/* ===================================================================
   VIKAS K S // PROFESSIONAL ENGINEERING PORTFOLIO STYLESHEET
   Clean, Modern, Executive Silicon-Valley Style Engineering Design
   =================================================================== */

:root {
    /* Color Palette - Deep Slate, Precision Blues, Emerald */
    --bg-base: #090d16;
    --bg-subtle: #0e1526;
    --bg-card: rgba(14, 21, 38, 0.75);
    --bg-card-hover: rgba(22, 33, 58, 0.85);
    --bg-card-solid: #0f172a;
    --bg-elevated: #1a253c;

    /* Borders */
    --border-subtle: rgba(255, 255, 255, 0.08);
    --border-medium: rgba(255, 255, 255, 0.16);
    --border-accent: rgba(56, 189, 248, 0.4);

    /* Accent & Brand Colors */
    --primary: #38bdf8;
    --primary-hover: #0284c7;
    --primary-glow: rgba(56, 189, 248, 0.25);
    
    --success: #10b981;
    --success-bg: rgba(16, 185, 129, 0.1);
    --success-border: rgba(16, 185, 129, 0.3);

    --warning: #f59e0b;
    --warning-bg: rgba(245, 158, 11, 0.1);

    --danger: #ef4444;

    /* Text Colors */
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --text-white: #ffffff;

    /* Typography */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    --font-heading: 'Plus Jakarta Sans', var(--font-sans);
    --font-mono: 'JetBrains Mono', monospace;

    /* Layout & Shadows */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.6);
    --shadow-glow: 0 0 24px var(--primary-glow);

    /* Transitions */
    --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
    --trans-fast: 0.2s var(--ease-out);
    --trans-mid: 0.35s var(--ease-out);
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
    background-color: var(--bg-base);
    color: var(--text-primary);
}

body.pro-body {
    font-family: var(--font-sans);
    line-height: 1.6;
    background-color: var(--bg-base);
    color: var(--text-primary);
    overflow-x: hidden;
    position: relative;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Subtle Engineering Grid & Ambient Glows */
.ambient-grid {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background-image: 
        linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
    background-size: 36px 36px;
    pointer-events: none;
    z-index: 0;
}

.ambient-glow {
    position: fixed;
    border-radius: 50%;
    filter: blur(120px);
    pointer-events: none;
    z-index: 0;
    opacity: 0.4;
}
.ambient-glow.glow-1 {
    top: -100px;
    right: 5%;
    width: 450px;
    height: 450px;
    background: radial-gradient(circle, rgba(56, 189, 248, 0.18), transparent 70%);
}
.ambient-glow.glow-2 {
    bottom: 10%;
    left: -100px;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(16, 185, 129, 0.12), transparent 70%);
}

/* Container */
.container {
    max-width: 1240px;
    margin: 0 auto;
    padding: 0 1.5rem;
    position: relative;
    z-index: 1;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: var(--bg-base);
}
::-webkit-scrollbar-thumb {
    background: var(--border-medium);
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--primary);
}


/* ===================================================================
   NAVIGATION BAR
   =================================================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 100;
    background: rgba(9, 13, 22, 0.88);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border-subtle);
    transition: var(--trans-fast);
}

.nav-container {
    max-width: 1240px;
    margin: 0 auto;
    padding: 0.85rem 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

/* Brand */
.nav-brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    text-decoration: none;
    color: var(--text-white);
}

.brand-monogram {
    width: 38px;
    height: 38px;
    background: linear-gradient(135deg, #0284c7, #38bdf8);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 1.1rem;
    color: #fff;
    box-shadow: 0 4px 12px rgba(2, 132, 199, 0.3);
}

.brand-info {
    display: flex;
    flex-direction: column;
}

.brand-name {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.05rem;
    letter-spacing: -0.2px;
}

.brand-role {
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* Menu Links */
.nav-menu {
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.nav-link {
    font-family: var(--font-sans);
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
    text-decoration: none;
    padding: 0.45rem 0.85rem;
    border-radius: var(--radius-sm);
    transition: var(--trans-fast);
}

.nav-link:hover, .nav-link.active {
    color: var(--text-white);
    background: rgba(255, 255, 255, 0.05);
}

.nav-link.active {
    color: var(--primary);
    font-weight: 600;
}

/* Actions */
.nav-actions {
    display: flex;
    align-items: center;
    gap: 0.65rem;
}

.mobile-toggle {
    display: none;
    background: transparent;
    border: 1px solid var(--border-subtle);
    color: var(--text-secondary);
    padding: 0.45rem;
    border-radius: var(--radius-sm);
    cursor: pointer;
}


/* ===================================================================
   BUTTONS & UI CONTROLS
   =================================================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    font-family: var(--font-sans);
    font-size: 0.92rem;
    font-weight: 600;
    text-decoration: none;
    padding: 0.65rem 1.25rem;
    border-radius: var(--radius-sm);
    border: 1px solid transparent;
    cursor: pointer;
    transition: var(--trans-fast);
}

.btn svg {
    width: 17px;
    height: 17px;
    flex-shrink: 0;
}

.btn-sm {
    padding: 0.45rem 0.85rem;
    font-size: 0.85rem;
}

.btn-lg {
    padding: 0.85rem 1.6rem;
    font-size: 1rem;
    border-radius: var(--radius-md);
}

.btn-block {
    width: 100%;
}

.btn-primary {
    background: var(--primary);
    color: #041226;
    box-shadow: 0 4px 14px var(--primary-glow);
}
.btn-primary:hover {
    background: #60a5fa;
    color: #041226;
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(56, 189, 248, 0.4);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.07);
    color: var(--text-primary);
    border-color: var(--border-medium);
}
.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.12);
    color: #fff;
    border-color: rgba(255, 255, 255, 0.25);
    transform: translateY(-1px);
}

.btn-outline {
    background: transparent;
    color: var(--text-secondary);
    border-color: var(--border-subtle);
}
.btn-outline:hover {
    color: #fff;
    border-color: var(--primary);
    background: rgba(56, 189, 248, 0.05);
}

.btn-text-only {
    background: transparent;
    border: none;
    color: var(--text-muted);
    font-size: 0.75rem;
    cursor: pointer;
    text-decoration: underline;
}
.btn-text-only:hover {
    color: var(--primary);
}


/* ===================================================================
   MAIN WRAPPER & SECTIONS
   =================================================================== */
.main-wrapper {
    position: relative;
    z-index: 1;
    padding-top: 80px;
}

.section {
    padding: 6rem 0;
    position: relative;
}

.section.bg-subtle {
    background-color: rgba(14, 21, 38, 0.45);
    border-top: 1px solid var(--border-subtle);
    border-bottom: 1px solid var(--border-subtle);
}

.section-title-wrap {
    text-align: center;
    max-width: 720px;
    margin: 0 auto 3.5rem auto;
}

.section-tag {
    font-family: var(--font-mono);
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--primary);
    letter-spacing: 1.5px;
    display: inline-block;
    margin-bottom: 0.5rem;
}

.section-title {
    font-family: var(--font-heading);
    font-size: 2.25rem;
    font-weight: 800;
    letter-spacing: -0.5px;
    color: var(--text-white);
    margin-bottom: 0.75rem;
}

.section-desc {
    color: var(--text-secondary);
    font-size: 1.05rem;
    line-height: 1.6;
}


/* ===================================================================
   HERO SECTION
   =================================================================== */
.hero-section {
    padding: 4.5rem 0 5.5rem 0;
}

.hero-container {
    display: grid;
    grid-template-columns: 1.25fr 0.85fr;
    gap: 4rem;
    align-items: center;
}

/* Status Badge */
.status-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--success-bg);
    border: 1px solid var(--success-border);
    padding: 0.35rem 0.85rem;
    border-radius: 20px;
    font-size: 0.82rem;
    font-weight: 500;
    color: var(--success);
    margin-bottom: 1.5rem;
}

.status-pulse {
    width: 8px;
    height: 8px;
    background: var(--success);
    border-radius: 50%;
    box-shadow: 0 0 8px var(--success);
    animation: proPulse 2s infinite ease-in-out;
}

@keyframes proPulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.4; transform: scale(0.85); }
}

.hero-title {
    font-family: var(--font-heading);
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -1.2px;
    color: var(--text-white);
    margin-bottom: 1.25rem;
}

.hero-lead {
    font-size: 1.12rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 1.75rem;
}

.hero-lead strong {
    color: var(--text-primary);
    font-weight: 600;
}

/* Objective Card */
.hero-objective-card {
    display: flex;
    gap: 1rem;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-subtle);
    padding: 1.15rem 1.4rem;
    border-radius: var(--radius-md);
    margin-bottom: 2.25rem;
}

.quote-bar {
    width: 3px;
    background: var(--primary);
    border-radius: 2px;
    flex-shrink: 0;
}

.objective-label {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    font-weight: 600;
    color: var(--primary);
    letter-spacing: 1px;
    display: block;
    margin-bottom: 0.35rem;
}

.objective-quote {
    font-size: 0.95rem;
    color: #cbd5e1;
    line-height: 1.6;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.85rem;
    margin-bottom: 2.5rem;
}

/* Highlights Strip */
.hero-metrics {
    display: flex;
    align-items: center;
    background: rgba(15, 23, 42, 0.6);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    padding: 1.25rem 1.75rem;
}

.metric-item {
    flex: 1;
}

.metric-number {
    font-family: var(--font-heading);
    font-size: 1.65rem;
    font-weight: 800;
    color: var(--text-white);
    line-height: 1.1;
    margin-bottom: 0.2rem;
}

.metric-title {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-primary);
}

.metric-caption {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.metric-divider {
    width: 1px;
    height: 40px;
    background: var(--border-subtle);
    margin: 0 1.5rem;
}

/* Profile Card */
.profile-card {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
    backdrop-filter: blur(16px);
    transition: var(--trans-fast);
}

.profile-card:hover {
    border-color: var(--border-accent);
}

.card-header-bar {
    background: rgba(255, 255, 255, 0.02);
    border-bottom: 1px solid var(--border-subtle);
    padding: 0.75rem 1.25rem;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.window-dots {
    display: flex;
    gap: 6px;
}
.window-dots span {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: #334155;
}
.window-dots span:nth-child(1) { background: #ef4444; }
.window-dots span:nth-child(2) { background: #f59e0b; }
.window-dots span:nth-child(3) { background: #10b981; }

.window-title {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    color: var(--text-muted);
    letter-spacing: 1px;
}

.profile-card-body {
    padding: 1.75rem;
}

.profile-avatar-wrap {
    display: flex;
    align-items: center;
    gap: 1.25rem;
    margin-bottom: 1.75rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--border-subtle);
}

.avatar-circle {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background: linear-gradient(135deg, #1e293b, #0f172a);
    border: 2px solid var(--primary);
    box-shadow: 0 0 20px var(--primary-glow);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.avatar-text {
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 1.35rem;
    color: #fff;
    letter-spacing: 1px;
}

.profile-name {
    font-family: var(--font-heading);
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--text-white);
    margin-bottom: 0.15rem;
}

.profile-subtitle {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 0.35rem;
}

.badge-tag {
    font-size: 0.75rem;
    color: var(--primary);
    background: rgba(56, 189, 248, 0.1);
    padding: 2px 8px;
    border-radius: 4px;
    display: inline-block;
}

.profile-details-list {
    display: flex;
    flex-direction: column;
    gap: 0.9rem;
    margin-bottom: 1.75rem;
}

.detail-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.85rem;
}

.detail-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-muted);
}
.detail-label svg {
    width: 15px;
    height: 15px;
    color: var(--primary);
}

.detail-val-group {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.detail-link {
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 500;
    transition: var(--trans-fast);
}
.detail-link:hover {
    color: var(--primary);
}

.copy-icon-btn {
    background: transparent;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    display: flex;
    align-items: center;
}
.copy-icon-btn:hover {
    color: var(--primary);
}
.copy-icon-btn svg {
    width: 14px;
    height: 14px;
}

.detail-val {
    color: var(--text-primary);
    font-weight: 500;
}
.detail-val.highlight-green {
    color: var(--success);
}

.profile-skills-preview {
    display: flex;
    flex-wrap: wrap;
    gap: 0.45rem;
    margin-bottom: 1.5rem;
}

.skill-pill {
    font-size: 0.75rem;
    font-family: var(--font-mono);
    color: var(--text-secondary);
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border-subtle);
    padding: 0.25rem 0.6rem;
    border-radius: 4px;
}

.profile-card-footer {
    padding-top: 0.5rem;
}


/* ===================================================================
   PROFESSIONAL EXPERIENCE
   =================================================================== */
.experience-timeline {
    max-width: 980px;
    margin: 0 auto;
}

.exp-card {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    overflow: hidden;
    backdrop-filter: blur(12px);
    transition: var(--trans-fast);
}

.exp-card:hover {
    border-color: var(--border-medium);
    box-shadow: var(--shadow-lg);
}

.exp-card-header {
    background: rgba(255, 255, 255, 0.02);
    border-bottom: 1px solid var(--border-subtle);
    padding: 1.75rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.company-badge-wrap {
    display: flex;
    align-items: center;
    gap: 1.25rem;
}

.company-initial-badge {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    background: #e11d48;
    color: #fff;
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 12px rgba(225, 29, 72, 0.3);
}

.exp-role {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-white);
    margin-bottom: 0.15rem;
}

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

.exp-meta-group {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 0.25rem;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.exp-duration {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    color: var(--text-white);
    font-weight: 600;
}
.exp-duration svg, .exp-location svg {
    width: 14px;
    height: 14px;
    color: var(--primary);
}

.exp-location {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    color: var(--text-muted);
}

.exp-card-body {
    padding: 2rem;
}

.exp-summary {
    font-size: 1.05rem;
    color: #cbd5e1;
    line-height: 1.6;
    margin-bottom: 1.75rem;
}

.exp-responsibilities {
    margin-bottom: 2rem;
}

.exp-subhead {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--text-white);
    margin-bottom: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

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

.pro-bullet-list li {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

.pro-bullet-list li svg {
    width: 18px;
    height: 18px;
    color: var(--primary);
    flex-shrink: 0;
    margin-top: 3px;
}

.pro-bullet-list li strong {
    color: var(--text-primary);
}

.exp-competencies {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border-subtle);
}

.comp-tag {
    font-size: 0.78rem;
    font-family: var(--font-mono);
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-subtle);
    padding: 0.35rem 0.75rem;
    border-radius: var(--radius-sm);
}


/* ===================================================================
   ACADEMIC & HARDWARE PROJECTS
   =================================================================== */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
}

.project-pro-card {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    padding: 2.25rem;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    backdrop-filter: blur(12px);
    transition: var(--trans-fast);
}

.project-pro-card:hover {
    border-color: var(--border-accent);
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.project-card-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.25rem;
}

.project-category {
    display: flex;
    align-items: center;
    gap: 0.45rem;
    font-family: var(--font-mono);
    font-size: 0.78rem;
    color: var(--primary);
}
.project-category svg {
    width: 15px;
    height: 15px;
}

.status-indicator-tag {
    font-size: 0.72rem;
    font-weight: 600;
    padding: 2px 8px;
    border-radius: 4px;
}
.status-indicator-tag.success {
    background: var(--success-bg);
    color: var(--success);
    border: 1px solid var(--success-border);
}

.project-name {
    font-family: var(--font-heading);
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--text-white);
    line-height: 1.35;
    margin-bottom: 1rem;
}

.project-description {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

/* Architecture Signal Flow Box */
.project-arch-box {
    background: rgba(0, 0, 0, 0.35);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-sm);
    padding: 0.85rem 1rem;
    margin-bottom: 1.5rem;
}

.arch-label {
    font-family: var(--font-mono);
    font-size: 0.68rem;
    font-weight: 700;
    color: var(--primary);
    letter-spacing: 1px;
    display: block;
    margin-bottom: 0.4rem;
}

.arch-flow {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.4rem;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-primary);
}

.arch-node {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-subtle);
    padding: 2px 7px;
    border-radius: 4px;
}

.arch-arrow {
    color: var(--text-muted);
}

.project-highlights {
    margin-bottom: 1.75rem;
}

.highlights-label {
    font-size: 0.82rem;
    font-weight: 700;
    color: var(--text-white);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 0.75rem;
}

.project-tech-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 0.45rem;
    margin-bottom: 2rem;
}

.tech-chip {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border-subtle);
    padding: 0.3rem 0.65rem;
    border-radius: var(--radius-sm);
}

.project-footer-actions {
    display: flex;
    gap: 0.75rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border-subtle);
}


/* ===================================================================
   HARDWARE INSTRUMENTATION TEST BENCH
   =================================================================== */
.demo-tab-selector {
    display: flex;
    justify-content: center;
    gap: 0.75rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.demo-tab {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border-subtle);
    color: var(--text-secondary);
    font-family: var(--font-sans);
    font-size: 0.92rem;
    font-weight: 600;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-md);
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: var(--trans-fast);
}

.demo-tab svg {
    width: 17px;
    height: 17px;
    color: var(--primary);
}

.demo-tab:hover {
    color: var(--text-white);
    border-color: var(--border-medium);
}

.demo-tab.active {
    background: rgba(56, 189, 248, 0.1);
    border-color: var(--primary);
    color: var(--text-white);
    box-shadow: 0 4px 16px rgba(56, 189, 248, 0.15);
}

.demo-workspace {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
    backdrop-filter: blur(16px);
}

.demo-panel {
    display: none;
    padding: 2.25rem;
}

.demo-panel.active {
    display: block;
    animation: fadeInBench 0.3s var(--ease-out);
}

@keyframes fadeInBench {
    from { opacity: 0; transform: translateY(6px); }
    to { opacity: 1; transform: translateY(0); }
}

.bench-grid {
    display: grid;
    grid-template-columns: 460px 1fr;
    gap: 2rem;
}

.bench-control-card, .bench-visual-card {
    background: rgba(8, 14, 28, 0.75);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    padding: 1.75rem;
}

.card-title-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-bottom: 1rem;
    margin-bottom: 1.5rem;
    border-bottom: 1px solid var(--border-subtle);
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-white);
}

.header-left {
    display: flex;
    align-items: center;
    gap: 0.4rem;
}
.header-left svg {
    width: 16px;
    height: 16px;
    color: var(--primary);
}

.badge-subtle {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--text-muted);
    background: rgba(255, 255, 255, 0.05);
    padding: 2px 7px;
    border-radius: 4px;
}

.system-status-pill {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    color: var(--text-white);
    background: rgba(255, 255, 255, 0.08);
    padding: 2px 8px;
    border-radius: 4px;
}

/* Slider & Controls */
.control-field {
    margin-bottom: 1.5rem;
}

.control-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.65rem;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-white);
}

.field-badge {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--primary);
    background: rgba(56, 189, 248, 0.1);
    padding: 2px 8px;
    border-radius: 4px;
}

.pro-slider {
    -webkit-appearance: none;
    appearance: none;
    width: 100%;
    height: 7px;
    border-radius: 4px;
    background: #1e293b;
    outline: none;
    margin-bottom: 0.4rem;
}

.pro-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--primary);
    border: 2px solid #fff;
    cursor: pointer;
    box-shadow: 0 0 10px rgba(56, 189, 248, 0.5);
    transition: var(--trans-fast);
}

.pro-slider::-webkit-slider-thumb:hover {
    transform: scale(1.15);
}

.slider-scale {
    display: flex;
    justify-content: space-between;
    font-family: var(--font-mono);
    font-size: 0.68rem;
    color: var(--text-muted);
}

.preset-pills {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex-wrap: wrap;
    margin-bottom: 1.75rem;
}

.preset-label {
    font-size: 0.75rem;
    color: var(--text-muted);
    width: 100%;
}

.preset-chip {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border-subtle);
    color: var(--text-secondary);
    font-family: var(--font-mono);
    font-size: 0.72rem;
    padding: 0.35rem 0.65rem;
    border-radius: 4px;
    cursor: pointer;
    transition: var(--trans-fast);
}
.preset-chip:hover {
    color: #fff;
    border-color: var(--primary);
    background: rgba(56, 189, 248, 0.1);
}

/* Telemetry Table */
.telemetry-table {
    background: #040813;
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-sm);
    padding: 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.65rem;
}

.telemetry-row {
    display: flex;
    justify-content: space-between;
    font-family: var(--font-mono);
    font-size: 0.78rem;
}

.t-label {
    color: var(--text-muted);
}
.t-value {
    color: var(--text-primary);
    font-weight: 500;
}
.t-value.highlight {
    color: var(--primary);
}
.t-value.highlight-green {
    color: var(--success);
}
.t-value.highlight-red {
    color: var(--danger);
}

/* Instrumentation Logic Display */
.instrument-display {
    background: #040813;
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-sm);
    padding: 1.25rem;
    margin-bottom: 1.25rem;
}

.instrument-indicators {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1.25rem;
    gap: 0.5rem;
}

.meter-box {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-sm);
    padding: 0.75rem 1rem;
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.meter-title {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    color: var(--text-muted);
    letter-spacing: 0.5px;
    margin-bottom: 0.25rem;
}

.meter-readout {
    font-family: var(--font-heading);
    font-size: 1.2rem;
    font-weight: 800;
    color: var(--text-white);
}
.meter-readout.highlight {
    color: var(--primary);
}
.meter-readout.highlight-green {
    color: var(--success);
}
.meter-readout.highlight-red {
    color: var(--danger);
}

.meter-unit {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    color: var(--text-secondary);
    margin-top: 0.15rem;
}

.meter-divider-arrow {
    font-family: var(--font-mono);
    font-size: 1.1rem;
    color: var(--text-muted);
}

/* Hardware Load Circuit Preview */
.load-circuit-preview {
    background: rgba(15, 23, 42, 0.6);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-sm);
    padding: 0.85rem 1rem;
}

.circuit-status-line {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-family: var(--font-mono);
    font-size: 0.72rem;
}

.status-pin {
    background: rgba(56, 189, 248, 0.12);
    border: 1px solid rgba(56, 189, 248, 0.3);
    color: var(--primary);
    padding: 3px 8px;
    border-radius: 4px;
}

.status-wire {
    flex: 1;
    height: 2px;
    background: #334155;
    margin: 0 0.5rem;
    position: relative;
    transition: background 0.3s ease;
}
.status-wire.active {
    background: var(--success);
    box-shadow: 0 0 6px var(--success);
}

.status-relay {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-medium);
    color: var(--text-secondary);
    padding: 3px 8px;
    border-radius: 4px;
    transition: all 0.3s ease;
}
.status-relay.active {
    background: var(--success-bg);
    border-color: var(--success-border);
    color: var(--success);
}

.status-load {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-medium);
    color: var(--text-secondary);
    padding: 3px 8px;
    border-radius: 4px;
    transition: all 0.3s ease;
}
.status-load.active {
    background: rgba(250, 204, 21, 0.15);
    border-color: rgba(250, 204, 21, 0.4);
    color: #facc15;
    box-shadow: 0 0 10px rgba(250, 204, 21, 0.3);
}

/* Serial Feed Console */
.serial-feed {
    background: #020612;
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-sm);
    overflow: hidden;
}

.serial-feed-header {
    background: rgba(255, 255, 255, 0.03);
    border-bottom: 1px solid var(--border-subtle);
    padding: 0.45rem 0.85rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-family: var(--font-mono);
    font-size: 0.72rem;
    color: var(--text-muted);
}

.serial-feed-header svg {
    width: 13px;
    height: 13px;
    color: var(--primary);
}

.serial-feed-body {
    height: 95px;
    overflow-y: auto;
    padding: 0.65rem 0.85rem;
    font-family: var(--font-mono);
    font-size: 0.72rem;
    line-height: 1.5;
    color: #94a3b8;
}

.log-entry {
    margin-bottom: 2px;
}
.log-entry.active-log {
    color: var(--primary);
}


/* ===================================================================
   SKILLS & INFOSYS CERTIFICATION
   =================================================================== */
.cert-card {
    background: linear-gradient(135deg, rgba(245, 158, 11, 0.06) 0%, rgba(14, 21, 38, 0.85) 100%);
    border: 1px solid rgba(245, 158, 11, 0.35);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    padding: 2.25rem;
    margin-bottom: 3.5rem;
    display: flex;
    align-items: center;
    gap: 2.25rem;
}

.cert-seal-icon {
    width: 72px;
    height: 72px;
    border-radius: 50%;
    background: rgba(245, 158, 11, 0.12);
    border: 2px solid var(--warning);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}
.cert-seal-icon svg {
    width: 36px;
    height: 36px;
    color: var(--warning);
}

.cert-center {
    flex: 1;
}

.cert-badge {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    font-weight: 600;
    color: var(--warning);
    letter-spacing: 1.5px;
    margin-bottom: 0.35rem;
}

.cert-title {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--text-white);
    margin-bottom: 0.2rem;
}

.cert-subtitle {
    font-size: 1rem;
    font-weight: 600;
    color: var(--primary);
    margin-bottom: 0.75rem;
}

.cert-text {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 1.25rem;
}

.cert-competency-row {
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem;
}

.cert-tag {
    font-size: 0.78rem;
    font-family: var(--font-mono);
    color: var(--text-white);
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-subtle);
    padding: 0.25rem 0.65rem;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    gap: 0.35rem;
}
.cert-tag svg {
    width: 13px;
    height: 13px;
    color: var(--warning);
}

.issuer-box {
    display: flex;
    flex-direction: column;
    align-items: center;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-subtle);
    padding: 1rem 1.5rem;
    border-radius: var(--radius-md);
    flex-shrink: 0;
}

.issuer-org {
    font-family: var(--font-heading);
    font-size: 1.15rem;
    font-weight: 800;
    color: var(--text-white);
    letter-spacing: 1px;
}

.issuer-status {
    font-family: var(--font-mono);
    font-size: 0.68rem;
    color: var(--success);
}

/* Skills 3-Card Grid */
.skills-category-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.skill-group-card {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    padding: 2rem;
    backdrop-filter: blur(12px);
    transition: var(--trans-fast);
}

.skill-group-card:hover {
    border-color: var(--border-medium);
    box-shadow: var(--shadow-md);
}

.group-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.75rem;
    padding-bottom: 1.25rem;
    border-bottom: 1px solid var(--border-subtle);
}

.group-icon {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-md);
    background: rgba(56, 189, 248, 0.1);
    border: 1px solid rgba(56, 189, 248, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
}
.group-icon svg {
    width: 22px;
    height: 22px;
    color: var(--primary);
}

.group-title {
    font-family: var(--font-heading);
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--text-white);
}

.group-desc {
    font-size: 0.8rem;
    color: var(--text-muted);
}

.skill-badge-list {
    display: flex;
    flex-direction: column;
    gap: 0.85rem;
}

.skill-badge-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-subtle);
    padding: 0.65rem 0.85rem;
    border-radius: var(--radius-sm);
    transition: var(--trans-fast);
}
.skill-badge-item:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: var(--border-medium);
}

.badge-name {
    font-size: 0.88rem;
    font-weight: 500;
    color: var(--text-primary);
}

.badge-level {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    color: var(--primary);
    background: rgba(56, 189, 248, 0.1);
    padding: 2px 7px;
    border-radius: 4px;
}

.coursework-chips-container {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.course-chip {
    font-size: 0.88rem;
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-subtle);
    padding: 0.65rem 0.85rem;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    gap: 0.65rem;
}
.course-chip svg {
    width: 16px;
    height: 16px;
    color: var(--success);
}


/* ===================================================================
   EDUCATION
   =================================================================== */
.education-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
}

.edu-pro-card {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    padding: 2.25rem;
    backdrop-filter: blur(12px);
    transition: var(--trans-fast);
}

.edu-pro-card:hover {
    border-color: var(--border-medium);
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.edu-card-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.edu-icon-badge {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-md);
    background: rgba(56, 189, 248, 0.1);
    border: 1px solid rgba(56, 189, 248, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
}
.edu-icon-badge svg {
    width: 22px;
    height: 22px;
    color: var(--primary);
}

.edu-type-tag {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    font-weight: 600;
    color: var(--primary);
    background: rgba(56, 189, 248, 0.1);
    padding: 3px 8px;
    border-radius: 4px;
}

.edu-score-badge {
    font-family: var(--font-heading);
    font-size: 0.82rem;
    font-weight: 700;
    color: var(--success);
    background: var(--success-bg);
    border: 1px solid var(--success-border);
    padding: 4px 10px;
    border-radius: 4px;
}

.edu-school-name {
    font-family: var(--font-heading);
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--text-white);
    margin-bottom: 0.25rem;
}

.edu-degree-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--primary);
    margin-bottom: 1rem;
}

.edu-summary-text {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 1.75rem;
}

.edu-card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 1.25rem;
    border-top: 1px solid var(--border-subtle);
    font-size: 0.85rem;
    color: var(--text-muted);
}

.footer-info {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    color: var(--text-secondary);
}
.footer-info svg {
    width: 14px;
    height: 14px;
    color: var(--primary);
}


/* ===================================================================
   CONTACT SECTION
   =================================================================== */
.contact-layout {
    display: grid;
    grid-template-columns: 460px 1fr;
    gap: 3rem;
}

.contact-info-column {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.contact-card {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    padding: 1.5rem;
    display: flex;
    align-items: center;
    gap: 1.25rem;
    backdrop-filter: blur(12px);
    transition: var(--trans-fast);
}

.contact-card:hover {
    border-color: var(--border-medium);
}

.contact-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    background: rgba(56, 189, 248, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}
.contact-icon svg {
    width: 22px;
    height: 22px;
    color: var(--primary);
}

.contact-meta {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.contact-label {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--text-muted);
    letter-spacing: 0.5px;
}

.contact-value {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-white);
    text-decoration: none;
    transition: var(--trans-fast);
}
.contact-value:hover {
    color: var(--primary);
}

.contact-subtext {
    font-size: 0.82rem;
    color: var(--text-muted);
    margin-top: 0.25rem;
}

.availability-card {
    background: rgba(16, 185, 129, 0.05);
    border: 1px solid rgba(16, 185, 129, 0.25);
    border-radius: var(--radius-md);
    padding: 1.25rem 1.5rem;
    display: flex;
    align-items: flex-start;
    gap: 1rem;
}

.avail-indicator {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--success);
    box-shadow: 0 0 10px var(--success);
    margin-top: 5px;
    flex-shrink: 0;
}

.avail-title {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--text-white);
    margin-bottom: 0.25rem;
}

.avail-desc {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

/* Contact Form */
.form-container-card {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    padding: 2.25rem;
    backdrop-filter: blur(12px);
}

.form-title {
    font-family: var(--font-heading);
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--text-white);
    margin-bottom: 0.25rem;
}

.form-subtitle {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 1.75rem;
}

.pro-form {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.25rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.45rem;
}

.form-group label {
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--text-secondary);
}

.form-input {
    background: #040813;
    border: 1px solid var(--border-subtle);
    color: #fff;
    font-family: var(--font-sans);
    font-size: 0.92rem;
    padding: 0.75rem 1rem;
    border-radius: var(--radius-sm);
    outline: none;
    transition: var(--trans-fast);
}

.form-input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(56, 189, 248, 0.15);
    background: #090f1f;
}

.form-input::placeholder {
    color: #475569;
}

.form-feedback {
    display: none;
    padding: 0.85rem;
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
}
.form-feedback.success {
    display: block;
    background: var(--success-bg);
    border: 1px solid var(--success-border);
    color: var(--success);
}


/* ===================================================================
   FIRMWARE CODE MODAL
   =================================================================== */
.modal-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(3, 7, 18, 0.85);
    backdrop-filter: blur(12px);
    z-index: 200;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 1.5rem;
}

.modal-backdrop.active {
    display: flex;
}

.modal-dialog {
    background: #0a1122;
    border: 1px solid var(--border-medium);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    width: 100%;
    max-width: 780px;
    max-height: 85vh;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.modal-header {
    background: rgba(255, 255, 255, 0.02);
    border-bottom: 1px solid var(--border-subtle);
    padding: 1rem 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header-info {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--primary);
}
.modal-header-info svg {
    width: 16px;
    height: 16px;
}

.modal-close {
    background: transparent;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    display: flex;
    align-items: center;
}
.modal-close:hover {
    color: #fff;
}

.modal-body {
    padding: 1.5rem;
    overflow-y: auto;
    background: #040813;
}

.modal-body pre {
    font-family: var(--font-mono);
    font-size: 0.82rem;
    line-height: 1.6;
    color: #e2e8f0;
}

.modal-footer {
    background: rgba(255, 255, 255, 0.02);
    border-top: 1px solid var(--border-subtle);
    padding: 1rem 1.5rem;
    display: flex;
    justify-content: flex-end;
    gap: 0.75rem;
}


/* ===================================================================
   TOAST NOTIFICATIONS
   =================================================================== */
.toast-wrapper {
    position: fixed;
    bottom: 25px;
    right: 25px;
    z-index: 300;
    display: flex;
    flex-direction: column;
    gap: 0.65rem;
}

.pro-toast {
    background: #0f172a;
    border: 1px solid var(--primary);
    box-shadow: var(--shadow-md);
    padding: 0.75rem 1.25rem;
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    color: #fff;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    animation: toastSlide 0.25s var(--ease-out);
}

@keyframes toastSlide {
    from { transform: translateX(80px); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}


/* ===================================================================
   FOOTER
   =================================================================== */
.pro-footer {
    background: #050811;
    border-top: 1px solid var(--border-subtle);
    padding: 3.5rem 0 2rem 0;
}

.footer-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1.5rem;
    padding-bottom: 2.5rem;
    border-bottom: 1px solid var(--border-subtle);
}

.footer-brand {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--text-white);
}

.footer-tagline {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-top: 0.25rem;
}

.footer-nav {
    display: flex;
    gap: 1.25rem;
}

.footer-nav a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.88rem;
    transition: var(--trans-fast);
}
.footer-nav a:hover {
    color: var(--primary);
}

.back-top-btn {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.82rem;
    color: var(--text-muted);
    text-decoration: none;
    border: 1px solid var(--border-subtle);
    padding: 0.4rem 0.85rem;
    border-radius: var(--radius-sm);
    transition: var(--trans-fast);
}
.back-top-btn:hover {
    color: var(--primary);
    border-color: var(--primary);
}

.footer-bottom {
    padding-top: 1.75rem;
    text-align: center;
    font-size: 0.82rem;
    color: var(--text-muted);
}


/* ===================================================================
   PRINT STYLESHEET (CLEAN CORPORATE RESUME EXPORT FORMAT)
   =================================================================== */
@media print {
    body {
        background: #fff !important;
        color: #000 !important;
        font-family: Arial, sans-serif !important;
    }
    .ambient-grid, .ambient-glow, .navbar, .nav-actions, .hero-actions,
    #bench, .project-footer-actions, .modal-backdrop, .toast-wrapper,
    .contact-form-column, .pro-footer, .copy-icon-btn, .copy-btn {
        display: none !important;
    }
    .main-wrapper {
        padding-top: 0 !important;
    }
    .hero-container {
        grid-template-columns: 1fr !important;
        gap: 1rem !important;
    }
    .profile-card {
        border: none !important;
        box-shadow: none !important;
        padding: 0 !important;
    }
    .hero-title {
        color: #000 !important;
        font-size: 2.2rem !important;
    }
    .section {
        padding: 1.5rem 0 !important;
        border: none !important;
    }
    .exp-card, .project-pro-card, .cert-card, .skill-group-card, .edu-pro-card {
        background: #fff !important;
        color: #000 !important;
        border: 1px solid #ccc !important;
        box-shadow: none !important;
        break-inside: avoid;
    }
    .exp-role, .project-name, .cert-title, .edu-school-name {
        color: #000 !important;
    }
}


/* ===================================================================
   RESPONSIVE DESIGN (TABLET & MOBILE)
   =================================================================== */
@media (max-width: 1024px) {
    .hero-container {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    .hero-card-col {
        max-width: 500px;
        margin: 0 auto;
        width: 100%;
    }
    .bench-grid {
        grid-template-columns: 1fr;
    }
    .skills-category-grid {
        grid-template-columns: 1fr;
    }
    .cert-card {
        flex-direction: column;
        text-align: center;
        gap: 1.5rem;
    }
    .cert-competency-row {
        justify-content: center;
    }
    .contact-layout {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .mobile-toggle {
        display: block;
    }
    .nav-menu {
        position: fixed;
        top: 70px;
        left: 0;
        width: 100%;
        background: #090d16;
        border-bottom: 1px solid var(--border-medium);
        flex-direction: column;
        padding: 1.5rem;
        gap: 0.75rem;
        transform: translateY(-150%);
        transition: transform 0.35s ease;
    }
    .nav-menu.mobile-open {
        transform: translateY(0);
    }
    .hero-title {
        font-size: 2.5rem;
    }
    .hero-metrics {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }
    .metric-divider {
        display: none;
    }
    .projects-grid, .education-grid {
        grid-template-columns: 1fr;
    }
    .form-row {
        grid-template-columns: 1fr;
    }
    .footer-container {
        flex-direction: column;
        text-align: center;
    }
}