/* 
   ==========================================================================
   Akhil Binu - Personal Cybersecurity Portfolio Stylesheet (Vanilla CSS)
   ==========================================================================
*/

@import url('https://fonts.googleapis.com/css2?family=Fira+Code:wght@400;500;700&family=Outfit:wght@300;400;500;600;700;800&family=Space+Grotesk:wght@400;500;600;700&display=swap');

/* CSS Variables & Design System Tokens */
:root {
    /* Color Palette */
    --bg-primary: #040814;
    --bg-secondary: #0a0f24;
    --bg-terminal: #02050d;
    --bg-card: rgba(10, 15, 36, 0.7);
    --bg-nav: rgba(4, 8, 20, 0.85);
    
    --color-cyan: #00f2fe;
    --color-green: #39ff14;
    --color-pink: #ff0055;
    --color-blue: #4facfe;
    
    --color-text: #e2e8f0;
    --color-text-muted: #94a3b8;
    --color-text-dark: #64748b;
    
    --border-color: rgba(0, 242, 254, 0.15);
    --border-hover: rgba(0, 242, 254, 0.4);
    
    /* Glow Effects */
    --glow-cyan: 0 0 20px rgba(0, 242, 254, 0.55);
    --glow-green: 0 0 15px rgba(57, 255, 20, 0.45);
    --glow-pink: 0 0 15px rgba(255, 0, 85, 0.5);
    --glow-card: 0 10px 30px -10px rgba(0, 242, 254, 0.15);
    
    /* Layout Tokens */
    --font-sans: 'Outfit', sans-serif;
    --font-heading: 'Space Grotesk', sans-serif;
    --font-mono: 'Fira Code', monospace;
    --transition-speed: 0.3s;
    --transition-bezier: cubic-bezier(0.16, 1, 0.3, 1);
    --border-radius: 12px;
}

/* Reset & Base Elements */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    background-color: var(--bg-primary);
    color: var(--color-text);
    overflow-x: hidden;
    line-height: 1.6;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    letter-spacing: -0.02em;
}

a {
    color: inherit;
    text-decoration: none;
}

ul {
    list-style: none;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
    background: var(--bg-secondary);
    border: 2px solid var(--bg-primary);
    border-radius: 10px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--color-cyan);
    box-shadow: var(--glow-cyan);
}

/* Background Effects */
#matrix-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -2;
    opacity: 0.08;
    pointer-events: none;
}

.ambient-light {
    position: fixed;
    width: 600px;
    height: 600px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(0, 242, 254, 0.035) 0%, rgba(0,0,0,0) 70%);
    top: -200px;
    left: -200px;
    z-index: -1;
    pointer-events: none;
    animation: float-ambient 25s ease-in-out infinite alternate;
}

.ambient-light:nth-child(2) {
    background: radial-gradient(circle, rgba(57, 255, 20, 0.025) 0%, rgba(0,0,0,0) 70%);
    bottom: -200px;
    right: -200px;
    top: auto;
    left: auto;
    animation: float-ambient-reverse 30s ease-in-out infinite alternate;
}

@keyframes float-ambient {
    0% { transform: translate(0, 0) scale(1); }
    100% { transform: translate(150px, 80px) scale(1.2); }
}

@keyframes float-ambient-reverse {
    0% { transform: translate(0, 0) scale(1.2); }
    100% { transform: translate(-100px, -120px) scale(0.9); }
}

/* Container */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Scanlines & Tactical CRT Overlay */
.scanlines {
    position: fixed;
    inset: 0;
    pointer-events: none;
    background: linear-gradient(rgba(18, 16, 16, 0) 50%, rgba(0, 0, 0, 0.15) 50%), linear-gradient(90deg, rgba(255, 0, 0, 0.03), rgba(0, 255, 0, 0.01), rgba(0, 0, 255, 0.03));
    background-size: 100% 4px, 3px 100%;
    z-index: 999;
    opacity: 0.4;
}

/* HUD Header & Navigation */
header.hud-nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 100;
    background: var(--bg-nav);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
    transition: var(--transition-speed) var(--transition-bezier);
}

header.hud-nav.scrolled {
    padding: 8px 0;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
    background: rgba(3, 7, 18, 0.95);
}

.nav-wrapper {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.logo-link {
    display: flex;
    align-items: center;
    gap: 12px;
    font-family: var(--font-heading);
    font-size: 1.35rem;
    font-weight: 800;
    letter-spacing: 0.1rem;
    text-transform: uppercase;
}

.logo-shield {
    color: var(--color-cyan);
    filter: drop-shadow(0 0 5px rgba(0, 242, 254, 0.5));
    animation: shield-pulse 4s infinite ease-in-out;
}

@keyframes shield-pulse {
    0%, 100% { filter: drop-shadow(0 0 4px rgba(0, 242, 254, 0.4)); opacity: 0.9; }
    50% { filter: drop-shadow(0 0 12px rgba(0, 242, 254, 0.8)); opacity: 1; }
}

.logo-text {
    background: linear-gradient(135deg, var(--color-cyan) 0%, var(--color-blue) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.logo-status {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    background: rgba(57, 255, 20, 0.1);
    color: var(--color-green);
    border: 1px solid rgba(57, 255, 20, 0.3);
    padding: 2px 6px;
    border-radius: 4px;
    margin-left: 6px;
    letter-spacing: 0;
    display: flex;
    align-items: center;
    gap: 4px;
}

.logo-status::before {
    content: '';
    width: 6px;
    height: 6px;
    background: var(--color-green);
    border-radius: 50%;
    display: inline-block;
    box-shadow: 0 0 6px var(--color-green);
    animation: status-blink 1.5s infinite;
}

@keyframes status-blink {
    0%, 100% { opacity: 0.2; }
    50% { opacity: 1; }
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-link {
    font-family: var(--font-heading);
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--color-text-muted);
    transition: var(--transition-speed);
    position: relative;
    padding: 6px 0;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 1.5px;
    background: var(--color-cyan);
    box-shadow: var(--glow-cyan);
    transition: var(--transition-speed);
}

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

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

.nav-link.active {
    color: var(--color-cyan);
    text-shadow: 0 0 8px rgba(0, 242, 254, 0.3);
}

/* Cybernetic Buttons */
.btn-cyber {
    font-family: var(--font-heading);
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    padding: 10px 20px;
    background: transparent;
    color: var(--color-cyan);
    border: 1px solid var(--color-cyan);
    border-radius: 4px;
    cursor: pointer;
    position: relative;
    overflow: hidden;
    transition: var(--transition-speed);
    clip-path: polygon(8px 0%, 100% 0%, 100% calc(100% - 8px), calc(100% - 8px) 100%, 0% 100%, 0% 8px);
}

.btn-cyber::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(0, 242, 254, 0.2), transparent);
    transition: 0.5s;
}

.btn-cyber:hover {
    background: rgba(0, 242, 254, 0.08);
    box-shadow: var(--glow-cyan);
    border-color: #ffffff;
    text-shadow: 0 0 5px var(--color-cyan);
}

.btn-cyber:hover::before {
    left: 100%;
}

.btn-cyber-solid {
    background: var(--color-cyan);
    color: var(--bg-primary);
    border: 1px solid var(--color-cyan);
    box-shadow: var(--glow-cyan);
}

.btn-cyber-solid:hover {
    background: transparent;
    color: var(--color-cyan);
    border-color: var(--color-cyan);
    box-shadow: none;
    text-shadow: none;
}

/* Mobile Nav Toggle */
.mobile-nav-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    color: var(--color-cyan);
    padding: 6px;
    z-index: 101;
}

.mobile-nav-toggle svg {
    width: 28px;
    height: 28px;
}

/* Hero Section */
.hero-sec {
    position: relative;
    padding: 140px 0 80px 0;
    min-height: 100vh;
    display: flex;
    align-items: center;
    overflow: hidden;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: center;
}

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

.hero-badge {
    display: flex;
    align-items: center;
    gap: 8px;
    background: rgba(0, 242, 254, 0.06);
    border: 1px solid rgba(0, 242, 254, 0.2);
    border-radius: 30px;
    padding: 6px 14px;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--color-cyan);
    margin-bottom: 24px;
    box-shadow: inset 0 0 10px rgba(0, 242, 254, 0.05);
}

.hero-badge-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: var(--color-cyan);
    box-shadow: 0 0 8px var(--color-cyan);
    animation: badge-pulse 2s infinite;
}

@keyframes badge-pulse {
    0%, 100% { transform: scale(1); opacity: 0.5; }
    50% { transform: scale(1.2); opacity: 1; }
}

.hero-title {
    font-size: 4rem;
    line-height: 1.1;
    margin-bottom: 16px;
}

.hero-title-name {
    display: block;
    background: linear-gradient(135deg, var(--color-cyan) 0%, var(--color-blue) 50%, var(--color-green) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    filter: drop-shadow(0 2px 10px rgba(0, 242, 254, 0.15));
}

.hero-subtitle {
    font-size: 1.5rem;
    font-weight: 500;
    color: var(--color-green);
    font-family: var(--font-mono);
    margin-bottom: 24px;
}

.hero-desc {
    font-size: 1.1rem;
    color: var(--color-text-muted);
    margin-bottom: 36px;
    max-width: 520px;
}

.hero-ctas {
    display: flex;
    gap: 16px;
    margin-bottom: 40px;
}

.btn-secondary {
    border: 1px solid var(--color-text-muted);
    color: var(--color-text);
    clip-path: polygon(8px 0%, 100% 0%, 100% calc(100% - 8px), calc(100% - 8px) 100%, 0% 100%, 0% 8px);
    background: rgba(255, 255, 255, 0.02);
}

.btn-secondary:hover {
    border-color: var(--color-text);
    background: rgba(255, 255, 255, 0.08);
}

.hero-metrics {
    display: flex;
    gap: 36px;
    border-top: 1px solid var(--border-color);
    padding-top: 28px;
    width: 100%;
}

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

.metric-number {
    font-family: var(--font-heading);
    font-size: 2.2rem;
    font-weight: 800;
    color: var(--color-cyan);
    line-height: 1;
    margin-bottom: 6px;
    text-shadow: 0 0 10px rgba(0, 242, 254, 0.2);
}

.metric-label {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-text-muted);
}

/* Visual Holographic Card (Hero Right) */
.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
}

.holo-frame {
    position: relative;
    width: 320px;
    height: 320px;
    border-radius: 50%;
    padding: 10px;
    background: radial-gradient(circle, rgba(0, 242, 254, 0.1) 0%, transparent 80%);
}

.holo-ring {
    position: absolute;
    inset: 0;
    border: 2px dashed var(--color-cyan);
    border-radius: 50%;
    opacity: 0.35;
    animation: rotate-clockwise 30s linear infinite;
}

.holo-ring-inner {
    position: absolute;
    inset: 15px;
    border: 1px solid var(--color-green);
    border-radius: 50%;
    opacity: 0.2;
    border-style: dotted;
    animation: rotate-counter-clockwise 20s linear infinite;
}

.profile-hex-container {
    position: relative;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    overflow: hidden;
    border: 3px solid rgba(0, 242, 254, 0.4);
    box-shadow: var(--glow-cyan), inset 0 0 20px rgba(0, 242, 254, 0.4);
    background: var(--bg-secondary);
}

.profile-hex-container img {
    width: 100%;
    height: 100%;
    object-cover: cover;
    filter: brightness(0.9) contrast(1.1) saturate(1.1);
    transition: var(--transition-speed);
}

.holo-glow {
    position: absolute;
    inset: -5px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(0, 242, 254, 0.2) 0%, transparent 60%);
    filter: blur(10px);
    z-index: -1;
    animation: glow-pulse 4s infinite alternate;
}

.holo-scanline {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: rgba(0, 242, 254, 0.6);
    box-shadow: 0 0 10px rgba(0, 242, 254, 0.8);
    opacity: 0.5;
    z-index: 10;
    animation: scan-vertical 3s linear infinite;
    pointer-events: none;
}

@keyframes rotate-clockwise {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

@keyframes rotate-counter-clockwise {
    0% { transform: rotate(360deg); }
    100% { transform: rotate(0deg); }
}

@keyframes glow-pulse {
    0% { opacity: 0.4; transform: scale(0.95); }
    100% { opacity: 0.8; transform: scale(1.05); }
}

@keyframes scan-vertical {
    0% { top: 0%; }
    100% { top: 100%; }
}

/* Glassmorphic Cyber Cards */
.cyber-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 32px;
    box-shadow: var(--glow-card);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    transition: border-color 0.3s, box-shadow 0.3s, transform 0.1s;
    position: relative;
    overflow: hidden;
}

.cyber-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(800px circle at var(--mouse-x, 0) var(--mouse-y, 0), rgba(0, 242, 254, 0.06), transparent 40%);
    z-index: 1;
    pointer-events: none;
}

.cyber-card:hover {
    border-color: var(--border-hover);
    box-shadow: 0 10px 40px -10px rgba(0, 242, 254, 0.25), 0 0 15px rgba(0, 242, 254, 0.1);
}

.card-corner-decor {
    position: absolute;
    width: 6px;
    height: 6px;
    border-color: var(--color-cyan);
    border-style: solid;
    pointer-events: none;
    opacity: 0.4;
    transition: var(--transition-speed);
}

.cyber-card:hover .card-corner-decor {
    opacity: 1;
    border-color: var(--color-green);
}

.decor-tl { top: 8px; left: 8px; border-width: 1.5px 0 0 1.5px; }
.decor-tr { top: 8px; right: 8px; border-width: 1.5px 1.5px 0 0; }
.decor-bl { bottom: 8px; left: 8px; border-width: 0 0 1.5px 1.5px; }
.decor-br { bottom: 8px; right: 8px; border-width: 0 1.5px 1.5px 0; }

/* Interactive Terminal Section */
.terminal-sec {
    padding: 80px 0;
    position: relative;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.section-badge {
    font-family: var(--font-mono);
    color: var(--color-cyan);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    margin-bottom: 12px;
}

.section-title {
    font-size: 2.5rem;
    color: #ffffff;
    position: relative;
}

.section-title span {
    background: linear-gradient(135deg, var(--color-cyan) 0%, var(--color-blue) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.section-divider {
    width: 60px;
    height: 2px;
    background: var(--color-cyan);
    margin-top: 16px;
    box-shadow: var(--glow-cyan);
}

.terminal-window {
    width: 100%;
    max-width: 900px;
    margin: 0 auto;
    background: var(--bg-terminal);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.6), 0 0 20px rgba(0, 242, 254, 0.05);
    overflow: hidden;
}

.terminal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 18px;
    background: #080d1a;
    border-bottom: 1px solid var(--border-color);
}

.terminal-buttons {
    display: flex;
    gap: 8px;
}

.term-btn {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.term-btn-red { background: #ff5f56; }
.term-btn-yellow { background: #ffbd2e; }
.term-btn-green { background: #27c93f; }

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

.terminal-node-status {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--color-cyan);
}

.terminal-body {
    padding: 24px;
    height: 380px;
    overflow-y: auto;
    font-family: var(--font-mono);
    font-size: 0.9rem;
    color: #a5f3fc;
    line-height: 1.5;
}

.terminal-body::-webkit-scrollbar-thumb {
    background: #111a30;
}

.terminal-output {
    margin-bottom: 12px;
}

.term-line {
    margin-bottom: 6px;
    white-space: pre-wrap;
    word-break: break-all;
}

.term-prompt {
    color: var(--color-cyan);
}

.term-cmd {
    color: #ffffff;
    font-weight: 600;
}

.term-success { color: var(--color-green); }
.term-warning { color: #facc15; }
.term-error { color: var(--color-pink); }
.term-info { color: var(--color-blue); }

.terminal-input-line {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--color-cyan);
}

.terminal-input-line input {
    background: transparent;
    border: none;
    outline: none;
    color: #ffffff;
    font-family: var(--font-mono);
    font-size: 0.9rem;
    flex: 1;
    caret-color: var(--color-cyan);
}

.term-caret {
    animation: blink-caret 1s infinite steps(2, start);
}

@keyframes blink-caret {
    0%, 100% { opacity: 0; }
    50% { opacity: 1; }
}

.terminal-shortcuts {
    max-width: 900px;
    margin: 20px auto 0 auto;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 10px;
}

.term-shortcut-btn {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    padding: 6px 12px;
    background: rgba(10, 15, 36, 0.6);
    border: 1px solid rgba(0, 242, 254, 0.2);
    border-radius: 4px;
    color: var(--color-cyan);
    cursor: pointer;
    transition: var(--transition-speed);
}

.term-shortcut-btn:hover {
    background: rgba(0, 242, 254, 0.1);
    border-color: var(--color-cyan);
    box-shadow: 0 0 8px rgba(0, 242, 254, 0.2);
    transform: translateY(-1px);
}

/* About Section & Timelines */
.about-sec {
    padding: 80px 0;
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 40px;
    margin-bottom: 50px;
}

.about-bio {
    grid-column: 1 / -1;
}

.about-bio-text {
    font-size: 1.1rem;
    color: var(--color-text-muted);
    margin-bottom: 20px;
    line-height: 1.7;
}

.about-bio-text span {
    color: var(--color-cyan);
    font-weight: 500;
}

.about-timelines {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
}

.timeline-column {
    display: flex;
    flex-direction: column;
}

.timeline-title {
    font-size: 1.5rem;
    color: #ffffff;
    margin-bottom: 30px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: 10px;
}

.timeline-title svg {
    color: var(--color-cyan);
    width: 22px;
    height: 22px;
}

.timeline-container {
    position: relative;
    padding-left: 28px;
    border-left: 1px solid rgba(0, 242, 254, 0.25);
    display: flex;
    flex-direction: column;
    gap: 32px;
}

.timeline-item {
    position: relative;
}

.timeline-marker {
    position: absolute;
    left: -34px;
    top: 6px;
    width: 11px;
    height: 11px;
    border-radius: 50%;
    background: var(--bg-primary);
    border: 2px solid var(--color-cyan);
    box-shadow: 0 0 0 3px rgba(0, 242, 254, 0.1);
    transition: var(--transition-speed);
}

.timeline-item:hover .timeline-marker {
    background: var(--color-cyan);
    box-shadow: 0 0 10px var(--color-cyan);
    transform: scale(1.2);
}

.timeline-marker.active {
    border-color: var(--color-green);
    box-shadow: 0 0 10px rgba(57, 255, 20, 0.5);
}

.timeline-item:hover .timeline-marker.active {
    background: var(--color-green);
    box-shadow: 0 0 12px var(--color-green);
}

.time-period {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--color-cyan);
    margin-bottom: 6px;
}

.timeline-item:hover .time-period {
    color: var(--color-green);
}

.timeline-role {
    font-size: 1.15rem;
    font-weight: 700;
    color: #ffffff;
    margin-bottom: 4px;
}

.timeline-inst {
    font-size: 0.9rem;
    color: var(--color-text-muted);
    font-weight: 500;
    margin-bottom: 12px;
}

.timeline-desc {
    font-size: 0.95rem;
    color: var(--color-text-muted);
    line-height: 1.6;
}

/* Technical Arsenal & Skill Bars */
.skills-sec {
    padding: 80px 0;
}

.skills-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
}

.skills-intro-card {
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.skills-intro-title {
    font-size: 1.8rem;
    color: #ffffff;
    margin-bottom: 16px;
}

.skills-intro-desc {
    color: var(--color-text-muted);
    margin-bottom: 24px;
    font-size: 1.05rem;
}

.skills-chips-wrapper {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.skill-chip {
    display: flex;
    align-items: center;
    gap: 8px;
    background: rgba(10, 15, 36, 0.5);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 8px 16px;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--color-cyan);
    transition: var(--transition-speed);
}

.skill-chip:hover {
    border-color: var(--color-cyan);
    background: rgba(0, 242, 254, 0.08);
    box-shadow: 0 0 10px rgba(0, 242, 254, 0.15);
    transform: translateY(-2px);
}

.skill-chip.sec-chip {
    color: var(--color-green);
}

.skill-chip.sec-chip:hover {
    border-color: var(--color-green);
    background: rgba(57, 255, 20, 0.08);
    box-shadow: 0 0 10px rgba(57, 255, 20, 0.15);
}

.skills-progress-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.skill-progress-item {
    display: flex;
    flex-direction: column;
}

.skill-label-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
}

.skill-name {
    font-family: var(--font-heading);
    font-size: 1rem;
    font-weight: 600;
    color: #ffffff;
}

.skill-percentage {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--color-cyan);
}

.skill-track {
    width: 100%;
    height: 8px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 10px;
    overflow: hidden;
}

.skill-fill {
    height: 100%;
    width: 0; /* Animated dynamically by JS */
    background: linear-gradient(90deg, var(--color-cyan), var(--color-blue));
    box-shadow: 0 0 8px var(--color-cyan);
    border-radius: 10px;
    transition: 1.5s cubic-bezier(0.16, 1, 0.3, 1);
}

.skill-progress-item:nth-child(even) .skill-fill {
    background: linear-gradient(90deg, var(--color-green), var(--color-blue));
    box-shadow: 0 0 8px var(--color-green);
}

/* Certifications Showcase */
.cert-sec {
    padding: 80px 0;
}

.cert-filter-bar {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-bottom: 40px;
}

.filter-btn {
    font-family: var(--font-heading);
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    padding: 8px 20px;
    background: transparent;
    color: var(--color-text-muted);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    cursor: pointer;
    transition: var(--transition-speed);
}

.filter-btn:hover,
.filter-btn.active {
    color: var(--color-cyan);
    border-color: var(--color-cyan);
    background: rgba(0, 242, 254, 0.05);
    box-shadow: 0 0 10px rgba(0, 242, 254, 0.1);
}

.cert-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 24px;
}

.cert-card {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 24px;
    cursor: pointer;
}

.cert-icon-wrapper {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: rgba(0, 242, 254, 0.08);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-cyan);
    border: 1px solid rgba(0, 242, 254, 0.2);
    transition: var(--transition-speed);
}

.cert-card:hover .cert-icon-wrapper {
    background: var(--color-cyan);
    color: var(--bg-primary);
    box-shadow: var(--glow-cyan);
    border-color: var(--color-cyan);
}

.cert-card.opswat-cert .cert-icon-wrapper {
    background: rgba(57, 255, 20, 0.08);
    color: var(--color-green);
    border-color: rgba(57, 255, 20, 0.2);
}

.cert-card.opswat-cert:hover .cert-icon-wrapper {
    background: var(--color-green);
    color: var(--bg-primary);
    box-shadow: var(--glow-green);
    border-color: var(--color-green);
}

.cert-info {
    flex-grow: 1;
}

.cert-title {
    font-size: 1.05rem;
    font-weight: 700;
    color: #ffffff;
    margin-bottom: 4px;
    transition: var(--transition-speed);
}

.cert-card:hover .cert-title {
    color: var(--color-cyan);
}

.cert-card.opswat-cert:hover .cert-title {
    color: var(--color-green);
}

.cert-issuer {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* Portfolio / Projects Grid */
.portfolio-sec {
    padding: 80px 0;
}

.project-display {
    max-width: 1000px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 48px;
}

.project-showcase {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 40px;
    align-items: center;
}

.project-media {
    position: relative;
    border-radius: var(--border-radius);
    overflow: hidden;
    aspect-ratio: 4/3;
    border: 1px solid var(--border-color);
    box-shadow: var(--glow-card);
}

.project-media::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(0deg, rgba(4, 8, 20, 0.8) 0%, rgba(4, 8, 20, 0.1) 60%);
    pointer-events: none;
}

.project-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.project-media:hover .project-img {
    transform: scale(1.04);
}

.project-meta {
    padding: 16px;
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    z-index: 10;
}

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

.project-tag {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    font-weight: 600;
    padding: 4px 10px;
    border-radius: 4px;
    background: rgba(2, 5, 13, 0.8);
    border: 1px solid var(--border-color);
}

.project-tag.tag-cyan {
    color: var(--color-cyan);
    border-color: rgba(0, 242, 254, 0.3);
}

.project-tag.tag-green {
    color: var(--color-green);
    border-color: rgba(57, 255, 20, 0.3);
}

.project-details {
    display: flex;
    flex-direction: column;
}

.project-heading {
    font-size: 2rem;
    color: #ffffff;
    margin-bottom: 12px;
}

.project-description {
    color: var(--color-text-muted);
    font-size: 1.05rem;
    line-height: 1.6;
    margin-bottom: 24px;
}

.project-description span {
    color: var(--color-text);
    font-weight: 500;
}

.project-bullet-list {
    margin-bottom: 32px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.project-bullet-item {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--color-text-muted);
    display: flex;
    align-items: center;
    gap: 12px;
}

.bullet-icon {
    width: 6px;
    height: 6px;
    background: var(--color-cyan);
    border-radius: 50%;
    box-shadow: 0 0 6px var(--color-cyan);
}

.project-links {
    display: flex;
    gap: 20px;
}

.project-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-weight: 700;
    font-family: var(--font-heading);
    color: var(--color-cyan);
    font-size: 0.95rem;
    transition: var(--transition-speed);
}

.project-link:hover {
    color: #ffffff;
}

.project-link svg {
    width: 20px;
    height: 20px;
    transition: transform var(--transition-speed);
}

.project-link:hover svg {
    transform: translateX(4px);
}

/* Services Grid Layout */
.services-sec {
    padding: 80px 0;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 24px;
}

.service-card {
    display: flex;
    flex-direction: column;
    height: 100%;
}

.service-icon {
    width: 54px;
    height: 54px;
    border-radius: 8px;
    background: rgba(0, 242, 254, 0.08);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-cyan);
    border: 1px solid rgba(0, 242, 254, 0.2);
    margin-bottom: 24px;
    transition: var(--transition-speed);
}

.service-card:hover .service-icon {
    background: var(--color-cyan);
    color: var(--bg-primary);
    box-shadow: var(--glow-cyan);
    border-color: var(--color-cyan);
    transform: translateY(-4px) scale(1.02);
}

.service-card:nth-child(even) .service-icon {
    background: rgba(57, 255, 20, 0.08);
    color: var(--color-green);
    border-color: rgba(57, 255, 20, 0.2);
}

.service-card:nth-child(even):hover .service-icon {
    background: var(--color-green);
    color: var(--bg-primary);
    box-shadow: var(--glow-green);
    border-color: var(--color-green);
}

.service-title {
    font-size: 1.25rem;
    color: #ffffff;
    margin-bottom: 12px;
    transition: var(--transition-speed);
}

.service-card:hover .service-title {
    color: var(--color-cyan);
}

.service-card:nth-child(even):hover .service-title {
    color: var(--color-green);
}

.service-desc {
    color: var(--color-text-muted);
    font-size: 0.95rem;
    line-height: 1.5;
}

/* Insights / Blog Articles */
.blog-sec {
    padding: 80px 0;
}

.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 32px;
    margin-bottom: 48px;
}

.blog-card {
    display: flex;
    flex-direction: column;
    height: 100%;
    padding: 0;
    overflow: hidden;
}

.blog-img-wrapper {
    position: relative;
    width: 100%;
    height: 190px;
    overflow: hidden;
}

.blog-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s;
}

.blog-card:hover .blog-img {
    transform: scale(1.05);
}

.blog-img-wrapper::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(10, 15, 36, 1) 0%, transparent 60%);
    pointer-events: none;
}

.blog-content {
    padding: 24px;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.blog-date {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--color-cyan);
    margin-bottom: 10px;
}

.blog-title {
    font-size: 1.2rem;
    color: #ffffff;
    margin-bottom: 12px;
    line-height: 1.4;
    transition: var(--transition-speed);
}

.blog-card:hover .blog-title {
    color: var(--color-cyan);
}

.blog-desc {
    color: var(--color-text-muted);
    font-size: 0.95rem;
    line-height: 1.5;
    margin-bottom: 16px;
    flex-grow: 1;
}

.blog-readmore {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--color-cyan);
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-weight: 600;
}

.blog-readmore svg {
    width: 14px;
    height: 14px;
    transition: transform 0.3s;
}

.blog-card:hover .blog-readmore svg {
    transform: translateX(4px);
}

.blog-cta-wrapper {
    display: flex;
    justify-content: center;
}

/* Call to Action Container */
.cta-sec {
    padding: 80px 0;
    position: relative;
}

.cta-card {
    text-align: center;
    padding: 60px 40px;
    background: radial-gradient(circle at 50% 50%, rgba(0, 242, 254, 0.08) 0%, rgba(10, 15, 36, 0.9) 80%);
    border: 1px solid var(--border-hover);
    box-shadow: 0 15px 50px rgba(0, 242, 254, 0.1), var(--glow-card);
}

.cta-title {
    font-size: 2.5rem;
    color: #ffffff;
    margin-bottom: 16px;
}

.cta-title span {
    background: linear-gradient(135deg, var(--color-cyan) 0%, var(--color-green) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    filter: drop-shadow(0 0 10px rgba(0, 242, 254, 0.15));
}

.cta-desc {
    font-size: 1.1rem;
    color: var(--color-text-muted);
    max-width: 600px;
    margin: 0 auto 36px auto;
}

.cta-card .btn-cyber {
    padding: 14px 32px;
    font-size: 0.9rem;
}

/* Contact Console Form */
.contact-sec {
    padding: 80px 0;
}

.contact-layout {
    max-width: 700px;
    margin: 0 auto;
}

.contact-form-card {
    padding: 40px;
}

.contact-form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    margin-bottom: 24px;
}

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

.form-group.full-width {
    grid-column: 1 / -1;
}

.form-label {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--color-cyan);
    margin-bottom: 8px;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.form-input {
    background: rgba(2, 5, 13, 0.6);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 14px 18px;
    color: #ffffff;
    font-family: var(--font-sans);
    font-size: 0.95rem;
    transition: var(--transition-speed);
}

.form-input::placeholder {
    color: rgba(255, 255, 255, 0.15);
}

.form-input:focus {
    outline: none;
    border-color: var(--color-cyan);
    box-shadow: 0 0 12px rgba(0, 242, 254, 0.2);
    background: rgba(2, 5, 13, 0.9);
}

.form-textarea {
    resize: none;
    min-height: 140px;
}

.contact-btn-wrapper {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.contact-btn-wrapper .btn-cyber {
    width: 100%;
    padding: 14px;
    font-size: 0.9rem;
}

.form-status-console {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    background: rgba(2, 5, 13, 0.8);
    border: 1px solid rgba(0, 242, 254, 0.1);
    border-radius: 4px;
    padding: 12px 16px;
    min-height: 42px;
    display: flex;
    align-items: center;
    color: var(--color-text-muted);
}

.contact-channels {
    margin-top: 40px;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    padding-top: 32px;
    display: flex;
    justify-content: center;
    gap: 40px;
}

.contact-channel-item {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--color-text-muted);
    font-size: 0.9rem;
    transition: var(--transition-speed);
}

.contact-channel-item:hover {
    color: var(--color-cyan);
}

.contact-channel-item svg {
    width: 20px;
    height: 20px;
}

/* Footer Section */
footer.cyber-footer {
    border-top: 1px solid var(--border-color);
    background: #02040a;
    padding: 40px 0;
    position: relative;
    z-index: 10;
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    text-align: center;
}

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

.footer-copyright span {
    color: rgba(0, 242, 254, 0.5);
}

.footer-tagline {
    font-size: 0.7rem;
    color: var(--color-text-dark);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

/* Base Scroll- Reveal Animations */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal.revealed {
    opacity: 1;
    transform: translateY(0);
}

/* Responsive Styles */
@media (max-width: 1024px) {
    .hero-title {
        font-size: 3.2rem;
    }
}

@media (max-width: 900px) {
    .hero-grid {
        grid-template-columns: 1fr;
        gap: 60px;
        text-align: center;
    }
    
    .hero-content {
        align-items: center;
    }
    
    .hero-desc {
        max-width: 100%;
    }
    
    .hero-metrics {
        justify-content: center;
    }
    
    .about-timelines {
        grid-template-columns: 1fr;
        gap: 50px;
    }
    
    .skills-wrapper {
        grid-template-columns: 1fr;
        gap: 50px;
    }
    
    .project-showcase {
        grid-template-columns: 1fr;
        gap: 32px;
    }
    
    .project-details {
        text-align: left;
    }
}

@media (max-width: 768px) {
    header.hud-nav {
        padding: 4px 0;
    }
    
    .nav-links {
        position: fixed;
        top: 70px;
        left: 0;
        width: 100%;
        height: calc(100vh - 70px);
        background: var(--bg-primary);
        flex-direction: column;
        justify-content: center;
        gap: 40px;
        z-index: 100;
        transform: translateX(-100%);
        transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
        border-top: 1px solid var(--border-color);
        padding-bottom: 80px;
    }
    
    .nav-links.open {
        transform: translateX(0);
    }
    
    .mobile-nav-toggle {
        display: block;
    }
    
    .contact-form-grid {
        grid-template-columns: 1fr;
        gap: 18px;
    }
    
    .contact-channels {
        flex-direction: column;
        align-items: center;
        gap: 16px;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.2rem;
    }
    
    .hero-ctas {
        flex-direction: column;
        width: 100%;
        gap: 12px;
    }
    
    .hero-ctas .btn-cyber {
        width: 100%;
    }
    
    .hero-metrics {
        flex-direction: column;
        gap: 20px;
        align-items: center;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .contact-form-card {
        padding: 24px;
    }
}