/* ==========================================================================
   Genghis Mendoza – Senior Product Designer Portfolio Stylesheet
   Modern, High-Craft Editorial & Systems Design
   ========================================================================== */

:root {
    --bg-page: #fbfbfd;
    --bg-surface: #ffffff;
    --bg-elevated: #f4f5f8;
    --bg-subtle: #f8f9fc;

    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #64748b;
    --text-inverse: #ffffff;

    --brand-primary: #4f46e5;
    /* Tech Indigo */
    --brand-primary-hover: #4338ca;
    --brand-primary-light: #eef2ff;
    --brand-secondary: #0ea5e9;
    /* Sky / Platform Blue */
    --brand-accent: #7c3aed;
    /* Violet */

    --border-subtle: #e2e8f0;
    --border-card: #cbd5e1;
    --border-strong: #94a3b8;

    --badge-google: #2563eb;
    --badge-ge: #0284c7;
    --badge-mixcrate: #d97706;
    --badge-trianz: #059669;
    --badge-telenav: #7c3aed;
    --badge-yahoo: #9333ea;

    --status-active: #10b981;

    --shadow-sm: 0 1px 2px 0 rgba(15, 23, 42, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(15, 23, 42, 0.08), 0 2px 4px -2px rgba(15, 23, 42, 0.05);
    --shadow-lg: 0 12px 24px -4px rgba(15, 23, 42, 0.08), 0 4px 6px -2px rgba(15, 23, 42, 0.04);
    --shadow-xl: 0 20px 30px -6px rgba(15, 23, 42, 0.12), 0 8px 12px -4px rgba(15, 23, 42, 0.06);

    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-full: 9999px;

    --transition-fast: 0.15s ease;
    --transition-base: 0.25s cubic-bezier(0.16, 1, 0.3, 1);
    --transition-smooth: 0.4s cubic-bezier(0.16, 1, 0.3, 1);

    --container-max: 1200px;

    /* Scalable Image Constraints */
    --img-min-width: 260px;
    --img-max-width: 100%;
}

/* Base & Reset */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background-color: var(--bg-page);
    color: var(--text-primary);
    line-height: 1.65;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

/* Accessible focus outline */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible {
    outline: 2px solid var(--brand-primary);
    outline-offset: 3px;
}

.container {
    width: 100%;
    max-width: var(--container-max);
    margin-left: auto;
    margin-right: auto;
    padding-left: 2rem;
    padding-right: 2rem;
}

/* ==========================================================================
   Header & Navigation
   ========================================================================== */

.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background-color: rgba(251, 251, 253, 0.85);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid rgba(226, 232, 240, 0.8);
    transition: background-color var(--transition-base), box-shadow var(--transition-base);
}

.site-header.scrolled {
    box-shadow: var(--shadow-sm);
    background-color: rgba(255, 255, 255, 0.95);
}

.header-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.brand {
    display: inline-flex;
    align-items: center;
    text-decoration: none;
    height: 100%;
    transition: opacity var(--transition-fast), transform var(--transition-fast);
}

.brand:hover {
    opacity: 0.88;
    transform: translateY(-1px);
}

.brand-logo {
    height: clamp(42px, 5.5vh, 48px);
    width: auto;
    max-height: 52px;
    max-width: 240px;
    display: block;
    object-fit: contain;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 1.75rem;
    list-style: none;
}

.nav-link {
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
    transition: color var(--transition-fast);
    padding: 0.4rem 0.2rem;
    position: relative;
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--brand-primary);
    transition: width var(--transition-fast);
}

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

.btn-nav {
    display: inline-flex;
    align-items: center;
    padding: 0.55rem 1.15rem;
    font-size: 0.85rem;
    font-weight: 600;
    background-color: var(--text-primary);
    color: var(--text-inverse);
    border-radius: var(--radius-sm);
    text-decoration: none;
    transition: background-color var(--transition-fast), transform var(--transition-fast);
}

.btn-nav:hover {
    background-color: var(--brand-primary);
    transform: translateY(-1px);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 28px;
    height: 20px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0;
}

.hamburger-bar {
    width: 100%;
    height: 2px;
    background-color: var(--text-primary);
    border-radius: 2px;
    transition: transform var(--transition-fast), opacity var(--transition-fast);
}

/* ==========================================================================
   Buttons & Micro-Components
   ========================================================================== */

.btn-primary,
.btn-secondary,
.btn-tertiary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    font-size: 0.925rem;
    font-weight: 600;
    padding: 0.8rem 1.6rem;
    border-radius: var(--radius-md);
    text-decoration: none;
    transition: all var(--transition-base);
    cursor: pointer;
    border: 1px solid transparent;
}

.btn-primary {
    background-color: var(--text-primary);
    color: var(--text-inverse);
    box-shadow: 0 4px 12px rgba(15, 23, 42, 0.15);
}

.btn-primary:hover {
    background-color: var(--brand-primary);
    transform: translateY(-2px);
    box-shadow: 0 6px 18px rgba(79, 70, 229, 0.3);
}

.btn-secondary {
    background-color: var(--bg-surface);
    color: var(--text-primary);
    border-color: var(--border-subtle);
    box-shadow: var(--shadow-sm);
}

.btn-secondary:hover {
    border-color: var(--brand-primary);
    color: var(--brand-primary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-tertiary {
    background-color: var(--brand-primary-light);
    color: var(--brand-primary);
}

.btn-tertiary:hover {
    background-color: #e0e7ff;
    color: var(--brand-primary-hover);
    transform: translateY(-2px);
}

/* ==========================================================================
   Hero Section
   ========================================================================== */

.hero {
    padding: 5.25rem 0 5.5rem;
    position: relative;
    border-bottom: 1px solid var(--border-subtle);
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(to right,
            rgba(251, 251, 253, 0.98) 0%,
            rgba(251, 251, 253, 0.94) 44%,
            rgba(251, 251, 253, 0.70) 68%,
            rgba(251, 251, 253, 0.25) 90%,
            rgba(251, 251, 253, 0.10) 100%),
        linear-gradient(180deg,
            rgba(251, 251, 253, 0.85) 0%,
            transparent 18%,
            transparent 72%,
            rgba(251, 251, 253, 0.95) 94%,
            rgba(251, 251, 253, 1) 100%),
        url('images/hero-bg-golden-gate.jpg');
    background-size: cover;
    background-position: right center;
    background-repeat: no-repeat;
    z-index: 0;
    pointer-events: none;
}

.hero-container {
    position: relative;
    z-index: 1;
}

.hero-text-block {
    position: relative;
    max-width: 960px;
    z-index: 1;
}

.hero-header-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    background-color: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border: 1px solid rgba(226, 232, 240, 0.9);
    padding: 0.4rem 0.9rem;
    border-radius: var(--radius-full);
    box-shadow: 0 2px 8px rgba(15, 23, 42, 0.06);
    margin-bottom: 1.75rem;
}

.status-indicator {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: var(--status-active);
    box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.2);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% {
        box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.4);
    }

    70% {
        box-shadow: 0 0 0 6px rgba(16, 185, 129, 0);
    }

    100% {
        box-shadow: 0 0 0 0 rgba(16, 185, 129, 0);
    }
}

.status-text {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-secondary);
    letter-spacing: 0.01em;
}

.hero-headline {
    font-family: 'Playfair Display', Georgia, serif;
    font-size: 3.25rem;
    line-height: 1.15;
    font-weight: 700;
    color: var(--text-primary);
    max-width: 980px;
    margin-bottom: 1.75rem;
    letter-spacing: -0.02em;
}

.hero-headline i {
    font-style: italic;
    font-weight: 600;
    color: var(--brand-accent);
}

.hero-summary {
    font-size: 1.15rem;
    line-height: 1.75;
    color: var(--text-secondary);
    max-width: 900px;
    margin-bottom: 2rem;
}

/* Contact Pills */
.contact-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-bottom: 2.25rem;
}

.chip {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background-color: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border: 1px solid rgba(226, 232, 240, 0.9);
    padding: 0.45rem 0.85rem;
    border-radius: var(--radius-full);
    font-size: 0.825rem;
    font-weight: 500;
    color: var(--text-secondary);
    text-decoration: none;
    transition: all var(--transition-fast);
    box-shadow: 0 1px 3px rgba(15, 23, 42, 0.05);
}

.chip:hover:not(.chip-static) {
    background-color: var(--brand-primary-light);
    color: var(--brand-primary);
    border-color: #c7d2fe;
    transform: translateY(-1px);
}

.chip-icon {
    flex-shrink: 0;
    color: var(--brand-primary);
}

.chip-static {
    cursor: default;
    background-color: rgba(248, 250, 252, 0.9);
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 3.5rem;
}

/* Metrics Grid */
.metrics-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 1rem;
}

.metric-card {
    background: rgba(255, 255, 255, 0.88);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(226, 232, 240, 0.9);
    border-radius: var(--radius-md);
    padding: 1.5rem 1.25rem;
    box-shadow: 0 4px 16px rgba(15, 23, 42, 0.06);
    transition: transform var(--transition-base), box-shadow var(--transition-base), background-color var(--transition-base);
}

.metric-card:hover {
    background: rgba(255, 255, 255, 0.98);
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
    border-color: #cbd5e1;
}

.metric-value {
    font-family: 'Playfair Display', serif;
    font-size: 1.95rem;
    font-weight: 700;
    color: var(--brand-primary);
    line-height: 1.1;
    margin-bottom: 0.35rem;
}

.metric-label {
    font-size: 0.825rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-primary);
    margin-bottom: 0.35rem;
}

.metric-sub {
    font-size: 0.775rem;
    color: var(--text-muted);
    line-height: 1.4;
}

/* ==========================================================================
   Section Headers
   ========================================================================== */

.section-heading {
    margin-bottom: 3.5rem;
}

.section-tag {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--brand-primary);
    margin-bottom: 0.75rem;
}

.section-title {
    font-family: 'Playfair Display', Georgia, serif;
    font-size: 2.25rem;
    line-height: 1.2;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.01em;
    margin-bottom: 0.75rem;
}

.section-description {
    font-size: 1.05rem;
    color: var(--text-secondary);
    max-width: 720px;
}

/* ==========================================================================
   Core Competencies Bento Grid
   ========================================================================== */

.competencies-section {
    padding: 6.5rem 0;
    background-color: var(--bg-surface);
}

.competencies-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.75rem;
}

.competency-card {
    background: var(--bg-page);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    padding: 2.5rem 2rem;
    transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
    display: flex;
    flex-direction: column;
}

.competency-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: #cbd5e1;
}

.competency-card.highlight-card {
    background: linear-gradient(180deg, #ffffff 0%, #f7f9ff 100%);
    border-color: #c7d2fe;
}

.card-icon {
    width: 300px;
    max-width: 100%;
    height: 150px;
    border-radius: var(--radius-md);
    background-color: var(--brand-primary-light);
    color: var(--brand-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.card-icon svg {
    width: 52px;
    height: 52px;
}

.card-icon.card-icon-image {
    width: 300px;
    max-width: 100%;
    height: 150px;
    padding: 8px 12px;
    background: linear-gradient(135deg, #ffffff 0%, var(--brand-primary-light) 100%);
    border: 1px solid #c7d2fe;
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    cursor: zoom-in;
    transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
}

.competency-card:hover .card-icon.card-icon-image {
    transform: translateY(-2px) scale(1.04);
    box-shadow: var(--shadow-md);
    border-color: #a5b4fc;
}

.card-icon-thumb {
    width: 100%;
    height: 100%;
    object-fit: contain;
    display: block;
    transition: transform var(--transition-base);
}

.competency-card h3 {
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.75rem;
    letter-spacing: -0.01em;
}

.card-summary {
    font-size: 0.925rem;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.competency-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.85rem;
    margin-top: auto;
}

.competency-list li {
    font-size: 0.875rem;
    color: var(--text-secondary);
    line-height: 1.55;
    position: relative;
    padding-left: 1.25rem;
}

.competency-list li::before {
    content: "•";
    position: absolute;
    left: 0;
    color: var(--brand-primary);
    font-weight: bold;
    font-size: 1.1rem;
    line-height: 1;
}

.competency-list strong {
    color: var(--text-primary);
}

/* ==========================================================================
   Featured Systems & Platform Architecture
   ========================================================================== */

.work-section {
    padding: 6.5rem 0;
    background-color: var(--bg-subtle);
    border-top: 1px solid var(--border-subtle);
    border-bottom: 1px solid var(--border-subtle);
}

.systems-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
}

.system-card {
    background: var(--bg-surface);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    padding: 2.25rem;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
    display: flex;
    flex-direction: column;
}

.system-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: #cbd5e1;
}

.system-card.featured-system {
    grid-column: span 2;
    background: linear-gradient(180deg, #ffffff 0%, #fcfdfe 100%);
    border-color: #cbd5e1;
    border-width: 1.5px;
}

/* ==========================================================================
   Featured System Hero Image Showcase (Google Identity)
   ========================================================================== */

.featured-system-hero {
    margin: 1.25rem 0 2rem 0;
    background: #0f131a;
    border-radius: var(--radius-lg);
    border: 1px solid #1e2433;
    padding: 1.25rem;
    box-shadow: 0 12px 32px -4px rgba(0, 0, 0, 0.35);
}

.hero-preview-trigger {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    width: 100%;
    border-radius: var(--radius-md);
    overflow: hidden;
    cursor: zoom-in;
    background: #090c10;
    border: 1px solid #232b3c;
    min-height: 380px;
    max-height: 520px;
    padding: 1rem;
    box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.3);
}

.hero-display-img {
    width: 100%;
    height: auto;
    max-height: 460px;
    object-fit: contain;
    display: block;
    margin: 0 auto;
    border-radius: var(--radius-sm);
    transition: opacity 0.2s ease, transform var(--transition-base);
}

.hero-preview-trigger:hover .hero-display-img {
    transform: scale(1.015);
}

.hero-screen-caption {
    position: absolute;
    bottom: 14px;
    left: 16px;
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    background: rgba(15, 23, 42, 0.88);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    padding: 0.4rem 0.9rem;
    border-radius: var(--radius-full);
    border: 1px solid rgba(255, 255, 255, 0.14);
    color: #ffffff;
    font-size: 0.8rem;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
    pointer-events: none;
    z-index: 2;
}

.hero-screen-caption .caption-tag {
    color: #38bdf8;
    font-weight: 700;
    text-transform: uppercase;
    font-size: 0.7rem;
    letter-spacing: 0.04em;
}

.hero-screen-caption .caption-text {
    color: #f1f5f9;
    font-weight: 600;
}

.hero-flow-nav {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0.75rem;
    margin-top: 1rem;
}

.hero-nav-btn {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.65rem 0.95rem;
    border-radius: var(--radius-md);
    background: #161b26;
    border: 1px solid #242c3d;
    color: #94a3b8;
    font-family: inherit;
    font-size: 0.825rem;
    cursor: pointer;
    transition: all var(--transition-fast);
    text-align: left;
}

.hero-nav-btn:hover {
    background: #1e2535;
    border-color: #3b82f6;
    color: #ffffff;
    transform: translateY(-1px);
}

.hero-nav-btn.active {
    background: #1e293b;
    border-color: #3b82f6;
    color: #ffffff;
    box-shadow: 0 0 0 1px #3b82f6, 0 4px 12px rgba(59, 130, 246, 0.2);
}

.hero-nav-btn .nav-step {
    font-weight: 800;
    font-size: 0.75rem;
    color: #60a5fa;
    background: rgba(59, 130, 246, 0.15);
    padding: 0.15rem 0.4rem;
    border-radius: 4px;
}

.hero-nav-btn .nav-name {
    font-weight: 600;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.system-meta {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1rem;
    flex-wrap: wrap;
}

.company-badge {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 700;
    padding: 0.25rem 0.65rem;
    border-radius: var(--radius-full);
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.company-badge.google {
    background-color: #eff6ff;
    color: var(--badge-google);
    border: 1px solid #bfdbfe;
}

.company-badge.ge {
    background-color: #f0f9ff;
    color: var(--badge-ge);
    border: 1px solid #bae6fd;
}

.company-badge.mixcrate {
    background-color: #fffbeb;
    color: var(--badge-mixcrate);
    border: 1px solid #fde68a;
}

.company-badge.trianz {
    background-color: #ecfdf5;
    color: var(--badge-trianz);
    border: 1px solid #a7f3d0;
}

.company-badge.telenav {
    background-color: #faf5ff;
    color: var(--badge-telenav);
    border: 1px solid #e9d5ff;
}

.company-badge.yahoo {
    background-color: #faf5ff;
    color: var(--badge-yahoo);
    border: 1px solid #e9d5ff;
}

.system-role {
    font-size: 0.825rem;
    font-weight: 600;
    color: var(--text-secondary);
}

.system-scale {
    font-size: 0.775rem;
    font-weight: 600;
    color: var(--brand-primary);
    margin-left: auto;
}

/* Scalable Card Media with Min/Max Width Constraints & Hover Preview */
.image-preview-trigger {
    position: relative;
    display: block;
    width: 100%;
    margin: 1rem auto 1.35rem auto;
    border-radius: var(--radius-md);
    cursor: zoom-in;
    user-select: none;
    outline: none;
}

.image-preview-trigger:focus-visible {
    outline: 2px solid var(--brand-primary);
    outline-offset: 4px;
}

.system-card img,
.system-card-img,
.scalable-img {
    display: block;
    width: 100%;
    min-width: min(100%, var(--img-min-width, 260px));
    max-width: var(--img-max-width, 100%);
    height: auto;
    object-fit: cover;
    border-radius: var(--radius-md);
    margin: 0 auto;
    border: 1px solid var(--border-subtle);
    box-shadow: var(--shadow-sm);
    background-color: var(--bg-elevated);
    transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
}

/* Hover Micro-interactions */
.image-preview-trigger:hover img,
.system-card:hover .image-preview-trigger img,
.system-card img:hover {
    transform: translateY(-2px) scale(1.02);
    box-shadow: var(--shadow-lg);
    border-color: #cbd5e1;
}

/* Floating Hover Preview Badge */
.preview-overlay-badge {
    position: absolute;
    bottom: 12px;
    right: 12px;
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    padding: 0.35rem 0.75rem;
    background: rgba(15, 23, 42, 0.88);
    color: #ffffff;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.01em;
    border-radius: var(--radius-full);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.25);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border: 1px solid rgba(255, 255, 255, 0.15);
    opacity: 0;
    transform: translateY(6px);
    transition: opacity 0.2s ease, transform 0.2s cubic-bezier(0.16, 1, 0.3, 1);
    pointer-events: none;
    z-index: 2;
}

.image-preview-trigger:hover .preview-overlay-badge,
.image-preview-trigger:focus-visible .preview-overlay-badge {
    opacity: 1;
    transform: translateY(0);
}

.preview-overlay-badge svg {
    color: #38bdf8;
    flex-shrink: 0;
}

/* Optional Image Container for Precision Centering */
.system-image-wrapper {
    width: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    margin: 1rem 0 1.35rem 0;
}

.system-image-wrapper img {
    margin: 0 auto;
}

.system-title {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.3;
    margin-bottom: 0.85rem;
    letter-spacing: -0.01em;
}

.system-summary {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.65;
    margin-bottom: 1.5rem;
}

.system-highlights {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
    background: #f8fafc;
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    padding: 1.15rem;
    margin-bottom: 1.5rem;
}

.highlight-item {
    display: flex;
    flex-direction: column;
}

.highlight-stat {
    font-family: 'Playfair Display', serif;
    font-size: 1.45rem;
    font-weight: 700;
    color: var(--brand-primary);
    line-height: 1.2;
}

.highlight-desc {
    font-size: 0.75rem;
    color: var(--text-secondary);
    line-height: 1.4;
    margin-top: 0.2rem;
}

.system-bullets {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.65rem;
    margin-bottom: 1.5rem;
}

.system-bullets li {
    font-size: 0.875rem;
    color: var(--text-secondary);
    line-height: 1.6;
    position: relative;
    padding-left: 1.25rem;
}

.system-bullets li::before {
    content: "→";
    position: absolute;
    left: 0;
    color: var(--brand-primary);
    font-weight: 600;
}

.system-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: auto;
}

.tag {
    font-size: 0.725rem;
    font-weight: 600;
    padding: 0.25rem 0.65rem;
    background-color: var(--bg-page);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-sm);
    color: var(--text-muted);
}

/* ==========================================================================
   Full Professional Experience Timeline
   ========================================================================== */

.experience-section {
    padding: 6.5rem 0;
    background-color: var(--bg-surface);
}

.timeline-container {
    position: relative;
    padding-left: 2.25rem;
}

.timeline-container::before {
    content: '';
    position: absolute;
    top: 10px;
    bottom: 20px;
    left: 8px;
    width: 2px;
    background: linear-gradient(180deg, var(--brand-primary) 0%, var(--border-subtle) 95%);
}

.timeline-entry {
    position: relative;
    margin-bottom: 3.5rem;
}

.timeline-entry:last-child {
    margin-bottom: 0;
}

.timeline-marker {
    position: absolute;
    top: 8px;
    left: -2.25rem;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background-color: var(--bg-surface);
    border: 3px solid var(--brand-primary);
    box-shadow: 0 0 0 4px rgba(79, 70, 229, 0.15);
    z-index: 2;
}

.timeline-card {
    background: var(--bg-page);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    padding: 2.25rem 2.5rem;
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
}

.timeline-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    border-color: #cbd5e1;
}

.timeline-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 1rem;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
}

.timeline-role {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.3;
    margin-bottom: 0.35rem;
    letter-spacing: -0.01em;
}

.timeline-company {
    display: flex;
    align-items: center;
    gap: 0.65rem;
}

.company-name {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--brand-primary);
}

.company-location {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.company-location::before {
    content: "•";
    margin-right: 0.65rem;
}

.timeline-period {
    font-size: 0.825rem;
    font-weight: 600;
    color: var(--text-secondary);
    background-color: var(--bg-surface);
    border: 1px solid var(--border-subtle);
    padding: 0.35rem 0.85rem;
    border-radius: var(--radius-full);
    white-space: nowrap;
}

.timeline-period.current {
    background-color: var(--brand-primary-light);
    color: var(--brand-primary);
    border-color: #c7d2fe;
}

.timeline-bullet-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.85rem;
}

.timeline-bullet-list li {
    font-size: 0.92rem;
    color: var(--text-secondary);
    line-height: 1.65;
    position: relative;
    padding-left: 1.35rem;
}

.timeline-bullet-list li::before {
    content: "•";
    position: absolute;
    left: 0;
    color: var(--brand-primary);
    font-weight: 700;
    font-size: 1.2rem;
    line-height: 1.2;
}

.timeline-bullet-list strong {
    color: var(--text-primary);
    font-weight: 600;
}

/* ==========================================================================
   Patents, Education & Community Leadership
   ========================================================================== */

.accreditations-section {
    padding: 6.5rem 0;
    background-color: var(--bg-subtle);
    border-top: 1px solid var(--border-subtle);
}

.accreditations-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.accreditation-card {
    background: var(--bg-surface);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    padding: 2.25rem 2rem;
    box-shadow: var(--shadow-sm);
    display: flex;
    flex-direction: column;
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.accreditation-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.accreditation-card.patent-card {
    border-color: #c7d2fe;
    background: linear-gradient(180deg, #ffffff 0%, #f7f9ff 100%);
}

.accreditation-card.leadership-card {
    grid-column: span 1;
}

.accreditation-badge {
    align-self: flex-start;
    font-size: 0.725rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--brand-primary);
    background-color: var(--brand-primary-light);
    padding: 0.25rem 0.65rem;
    border-radius: var(--radius-full);
    margin-bottom: 1.25rem;
}

.accreditation-card h3 {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    letter-spacing: -0.01em;
}

.patent-title {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--brand-primary);
    margin-bottom: 0.85rem;
    line-height: 1.45;
}

.patent-desc {
    font-size: 0.875rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.patent-meta {
    margin-top: auto;
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
    font-size: 0.775rem;
    color: var(--text-muted);
    border-top: 1px solid var(--border-subtle);
    padding-top: 1rem;
}

.education-degree {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.75rem;
}

.education-desc {
    font-size: 0.875rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

.leadership-role {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--brand-primary);
    margin-bottom: 0.25rem;
}

.leadership-period {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-bottom: 1.25rem;
}

.leadership-bullets {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.leadership-bullets li {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.55;
    position: relative;
    padding-left: 1.25rem;
}

.leadership-bullets li::before {
    content: "•";
    position: absolute;
    left: 0;
    color: var(--brand-primary);
    font-weight: bold;
}

/* ==========================================================================
   Contact Section
   ========================================================================== */

.contact-section {
    padding: 6.5rem 0;
    background-color: var(--bg-surface);
    border-top: 1px solid var(--border-subtle);
}

.contact-card-wrapper {
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3.5rem;
    padding: 3.5rem;
    box-shadow: var(--shadow-sm);
}

.contact-info-col {
    display: flex;
    flex-direction: column;
}

.contact-title {
    font-family: 'Playfair Display', Georgia, serif;
    font-size: 2.25rem;
    line-height: 1.2;
    font-weight: 700;
    color: var(--text-primary);
    margin-top: 0.5rem;
    margin-bottom: 1rem;
    letter-spacing: -0.01em;
}

.contact-subtitle {
    font-size: 1rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 2rem;
}

.direct-methods {
    display: flex;
    flex-direction: column;
    gap: 1.15rem;
}

.method-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    background: var(--bg-surface);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    padding: 0.9rem 1.15rem;
    box-shadow: var(--shadow-sm);
}

.method-icon {
    width: 40px;
    height: 40px;
    border-radius: 8px;
    background-color: var(--brand-primary-light);
    color: var(--brand-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.method-details {
    display: flex;
    flex-direction: column;
    flex-grow: 1;
    overflow: hidden;
}

.method-label {
    font-size: 0.725rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
}

.method-value {
    font-size: 0.925rem;
    font-weight: 600;
    color: var(--text-primary);
    text-decoration: none;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.method-value:hover {
    color: var(--brand-primary);
}

.copy-btn {
    background-color: var(--bg-page);
    border: 1px solid var(--border-subtle);
    padding: 0.35rem 0.75rem;
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.copy-btn:hover {
    background-color: var(--brand-primary);
    color: var(--text-inverse);
    border-color: var(--brand-primary);
}

/* Contact Form */
.contact-form-col {
    background: var(--bg-surface);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    padding: 2.25rem;
    box-shadow: var(--shadow-md);
}

.form-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 1.5rem;
    letter-spacing: -0.01em;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1.15rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.form-group label {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-primary);
}

.form-group input,
.form-group textarea {
    padding: 0.85rem 1rem;
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-sm);
    font-family: inherit;
    font-size: 0.9rem;
    color: var(--text-primary);
    background-color: #ffffff;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--brand-primary);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.15);
}

.form-submit-btn {
    width: 100%;
    margin-top: 0.5rem;
    padding: 0.9rem;
}

.form-status {
    font-size: 0.85rem;
    min-height: 1.2rem;
    margin-top: 0.5rem;
    text-align: center;
    font-weight: 500;
}

.form-status.success {
    color: #059669;
}

.form-status.error {
    color: #dc2626;
}

/* ==========================================================================
   Footer
   ========================================================================== */

.site-footer {
    padding: 3rem 0;
    background-color: #0b0f19;
    color: #94a3b8;
    border-top: 1px solid #1e293b;
}

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

.footer-left {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.footer-brand {
    font-size: 1rem;
    font-weight: 700;
    color: #ffffff;
}

.footer-copy {
    font-size: 0.8rem;
    color: #64748b;
}

.footer-links {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.footer-links a {
    color: #94a3b8;
    text-decoration: none;
    font-size: 0.85rem;
    font-weight: 500;
    transition: color var(--transition-fast);
}

.footer-links a:hover {
    color: #ffffff;
}

/* ==========================================================================
   Toast Notification
   ========================================================================== */

.toast {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    background-color: #0f172a;
    color: #ffffff;
    padding: 0.8rem 1.4rem;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-xl);
    font-size: 0.85rem;
    font-weight: 500;
    z-index: 1000;
    opacity: 0;
    pointer-events: none;
    transform: translateY(10px);
    transition: opacity 0.25s ease, transform 0.25s ease;
}

.toast.show {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
}

/* ==========================================================================
   Image Preview Lightbox Modal (+50% Enlargement)
   ========================================================================== */

body.modal-open {
    overflow: hidden !important;
}

.image-preview-modal {
    position: fixed;
    inset: 0;
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1.5rem;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 0.25s ease, visibility 0.25s ease;
}

.image-preview-modal.is-open {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
}

.image-modal-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(15, 23, 42, 0.78);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    transition: opacity 0.25s ease;
}

.image-modal-container {
    position: relative;
    z-index: 2;
    width: auto;
    max-width: 95vw;
    max-height: 94vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.image-modal-card {
    background: var(--bg-surface);
    border-radius: var(--radius-lg);
    box-shadow: 0 25px 60px -15px rgba(0, 0, 0, 0.35), 0 0 0 1px rgba(255, 255, 255, 0.1);
    border: 1px solid var(--border-subtle);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    max-width: 100%;
    max-height: 92vh;
    transform: scale(0.95) translateY(8px);
    transition: transform 0.28s cubic-bezier(0.16, 1, 0.3, 1);
}

.image-preview-modal.is-open .image-modal-card {
    transform: scale(1) translateY(0);
}

.image-modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;
    padding: 1rem 1.5rem;
    background: var(--bg-page);
    border-bottom: 1px solid var(--border-subtle);
}

.modal-meta-group {
    display: flex;
    align-items: center;
    gap: 0.85rem;
    overflow: hidden;
}

.modal-zoom-pill {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--brand-primary);
    background: var(--brand-primary-light);
    border: 1px solid #c7d2fe;
    padding: 0.25rem 0.65rem;
    border-radius: var(--radius-full);
    white-space: nowrap;
    flex-shrink: 0;
}

.modal-image-title {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    letter-spacing: -0.01em;
}

.modal-close-btn {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    border: 1px solid var(--border-subtle);
    background: var(--bg-surface);
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    flex-shrink: 0;
    transition: all var(--transition-fast);
    box-shadow: var(--shadow-sm);
}

.modal-close-btn:hover {
    background: #fee2e2;
    color: #dc2626;
    border-color: #fca5a5;
    transform: scale(1.06);
}

.modal-close-btn:focus-visible {
    outline: 2px solid var(--brand-primary);
    outline-offset: 2px;
}

.image-modal-body {
    padding: 1.5rem;
    background: #f8fafc;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: auto;
    max-height: calc(88vh - 130px);
}

.modal-figure-wrapper {
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    max-width: 100%;
}

.modal-enlarged-img {
    display: block;
    width: auto;
    max-width: min(92vw, 1200px);
    max-height: 68vh;
    height: auto;
    object-fit: contain;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg), 0 10px 25px -5px rgba(15, 23, 42, 0.12);
    border: 1px solid var(--border-subtle);
    background: #ffffff;
    transition: width 0.2s ease;
}

.image-modal-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;
    padding: 0.85rem 1.5rem;
    background: var(--bg-page);
    border-top: 1px solid var(--border-subtle);
    font-size: 0.825rem;
}

.modal-caption {
    color: var(--text-secondary);
    font-weight: 500;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 60%;
}

.modal-footer-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex-shrink: 0;
}

.modal-shortcut-hint {
    color: var(--text-muted);
    font-size: 0.775rem;
}

.modal-shortcut-hint kbd {
    display: inline-block;
    padding: 0.15rem 0.4rem;
    font-family: inherit;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-primary);
    background: var(--bg-surface);
    border: 1px solid var(--border-card);
    border-radius: 4px;
    box-shadow: 0 1px 1px rgba(0, 0, 0, 0.1);
}

.btn-modal-dismiss {
    padding: 0.4rem 0.9rem;
    font-size: 0.8rem;
    font-weight: 600;
    background: var(--bg-surface);
    border: 1px solid var(--border-subtle);
    color: var(--text-primary);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.btn-modal-dismiss:hover {
    background: var(--text-primary);
    color: var(--text-inverse);
    border-color: var(--text-primary);
}

/* ==========================================================================
   Responsive Breakpoints
   ========================================================================== */

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

    .competencies-grid,
    .accreditations-grid {
        grid-template-columns: 1fr;
    }

    .accreditation-card.leadership-card {
        grid-column: span 1;
    }

    .contact-card-wrapper {
        grid-template-columns: 1fr;
        padding: 2.5rem;
        gap: 2.5rem;
    }
}

@media (max-width: 768px) {
    .brand-logo {
        height: 34px;
    }

    .hero::before {
        background-image:
            linear-gradient(180deg,
                rgba(251, 251, 253, 0.96) 0%,
                rgba(251, 251, 253, 0.92) 50%,
                rgba(251, 251, 253, 0.88) 75%,
                rgba(251, 251, 253, 0.98) 100%),
            url('images/hero-bg-golden-gate.jpg');
        background-position: center center;
    }

    .hero-headline {
        font-size: 2.35rem;
    }

    .section-title {
        font-size: 1.85rem;
    }

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

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

    .system-card.featured-system {
        grid-column: span 1;
    }

    .hero-flow-nav {
        grid-template-columns: repeat(2, 1fr);
        gap: 0.5rem;
    }

    .hero-preview-trigger {
        min-height: 220px;
        max-height: 320px;
        padding: 0.5rem;
    }

    .hero-display-img {
        max-height: 280px;
    }

    .hero-screen-caption {
        bottom: 8px;
        left: 8px;
        font-size: 0.725rem;
        padding: 0.25rem 0.65rem;
    }

    .system-highlights {
        grid-template-columns: 1fr;
    }

    .timeline-container {
        padding-left: 1.5rem;
    }

    .timeline-marker {
        left: -1.5rem;
    }

    .timeline-card {
        padding: 1.75rem;
    }

    .nav-toggle {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        top: 72px;
        left: 0;
        right: 0;
        background-color: var(--bg-surface);
        border-bottom: 1px solid var(--border-subtle);
        box-shadow: var(--shadow-xl);
        padding: 1.75rem 2rem;
        display: none;
    }

    .nav-menu.is-active {
        display: block;
    }

    .nav-links {
        flex-direction: column;
        align-items: flex-start;
        gap: 1.25rem;
    }

    .btn-nav {
        width: 100%;
        justify-content: center;
    }

    .footer-container {
        flex-direction: column;
        align-items: flex-start;
    }
}

@media (max-width: 480px) {
    .metrics-grid {
        grid-template-columns: 1fr;
    }

    .hero-actions {
        flex-direction: column;
    }

    .hero-actions a {
        width: 100%;
    }
}