/* ==========================================================================
   MASTER CYBERPUNK ARCHITECTURE STYLE CODES
   CORE STACK SYSTEM FOR PORTFOLIO INTERFACE
   ========================================================================== */

/* Root Variable Defs across components */
:root {
    --bg-deep-black: #05080c;
    --bg-dark-gray: #0b1118;
    --bg-glass-panel: rgba(11, 17, 24, 0.75);
    --border-glass: rgba(0, 229, 255, 0.15);
    
    --neon-green: #00ff66;
    --neon-green-glow: rgba(0, 255, 102, 0.4);
    --neon-cyan: #00e5ff;
    --neon-cyan-glow: rgba(0, 229, 255, 0.4);
    --neon-red: #ff0055;
    
    --text-pure-white: #ffffff;
    --text-high-gray: #ccd6f6;
    --text-muted-gray: #8892b0;
    
    --font-mono: 'Courier New', Courier, monospace;
    --font-sans: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    
    --transition-snappy: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-smooth: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Base Level Resets and System Constraints */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    scroll-behavior: smooth;
}

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

/* Digital Matrix Canvas Layout */
#matrix-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: -1;
    opacity: 0.06;
    pointer-events: none;
}

/* Custom Scrollbar System Configs */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}
::-webkit-scrollbar-track {
    background: var(--bg-deep-black);
}
::-webkit-scrollbar-thumb {
    background: #142132;
    border-radius: 4px;
    border: 1px solid var(--border-glass);
}
::-webkit-scrollbar-thumb:hover {
    background: var(--neon-cyan);
    box-shadow: 0 0 10px var(--neon-cyan);
}

/* Typography Overhaul and Utility Classes */
h1, h2, h3, h4, h5, h6 {
    color: var(--text-pure-white);
    font-weight: 700;
    letter-spacing: 1px;
}

a {
    color: var(--neon-cyan);
    text-decoration: none;
    transition: var(--transition-snappy);
}

/* Main Header & Fixed Layout Controls */
.main-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 80px;
    background: rgba(5, 8, 12, 0.85);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-glass);
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 50px;
    z-index: 1000;
    transition: var(--transition-smooth);
}

.main-header.scrolled {
    height: 65px;
    background: rgba(5, 8, 12, 0.95);
    box-shadow: 0 10px 30px rgba(0,0,0,0.5);
}

.logo {
    font-family: var(--font-mono);
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--text-pure-white);
}

.logo .bracket {
    color: var(--neon-cyan);
    text-shadow: 0 0 8px var(--neon-cyan-glow);
}

.navbar {
    display: flex;
    gap: 30px;
}

.nav-link {
    font-family: var(--font-mono);
    font-size: 0.9rem;
    color: var(--text-muted-gray);
    padding: 5px 10px;
    position: relative;
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav-link i {
    font-size: 0.8rem;
}

.nav-link:hover, .nav-link.active {
    color: var(--neon-cyan);
    text-shadow: 0 0 8px var(--neon-cyan-glow);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--neon-cyan);
    box-shadow: 0 0 8px var(--neon-cyan);
    transition: var(--transition-snappy);
}

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

.system-status {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--neon-green);
    border: 1px solid rgba(0, 255, 102, 0.2);
    padding: 6px 12px;
    background: rgba(0, 255, 102, 0.03);
    border-radius: 4px;
    display: flex;
    align-items: center;
    gap: 8px;
}

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

/* Section Structural Architectures */
.hero-section, .about-section, .skills-section, .os-section, .achievements-section, .contact-section {
    padding: 120px 10% 80px 10%;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    position: relative;
}

.section-title-wrapper {
    margin-bottom: 60px;
    position: relative;
}

.section-heading {
    font-size: 2.2rem;
    text-transform: uppercase;
    font-family: var(--font-sans);
    display: inline-block;
    position: relative;
}

.heading-line {
    width: 150px;
    height: 3px;
    background: linear-gradient(90deg, var(--neon-cyan), transparent);
    margin-top: 10px;
    box-shadow: 0 0 10px var(--neon-cyan-glow);
}

/* Hero Content Area Styles */
.hero-container {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 50px;
    align-items: center;
}

.glitch {
    font-size: 4.5rem;
    font-weight: 900;
    position: relative;
    color: var(--text-pure-white);
    letter-spacing: -2px;
}

.subtitle {
    font-size: 1.8rem;
    color: var(--neon-cyan);
    font-family: var(--font-mono);
    margin-bottom: 25px;
    text-shadow: 0 0 10px var(--neon-cyan-glow);
}

.hero-description {
    font-size: 1.1rem;
    color: var(--text-high-gray);
    max-width: 600px;
    margin-bottom: 40px;
}

.hero-cta-group {
    display: flex;
    gap: 20px;
}

/* Button UI Core Elements */
.btn {
    font-family: var(--font-mono);
    padding: 14px 28px;
    font-size: 0.95rem;
    font-weight: bold;
    text-transform: uppercase;
    border-radius: 4px;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    transition: var(--transition-snappy);
}

.btn-primary {
    background-color: transparent;
    color: var(--neon-cyan);
    border: 1px solid var(--neon-cyan);
    box-shadow: inset 0 0 0 0 rgba(0, 229, 255, 0.1);
}

.btn-primary:hover {
    background-color: rgba(0, 229, 255, 0.08);
    box-shadow: 0 0 20px var(--neon-cyan-glow), inset 0 0 10px var(--neon-cyan-glow);
    text-shadow: 0 0 5px var(--text-pure-white);
}

.btn-secondary {
    background-color: transparent;
    color: var(--text-muted-gray);
    border: 1px solid var(--text-muted-gray);
}

.btn-secondary:hover {
    color: var(--text-pure-white);
    border-color: var(--text-pure-white);
    background-color: rgba(255,255,255,0.02);
}

/* Terminal Framework Layout Controls */
.terminal-wrapper {
    background: var(--bg-dark-gray);
    border: 1px solid var(--border-glass);
    border-radius: 8px;
    box-shadow: 0 20px 50px rgba(0,0,0,0.6);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    height: 400px;
    backdrop-filter: blur(6px);
}

.terminal-header {
    background: #0e1722;
    padding: 12px 20px;
    display: flex;
    align-items: center;
    border-bottom: 1px solid rgba(0, 229, 255, 0.08);
}

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

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

.term-btn.close { background-color: var(--neon-red); }
.term-btn.minimize { background-color: #ffaa00; }
.term-btn.expand { background-color: var(--neon-green); }

.terminal-title {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--text-muted-gray);
    margin-left: 20px;
    flex-grow: 1;
    text-align: left;
}

.terminal-body {
    padding: 20px;
    font-family: var(--font-mono);
    font-size: 0.9rem;
    overflow-y: auto;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.terminal-line {
    word-break: break-all;
    line-height: 1.4;
    white-space: pre-wrap;
}

.term-user {
    color: var(--neon-green);
}

.terminal-line.success { color: var(--neon-green); }
.terminal-line.info { color: #a4b1cd; }
.terminal-line.error { color: var(--neon-red); }

.terminal-input-row {
    display: flex;
    align-items: center;
    padding: 10px 20px;
    background: #070c12;
    border-top: 1px solid rgba(0, 229, 255, 0.05);
    font-family: var(--font-mono);
    font-size: 0.9rem;
}

#terminal-input {
    background: transparent;
    border: none;
    outline: none;
    color: var(--neon-cyan);
    font-family: var(--font-mono);
    font-size: 0.9rem;
    flex-grow: 1;
    margin-left: 8px;
    width: 100%;
}

.typing-placeholder::after {
    content: '▋';
    color: var(--neon-cyan);
    animation: blinkCursor 0.8s infinite;
}

/* About Operational Profile Area */
.about-grid {
    display: grid;
    grid-template-columns: 0.8fr 1.2fr;
    gap: 50px;
    align-items: flex-start;
}

.profile-card {
    background: var(--bg-glass-panel);
    border: 1px solid var(--border-glass);
    padding: 40px 30px;
    border-radius: 8px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.scanner-line {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, transparent, var(--neon-cyan), transparent);
    animation: cardScan 4s linear infinite;
}

.profile-icon-wrapper {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    border: 2px dashed var(--neon-cyan);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 25px auto;
    font-size: 2.5rem;
    color: var(--neon-cyan);
    text-shadow: 0 0 15px var(--neon-cyan-glow);
    background: rgba(0, 229, 255, 0.02);
}

.profile-card h3 {
    font-size: 1.4rem;
    margin-bottom: 8px;
}

.profile-role {
    font-family: var(--font-mono);
    color: var(--neon-green);
    font-size: 0.9rem;
    margin-bottom: 30px;
}

.bio-data-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
    text-align: left;
    border-top: 1px solid rgba(255,255,255,0.05);
    padding-top: 20px;
}

.bio-item {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    display: flex;
    justify-content: space-between;
}

.bio-item .label { color: var(--text-muted-gray); }
.bio-item .val { color: var(--text-pure-white); }
.bio-item .security-high {
    color: var(--neon-green);
    font-weight: bold;
}

.bio-narrative h4 {
    font-size: 1.6rem;
    margin-bottom: 20px;
    color: var(--text-pure-white);
}

.bio-narrative p {
    color: var(--text-high-gray);
    margin-bottom: 20px;
    font-size: 1.05rem;
}

.stat-boxes {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-top: 40px;
}

.stat-box {
    background: #0d151f;
    border: 1px solid rgba(255,255,255,0.03);
    padding: 25px 15px;
    border-radius: 6px;
    text-align: center;
    transition: var(--transition-snappy);
}

.stat-box:hover {
    border-color: var(--border-glass);
    transform: translateY(-5px);
    background: #111b29;
}

.stat-num {
    font-size: 2.2rem;
    font-weight: 800;
    color: var(--neon-cyan);
    font-family: var(--font-mono);
}

.stat-plus {
    font-size: 1.5rem;
    color: var(--neon-green);
    font-family: var(--font-mono);
}

.stat-lbl {
    font-size: 0.85rem;
    color: var(--text-muted-gray);
    margin-top: 5px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Skills Matrix Framework Grid */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.skill-node {
    background: var(--bg-glass-panel);
    border: 1px solid var(--border-glass);
    padding: 40px 30px;
    border-radius: 8px;
    transition: var(--transition-smooth);
    display: flex;
    flex-direction: column;
}

.skill-node:hover {
    transform: translateY(-8px);
    box-shadow: 0 15px 35px rgba(0, 229, 255, 0.05);
    background: rgba(11, 17, 24, 0.9);
}

.skill-tech-header {
    display: flex;
    align-items: center;
    gap: 20px;
    margin-bottom: 25px;
}

.tech-icon {
    font-size: 2.8rem;
}

.js-node .tech-icon { color: #f7df1e; }
.python-node .tech-icon { color: #3776ab; }
.cpp-node .tech-icon { color: #00599c; }

.skill-node h3 {
    font-size: 1.3rem;
}

.skill-description {
    color: var(--text-high-gray);
    font-size: 0.95rem;
    margin-bottom: 30px;
    flex-grow: 1;
}

.skill-progress-wrapper {
    margin-bottom: 30px;
}

.skill-labels {
    display: flex;
    justify-content: space-between;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    margin-bottom: 8px;
    color: var(--text-pure-white);
}

.progress-bar {
    width: 100%;
    height: 6px;
    background: #121c29;
    border-radius: 3px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--neon-cyan), var(--neon-green));
    box-shadow: 0 0 8px var(--neon-cyan);
    border-radius: 3px;
    width: 0%; /* Fired dynamically in code script */
    transition: width 1.5s cubic-bezier(0.1, 1, 0.1, 1);
}

.skill-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.tag {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    background: #0f1a26;
    color: var(--text-muted-gray);
    padding: 4px 10px;
    border-radius: 4px;
    border: 1px solid rgba(255,255,255,0.02);
}

/* Multi-OS Environment Panels */
.section-desc-center {
    text-align: center;
    max-width: 700px;
    margin: -30px auto 60px auto;
    font-size: 1.1rem;
    color: var(--text-muted-gray);
}

.os-flex-container {
    display: flex;
    gap: 40px;
}

.os-card {
    flex: 1;
    background: var(--bg-glass-panel);
    border: 1px solid var(--border-glass);
    padding: 45px 40px;
    border-radius: 10px;
    position: relative;
    overflow: hidden;
    transition: var(--transition-smooth);
}

.os-bg-glow {
    position: absolute;
    width: 300px;
    height: 300px;
    border-radius: 50%;
    z-index: 0;
    pointer-events: none;
    opacity: 0.03;
    transition: var(--transition-smooth);
}

.windows-card .os-bg-glow {
    background: var(--neon-cyan);
    top: -150px;
    right: -150px;
}

.kali-card .os-bg-glow {
    background: var(--neon-green);
    top: -150px;
    right: -150px;
}

.os-card:hover {
    border-color: rgba(0, 229, 255, 0.3);
    box-shadow: 0 20px 45px rgba(0,0,0,0.4);
}

.os-card:hover .os-bg-glow {
    opacity: 0.08;
    width: 350px;
    height: 350px;
}

.os-icon-header {
    display: flex;
    align-items: center;
    gap: 20px;
    margin-bottom: 25px;
    position: relative;
    z-index: 1;
}

.os-icon-header i {
    font-size: 2.5rem;
}

.windows-card .os-icon-header i { color: var(--neon-cyan); }
.kali-card .os-icon-header i { color: #8c92ac; }

.os-icon-header h3 {
    font-size: 1.5rem;
}

.os-usecase {
    font-family: var(--font-mono);
    color: var(--neon-green);
    font-size: 0.95rem;
    margin-bottom: 20px;
    position: relative;
    z-index: 1;
}

.os-card p {
    color: var(--text-high-gray);
    font-size: 1rem;
    margin-bottom: 30px;
    position: relative;
    z-index: 1;
}

.os-spec-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 12px;
    position: relative;
    z-index: 1;
}

.os-spec-list li {
    display: flex;
    align-items: center;
    gap: 12px;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--text-high-gray);
}

.os-spec-list li i {
    font-size: 0.95rem;
}

.windows-card .os-spec-list li i { color: var(--neon-cyan); }
.kali-card .os-spec-list li i { color: var(--neon-green); }

/* Security Arena Timeline Tracks */
.timeline-container {
    position: relative;
    max-width: 900px;
    margin: 0 auto;
}

.timeline-container::after {
    content: '';
    position: absolute;
    width: 2px;
    background: linear-gradient(180deg, var(--neon-cyan), var(--neon-green), transparent);
    top: 0;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
}

.timeline-item {
    padding: 10px 40px;
    position: relative;
    background: transparent;
    width: 50%;
}

.timeline-item.left { left: 0; }
.timeline-item.right { left: 50%; }

.timeline-dot {
    width: 40px;
    height: 40px;
    position: absolute;
    right: -20px;
    top: 15px;
    background: var(--bg-dark-gray);
    border: 2px solid var(--neon-cyan);
    box-shadow: 0 0 10px var(--neon-cyan-glow);
    border-radius: 50%;
    z-index: 10;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--neon-cyan);
    font-size: 0.9rem;
}

.timeline-item.right .timeline-dot {
    left: -20px;
    border-color: var(--neon-green);
    color: var(--neon-green);
    box-shadow: 0 0 10px var(--neon-green-glow);
}

.timeline-content {
    padding: 30px;
    background: var(--bg-glass-panel);
    border: 1px solid var(--border-glass);
    border-radius: 8px;
    position: relative;
    transition: var(--transition-smooth);
}

.timeline-item:hover .timeline-content {
    border-color: rgba(0,229,255,0.4);
    box-shadow: 0 10px 30px rgba(0,0,0,0.3);
}

.timeline-date {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--neon-cyan);
    font-weight: bold;
    display: block;
    margin-bottom: 8px;
    letter-spacing: 1px;
}

.timeline-item.right .timeline-date {
    color: var(--neon-green);
}

.timeline-content h3 {
    font-size: 1.3rem;
    margin-bottom: 12px;
}

.timeline-content p {
    font-size: 0.95rem;
    color: var(--text-high-gray);
}

/* Interactive Data Streams Form Layouts */
.contact-box-container {
    max-width: 800px;
    margin: 0 auto;
    width: 100%;
}

.contact-form {
    background: var(--bg-glass-panel);
    border: 1px solid var(--border-glass);
    padding: 50px;
    border-radius: 10px;
    display: flex;
    flex-direction: column;
    gap: 25px;
    backdrop-filter: blur(8px);
}

.form-row {
    display: flex;
    gap: 30px;
}

.input-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
    flex: 1;
}

.input-group label {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--text-pure-white);
    text-transform: uppercase;
}

.input-group input, .input-group textarea {
    background: #090f16;
    border: 1px solid #1a2a3a;
    border-radius: 4px;
    padding: 14px 18px;
    color: var(--text-pure-white);
    font-family: var(--font-sans);
    font-size: 0.95rem;
    transition: var(--transition-snappy);
    width: 100%;
}

.input-group textarea {
    resize: vertical;
}

.input-group input:focus, .input-group textarea:focus {
    outline: none;
    border-color: var(--neon-cyan);
    box-shadow: 0 0 12px rgba(0, 229, 255, 0.15);
    background: #0d1620;
}

.btn-submit {
    background: transparent;
    border: 1px solid var(--neon-green);
    color: var(--neon-green);
    justify-content: center;
    width: 100%;
    margin-top: 10px;
}

.btn-submit:hover {
    background: rgba(0, 255, 102, 0.05);
    box-shadow: 0 0 20px var(--neon-green-glow);
    text-shadow: 0 0 5px var(--text-pure-white);
}

.form-feedback {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    text-align: center;
    min-height: 20px;
}

.form-feedback.success { color: var(--neon-green); }
.form-feedback.error { color: var(--neon-red); }

/* Custom System Footers */
.system-footer {
    background: #030508;
    border-top: 1px solid var(--border-glass);
    padding: 40px 10% 30px 10%;
    font-family: var(--font-mono);
}

.footer-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--text-muted-gray);
    font-size: 0.85rem;
}

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

.social-icon {
    font-size: 1.2rem;
    color: var(--text-muted-gray);
}

.social-icon:hover {
    color: var(--neon-cyan);
    text-shadow: 0 0 8px var(--neon-cyan-glow);
}

.footer-divider {
    border: 0;
    height: 1px;
    background: rgba(255,255,255,0.05);
    margin: 25px 0;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    font-size: 0.8rem;
    color: #53617c;
}

.timestamp {
    color: var(--neon-green);
}

/* Structural Animation Loops */
@keyframes networkPulse {
    0% { transform: scale(1); opacity: 1; box-shadow: 0 0 8px var(--neon-green); }
    50% { transform: scale(1.1); opacity: 0.6; box-shadow: 0 0 15px var(--neon-green); }
    100% { transform: scale(1); opacity: 1; box-shadow: 0 0 8px var(--neon-green); }
}

@keyframes blinkCursor {
    0%, 100% { opacity: 1; }
    50% { opacity: 0; }
}

@keyframes cardScan {
    0% { top: 0; }
    50% { top: 100%; }
    100% { top: 0; }
}

/* Adaptive Responsive Configurations across Viewports */
@media (max-width: 1024px) {
    .hero-container, .about-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    .terminal-wrapper {
        height: 350px;
    }
    .skills-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .os-flex-container {
        flex-direction: column;
    }
}

@media (max-width: 768px) {
    .main-header {
        padding: 0 20px;
    }
    .navbar {
        display: none; /* Can expand to hamb menu if desired */
    }
    .glitch {
        font-size: 3rem;
    }
    .subtitle {
        font-size: 1.4rem;
    }
    .skills-grid {
        grid-template-columns: 1fr;
    }
    .timeline-container::after {
        left: 20px;
    }
    .timeline-item {
        width: 100%;
        padding-left: 50px;
        padding-right: 0;
    }
    .timeline-item.right {
        left: 0;
    }
    .timeline-dot {
        left: 0 !important;
    }
    .form-row {
        flex-direction: column;
        gap: 25px;
    }
    .contact-form {
        padding: 25px;
    }
}