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

:root {
    --bg-primary: #0a0a0f;
    --bg-secondary: #111118;
    --bg-card: #16161e;
    --bg-card-hover: #1c1c26;
    --text-primary: #e4e4e7;
    --text-secondary: #a1a1aa;
    --text-muted: #71717a;
    --accent: #22d3ee;
    --accent-dim: rgba(34, 211, 238, 0.15);
    --accent-glow: rgba(34, 211, 238, 0.3);
    --border: #27272a;
    --font-mono: 'JetBrains Mono', 'Fira Code', 'Consolas', monospace;
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --nav-height: 64px;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: var(--nav-height);
}

body {
    font-family: var(--font-sans);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
}

.container {
    max-width: 960px;
    margin: 0 auto;
    padding: 0 24px;
}

a {
    color: var(--accent);
    text-decoration: none;
    transition: opacity 0.2s;
}

a:hover {
    opacity: 0.8;
}

/* ===== Navigation ===== */
#navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--nav-height);
    background: rgba(10, 10, 15, 0.85);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
    z-index: 1000;
    transition: box-shadow 0.3s;
}

#navbar.scrolled {
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
}

.nav-container {
    max-width: 960px;
    margin: 0 auto;
    padding: 0 24px;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    font-family: var(--font-mono);
    font-size: 1rem;
    font-weight: 700;
    color: var(--accent);
}

.nav-logo:hover {
    opacity: 1;
    text-shadow: 0 0 12px var(--accent-glow);
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 8px;
}

.nav-links a {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--text-secondary);
    padding: 6px 12px;
    border-radius: 4px;
    transition: color 0.2s, background 0.2s;
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--accent);
    background: var(--accent-dim);
    opacity: 1;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}

.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: transform 0.3s, opacity 0.3s;
}

/* ===== Hero ===== */
#hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: var(--nav-height);
}

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

.hero-greeting {
    font-family: var(--font-mono);
    font-size: 0.95rem;
    color: var(--accent);
    margin-bottom: 12px;
}

#hero h1 {
    font-size: 3.5rem;
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 8px;
    letter-spacing: -0.02em;
}

#hero h2 {
    font-family: var(--font-mono);
    font-size: 1.15rem;
    font-weight: 400;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.hero-location {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-bottom: 28px;
}

.hero-links {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

/* ===== Buttons ===== */
.btn {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    padding: 10px 24px;
    border-radius: 6px;
    background: var(--accent);
    color: var(--bg-primary);
    font-weight: 600;
    transition: transform 0.2s, box-shadow 0.2s;
}

.btn:hover {
    opacity: 1;
    transform: translateY(-2px);
    box-shadow: 0 4px 16px var(--accent-glow);
}

.btn-outline {
    background: transparent;
    color: var(--accent);
    border: 1px solid var(--accent);
}

.btn-outline:hover {
    background: var(--accent-dim);
}

/* ===== Terminal ===== */
.hero-terminal {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
}

.terminal-header {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 16px;
    background: var(--bg-card);
    border-bottom: 1px solid var(--border);
}

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

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

.terminal-title {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-left: 8px;
}

.terminal-body {
    padding: 20px;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    line-height: 2;
}

.terminal-body .prompt {
    color: var(--accent);
    margin-right: 8px;
}

.terminal-body .terminal-output {
    color: var(--text-secondary);
    padding-left: 20px;
}

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

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

/* ===== Sections ===== */
section {
    padding: 96px 0;
}

.section-title {
    font-size: 1.75rem;
    font-weight: 600;
    margin-bottom: 40px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.section-title::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--border);
    max-width: 200px;
}

.section-number {
    font-family: var(--font-mono);
    font-size: 1rem;
    color: var(--accent);
    font-weight: 400;
}

/* ===== About ===== */
.about-content {
    display: grid;
    grid-template-columns: 240px 1fr;
    gap: 40px;
    align-items: start;
}

.about-photo {
    position: relative;
}

.about-photo img {
    width: 100%;
    border-radius: 10px;
    border: 2px solid var(--border);
    transition: border-color 0.3s;
}

.about-photo:hover img {
    border-color: var(--accent);
}

.about-photo::after {
    content: '';
    position: absolute;
    top: 12px;
    left: 12px;
    width: 100%;
    height: 100%;
    border: 2px solid var(--accent);
    border-radius: 10px;
    z-index: -1;
    transition: top 0.3s, left 0.3s;
}

.about-photo:hover::after {
    top: 8px;
    left: 8px;
}

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

.about-text p {
    margin-bottom: 16px;
}

.about-text p:last-child {
    margin-bottom: 0;
}

/* ===== Experience ===== */
.experience-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 32px;
    transition: border-color 0.3s;
}

.experience-card + .experience-card {
    margin-top: 20px;
}

.experience-card:hover {
    border-color: var(--accent);
}

.experience-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 20px;
    flex-wrap: wrap;
    gap: 12px;
}

.experience-header h3 {
    font-size: 1.25rem;
    font-weight: 600;
}

.experience-company {
    font-family: var(--font-mono);
    font-size: 0.9rem;
    color: var(--accent);
    margin-top: 4px;
}

.experience-meta {
    text-align: right;
    font-size: 0.85rem;
    color: var(--text-muted);
}

.experience-meta span {
    display: block;
}

.experience-list {
    list-style: none;
}

.experience-list li {
    position: relative;
    padding-left: 20px;
    margin-bottom: 10px;
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.experience-list li::before {
    content: '>';
    position: absolute;
    left: 0;
    color: var(--accent);
    font-family: var(--font-mono);
    font-weight: 700;
}

/* ===== Skills ===== */
.skills-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.skill-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 24px;
    transition: border-color 0.3s;
}

.skill-card:hover {
    border-color: var(--accent);
}

.skill-card h3 {
    font-family: var(--font-mono);
    font-size: 0.95rem;
    color: var(--text-primary);
    margin-bottom: 16px;
}

.card-icon {
    color: var(--accent);
    margin-right: 6px;
}

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

.skill-tags span {
    font-size: 0.8rem;
    padding: 4px 10px;
    background: var(--accent-dim);
    color: var(--accent);
    border-radius: 4px;
    font-family: var(--font-mono);
    white-space: nowrap;
}

/* ===== Education ===== */
.education-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 28px 32px;
    transition: border-color 0.3s;
}

.education-card:hover {
    border-color: var(--accent);
}

.education-card h3 {
    font-size: 1.15rem;
    font-weight: 600;
    margin-bottom: 4px;
}

.education-school {
    font-family: var(--font-mono);
    font-size: 0.9rem;
    color: var(--accent);
}

.education-date {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-top: 6px;
}

/* ===== Certifications ===== */
.cert-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.cert-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 24px;
    transition: border-color 0.3s;
}

.cert-card:hover {
    border-color: var(--accent);
}

.cert-card h3 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 6px;
}

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

.cert-link {
    margin-top: 24px;
    font-family: var(--font-mono);
    font-size: 0.9rem;
}

/* ===== Contact ===== */
#contact {
    text-align: center;
}

#contact .section-title {
    justify-content: center;
}

#contact .section-title::after {
    display: none;
}

.contact-text {
    color: var(--text-secondary);
    font-size: 1.05rem;
    max-width: 520px;
    margin: 0 auto 32px;
}

.contact-links {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

/* ===== Footer ===== */
footer {
    padding: 32px 0;
    border-top: 1px solid var(--border);
    text-align: center;
}

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

/* ===== Fade-in Animation ===== */
.fade-in {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
    #hero .container {
        grid-template-columns: 1fr;
        text-align: center;
    }

    #hero h1 {
        font-size: 2.5rem;
    }

    .hero-links {
        justify-content: center;
    }

    .hero-terminal {
        max-width: 400px;
        margin: 0 auto;
    }

    .experience-header {
        flex-direction: column;
    }

    .experience-meta {
        text-align: left;
    }

    .about-content {
        grid-template-columns: 1fr;
        justify-items: center;
    }

    .about-photo {
        max-width: 200px;
    }

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

    .nav-links {
        display: none;
        position: absolute;
        top: var(--nav-height);
        left: 0;
        right: 0;
        flex-direction: column;
        background: rgba(10, 10, 15, 0.95);
        backdrop-filter: blur(12px);
        border-bottom: 1px solid var(--border);
        padding: 16px 24px;
        gap: 4px;
    }

    .nav-links.open {
        display: flex;
    }

    .nav-toggle {
        display: flex;
    }

    section {
        padding: 64px 0;
    }
}

@media (max-width: 480px) {
    #hero h1 {
        font-size: 2rem;
    }

    .section-title {
        font-size: 1.4rem;
    }

    .experience-card,
    .skill-card,
    .education-card,
    .cert-card {
        padding: 20px;
    }
}

/* ===== Company Carousel ===== */
#companies {
    padding: 64px 0;
    background: var(--bg-secondary);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}

.companies-title {
    font-family: var(--font-mono);
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
    text-align: center;
    margin-bottom: 8px;
    letter-spacing: -0.02em;
}

.companies-subtitle {
    font-size: 1.1rem;
    color: var(--accent);
    text-align: center;
    margin-bottom: 48px;
    font-weight: 400;
}

.carousel-container {
    overflow: hidden;
    position: relative;
    width: 100%;
}

.carousel-track {
    display: flex;
    gap: 64px;
    animation: scroll-left 30s linear infinite;
}

.carousel-track:hover {
    animation-play-state: paused;
}

.company-logo {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    height: 80px;
}

.company-logo img {
    height: 60px;
    width: auto;
    object-fit: contain;
    filter: grayscale(100%) brightness(0.6) opacity(0.7);
    transition: filter 0.3s, transform 0.3s;
}

.company-logo:hover img {
    filter: grayscale(0%) brightness(1) opacity(1);
    transform: scale(1.05);
}

@keyframes scroll-left {
    0% {
        transform: translateX(0);
    }
    100% {
        transform: translateX(-50%);
    }
}

/* Component Stats */
.component-stats {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 32px;
    margin-top: 48px;
    padding: 32px 0;
    border-top: 1px solid var(--border);
}

.stat-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
}

.stat-number {
    font-family: var(--font-mono);
    font-size: 2rem;
    font-weight: 700;
    color: var(--accent);
    line-height: 1;
}

.stat-label {
    font-size: 0.8rem;
    color: var(--text-muted);
    text-align: center;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.stat-divider {
    width: 1px;
    height: 40px;
    background: var(--border);
}

/* Respect reduced motion preference */
@media (prefers-reduced-motion: reduce) {
    .carousel-track {
        animation: none;
        overflow-x: auto;
        scroll-behavior: smooth;
    }
}

@media (max-width: 768px) {
    .carousel-track {
        gap: 48px;
        animation-duration: 20s;
    }

    .company-logo {
        height: 60px;
    }

    .company-logo img {
        height: 45px;
    }

    .component-stats {
        flex-wrap: wrap;
        gap: 24px 16px;
    }

    .stat-divider {
        display: none;
    }

    .stat-item {
        flex: 0 0 calc(50% - 16px);
    }
}

@media (max-width: 480px) {
    .companies-title {
        font-size: 1.5rem;
    }

    .companies-subtitle {
        font-size: 0.95rem;
    }

    .stat-number {
        font-size: 1.5rem;
    }

    .stat-label {
        font-size: 0.7rem;
    }
}

/* ===== Hidden Elements & Show More Buttons ===== */
.hidden {
    display: none;
}

.show-more-btn {
    margin-top: 16px;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    padding: 6px 16px;
    background: transparent;
    color: var(--accent);
    border: 1px solid var(--accent);
    border-radius: 4px;
    cursor: pointer;
    transition: background 0.2s, transform 0.2s;
    width: 100%;
}

.show-more-btn:hover {
    background: var(--accent-dim);
    transform: translateY(-1px);
}

.show-more-btn:active {
    transform: translateY(0);
}

/* Add margin to experience card buttons */
.experience-card .show-more-btn {
    margin-top: 20px;
}