-card:hover::before { opacity: 1; }

.usecase-icon {
    width: 44px;
    height: 44px;
    border-radius: 10px;
    background: var(--teal-bg);
    color: var(--teal-dark);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 16px;
}

.usecase-card h3 { font-size: 1rem; margin-bottom: 10px; }
.usecase-card p { font-size: 0.88rem; line-height: 1.6; }

/* ===== ONTOLOGY SECTION ===== */
.ontology-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: start;
}

.comparison-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    margin-top: 1.5rem;
}

.comparison-table thead tr {
    background: var(--navy);
    color: white;
}

.comparison-table thead th {
    padding: 14px 20px;
    font-size: 0.85rem;
    font-weight: 700;
    text-align: left;
}

.comparison-table thead th:first-child { color: #8A9BAB; }
.comparison-table thead th:last-child { color: var(--teal); }

.comparison-table tbody tr { background: var(--white); }
.comparison-table tbody tr:nth-child(even) { background: var(--bg-light); }

.comparison-table tbody td {
    padding: 12px 20px;
    font-size: 0.875rem;
    border-bottom: 1px solid var(--border);
    vertical-align: middle;
}

.comparison-table tbody td:first-child { color: var(--text-gray); }
.comparison-table tbody td:last-child { color: var(--navy); font-weight: 600; }

.check-icon { color: var(--teal); font-weight: 900; margin-right: 6px; }
.cross-icon { color: #ccd1d5; margin-right: 6px; }

/* ===== TECHNOLOGY SECTION ===== */
.tech-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
    margin-top: 2.5rem;
}

.tech-card {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px;
    text-align: center;
    transition: box-shadow var(--transition), border-color var(--transition);
}

.tech-card:hover {
    box-shadow: var(--shadow);
    border-color: var(--blue-border);
}

.tech-icon {
    width: 48px;
    height: 48px;
    border-radius: 10px;
    background: var(--blue-bg);
    color: var(--navy);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 12px;
}

.tech-card h3 { font-size: 0.9rem; font-weight: 700; }

.tech-note {
    margin-top: 2rem;
    padding: 16px 20px;
    background: var(--teal-bg);
    border: 1px solid var(--teal-border);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 0.875rem;
    color: var(--text-gray);
}

.tech-note-icon {
    width: 32px;
    height: 32px;
    border-radius: 8px;
    background: rgba(65, 185, 175, 0.20);
    color: var(--teal-dark);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

/* ===== BENEFITS SECTION ===== */
.benefits-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
    margin-top: 2.5rem;
}

.benefit-card {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 22px 20px;
    transition: box-shadow var(--transition), border-color var(--transition);
}

.benefit-card:hover {
    box-shadow: var(--shadow);
    border-color: var(--teal-border);
}

.benefit-dot {
    width: 8px;
    height: 8px;
    background: var(--teal);
    border-radius: 50%;
    margin-bottom: 12px;
}

.benefit-card h3 { font-size: 0.92rem; font-weight: 700; }
.benefit-card p { font-size: 0.84rem; }

/* ===== CTA SECTION ===== */
#contact {
    background: var(--navy);
    padding: 88px 0;
}

#contact .section-label { color: var(--teal); }
#contact .section-title { color: var(--white); max-width: 640px; }
#contact p { color: rgba(255,255,255,0.65); max-width: 560px; margin-bottom: 2.5rem; }

.contact-block {
    display: flex;
    gap: 2rem;
    align-items: flex-start;
    flex-wrap: wrap;
}

.cta-btn-primary {
    background: var(--teal);
    color: var(--navy);
    padding: 14px 32px;
    border-radius: 7px;
    font-weight: 700;
    font-size: 1rem;
    transition: background var(--transition), transform var(--transition);
    display: inline-block;
}

.cta-btn-primary:hover {
    background: var(--teal-dark);
    color: var(--white);
    transform: translateY(-2px);
}

.contact-email {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.95rem;
    color: rgba(255,255,255,0.55);
    padding: 14px 0;
}

.contact-email a {
    color: rgba(255,255,255,0.85);
    font-weight: 600;
    transition: color var(--transition);
}

.contact-email a:hover { color: var(--teal); }

/* ===== FOOTER ===== */
footer {
    background: #122F49;
    padding: 40px 0;
    border-top: 1px solid rgba(65,185,175,0.12);
}

.footer-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 1.5rem;
}

.footer-brand {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.footer-logo-img { height: 32px; width: auto; max-width: none; object-fit: contain; opacity: 0.85; filter: brightness(0) invert(1); display: block; }
.footer-tagline { color: rgba(255,255,255,0.35); font-size: 0.8rem; }

.footer-links {
    display: flex;
    gap: 2rem;
    list-style: none;
}

.footer-links a {
    color: rgba(255,255,255,0.45);
    font-size: 0.85rem;
    transition: color var(--transition);
}

.footer-links a:hover { color: rgba(255,255,255,0.85); }

.footer-copy {
    color: rgba(255,255,255,0.3);
    font-size: 0.78rem;
    width: 100%;
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid rgba(255,255,255,0.06);
}

/* ===== MOBILE NAV ===== */
@media (max-width: 900px) {
    .nav-links { display: none; }
    .nav-links.open {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 64px;
        left: 0;
        right: 0;
        background: white;
        border-bottom: 1px solid var(--border);
        padding: 16px 24px 20px;
        gap: 1rem;
        box-shadow: 0 8px 24px rgba(0,0,0,0.08);
    }
    .nav-toggle { display: flex; }
    .nav { position: relative; }
}

@media (max-width: 900px) {
    .hero-grid { grid-template-columns: 1fr; }
    .hero-diagram { margin-top: 2rem; }
    .problem-grid { grid-template-columns: 1fr 1fr; }
    .solution-layout { grid-template-columns: 1fr; gap: 2rem; }
    .process-steps { grid-template-columns: 1fr 1fr; gap: 2rem; }
    .process-steps::before { display: none; }
    .usecase-grid { grid-template-columns: 1fr 1fr; }
    .ontology-layout { grid-template-columns: 1fr; gap: 2rem; }
    .tech-grid { grid-template-columns: repeat(2, 1fr); }
    .benefits-grid { grid-template-columns: repeat(2, 1fr); }
    .contact-block { flex-direction: column; }
}

@media (max-width: 560px) {
    section { padding: 60px 0; }
    .problem-grid { grid-template-columns: 1fr; }
    .process-steps { grid-template-columns: 1fr; }
    .usecase-grid { grid-template-columns: 1fr; }
    .tech-grid { grid-template-columns: 1fr 1fr; }
    .benefits-grid { grid-template-columns: 1fr 1fr; }
    .footer-inner { flex-direction: column; }
    .footer-links { flex-wrap: wrap; gap: 1rem; }
}

/* ===== INSIGHTS ===== */
.nav-active { color: var(--navy) !important; font-weight: 700 !important; }

.insights-hero {
    background: linear-gradient(160deg, #E8F4F3 0%, var(--white) 60%);
    padding: 72px 0 48px;
    border-bottom: 1px solid var(--border);
}
.insights-hero-title {
    font-size: clamp(2rem, 4vw, 3rem);
    letter-spacing: -0.02em;
    margin: 0.25rem 0 1rem;
}
.insights-hero-sub {
    font-size: 1.05rem;
    color: var(--text-gray);
    max-width: 640px;
    line-height: 1.7;
    margin: 0;
}

.insights-filter-bar {
    background: var(--white);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 64px;
    z-index: 100;
    padding: 12px 0;
}
.insights-filters {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    align-items: center;
}
.filter-btn {
    display: inline-block;
    padding: 6px 16px;
    border-radius: 100px;
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--text-gray);
    background: var(--bg-light);
    border: 1px solid var(--border);
    transition: background var(--transition), color var(--transition), border-color var(--transition);
    white-space: nowrap;
}
.filter-btn:hover { background: var(--teal-bg); border-color: var(--teal-border); color: var(--navy); }
.filter-btn.active { background: var(--navy); border-color: var(--navy); color: var(--white); }

.insights-section { padding: 64px 0 88px; background: var(--white); }

.insights-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.insight-card {
    display: flex;
    flex-direction: column;
    border: 1px solid var(--border);
    border-radius: 12px;
    overflow: hidden;
    background: var(--white);
    color: inherit;
    text-decoration: none;
    transition: box-shadow var(--transition), transform var(--transition);
}
.insight-card:hover {
    box-shadow: var(--shadow-hover);
    transform: translateY(-3px);
    color: inherit;
}

.insight-card-img {
    position: relative;
    height: 200px;
    overflow: hidden;
    flex-shrink: 0;
    background: var(--bg-light);
}
.insight-card-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
    display: block;
}
.insight-card:hover .insight-card-img img { transform: scale(1.04); }

.insight-category {
    position: absolute;
    bottom: 10px;
    left: 12px;
    background: var(--navy);
    color: var(--white);
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    padding: 4px 10px;
    border-radius: 100px;
}

.insight-card-body {
    display: flex;
    flex-direction: column;
    flex: 1;
    padding: 20px;
    gap: 8px;
}
.insight-card-title {
    font-size: 1rem;
    font-weight: 700;
    color: var(--navy);
    line-height: 1.3;
    margin: 0;
}
.insight-card-summary {
    font-size: 0.85rem;
    color: var(--text-gray);
    line-height: 1.55;
    flex: 1;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
    margin: 0;
}
.insight-card-meta {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.78rem;
    color: #8A9BAB;
    margin-top: 4px;
}
.insight-meta-sep { color: #C8DCE8; }
.insight-meta-read { color: var(--teal-dark); font-weight: 600; }

/* ===== ARTICLE DETAIL ===== */
.article-hero-img {
    position: relative;
    height: 420px;
    overflow: hidden;
    background: var(--navy);
}
.article-hero-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.75;
}
.article-hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to bottom, transparent 40%, rgba(20,50,78,0.6) 100%);
}

.article-breadcrumb {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.85rem;
    color: var(--text-gray);
    padding: 24px 0 0;
}
.article-breadcrumb a { color: var(--teal-dark); font-weight: 600; }
.article-breadcrumb a:hover { color: var(--navy); }
.article-breadcrumb span:last-child { color: #8A9BAB; }

.article-header {
    max-width: 780px;
    padding: 24px 0 32px;
    border-bottom: 1px solid var(--border);
    margin-bottom: 40px;
}
.article-header .insight-category {
    position: static;
    display: inline-block;
    margin-bottom: 12px;
    border-radius: 100px;
}
.article-title {
    font-size: clamp(1.6rem, 3vw, 2.3rem);
    letter-spacing: -0.02em;
    line-height: 1.2;
    margin: 0 0 12px;
}
.article-meta {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.85rem;
    color: #8A9BAB;
    margin-bottom: 16px;
}
.article-lead {
    font-size: 1.08rem;
    color: var(--text-gray);
    line-height: 1.7;
    margin: 0;
    font-style: italic;
}

.article-body {
    max-width: 780px;
    padding-bottom: 48px;
    font-size: 1rem;
    line-height: 1.8;
    color: var(--text-gray);
}
.article-body p { margin-bottom: 1.25rem; color: var(--text-gray); }
.article-body p:last-child { margin-bottom: 0; }
.article-body h3 {
    font-size: 1.15rem;
    color: var(--navy);
    margin: 2rem 0 0.75rem;
    font-weight: 700;
}
.article-body em { color: var(--navy); font-style: italic; }
.article-body ul, .article-body ol {
    padding-left: 1.5rem;
    margin-bottom: 1.25rem;
    color: var(--text-gray);
}
.article-body li { margin-bottom: 0.4rem; }

.article-cta-block {
    border-top: 1px solid var(--border);
    padding: 48px 0 64px;
    max-width: 780px;
}
.article-cta-inner {
    background: linear-gradient(135deg, #E8F4F3 0%, var(--white) 100%);
    border: 1px solid var(--teal-border);
    border-radius: 16px;
    padding: 36px 40px;
}
.article-cta-inner h2 { font-size: 1.4rem; margin-bottom: 0.75rem; }
.article-cta-inner p { font-size: 0.95rem; margin-bottom: 1.5rem; }

.related-section {
    background: var(--bg-light);
    padding: 64px 0 88px;
    border-top: 1px solid var(--border);
}
.related-title {
    font-size: 1.4rem;
    margin-bottom: 1.75rem;
}
.related-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.25rem;
}

/* ===== INSIGHTS RESPONSIVE ===== */
@media (max-width: 900px) {
    .insights-grid { grid-template-columns: repeat(2, 1fr); }
    .related-grid { grid-template-columns: repeat(2, 1fr); }
    .insights-filter-bar { top: 0; }
    .article-hero-img { height: 280px; }
}
@media (max-width: 560px) {
    .insights-grid { grid-template-columns: 1fr; }
    .related-grid { grid-template-columns: 1fr; }
    .insights-hero { padding: 48px 0 32px; }
    .article-cta-inner { padding: 24px 20px; }
    .related-grid .insight-card:nth-child(n+3) { display: none; }
}