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

:root {
    --bg: #FAFAF9;
    --text: #1A1A1A;
    --text-secondary: #5C5C5C;
    --accent: #1A1A1A;
    --accent-light: #F0EFED;
    --border: #E5E4E1;
    --card-bg: #FFFFFF;
    --tag-bg: #F5F4F2;
        --highlight: #007BFF;
    --highlight-dark: #0056b3;
    --font-display: 'Fraunces', serif;
    --font-body: 'Sora', sans-serif;
    --nav-bg: rgba(250, 250, 249, 0.85);
}

body.dark-mode {
    --bg: #121212;
    --text: #FAFAF9;
    --text-secondary: #A3A3A3;
    --accent: #FAFAF9;
    --accent-light: #2A2A2A;
    --border: #333333;
    --card-bg: #1E1E1E;
    --tag-bg: #2A2A2A;
       --highlight: #3399FF;
    --highlight-dark: #007BFF;
    --nav-bg: rgba(18, 18, 18, 0.85);
}

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

body {
    font-family: var(--font-body);
    background: var(--bg);
    color: var(--text);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
    transition: background-color 0.3s ease, color 0.3s ease;
}

::selection { background: var(--highlight); color: #fff; }

nav {
    position: fixed; top: 0; left: 0; right: 0; z-index: 100;
    padding: 1.25rem 2.5rem;
    display: flex; justify-content: space-between; align-items: center;
    background: var(--nav-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid transparent;
    transition: border-color 0.3s, padding 0.3s, background-color 0.3s ease;
}

.theme-toggle {
    background: none; border: none; font-size: 1.25rem; cursor: pointer;
    padding: 0.3rem 0.5rem; color: var(--text); transition: transform 0.2s;
}
.theme-toggle:hover { transform: scale(1.1) rotate(10deg); }
nav.scrolled { border-bottom-color: var(--border); padding: 0.9rem 2.5rem; }

.nav-logo {
    font-family: var(--font-display);
    font-weight: 700; font-size: 1.35rem;
    text-decoration: none; color: var(--text);
    letter-spacing: -0.02em;
    display: flex; align-items: center; gap: 0.6rem;
}
.nav-logo img {
    width: 34px; height: 34px; border-radius: 50%;
    object-fit: cover; border: 2px solid var(--border);
    transition: border-color 0.2s;
}
.nav-logo:hover img { border-color: var(--highlight); }
.nav-logo span { color: var(--text-secondary); font-weight: 400; margin-left: -0.15rem; }

.nav-links { display: flex; gap: 2rem; align-items: center; }
.nav-links a {
    text-decoration: none; color: var(--text-secondary);
    font-size: 0.85rem; font-weight: 500; letter-spacing: 0.02em;
    transition: color 0.2s;
}
.nav-links a:hover { color: var(--text); }
.nav-links a.nav-active {
    color: var(--text);
    font-weight: 600;
}


#scroll-progress {
    position: fixed;
    top: 0; left: 0;
    height: 3px;
    width: 100%;
    transform: scaleX(0);
    transform-origin: left center;
    will-change: transform;
       background: linear-gradient(90deg, #007BFF, #00D4FF, #007BFF);
    background-size: 200% 100%;
    z-index: 10000;
    border-radius: 0 2px 2px 0;
    box-shadow: 0 0 8px rgba(138, 43, 226, 0.7);
    transition: transform 0.1s linear;
    animation: progressShimmer 2s linear infinite;
}
@keyframes progressShimmer {
    0% { background-position: 0% 0; }
    100% { background-position: 200% 0; }
}

.github-graph-strip {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 0.4rem;
    margin-top: 2rem;
    opacity: 1;
}
.github-graph-strip:hover img { opacity: 1; }
.github-graph-label {
    font-size: 0.72rem;
    font-weight: 500;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 0.4rem;
}
.github-graph-label span { color: var(--highlight); }
.github-graph-strip img {
    width: 100%;
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    filter: saturate(1.3);
    opacity: 0.75;
    transition: opacity 0.3s;
}

.nav-cta {
    background: var(--text) !important; color: var(--bg) !important;
    padding: 0.55rem 1.3rem !important; border-radius: 100px;
    transition: transform 0.2s, box-shadow 0.2s !important;
}
.nav-cta:hover { transform: translateY(-1px); box-shadow: 0 4px 16px rgba(0,0,0,0.15); }

.nav-toggle { display: none; background: none; border: none; cursor: pointer; padding: 0.5rem; }
.nav-toggle span { display: block; width: 22px; height: 2px; background: var(--text); margin: 5px 0; transition: 0.3s; }

.hero {
    min-height: 100vh; display: flex; align-items: center;
    padding: 8rem 2.5rem 4rem;
    max-width: 1200px; margin: 0 auto;
}
.hero-content { width: 100%; }

.hero-eyebrow {
    display: inline-flex; align-items: center; gap: 0.5rem;
    font-size: 0.8rem; font-weight: 500; color: var(--text-secondary);
    letter-spacing: 0.06em; text-transform: uppercase;
    margin-bottom: 1.5rem;
    opacity: 0; animation: fadeUp 0.6s ease forwards 0.2s;
}
.hero-eyebrow .dot {
    width: 8px; height: 8px; border-radius: 50%;
    background: var(--highlight);
    animation: pulse 2s ease infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.6; transform: scale(0.85); }
}

.hero h1 {
    font-family: var(--font-display);
    font-size: clamp(2.8rem, 6vw, 5rem);
    font-weight: 700; line-height: 1.08;
    letter-spacing: -0.035em;
    margin-bottom: 1.5rem;
    opacity: 0; animation: fadeUp 0.6s ease forwards 0.35s;
}
.hero h1 .highlight {
        background: linear-gradient(90deg, #4597ee);
    background-size: 300% 100%;
    -webkit-background-clip: text; background-clip: text;
    -webkit-text-fill-color: transparent;
    animation: shimmerGradient 4s ease infinite;
      
           filter: drop-shadow(0 0 18px rgba(0, 123, 255, 0.35));
}
#dynamic-word {
    display: inline-block;
    transition: opacity 0.4s ease-in-out;
}

@keyframes shimmerGradient {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

.hero-description {
    font-size: 1.1rem; color: var(--text-secondary);
    max-width: 580px; line-height: 1.85;
    margin-bottom: 2.5rem;
    opacity: 0; animation: fadeUp 0.6s ease forwards 0.5s;
    position: relative;
    padding-bottom: 1.5rem;
}
/* Decorative underline removed (.hero-description::after) */

.hero-actions {
    display: flex; gap: 1rem; align-items: center; flex-wrap: wrap;
    margin-bottom: 3rem;
    opacity: 0; animation: fadeUp 0.6s ease forwards 0.65s;
}
.btn-primary {
    display: inline-flex; align-items: center; gap: 0.5rem;
    background: var(--text); color: var(--bg);
    padding: 0.85rem 1.8rem; border-radius: 100px;
    text-decoration: none; font-size: 0.9rem; font-weight: 500;
    transition: transform 0.2s, box-shadow 0.2s;
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 6px 24px rgba(0,0,0,0.15); }
.btn-secondary {
    display: inline-flex; align-items: center; gap: 0.5rem;
    background: transparent; color: var(--text);
    padding: 0.85rem 1.8rem; border-radius: 100px;
    text-decoration: none; font-size: 0.9rem; font-weight: 500;
    border: 1.5px solid var(--border);
    transition: border-color 0.2s, background 0.2s;
}
.btn-secondary:hover { border-color: var(--highlight); background: var(--accent-light); }

.hero-stats {
    display: flex; gap: 3rem;
    opacity: 0; animation: fadeUp 0.6s ease forwards 0.8s;
}
.stat-value {
    font-family: var(--font-display); font-size: 2rem; font-weight: 700;
    letter-spacing: -0.02em;
}
.stat p { font-size: 0.8rem; color: var(--text-secondary); margin-top: 0.15rem; }

@keyframes fadeUp {
    from { opacity: 0; transform: translateY(24px); }
    to { opacity: 1; transform: translateY(0); }
}

section { padding: 6rem 2.5rem; max-width: 1200px; margin: 0 auto; }

.section-header {
    display: flex; justify-content: space-between; align-items: flex-end;
    margin-bottom: 3.5rem; flex-wrap: wrap; gap: 1rem;
}
.section-label {
    font-size: 0.75rem; font-weight: 600; letter-spacing: 0.1em;
    text-transform: uppercase; color: var(--text-secondary);
    margin-bottom: 0.5rem;
}
.section-title {
    font-family: var(--font-display);
    font-size: clamp(1.8rem, 3vw, 2.5rem);
    font-weight: 700; letter-spacing: -0.02em;
}
.section-headline {
    font-size: 0.95rem; color: var(--text-secondary);
    max-width: 600px; line-height: 1.7; margin-top: 0.5rem;
}


#about { border-top: 1px solid var(--border); }
.about-grid { display: grid; grid-template-columns: 1fr; gap: 3rem; }
.about-text p { color: var(--text-secondary); margin-bottom: 1.25rem; font-size: 1rem; }
.about-text p strong { color: var(--text); font-weight: 600; }

.skills-grid { display: flex; flex-wrap: wrap; gap: 0.6rem; margin-top: 2rem; }
.skill-tag {
    padding: 0.45rem 1rem; border-radius: 100px;
    background: var(--tag-bg); font-size: 0.8rem;
    font-weight: 500; color: var(--text);
    border: 1px solid var(--border);
    transition: background 0.2s, border-color 0.2s;
}
.skill-tag:hover { background: var(--highlight); border-color: var(--highlight-dark); color: #fff; }

.about-highlights { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.25rem; }
.highlight-card {
    padding: 1.5rem; border-radius: 16px;
    border: 1px solid var(--border); background: var(--card-bg);
    transition: border-color 0.2s, transform 0.2s;
}
.highlight-card:hover { border-color: var(--highlight); transform: translateY(-2px); }
.highlight-card .icon { font-size: 1.5rem; margin-bottom: 0.75rem; }
.highlight-card h4 { font-weight: 600; font-size: 0.95rem; margin-bottom: 0.35rem; }
.highlight-card p { font-size: 0.85rem; color: var(--text-secondary); line-height: 1.6; }


#experience { border-top: 1px solid var(--border); }
.exp-timeline { display: flex; flex-direction: column; gap: 1.5rem; }
.exp-card {
    display: grid; grid-template-columns: 200px 1fr; gap: 2.5rem;
    padding: 2rem; border-radius: 16px;
    border: 1px solid var(--border); background: var(--card-bg);
    transition: border-color 0.3s, transform 0.2s;
}
.exp-card:hover { border-color: var(--highlight); transform: translateY(-2px); }
.status-badge {
    display: inline-block; font-size: 0.65rem; font-weight: 600;
    padding: 0.2rem 0.6rem; border-radius: 100px;
    background: var(--tag-bg); color: var(--text);
    border: 1px solid var(--border); margin-bottom: 0.6rem;
    text-transform: uppercase; letter-spacing: 0.05em;
}
.exp-meta { font-size: 0.8rem; color: var(--text-secondary); padding-top: 0.25rem; }
.exp-meta .company {
    font-family: var(--font-display); font-weight: 600;
    font-size: 1.05rem; color: var(--text); display: block;
    margin-bottom: 0.25rem;
}
.exp-body h4 { font-weight: 600; font-size: 1rem; margin-bottom: 0.5rem; }
.exp-body p { font-size: 0.9rem; color: var(--text-secondary); line-height: 1.7; }
.exp-tags { display: flex; gap: 0.4rem; margin-top: 1rem; flex-wrap: wrap; }
.exp-tags span {
    padding: 0.3rem 0.75rem; border-radius: 100px;
    background: var(--tag-bg); font-size: 0.72rem; font-weight: 500;
}

#brands { border-top: 1px solid var(--border); }
.brands-marquee-wrapper {
    overflow: hidden;
    padding: 2rem 0;
    mask-image: linear-gradient(90deg, transparent, black 10%, black 90%, transparent);
    -webkit-mask-image: linear-gradient(90deg, transparent, black 10%, black 90%, transparent);
}
.brands-marquee {
    display: flex; gap: 3rem; align-items: center;
    animation: marquee 35s linear infinite;
    width: max-content;
}
@keyframes marquee {
    from { transform: translateX(0); }
    to { transform: translateX(-50%); }
}
.brand-item {
    font-family: var(--font-display); font-size: 1.2rem; font-weight: 600;
    color: var(--text); opacity: 0.4; white-space: nowrap;
    transition: opacity 0.3s;
    display: inline-flex; align-items: center; gap: 0.5rem;
}
.brand-tech-icon {
    width: 1.4rem;
    height: 1.4rem;
    min-width: 1.4rem;
    line-height: 1;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.brand-logo {
    display: inline-flex;
    width: 1.4rem;
    height: 1.4rem;
    min-width: 1.4rem;
    align-items: center;
    justify-content: center;
}
.brand-logo svg {
    width: 100%;
    height: 100%;
    display: block;
}
.brand-logo-render svg { border-radius: 50%; }
.brand-item:hover { opacity: 1; }
.brand-sep { color: var(--border); font-size: 1.2rem; }


#content { border-top: 1px solid var(--border); }
.content-showcase { width: 100%; }
.content-video-player {
    width: 100%; border-radius: 16px;
    border: 1px solid var(--border);
    display: block; background: #000;
}

#testimonial { border-top: 1px solid var(--border); }
.testimonial-card {
    border: 1px solid var(--border); border-radius: 20px;
    background: var(--card-bg); padding: 3rem;
    max-width: 800px;
    position: relative; 
}
.testimonial-quote { margin-bottom: 2rem; }
.quote-icon { margin-bottom: 1rem; display: block; }
.testimonial-quote p {
    font-family: var(--font-display); font-size: 1.1rem;
    font-weight: 400; line-height: 1.85; color: var(--text);
    font-style: italic;
}
.testimonial-author {
    display: flex; align-items: center; gap: 1rem;
    padding-top: 1.5rem; border-top: 1px solid var(--border);
}
.testimonial-avatar {
    width: 52px; height: 52px; border-radius: 50%;
    object-fit: cover; border: 2px solid var(--border); flex-shrink: 0;
}
.testimonial-author h4 { font-size: 0.95rem; font-weight: 600; margin-bottom: 0.1rem; }
.testimonial-author p { font-size: 0.8rem; color: var(--text-secondary); margin-bottom: 0.15rem; }
.testimonial-link {
    font-size: 0.75rem; font-weight: 600; color: var(--highlight);
    text-decoration: none; transition: opacity 0.2s;
}
.testimonial-link:hover { opacity: 0.7; }

#projects { border-top: 1px solid var(--border); }
.projects-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.5rem; }
.project-card {
    border: 1px solid var(--border); border-radius: 16px;
    background: var(--card-bg);
    transition: border-color 0.3s, transform 0.2s;
}
.project-card:hover { border-color: var(--highlight); transform: translateY(-3px); }
.project-info { padding: 1.75rem; }
.project-info h4 { font-family: var(--font-display); font-weight: 600; font-size: 1.15rem; margin-bottom: 0.5rem; }
.project-info p { font-size: 0.85rem; color: var(--text-secondary); line-height: 1.6; margin-bottom: 1rem; }
.project-tags { display: flex; flex-wrap: wrap; gap: 0.4rem; margin-bottom: 1.25rem; }
.project-tags span {
    padding: 0.3rem 0.75rem; border-radius: 100px;
    background: var(--tag-bg); font-size: 0.72rem; font-weight: 500;
    border: 1px solid var(--border);
}
.project-link {
    display: inline-flex; align-items: center; gap: 0.35rem;
    font-size: 0.82rem; font-weight: 600; color: var(--text);
    text-decoration: none; transition: gap 0.2s;
}
.project-link:hover { gap: 0.6rem; }


#writing { border-top: 1px solid var(--border); }
.writing-card {
    border: 1px solid var(--border); border-radius: 16px;
    background: var(--card-bg); overflow: hidden;
    transition: border-color 0.3s, transform 0.2s;
}
.writing-card:hover { border-color: var(--highlight); transform: translateY(-2px); }
.writing-content { padding: 2rem; }
.writing-platform {
    display: inline-flex; align-items: center; gap: 0.5rem;
    font-size: 0.75rem; font-weight: 600; letter-spacing: 0.04em;
    text-transform: uppercase; color: var(--text-secondary);
    margin-bottom: 1rem;
}
.writing-platform-dot {
    width: 8px; height: 8px; border-radius: 50%;
    background: var(--highlight);
}
.writing-content h3 {
    font-family: var(--font-display); font-size: 1.4rem;
    font-weight: 700; letter-spacing: -0.02em; margin-bottom: 0.75rem;
}
.writing-content > p {
    font-size: 0.9rem; color: var(--text-secondary);
    line-height: 1.7; margin-bottom: 1.25rem; max-width: 720px;
}
.writing-tags { display: flex; flex-wrap: wrap; gap: 0.4rem; margin-bottom: 1.5rem; }
.writing-tags span {
    padding: 0.3rem 0.75rem; border-radius: 100px;
    background: var(--tag-bg); font-size: 0.72rem; font-weight: 500;
    border: 1px solid var(--border);
}
.writing-footer {
    display: flex; justify-content: space-between; align-items: center;
    flex-wrap: wrap; gap: 1rem;
    padding-top: 1.25rem; border-top: 1px solid var(--border);
}
.writing-stats {
    display: flex; gap: 0.5rem; align-items: center;
    font-size: 0.8rem; color: var(--text-secondary); font-weight: 500;
}

#open-to-work {
    border-top: 1px solid var(--border);
}
.otw-container {
    background: var(--card-bg); color: var(--text);
    border-radius: 24px; padding: 4rem;
    position: relative; overflow: hidden;
    border: 1px solid var(--border);
}
.otw-container::before {
    content: ''; position: absolute; top: -100px; right: -100px;
    width: 400px; height: 400px; border-radius: 50%;
    background: var(--highlight); opacity: 0.08;
}
.otw-label {
    font-size: 0.75rem; font-weight: 600; letter-spacing: 0.1em;
    text-transform: uppercase; color: var(--text-secondary);
    margin-bottom: 1rem;
}
.otw-container h2 {
    font-family: var(--font-display);
    font-size: clamp(1.8rem, 3vw, 2.5rem);
    font-weight: 700; letter-spacing: -0.02em;
    margin-bottom: 1.5rem; color: var(--text);
}
.otw-roles { display: flex; flex-wrap: wrap; gap: 0.6rem; margin-bottom: 2rem; }
.otw-role {
    padding: 0.5rem 1.1rem; border-radius: 100px;
    border: 1px solid var(--border);
    font-size: 0.82rem; font-weight: 500; color: var(--text);
    transition: background 0.2s, color 0.2s;
}
.otw-role:hover { background: var(--highlight); color: #fff; border-color: var(--highlight); }
.otw-cta {
    display: inline-flex; align-items: center; gap: 0.5rem;
    background: var(--highlight); color: #fff;
    padding: 0.85rem 1.8rem; border-radius: 100px;
    text-decoration: none; font-size: 0.9rem; font-weight: 600;
    transition: transform 0.2s, box-shadow 0.2s;
}
.otw-cta:hover { transform: translateY(-2px); box-shadow: 0 6px 24px rgba(0, 123, 255, 0.4); }


body.dark-mode .otw-container {
    background: #1A1A1A;
    color: #FAFAF9;
    border-color: var(--border);
}
body.dark-mode .otw-label {
    color: rgba(255,255,255,0.5);
}
body.dark-mode .otw-container h2 {
    color: #FAFAF9;
}
body.dark-mode .otw-role {
    border-color: rgba(255,255,255,0.2);
    color: rgba(255,255,255,0.8);
}
body.dark-mode .otw-role:hover {
    background: var(--highlight); color: #fff; border-color: var(--highlight);
}

#contact { border-top: 1px solid var(--border); }
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; }
.contact-info h3 {
    font-family: var(--font-display); font-size: 1.5rem; font-weight: 600;
    margin-bottom: 1rem;
}
.contact-info p { color: var(--text-secondary); font-size: 0.95rem; margin-bottom: 2rem; }
.contact-email {
    display: inline-flex; align-items: center; gap: 0.5rem;
    font-size: 1.1rem; font-weight: 600; color: var(--text);
    text-decoration: none; padding-bottom: 2px;
    border-bottom: 2px solid var(--highlight);
    transition: border-color 0.2s;
}
.contact-email:hover { border-color: var(--highlight-dark); }

.socials-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 0.75rem; }

.contact-form-wrapper { display: flex; }
.contact-form-card {
    width: 100%; padding: 2rem;
    border: 1px solid var(--border); border-radius: 16px;
    background: var(--card-bg);
}
.contact-form-card h4 {
    font-family: var(--font-display); font-size: 1.1rem;
    font-weight: 600; margin-bottom: 1.5rem;
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.form-group { margin-bottom: 1rem; }
.form-group label {
    display: block; font-size: 0.8rem; font-weight: 600;
    color: var(--text); margin-bottom: 0.4rem;
}
.form-group input,
.form-group textarea {
    width: 100%; padding: 0.75rem 1rem;
    border: 1px solid var(--border); border-radius: 10px;
    background: var(--bg); font-family: var(--font-body);
    font-size: 0.85rem; color: var(--text);
    transition: border-color 0.2s;
    outline: none; resize: vertical;
}
.form-group input:focus,
.form-group textarea:focus { border-color: var(--highlight); }
.form-group input::placeholder,
.form-group textarea::placeholder { color: #aaa; }
.form-submit {
    display: inline-flex; align-items: center; gap: 0.5rem;
    background: var(--highlight); color: #fff;
    padding: 0.8rem 1.6rem; border-radius: 100px;
    border: none; cursor: pointer;
    font-family: var(--font-body); font-size: 0.9rem; font-weight: 600;
    transition: transform 0.2s, box-shadow 0.2s;
    margin-top: 0.5rem;
}
.form-submit:hover { transform: translateY(-2px); box-shadow: 0 6px 24px rgba(0, 123, 255, 0.4); }
.social-link {
    display: flex; align-items: center; gap: 0.75rem;
    padding: 1rem 1.25rem; border-radius: 12px;
    border: 1px solid var(--border); background: var(--card-bg);
    text-decoration: none; color: var(--text);
    transition: border-color 0.2s, transform 0.2s;
}
.social-link:hover { border-color: var(--highlight); transform: translateY(-2px); }
.social-link .s-icon { font-size: 1.2rem; }
.social-link .s-name { font-weight: 500; font-size: 0.85rem; }
.social-link .s-handle { font-size: 0.75rem; color: var(--text-secondary); }

footer {
    padding: 3rem 2.5rem;
    border-top: 1px solid var(--border);
    max-width: 1200px; margin: 0 auto;
    display: flex; justify-content: space-between; align-items: center;
}
footer p { font-size: 0.8rem; color: var(--text-secondary); }
footer a { color: var(--text); text-decoration: none; font-weight: 500; }


.reveal {
    opacity: 0; transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.visible { opacity: 1; transform: translateY(0); }


@media (max-width: 900px) {
    nav { padding: 1rem 1.5rem; }
    .nav-links { display: none; }
    .nav-links.open {
        display: flex; flex-direction: column;
        position: absolute; top: 100%; left: 0; right: 0;
        background: var(--bg); border-bottom: 1px solid var(--border);
        padding: 0;
        box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    }
    .nav-links.open a {
        padding: 1.25rem 1.5rem;
        width: 100%;
        border-bottom: 1px solid var(--border);
        font-size: 1rem;
    }
    .nav-links.open a:last-child {
        border-bottom: none;
    }
    .nav-links.open .nav-cta {
        margin: 1rem 1.5rem;
        width: calc(100% - 3rem) !important;
        text-align: center;
        border-radius: 8px;
    }
    .nav-toggle { display: block; padding: 0.5rem; }

    .hero { padding: 7rem 1.5rem 3rem; }
    section { padding: 4rem 1.5rem; }

    .about-grid { grid-template-columns: 1fr; gap: 2.5rem; }
    .about-highlights { grid-template-columns: 1fr; }
    .exp-card { grid-template-columns: 1fr; gap: 1rem; }
    .projects-grid { grid-template-columns: 1fr; }
    .contact-grid { grid-template-columns: 1fr; gap: 2.5rem; }
    .socials-grid { grid-template-columns: 1fr; }
    .form-row { grid-template-columns: 1fr; }
    .hero-stats { gap: 2rem; }
    .otw-container { padding: 2.5rem 1.5rem; }

    .github-graph-strip {
        width: 100%;
        overflow-x: auto;
        padding-bottom: 0.5rem;
    }
    .github-graph-strip img {
        min-width: 600px; 
    }

    footer { flex-direction: column; gap: 0.75rem; text-align: center; }
}

@media (max-width: 500px) {
    .hero-stats { flex-direction: column; gap: 1.25rem; }
}


.btn-primary, .btn-secondary, .nav-cta, .otw-cta, .form-submit {
    position: relative !important;
    overflow: hidden !important;
    z-index: 1 !important;
    background: transparent !important;
}

.btn-primary::after, .nav-cta::after, .otw-cta::after, .form-submit::after, .btn-secondary::after {
    content: ""; position: absolute; inset: 0; z-index: -2; border-radius: inherit; transition: background 0.3s;
}

.btn-primary::after, .nav-cta::after { background: var(--text); }
.btn-secondary::after { background: transparent; }
.otw-cta::after, .form-submit::after { background: var(--highlight-dark); }

.btn-secondary:hover { background: transparent !important; border-color: var(--highlight) !important; }

.btn-primary::before, .btn-secondary::before, .nav-cta::before, .otw-cta::before, .form-submit::before {
    content: ""; position: absolute; left: 50%; top: 100%;
    width: 400px; height: 400px; background: var(--highlight);
    border-radius: 40%; transform: translateX(-50%);
    z-index: -1; transition: top 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.btn-primary:hover::before, .btn-secondary:hover::before, .nav-cta:hover::before, .otw-cta:hover::before, .form-submit:hover::before {
    top: -100px; animation: liquid-wave 4s linear infinite;
}

@keyframes liquid-wave {
    0% { transform: translateX(-50%) rotate(0deg); }
    100% { transform: translateX(-50%) rotate(360deg); }
}

.btn-primary:hover, .btn-secondary:hover, .nav-cta:hover, .otw-cta:hover, .form-submit:hover {
    color: #fff !important;
}


.loader {
    position: fixed;
    top: 0; left: 0; width: 100%; height: 100vh;
    background: var(--bg);
    z-index: 9999;
    display: flex;
    justify-content: center;
    align-items: center;
    animation: loaderSlideOut 0.6s cubic-bezier(0.86, 0, 0.07, 1) 0.7s forwards;
}

.loader-text {
    font-family: var(--font-display);
    font-size: clamp(3rem, 7vw, 5rem);
    font-weight: 900;
    letter-spacing: -0.04em;
       background: linear-gradient(135deg, #ffffff 0%, #00D4FF 50%, #007BFF 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    opacity: 0;
    filter: drop-shadow(0 0 20px rgba(0, 123, 255, 0.4));
    animation: textPulse 1.1s cubic-bezier(0.4, 0, 0.2, 1) 0.1s forwards;
}

@keyframes textPulse {
    0% { opacity: 0; transform: scale(0.9) translateY(10px); filter: drop-shadow(0 0 0 rgba(138, 43, 226, 0)) blur(4px); }
    40% { opacity: 1; transform: scale(1) translateY(0); filter: drop-shadow(0 0 30px rgba(138, 43, 226, 0.6)) blur(0); }
    100% { opacity: 0; transform: scale(1.1) translateY(-10px); filter: drop-shadow(0 0 0 rgba(138, 43, 226, 0)) blur(4px); }
}

@keyframes loaderSlideOut {
    0% { transform: translateY(0); }
    100% { transform: translateY(-100%); pointer-events: none; }
}