/* ==========================================================================
   PM PORTFOLIO — THEME VARIABLES & SYSTEM CONFIG
   ========================================================================== */

:root {
    /* Fonts */
    --font-sans: 'Geist', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    --font-mono: 'Geist Mono', SFMono-Regular, Consolas, Menlo, monospace;

    /* Transition Curves */
    --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
    --transition-fast: 0.15s var(--ease-out-expo);
    --transition-smooth: 0.25s var(--ease-out-expo);
}

/* Dark Theme Variables (Default) */
html[data-theme="dark"] {
    --bg-app: #09090b;
    --bg-card: #0e0e11;
    --bg-modal: #121215;
    --bg-hover: #18181b;
    --border-main: #1f1f23;
    --border-focus: #3f3f46;
    
    --text-main: #fafafa;
    --text-mid: #a1a1aa;
    --text-muted: #52525b;
    
    --accent: #e06b4e; /* Warm clay/amber */
    --accent-muted: rgba(224, 107, 78, 0.1);
    
    --shadow-premium: 0 16px 40px rgba(0, 0, 0, 0.4);
    --grid-line: rgba(255, 255, 255, 0.02);
}

/* Light Theme Variables */
html[data-theme="light"] {
    --bg-app: #fcfcfd;
    --bg-card: #f4f4f5;
    --bg-modal: #ffffff;
    --bg-hover: #e4e4e7;
    --border-main: #e4e4e7;
    --border-focus: #a1a1aa;
    
    --text-main: #09090b;
    --text-mid: #52525b;
    --text-muted: #a1a1aa;
    
    --accent: #d05a3d; /* Deeper clay/amber for legibility */
    --accent-muted: rgba(208, 90, 61, 0.08);
    
    --shadow-premium: 0 16px 40px rgba(0, 0, 0, 0.06);
    --grid-line: rgba(0, 0, 0, 0.02);
}

/* ==========================================================================
   RESET & FOUNDATIONS
   ========================================================================== */

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

html, body {
    height: 100%;
    background-color: var(--bg-app);
    color: var(--text-mid);
    font-family: var(--font-sans);
    font-size: 15px;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow: hidden;
    transition: background-color var(--transition-smooth), color var(--transition-smooth);
}

a {
    color: inherit;
    text-decoration: none;
    transition: color var(--transition-fast);
}

button {
    background: none;
    border: none;
    color: inherit;
    font-family: inherit;
    font-size: inherit;
    cursor: pointer;
}

/* ==========================================================================
   LAYOUT: SIDEBAR & VIEWPORT
   ========================================================================== */

.app-layout {
    display: grid;
    grid-template-columns: 280px 1fr;
    height: 100vh;
    width: 100vw;
    position: relative;
    z-index: 10;
}

/* Sidebar Styling */
.app-sidebar {
    background-color: var(--bg-app);
    border-right: 1px solid var(--border-main);
    display: flex;
    flex-direction: column;
    height: 100vh;
    padding: 2.5rem 1.75rem;
    overflow-y: auto;
    z-index: 20;
    transition: border-color var(--transition-smooth);
}

.sidebar-header {
    margin-bottom: 2.5rem;
}

.branding-link {
    display: inline-block;
}

.nav-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-main);
    letter-spacing: -0.02em;
    margin-bottom: 0.25rem;
}

.nav-subtitle {
    font-size: 0.9rem;
    font-weight: 400;
    color: var(--text-mid);
}

.nav-location {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-top: 0.5rem;
}

/* Navigation Items */
.sidebar-nav {
    flex-grow: 1;
}

.sidebar-nav ul {
    list-style: none;
}

.sidebar-nav li {
    margin-bottom: 0.35rem;
}

.nav-item {
    display: flex;
    align-items: center;
    padding: 0.6rem 0.75rem;
    border-radius: 6px;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-mid);
    position: relative;
    transition: background-color var(--transition-fast), color var(--transition-fast);
}

.nav-item:hover {
    background-color: var(--bg-hover);
    color: var(--text-main);
}

.nav-item.active {
    background-color: var(--bg-hover);
    color: var(--text-main);
}

.nav-item:focus-visible {
    outline: 1.5px solid var(--accent);
    outline-offset: -1px;
    background-color: var(--bg-hover);
    color: var(--text-main);
}

.nav-icon {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    width: 1.5rem;
    color: var(--text-muted);
    transition: color var(--transition-fast);
}

.nav-item.active .nav-icon {
    color: var(--accent);
}

.nav-text {
    flex-grow: 1;
}

.nav-shortcut {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--text-muted);
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.nav-item:hover .nav-shortcut {
    opacity: 1;
}

/* Sidebar Footer */
.sidebar-footer {
    margin-top: auto;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.contact-links {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.contact-link {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-muted);
    padding: 0.25rem 0.75rem;
}

.contact-link:hover {
    color: var(--text-main);
}

.arrow-up-right {
    font-size: 0.7rem;
    opacity: 0.5;
    transition: transform var(--transition-fast);
}

.contact-link:hover .arrow-up-right {
    transform: translate(1px, -1px);
    opacity: 1;
}

/* Utility bar */
.sidebar-utils {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    border-top: 1px solid var(--border-main);
    padding-top: 1.25rem;
    width: 100%;
}

.cmd-trigger-btn {
    flex-grow: 1;
    height: 2.25rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0 0.75rem;
    font-size: 0.85rem;
    color: var(--text-muted);
    border: 1px solid var(--border-main);
    border-radius: 4px;
    background-color: var(--bg-card);
    transition: border-color var(--transition-fast), color var(--transition-fast), background-color var(--transition-fast);
}

.cmd-trigger-btn:hover {
    border-color: var(--border-focus);
    color: var(--text-main);
    background-color: var(--bg-hover);
}

.theme-toggle-btn {
    width: 2.25rem;
    height: 2.25rem;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1.5px solid var(--border-focus); /* Highly visible default border */
    border-radius: 4px;
    background-color: var(--bg-card); /* Highly visible default background */
    color: var(--text-main); /* High contrast default icon color */
    transition: border-color var(--transition-fast), color var(--transition-fast), background-color var(--transition-fast), transform var(--transition-fast);
}

.theme-toggle-btn:hover {
    border-color: var(--accent);
    background-color: var(--bg-hover);
    color: var(--accent);
    transform: scale(1.05);
}

html[data-theme="dark"] .theme-icon-light { display: none; }
html[data-theme="light"] .theme-icon-dark { display: none; }

/* Main Content Area */
.app-viewport {
    height: 100vh;
    overflow-y: auto;
    padding: 5rem clamp(1.5rem, 5vw, 4.5rem);
    position: relative;
    scroll-behavior: smooth;
}

.content-container {
    max-width: 760px;
    margin: 0 auto;
    position: relative;
}

/* ==========================================================================
   DYNAMIC VIEWS & TRANSITIONS
   ========================================================================== */

.tab-view {
    display: none;
    opacity: 0;
    transform: translateY(8px);
}

.tab-view.active {
    display: block;
    animation: slideUpFade var(--transition-smooth) forwards;
}

@keyframes slideUpFade {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* View Header */
.view-header {
    margin-bottom: 3.5rem;
}

.view-title {
    font-size: clamp(1.75rem, 3.5vw + 0.6rem, 2.25rem);
    font-weight: 500;
    color: var(--text-main);
    letter-spacing: -0.03em;
    margin-bottom: 0.5rem;
}

.view-description {
    font-size: 1.05rem;
    color: var(--text-mid);
    font-weight: 400;
    max-width: 600px;
}

/* ==========================================================================
   COMPONENTS: OVERVIEW
   ========================================================================== */

.intro-block {
    margin-bottom: 4rem;
}

.hero-statement {
    font-size: clamp(1.35rem, 2.2vw + 0.8rem, 1.85rem);
    font-weight: 500;
    line-height: 1.4;
    color: var(--text-main);
    letter-spacing: -0.02em;
    margin-bottom: 2rem;
}

.hero-body {
    font-size: 1.05rem;
    line-height: 1.7;
    color: var(--text-mid);
}

.hero-body strong {
    color: var(--text-main);
    font-weight: 500;
}

.grid-summary {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    border-top: 1px solid var(--border-main);
    padding-top: 3rem;
    margin-bottom: 4rem;
}

.col-title {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    margin-bottom: 1.25rem;
}

.list-minimal {
    list-style: none;
}

.list-minimal li {
    font-size: 0.95rem;
    color: var(--text-main);
    margin-bottom: 0.6rem;
    position: relative;
    padding-left: 1.25rem;
}

.list-minimal li::before {
    content: "→";
    position: absolute;
    left: 0;
    color: var(--accent);
    font-family: var(--font-mono);
}

.edu-item {
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
}

.edu-meta {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-main);
}

.edu-date {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--text-muted);
}

.edu-grade {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--accent);
}

.featured-indicator {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    border: 1px solid var(--border-main);
    background-color: var(--bg-card);
    padding: 0.75rem 1rem;
    border-radius: 6px;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--text-mid);
}

.kb-key {
    background-color: var(--bg-hover);
    border: 1px solid var(--border-main);
    border-radius: 3px;
    padding: 0.05rem 0.3rem;
    font-size: 0.75rem;
    color: var(--text-main);
}

.pulsing-dot {
    width: 6px;
    height: 6px;
    background-color: var(--accent);
    border-radius: 50%;
    position: relative;
}

.pulsing-dot::after {
    content: "";
    position: absolute;
    width: 100%;
    height: 100%;
    background-color: var(--accent);
    border-radius: 50%;
    animation: pulse 1.8s infinite ease-in-out;
}

@keyframes pulse {
    0% { transform: scale(1); opacity: 0.8; }
    100% { transform: scale(3.5); opacity: 0; }
}

/* ==========================================================================
   COMPONENTS: EXPERIENCE & PRODUCT SPECS (TIMELINE/SPEC LIST)
   ========================================================================== */

.spec-list {
    display: flex;
    flex-direction: column;
    gap: 4rem;
}

.spec-item {
    border-bottom: 1px solid var(--border-main);
    padding-bottom: 4rem;
}

.spec-item:last-child {
    border-bottom: none;
}

.spec-meta {
    margin-bottom: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.spec-title {
    font-size: clamp(1.15rem, 1.2vw + 0.85rem, 1.35rem);
    font-weight: 600;
    color: var(--text-main);
    letter-spacing: -0.02em;
}

.spec-role, .spec-org {
    font-size: 0.95rem;
    color: var(--text-main);
    font-weight: 500;
}

.spec-org {
    color: var(--text-mid);
}

.spec-date {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--text-muted);
}

.spec-loc {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-muted);
}

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

.spec-section {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.spec-subtitle {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
}

.nested-proj-title {
    font-size: 1rem;
    font-weight: 500;
    color: var(--text-main);
}

.spec-body p {
    font-size: 0.95rem;
    color: var(--text-mid);
}

.spec-body strong {
    color: var(--text-main);
    font-weight: 480;
}

/* Product Spec Metric Cards Grid */
.spec-header-row {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

.spec-header-row .spec-meta {
    margin-bottom: 0;
}

.btn-action {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-mid);
    border: 1px solid var(--border-main);
    padding: 0.4rem 0.75rem;
    border-radius: 4px;
    background-color: var(--bg-card);
    transition: border-color var(--transition-fast), color var(--transition-fast);
}

.btn-action:hover {
    border-color: var(--border-focus);
    color: var(--text-main);
}

.spec-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
    margin-bottom: 2rem;
}

.spec-metric-card {
    border: 1px solid var(--border-main);
    background-color: var(--bg-card);
    padding: 1rem;
    border-radius: 6px;
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.metric-val {
    font-size: 1.4rem;
    font-weight: 600;
    color: var(--accent);
    letter-spacing: -0.02em;
}

.metric-lbl {
    font-size: 0.75rem;
    color: var(--text-muted);
    line-height: 1.2;
}

/* ==========================================================================
   COMPONENTS: ACHIEVEMENTS TABLE
   ========================================================================== */

.ach-table-wrapper {
    width: 100%;
    overflow-x: auto;
    border: 1px solid var(--border-main);
    border-radius: 6px;
    background-color: var(--bg-card);
}

.ach-table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
    font-size: 0.9rem;
}

.ach-table th, .ach-table td {
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--border-main);
}

.ach-table tr:last-child th, .ach-table tr:last-child td {
    border-bottom: none;
}

.ach-table th {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    font-weight: 500;
    background-color: rgba(0,0,0,0.02);
}

html[data-theme="dark"] .ach-table th {
    background-color: rgba(255,255,255,0.01);
}

.ach-table td {
    color: var(--text-mid);
    line-height: 1.5;
}

.font-medium {
    font-weight: 500;
    color: var(--text-main);
}

.font-mono {
    font-family: var(--font-mono);
}

.text-right {
    text-align: right;
}

.text-accent {
    color: var(--text-main);
    font-weight: 500;
}

/* ==========================================================================
   COMPONENTS: STACK & COURSEWORK
   ========================================================================== */

.stack-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
}

.stack-card {
    border: 1px solid var(--border-main);
    background-color: var(--bg-card);
    padding: 1.75rem;
    border-radius: 6px;
}

.span-all {
    grid-column: span 2;
}

.stack-card-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-main);
    margin-bottom: 1.25rem;
    letter-spacing: -0.01em;
}

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

.tech-pill {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    background-color: var(--bg-hover);
    color: var(--text-main);
    padding: 0.35rem 0.65rem;
    border-radius: 4px;
    border: 1px solid var(--border-main);
}

.course-section {
    margin-bottom: 1.25rem;
}

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

.course-category {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.4rem;
}

.course-text {
    font-size: 0.95rem;
    color: var(--text-mid);
    line-height: 1.5;
}

/* ==========================================================================
   COMMAND PALETTE OVERLAY
   ========================================================================== */

.cmd-palette-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background-color: rgba(0, 0, 0, 0.50);
    backdrop-filter: blur(8px);
    z-index: 100;
    display: flex;
    align-items: flex-start;
    justify-content: center;
    padding-top: 15vh;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-fast);
}

.cmd-palette-backdrop.open {
    opacity: 1;
    pointer-events: auto;
}

.cmd-palette-dialog {
    width: 100%;
    max-width: 640px;
    background-color: var(--bg-modal);
    border: 1px solid var(--border-main);
    border-radius: 12px;
    box-shadow: var(--shadow-premium);
    overflow: hidden;
    transform: scale(0.97) translateY(-4px);
    transition: transform var(--transition-fast);
}

.cmd-palette-backdrop.open .cmd-palette-dialog {
    transform: scale(1) translateY(0);
}

/* Search Header */
.cmd-palette-header {
    display: flex;
    align-items: center;
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--border-main);
}

.cmd-palette-search-icon {
    font-size: 1.1rem;
    margin-right: 0.75rem;
    color: var(--text-muted);
}

.cmd-palette-input {
    flex-grow: 1;
    background: none;
    border: none;
    color: var(--text-main);
    font-family: var(--font-sans);
    font-size: 1.1rem;
    outline: none;
}

.cmd-palette-input::placeholder {
    color: var(--text-muted);
}

.cmd-palette-close {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--text-muted);
    border: 1px solid var(--border-main);
    padding: 0.15rem 0.4rem;
    border-radius: 4px;
    background-color: var(--bg-hover);
}

/* Suggestions & Search Results body */
.cmd-palette-body {
    max-height: 320px;
    overflow-y: auto;
    padding: 0.5rem 0;
}

.suggestions-label {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    padding: 0.75rem 1.5rem 0.4rem;
}

.cmd-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.75rem 1.5rem;
    cursor: pointer;
    transition: background-color var(--transition-fast);
}

.cmd-item-left {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.cmd-item-icon {
    font-family: var(--font-mono);
    color: var(--text-muted);
}

.cmd-item-text {
    color: var(--text-mid);
    font-size: 0.95rem;
}

.cmd-item-desc {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-left: 0.5rem;
}

.cmd-item-badge {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    background-color: var(--bg-hover);
    color: var(--text-muted);
    padding: 0.1rem 0.4rem;
    border-radius: 3px;
    border: 1px solid var(--border-main);
}

.cmd-item:hover, .cmd-item.selected {
    background-color: var(--bg-hover);
}

.cmd-item:hover .cmd-item-text, .cmd-item.selected .cmd-item-text {
    color: var(--text-main);
}

.cmd-item:hover .cmd-item-icon, .cmd-item.selected .cmd-item-icon {
    color: var(--accent);
}

.cmd-no-results {
    padding: 2rem 1.5rem;
    text-align: center;
    color: var(--text-muted);
    font-size: 0.95rem;
}

/* Palette Footer */
.cmd-palette-footer {
    display: flex;
    align-items: center;
    gap: 1.25rem;
    padding: 0.75rem 1.5rem;
    border-top: 1px solid var(--border-main);
    background-color: rgba(0, 0, 0, 0.05);
    font-size: 0.75rem;
    color: var(--text-muted);
}

html[data-theme="dark"] .cmd-palette-footer {
    background-color: rgba(255, 255, 255, 0.01);
}

.kbd-helper {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.kbd-helper kbd {
    background-color: var(--bg-hover);
    border: 1px solid var(--border-main);
    border-radius: 3px;
    padding: 0.05rem 0.25rem;
    font-family: var(--font-mono);
    color: var(--text-mid);
}

.hidden {
    display: none !important;
}

/* ==========================================================================
   MOBILE & RESPONSIVE LAYOUTS
   ========================================================================== */

/* Mobile Nav Bar - Hidden on Desktop */
.mobile-nav-bar {
    display: none;
}

.mobile-menu-overlay {
    display: none;
}

/* 1. Landscape Tablets & Small Desktops (841px — 1024px) */
@media (max-width: 1024px) {
    .app-layout {
        grid-template-columns: 240px 1fr;
    }
    .app-sidebar {
        padding: 2.5rem 1.25rem;
    }
}

@media (max-width: 840px) {
    .app-layout {
        grid-template-columns: 1fr;
        grid-template-rows: auto 1fr;
        height: 100vh;
        overflow: hidden;
    }

    .app-sidebar {
        display: none; /* Hide sidebar, use mobile dropdown menu */
    }

    .app-viewport {
        padding: 6rem 1.5rem 3rem;
    }

    /* Mobile Header Layout */
    .mobile-nav-bar {
        display: flex;
        justify-content: space-between;
        align-items: center;
        position: fixed;
        top: 0;
        left: 0;
        width: 100vw;
        background-color: var(--bg-app);
        border-bottom: 1px solid var(--border-main);
        padding: 1.25rem 1.5rem;
        z-index: 90;
        transition: background-color var(--transition-smooth), border-color var(--transition-smooth);
    }

    .mobile-branding {
        font-size: 1.15rem;
        font-weight: 600;
        color: var(--text-main);
        letter-spacing: -0.02em;
    }

    .mobile-menu-btn {
        width: 2.25rem;
        height: 2.25rem;
        display: flex;
        align-items: center;
        justify-content: center;
        border: 1px solid var(--border-main);
        border-radius: 4px;
        background-color: var(--bg-card);
    }

    .hamburger {
        width: 16px;
        height: 2px;
        background-color: var(--text-mid);
        position: relative;
        display: inline-block;
        transition: background-color var(--transition-fast);
    }

    .hamburger::before, .hamburger::after {
        content: "";
        width: 16px;
        height: 2px;
        background-color: var(--text-mid);
        position: absolute;
        left: 0;
        transition: transform var(--transition-fast);
    }

    .hamburger::before { top: -5px; }
    .hamburger::after { top: 5px; }

    /* Open mobile menu state */
    .mobile-menu-btn.open .hamburger {
        background-color: transparent;
    }

    .mobile-menu-btn.open .hamburger::before {
        transform: rotate(45deg);
        top: 0;
    }

    .mobile-menu-btn.open .hamburger::after {
        transform: rotate(-45deg);
        top: 0;
    }

    /* Mobile Dropdown Menu */
    .mobile-menu-overlay {
        display: flex;
        flex-direction: column;
        justify-content: space-between;
        position: fixed;
        top: 4.8rem;
        left: 0;
        width: 100vw;
        height: calc(100vh - 4.8rem);
        background-color: var(--bg-app);
        z-index: 85;
        padding: 3rem 2rem;
        opacity: 0;
        transform: translateY(-8px);
        pointer-events: none;
        transition: opacity var(--transition-smooth), transform var(--transition-smooth);
        border-top: 1px solid var(--border-main);
    }

    .mobile-menu-overlay.open {
        opacity: 1;
        transform: translateY(0);
        pointer-events: auto;
    }

    .mobile-nav ul {
        list-style: none;
        display: flex;
        flex-direction: column;
        gap: 1.5rem;
    }

    .mobile-nav-item {
        font-size: 1.5rem;
        font-weight: 500;
        color: var(--text-mid);
    }

    .mobile-nav-item.active {
        color: var(--accent);
    }

    .mobile-contact {
        display: flex;
        gap: 1.5rem;
        border-top: 1px solid var(--border-main);
        padding-top: 2rem;
        font-family: var(--font-mono);
        font-size: 0.85rem;
        color: var(--text-muted);
    }

    .mobile-contact a:hover {
        color: var(--text-main);
    }

    .cmd-palette-backdrop {
        padding-top: 8vh;
    }

    .cmd-palette-dialog {
        max-width: 90vw;
    }
}

/* ==========================================================================
   OPTIONAL: LINEAR VISUAL GRID OVERLAY
   ========================================================================== */

.grid-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 1;
    background-image: 
        linear-gradient(to right, var(--grid-line) 1px, transparent 1px),
        linear-gradient(to bottom, var(--grid-line) 1px, transparent 1px);
    background-size: 100px 100px;
    opacity: 0.6;
}

/* Scroll target highlight pulse */
@keyframes pulseHighlight {
    0% { 
        border-color: var(--border-main); 
        background-color: var(--bg-card);
    }
    30% { 
        border-color: var(--accent); 
        background-color: var(--accent-muted);
    }
    100% { 
        border-color: var(--border-main); 
        background-color: var(--bg-card);
    }
}

.pulse-highlight {
    animation: pulseHighlight 1.5s var(--ease-out-expo) forwards;
}

/* Editorial italic styling */
.editorial-italic {
    font-family: 'Newsreader', Georgia, serif;
    font-style: italic;
    font-weight: 400;
    letter-spacing: -0.01em;
    color: var(--accent);
}

/* Overview layout tweaks with portrait image */
.overview-grid {
    display: grid;
    grid-template-columns: 1.8fr 1fr;
    gap: 3.5rem;
    align-items: flex-start;
    margin-bottom: 4rem;
}

.portrait-block {
    display: flex;
    justify-content: flex-end;
}

.portrait-wrapper {
    width: 100%;
    max-width: 220px;
    height: auto;
    aspect-ratio: 22 / 31;
    overflow: hidden;
    border-radius: 8px;
    border: 1px solid var(--border-main);
    background-color: var(--bg-card);
    transition: border-color var(--transition-smooth);
}

.portrait-link-overlay {
    display: block;
    width: 100%;
    height: 100%;
    position: relative;
    cursor: pointer;
}

.portrait-overlay-badge {
    position: absolute;
    bottom: 1.25rem;
    left: 50%;
    transform: translateX(-50%) translateY(8px);
    background: rgba(15, 15, 18, 0.65);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.08);
    padding: 0.4rem 0.8rem;
    border-radius: 20px;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-main);
    display: flex;
    align-items: center;
    gap: 0.35rem;
    opacity: 0;
    transition: opacity var(--transition-smooth), transform var(--transition-smooth), background-color var(--transition-fast), border-color var(--transition-fast);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.25);
    z-index: 10;
}

.portrait-overlay-badge:hover {
    background: rgba(224, 107, 78, 0.15);
    border-color: rgba(224, 107, 78, 0.3);
}

.portrait-wrapper:hover .portrait-overlay-badge {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

html[data-theme="light"] .portrait-overlay-badge {
    background: rgba(255, 255, 255, 0.75);
    border: 1px solid rgba(0, 0, 0, 0.06);
    color: var(--text-main);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
}

html[data-theme="light"] .portrait-overlay-badge:hover {
    background: rgba(208, 90, 61, 0.08);
    border-color: rgba(208, 90, 61, 0.2);
}

.portrait-wrapper:hover {
    border-color: var(--border-focus);
}

.portrait-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center 10%;
    transform: scale(1.22); /* Zoom in slightly by 22% */
    filter: grayscale(85%) contrast(1.1) brightness(0.95);
    opacity: 0.85;
    transition: transform var(--transition-smooth), filter var(--transition-smooth), opacity var(--transition-smooth);
}

.portrait-wrapper:hover .portrait-img {
    transform: scale(1.3); /* Smoothly zoom in a bit more on hover */
    filter: grayscale(0%) contrast(1) brightness(1);
    opacity: 1;
}

/* Experience logos styling */
.spec-org-row {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 0.25rem;
}

.comp-logo {
    width: 20px;
    height: 20px;
    color: var(--accent);
    flex-shrink: 0;
}

/* Leadership banners styling */
.banner-wrapper {
    margin: 1.5rem 0 2rem 0;
    width: 100%;
    overflow: hidden;
    border-radius: 6px;
    border: 1px solid var(--border-main);
    background-color: var(--bg-card);
}

.leadership-banner-img {
    width: 100%;
    height: 220px;
    object-fit: cover;
    object-position: center;
    display: block;
    opacity: 0.6;
    filter: grayscale(100%) contrast(1.15);
    transition: filter var(--transition-smooth), opacity var(--transition-smooth);
}

.leadership-banner-img:hover {
    opacity: 0.85;
    filter: grayscale(0%) contrast(1);
}

.coding-club-banner {
    object-position: center 32%;
}

/* Education row styling */
.edu-item-row {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.edu-logo {
    width: 28px;
    height: 28px;
    color: var(--accent);
    flex-shrink: 0;
}

/* Worked With Logos Wall styling */
.overview-brands-section {
    margin-top: 4rem;
    border-top: 1px solid var(--border-main);
    padding-top: 2.5rem;
    margin-bottom: 2rem;
}

.brands-strip {
    display: flex;
    flex-wrap: wrap;
    gap: 3.5rem;
    align-items: center;
    margin-top: 1.25rem;
}

.brand-logo-item {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--text-muted);
    transition: color var(--transition-fast);
}

.brand-logo-item:hover {
    color: var(--text-main);
}

.brand-logo-svg {
    width: 18px;
    height: 18px;
    color: var(--text-muted);
    transition: color var(--transition-fast);
}

.brand-logo-item:hover .brand-logo-svg {
    color: var(--accent);
}


/* Image Logo styles for brand partners and education */
.edu-logo-img {
    width: 28px;
    height: 28px;
    object-fit: contain;
    flex-shrink: 0;
    filter: none; /* Keep colored */
    transition: transform var(--transition-smooth);
}

.edu-item-row:hover .edu-logo-img {
    transform: scale(1.05); /* Subtle scale effect on hover */
}

.brand-logo-img {
    width: 18px;
    height: 18px;
    object-fit: contain;
    flex-shrink: 0;
    border-radius: 2px;
    filter: none; /* Keep colored */
    opacity: 0.85; /* Subtle opacity rest */
    transition: opacity var(--transition-fast), transform var(--transition-fast);
}

.brand-logo-item:hover .brand-logo-img {
    opacity: 1;
    transform: scale(1.08);
}

.comp-logo-img {
    width: 32px; /* Increased from 20px to make them bigger */
    height: 32px;
    object-fit: contain;
    flex-shrink: 0;
    border-radius: 4px;
    filter: none; /* Keep colored */
    transition: transform var(--transition-smooth);
}

.spec-item:hover .comp-logo-img {
    transform: scale(1.06); /* Subtle scale effect on hover */
}

/* Actions and nested project header styling */
.spec-actions {
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

.nested-proj-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
}

/* ==========================================================================
   MULTI-BREAKPOINT RESPONSIVENESS SYSTEM
   ========================================================================== */

/* 1b. Small Desktops & Landscape Tablets (841px — 960px) where sidebar squishes content */
@media (min-width: 841px) and (max-width: 960px) {
    .overview-grid {
        grid-template-columns: 1fr;
        gap: 2.5rem;
    }
    .portrait-block {
        justify-content: center;
        order: -1; /* Photo on top when viewport is narrow */
    }
    .portrait-wrapper {
        margin: 0 auto;
    }
    .grid-summary {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    .stack-grid {
        grid-template-columns: 1fr;
    }
    .span-all {
        grid-column: span 1;
    }
    .spec-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 0.75rem;
    }
}

/* 2. Portrait Tablets (741px — 840px) - Sidebar is hidden (spacious viewport) */
@media (min-width: 741px) and (max-width: 840px) {
    .overview-grid {
        grid-template-columns: 1.6fr 1fr;
        gap: 2.5rem;
        margin-bottom: 3.5rem;
    }
    .portrait-block {
        justify-content: flex-end;
        order: 0;
    }
    .portrait-wrapper {
        width: 100%;
        max-width: 195px;
        height: auto;
        aspect-ratio: 22 / 31;
    }
    .brands-strip {
        gap: 2.5rem;
    }
    .spec-grid {
        grid-template-columns: repeat(4, 1fr);
        gap: 0.75rem;
    }
    .grid-summary {
        grid-template-columns: 1fr 1fr;
        gap: 2.5rem;
    }
    .stack-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .span-all {
        grid-column: span 2;
    }
}

/* 3. Mobile / Small Tablets (max-width: 740px) - Sidebar is hidden (narrow viewport) */
@media (max-width: 740px) {
    /* Viewport spacing clear of mobile header and using fluid horizontal padding */
    .app-viewport {
        padding: 6rem clamp(1.25rem, 4vw, 2rem) 3rem;
    }

    /* Stacking grids */
    .overview-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    .portrait-block {
        justify-content: center;
        order: -1; /* Image on top */
    }
    .portrait-wrapper {
        width: 100%;
        max-width: 180px;
        height: auto;
        aspect-ratio: 22 / 31;
        margin: 0 auto;
    }
    .grid-summary {
        grid-template-columns: 1fr;
        gap: 2rem;
        padding-top: 2rem;
        margin-bottom: 3rem;
    }
    .stack-grid {
        grid-template-columns: 1fr;
        gap: 1.25rem;
    }
    .span-all {
        grid-column: span 1;
    }

    /* Metric Cards Grid */
    .spec-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 0.75rem;
    }
    .spec-metric-card {
        padding: 0.75rem;
    }
    .metric-val {
        font-size: 1.2rem;
    }
    .metric-lbl {
        font-size: 0.65rem;
    }

    /* Stacking Header Rows to prevent collisions */
    .spec-header-row {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.75rem;
    }
    .spec-actions {
        width: 100%;
        justify-content: flex-start;
    }
    .nested-proj-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }

    /* Worked With logo strip centering */
    .overview-brands-section {
        margin-top: 3rem;
        padding-top: 2rem;
    }
    .brands-strip {
        justify-content: center;
        gap: 1.5rem 2.25rem;
        margin-top: 1rem;
    }
    .brand-logo-item {
        font-size: 0.75rem;
    }

    /* Table mobile optimizations */
    .ach-table th, .ach-table td {
        padding: 0.75rem 0.5rem;
    }
    .ach-table {
        font-size: 0.8rem;
    }

    /* Hide keyboard helpers */
    .cmd-palette-footer {
        display: none;
    }
    .nav-shortcut {
        display: none;
    }
}

/* 4. Standard Mobile / Android view (max-width: 450px) */
@media (max-width: 450px) {
    .view-title {
        font-size: 1.85rem;
    }
    .hero-statement {
        font-size: 1.4rem;
        line-height: 1.35;
    }
    .spec-title {
        font-size: 1.15rem;
    }
    .metric-val {
        font-size: 1.15rem;
    }
    .metric-lbl {
        font-size: 0.65rem;
    }
    .btn-action {
        padding: 0.35rem 0.65rem;
        font-size: 0.7rem;
    }
}

/* 5. Narrow Android / Foldable Screen (max-width: 360px) */
@media (max-width: 360px) {
    .spec-grid {
        grid-template-columns: 1fr;
        gap: 0.6rem;
    }
    .brands-strip {
        gap: 1.25rem 1.75rem;
    }
}