/* CyberSentinel - PHD Dissertation Pages (algorithms, architecture, compliance, mitre)
   Dark theme — saytning umumiy palitrasiga mos.
   Foydalanish: <link rel="stylesheet" href="assets/css/dissertation.css"> */

/* ============================================================
   Page Hero (har 4 sahifa uchun umumiy)
   ============================================================ */
.page-hero {
    padding: 7rem 0 4rem;
    background:
        radial-gradient(ellipse at top, rgba(34, 211, 238, 0.15) 0%, transparent 50%),
        radial-gradient(ellipse at bottom, rgba(139, 92, 246, 0.10) 0%, transparent 50%),
        var(--bg-primary, #050810);
    position: relative;
    overflow: hidden;
    color: var(--text-primary, #f1f5f9);
}
.page-hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(99, 152, 255, 0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(99, 152, 255, 0.04) 1px, transparent 1px);
    background-size: 50px 50px;
    pointer-events: none;
    mask-image: radial-gradient(ellipse at center, #000 30%, transparent 70%);
}
.page-hero .container { position: relative; z-index: 1; }
.page-hero .hero-badge {
    background: rgba(34, 211, 238, 0.10);
    border: 1px solid rgba(34, 211, 238, 0.25);
    padding: .4rem 1rem;
    border-radius: 999px;
    font-size: .85rem;
    color: var(--accent-cyan-glow, #22d3ee);
    display: inline-flex;
    align-items: center;
    gap: .5rem;
}
.page-hero h1 {
    font-weight: 800;
    font-size: clamp(2rem, 5vw, 3.4rem);
    margin: 1.2rem 0 1rem;
    background: linear-gradient(135deg, #22d3ee 0%, #8b5cf6 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}
.page-hero .lead {
    color: var(--text-secondary, #cbd5e1);
    max-width: 760px;
    font-size: 1.1rem;
    line-height: 1.65;
}

/* ============================================================
   Sections (umumiy)
   ============================================================ */
.algo-section,
.dataflow-section,
.compliance-grid,
.tactics-section,
.techniques-section,
.mapping-examples,
.theorems-section,
.services-grid,
.storage-section,
.observability-section,
.decision-flow {
    padding: 5rem 0;
    background: var(--bg-primary, #050810);
    color: var(--text-primary, #f1f5f9);
    position: relative;
}
.theorems-section,
.services-grid,
.observability-section,
.decision-flow,
.techniques-section {
    background: var(--bg-secondary, #0a0f1f);
}
.section-title {
    font-weight: 800;
    font-size: clamp(1.6rem, 4vw, 2.4rem);
    text-align: center;
    color: var(--text-primary, #f1f5f9);
    margin-bottom: .6rem;
}
.section-subtitle {
    text-align: center;
    color: var(--text-muted, #94a3b8);
    margin-bottom: 2.5rem;
    font-size: 1.05rem;
}

/* ============================================================
   Card base (algo, comp, tech, theorem, service, storage, obs, ...)
   ============================================================ */
.algo-card,
.comp-card,
.tech-card,
.theorem-card,
.service-card,
.storage-item,
.obs-card,
.tactic-card,
.example-row,
.step-item {
    background: var(--bg-elevated, rgba(20, 30, 55, 0.6));
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-default, rgba(99, 152, 255, 0.15));
    border-radius: var(--radius-lg, 16px);
    padding: 1.8rem;
    color: var(--text-primary, #f1f5f9);
    transition: transform .25s, border-color .25s, box-shadow .25s;
    position: relative;
    overflow: hidden;
}
.algo-card { padding: 2rem; height: 100%; }
.algo-card:hover,
.comp-card:hover,
.tech-card:hover,
.theorem-card:hover,
.service-card:hover {
    transform: translateY(-4px);
    border-color: var(--border-strong, rgba(99, 152, 255, 0.3));
    box-shadow: 0 12px 40px rgba(34, 211, 238, 0.10);
}
.algo-card h3,
.comp-card h3,
.tech-card h4,
.theorem-card h4,
.service-card h4,
.obs-card h4 {
    color: var(--text-primary, #f1f5f9);
    font-weight: 700;
}
.algo-card p,
.comp-card p,
.tech-card p,
.theorem-card p,
.service-desc {
    color: var(--text-secondary, #cbd5e1);
}
.text-muted,
.algo-card .text-muted {
    color: var(--text-muted, #94a3b8) !important;
}
.algo-card small,
.comp-card small,
.tactic-card small,
.tech-stat-card small,
.tech-cap-card p,
.obs-card p {
    color: var(--text-muted, #94a3b8);
}

/* ============================================================
   Algo icon (gradient bg)
   ============================================================ */
.algo-icon {
    width: 64px;
    height: 64px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.7rem;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, rgba(34, 211, 238, 0.20) 0%, rgba(139, 92, 246, 0.20) 100%);
    color: var(--accent-cyan-glow, #22d3ee);
    border: 1px solid var(--border-default, rgba(99, 152, 255, 0.15));
}
.algo-icon.bg-primary-subtle   { background: linear-gradient(135deg, rgba(59, 130, 246, 0.20), rgba(139, 92, 246, 0.20)); color: #60a5fa; }
.algo-icon.bg-success-subtle   { background: linear-gradient(135deg, rgba(16, 185, 129, 0.20), rgba(6, 182, 212, 0.20));  color: #34d399; }
.algo-icon.bg-warning-subtle   { background: linear-gradient(135deg, rgba(245, 158, 11, 0.20), rgba(239, 68, 68, 0.20));   color: #fbbf24; }
.algo-icon.bg-danger-subtle    { background: linear-gradient(135deg, rgba(239, 68, 68, 0.20), rgba(245, 158, 11, 0.20));   color: #f87171; }
.algo-icon.bg-info-subtle      { background: linear-gradient(135deg, rgba(6, 182, 212, 0.20), rgba(59, 130, 246, 0.20));   color: #22d3ee; }
.algo-icon.bg-secondary-subtle { background: linear-gradient(135deg, rgba(148, 163, 184, 0.20), rgba(99, 102, 241, 0.20)); color: #cbd5e1; }

/* ============================================================
   Formula code blocks
   ============================================================ */
.formula {
    background: rgba(0, 0, 0, 0.45);
    border: 1px solid var(--border-default, rgba(99, 152, 255, 0.15));
    color: var(--accent-cyan-glow, #22d3ee);
    padding: 1rem 1.2rem;
    border-radius: 10px;
    font-size: .95rem;
    font-family: 'JetBrains Mono', 'Courier New', monospace;
    overflow-x: auto;
    margin: .8rem 0;
}
.formula code { color: inherit; background: transparent; padding: 0; }

/* ============================================================
   Algo stats list
   ============================================================ */
.algo-stats {
    list-style: none;
    padding-left: 0;
    margin-top: 1rem;
}
.algo-stats li {
    padding: .5rem 0;
    border-bottom: 1px solid var(--border-subtle, rgba(99, 152, 255, 0.08));
    color: var(--text-secondary, #cbd5e1);
}
.algo-stats li:last-child { border-bottom: 0; }
.algo-stats li strong { color: var(--accent-cyan-glow, #22d3ee); }

.algo-link {
    display: inline-flex;
    align-items: center;
    gap: .4rem;
    font-weight: 600;
    color: var(--accent-cyan-glow, #22d3ee);
    text-decoration: none;
    margin-top: 1rem;
    transition: gap .2s;
}
.algo-link:hover {
    color: var(--accent-blue, #3b82f6);
    gap: .7rem;
}

/* ============================================================
   Theorem
   ============================================================ */
.theorem-card {
    border-top: 3px solid;
    border-image: linear-gradient(135deg, #22d3ee, #8b5cf6) 1;
    border-image-slice: 1;
}
.theorem-num {
    color: var(--accent-cyan-glow, #22d3ee);
    font-weight: 700;
    font-size: .85rem;
    letter-spacing: .12em;
    text-transform: uppercase;
}
.theorem-card h4 { margin-top: .5rem; }

/* ============================================================
   Architecture
   ============================================================ */
.dataflow-container {
    background: rgba(0, 0, 0, 0.4);
    border: 1px solid var(--border-default, rgba(99, 152, 255, 0.15));
    border-radius: var(--radius-lg, 16px);
    padding: 2rem;
    overflow-x: auto;
    box-shadow: inset 0 0 40px rgba(34, 211, 238, 0.05);
}
.dataflow-ascii {
    color: var(--accent-cyan-glow, #22d3ee);
    font-family: 'JetBrains Mono', 'Courier New', monospace;
    font-size: .8rem;
    line-height: 1.6;
    margin: 0;
    white-space: pre;
}

.service-card { padding: 1.6rem; height: 100%; }
.service-num {
    position: absolute;
    top: 1rem;
    right: 1rem;
    font-weight: 800;
    color: var(--text-dim, #475569);
    font-size: 1.2rem;
}
.service-icon {
    font-size: 2.4rem;
    margin-bottom: .8rem;
    color: var(--accent-cyan-glow, #22d3ee);
}
.service-tech {
    color: var(--accent-blue, #3b82f6);
    font-size: .82rem;
    font-weight: 600;
    margin-bottom: .8rem;
    font-family: 'JetBrains Mono', monospace;
}
.service-desc { font-size: .92rem; line-height: 1.55; }
.service-res {
    margin-top: .8rem;
    padding-top: .8rem;
    border-top: 1px solid var(--border-subtle, rgba(99, 152, 255, 0.08));
    color: var(--text-muted, #94a3b8);
    font-size: .82rem;
}
.service-card.border-primary-subtle   { border-left: 3px solid #60a5fa; }
.service-card.border-success-subtle   { border-left: 3px solid #34d399; }
.service-card.border-warning-subtle   { border-left: 3px solid #fbbf24; }
.service-card.border-danger-subtle    { border-left: 3px solid #f87171; }
.service-card.border-info-subtle      { border-left: 3px solid #22d3ee; }
.service-card.border-secondary-subtle { border-left: 3px solid #cbd5e1; }

.storage-item {
    text-align: center;
    padding: 1.6rem;
    height: 100%;
}
.storage-item i {
    font-size: 2.4rem;
    margin-bottom: .8rem;
    background: linear-gradient(135deg, #22d3ee, #8b5cf6);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}
.storage-item h5 { font-weight: 700; color: var(--text-primary); }

.obs-card {
    text-align: center;
    padding: 2rem 1.4rem;
    height: 100%;
}
.obs-card i {
    font-size: 2.6rem;
    background: linear-gradient(135deg, #22d3ee, #8b5cf6);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    margin-bottom: .8rem;
    display: block;
}

/* ============================================================
   Compliance
   ============================================================ */
.comp-card {
    border-left-width: 4px !important;
    border-left-style: solid !important;
}
.comp-card.border-primary   { border-left-color: #60a5fa !important; }
.comp-card.border-success   { border-left-color: #34d399 !important; }
.comp-card.border-warning   { border-left-color: #fbbf24 !important; }
.comp-card.border-danger    { border-left-color: #f87171 !important; }
.comp-card.border-info      { border-left-color: #22d3ee !important; }
.comp-card.border-secondary { border-left-color: #cbd5e1 !important; }
.comp-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.2rem;
}
.comp-flag { font-size: 2.4rem; line-height: 1; }
.comp-card h3 { margin: 0; font-weight: 700; }
.comp-card small { color: var(--text-muted, #94a3b8); }
.comp-rules { padding-left: 1.2rem; margin-top: 1rem; }
.comp-rules li {
    padding: .4rem 0;
    line-height: 1.6;
    color: var(--text-secondary, #cbd5e1);
}
.comp-rules strong { color: var(--accent-cyan-glow, #22d3ee); }

.decision-steps {
    display: flex;
    align-items: stretch;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
    margin-top: 2rem;
}
.step-item {
    flex: 1 1 180px;
    min-width: 170px;
    max-width: 230px;
    text-align: center;
    padding: 1.4rem;
}
.step-num {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px; height: 40px;
    border-radius: 50%;
    background: linear-gradient(135deg, #22d3ee, #8b5cf6);
    color: #fff;
    font-weight: 700;
    margin-bottom: .8rem;
}
.step-item h5 { font-weight: 700; color: var(--text-primary); }
.step-item p { color: var(--text-secondary); font-size: .9rem; margin: 0; }
.step-arrow {
    font-size: 1.8rem;
    color: var(--text-dim, #475569);
    align-self: center;
    flex-shrink: 0;
}

/* ============================================================
   MITRE
   ============================================================ */
.tactic-card {
    display: block;
    padding: 1.2rem;
    text-decoration: none;
    color: inherit;
    height: 100%;
}
.tactic-card:hover {
    transform: translateY(-3px);
    border-color: rgba(248, 113, 113, 0.4);
    color: inherit;
    box-shadow: 0 8px 24px rgba(248, 113, 113, 0.10);
}
.tactic-id {
    font-family: 'JetBrains Mono', monospace;
    color: #f87171;
    font-weight: 700;
    font-size: .9rem;
}
.tactic-card h5 {
    margin: .35rem 0;
    font-weight: 700;
    color: var(--text-primary);
}
.tactic-card small { color: var(--text-muted); }

.tech-card {
    border-top: 3px solid #f87171;
    padding: 1.6rem;
    height: 100%;
}
.tech-id {
    font-family: 'JetBrains Mono', monospace;
    font-size: 1.1rem;
    font-weight: 700;
    color: #f87171;
}
.tech-card h4 {
    margin: .4rem 0 .7rem;
}
.tech-tactic {
    color: var(--accent-cyan-glow, #22d3ee);
    font-weight: 600;
}

.examples-stack {
    max-width: 940px;
    margin: 2rem auto 0;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}
.example-row {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: 1.2rem;
    align-items: center;
    padding: 1.4rem;
}
.example-input {
    color: var(--text-secondary);
    font-size: .92rem;
    line-height: 1.7;
}
.example-input strong { color: var(--text-primary); }
.example-arrow {
    font-size: 1.8rem;
    color: var(--accent-cyan-glow, #22d3ee);
}
.example-output {
    display: flex;
    flex-wrap: wrap;
    gap: .5rem;
    align-items: center;
}
.example-output small { color: var(--text-muted); }
.ttp-badge {
    display: inline-block;
    padding: .35rem .65rem;
    border-radius: 6px;
    font-family: 'JetBrains Mono', monospace;
    font-size: .85rem;
    font-weight: 700;
    color: #fff;
}
.ttp-badge.bg-primary { background: #3b82f6; }
.ttp-badge.bg-warning { background: #f59e0b; }
.ttp-badge.bg-danger  { background: #ef4444; }
.ttp-badge.bg-info    { background: #06b6d4; }
.ttp-badge.bg-dark    { background: #1e293b; }

/* ============================================================
   index.php Tech Capabilities (yangi section)
   ============================================================ */
.tech-capabilities {
    padding: 5rem 0;
    background: var(--bg-primary, #050810);
}
.section-title-modern {
    font-weight: 800;
    font-size: clamp(1.8rem, 4.5vw, 2.6rem);
    margin: .8rem 0 .4rem;
    color: var(--text-primary, #f1f5f9);
    background: linear-gradient(135deg, #22d3ee 0%, #8b5cf6 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}
.section-subtitle-modern {
    color: var(--text-muted, #94a3b8);
    font-size: 1.05rem;
}
.tech-cap-card {
    display: block;
    background: var(--bg-elevated, rgba(20, 30, 55, 0.6));
    border: 1px solid var(--border-default, rgba(99, 152, 255, 0.15));
    border-radius: var(--radius-lg, 16px);
    padding: 1.8rem 1.4rem;
    text-align: center;
    height: 100%;
    text-decoration: none;
    color: inherit;
    transition: transform .25s, border-color .25s, box-shadow .25s;
}
.tech-cap-card:hover {
    transform: translateY(-6px);
    border-color: var(--accent-cyan-glow, #22d3ee);
    box-shadow: 0 16px 40px rgba(34, 211, 238, 0.15);
    color: inherit;
}
.tech-cap-icon {
    width: 64px; height: 64px;
    border-radius: 16px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 1.7rem;
    color: #fff;
    margin-bottom: 1rem;
}
.bg-gradient-primary { background: linear-gradient(135deg, #06b6d4 0%, #3b82f6 50%, #8b5cf6 100%); }
.bg-gradient-info    { background: linear-gradient(135deg, #06b6d4 0%, #22d3ee 100%); }
.bg-gradient-success { background: linear-gradient(135deg, #10b981 0%, #06b6d4 100%); }
.bg-gradient-danger  { background: linear-gradient(135deg, #ef4444 0%, #f59e0b 100%); }
.tech-cap-card h4 {
    font-weight: 700;
    font-size: 1.05rem;
    margin: 0 0 .3rem;
    color: var(--text-primary, #f1f5f9);
}
.tech-cap-card p {
    color: var(--text-muted, #94a3b8);
    font-size: .88rem;
    margin: 0;
    line-height: 1.5;
}
.tech-stat-card {
    background: var(--bg-elevated, rgba(20, 30, 55, 0.6));
    border: 1px solid var(--border-default, rgba(99, 152, 255, 0.15));
    border-radius: var(--radius-md, 12px);
    padding: 1.6rem;
    text-align: center;
    height: 100%;
}
.tech-stat-num {
    font-weight: 800;
    font-size: 1.8rem;
    background: linear-gradient(135deg, #22d3ee, #8b5cf6);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    line-height: 1.2;
}

/* ============================================================
   Mobile
   ============================================================ */
@media (max-width: 768px) {
    .page-hero { padding: 5rem 0 2.5rem; }
    .algo-section,
    .compliance-grid,
    .tactics-section,
    .techniques-section,
    .mapping-examples,
    .theorems-section,
    .services-grid,
    .storage-section,
    .observability-section,
    .decision-flow,
    .tech-capabilities { padding: 3rem 0; }
    .algo-card { padding: 1.4rem; }
    .formula { font-size: .8rem; padding: .8rem; }
    .dataflow-ascii { font-size: .65rem; }
    .dataflow-container { padding: 1rem; }
    .decision-steps { flex-direction: column; }
    .step-arrow { transform: rotate(90deg); }
    .example-row { grid-template-columns: 1fr; text-align: center; }
    .example-arrow { transform: rotate(90deg); }
}
/* ============================================================
   About sahifasi — yangi 3 bo'lim (microservices, contributions, compliance)
   Sayt umumiy palitra (cyan/blue/purple gradient + dark glass)
   ============================================================ */

/* Section header (eyebrow + title + lead) */
.about-section__eyebrow {
    display: inline-flex;
    align-items: center;
    gap: .5rem;
    background: rgba(34, 211, 238, 0.10);
    border: 1px solid rgba(34, 211, 238, 0.25);
    padding: .35rem .9rem;
    border-radius: 999px;
    font-size: .82rem;
    color: var(--accent-cyan-glow, #22d3ee);
    margin-bottom: 1rem;
    text-transform: uppercase;
    letter-spacing: .1em;
    font-weight: 600;
}

.about-section__lead {
    color: var(--text-secondary, #cbd5e1);
    max-width: 760px;
    margin: 1rem auto 0;
    font-size: 1.05rem;
    line-height: 1.65;
    text-align: center;
}

/* ============================================================
   1. 9 mikroservis grid
   ============================================================ */
.about-microservices__grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.4rem;
    margin: 2.5rem 0;
}
.about-microservices__card {
    position: relative;
    background: var(--bg-elevated, rgba(20, 30, 55, 0.6));
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-default, rgba(99, 152, 255, 0.15));
    border-radius: var(--radius-lg, 16px);
    padding: 1.8rem 1.5rem;
    transition: transform .25s, border-color .25s, box-shadow .25s;
    overflow: hidden;
}
.about-microservices__card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 3px;
    background: linear-gradient(90deg, #22d3ee, #8b5cf6);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform .3s;
}
.about-microservices__card:hover {
    transform: translateY(-4px);
    border-color: rgba(34, 211, 238, 0.4);
    box-shadow: 0 12px 40px rgba(34, 211, 238, 0.10);
}
.about-microservices__card:hover::before { transform: scaleX(1); }
.about-microservices__num {
    position: absolute;
    top: 1rem;
    right: 1.2rem;
    font-family: 'JetBrains Mono', monospace;
    font-size: 1rem;
    font-weight: 700;
    color: rgba(34, 211, 238, 0.4);
}
.about-microservices__icon {
    width: 56px;
    height: 56px;
    border-radius: 14px;
    background: linear-gradient(135deg, rgba(34, 211, 238, 0.15), rgba(139, 92, 246, 0.15));
    border: 1px solid rgba(34, 211, 238, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--accent-cyan-glow, #22d3ee);
    margin-bottom: 1rem;
}
.about-microservices__card h3 {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--text-primary, #f1f5f9);
    margin: 0 0 .4rem;
}
.about-microservices__tech {
    color: var(--accent-blue, #3b82f6);
    font-family: 'JetBrains Mono', monospace;
    font-size: .82rem;
    font-weight: 600;
    margin-bottom: .8rem;
}
.about-microservices__card p {
    color: var(--text-secondary, #cbd5e1);
    font-size: .92rem;
    line-height: 1.55;
    margin: 0;
}

.about-microservices__cta {
    text-align: center;
    margin-top: 2.5rem;
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    justify-content: center;
}
.about-cta__primary {
    display: inline-flex;
    align-items: center;
    gap: .6rem;
    padding: .9rem 1.8rem;
    background: linear-gradient(135deg, #22d3ee 0%, #8b5cf6 100%);
    color: #fff !important;
    border-radius: var(--radius-md, 12px);
    text-decoration: none;
    font-weight: 600;
    transition: transform .2s, box-shadow .2s;
    box-shadow: 0 4px 16px rgba(34, 211, 238, 0.25);
}
.about-cta__primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 28px rgba(34, 211, 238, 0.40);
    color: #fff !important;
}
.about-cta__secondary {
    display: inline-flex;
    align-items: center;
    gap: .6rem;
    padding: .9rem 1.8rem;
    background: var(--bg-elevated, rgba(20, 30, 55, 0.6));
    color: var(--text-primary, #f1f5f9) !important;
    border: 1px solid var(--border-default, rgba(99, 152, 255, 0.15));
    border-radius: var(--radius-md, 12px);
    text-decoration: none;
    font-weight: 600;
    transition: transform .2s, border-color .2s;
}
.about-cta__secondary:hover {
    transform: translateY(-2px);
    border-color: var(--accent-cyan-glow, #22d3ee);
    color: var(--text-primary, #f1f5f9) !important;
}

/* ============================================================
   2. Ilmiy hissalar grid
   ============================================================ */
.about-contrib__grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 1.4rem;
    margin: 2.5rem 0;
}
.about-contrib__card {
    background: var(--bg-elevated, rgba(20, 30, 55, 0.6));
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-default, rgba(99, 152, 255, 0.15));
    border-radius: var(--radius-lg, 16px);
    padding: 1.8rem;
    transition: transform .25s, border-color .25s, box-shadow .25s;
}
.about-contrib__card:hover {
    transform: translateY(-3px);
    border-color: rgba(139, 92, 246, 0.4);
    box-shadow: 0 12px 40px rgba(139, 92, 246, 0.10);
}
.about-contrib__head {
    display: flex;
    align-items: center;
    gap: .8rem;
    margin-bottom: 1rem;
}
.about-contrib__head i {
    font-size: 1.6rem;
    background: linear-gradient(135deg, #22d3ee, #8b5cf6);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    flex-shrink: 0;
}
.about-contrib__head h3 {
    margin: 0;
    color: var(--text-primary, #f1f5f9);
    font-size: 1.15rem;
    font-weight: 700;
}
.about-contrib__card p {
    color: var(--text-secondary, #cbd5e1);
    margin-bottom: .8rem;
}
.about-contrib__formula {
    background: rgba(0, 0, 0, 0.45);
    border: 1px solid var(--border-subtle, rgba(99, 152, 255, 0.1));
    color: var(--accent-cyan-glow, #22d3ee);
    padding: .8rem 1rem;
    border-radius: 8px;
    font-family: 'JetBrains Mono', 'Courier New', monospace;
    font-size: .9rem;
    margin: .6rem 0;
    overflow-x: auto;
    white-space: pre;
}
.about-contrib__card ul {
    list-style: none;
    padding: 0;
    margin: 0;
}
.about-contrib__card li {
    padding: .35rem 0;
    color: var(--text-secondary, #cbd5e1);
    border-bottom: 1px solid var(--border-subtle, rgba(99, 152, 255, 0.08));
    font-size: .92rem;
    line-height: 1.5;
}
.about-contrib__card li:last-child { border-bottom: 0; }
.about-contrib__card li strong {
    color: var(--accent-cyan-glow, #22d3ee);
}

/* ============================================================
   3. Compliance grid
   ============================================================ */
.about-compliance__grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 1.2rem;
    margin: 2.5rem 0;
}
.about-compliance__item {
    background: var(--bg-elevated, rgba(20, 30, 55, 0.6));
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-default, rgba(99, 152, 255, 0.15));
    border-radius: var(--radius-md, 12px);
    padding: 1.6rem 1.2rem;
    text-align: center;
    transition: transform .2s, border-color .2s;
}
.about-compliance__item:hover {
    transform: translateY(-3px);
    border-color: var(--accent-cyan-glow, #22d3ee);
}
.about-compliance__flag {
    font-size: 2.4rem;
    line-height: 1;
    margin-bottom: .6rem;
}
.about-compliance__item h4 {
    color: var(--text-primary, #f1f5f9);
    font-size: 1.05rem;
    font-weight: 700;
    margin: 0 0 .3rem;
}
.about-compliance__item small {
    color: var(--text-muted, #94a3b8);
    font-size: .82rem;
    line-height: 1.4;
    display: block;
}

/* ============================================================
   Mobile
   ============================================================ */
@media (max-width: 768px) {
    .about-microservices__grid,
    .about-contrib__grid,
    .about-compliance__grid {
        gap: 1rem;
    }
    .about-microservices__card,
    .about-contrib__card { padding: 1.4rem 1.2rem; }
    .about-contrib__formula { font-size: .82rem; padding: .6rem .8rem; }
    .about-microservices__cta {
        flex-direction: column;
        align-items: stretch;
    }
    .about-cta__primary,
    .about-cta__secondary {
        justify-content: center;
        text-align: center;
    }
}

/* PhD research card link grid */
.about-research__links {
    margin-top: 1.6rem;
    padding-top: 1.4rem;
    border-top: 1px solid rgba(99, 152, 255, 0.15);
}
.about-research__links-label {
    color: var(--text-muted, #94a3b8);
    font-size: .9rem;
    margin: 0 0 .8rem;
    display: flex;
    align-items: center;
    gap: .5rem;
}
.about-research__links-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: .6rem;
}
.about-research__link {
    display: inline-flex;
    align-items: center;
    gap: .5rem;
    padding: .6rem .9rem;
    background: rgba(34, 211, 238, 0.06);
    border: 1px solid rgba(34, 211, 238, 0.18);
    border-radius: 8px;
    color: var(--accent-cyan-glow, #22d3ee) !important;
    text-decoration: none;
    font-size: .88rem;
    font-weight: 500;
    transition: all .2s;
}
.about-research__link:hover {
    background: rgba(34, 211, 238, 0.12);
    border-color: rgba(34, 211, 238, 0.4);
    transform: translateX(2px);
    color: var(--accent-cyan-glow, #22d3ee) !important;
}
.about-research__link i { font-size: .95rem; }
/* ============================================================
   index.php — yangi 3 bo'lim CSS
   ============================================================ */

.home-stack,
.home-usecases,
.home-theorems {
    padding: 5rem 0;
    background: var(--bg-primary, #050810);
    color: var(--text-primary, #f1f5f9);
}
.home-usecases { background: var(--bg-secondary, #0a0f1f); }

.home-stack__head { text-align: center; margin-bottom: 3rem; }
.home-stack__head .hero-badge {
    display: inline-flex;
    background: rgba(34, 211, 238, 0.10);
    border: 1px solid rgba(34, 211, 238, 0.25);
    padding: .35rem 1rem;
    border-radius: 999px;
    font-size: .82rem;
    color: var(--accent-cyan-glow, #22d3ee);
    margin-bottom: 1rem;
}

/* ============================================================
   Stack 4-grid
   ============================================================ */
.home-stack__grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 1.6rem;
}
.home-stack__cat {
    background: var(--bg-elevated, rgba(20, 30, 55, 0.6));
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-default, rgba(99, 152, 255, 0.15));
    border-radius: var(--radius-lg, 16px);
    padding: 1.6rem;
    transition: transform .25s, border-color .25s;
}
.home-stack__cat:hover {
    transform: translateY(-3px);
    border-color: rgba(34, 211, 238, 0.4);
}
.home-stack__cat h4 {
    color: var(--accent-cyan-glow, #22d3ee);
    font-weight: 700;
    font-size: 1.05rem;
    margin: 0 0 1rem;
    padding-bottom: .8rem;
    border-bottom: 1px solid rgba(34, 211, 238, 0.15);
    text-transform: uppercase;
    letter-spacing: .08em;
}
.home-stack__cat ul {
    list-style: none;
    padding: 0;
    margin: 0;
}
.home-stack__cat li {
    color: var(--text-secondary, #cbd5e1);
    padding: .4rem 0;
    font-size: .9rem;
    display: flex;
    align-items: center;
    gap: .55rem;
}
.home-stack__cat i {
    font-size: .8rem;
    color: var(--accent-cyan-glow, #22d3ee);
    flex-shrink: 0;
}
.home-stack__compliance {
    display: flex;
    flex-wrap: wrap;
    gap: .5rem;
    margin-top: .4rem;
}
.comp-badge {
    background: rgba(34, 211, 238, 0.08);
    border: 1px solid rgba(34, 211, 238, 0.2);
    color: var(--text-primary, #f1f5f9);
    padding: .3rem .7rem;
    border-radius: 6px;
    font-size: .82rem;
    font-weight: 500;
}
.home-stack__link {
    display: inline-flex;
    align-items: center;
    gap: .3rem;
    margin-top: 1rem;
    color: var(--accent-cyan-glow, #22d3ee);
    text-decoration: none;
    font-weight: 600;
    font-size: .9rem;
    transition: gap .2s;
}
.home-stack__link:hover {
    gap: .6rem;
    color: var(--accent-cyan-glow, #22d3ee);
}

/* ============================================================
   Use Cases 6-grid
   ============================================================ */
.home-usecase__grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.4rem;
}
.home-usecase__card {
    background: var(--bg-elevated, rgba(20, 30, 55, 0.6));
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-default, rgba(99, 152, 255, 0.15));
    border-radius: var(--radius-lg, 16px);
    padding: 1.8rem;
    transition: transform .25s, border-color .25s, box-shadow .25s;
    text-align: center;
}
.home-usecase__card:hover {
    transform: translateY(-4px);
    border-color: rgba(139, 92, 246, 0.4);
    box-shadow: 0 12px 36px rgba(139, 92, 246, 0.10);
}
.home-usecase__icon {
    width: 64px;
    height: 64px;
    border-radius: 16px;
    background: linear-gradient(135deg, rgba(34, 211, 238, 0.15), rgba(139, 92, 246, 0.15));
    border: 1px solid rgba(34, 211, 238, 0.2);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 1.7rem;
    color: var(--accent-cyan-glow, #22d3ee);
    margin-bottom: 1rem;
}
.home-usecase__card h4 {
    color: var(--text-primary, #f1f5f9);
    font-weight: 700;
    font-size: 1.1rem;
    margin: 0 0 .6rem;
}
.home-usecase__card p {
    color: var(--text-secondary, #cbd5e1);
    font-size: .92rem;
    line-height: 1.55;
    margin: 0;
}

/* ============================================================
   Theorems 3-grid
   ============================================================ */
.home-theorem__grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.4rem;
}
.home-theorem__card {
    background: var(--bg-elevated, rgba(20, 30, 55, 0.6));
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-default, rgba(99, 152, 255, 0.15));
    border-radius: var(--radius-lg, 16px);
    padding: 1.8rem;
    border-top: 3px solid;
    border-image: linear-gradient(90deg, #22d3ee, #8b5cf6) 1;
}
.home-theorem__num {
    color: var(--accent-cyan-glow, #22d3ee);
    font-weight: 700;
    font-size: .82rem;
    letter-spacing: .12em;
    text-transform: uppercase;
    margin-bottom: .4rem;
}
.home-theorem__card h4 {
    color: var(--text-primary, #f1f5f9);
    font-weight: 700;
    margin: .3rem 0 .8rem;
}
.home-theorem__card p {
    color: var(--text-secondary, #cbd5e1);
    font-size: .92rem;
    margin-bottom: .8rem;
}
.home-theorem__formula {
    background: rgba(0, 0, 0, 0.45);
    border: 1px solid rgba(34, 211, 238, 0.18);
    color: var(--accent-cyan-glow, #22d3ee);
    padding: 1rem 1.2rem;
    border-radius: 8px;
    font-family: 'JetBrains Mono', 'Courier New', monospace;
    font-size: .92rem;
    margin: 0;
    overflow-x: auto;
    white-space: pre;
}

.home-stack__cta {
    text-align: center;
    margin-top: 2.5rem;
}

/* ============================================================
   Hero stats — 5 ta uchun mobile-friendly
   ============================================================ */
.hero-stats {
    flex-wrap: wrap;
    justify-content: flex-start !important;
    gap: 1rem !important;
}

/* ============================================================
   Mobile
   ============================================================ */
@media (max-width: 768px) {
    .home-stack,
    .home-usecases,
    .home-theorems {
        padding: 3rem 0;
    }
    .home-stack__cat,
    .home-usecase__card,
    .home-theorem__card {
        padding: 1.4rem;
    }
    .home-theorem__formula {
        font-size: .82rem;
        padding: .8rem 1rem;
    }
    .hero-stats { justify-content: center !important; }
    .hero-stats .stat-item {
        flex: 1 1 calc(33% - 1rem);
        min-width: 90px;
    }
}