/* ============================================
   CHUKWUEMEKA EZELIORA — TERMINAL PORTFOLIO
   Design: Matrix/Terminal Aesthetic
   Colors: Neon Green (#00FF41) on Black (#000)
   Font: JetBrains Mono (monospace)
   ============================================ */

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

:root {
    --neon: #00FF41;
    --neon-dim: #00cc33;
    --neon-glow: rgba(0, 255, 65, 0.15);
    --neon-glow-strong: rgba(0, 255, 65, 0.3);
    --bg: #000000;
    --bg-card: rgba(10, 15, 10, 0.75);
    --bg-card-hover: rgba(15, 25, 15, 0.85);
    --border: rgba(0, 255, 65, 0.12);
    --border-hover: rgba(0, 255, 65, 0.35);
    --text: #c0c0c0;
    --text-bright: #e0e0e0;
    --text-dim: #666;
    --font-mono: 'JetBrains Mono', 'Courier New', Courier, monospace;
    --glass-blur: 12px;
    --transition: 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-mono);
    background: var(--bg);
    color: var(--text);
    overflow-x: hidden;
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
}

/* === MATRIX CANVAS === */
#matrix-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: none;
}

/* === SCROLLBAR === */
::-webkit-scrollbar {
    width: 6px;
}
::-webkit-scrollbar-track {
    background: var(--bg);
}
::-webkit-scrollbar-thumb {
    background: var(--neon-dim);
    border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--neon);
}

/* === SELECTION === */
::selection {
    background: var(--neon);
    color: var(--bg);
}

/* === NAVIGATION === */
#navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    transition: var(--transition);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0.9rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo {
    text-decoration: none;
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--text-bright);
    display: flex;
    align-items: center;
    gap: 2px;
}

.prompt-symbol {
    color: var(--neon);
    margin-right: 6px;
    font-weight: 700;
}

.logo-name {
    color: var(--text-bright);
    font-weight: 700;
}

.logo-ext {
    color: var(--neon);
    font-weight: 400;
}

.nav-links {
    display: flex;
    gap: 2rem;
}

.nav-link {
    text-decoration: none;
    color: var(--text);
    font-size: 0.85rem;
    font-weight: 400;
    position: relative;
    transition: color var(--transition);
    letter-spacing: 0.5px;
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--neon);
    transition: width var(--transition);
}

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

/* Mobile Toggle */
.mobile-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

.mobile-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--neon);
    transition: var(--transition);
}

.mobile-menu {
    display: none;
    position: fixed;
    top: 60px;
    left: 0;
    right: 0;
    background: rgba(0, 0, 0, 0.95);
    backdrop-filter: blur(20px);
    padding: 1.5rem 2rem;
    flex-direction: column;
    gap: 1rem;
    z-index: 999;
    border-bottom: 1px solid var(--border);
}

.mobile-menu.active {
    display: flex;
}

.mobile-link {
    text-decoration: none;
    color: var(--text);
    font-size: 0.95rem;
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--border);
    transition: color var(--transition);
}

.mobile-link:hover {
    color: var(--neon);
}

/* === SECTIONS === */
.section {
    position: relative;
    z-index: 1;
    padding: 7rem 2rem;
}

.container {
    max-width: 1100px;
    margin: 0 auto;
}

.section-header {
    margin-bottom: 3.5rem;
}

.section-badge {
    display: inline-block;
    font-size: 0.8rem;
    color: var(--neon);
    letter-spacing: 2px;
    margin-bottom: 0.8rem;
    font-weight: 500;
}

.section-title {
    font-size: 2.2rem;
    font-weight: 700;
    color: var(--text-bright);
    letter-spacing: -0.5px;
}

/* === HERO SECTION === */
.hero-section {
    position: relative;
    z-index: 1;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 6rem 2rem 4rem;
    gap: 2.5rem;
}

/* Terminal Window */
.terminal-window {
    width: 100%;
    max-width: 900px;
    background: rgba(5, 10, 5, 0.85);
    border: 1px solid var(--border);
    border-radius: 10px;
    overflow: hidden;
    box-shadow:
        0 0 40px rgba(0, 255, 65, 0.05),
        0 20px 60px rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(var(--glass-blur));
}

.terminal-header {
    display: flex;
    align-items: center;
    padding: 0.75rem 1.2rem;
    background: rgba(20, 25, 20, 0.9);
    border-bottom: 1px solid var(--border);
}

.terminal-dots {
    display: flex;
    gap: 7px;
    margin-right: 1rem;
}

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

.dot.red { background: #ff5f57; }
.dot.yellow { background: #febc2e; }
.dot.green { background: #28c840; }

.terminal-title {
    flex: 1;
    text-align: center;
    font-size: 0.8rem;
    color: var(--text-dim);
}

.terminal-time {
    font-size: 0.8rem;
    color: var(--neon);
    font-weight: 500;
}

.terminal-body {
    padding: 1.5rem 2rem;
}

.terminal-content {
    display: flex;
    gap: 2rem;
    flex-wrap: wrap;
}

.neofetch-left {
    flex: 0 0 auto;
}

.ascii-art {
    color: var(--neon);
    font-size: 0.55rem;
    line-height: 1.15;
    text-shadow: 0 0 10px var(--neon-glow);
    margin-bottom: 0.5rem;
}

.ascii-icon pre {
    color: var(--neon-dim);
    font-size: 0.7rem;
    line-height: 1.2;
}

.neofetch-right {
    flex: 1;
    min-width: 250px;
}

.neofetch-right p {
    font-size: 0.82rem;
    line-height: 1.6;
    color: var(--text);
}

.nf-title {
    color: var(--neon) !important;
    font-weight: 600;
    font-size: 0.9rem !important;
}

.nf-title .at {
    color: var(--text-dim);
}

.nf-separator {
    color: var(--text-dim) !important;
    font-size: 0.7rem !important;
    margin-bottom: 0.3rem;
    opacity: 0.5;
}

.nf-label {
    color: var(--neon);
    font-weight: 600;
}

.color-blocks {
    display: flex;
    gap: 2px;
    margin-top: 0.8rem;
}

.cb {
    width: 20px;
    height: 20px;
    border-radius: 2px;
}

.terminal-prompt-section {
    margin-top: 1.5rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border);
}

.last-login, .help-text {
    font-size: 0.8rem;
    color: var(--text-dim);
    margin-bottom: 0.3rem;
}

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

.green-bold {
    color: var(--neon);
    font-weight: 600;
}

.prompt-line {
    font-size: 0.85rem;
    margin-top: 0.5rem;
}

.prompt-user {
    color: var(--neon);
    font-weight: 600;
}

.prompt-dir {
    color: #5dade2;
}

.cursor-blink {
    color: var(--neon);
    animation: blink 1s step-end infinite;
}

@keyframes blink {
    50% { opacity: 0; }
}

.terminal-status-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.5rem 1.5rem;
    background: rgba(15, 20, 15, 0.9);
    border-top: 1px solid var(--border);
    font-size: 0.7rem;
    color: var(--text-dim);
}

.status-left {
    display: flex;
    gap: 1.2rem;
    flex-wrap: wrap;
}

.status-item .green {
    font-weight: 500;
}

/* Hero Tagline */
.hero-tagline {
    text-align: center;
    font-size: 1rem;
    color: var(--text);
    max-width: 700px;
    line-height: 1.8;
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.2rem;
    max-width: 900px;
    width: 100%;
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 1.5rem 1rem;
    text-align: center;
    backdrop-filter: blur(var(--glass-blur));
    transition: all var(--transition);
    cursor: default;
    position: relative;
    overflow: hidden;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--neon), transparent);
    opacity: 0;
    transition: opacity var(--transition);
}

.stat-card:hover {
    border-color: var(--border-hover);
    background: var(--bg-card-hover);
    transform: translateY(-3px);
    box-shadow: 0 8px 30px var(--neon-glow);
}

.stat-card:hover::before {
    opacity: 1;
}

.stat-icon {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.stat-value {
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--text-bright);
    margin-bottom: 0.3rem;
}

.stat-label {
    font-size: 0.75rem;
    color: var(--text-dim);
    letter-spacing: 0.5px;
}

/* === ABOUT SECTION === */
.about-grid {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 1.5rem;
    align-items: start;
}

.about-card {
    padding: 2rem;
}

.about-text p {
    font-size: 0.9rem;
    line-height: 1.8;
}

.about-stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.about-stat-card {
    padding: 1.5rem;
    text-align: center;
}

.about-stat-icon {
    font-size: 1.4rem;
    margin-bottom: 0.6rem;
}

.about-stat-value {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--text-bright);
    margin-bottom: 0.2rem;
}

.about-stat-label {
    font-size: 0.75rem;
    color: var(--text-dim);
    letter-spacing: 0.5px;
}

/* === GLASS CARD === */
.glass-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 10px;
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    transition: all var(--transition);
}

.glass-card:hover {
    border-color: var(--border-hover);
    background: var(--bg-card-hover);
    box-shadow: 0 4px 25px var(--neon-glow);
}

/* === SKILLS GRID === */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.2rem;
}

.skill-card {
    padding: 1.5rem;
    transition: all var(--transition);
}

.skill-card:hover {
    transform: translateY(-3px);
}

.skill-header {
    display: flex;
    align-items: center;
    gap: 0.7rem;
    margin-bottom: 1rem;
}

.skill-icon {
    font-size: 1.2rem;
}

.skill-header h3 {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-bright);
}

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

.tag {
    display: inline-block;
    padding: 0.3rem 0.7rem;
    font-size: 0.72rem;
    color: var(--text);
    background: rgba(0, 255, 65, 0.05);
    border: 1px solid var(--border);
    border-radius: 4px;
    font-family: var(--font-mono);
    transition: all var(--transition);
}

.tag:hover {
    border-color: var(--neon-dim);
    color: var(--neon);
    background: rgba(0, 255, 65, 0.1);
}

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

.timeline::before {
    content: '';
    position: absolute;
    left: 5px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(180deg, var(--neon), var(--border));
}

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

.timeline-dot {
    position: absolute;
    left: -2rem;
    top: 1.5rem;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--neon);
    border: 2px solid var(--bg);
    box-shadow: 0 0 10px var(--neon-glow-strong);
    z-index: 1;
    transform: translateX(0px);
}

.timeline-card {
    padding: 1.5rem 2rem;
}

.timeline-card:hover {
    transform: translateX(5px);
}

.timeline-card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 1rem;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.timeline-role {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-bright);
    display: flex;
    align-items: center;
    gap: 0.7rem;
    flex-wrap: wrap;
}

.badge-current {
    display: inline-block;
    padding: 0.15rem 0.6rem;
    font-size: 0.65rem;
    font-weight: 600;
    color: var(--neon);
    background: rgba(0, 255, 65, 0.1);
    border: 1px solid var(--neon-dim);
    border-radius: 4px;
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

.timeline-company {
    font-size: 0.82rem;
    color: var(--text-dim);
    margin-top: 0.2rem;
}

.timeline-date {
    font-size: 0.8rem;
    color: var(--neon-dim);
    white-space: nowrap;
    font-weight: 500;
}

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

.timeline-details li {
    font-size: 0.82rem;
    color: var(--text);
    padding: 0.2rem 0;
    padding-left: 1rem;
    position: relative;
}

.timeline-details li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--neon-dim);
}

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

/* === PROJECTS GRID === */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
}

.project-card {
    padding: 2rem;
    transition: all var(--transition);
    position: relative;
    overflow: hidden;
}

.project-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 40px var(--neon-glow);
}

.project-card::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--neon), transparent);
    opacity: 0;
    transition: opacity var(--transition);
}

.project-card:hover::after {
    opacity: 1;
}

.project-status {
    margin-bottom: 1rem;
}

.project-badge {
    display: inline-block;
    padding: 0.2rem 0.8rem;
    font-size: 0.7rem;
    font-weight: 600;
    border-radius: 4px;
    letter-spacing: 0.5px;
}

.project-badge.production {
    color: var(--neon);
    background: rgba(0, 255, 65, 0.1);
    border: 1px solid var(--neon-dim);
}

.project-badge.active {
    color: #5dade2;
    background: rgba(93, 173, 226, 0.1);
    border: 1px solid rgba(93, 173, 226, 0.4);
}

.project-name {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-bright);
    margin-bottom: 0.8rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.project-link-icon {
    color: var(--neon-dim);
    font-size: 0.9rem;
    opacity: 0;
    transition: opacity var(--transition);
}

.project-card:hover .project-link-icon {
    opacity: 1;
}

.project-desc {
    font-size: 0.82rem;
    color: var(--text);
    line-height: 1.7;
    margin-bottom: 1.2rem;
}

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

/* === CONTACT === */
.contact-section {
    text-align: center;
    padding-bottom: 3rem;
}

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

.contact-title {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-bright);
    margin-top: 0.8rem;
    margin-bottom: 1rem;
    line-height: 1.3;
}

.contact-desc {
    font-size: 0.9rem;
    color: var(--text);
    margin-bottom: 2rem;
    line-height: 1.7;
}

.contact-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.9rem 2rem;
    font-size: 0.9rem;
    font-family: var(--font-mono);
    color: var(--bg);
    background: var(--neon);
    border: none;
    border-radius: 6px;
    text-decoration: none;
    font-weight: 600;
    transition: all var(--transition);
    cursor: pointer;
    box-shadow: 0 0 20px var(--neon-glow);
}

.contact-btn:hover {
    background: var(--neon-dim);
    transform: translateY(-2px);
    box-shadow: 0 5px 30px var(--neon-glow-strong);
}

.btn-icon {
    font-size: 1.1rem;
}

.social-links {
    display: flex;
    justify-content: center;
    gap: 1.2rem;
    margin-top: 2rem;
}

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 50px;
    height: 50px;
    border: 1px solid var(--border);
    border-radius: 10px;
    color: var(--text);
    text-decoration: none;
    transition: all var(--transition);
    background: var(--bg-card);
}

.social-link:hover {
    color: var(--neon);
    border-color: var(--neon-dim);
    background: rgba(0, 255, 65, 0.05);
    transform: translateY(-3px);
    box-shadow: 0 5px 20px var(--neon-glow);
}

/* === FOOTER === */
.footer {
    position: relative;
    z-index: 1;
    text-align: center;
    padding: 2rem;
    border-top: 1px solid var(--border);
    font-size: 0.8rem;
    color: var(--text-dim);
}

.footer-sub {
    margin-top: 0.3rem;
    font-size: 0.72rem;
}

/* === GLITCH HOVER EFFECT === */
[data-glitch]:hover {
    animation: glitch-skew 0.5s ease-in-out;
}

@keyframes glitch-skew {
    0%   { transform: skew(0deg); }
    10%  { transform: skew(-1deg, -0.5deg); }
    20%  { transform: skew(0.8deg, 0.3deg); }
    30%  { transform: skew(-0.5deg); }
    40%  { transform: skew(0.4deg, -0.2deg); }
    50%  { transform: skew(0deg); }
    100% { transform: skew(0deg); }
}

/* Enhanced Glitch for cards that also translate */
.stat-card[data-glitch]:hover,
.about-stat-card[data-glitch]:hover {
    animation: glitch-card 0.5s ease-in-out;
}

@keyframes glitch-card {
    0%   { transform: translateY(0) skew(0deg); }
    10%  { transform: translateY(-3px) skew(-1deg); }
    20%  { transform: translateY(-3px) skew(0.5deg); }
    30%  { transform: translateY(-3px) skew(-0.3deg); }
    50%  { transform: translateY(-3px) skew(0deg); }
    100% { transform: translateY(-3px) skew(0deg); }
}

.skill-card[data-glitch]:hover {
    animation: glitch-card 0.5s ease-in-out;
}

.timeline-card[data-glitch]:hover {
    animation: glitch-timeline 0.5s ease-in-out;
}

@keyframes glitch-timeline {
    0%   { transform: translateX(0) skew(0deg); }
    10%  { transform: translateX(5px) skew(-0.5deg); }
    20%  { transform: translateX(5px) skew(0.3deg); }
    30%  { transform: translateX(5px) skew(-0.2deg); }
    50%  { transform: translateX(5px) skew(0deg); }
    100% { transform: translateX(5px) skew(0deg); }
}

.project-card[data-glitch]:hover {
    animation: glitch-project 0.5s ease-in-out;
}

@keyframes glitch-project {
    0%   { transform: translateY(0) skew(0deg); }
    10%  { transform: translateY(-5px) skew(-0.8deg); }
    20%  { transform: translateY(-5px) skew(0.4deg); }
    30%  { transform: translateY(-5px) skew(-0.2deg); }
    50%  { transform: translateY(-5px) skew(0deg); }
    100% { transform: translateY(-5px) skew(0deg); }
}

/* === REVEAL ANIMATION (Staggered Fade-In) === */
.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

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

/* Stagger delays */
.reveal:nth-child(1) { transition-delay: 0s; }
.reveal:nth-child(2) { transition-delay: 0.15s; }
.reveal:nth-child(3) { transition-delay: 0.3s; }
.reveal:nth-child(4) { transition-delay: 0.45s; }

/* === RESPONSIVE === */
@media (max-width: 900px) {
    .nav-links {
        display: none;
    }

    .mobile-toggle {
        display: flex;
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }

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

    .skills-grid {
        grid-template-columns: repeat(2, 1fr);
    }

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

    .terminal-content {
        flex-direction: column;
    }

    .ascii-art {
        font-size: 0.42rem;
    }

    .timeline-card-header {
        flex-direction: column;
    }

    .section-title {
        font-size: 1.8rem;
    }

    .contact-title {
        font-size: 1.6rem;
    }
}

@media (max-width: 600px) {
    .stats-grid {
        grid-template-columns: 1fr 1fr;
        gap: 0.8rem;
    }

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

    .hero-section {
        padding: 5rem 1rem 3rem;
    }

    .section {
        padding: 5rem 1rem;
    }

    .terminal-body {
        padding: 1rem;
    }

    .neofetch-left {
        display: flex;
        flex-direction: column;
        align-items: center;
    }

    .ascii-icon {
        display: none;
    }

    .stat-card {
        padding: 1rem 0.8rem;
    }

    .stat-value {
        font-size: 1.3rem;
    }

    .status-left {
        flex-direction: column;
        gap: 0.3rem;
    }

    .status-right {
        display: none;
    }
}

@media (max-width: 400px) {
    .ascii-art {
        font-size: 0.35rem;
    }

    .neofetch-right p {
        font-size: 0.72rem;
    }
}

/* === SCANLINE EFFECT (subtle) === */
body::after {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 9999;
    background: repeating-linear-gradient(
        0deg,
        rgba(0, 0, 0, 0.03) 0px,
        rgba(0, 0, 0, 0.03) 1px,
        transparent 1px,
        transparent 3px
    );
}