/* ===================================
   DAVID MORAGA — PORTFOLIO v2.0
   =================================== */

:root {
    --bg-primary: #080c18;
    --bg-secondary: #0d1225;
    --bg-card: rgba(255, 255, 255, 0.04);
    --bg-card-hover: rgba(255, 255, 255, 0.07);
    --accent-cyan: #00d4ff;
    --accent-violet: #7c3aed;
    --accent-cyan-dim: rgba(0, 212, 255, 0.12);
    --accent-violet-dim: rgba(124, 58, 237, 0.12);
    --text-primary: #e8edf5;
    --text-secondary: #8892a4;
    --text-muted: #4a5568;
    --border-subtle: rgba(255, 255, 255, 0.07);
    --border-accent: rgba(0, 212, 255, 0.3);
    --glow-cyan: 0 0 30px rgba(0, 212, 255, 0.25);
    --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.4);
    --font-sans: 'Inter', system-ui, sans-serif;
    --font-mono: 'Fira Code', 'Roboto Mono', monospace;
    --nav-height: 70px;
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

body {
    background: var(--bg-primary);
    color: var(--text-primary);
    font-family: var(--font-sans);
    line-height: 1.7;
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: inherit;
    transition: color var(--transition);
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    display: block;
}

::-webkit-scrollbar {
    width: 5px;
}

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

::-webkit-scrollbar-thumb {
    background: var(--accent-violet);
    border-radius: 3px;
}

::selection {
    background: rgba(0, 212, 255, 0.2);
    color: var(--accent-cyan);
}

/* ===== NAVBAR ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    height: var(--nav-height);
    background: transparent;
    transition: background var(--transition), backdrop-filter var(--transition), border-color var(--transition);
    border-bottom: 1px solid transparent;
}

.navbar.scrolled {
    background: rgba(8, 12, 24, 0.85);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom-color: var(--border-subtle);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-brand {
    font-family: var(--font-mono);
    font-size: 1.3rem;
    font-weight: 500;
    color: var(--text-primary);
}

.nav-brand .brand-bracket {
    color: var(--accent-cyan);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.nav-links .nav-link {
    font-family: var(--font-mono);
    font-size: 0.83rem;
    color: var(--text-secondary);
    padding: 0.5rem 0.9rem;
    border-radius: 6px;
    transition: color var(--transition), background var(--transition);
}

.nav-links .nav-link:hover {
    color: var(--accent-cyan);
    background: var(--accent-cyan-dim);
}

.nav-toggler {
    display: none;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1.4rem;
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 6px;
    transition: background var(--transition);
}

.nav-toggler:hover {
    background: var(--border-subtle);
}

/* ===== BUTTONS ===== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.65rem 1.4rem;
    border-radius: 8px;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition);
    border: none;
}

.btn-cv {
    border: 1px solid var(--accent-cyan);
    color: var(--accent-cyan);
    background: transparent;
    font-size: 0.8rem;
}

.btn-cv:hover {
    background: var(--accent-cyan-dim);
    box-shadow: var(--glow-cyan);
}

.btn-primary-glow {
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-violet));
    color: #fff;
    font-weight: 600;
    position: relative;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 212, 255, 0.25);
}

.btn-primary-glow::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, var(--accent-violet), var(--accent-cyan));
    opacity: 0;
    transition: opacity var(--transition);
}

.btn-primary-glow span,
.btn-primary-glow i {
    position: relative;
    z-index: 1;
}

.btn-primary-glow:hover::before {
    opacity: 1;
}

.btn-primary-glow:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(0, 212, 255, 0.4);
}

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

.btn-outline-glow:hover {
    background: var(--accent-cyan-dim);
    box-shadow: var(--glow-cyan);
    transform: translateY(-2px);
}

/* ===== MOBILE OVERLAY ===== */
.mobile-overlay {
    position: fixed;
    inset: 0;
    z-index: 999;
    background: rgba(8, 12, 24, 0.97);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 2rem;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition);
}

.mobile-overlay.open {
    opacity: 1;
    pointer-events: all;
}

.mobile-close {
    position: absolute;
    top: 1.5rem;
    right: 2rem;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 2.5rem;
    cursor: pointer;
}

.mobile-nav-links {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2rem;
}

.mobile-nav-links a {
    font-family: var(--font-mono);
    font-size: 1.5rem;
    color: var(--text-secondary);
    transition: color var(--transition);
}

.mobile-nav-links a:hover {
    color: var(--accent-cyan);
}

.mobile-nav-links .btn-cv {
    font-size: 1rem;
    margin-top: 1rem;
}

/* ===== SECTION SHARED ===== */
.section-container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 120px 2rem;
}

.section-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 4rem;
}

.section-label {
    font-family: var(--font-mono);
    font-size: 1rem;
    color: var(--accent-cyan);
    font-weight: 500;
}

.section-title {
    font-size: clamp(1.6rem, 3.5vw, 2.2rem);
    font-weight: 700;
    color: var(--text-primary);
    white-space: nowrap;
}

.section-line {
    height: 1px;
    flex: 1;
    background: var(--border-subtle);
    max-width: 300px;
}

/* ===== GLASS CARD ===== */
.glass-card {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: 16px;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    transition: border-color var(--transition), background var(--transition), transform var(--transition);
}

.glass-card:hover {
    border-color: var(--border-accent);
    background: var(--bg-card-hover);
    transform: translateY(-4px);
}

/* ===== ANIMATIONS ===== */
@keyframes fadeUp {
    from {
        opacity: 0;
        transform: translateY(30px)
    }

    to {
        opacity: 1;
        transform: translateY(0)
    }
}

@keyframes fadeLeft {
    from {
        opacity: 0;
        transform: translateX(50px)
    }

    to {
        opacity: 1;
        transform: translateX(0)
    }
}

@keyframes blobFloat {

    0%,
    100% {
        transform: translate(0, 0) scale(1)
    }

    33% {
        transform: translate(30px, -20px) scale(1.05)
    }

    66% {
        transform: translate(-20px, 15px) scale(0.95)
    }
}

@keyframes blink {

    0%,
    100% {
        opacity: 1
    }

    50% {
        opacity: 0
    }
}

@keyframes pulse {

    0%,
    100% {
        box-shadow: 0 0 12px var(--accent-cyan), 0 0 24px rgba(0, 212, 255, 0.3)
    }

    50% {
        box-shadow: 0 0 20px var(--accent-cyan), 0 0 40px rgba(0, 212, 255, 0.5)
    }
}

@keyframes scrollBounce {
    0% {
        opacity: 1;
        transform: translateX(-50%) translateY(0)
    }

    100% {
        opacity: 0;
        transform: translateX(-50%) translateY(16px)
    }
}

.fade-up {
    opacity: 0;
    animation: fadeUp 0.8s ease forwards;
}

.fade-left {
    opacity: 0;
    animation: fadeLeft 1s ease forwards;
}

.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}

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

.reveal-item {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

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

#hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    padding: var(--nav-height) 2rem 4rem;
}

/* Centered wrapper that holds content + code card side by side */
.hero-inner {
    position: relative;
    z-index: 1;
    width: 100%;
    max-width: 1200px;
    display: flex;
    align-items: center;
    gap: 3rem;
    justify-content: space-between;
}


.hero-bg {
    position: absolute;
    inset: 0;
    pointer-events: none;
    z-index: 0;
}

.hero-grid {
    position: absolute;
    inset: 0;
    background-image: linear-gradient(rgba(0, 212, 255, 0.04) 1px, transparent 1px), linear-gradient(90deg, rgba(0, 212, 255, 0.04) 1px, transparent 1px);
    background-size: 50px 50px;
    mask-image: radial-gradient(ellipse at center, black 20%, transparent 80%);
}

.blob {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    animation: blobFloat 10s ease-in-out infinite;
}

.blob-1 {
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(0, 212, 255, 0.12), transparent 70%);
    top: -100px;
    right: -100px;
}

.blob-2 {
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(124, 58, 237, 0.12), transparent 70%);
    bottom: 0;
    left: -80px;
    animation-delay: -5s;
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 600px;
    flex: 1;
    min-width: 0;
}


.hero-greeting {
    font-family: var(--font-mono);
    font-size: 1rem;
    color: var(--accent-cyan);
    margin-bottom: 0.5rem;
}

.hero-name {
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 800;
    line-height: 1.05;
    margin-bottom: 0.75rem;
    background: linear-gradient(135deg, #fff 40%, var(--accent-cyan));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-title {
    font-size: clamp(1.1rem, 2.5vw, 1.7rem);
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    font-family: var(--font-mono);
    min-height: 2.5rem;
}

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

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

.hero-desc {
    font-size: 1rem;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 2rem;
}

.hero-actions {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    margin-bottom: 2.5rem;
}

.hero-social {
    display: flex;
    gap: 1.2rem;
}

.hero-social a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 42px;
    height: 42px;
    border-radius: 50%;
    border: 1px solid var(--border-subtle);
    color: var(--text-secondary);
    font-size: 1.1rem;
    transition: all var(--transition);
}

.hero-social a:hover {
    color: var(--accent-cyan);
    border-color: var(--accent-cyan);
    background: var(--accent-cyan-dim);
    transform: translateY(-3px);
    box-shadow: var(--glow-cyan);
}

.hero-code-card {
    /* In-flow on large screens; hidden on medium/small */
    position: relative;
    flex-shrink: 0;
    z-index: 1;
    width: 310px;
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid var(--border-subtle);
    box-shadow: var(--shadow-card), 0 0 30px rgba(124, 58, 237, 0.25);
    background: rgba(13, 18, 37, 0.92);
    backdrop-filter: blur(16px);
}


.code-card-header {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.8rem 1rem;
    background: rgba(255, 255, 255, 0.04);
    border-bottom: 1px solid var(--border-subtle);
}

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

.dot.red {
    background: #ff5f57
}

.dot.yellow {
    background: #ffbd2e
}

.dot.green {
    background: #28c840
}

.code-filename {
    font-family: var(--font-mono);
    font-size: 0.78rem;
    color: var(--text-muted);
    margin-left: auto;
}

.code-snippet {
    padding: 1.2rem;
    font-family: var(--font-mono);
    font-size: 0.76rem;
    line-height: 1.8;
}

.c-keyword {
    color: #c792ea
}

.c-class,
.c-fn {
    color: #82aaff
}

.c-str {
    color: #c3e88d
}

.c-var {
    color: #f78c6c
}

.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    z-index: 1;
}

.scroll-indicator span {
    display: block;
    width: 26px;
    height: 42px;
    border: 2px solid var(--border-accent);
    border-radius: 13px;
    position: relative;
}

.scroll-indicator span::before {
    content: '';
    position: absolute;
    top: 6px;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 8px;
    background: var(--accent-cyan);
    border-radius: 2px;
    animation: scrollBounce 1.5s ease-in-out infinite;
}

/* ===== ABOUT ===== */
#about {
    background: var(--bg-secondary);
}

.about-grid {
    display: grid;
    grid-template-columns: 3fr 2fr;
    gap: 4rem;
    align-items: start;
}

.about-text p {
    color: var(--text-secondary);
    font-size: 1rem;
    margin-bottom: 1.2rem;
}

.about-text strong {
    color: var(--accent-cyan);
    font-weight: 600;
}

.skills-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem;
    margin-top: 1.5rem;
}

.skill-pill {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.4rem 0.9rem;
    background: var(--accent-cyan-dim);
    border: 1px solid rgba(0, 212, 255, 0.25);
    border-radius: 20px;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--accent-cyan);
    transition: all var(--transition);
}

.skill-pill:hover {
    background: rgba(0, 212, 255, 0.22);
    transform: translateY(-2px);
    box-shadow: var(--glow-cyan);
}

.about-image-wrapper {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.about-image-container {
    position: relative;
    border-radius: 16px;
    overflow: hidden;
    border: 1px solid var(--border-subtle);
}

.about-img {
    width: 100%;
    height: 260px;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.about-image-container:hover .about-img {
    transform: scale(1.04);
}

.image-glow {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.1), rgba(124, 58, 237, 0.1));
    pointer-events: none;
}

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

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: 12px;
    padding: 1.2rem;
    text-align: center;
    transition: border-color var(--transition);
}

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

.stat-number {
    display: block;
    font-size: 2rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-violet));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: 0.78rem;
    color: var(--text-muted);
    font-family: var(--font-mono);
}

/* ===== EXPERIENCE / TIMELINE ===== */
#experience {
    background: var(--bg-primary);
}

.timeline {
    position: relative;
    padding-left: 60px;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 20px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(to bottom, var(--accent-cyan), var(--accent-violet), transparent);
}

.timeline-item {
    position: relative;
    margin-bottom: 2.5rem;
}

.timeline-marker {
    position: absolute;
    left: -48px;
    top: 1.5rem;
}

.timeline-dot {
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--bg-primary);
    border: 2px solid var(--accent-cyan);
}

.timeline-dot.active-dot {
    background: var(--accent-cyan);
    animation: pulse 2s ease infinite;
}

.timeline-dot.future-dot {
    border-color: var(--text-muted);
    background: var(--bg-primary);
}

.timeline-card {
    padding: 1.8rem;
    position: relative;
}

.current-badge {
    position: absolute;
    top: -12px;
    left: 20px;
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-violet));
    color: #fff;
    font-family: var(--font-mono);
    font-size: 0.7rem;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-weight: 600;
}

.card-highlight {
    border-color: rgba(0, 212, 255, 0.2);
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.05), rgba(124, 58, 237, 0.05));
}

.timeline-card-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 1rem;
    margin-bottom: 1.2rem;
}

.job-title {
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.3rem;
}

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

.job-date {
    font-family: var(--font-mono);
    font-size: 0.78rem;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.company-logo-wrapper {
    width: 52px;
    height: 52px;
    border-radius: 10px;
    overflow: hidden;
    border: 1px solid var(--border-subtle);
    flex-shrink: 0;
    background: rgba(255, 255, 255, 0.06);
}

.company-logo {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.job-achievements {
    margin-bottom: 1.2rem;
    padding-left: 1.2rem;
}

.job-achievements li {
    color: var(--text-secondary);
    font-size: 0.93rem;
    margin-bottom: 0.6rem;
    list-style: disc;
}

.job-achievements li::marker {
    color: var(--accent-cyan);
}

.job-achievements strong {
    color: var(--text-primary);
    font-weight: 500;
}

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

.job-tags span {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    padding: 0.2rem 0.6rem;
    background: var(--accent-violet-dim);
    border: 1px solid rgba(124, 58, 237, 0.3);
    border-radius: 4px;
    color: #a78bfa;
}

.future-card {
    border-style: dashed;
    padding: 1.5rem;
    text-align: center;
}

.future-text {
    font-size: 1rem;
    color: var(--text-muted);
    font-weight: 400;
}

.future-text a {
    color: var(--accent-cyan);
    font-weight: 600;
}

.future-text a:hover {
    opacity: 0.8;
}

/* ===== PORTFOLIO ===== */
#portfolio {
    background: var(--bg-secondary);
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 2rem;
}

.project-card {
    overflow: hidden;
}

.project-img-wrapper {
    position: relative;
    overflow: hidden;
    height: 220px;
    border-radius: 12px 12px 0 0;
}

.project-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.project-card:hover .project-img {
    transform: scale(1.06);
}

.project-overlay {
    position: absolute;
    inset: 0;
    background: rgba(8, 12, 24, 0.75);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity var(--transition);
}

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

.overlay-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-violet));
    color: #fff;
    padding: 0.7rem 1.4rem;
    border-radius: 8px;
    font-family: var(--font-mono);
    font-size: 0.83rem;
    font-weight: 500;
}

.overlay-btn:hover {
    transform: scale(1.05);
}

.project-content {
    padding: 1.5rem;
}

.project-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 0.8rem;
}

.project-number {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    color: var(--accent-cyan);
}

.project-links a {
    color: var(--text-secondary);
    font-size: 1.1rem;
    padding: 0.3rem;
    transition: all var(--transition);
    display: inline-block;
}

.project-links a:hover {
    color: var(--accent-cyan);
    transform: translateY(-2px);
}

.project-title {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.8rem;
}

.project-desc {
    color: var(--text-secondary);
    font-size: 0.88rem;
    line-height: 1.7;
    margin-bottom: 1.2rem;
}

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

.project-tags span {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    padding: 0.2rem 0.6rem;
    background: var(--accent-cyan-dim);
    border: 1px solid rgba(0, 212, 255, 0.2);
    border-radius: 4px;
    color: var(--accent-cyan);
}

/* ===== CONTACT ===== */
#contact {
    background: var(--bg-primary);
}

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

.contact-desc {
    font-size: 1.03rem;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 2.5rem;
}

.contact-cta {
    font-size: 1rem;
    padding: 0.9rem 2rem;
    margin-bottom: 3rem;
}

.contact-socials {
    display: flex;
    justify-content: center;
    gap: 2rem;
    flex-wrap: wrap;
}

.social-link {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-secondary);
    font-size: 0.83rem;
    font-family: var(--font-mono);
    transition: color var(--transition), transform var(--transition);
}

.social-link i {
    font-size: 1.4rem;
    width: 52px;
    height: 52px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    border: 1px solid var(--border-subtle);
    background: var(--bg-card);
    transition: all var(--transition);
}

.social-link:hover {
    color: var(--accent-cyan);
    transform: translateY(-4px);
}

.social-link:hover i {
    border-color: var(--border-accent);
    background: var(--accent-cyan-dim);
    box-shadow: var(--glow-cyan);
}

/* ===== FOOTER ===== */
footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-subtle);
    padding: 2.5rem 2rem;
    text-align: center;
}

.footer-text {
    color: var(--text-muted);
    font-family: var(--font-mono);
    font-size: 0.83rem;
    margin-bottom: 0.4rem;
}

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

.footer-sep {
    margin: 0 0.5rem;
}

.footer-sub {
    color: var(--text-muted);
    font-size: 0.76rem;
    font-family: var(--font-mono);
}

/* ===== RESPONSIVE ===== */
@media (max-width:768px) {
    .nav-links {
        display: none;
    }

    .nav-toggler {
        display: flex;
    }

    .section-container {
        padding: 80px 1.5rem;
    }

    .section-line {
        display: none;
    }

    #hero {
        padding: 80px 1.5rem 4rem;
    }

    .hero-content {
        padding-left: 0;
        max-width: 100%;
    }

    .hero-code-card {
        display: none;
    }

    .hero-actions {
        flex-direction: column;
        align-items: flex-start;
    }

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

    .timeline {
        padding-left: 40px;
    }

    .timeline::before {
        left: 12px;
    }

    .timeline-marker {
        left: -32px;
    }

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

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

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

@media (max-width:480px) {
    .hero-name {
        font-size: 2.2rem;
    }

    .section-title {
        font-size: 1.5rem;
    }

    .contact-cta {
        width: 100%;
        justify-content: center;
    }
}

/* ===== LANGUAGE TOGGLE BUTTON ===== */
.btn-lang {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    background: none;
    border: 1px solid var(--border-subtle);
    color: var(--text-secondary);
    padding: 0.45rem 0.8rem;
    border-radius: 8px;
    cursor: pointer;
    font-family: var(--font-mono);
    font-size: 0.78rem;
    transition: all var(--transition);
    white-space: nowrap;
}

.btn-lang:hover {
    border-color: var(--accent-cyan);
    color: var(--accent-cyan);
    background: var(--accent-cyan-dim);
}

.btn-lang .lang-flag {
    font-size: 1rem;
    line-height: 1;
}

.btn-lang .lang-label {
    font-weight: 600;
    letter-spacing: 0.5px;
}

.mobile-lang {
    font-size: 1rem;
    padding: 0.6rem 1.2rem;
}

/* ===== HERO META LINE ===== */
.hero-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 1.2rem;
    margin-bottom: 1.5rem;
    color: var(--text-muted);
    font-size: 0.88rem;
    font-family: var(--font-mono);
}

.hero-meta i {
    color: var(--accent-cyan);
    margin-right: 0.35rem;
}

.hero-meta a {
    color: var(--text-muted);
    transition: color var(--transition);
}

.hero-meta a:hover {
    color: var(--accent-cyan);
}

/* ===== ABOUT EXTRAS ===== */
.about-extras {
    margin-top: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
}

.extra-item {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.extra-item i {
    color: var(--accent-cyan);
    width: 16px;
    flex-shrink: 0;
}

/* ===== CERTIFICATIONS ===== */
.cert-list {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: 12px;
    padding: 1rem 1.2rem;
}

.cert-title {
    font-family: var(--font-mono);
    font-size: 0.78rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 0.75rem;
}

.cert-item {
    display: flex;
    align-items: center;
    gap: 0.7rem;
    color: var(--text-secondary);
    font-size: 0.88rem;
    padding: 0.35rem 0;
    border-bottom: 1px solid var(--border-subtle);
}

.cert-item:last-child {
    border-bottom: none;
}

.cert-item i {
    color: var(--accent-cyan);
    font-size: 1rem;
}

/* ===== SKILLS SECTION ===== */
#skills {
    background: var(--bg-primary);
}

.skills-categories {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.skill-category {
    padding: 1.6rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.skill-cat-icon {
    width: 42px;
    height: 42px;
    border-radius: 10px;
    background: var(--accent-cyan-dim);
    border: 1px solid rgba(0, 212, 255, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-cyan);
    font-size: 1.1rem;
}

.skill-cat-icon.ai-icon {
    background: var(--accent-violet-dim);
    border-color: rgba(124, 58, 237, 0.3);
    color: #a78bfa;
}

.skill-cat-title {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-primary);
    font-family: var(--font-sans);
}

/* AI pills accent */
.skill-pill-ai {
    background: var(--accent-violet-dim) !important;
    border-color: rgba(124, 58, 237, 0.3) !important;
    color: #a78bfa !important;
}

.skill-pill-ai:hover {
    background: rgba(124, 58, 237, 0.25) !important;
    box-shadow: 0 0 20px rgba(124, 58, 237, 0.3) !important;
}

/* AI skills card spans wider */
.skill-ai {
    grid-column: span 2;
}

@media (max-width:900px) {
    .skills-categories {
        grid-template-columns: repeat(2, 1fr);
    }

    .skill-ai {
        grid-column: span 2;
    }
}

@media (max-width:560px) {
    .skills-categories {
        grid-template-columns: 1fr;
    }

    .skill-ai {
        grid-column: span 1;
    }
}