/* Portfolio CSS — systems-spec design system */

/* ── Design Tokens ──────────────────────────────────────────────────────────── */
:root {
    --ease-out-cubic:   cubic-bezier(0.33, 1, 0.68, 1);
    --ease-out-expo:    cubic-bezier(0.16, 1, 0.3, 1);
    --ease-in-out-cubic:cubic-bezier(0.65, 0, 0.35, 1);
    --ease-spring:      cubic-bezier(0.34, 1.56, 0.64, 1);
    --dur-fast:  200ms;
    --dur-base:  350ms;
    --dur-slow:  600ms;
    --dur-slower:900ms;

    /* Color */
    --paper:      #F6F5F1;
    --paper-dim:  #EFEDE5;
    --ink:        #1C1F22;
    --slate:      #565F6B;
    --slate-soft: #8B92A0;
    --rule:       #DAD7CD;
    --rule-soft:  #E7E4D9;
    --signal:     #1F7A5C;
    --signal-dim: rgba(31, 122, 92, 0.10);
    --amber:      #B5792A;
    --amber-dim:  rgba(181, 121, 42, 0.12);

    --shadow-sm: 0 1px 2px rgba(28, 31, 34, 0.05);
    --shadow-md: 0 2px 6px rgba(28, 31, 34, 0.06);
    --shadow-lg: 0 4px 16px rgba(28, 31, 34, 0.08);
    --shadow-hover: 0 6px 20px rgba(28, 31, 34, 0.10);

    --font-display: 'Space Grotesk', 'Arial Narrow', sans-serif;
    --font-body: 'IBM Plex Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-data: 'IBM Plex Mono', 'SFMono-Regular', Consolas, monospace;
}

/* Accessibility: honour reduced-motion preference */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

/* ── Reset ──────────────────────────────────────────────────────────────────── */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    line-height: 1.6;
    color: var(--ink);
    background: var(--paper);
    overflow-x: hidden;
}

h1, h2, h3, .logo-text, .hero-title, .section-title {
    font-family: var(--font-display);
}

a { color: inherit; }

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(246, 245, 241, 0.92);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    z-index: 1000;
    padding: 1rem 0;
    transition: background var(--dur-base) var(--ease-out-cubic),
                box-shadow var(--dur-base) var(--ease-out-cubic),
                padding var(--dur-base) var(--ease-out-cubic);
    border-bottom: 1px solid var(--rule);
    will-change: transform;
}

.navbar.scrolled {
    background: rgba(246, 245, 241, 0.98);
    box-shadow: var(--shadow-sm);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 2rem;
}

.nav-logo {
    display: flex;
    flex-direction: column;
}

.logo-text {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--ink);
    line-height: 1.2;
}

.logo-title {
    font-size: 0.85rem;
    color: var(--slate);
    font-weight: 500;
}

/* Domain tags in nav */
.vp-domains {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
    margin-top: 4px;
}
.vp-domain-tag {
    font-size: 10px;
    font-weight: 500;
    letter-spacing: 0.2px;
    padding: 1px 6px;
    border: 1px solid var(--rule);
    color: var(--slate);
}

.nav-menu {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.nav-link {
    color: var(--ink);
    text-decoration: none;
    font-weight: 500;
    transition: color var(--dur-fast) var(--ease-out-cubic);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--signal);
    transition: width var(--dur-base) var(--ease-out-expo);
    transform-origin: left;
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

.nav-link:hover,
.nav-link.active {
    color: var(--signal);
}

.nav-link-assistant {
    color: var(--signal);
    font-weight: 600;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.bar {
    width: 25px;
    height: 2px;
    background: var(--ink);
    margin: 3px 0;
    transition: 0.3s;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding-top: 130px;
    padding-bottom: 40px;
    box-sizing: border-box;
    background:
        repeating-linear-gradient(90deg, rgba(28,31,34,0.035) 0, rgba(28,31,34,0.035) 1px, transparent 1px, transparent 120px),
        var(--paper);
    position: relative;
}

.hero-container {
    max-width: 1200px;
    width: 100%;
    margin: 0 auto;
    padding: 0 2rem;
    position: relative;
    z-index: 2;
}

.hero-kicker {
    font-family: var(--font-data);
    font-size: 0.85rem;
    color: var(--signal);
    margin-bottom: 1.25rem;
    letter-spacing: 0.02em;
}

.hero-title {
    font-size: clamp(2.4rem, 5vw, 4rem);
    font-weight: 600;
    line-height: 1.12;
    color: var(--ink);
    max-width: 18ch;
    margin-bottom: 1.5rem;
}

.hero-subtitle {
    font-size: 1.1rem;
    color: var(--slate);
    max-width: 62ch;
    margin-bottom: 2.5rem;
    line-height: 1.7;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid var(--rule);
    margin-bottom: 2rem;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.btn {
    padding: 0.85rem 1.75rem;
    border: 1px solid var(--ink);
    border-radius: 2px;
    font-weight: 600;
    font-size: 0.95rem;
    text-decoration: none;
    transition: transform var(--dur-base) var(--ease-out-expo),
                background var(--dur-base) var(--ease-out-cubic),
                color var(--dur-base) var(--ease-out-cubic);
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-primary {
    background: var(--ink);
    color: var(--paper);
}

.btn-primary:hover {
    background: var(--signal);
    border-color: var(--signal);
    transform: translate3d(0, -2px, 0);
}

.btn-secondary {
    background: transparent;
    color: var(--ink);
}

.btn-secondary:hover {
    background: var(--ink);
    color: var(--paper);
    transform: translate3d(0, -2px, 0);
}

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

.btn-signal:hover {
    transform: translate3d(0, -2px, 0);
    background: #186a4f;
    border-color: #186a4f;
}

.cert-badges-row {
    display: flex;
    flex-wrap: wrap;
    gap: 1.75rem;
}

.cert-chip {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    text-decoration: none;
    transition: transform 0.25s ease;
}

.cert-chip:hover {
    transform: translateY(-2px);
}

.cert-chip-img {
    width: 40px;
    height: 40px;
    flex-shrink: 0;
    border-radius: 50%;
    overflow: hidden;
    background: #fff;
    border: 1px solid var(--rule);
}

.cert-chip-img img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
}

.cert-chip-label {
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--slate);
    white-space: nowrap;
}

.cert-chip:hover .cert-chip-label {
    color: var(--ink);
}

/* Hero ledger — stat readouts as a divided row */
.ledger {
    display: flex;
    flex-wrap: wrap;
}

.ledger-item {
    flex: 1 1 160px;
    padding: 0 1.75rem;
    border-left: 1px solid var(--rule);
}

.ledger-item:first-child {
    padding-left: 0;
    border-left: none;
}

.ledger-figure {
    display: block;
    font-family: var(--font-data);
    font-size: 1.9rem;
    font-weight: 600;
    color: var(--ink);
    margin-bottom: 0.35rem;
}

.ledger-figure-signal {
    color: var(--signal);
}

.ledger-caption {
    font-size: 0.85rem;
    color: var(--slate);
}

.hero-scroll {
    position: absolute;
    bottom: 1.5rem;
    left: 2rem;
}

.scroll-indicator {
    display: flex;
    align-items: center;
    color: var(--slate);
    font-size: 0.8rem;
    gap: 0.5rem;
}

/* ── Common Section Styles ────────────────────────────────────────────────── */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

section {
    padding: 5rem 0;
    scroll-margin-top: 96px;
}

.section-header {
    text-align: left;
    margin-bottom: 3rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--rule);
}

.section-title {
    font-size: 2rem;
    font-weight: 600;
    color: var(--ink);
    margin-bottom: 0.6rem;
}

.section-subtitle {
    font-size: 1.05rem;
    color: var(--slate);
    max-width: 640px;
    margin: 0;
}

/* About Section */
.about {
    background: var(--paper);
}

.about-content {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 4rem;
    align-items: start;
}

.about-text p {
    margin-bottom: 1.5rem;
    font-size: 1.05rem;
    line-height: 1.8;
    color: var(--slate);
}

.about-highlights {
    display: flex;
    flex-direction: column;
    gap: 0;
    margin-top: 2rem;
}

.highlight-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1.25rem 0;
    border-top: 1px solid var(--rule);
}

.highlight-item i {
    font-size: 1.1rem;
    color: var(--signal);
    margin-top: 0.2rem;
    width: 1.25rem;
}

.highlight-item h4 {
    color: var(--ink);
    font-size: 1rem;
    margin-bottom: 0.4rem;
}

.highlight-item p {
    color: var(--slate);
    margin: 0;
    font-size: 0.92rem;
}

.experience-timeline {
    position: relative;
    padding-left: 1.5rem;
}

.experience-timeline::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0.4rem;
    bottom: 0.4rem;
    width: 1px;
    background: var(--rule);
}

.timeline-item {
    position: relative;
    margin-bottom: 1.75rem;
    padding-left: 1.5rem;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: -0.3125rem;
    top: 0.35rem;
    width: 7px;
    height: 7px;
    background: var(--paper);
    border: 2px solid var(--signal);
    border-radius: 50%;
}

.timeline-year {
    font-family: var(--font-data);
    font-weight: 500;
    color: var(--signal);
    font-size: 0.82rem;
    margin-bottom: 0.35rem;
}

.timeline-content h4 {
    color: var(--ink);
    font-size: 0.98rem;
    margin-bottom: 0.15rem;
}

.timeline-content p {
    color: var(--slate);
    margin: 0;
    font-size: 0.9rem;
}

/* Experience Section — spec rows */
.experience {
    background: var(--paper);
}

.experience-grid {
    display: flex;
    flex-direction: column;
}

.experience-card {
    display: grid;
    grid-template-columns: 240px 1fr;
    gap: 2.5rem;
    padding: 2.5rem 0;
    border-top: 1px solid var(--rule);
}

.experience-grid .experience-card:last-child {
    border-bottom: 1px solid var(--rule);
}

.experience-header {
    display: block;
}

.experience-header h3 {
    color: var(--ink);
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 0.6rem;
    line-height: 1.35;
}

.experience-meta {
    text-align: left;
}

.company {
    font-weight: 500;
    color: var(--slate);
    display: block;
    margin-bottom: 0.3rem;
    font-size: 0.92rem;
}

.period {
    font-family: var(--font-data);
    color: var(--slate-soft);
    font-size: 0.8rem;
}

.experience-content p {
    color: var(--slate);
    margin-bottom: 1.5rem;
    font-size: 1.02rem;
    max-width: 68ch;
}

.achievements {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.achievement-item {
    display: flex;
    align-items: flex-start;
    gap: 0.85rem;
    padding-left: 1.1rem;
    border-left: 2px solid var(--signal);
}

.achievement-item i {
    color: var(--slate-soft);
    font-size: 0.9rem;
    margin-top: 0.25rem;
    width: 1rem;
    text-align: center;
}

.achievement-item h4 {
    color: var(--ink);
    font-size: 0.98rem;
    margin-bottom: 0.4rem;
}

.achievement-item p {
    color: var(--slate);
    margin-bottom: 0.6rem;
    font-size: 0.94rem;
}

.metrics {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.metric {
    font-family: var(--font-data);
    background: transparent;
    color: var(--slate);
    border: 1px solid var(--rule);
    padding: 0.25rem 0.6rem;
    font-size: 0.76rem;
    font-weight: 500;
}

/* Projects Section — work cards */
.projects {
    background: var(--paper-dim);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: 1px;
    background: var(--rule);
    border: 1px solid var(--rule);
}

.work-card {
    background: var(--paper-dim);
    display: flex;
    flex-direction: column;
    transition: background var(--dur-base) var(--ease-out-cubic);
}

.work-card:hover {
    background: var(--paper);
}

.work-card-media {
    height: 64px;
    display: flex;
    align-items: center;
    padding: 0 1.75rem;
    border-bottom: 1px solid var(--rule);
}

.work-card-icon {
    font-size: 1.3rem;
    color: var(--signal);
}

.work-card-body {
    padding: 1.75rem;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.work-card-body h3 {
    color: var(--ink);
    margin-bottom: 0.6rem;
    font-size: 1.05rem;
    font-weight: 600;
}

.work-card-body p {
    color: var(--slate);
    margin-bottom: 1.1rem;
    line-height: 1.6;
    font-size: 0.94rem;
    flex: 1;
}

.work-card-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
    margin-bottom: 0.9rem;
}

.tech-tag {
    font-family: var(--font-data);
    background: transparent;
    color: var(--slate);
    border: 1px solid var(--rule);
    padding: 0.2rem 0.55rem;
    font-size: 0.72rem;
}

.work-card-metrics {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1rem;
    flex-wrap: wrap;
}

.work-card-link {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    color: var(--ink);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.9rem;
    border-top: 1px solid var(--rule);
    padding-top: 1rem;
    margin-top: auto;
    transition: color 0.2s ease;
}

.work-card-link:hover {
    color: var(--signal);
}

/* Skills Section */
.skills {
    background: var(--paper);
}

.domain-skill-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 0;
    border-top: 1px solid var(--rule);
    border-left: 1px solid var(--rule);
}

.domain-skill-card {
    padding: 1.5rem;
    border-right: 1px solid var(--rule);
    border-bottom: 1px solid var(--rule);
}

.domain-skill-title {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--ink);
    margin-bottom: 0.75rem;
}

.domain-skill-bar {
    height: 3px;
    background: var(--rule);
    margin-bottom: 0.9rem;
}

.domain-skill-fill {
    height: 100%;
    background: var(--signal);
}

.domain-skill-sub {
    font-size: 0.82rem;
    color: var(--slate);
    line-height: 1.5;
}

/* Contact Section */
.contact {
    background: var(--paper-dim);
}

.contact-content {
    display: flex;
    justify-content: flex-start;
}

.contact-info {
    max-width: 640px;
    text-align: left;
}

.contact-info h3 {
    color: var(--ink);
    margin-bottom: 1rem;
    font-size: 1.4rem;
    font-weight: 600;
}

.contact-info p {
    color: var(--slate);
    margin-bottom: 2rem;
    line-height: 1.6;
}

.contact-methods {
    display: flex;
    flex-direction: column;
}

.contact-method {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.1rem 0;
    border-top: 1px solid var(--rule);
}

.contact-methods .contact-method:last-child {
    border-bottom: 1px solid var(--rule);
}

.contact-method i {
    font-size: 1.1rem;
    color: var(--signal);
    width: 1.5rem;
}

.contact-method h4 {
    color: var(--ink);
    margin-bottom: 0.15rem;
    font-size: 0.95rem;
}

.contact-method p {
    color: var(--slate);
    margin: 0;
    font-family: var(--font-data);
    font-size: 0.88rem;
}

/* Career CTA */
.career-cta {
    text-align: left;
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.12);
}

.career-cta-caption {
    color: #94a3b8;
    font-size: 0.85rem;
    margin-top: 0.9rem;
}

/* Footer */
.footer {
    background: var(--ink);
    color: var(--paper);
    padding: 2rem 0;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-text p {
    margin: 0;
    color: #9BA3AD;
    font-size: 0.88rem;
}

.footer-text p:first-child {
    color: var(--paper);
}

.footer-links {
    display: flex;
    gap: 1.5rem;
}

.footer-links a {
    color: #9BA3AD;
    text-decoration: none;
    transition: color 0.3s ease;
    font-size: 0.9rem;
}

.footer-links a:hover {
    color: var(--signal);
}

/* Responsive Design */
@media (max-width: 900px) {
    .experience-card {
        grid-template-columns: 1fr;
        gap: 0.75rem;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }

    .nav-toggle {
        display: flex;
    }

    .about-content {
        grid-template-columns: 1fr;
        gap: 2.5rem;
    }

    .contact-content {
        grid-template-columns: 1fr;
    }

    .container {
        padding: 0 1rem;
    }

    .section-title {
        font-size: 1.6rem;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: stretch;
    }

    .hero-actions {
        flex-direction: column;
        align-items: flex-start;
    }

    .ledger {
        flex-wrap: wrap;
        gap: 1.25rem 0;
    }

    .ledger-item {
        flex: 1 1 45%;
        padding: 0 1rem;
    }
}

/* Animation Classes */
.animate-on-scroll {
    opacity: 0;
    transform: translate3d(0, 24px, 0);
    transition: opacity var(--dur-slow) var(--ease-out-expo),
                transform var(--dur-slow) var(--ease-out-expo);
}

.animate-on-scroll.animate {
    opacity: 1;
    transform: translate3d(0, 0, 0);
}

.animate-on-scroll:nth-child(2) { transition-delay: 60ms; }
.animate-on-scroll:nth-child(3) { transition-delay: 120ms; }
.animate-on-scroll:nth-child(4) { transition-delay: 180ms; }
.animate-on-scroll:nth-child(5) { transition-delay: 240ms; }
.animate-on-scroll:nth-child(6) { transition-delay: 300ms; }

/* Loading Animation */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 2px solid var(--rule);
    border-radius: 50%;
    border-top-color: var(--signal);
    animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Hover Effects */
.hover-lift {
    transition: transform 0.3s ease;
}

.hover-lift:hover {
    transform: translateY(-3px);
}

/* Pulse Animation */
.pulse {
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.05); }
    100% { transform: scale(1); }
}

.gradient-text {
    color: var(--signal);
}

/* Project-specific Styles */
.project-hero {
    background:
        repeating-linear-gradient(90deg, rgba(28,31,34,0.035) 0, rgba(28,31,34,0.035) 1px, transparent 1px, transparent 120px),
        var(--paper);
    padding: 150px 0 60px;
    color: var(--ink);
    border-bottom: 1px solid var(--rule);
}

.project-header {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.project-title {
    font-family: var(--font-display);
    font-size: 2.75rem;
    font-weight: 600;
    margin-bottom: 1rem;
    line-height: 1.15;
    color: var(--ink);
}

.project-tagline {
    font-size: 1.15rem;
    margin-bottom: 2rem;
    color: var(--slate);
}

.project-impact {
    display: flex;
    gap: 0;
}

.impact-stat {
    text-align: left;
    padding: 0 1.5rem;
    border-left: 1px solid var(--rule);
}

.impact-stat:first-child {
    padding-left: 0;
    border-left: none;
}

.impact-number {
    display: block;
    font-family: var(--font-data);
    font-size: 2rem;
    font-weight: 600;
    color: var(--signal);
    margin-bottom: 0.4rem;
}

.impact-label {
    font-size: 0.85rem;
    color: var(--slate);
}

.project-architecture-diagram {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1px;
    background: var(--rule);
    border: 1px solid var(--rule);
}

.arch-component {
    background: var(--paper-dim);
    padding: 1.5rem;
    text-align: center;
    transition: background var(--dur-base) var(--ease-out-cubic);
}

.arch-component:hover {
    background: var(--paper);
}

.arch-component i {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    display: block;
    color: var(--signal);
}

.arch-component span {
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--ink);
}

.project-nav {
    background: rgba(246, 245, 241, 0.92);
    backdrop-filter: blur(10px);
    padding: 1rem 0;
    border-bottom: 1px solid var(--rule);
    position: sticky;
    top: 80px;
    z-index: 100;
}

.tabs {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.tab-button {
    padding: 0.7rem 1.25rem;
    border: 1px solid transparent;
    background: transparent;
    color: var(--slate);
    cursor: pointer;
    transition: all var(--dur-fast) var(--ease-out-cubic);
    font-weight: 500;
    font-size: 0.92rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.tab-button:hover {
    color: var(--ink);
    border-color: var(--rule);
}

.tab-button.active {
    background: var(--ink);
    color: var(--paper);
    border-color: var(--ink);
}

.project-content {
    padding: 3rem 0;
}

.content-section {
    margin-bottom: 3rem;
}

.content-section h2 {
    font-family: var(--font-display);
    font-size: 1.75rem;
    font-weight: 600;
    color: var(--ink);
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--rule);
}

.overview-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
}

.overview-text h3 {
    color: var(--ink);
    margin-bottom: 1rem;
    font-size: 1.2rem;
    font-weight: 600;
}

.overview-text p {
    color: var(--slate);
    line-height: 1.8;
    margin-bottom: 1.5rem;
}

.overview-features h3 {
    color: var(--ink);
    margin-bottom: 1.5rem;
    font-size: 1.2rem;
    font-weight: 600;
}

.feature-list {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.feature-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
}

.feature-item i {
    color: var(--signal);
    font-size: 1.1rem;
    margin-top: 0.2rem;
    width: 1.25rem;
    text-align: center;
}

.feature-item h4 {
    color: var(--ink);
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.feature-item p {
    color: var(--slate);
    font-size: 0.92rem;
    margin: 0;
}

.architecture-details {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.arch-layer {
    background: var(--paper-dim);
    padding: 2rem;
    border-left: 2px solid var(--signal);
}

.arch-layer h3 {
    color: var(--ink);
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 600;
}

.arch-layer i {
    color: var(--signal);
}

.layer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1px;
    background: var(--rule);
    border: 1px solid var(--rule);
}

.component-card {
    background: var(--paper);
    padding: 1.5rem;
}

.component-card h4 {
    color: var(--ink);
    margin-bottom: 0.5rem;
    font-size: 1.05rem;
    font-weight: 600;
}

.component-card p {
    color: var(--slate);
    margin-bottom: 1rem;
    line-height: 1.6;
    font-size: 0.94rem;
}

.tech-specs {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.tech-specs span {
    font-family: var(--font-data);
    background: transparent;
    color: var(--slate);
    border: 1px solid var(--rule);
    padding: 0.2rem 0.6rem;
    font-size: 0.76rem;
}

.technical-grid {
    display: grid;
    gap: 3rem;
}

.tech-section h3 {
    color: var(--ink);
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 600;
}

.tech-section i {
    color: var(--signal);
}

.tech-stack {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.tech-item {
    display: flex;
    align-items: flex-start;
    gap: 1.5rem;
    padding: 1.5rem;
    background: var(--paper-dim);
    border-left: 2px solid var(--signal);
}

.tech-icon {
    font-size: 1.6rem;
    color: var(--signal);
    min-width: 40px;
}

.tech-details h4 {
    color: var(--ink);
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.tech-details p {
    color: var(--slate);
    margin-bottom: 0.5rem;
}

.tech-details ul {
    list-style: none;
    padding: 0;
}

.tech-details li {
    color: var(--slate);
    padding: 0.2rem 0;
    position: relative;
    padding-left: 1rem;
}

.tech-details li::before {
    content: '—';
    color: var(--signal);
    position: absolute;
    left: 0;
}

.performance-dashboard {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1px;
    background: var(--rule);
    border: 1px solid var(--rule);
    margin-bottom: 3rem;
}

.metric-card {
    background: var(--paper);
    padding: 2rem;
    text-align: left;
}

.metric-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.metric-header h3 {
    color: var(--ink);
    font-size: 1.05rem;
    font-weight: 600;
    margin: 0;
}

.metric-header i {
    color: var(--signal);
    font-size: 1.3rem;
}

.metric-value {
    margin-bottom: 1rem;
}

.metric-number {
    display: block;
    font-family: var(--font-data);
    font-size: 2.25rem;
    font-weight: 600;
    color: var(--ink);
    margin-bottom: 0.2rem;
}

.metric-unit {
    color: var(--slate);
    font-size: 0.88rem;
}

.metric-comparison {
    display: flex;
    justify-content: flex-start;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.improvement {
    font-family: var(--font-data);
    background: var(--signal-dim);
    color: var(--signal);
    padding: 0.2rem 0.6rem;
    font-size: 0.78rem;
    font-weight: 600;
}

.baseline {
    color: var(--slate-soft);
    font-size: 0.8rem;
}

.devops-tools {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.tool-category h4 {
    color: var(--ink);
    margin-bottom: 1rem;
    font-size: 1.05rem;
    font-weight: 600;
}

.tool-list {
    display: flex;
    flex-direction: column;
}

.tool-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.8rem 0;
    border-top: 1px solid var(--rule);
}

.tool-name {
    font-weight: 600;
    color: var(--ink);
    font-size: 0.94rem;
}

.tool-desc {
    color: var(--slate);
    font-size: 0.88rem;
}

.optimization-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.optimization-item {
    background: var(--paper-dim);
    padding: 1.5rem;
    border-left: 2px solid var(--signal);
}

.optimization-item h4 {
    color: var(--ink);
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 600;
}

.optimization-item i {
    color: var(--signal);
}

.optimization-item ul {
    list-style: none;
    padding: 0;
}

.optimization-item li {
    color: var(--slate);
    padding: 0.3rem 0;
    position: relative;
    padding-left: 1.1rem;
}

.optimization-item li::before {
    content: '✓';
    color: var(--signal);
    position: absolute;
    left: 0;
    font-weight: bold;
}

.performance-charts {
    background: var(--paper-dim);
    padding: 2rem;
}

.performance-charts h3 {
    color: var(--ink);
    margin-bottom: 1.5rem;
    font-weight: 600;
}

.chart-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.chart-section h4 {
    color: var(--ink);
    margin-bottom: 1rem;
    font-size: 1.05rem;
    font-weight: 600;
}

.latency-stats, .throughput-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 1px;
    background: var(--rule);
    border: 1px solid var(--rule);
}

.stat-item {
    background: var(--paper);
    padding: 1rem;
    text-align: center;
}

.stat-label {
    display: block;
    color: var(--slate);
    font-size: 0.85rem;
    margin-bottom: 0.3rem;
}

.stat-value {
    font-family: var(--font-data);
    color: var(--ink);
    font-weight: 600;
    font-size: 1.05rem;
}

.testimonials {
    background: var(--paper-dim);
    padding: 2rem;
    margin-top: 2rem;
}

.testimonials h3 {
    color: var(--ink);
    margin-bottom: 1.5rem;
    font-weight: 600;
}

.testimonial-card {
    background: var(--paper);
    padding: 2rem;
    border-left: 2px solid var(--signal);
}

.testimonial-card blockquote {
    color: var(--slate);
    font-style: italic;
    margin-bottom: 1rem;
    line-height: 1.6;
}

.testimonial-card cite {
    color: var(--signal);
    font-weight: 600;
    font-style: normal;
}

.impact-overview {
    background: var(--paper-dim);
    padding: 2rem;
    margin-bottom: 2rem;
}

.impact-highlight h3 {
    color: var(--ink);
    margin-bottom: 1rem;
    font-size: 1.4rem;
    font-weight: 600;
}

.impact-highlight p {
    color: var(--slate);
    line-height: 1.6;
}

.impact-metrics {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1px;
    background: var(--rule);
    border: 1px solid var(--rule);
}

.impact-category {
    background: var(--paper);
    padding: 2rem;
}

.impact-category h3 {
    color: var(--ink);
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 600;
}

.impact-category i {
    color: var(--signal);
}

.impact-items {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.impact-item {
    padding: 1rem 0 1rem 1rem;
    border-left: 2px solid var(--signal);
}

.impact-item h4 {
    color: var(--ink);
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.impact-item p {
    color: var(--slate);
    margin: 0;
}

/* Responsive styles for project pages */
@media (max-width: 768px) {
    .project-header {
        grid-template-columns: 1fr;
        text-align: left;
    }

    .project-title {
        font-size: 2rem;
    }

    .project-impact {
        flex-wrap: wrap;
    }

    .impact-number {
        font-size: 1.6rem;
    }

    .project-architecture-diagram {
        grid-template-columns: 1fr;
    }

    .tabs {
        flex-direction: column;
    }

    .tab-button {
        justify-content: flex-start;
    }

    .overview-grid {
        grid-template-columns: 1fr;
    }

    .layer-content {
        grid-template-columns: 1fr;
    }

    .performance-dashboard {
        grid-template-columns: 1fr;
    }

    .chart-grid {
        grid-template-columns: 1fr;
    }

    .impact-metrics {
        grid-template-columns: 1fr;
    }

    .devops-tools {
        grid-template-columns: 1fr;
    }

    .optimization-list {
        grid-template-columns: 1fr;
    }
}

/* Blog Styles */
.blog-hero {
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    color: rgb(5, 0, 0);
    padding: 120px 0 80px;
    text-align: center;
}

.blog-title {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1rem;
    animation: fadeInUp 0.8s ease-out;
}

.blog-subtitle {
    font-size: 1.3rem;
    font-weight: 300;
    margin-bottom: 2rem;
    opacity: 0.9;
    animation: fadeInUp 0.8s ease-out 0.2s both;
}

.blog-meta {
    display: flex;
    justify-content: center;
    gap: 2rem;
    font-size: 0.9rem;
    opacity: 0.8;
    animation: fadeInUp 0.8s ease-out 0.4s both;
}

.blog-meta span {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.blog-content {
    padding: 80px 0;
    background: var(--light-bg);
}

.blog-article {
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: 4rem;
    max-width: 1400px;
    margin: 0 auto;
}

.article-content {
    background: rgb(248, 248, 248);
    padding: 3rem;
    border-radius: 12px;
    box-shadow: var(--card-shadow);
    line-height: 1.8;
}

.article-content h2 {
    color: var(--primary-color);
    font-size: 2rem;
    margin: 2.5rem 0 1.5rem;
    font-weight: 600;
}

.article-content h3 {
    color: var(--text-dark);
    font-size: 1.5rem;
    margin: 2rem 0 1rem;
    font-weight: 600;
}

.article-content p {
    margin-bottom: 1.5rem;
    color: var(--text-secondary);
}

.code-block {
    background: #1e1e1e;
    border-radius: 8px;
    padding: 1.5rem;
    margin: 2rem 0;
    overflow-x: auto;
}

.code-block pre {
    margin: 0;
    color: #f8f8f2;
    font-family: 'Fira Code', 'Consolas', monospace;
    font-size: 0.9rem;
    line-height: 1.5;
}

.feature-highlight {
    background: linear-gradient(135deg, #f8f9fa, #e9ecef);
    padding: 2rem;
    border-radius: 8px;
    margin: 2rem 0;
    border-left: 4px solid var(--accent-color);
}

.feature-highlight h4 {
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-weight: 600;
}

.cloud-comparison {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin: 2rem 0;
}

.cloud-option {
    background: white;
    padding: 2rem;
    border-radius: 8px;
    border: 1px solid #eee;
    text-align: center;
}

.cloud-option h4 {
    color: var(--primary-color);
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.cloud-option i {
    font-size: 1.5rem;
}

.cta-section {
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    color: white;
    padding: 3rem;
    border-radius: 12px;
    text-align: center;
    margin: 3rem 0;
}

.cta-button {
    display: inline-block;
    background: white;
    color: var(--primary-color);
    padding: 1rem 2rem;
    border-radius: 6px;
    text-decoration: none;
    font-weight: 600;
    margin-top: 1rem;
    transition: transform 0.3s ease;
}

.cta-button:hover {
    transform: translateY(-2px);
}

.article-sidebar {
    background: white;
    border-radius: 12px;
    padding: 2rem;
    box-shadow: var(--card-shadow);
    height: fit-content;
    position: sticky;
    top: 2rem;
}

.sidebar-section {
    margin-bottom: 2rem;
}

.sidebar-section:last-child {
    margin-bottom: 0;
}

.sidebar-section h3 {
    color: var(--primary-color);
    font-size: 1.2rem;
    margin-bottom: 1rem;
    font-weight: 600;
}

.related-links, .toc-links {
    list-style: none;
    padding: 0;
}

.related-links li, .toc-links li {
    margin-bottom: 0.5rem;
}

.related-links a, .toc-links a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.3s ease;
}

.related-links a:hover, .toc-links a:hover {
    color: var(--primary-color);
}

.blog-navigation {
    background: var(--light-bg);
    padding: 2rem;
    border-radius: 8px;
    margin: 2rem 0;
}

.blog-navigation h3 {
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.blog-tiles {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.blog-tile {
    background: white;
    padding: 2rem;
    border-radius: 8px;
    text-decoration: none;
    color: inherit;
    box-shadow: var(--card-shadow);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    text-align: center;
}

.blog-tile:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.blog-tile i {
    font-size: 2.5rem;
    color: var(--accent-color);
    margin-bottom: 1rem;
}

.blog-tile h4 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.blog-tile p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin: 0;
}

/* Tab Functionality */
.hidden {
    display: none !important;
}

.tab-content {
    display: block;
}

.tab-content.active {
    display: block;
}

/* Responsive Blog Styles */
@media (max-width: 768px) {
    .blog-article {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .article-content {
        padding: 2rem;
    }
    
    .blog-title {
        font-size: 2.2rem;
    }
    
    .blog-tiles {
        grid-template-columns: 1fr;
    }
    
    .cloud-comparison {
        grid-template-columns: 1fr;
    }
}

/* ============= PERSONAL LIFE SECTIONS ============= */

.personal {
    padding: 100px 0;
    background: var(--paper-dim);
    color: var(--ink);
    position: relative;
}

.personal .section-header {
    text-align: left;
    margin-bottom: 60px;
}

.personal .section-title {
    color: var(--ink);
}

.personal .section-subtitle {
    color: var(--slate);
}

.personal-section {
    margin-bottom: 70px;
}

.personal-section:last-child {
    margin-bottom: 0;
}

.personal-title {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 32px;
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--ink);
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--rule);
}

.personal-title i {
    font-size: 1.2rem;
    color: var(--signal);
}

/* ============= COURSES SECTION ============= */

.courses-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(360px, 1fr));
    gap: 1px;
    background: var(--rule);
    border: 1px solid var(--rule);
}

.course-card {
    background: var(--paper-dim);
    overflow: hidden;
}

.course-image {
    height: 160px;
    overflow: hidden;
    position: relative;
    border-bottom: 1px solid var(--rule);
}

.course-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.course-image-mark {
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--paper);
}

.course-image-mark i {
    font-size: 2.75rem;
    color: var(--slate-soft);
}

.course-image-mark img {
    width: auto;
    max-height: 70%;
    object-fit: contain;
}

.course-image-dark {
    background: var(--ink);
}

.course-content {
    padding: 22px;
}

.course-content h4 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--ink);
}

.course-provider {
    color: var(--signal);
    font-weight: 500;
    margin-bottom: 12px;
    font-size: 0.85rem;
}

.course-description {
    color: var(--slate);
    line-height: 1.6;
    margin-bottom: 16px;
    font-size: 0.92rem;
}

.course-badge {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--slate-soft);
    font-family: var(--font-data);
    font-size: 0.78rem;
    font-weight: 500;
}

/* ============= BOOKS SECTION ============= */

.books-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1px;
    background: var(--rule);
    border: 1px solid var(--rule);
}

.book-card {
    background: var(--paper-dim);
    padding: 24px;
    display: flex;
    gap: 20px;
    align-items: flex-start;
}

.book-cover {
    width: 70px;
    height: 96px;
    flex-shrink: 0;
    overflow: hidden;
    border: 1px solid var(--rule);
}

.book-cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.book-info h4 {
    font-size: 1.05rem;
    font-weight: 600;
    margin-bottom: 4px;
    color: var(--ink);
}

.book-author {
    color: var(--signal);
    font-weight: 500;
    margin-bottom: 10px;
    font-size: 0.82rem;
}

.book-insight {
    color: var(--slate);
    font-style: italic;
    line-height: 1.5;
    font-size: 0.9rem;
}

/* ============= TECH EVANGELISM SECTION ============= */

.evangelism-content {
    display: flex;
    flex-direction: column;
}

.evangelism-item {
    padding: 24px 0;
    border-top: 1px solid var(--rule);
    display: flex;
    gap: 20px;
    align-items: flex-start;
}

.evangelism-content .evangelism-item:last-child {
    border-bottom: 1px solid var(--rule);
}

.evangelism-icon {
    background: var(--paper);
    width: 44px;
    height: 44px;
    border: 1px solid var(--rule);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.evangelism-icon i {
    font-size: 1.15rem;
    color: var(--signal);
}

.evangelism-details h4 {
    font-size: 1.05rem;
    font-weight: 600;
    margin-bottom: 10px;
    color: var(--ink);
}

.evangelism-details p {
    color: var(--slate);
    line-height: 1.6;
    margin-bottom: 14px;
    font-size: 0.94rem;
}

.evangelism-tags {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.tag {
    font-family: var(--font-data);
    background: transparent;
    color: var(--slate);
    padding: 3px 10px;
    font-size: 0.74rem;
    border: 1px solid var(--rule);
}

/* ============= TRAVEL SECTION ============= */

.travel-content {
    display: flex;
    flex-direction: column;
    gap: 40px;
}

.travel-region h4 {
    font-size: 1.15rem;
    font-weight: 600;
    margin-bottom: 20px;
    color: var(--ink);
    display: flex;
    align-items: center;
    gap: 10px;
}

.travel-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1px;
    background: var(--rule);
    border: 1px solid var(--rule);
}

.travel-card {
    background: var(--paper-dim);
    overflow: hidden;
}

.travel-card.featured {
    grid-column: 1 / -1;
    max-width: 600px;
    margin: 0 auto;
}

.travel-image {
    height: 150px;
    overflow: hidden;
    position: relative;
    border-bottom: 1px solid var(--rule);
}

.travel-card.featured .travel-image {
    height: 220px;
}

.travel-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.travel-info {
    padding: 18px;
}

.travel-info h5 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 6px;
    color: var(--ink);
}

.travel-info p {
    color: var(--slate);
    line-height: 1.5;
    margin-bottom: 0;
    font-size: 0.88rem;
}

.travel-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--signal);
    text-decoration: none;
    font-weight: 500;
}

.travel-link:hover {
    color: var(--ink);
}

/* ============= PHILOSOPHY SECTION ============= */

.philosophy-content {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.philosophy-card {
    padding: 28px 0;
    border-top: 1px solid var(--rule);
    display: flex;
    gap: 24px;
    align-items: flex-start;
}

.philosophy-icon {
    background: var(--paper);
    width: 44px;
    height: 44px;
    border: 1px solid var(--rule);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.philosophy-icon i {
    font-size: 1.15rem;
    color: var(--signal);
}

.philosophy-details h4 {
    font-size: 1.05rem;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--ink);
}

.philosophy-details p {
    color: var(--slate);
    line-height: 1.6;
    margin-bottom: 16px;
    font-size: 0.94rem;
}

.philosophy-details blockquote {
    border-left: 2px solid var(--signal);
    padding-left: 16px;
    margin: 16px 0;
    font-style: italic;
    color: var(--slate);
}

.philosophy-values {
    padding-top: 28px;
    border-top: 1px solid var(--rule);
}

.philosophy-values h4 {
    font-size: 1.05rem;
    font-weight: 600;
    margin-bottom: 20px;
    color: var(--ink);
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 1px;
    background: var(--rule);
    border: 1px solid var(--rule);
}

.value-item {
    background: var(--paper-dim);
    padding: 18px;
    text-align: left;
}

.value-item i {
    font-size: 1.15rem;
    color: var(--signal);
    margin-bottom: 8px;
    display: block;
}

.value-item span {
    color: var(--ink);
    font-weight: 500;
    font-size: 0.88rem;
}

/* ============= FITNESS SECTION ============= */

.fitness-content {
    display: flex;
    flex-direction: column;
    gap: 40px;
}

.fitness-main {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 40px;
    align-items: center;
}

.fitness-image {
    overflow: hidden;
    border: 1px solid var(--rule);
}

.fitness-image img {
    width: 100%;
    height: 280px;
    object-fit: cover;
}

.fitness-image .slideshow {
    display: block;
    height: 280px;
}

.fitness-details h4 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--ink);
}

.fitness-details p {
    color: var(--slate);
    line-height: 1.6;
    margin-bottom: 22px;
}

.fitness-benefits {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.benefit-item {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    padding-left: 1rem;
    border-left: 2px solid var(--signal);
}

.benefit-item i {
    font-size: 1rem;
    color: var(--slate-soft);
    margin-top: 4px;
}

.benefit-item h5 {
    font-size: 0.95rem;
    font-weight: 600;
    margin-bottom: 4px;
    color: var(--ink);
}

.benefit-item p {
    color: var(--slate);
    font-size: 0.88rem;
    margin: 0;
}

.fitness-philosophy {
    padding-top: 28px;
    border-top: 1px solid var(--rule);
    text-align: left;
}

.fitness-philosophy h4 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--ink);
}

.fitness-philosophy p {
    color: var(--slate);
    line-height: 1.6;
    margin-bottom: 26px;
    max-width: 72ch;
}

.consistency-stats {
    display: flex;
    gap: 0;
    flex-wrap: wrap;
}

.consistency-stats .ledger-item {
    text-align: left;
    flex: 1 1 140px;
    padding: 0 1.5rem;
    border-left: 1px solid var(--rule);
}

.consistency-stats .ledger-item:first-child {
    padding-left: 0;
    border-left: none;
}

.consistency-stats .ledger-figure {
    font-size: 2rem;
}

/* ============= RESPONSIVE DESIGN FOR PERSONAL SECTIONS ============= */

@media (max-width: 768px) {
    .personal {
        padding: 60px 0;
    }

    .personal-title {
        font-size: 1.25rem;
    }

    .courses-grid,
    .books-grid,
    .travel-grid {
        grid-template-columns: 1fr;
    }

    .evangelism-item {
        flex-direction: column;
    }

    .philosophy-card {
        flex-direction: column;
    }

    .values-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .fitness-main {
        grid-template-columns: 1fr;
        gap: 25px;
    }

    .book-card {
        flex-direction: column;
    }
}

/* Slideshow container should fill image wrappers */
.slideshow {
    width: 100%;
    height: 100%;
}

/* ── Tablet breakpoint (1024px) ─────────────────────────────────────────────── */
@media (max-width: 1024px) {
    .nav-menu {
        gap: 1.2rem;
    }

    .nav-link {
        font-size: 0.9rem;
    }

    .about-content {
        gap: 2.5rem;
    }

    .contact-content {
        gap: 2.5rem;
    }
}

/* ── Small mobile (480px) ────────────────────────────────────────────────────── */
@media (max-width: 480px) {
    .hero-subtitle {
        font-size: 1rem;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: stretch;
    }

    .hero-buttons .btn {
        justify-content: center;
    }

    .section-title {
        font-size: 1.5rem;
    }

    .section-subtitle {
        font-size: 0.95rem;
    }

    .container {
        padding: 0 1rem;
    }

    .ops-domains-grid {
        grid-template-columns: repeat(2, 1fr) !important;
    }

    .footer-content {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }

    .footer-links {
        justify-content: center;
    }

    .vp-domains {
        display: none;
    }

    .logo-title {
        font-size: 0.8rem;
    }

    .tech-tag {
        font-size: 0.68rem;
        padding: 0.18rem 0.45rem;
    }
}

/* ── Mobile nav open state ───────────────────────────────────────────────────── */
.nav-menu.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: rgba(246, 245, 241, 0.98);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    padding: 1rem 2rem;
    gap: 0.75rem;
    border-bottom: 1px solid var(--rule);
    box-shadow: var(--shadow-lg);
    animation: slideDown var(--dur-base) var(--ease-out-expo);
}

@keyframes slideDown {
    from { transform: translate3d(0, -12px, 0); opacity: 0; }
    to   { transform: translate3d(0, 0, 0);    opacity: 1; }
}

@media (max-width: 768px) {
    .navbar {
        position: fixed;
    }

    .nav-menu {
        display: none;
    }

    .nav-toggle {
        display: flex;
    }
}

/* ── Ops domain grid responsive ────────────────────────────────────────────────── */
.ops-domains-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 1rem;
}

@media (max-width: 1024px) {
    .ops-domains-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 600px) {
    .ops-domains-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}