/* ===== CYBERSECURITY PORTFOLIO CSS ===== */

/* CSS Variables */
:root {
    --primary-bg: #0a0a0a;
    --secondary-bg: #1a1a1a;
    --card-bg: #1e1e1e;
    --terminal-bg: #0d1117;
    --accent-blue: #4da6ff;
    --accent-cyan: #66e0ff;
    --accent-purple: #a78bfa;
    --accent-red: #ff8a8a;
    --text-primary: #ffffff;
    --text-secondary: #8b949e;
    --text-muted: #6e7681;
    --border-color: #30363d;
    --shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    --gradient-primary: linear-gradient(135deg, #4da6ff 0%, #66e0ff 100%);
    --gradient-secondary: linear-gradient(135deg, #1a1a1a 0%, #2d2d2d 100%);
}

/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Fira Code', 'Consolas', 'Courier New', 'Monaco', 'Menlo', monospace;
    background-color: var(--primary-bg);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    transition: all 0.3s ease;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.nav-logo .terminal-prompt {
    font-family: 'Fira Code', 'Consolas', 'Courier New', monospace;
    color: var(--accent-blue);
    font-size: 1.2rem;
    font-weight: 600;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

.nav-link:hover,
.nav-link.active {
    color: var(--accent-blue);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: width 0.3s ease;
}

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

/* Hamburger Menu */
.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 4px;
}

.hamburger .bar {
    width: 25px;
    height: 3px;
    background: var(--text-primary);
    transition: 0.3s;
}

.hamburger.active .bar:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.hamburger.active .bar:nth-child(2) {
    opacity: 0;
}

.hamburger.active .bar:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 6rem 2rem 2rem;
    background: radial-gradient(circle at 30% 60%, rgba(77, 166, 255, 0.15) 0%, transparent 50%),
                radial-gradient(circle at 70% 40%, rgba(102, 224, 255, 0.1) 0%, transparent 50%);
}

.hero-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    max-width: 1200px;
    width: 100%;
}

.terminal-window {
    background: var(--terminal-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow);
}

.terminal-header {
    background: var(--secondary-bg);
    padding: 1rem 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid var(--border-color);
}

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

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

.control.close {
    background: var(--accent-red);
}

.control.minimize {
    background: #ffca2c;
}

.control.maximize {
    background: var(--accent-blue);
}

.terminal-title {
    font-family: 'Fira Code', 'Consolas', 'Courier New', monospace;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.terminal-body {
    padding: 1.5rem;
    font-family: 'Fira Code', 'Consolas', 'Courier New', monospace;
    font-size: 0.9rem;
    line-height: 1.8;
}

.terminal-line {
    margin-bottom: 1rem;
}

.prompt {
    color: var(--accent-blue);
    margin-right: 0.5rem;
}

.command {
    color: var(--accent-cyan);
}

.terminal-output {
    margin: 1rem 0;
    padding-left: 1rem;
    border-left: 2px solid var(--accent-blue);
}

.terminal-output h1 {
    font-size: 2.5rem;
    background: var(--gradient-primary);
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 0.5rem;
}

.role {
    font-size: 1.2rem;
    color: var(--accent-cyan);
    margin-bottom: 0.25rem;
}

.company {
    color: var(--text-secondary);
    font-size: 1rem;
}

.live-terminal {
    background: var(--terminal-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    width: 100%;
    max-width: 450px;
    margin: 0 auto;
    box-shadow: var(--shadow), 0 0 20px rgba(77, 166, 255, 0.2);
    overflow: hidden;
    position: relative;
}

.live-terminal::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--gradient-primary);
    animation: pulse 2s ease-in-out infinite;
}

.terminal-content {
    padding: 1rem;
    font-family: 'Fira Code', 'Consolas', 'Courier New', monospace;
    font-size: 0.75rem;
    line-height: 1.4;
    max-height: 400px;
    overflow-y: auto;
}

.terminal-line {
    margin-bottom: 0.3rem;
    display: flex;
    align-items: flex-start;
    flex-wrap: wrap;
}

.terminal-line.active {
    margin-bottom: 0;
}

.prompt {
    color: var(--accent-blue);
    margin-right: 0.5rem;
    font-weight: 600;
    white-space: nowrap;
}

.command {
    color: var(--accent-cyan);
    font-weight: 500;
}

.command-input {
    display: flex;
    align-items: center;
}

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

.cursor {
    color: var(--accent-blue);
    animation: blink 1s infinite;
}

.output {
    color: var(--text-secondary);
    margin-left: 1.5rem;
    margin-bottom: 0.2rem;
    font-size: 0.7rem;
    animation: fadeInTerminal 0.5s ease-out;
}

.output.success {
    color: var(--accent-blue);
}

.output.warning {
    color: #ffa726;
}

.output.error {
    color: var(--accent-red);
}

.live-log {
    color: var(--accent-cyan);
    animation: pulse 2s ease-in-out infinite;
}

.terminal-content::-webkit-scrollbar {
    width: 4px;
}

.terminal-content::-webkit-scrollbar-track {
    background: var(--secondary-bg);
    border-radius: 2px;
}

.terminal-content::-webkit-scrollbar-thumb {
    background: var(--accent-blue);
    border-radius: 2px;
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}



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

/* Section Styles */
section {
    padding: 6rem 0;
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: 3rem;
    text-align: center;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
}

.section-title i {
    color: var(--accent-blue);
}

/* Experience Section */
.experience {
    background: var(--secondary-bg);
}

.timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--accent-blue);
    transform: translateX(-50%);
}

.timeline-item {
    position: relative;
    margin: 3rem 0;
    display: flex;
    align-items: center;
}

.timeline-item:nth-child(odd) {
    flex-direction: row-reverse;
}

.timeline-marker {
    width: 20px;
    height: 20px;
    background: var(--accent-blue);
    border-radius: 50%;
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    z-index: 10;
    box-shadow: 0 0 0 4px var(--secondary-bg);
}

.timeline-content {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow);
    width: 45%;
    margin: 0 2rem;
}

.timeline-content h3 {
    color: var(--accent-blue);
    margin-bottom: 0.5rem;
    font-size: 1.4rem;
}

.timeline-content .company {
    color: var(--accent-cyan);
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.timeline-content .period {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.responsibilities {
    list-style: none;
    margin-top: 1rem;
}

.responsibilities li {
    padding: 0.25rem 0;
    color: var(--text-secondary);
    position: relative;
    padding-left: 1.5rem;
}

.responsibilities li::before {
    content: '▶';
    color: var(--accent-blue);
    position: absolute;
    left: 0;
    top: 0.25rem;
}

/* Education Section */
.education {
    background: var(--secondary-bg);
    padding: 4rem 0;
}

.education-content {
    max-width: 800px;
    margin: 0 auto;
}

.education-item {
    display: flex;
    align-items: flex-start;
    gap: 2rem;
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.education-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow), 0 0 20px rgba(77, 166, 255, 0.1);
}

.education-icon {
    min-width: 60px;
    height: 60px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-primary);
    font-size: 1.5rem;
    box-shadow: 0 4px 15px rgba(77, 166, 255, 0.3);
}

.education-details h3 {
    color: var(--text-primary);
    font-size: 1.4rem;
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.university {
    color: var(--accent-blue);
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.period {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 1rem;
    font-style: italic;
}

.concentration, .gpa {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
}

.concentration-label, .gpa-label {
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 500;
}

.concentration-value {
    color: var(--accent-cyan);
    font-weight: 600;
    background: rgba(102, 224, 255, 0.1);
    padding: 0.2rem 0.6rem;
    border-radius: 4px;
    border: 1px solid var(--accent-cyan);
}

.gpa-value {
    color: var(--accent-blue);
    font-weight: 600;
    font-size: 1.1rem;
}

/* Skills Section */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.skill-category {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow);
    transition: transform 0.3s ease;
}

.skill-category:hover {
    transform: translateY(-5px);
}

.skill-category h3 {
    color: var(--accent-blue);
    margin-bottom: 1.5rem;
    font-size: 1.3rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.skill-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.tag {
    background: var(--secondary-bg);
    color: var(--text-primary);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.9rem;
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

.tag:hover {
    background: var(--accent-blue);
    color: var(--primary-bg);
    transform: translateY(-2px);
}

/* Projects Section */
.projects {
    background: var(--secondary-bg);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.project-card {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.project-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.project-card:hover::before {
    transform: scaleX(1);
}

.project-card:hover {
    transform: translateY(-5px);
}

.project-icon {
    width: 60px;
    height: 60px;
    background: var(--secondary-bg);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1rem;
    border: 1px solid var(--border-color);
}

.project-icon i {
    font-size: 1.5rem;
    color: var(--accent-blue);
}

.project-card h3 {
    color: var(--text-primary);
    margin-bottom: 1rem;
    font-size: 1.3rem;
}

.project-card p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.tech-tag {
    background: var(--secondary-bg);
    color: var(--accent-cyan);
    padding: 0.25rem 0.75rem;
    border-radius: 15px;
    font-size: 0.8rem;
    border: 1px solid var(--border-color);
}

/* Achievements Section */
.achievements-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 3rem;
    margin-top: 2rem;
}

.achievement-category {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow);
}

.achievement-category h3 {
    color: var(--accent-blue);
    margin-bottom: 2rem;
    font-size: 1.5rem;
    text-align: center;
}

.achievement-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
    padding: 1rem;
    background: var(--secondary-bg);
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.rank {
    background: var(--gradient-primary);
    color: var(--primary-bg);
    padding: 0.5rem 1rem;
    border-radius: 8px;
    font-weight: 700;
    font-size: 1.1rem;
    min-width: 60px;
    text-align: center;
}

.details h4 {
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

.details p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.cert-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
    padding: 1rem;
    background: var(--secondary-bg);
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.cert-item i {
    font-size: 2rem;
    color: var(--accent-blue);
}

.cert-details h4 {
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

.cert-details p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* Contact Section */
.contact {
    background: var(--secondary-bg);
}

.contact-container {
    max-width: 600px;
    margin: 0 auto;
}

.terminal-contact {
    background: var(--terminal-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow);
}

.contact-info {
    margin: 2rem 0;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
    padding: 1rem;
    background: var(--secondary-bg);
    border-radius: 8px;
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

.contact-item:hover {
    background: var(--card-bg);
    transform: translateX(5px);
}

.contact-item i {
    color: var(--accent-blue);
    font-size: 1.2rem;
    width: 20px;
}

.contact-item a {
    color: var(--text-primary);
    text-decoration: none;
    transition: color 0.3s ease;
}

.contact-item a:hover {
    color: var(--accent-blue);
}

/* Footer */
footer {
    background: var(--primary-bg);
    padding: 2rem 0;
    border-top: 1px solid var(--border-color);
    text-align: center;
}

footer p {
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

footer i {
    color: var(--accent-red);
}

/* Responsive Design */
@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--primary-bg);
        flex-direction: column;
        padding: 2rem;
        gap: 1rem;
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all 0.3s ease;
        border-top: 1px solid var(--border-color);
    }

    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }

    .hero-container {
        grid-template-columns: 1fr;
        gap: 2rem;
        text-align: center;
    }

    .live-terminal {
        max-width: 350px;
    }

    .terminal-content {
        font-size: 0.7rem;
        padding: 0.8rem;
    }

    .terminal-line {
        flex-direction: column;
        gap: 0.2rem;
    }

    .prompt {
        margin-bottom: 0.2rem;
    }

    .output {
        margin-left: 0;
        font-size: 0.65rem;
    }

    .terminal-output h1 {
        font-size: 2rem;
    }

    .section-title {
        font-size: 2rem;
    }

    .timeline::before {
        left: 20px;
    }

    .timeline-item {
        flex-direction: column;
        align-items: flex-start;
    }

    .timeline-item:nth-child(odd) {
        flex-direction: column;
    }

    .timeline-marker {
        left: 20px;
    }

    .timeline-content {
        width: 100%;
        margin-left: 3rem;
        margin-right: 0;
    }

    .education-item {
        flex-direction: column;
        align-items: center;
        text-align: center;
        gap: 1rem;
    }

    .education-icon {
        min-width: 50px;
        height: 50px;
        font-size: 1.2rem;
    }

    .education-details h3 {
        font-size: 1.2rem;
    }

    .university {
        font-size: 1rem;
    }

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

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

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

    .container {
        padding: 0 1rem;
    }

    section {
        padding: 4rem 0;
    }
}

@media (max-width: 480px) {
    .nav-container {
        padding: 1rem;
    }

    .hero {
        padding: 5rem 1rem 2rem;
    }

    .terminal-body {
        padding: 1rem;
        font-size: 0.8rem;
    }

    .terminal-output h1 {
        font-size: 1.8rem;
    }

    .section-title {
        font-size: 1.8rem;
        flex-direction: column;
        gap: 0.5rem;
    }

    .timeline-content {
        margin-left: 2rem;
        padding: 1.5rem;
    }

    .achievement-item,
    .cert-item {
        flex-direction: column;
        text-align: center;
    }

    .rank {
        min-width: auto;
    }
}

/* Smooth animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.timeline-item,
.skill-category,
.project-card,
.achievement-category {
    animation: fadeInUp 0.6s ease-out;
}

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

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

::-webkit-scrollbar-thumb {
    background: var(--accent-blue);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--accent-cyan);
}

/* Selection styling */
::selection {
    background: var(--accent-blue);
    color: var(--primary-bg);
}

::-moz-selection {
    background: var(--accent-blue);
    color: var(--primary-bg);
}

/* Loading Screen */
.loading-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--primary-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: opacity 0.5s ease;
}

.terminal-loading {
    background: var(--terminal-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow);
    width: 90%;
    max-width: 500px;
}

.loading-text {
    font-family: 'Fira Code', 'Consolas', 'Courier New', monospace;
    font-size: 0.9rem;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.loading-dots {
    color: var(--accent-cyan);
}

.loading-dots::after {
    content: '';
    animation: dots 1.5s infinite;
}

@keyframes dots {
    0%, 20% {
        content: '';
    }
    40% {
        content: '.';
    }
    60% {
        content: '..';
    }
    80%, 100% {
        content: '...';
    }
}

.progress-bar {
    width: 100%;
    height: 4px;
    background: var(--secondary-bg);
    border-radius: 2px;
    overflow: hidden;
    margin-top: 1rem;
}

.progress-fill {
    height: 100%;
    background: var(--gradient-primary);
    width: 0%;
    animation: progress 2s ease-in-out;
}

@keyframes progress {
    0% {
        width: 0%;
    }
    100% {
        width: 100%;
    }
}

/* Terminal Animations */
.blinking-cursor {
    animation: blink 1s infinite;
}

@keyframes blink {
    0%, 50% {
        opacity: 1;
    }
    51%, 100% {
        opacity: 0;
    }
}

@keyframes typing {
    0% {
        border-right: 2px solid var(--accent-blue);
    }
    50% {
        border-right: 2px solid transparent;
    }
    100% {
        border-right: 2px solid var(--accent-blue);
    }
}

@keyframes fadeInTerminal {
    0% {
        opacity: 0;
        transform: translateY(10px);
    }
    100% {
        opacity: 1;
        transform: translateY(0);
    }
}