/* ====================================================
   MODERN CYBERSECURITY PORTFOLIO - INSPIRED BY PROFESSIONAL DESIGNS
   ==================================================== */

/* ====================================================
   ROOT VARIABLES
   ==================================================== */
:root {
    /* Colors */
    --primary: #00FF8C;
    --secondary: #00D9FF;
    --accent: #FFD700;
    --bg-dark: #0a0a0a;
    --bg-darker: #121212;
    --bg-card: #1a1a1a;
    --text-primary: #ffffff;
    --text-secondary: #aaaaaa;
    --text-muted: #666666;
    --border: #333333;
    
    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
    --glow: 0 0 20px rgba(0, 255, 140, 0.3);
    
    /* Transitions */
    --transition: all 0.3s ease;
}

/* ====================================================
   RESET & BASE
   ==================================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    overflow-x: hidden;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: var(--bg-darker);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

::selection {
    background: var(--primary);
    color: var(--bg-dark);
}

/* ====================================================
   BOOT SCREEN
   ==================================================== */
.boot-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: #000;
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 1;
    transition: opacity 0.5s ease-out;
}

.boot-screen.fade-out {
    opacity: 0;
    pointer-events: none;
}

.boot-content {
    max-width: 800px;
    width: 90%;
    padding: 2rem;
    font-family: 'Courier New', monospace;
}

.ascii-art {
    color: var(--primary);
    font-size: 0.65rem;
    line-height: 1.2;
    text-align: center;
    text-shadow: 0 0 10px rgba(0, 255, 140, 0.5);
}

.boot-terminal p {
    margin-bottom: 0.8rem;
    font-size: 0.9rem;
    opacity: 0;
    animation: bootLine 0.3s forwards;
}

.boot-terminal p:nth-child(1) { animation-delay: 0.5s; }
.boot-terminal p:nth-child(2) { animation-delay: 1s; }
.boot-terminal p:nth-child(3) { animation-delay: 1.5s; }
.boot-terminal p:nth-child(4) { animation-delay: 2s; }
.boot-terminal p:nth-child(5) { animation-delay: 2.5s; }
.boot-terminal p:nth-child(6) { animation-delay: 3s; }

.boot-prompt {
    color: var(--secondary);
    font-weight: bold;
    margin-right: 0.5rem;
}

.boot-text {
    color: var(--text-secondary);
}

.boot-status {
    float: right;
    font-weight: bold;
}

.boot-ok { color: var(--primary); }
.boot-ready { color: var(--accent); animation: pulse 1s infinite; }

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

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

.boot-progress {
    margin: 2rem 0;
    height: 4px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 2px;
    overflow: hidden;
    opacity: 0;
    animation: bootLine 0.3s forwards 3.5s;
}

.boot-progress-bar {
    height: 100%;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    width: 0%;
    animation: progress 1.5s ease-out forwards 3.5s;
    box-shadow: 0 0 10px rgba(0, 255, 140, 0.5);
}

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

.boot-footer {
    text-align: center;
    color: var(--primary);
    font-size: 0.9rem;
    opacity: 0;
    animation: bootLine 0.3s forwards 4s, blink 1s infinite 5s;
}

@keyframes bootLine {
    to { opacity: 1; }
}

@keyframes blink {
    0%, 50% { opacity: 1; }
    51%, 100% { opacity: 0.3; }
}

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

/* ====================================================
   NAVIGATION
   ==================================================== */
.navbar {
    background: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border);
    padding: 1rem 0;
    transition: var(--transition);
}

.navbar-brand {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--text-primary) !important;
    font-family: 'Courier New', monospace;
}

.brand-symbol {
    color: var(--primary);
}

.highlight {
    color: var(--primary);
}

.nav-link {
    color: var(--text-secondary) !important;
    font-weight: 500;
    padding: 0.5rem 1rem !important;
    transition: var(--transition);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: var(--transition);
    transform: translateX(-50%);
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary) !important;
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 80%;
}

/* ====================================================
   HERO SECTION
   ==================================================== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    background: linear-gradient(135deg, #0a0a0a 0%, #121212 100%);
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: radial-gradient(var(--primary) 1px, transparent 1px);
    background-size: 50px 50px;
    opacity: 0.05;
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 2;
}

.hero-tag {
    color: var(--text-muted);
    font-size: 0.95rem;
    margin-bottom: 1rem;
    font-family: 'Courier New', monospace;
}

.hero-title {
    font-size: clamp(2.5rem, 7vw, 4.5rem);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 1.5rem;
}

.hero-subtitle {
    font-size: 1.15rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin-bottom: 2rem;
}

.hero-stats {
    display: flex;
    gap: 2rem;
    margin: 2rem 0;
}

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

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary);
    font-family: 'Courier New', monospace;
}

.stat-label {
    font-size: 0.9rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

/* ====================================================
   TERMINAL WINDOW
   ==================================================== */
.terminal-window {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.terminal-header {
    background: #1e1e1e;
    padding: 0.75rem 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    border-bottom: 1px solid var(--border);
}

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

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

.terminal-title {
    color: var(--text-secondary);
    font-size: 0.85rem;
    margin-left: auto;
    font-family: 'Courier New', monospace;
}

.terminal-body {
    padding: 1.5rem;
    font-family: 'Courier New', monospace;
    font-size: 0.95rem;
    min-height: 300px;
}

.terminal-body p {
    margin-bottom: 0.5rem;
}

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

.command {
    color: var(--secondary);
}

.output {
    color: var(--text-secondary);
}

.typing::after {
    content: '|';
    animation: blink 1s infinite;
}

/* ====================================================
   BUTTONS
   ==================================================== */
.btn {
    padding: 0.75rem 2rem;
    font-weight: 600;
    border-radius: 6px;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    transition: var(--transition);
    border: 2px solid transparent;
}

.btn-primary {
    background: var(--primary);
    color: var(--bg-dark);
}

.btn-primary:hover {
    background: transparent;
    border-color: var(--primary);
    color: var(--primary);
    box-shadow: var(--glow);
}

.btn-outline {
    background: transparent;
    border-color: var(--primary);
    color: var(--primary);
}

.btn-outline:hover {
    background: var(--primary);
    color: var(--bg-dark);
    box-shadow: var(--glow);
}

/* ====================================================
   SECTIONS
   ==================================================== */
.section {
    padding: 5rem 0;
    position: relative;
}

.bg-dark {
    background: var(--bg-dark);
}

.section-header {
    text-align: center;
    margin-bottom: 3rem;
}

.section-title {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.section-subtitle {
    color: var(--text-secondary);
    font-size: 1.1rem;
}

/* ====================================================
   ABOUT SECTION
   ==================================================== */
.about-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 2.5rem;
    box-shadow: var(--shadow-md);
}

.about-card p {
    margin-bottom: 1.5rem;
    color: var(--text-secondary);
    font-size: 1.05rem;
    line-height: 1.8;
}

.about-card strong {
    color: var(--primary);
}

.achievement-badge {
    display: inline-flex;
    align-items: center;
    background: rgba(0, 255, 140, 0.1);
    border: 1px solid var(--primary);
    border-radius: 8px;
    padding: 1rem 1.5rem;
    color: var(--primary);
    margin-top: 1rem;
}

/* ====================================================
   SKILLS SECTION
   ==================================================== */
.skill-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 2rem;
    height: 100%;
    transition: var(--transition);
}

.skill-card:hover {
    border-color: var(--primary);
    box-shadow: var(--glow);
    transform: translateY(-5px);
}

.skill-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.skill-header i {
    font-size: 2rem;
    color: var(--primary);
}

.skill-header h3 {
    font-size: 1.25rem;
    margin: 0;
}

.skills-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.skill-tag {
    background: rgba(0, 255, 140, 0.1);
    border: 1px solid var(--primary);
    padding: 0.5rem 1rem;
    border-radius: 6px;
    font-size: 0.9rem;
    color: var(--primary);
    transition: var(--transition);
}

.skill-tag:hover {
    background: var(--primary);
    color: var(--bg-dark);
}

/* ====================================================
   TIMELINE
   ==================================================== */
.timeline {
    position: relative;
    padding-left: 2rem;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
    width: 2px;
    background: linear-gradient(180deg, var(--primary), var(--secondary));
}

.timeline-item {
    position: relative;
    margin-bottom: 3rem;
    padding-left: 2rem;
}

.timeline-icon {
    position: absolute;
    left: -2.5rem;
    top: 0;
    width: 3rem;
    height: 3rem;
    background: var(--bg-card);
    border: 2px solid var(--primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    font-size: 1.2rem;
    box-shadow: var(--glow);
}

.timeline-content {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 2rem;
    transition: var(--transition);
}

.timeline-content:hover {
    border-color: var(--primary);
    box-shadow: var(--glow);
}

.timeline-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 1rem;
}

.timeline-header h3 {
    font-size: 1.5rem;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

.timeline-header h4 {
    font-size: 1.1rem;
    color: var(--primary);
    font-weight: 500;
}

.timeline-date {
    background: rgba(0, 255, 140, 0.1);
    border: 1px solid var(--primary);
    padding: 0.5rem 1rem;
    border-radius: 6px;
    font-size: 0.9rem;
    color: var(--primary);
    white-space: nowrap;
}

.timeline-list {
    list-style: none;
    margin: 1rem 0;
}

.timeline-list li {
    padding-left: 1.5rem;
    margin-bottom: 0.75rem;
    color: var(--text-secondary);
    position: relative;
}

.timeline-list li::before {
    content: '▹';
    position: absolute;
    left: 0;
    color: var(--primary);
}

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

.tag {
    background: rgba(0, 217, 255, 0.1);
    border: 1px solid var(--secondary);
    padding: 0.4rem 0.8rem;
    border-radius: 4px;
    font-size: 0.85rem;
    color: var(--secondary);
}

/* ====================================================
   PROJECT CARDS
   ==================================================== */
.project-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 2rem;
    height: 100%;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}

.project-card:hover {
    border-color: var(--primary);
    box-shadow: var(--glow);
    transform: translateY(-5px);
}

.project-icon {
    width: 4rem;
    height: 4rem;
    background: rgba(0, 255, 140, 0.1);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.project-icon i {
    font-size: 2rem;
    color: var(--primary);
}

.project-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.project-card p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    flex-grow: 1;
}

.project-link {
    color: var(--primary);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.project-link:hover {
    gap: 1rem;
}

/* ====================================================
   CERTIFICATION CARDS
   ==================================================== */
.cert-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 2rem;
    text-align: center;
    height: 100%;
    transition: var(--transition);
}

.cert-card:hover {
    border-color: var(--primary);
    box-shadow: var(--glow);
    transform: translateY(-5px);
}

.cert-icon {
    width: 4rem;
    height: 4rem;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
}

.cert-icon i {
    font-size: 2rem;
    color: var(--bg-dark);
}

.cert-card h3 {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
}

.cert-issuer {
    color: var(--primary);
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.cert-date {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.cert-desc {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* ====================================================
   CONTACT CARDS
   ==================================================== */
.contact-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 2rem;
    text-align: center;
    text-decoration: none;
    color: var(--text-primary);
    transition: var(--transition);
    display: block;
    height: 100%;
}

.contact-card:hover {
    border-color: var(--primary);
    box-shadow: var(--glow);
    transform: translateY(-5px);
    color: var(--text-primary);
}

.contact-icon {
    width: 4rem;
    height: 4rem;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
}

.contact-icon i {
    font-size: 2rem;
    color: var(--bg-dark);
}

.contact-card h3 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
}

.contact-card p {
    color: var(--text-secondary);
    margin: 0;
}

.location {
    color: var(--text-secondary);
    font-size: 1.1rem;
}

/* ====================================================
   FOOTER
   ==================================================== */
.footer {
    background: var(--bg-dark);
    border-top: 1px solid var(--border);
    padding: 2rem 0;
    text-align: center;
}

.footer p {
    color: var(--text-secondary);
    margin: 0.5rem 0;
}

/* ====================================================
   RESPONSIVE
   ==================================================== */
@media (max-width: 991px) {
    .hero {
        text-align: center;
    }
    
    .hero-subtitle {
        max-width: 100%;
    }
    
    .hero-stats {
        justify-content: center;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .terminal-window {
        margin-top: 3rem;
    }
    
    .timeline-header {
        flex-direction: column;
        gap: 1rem;
    }
    
    .timeline-date {
        align-self: flex-start;
    }
}

@media (max-width: 767px) {
    .section {
        padding: 3rem 0;
    }
    
    .hero-stats {
        flex-wrap: wrap;
        gap: 1rem;
    }
    
    .stat-number {
        font-size: 2rem;
    }
    
    .terminal-body {
        font-size: 0.85rem;
        padding: 1rem;
        min-height: 250px;
    }
    
    .timeline {
        padding-left: 1rem;
    }
    
    .timeline-item {
        padding-left: 1.5rem;
    }
    
    .timeline-icon {
        width: 2.5rem;
        height: 2.5rem;
        left: -2rem;
        font-size: 1rem;
    }
}

/* ====================================================
   UTILITY CLASSES
   ==================================================== */
.text-primary-color { color: var(--primary); }
.text-secondary-color { color: var(--secondary); }
.bg-primary { background: var(--primary); }
.bg-secondary { background: var(--secondary); }