/* ═══════════════════════════════════════════════
   INDEX PAGE — Page-Specific Styles
   ═══════════════════════════════════════════════ */

/* ─── HERO ─── */
.hero {
    position: relative;
    min-height: 100vh;
    background-color: var(--navy);
    background-image:
        linear-gradient(135deg, rgba(11,31,58,0.94) 0%, rgba(11,31,58,0.84) 55%, rgba(11,31,58,0.72) 100%),
        url('../images/background/323412bc-5159-44eb-aff5-abce275d0ab6.png');
    background-size: cover;
    background-position: center right;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 140px 48px 120px;
    overflow: hidden;
}

#hero-canvas {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
}

.hero-gradient-overlay {
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse at 70% 50%, rgba(31,163,163,0.08) 0%, transparent 60%),
                radial-gradient(ellipse at 20% 80%, rgba(79,209,197,0.05) 0%, transparent 50%);
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 1200px;
    margin: 0 auto;
    width: 100%;
    display: grid;
    grid-template-columns: 1fr 420px;
    gap: 60px;
    align-items: center;
}

.hero-text { }

.hero-panel {
    background: rgba(255,255,255,0.04);
    border: 1px solid rgba(79,209,197,0.18);
    backdrop-filter: blur(8px);
}

.hero-panel-header {
    padding: 16px 24px;
    border-bottom: 1px solid rgba(79,209,197,0.12);
    display: flex;
    align-items: center;
    gap: 10px;
}

.hero-panel-dots {
    display: flex;
    gap: 6px;
}

.hero-panel-dots span {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: rgba(255,255,255,0.15);
}

.hero-panel-title {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 11px;
    color: rgba(255,255,255,0.45);
    letter-spacing: 0.15em;
    text-transform: uppercase;
    margin-left: auto;
}

.hero-panel-body {
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 0;
}

.hero-tier-row {
    display: grid;
    grid-template-columns: 60px 1fr auto;
    align-items: center;
    gap: 16px;
    padding: 14px 0;
    border-bottom: 1px solid rgba(255,255,255,0.06);
}

.hero-tier-row:last-child { border-bottom: none; }

.hero-tier-num {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 12px;
    color: rgba(255,255,255,0.45);
    letter-spacing: 0.1em;
}

.hero-tier-name {
    font-family: 'IBM Plex Sans', sans-serif;
    font-size: 14px;
    font-weight: 400;
    color: rgba(255,255,255,0.82);
}

.hero-tier-status {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 11px;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    padding: 4px 8px;
}

.hero-tier-status.live {
    color: #10B981;
    background: rgba(16,185,129,0.12);
    border: 1px solid rgba(16,185,129,0.25);
}

.hero-tier-status.coming {
    color: rgba(255,255,255,0.3);
    background: rgba(255,255,255,0.04);
    border: 1px solid rgba(255,255,255,0.1);
}

.hero-panel-metrics {
    padding: 20px 24px;
    border-top: 1px solid rgba(79,209,197,0.12);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1px;
    background: rgba(79,209,197,0.08);
}

.hero-metric-cell {
    background: rgba(11,31,58,0.6);
    padding: 14px 16px;
}

.hero-metric-val {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 18px;
    font-weight: 500;
    color: var(--cyan);
    line-height: 1;
    margin-bottom: 4px;
}

.hero-metric-lbl {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 11px;
    color: rgba(255,255,255,0.45);
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

.hero-label {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 11px;
    font-weight: 400;
    color: var(--cyan);
    letter-spacing: 0.25em;
    text-transform: uppercase;
    margin-bottom: 36px;
    display: flex;
    align-items: center;
    gap: 16px;
    animation: fadeInUp 0.6s ease 0.2s both;
}

.hero-label::before {
    content: '';
    display: inline-block;
    width: 32px;
    height: 1px;
    background: var(--cyan);
    flex-shrink: 0;
}

.hero-headline {
    font-family: 'DM Serif Display', serif;
    font-size: clamp(48px, 7.5vw, 100px);
    font-weight: 400;
    color: var(--white);
    line-height: 1.03;
    letter-spacing: -0.025em;
    margin-bottom: 40px;
    max-width: 860px;
    animation: fadeInUp 0.7s ease 0.4s both;
}

.hero-headline em {
    font-style: italic;
    color: var(--cyan);
}

.hero-subtext {
    font-size: 18px;
    font-weight: 300;
    color: rgba(255,255,255,0.72);
    line-height: 1.8;
    max-width: 520px;
    margin-bottom: 56px;
    animation: fadeInUp 0.7s ease 0.6s both;
}

.hero-actions {
    display: flex;
    align-items: center;
    gap: 28px;
    animation: fadeInUp 0.7s ease 0.8s both;
}

.btn-primary {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 12px;
    font-weight: 500;
    color: var(--navy);
    background: var(--cyan);
    padding: 16px 36px;
    border: none;
    cursor: pointer;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    text-decoration: none;
    display: inline-block;
    transition: all 0.2s;
}

.btn-primary:hover {
    background: #6BE3D6;
    transform: translateY(-2px);
    box-shadow: 0 16px 40px rgba(79,209,197,0.3);
}

.btn-ghost {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 12px;
    font-weight: 400;
    color: rgba(255,255,255,0.6);
    text-decoration: none;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    display: flex;
    align-items: center;
    gap: 10px;
    transition: color 0.2s;
}

.btn-ghost .arrow { transition: transform 0.2s; }
.btn-ghost:hover { color: var(--white); }
.btn-ghost:hover .arrow { transform: translateX(4px); }

.hero-stats {
    position: absolute;
    right: 48px;
    bottom: 100px;
    z-index: 2;
    display: flex;
    flex-direction: column;
    gap: 36px;
    animation: fadeInUp 0.7s ease 1.0s both;
}

.hero-stat {
    text-align: right;
    border-right: 2px solid rgba(79,209,197,0.35);
    padding-right: 20px;
}

.hero-stat-num {
    font-family: 'DM Serif Display', serif;
    font-size: 32px;
    color: var(--white);
    line-height: 1;
}

.hero-stat-num sup {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 14px;
    color: var(--cyan);
    vertical-align: super;
}

.hero-stat-lbl {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 9px;
    color: rgba(255,255,255,0.58);
    letter-spacing: 0.18em;
    text-transform: uppercase;
    margin-top: 4px;
}

/* ─── Hero Scroll Indicator ─── */
.hero-scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
}

.scroll-line {
    width: 1px;
    height: 52px;
    background: linear-gradient(to bottom, rgba(79,209,197,0.5), transparent);
    animation: scrollPulse 2.2s ease-in-out infinite;
}

@keyframes scrollPulse {
    0%, 100% { opacity: 0.3; transform: scaleY(0.8); }
    50% { opacity: 1; transform: scaleY(1); }
}

/* ─── TRUST BAR ─── */
.trust-bar {
    background: var(--white);
    border-bottom: 1px solid var(--border);
    overflow: hidden;
}

.trust-track {
    display: flex;
    width: max-content;
    animation: scrollTrack 28s linear infinite;
}

.trust-track:hover { animation-play-state: paused; }

@keyframes scrollTrack {
    from { transform: translateX(0); }
    to { transform: translateX(-50%); }
}

.trust-item {
    flex-shrink: 0;
    padding: 22px 52px;
    display: flex;
    align-items: center;
    gap: 12px;
    border-right: 1px solid var(--border);
}

.trust-dot {
    width: 5px;
    height: 5px;
    border-radius: 50%;
    background: var(--teal);
    flex-shrink: 0;
}

.trust-text {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 11px;
    color: #374151;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    white-space: nowrap;
}

/* ─── MISSION ─── */
.mission {
    padding: 140px 0;
    background: var(--white);
    position: relative;
    overflow: hidden;
}

.mission-dna-bg {
    position: absolute;
    right: -60px;
    top: 50%;
    transform: translateY(-50%);
    opacity: 0.04;
    pointer-events: none;
}

.mission-statement {
    font-family: 'DM Serif Display', serif;
    font-size: clamp(28px, 3.8vw, 52px);
    font-weight: 400;
    color: var(--navy);
    line-height: 1.25;
    letter-spacing: -0.015em;
    max-width: 880px;
}

.mission-statement em {
    font-style: italic;
    color: var(--teal);
}

.mission-rule {
    width: 72px;
    height: 2px;
    background: var(--cyan);
    margin-top: 48px;
    margin-bottom: 80px;
}

.mission-cols {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    padding-top: 60px;
    border-top: 1px solid var(--border);
}

.mission-col h3 {
    font-size: 11px;
    font-weight: 600;
    color: var(--navy);
    letter-spacing: 0.12em;
    text-transform: uppercase;
    margin-bottom: 16px;
}

.mission-col p {
    font-size: 16px;
    font-weight: 300;
    color: var(--grey);
    line-height: 1.8;
}

/* ─── CAPABILITIES ─── */
.capabilities {
    padding: 140px 0;
    background: var(--light-bg);
}

.cap-header {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: end;
    margin-bottom: 72px;
}

.cap-headline {
    font-family: 'DM Serif Display', serif;
    font-size: clamp(32px, 4vw, 58px);
    font-weight: 400;
    color: var(--navy);
    line-height: 1.08;
    letter-spacing: -0.02em;
}

.cap-desc {
    font-size: 16px;
    font-weight: 300;
    color: var(--grey);
    line-height: 1.8;
}

.cap-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2px;
    background: var(--border);
}

.cap-card {
    background: var(--white);
    padding: 48px 36px;
    position: relative;
    overflow: hidden;
    transition: transform 0.3s ease, background 0.3s;
}

.cap-card::after {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 2px;
    background: transparent;
    transition: background 0.3s;
}

.cap-card:hover { transform: translateY(-4px); background: #FAFCFF; }
.cap-card:hover::after { background: var(--teal); }

.cap-num {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 11px;
    color: rgba(107,114,128,0.5);
    letter-spacing: 0.2em;
    margin-bottom: 28px;
}

.cap-icon {
    width: 40px;
    height: 40px;
    color: var(--teal);
    margin-bottom: 28px;
}

.cap-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--navy);
    margin-bottom: 14px;
    letter-spacing: -0.01em;
}

.cap-body {
    font-size: 15px;
    font-weight: 300;
    color: var(--grey);
    line-height: 1.75;
}

/* ─── INFRASTRUCTURE ─── */
.infrastructure {
    padding: 160px 0;
    background-color: var(--navy);
    background-image:
        linear-gradient(135deg, rgba(11,31,58,0.90) 0%, rgba(11,31,58,0.84) 100%),
        url('../images/background/9fcd7125-2701-4c38-9483-1a50d3b72e22.png');
    background-size: cover;
    background-position: center;
    position: relative;
    overflow: hidden;
}

.infrastructure::before {
    content: '';
    position: absolute;
    top: -240px; right: -240px;
    width: 700px; height: 700px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(31,163,163,0.1) 0%, transparent 70%);
    pointer-events: none;
}

.infrastructure::after {
    content: '';
    position: absolute;
    bottom: -200px; left: -200px;
    width: 500px; height: 500px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(79,209,197,0.06) 0%, transparent 70%);
    pointer-events: none;
}

.infra-eyebrow {
    color: rgba(79,209,197,0.75);
}

.infra-eyebrow::before { background: rgba(79,209,197,0.75); }

.infra-headline {
    font-family: 'DM Serif Display', serif;
    font-size: clamp(36px, 5.5vw, 76px);
    font-weight: 400;
    color: var(--white);
    line-height: 1.05;
    letter-spacing: -0.025em;
    max-width: 680px;
    margin-bottom: 100px;
}

.infra-headline em {
    font-style: italic;
    color: var(--cyan);
}

.infra-metrics {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2px;
    background: rgba(255,255,255,0.06);
    margin-bottom: 80px;
}

.infra-metric {
    background: rgba(11,31,58,0.7);
    border: 1px solid rgba(79,209,197,0.07);
    padding: 52px 44px;
    transition: transform 0.3s, box-shadow 0.3s;
}

.infra-metric:hover { transform: translateY(-4px); box-shadow: 0 16px 40px rgba(0,0,0,0.25); }

.infra-metric-lbl {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 11px;
    color: rgba(255,255,255,0.45);
    letter-spacing: 0.16em;
    text-transform: uppercase;
    margin-bottom: 16px;
}

.infra-metric-val {
    font-family: 'DM Serif Display', serif;
    font-size: clamp(48px, 6vw, 72px);
    color: var(--white);
    line-height: 1;
    letter-spacing: -0.03em;
    margin-bottom: 20px;
}

.infra-metric-val sup {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 0.35em;
    color: var(--cyan);
    vertical-align: super;
    letter-spacing: 0.05em;
}

.infra-metric-desc {
    font-size: 15px;
    font-weight: 300;
    color: rgba(255,255,255,0.62);
    line-height: 1.65;
}

.infra-features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    border-top: 1px solid rgba(255,255,255,0.07);
}

.infra-feat {
    display: grid;
    grid-template-columns: 24px 1fr;
    gap: 20px;
    padding: 36px 0;
    border-bottom: 1px solid rgba(255,255,255,0.07);
    padding-right: 60px;
}

.infra-feat:nth-child(even) {
    padding-right: 0;
    padding-left: 60px;
    border-left: 1px solid rgba(255,255,255,0.07);
}

.infra-feat-icon {
    width: 18px;
    height: 18px;
    color: var(--teal);
    margin-top: 2px;
    flex-shrink: 0;
}

.infra-feat-title {
    font-size: 14px;
    font-weight: 500;
    color: var(--white);
    margin-bottom: 8px;
}

.infra-feat-body {
    font-size: 15px;
    font-weight: 300;
    color: rgba(255,255,255,0.62);
    line-height: 1.65;
}

.infra-footnote {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 11px;
    color: rgba(255,255,255,0.3);
    margin-top: 40px;
    letter-spacing: 0.04em;
}

/* ─── COMPLIANCE ─── */
.compliance {
    padding: 160px 0;
    background: var(--white);
}

.compliance-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 120px;
    align-items: center;
}

.compliance-headline {
    font-family: 'DM Serif Display', serif;
    font-size: clamp(30px, 4vw, 52px);
    font-weight: 400;
    color: var(--navy);
    line-height: 1.1;
    letter-spacing: -0.02em;
    margin-bottom: 24px;
}

.compliance-desc {
    font-size: 16px;
    font-weight: 300;
    color: var(--grey);
    line-height: 1.8;
    margin-bottom: 48px;
}

.compliance-table {
    border-top: 1px solid var(--border);
}

.compliance-row {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 18px 0;
    border-bottom: 1px solid var(--border);
    transition: background 0.2s;
}

.compliance-row:hover { background: rgba(31,163,163,0.04); }

.compliance-badge {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 12px;
    font-weight: 500;
    color: var(--teal);
    background: rgba(31,163,163,0.08);
    border: 1px solid rgba(31,163,163,0.2);
    padding: 5px 12px;
    letter-spacing: 0.08em;
    flex-shrink: 0;
    min-width: 110px;
    text-align: center;
}

.compliance-row-text {
    font-size: 15px;
    color: var(--navy);
    font-weight: 300;
}

/* Swiss Card */
.swiss-card {
    background: var(--navy);
    padding: 60px;
    position: relative;
    overflow: hidden;
}

.swiss-card::before {
    content: '';
    position: absolute;
    top: -80px; right: -80px;
    width: 240px; height: 240px;
    border: 1px solid rgba(79,209,197,0.1);
    border-radius: 50%;
}

.swiss-card::after {
    content: '';
    position: absolute;
    top: -30px; right: -30px;
    width: 120px; height: 120px;
    border: 1px solid rgba(79,209,197,0.08);
    border-radius: 50%;
}

.swiss-flag {
    width: 48px; height: 48px;
    background: #D52B1E;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 36px;
    position: relative;
    z-index: 1;
}

.swiss-cross {
    position: relative;
    width: 20px; height: 20px;
}

.swiss-cross::before,
.swiss-cross::after {
    content: '';
    position: absolute;
    background: white;
}

.swiss-cross::before {
    width: 20px; height: 6px;
    top: 50%; left: 0;
    transform: translateY(-50%);
}

.swiss-cross::after {
    width: 6px; height: 20px;
    left: 50%; top: 0;
    transform: translateX(-50%);
}

.swiss-title {
    font-family: 'DM Serif Display', serif;
    font-size: 28px;
    color: var(--white);
    margin-bottom: 16px;
    position: relative;
    z-index: 1;
}

.swiss-body {
    font-size: 15px;
    font-weight: 300;
    color: rgba(255,255,255,0.68);
    line-height: 1.75;
    margin-bottom: 44px;
    position: relative;
    z-index: 1;
}

.swiss-specs {
    display: flex;
    flex-direction: column;
    gap: 0;
    position: relative;
    z-index: 1;
}

.swiss-spec-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 14px 0;
    border-bottom: 1px solid rgba(255,255,255,0.07);
}

.swiss-spec-key {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 12px;
    color: rgba(255,255,255,0.62);
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

.swiss-spec-val {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 13px;
    color: var(--cyan);
    letter-spacing: 0.05em;
}

/* ─── USE CASES ─── */
.use-cases {
    padding: 140px 0;
    background: var(--light-bg);
}

.uc-header {
    margin-bottom: 72px;
}

.uc-headline {
    font-family: 'DM Serif Display', serif;
    font-size: clamp(30px, 4vw, 52px);
    font-weight: 400;
    color: var(--navy);
    line-height: 1.1;
    letter-spacing: -0.02em;
}

.uc-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2px;
    background: var(--border);
}

.uc-card {
    background: var(--white);
    padding: 52px 44px;
    cursor: pointer;
    transition: background 0.35s;
    position: relative;
}

.uc-card:hover { background: var(--navy); }
.uc-card:hover .uc-num,
.uc-card:hover .uc-title { color: var(--white); }
.uc-card:hover .uc-body { color: rgba(255,255,255,0.5); }
.uc-card:hover .uc-arrow { color: var(--cyan); }

.uc-num {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 10px;
    color: rgba(107,114,128,0.5);
    letter-spacing: 0.2em;
    margin-bottom: 36px;
    transition: color 0.35s;
}

.uc-title {
    font-size: 19px;
    font-weight: 600;
    color: var(--navy);
    margin-bottom: 16px;
    letter-spacing: -0.02em;
    line-height: 1.3;
    transition: color 0.35s;
}

.uc-body {
    font-size: 14px;
    font-weight: 300;
    color: var(--grey);
    line-height: 1.75;
    margin-bottom: 44px;
    transition: color 0.35s;
}

.uc-arrow {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 20px;
    color: var(--teal);
    transition: color 0.35s, transform 0.2s;
}

.uc-card:hover .uc-arrow { transform: translateX(6px); }

/* ─── TIER KEY CALLOUT ─── */
.tier-key {
    margin-bottom: 28px;
}

.tier-key-item {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 12px;
    color: rgba(79,209,197,0.78);
    letter-spacing: 0.06em;
    padding: 7px 16px;
    border: 1px solid rgba(79,209,197,0.22);
    display: inline-block;
}

.tier-key-item strong {
    color: var(--cyan);
    font-weight: 600;
}

.tier-key-item.dark {
    color: rgba(79,209,197,0.9);
    border-color: rgba(79,209,197,0.28);
}

/* ─── PLATFORM TIERS ─── */
.tiers {
    padding: 140px 0;
    background: var(--light-bg);
}

.tiers-header {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: end;
    margin-bottom: 72px;
}

.tiers-headline {
    font-family: 'DM Serif Display', serif;
    font-size: clamp(32px, 4vw, 56px);
    font-weight: 400;
    color: var(--navy);
    line-height: 1.08;
    letter-spacing: -0.02em;
}

.tiers-desc {
    font-size: 16px;
    font-weight: 300;
    color: var(--grey);
    line-height: 1.8;
}

.tiers-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2px;
    background: var(--border);
}

.tier-card {
    background: var(--white);
    padding: 44px 32px;
    position: relative;
    overflow: hidden;
    transition: transform 0.3s ease, background 0.3s, box-shadow 0.3s;
}

.tier-card:hover { transform: translateY(-6px); background: #FAFCFF; box-shadow: 0 20px 48px rgba(11,31,58,0.12); }

.tier-card::after {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 3px;
    background: transparent;
    transition: background 0.3s;
}

.tier-card:hover::after { background: var(--teal); }

.tier-num {
    font-family: 'DM Serif Display', serif;
    font-size: 48px;
    color: rgba(31,163,163,0.15);
    line-height: 1;
    margin-bottom: 20px;
    letter-spacing: -0.03em;
}

.tier-badge {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 11px;
    font-weight: 500;
    color: var(--teal);
    background: rgba(31,163,163,0.08);
    border: 1px solid rgba(31,163,163,0.2);
    padding: 4px 10px;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    display: inline-block;
    margin-bottom: 20px;
}

.tier-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--navy);
    margin-bottom: 12px;
    letter-spacing: -0.01em;
    line-height: 1.3;
}

.tier-body {
    font-size: 15px;
    font-weight: 300;
    color: #4B5563;
    line-height: 1.75;
}

.tier-status {
    margin-top: 24px;
    font-family: 'IBM Plex Mono', monospace;
    font-size: 12px;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    display: flex;
    align-items: center;
    gap: 8px;
}

.tier-status.live { color: #10B981; }
.tier-status.rollout { color: rgba(107,114,128,0.7); }

.tier-status-dot {
    width: 6px; height: 6px;
    border-radius: 50%;
    flex-shrink: 0;
}

.live .tier-status-dot { background: #10B981; }
.rollout .tier-status-dot { background: rgba(107,114,128,0.5); }

/* ─── DATA TIERS ─── */
.data-tiers {
    padding: 140px 0;
    background-color: var(--navy);
    background-image:
        linear-gradient(135deg, rgba(11,31,58,0.88) 0%, rgba(11,31,58,0.82) 100%),
        url('../images/background/5f98f8f8-24ee-4582-908e-23fd58c45133.png');
    background-size: cover;
    background-position: center;
    position: relative;
    overflow: hidden;
}

.data-tiers::before {
    content: '';
    position: absolute;
    top: -200px; right: -200px;
    width: 600px; height: 600px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(31,163,163,0.1) 0%, transparent 70%);
    pointer-events: none;
}

.data-tiers-headline {
    font-family: 'DM Serif Display', serif;
    font-size: clamp(32px, 4vw, 56px);
    font-weight: 400;
    color: var(--white);
    line-height: 1.08;
    letter-spacing: -0.02em;
    max-width: 600px;
    margin-bottom: 80px;
}

.data-tiers-headline em {
    font-style: italic;
    color: var(--cyan);
}

.data-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2px;
    background: rgba(255,255,255,0.06);
}

.data-card {
    background: rgba(11,31,58,0.7);
    border: 1px solid rgba(79,209,197,0.1);
    padding: 0;
    transition: transform 0.3s ease, border-color 0.3s, background 0.3s, box-shadow 0.3s;
    overflow: hidden;
}

.data-card:hover { background: rgba(31,163,163,0.1); border-color: rgba(79,209,197,0.3); transform: translateY(-4px); box-shadow: 0 20px 40px rgba(0,0,0,0.2); }

.data-card-illus {
    width: 100%;
    height: 100px;
    border-bottom: 1px solid rgba(79,209,197,0.1);
    display: block;
    flex-shrink: 0;
}

.data-card-illus svg {
    width: 100%;
    height: 100%;
}

.data-card-body {
    padding: 32px;
}

.data-num {
    font-family: 'DM Serif Display', serif;
    font-size: 48px;
    color: rgba(79,209,197,0.18);
    line-height: 1;
    margin-bottom: 16px;
    letter-spacing: -0.03em;
}

.data-tier-label {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 11px;
    color: rgba(79,209,197,0.9);
    letter-spacing: 0.15em;
    text-transform: uppercase;
    margin-bottom: 14px;
}

.data-title {
    font-size: 15px;
    font-weight: 600;
    color: var(--white);
    margin-bottom: 12px;
    line-height: 1.35;
}

.data-body {
    font-size: 15px;
    font-weight: 300;
    color: rgba(255,255,255,0.72);
    line-height: 1.72;
}

/* ─── GUIDING PRINCIPLES ─── */
.principles {
    background: var(--light-bg);
    padding: 100px 0;
}

.principles-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2px;
    background: var(--border);
    margin-top: 56px;
}

.principle-card {
    background: var(--white);
    padding: 44px 36px;
}

.principle-icon {
    width: 36px; height: 36px;
    color: var(--teal);
    margin-bottom: 24px;
}

.principle-title {
    font-size: 17px;
    font-weight: 600;
    color: var(--navy);
    margin-bottom: 12px;
}

.principle-body {
    font-size: 15px;
    font-weight: 300;
    color: var(--grey);
    line-height: 1.75;
}

/* ─── TECH SPECS ─── */
.tech-specs {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2px;
    background: rgba(255,255,255,0.06);
    margin-top: 80px;
}

.spec-item {
    background: rgba(11,31,58,0.7);
    border: 1px solid rgba(79,209,197,0.07);
    padding: 40px;
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 20px;
    align-items: start;
}

.spec-icon {
    width: 20px; height: 20px;
    color: var(--teal);
    margin-top: 2px;
    flex-shrink: 0;
}

.spec-label {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 11px;
    color: rgba(255,255,255,0.62);
    letter-spacing: 0.12em;
    text-transform: uppercase;
    margin-bottom: 8px;
}

.spec-value {
    font-size: 15px;
    font-weight: 400;
    color: var(--white);
    margin-bottom: 6px;
}

.spec-detail {
    font-size: 15px;
    font-weight: 300;
    color: rgba(255,255,255,0.62);
    line-height: 1.6;
}

/* ─── INDEX RESPONSIVE ─── */
@media (max-width: 1100px) {
    .cap-grid { grid-template-columns: repeat(2, 1fr); }
    .infra-metrics { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 860px) {
    .hero { padding: 120px 24px 80px; }
    .hero-stats {
        position: static;
        flex-direction: row;
        margin-top: 64px;
        gap: 24px;
        flex-wrap: wrap;
    }
    .hero-stat { text-align: left; border-right: none; border-left: 2px solid rgba(79,209,197,0.35); padding-right: 0; padding-left: 16px; }
    .mission-cols { grid-template-columns: 1fr; gap: 40px; }
    .cap-header { grid-template-columns: 1fr; gap: 24px; }
    .hero-content { grid-template-columns: 1fr; }
    .hero-panel { display: none; }
    .cap-grid { grid-template-columns: 1fr; }
    .tiers-header { grid-template-columns: 1fr; gap: 24px; }
    .tiers-grid { grid-template-columns: 1fr; }
    .data-grid { grid-template-columns: 1fr; }
    .principles-grid { grid-template-columns: 1fr; }
    .tech-specs { grid-template-columns: 1fr; }
    .infra-metrics { grid-template-columns: 1fr; }
    .infra-features { grid-template-columns: 1fr; }
    .infra-feat:nth-child(even) { padding-left: 0; border-left: none; }
    .compliance-layout { grid-template-columns: 1fr; gap: 60px; }
}