/* ============================================
   ACADEMIC PORTFOLIO – CSS DESIGN SYSTEM v2
   Dark-mode · Glassmorphism · Recruiter-focused
   ============================================ */

/* ---------- Google Fonts ---------- */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

/* ---------- Custom Properties ---------- */
:root {
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-muted: #111827;
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --accent: #3b82f6;
    --accent-hover: #2563eb;

    /* Glass */
    --glass-bg: rgba(30, 41, 59, 0.5);
    --glass-border: rgba(255, 255, 255, 0.07);
    --glass-blur: blur(14px);

    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --transition: 0.3s ease;

    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;

    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.55);

    --container-max: 1140px;
    --container-padding: 0 24px;
}

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

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-family);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    cursor: none;
    /* Custom cursor active */
}

a {
    color: inherit;
    text-decoration: none;
}

ul,
ol {
    list-style: none;
}

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

button {
    font-family: inherit;
    cursor: none;
    border: none;
    background: none;
}

/* ---------- Canvas ---------- */
#particle-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    pointer-events: none;
}

/* ============================================
   CUSTOM CURSOR
   ============================================ */
.cursor-dot {
    position: fixed;
    top: 0;
    left: 0;
    width: 8px;
    height: 8px;
    background-color: var(--accent);
    border-radius: 50%;
    pointer-events: none;
    z-index: 99999;
    transform: translate(-50%, -50%);
    transition: width 0.2s ease, height 0.2s ease, background-color 0.2s ease;
}

.cursor-ring {
    position: fixed;
    top: 0;
    left: 0;
    width: 34px;
    height: 34px;
    border: 1.5px solid rgba(59, 130, 246, 0.55);
    border-radius: 50%;
    pointer-events: none;
    z-index: 99998;
    transform: translate(-50%, -50%);
    transition: width 0.35s ease, height 0.35s ease, border-color 0.3s ease;
}

body:has(a:hover) .cursor-dot,
body:has(button:hover) .cursor-dot {
    width: 12px;
    height: 12px;
}

body:has(a:hover) .cursor-ring,
body:has(button:hover) .cursor-ring {
    width: 48px;
    height: 48px;
    border-color: rgba(59, 130, 246, 0.85);
}

@media (max-width: 768px) {

    .cursor-dot,
    .cursor-ring {
        display: none;
    }

    body,
    button {
        cursor: auto;
    }
}

/* ---------- Container ---------- */
.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: var(--container-padding);
}

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

/* ============================================
   HEADER / NAVBAR
   ============================================ */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 20px 0;
    transition: padding var(--transition), background-color var(--transition), box-shadow var(--transition);
    background-color: transparent;
}

.header.scrolled {
    padding: 10px 0;
    background: rgba(15, 23, 42, 0.75);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    box-shadow: 0 1px 28px rgba(0, 0, 0, 0.35);
}

.header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
}

.logo img {
    height: 50px;
    width: auto;
    display: block;
}

.footer-logo img {
    height: 80px;
}

.logo img,
.footer-logo img {
    transition: all 0.3s ease;
    cursor: pointer;
}

.logo img:hover,
.footer-logo img:hover {
    transform: scale(1.08);
    filter: drop-shadow(0 0 10px rgba(59, 130, 246, 0.6));
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-links a {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
    transition: color var(--transition);
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--accent);
    transition: width var(--transition);
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--text-primary);
}

.nav-links a:hover::after,
.nav-links a.active::after {
    width: 100%;
}

.nav-links .btn-resume {
    opacity: 1;
    color: #ffffff;
}

/* ---------- Resume Button ---------- */
.btn-resume {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 22px;
    background-color: var(--accent);
    color: #ffffff;
    font-size: 0.85rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    transition: transform var(--transition), box-shadow var(--transition), background-color var(--transition);
}

.btn-resume:hover {
    background-color: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 4px 16px rgba(59, 130, 246, 0.35);
}

/* ---------- Hamburger ---------- */
.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    z-index: 1100;
    padding: 4px;
}

.hamburger span {
    display: block;
    width: 24px;
    height: 2px;
    background-color: var(--text-primary);
    transition: transform var(--transition), opacity var(--transition);
}

.hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.hamburger.active span:nth-child(2) {
    opacity: 0;
}

.hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* ---------- Mobile Nav ---------- */
@media (max-width: 900px) {
    .hamburger {
        display: flex;
    }

    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 280px;
        height: 100vh;
        background: rgba(15, 23, 42, 0.95);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        flex-direction: column;
        align-items: flex-start;
        padding: 100px 32px 40px;
        gap: 24px;
        transition: right var(--transition);
        box-shadow: var(--shadow-lg);
        border-left: 1px solid var(--glass-border);
    }

    .nav-links.open {
        right: 0;
    }

    .nav-links a {
        font-size: 1.05rem;
    }
}

/* ---------- Overlay ---------- */
.nav-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.55);
    z-index: 999;
}

.nav-overlay.active {
    display: block;
}

/* ============================================
   BUTTONS
   ============================================ */
.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 28px;
    background-color: var(--accent);
    color: #ffffff;
    font-size: 0.95rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    transition: transform var(--transition), box-shadow var(--transition), background-color var(--transition);
}

.btn-primary:hover {
    background-color: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 24px rgba(59, 130, 246, 0.32);
}

.btn-secondary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 28px;
    border: 1px solid rgba(148, 163, 184, 0.25);
    color: var(--text-secondary);
    font-size: 0.95rem;
    font-weight: 500;
    border-radius: var(--radius-md);
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    transition: border-color var(--transition), color var(--transition), transform var(--transition);
}

.btn-secondary:hover {
    border-color: var(--accent);
    color: var(--accent);
    transform: translateY(-2px);
}

/* ============================================
   SECTION STYLES
   ============================================ */
.section {
    padding: 100px 0 80px;
}

.section-title {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.section-subtitle {
    font-size: 1rem;
    color: var(--text-muted);
    margin-bottom: 48px;
}

/* ---------- Page Header (inner pages) ---------- */
.page-header {
    padding-top: 140px;
    padding-bottom: 48px;
}

.page-header h1 {
    font-size: 2.6rem;
    font-weight: 800;
    margin-bottom: 10px;
}

.page-header .page-subtitle {
    font-size: 1rem;
    color: var(--text-muted);
}

/* ============================================
   HERO
   ============================================ */
.hero {
    min-height: 90vh;
    display: flex;
    align-items: center;
    padding-top: 100px;
}

.hero-content {
    max-width: 700px;
}

.hero-greeting {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--accent);
    margin-bottom: 14px;
    letter-spacing: 2px;
    text-transform: uppercase;
    display: flex;
    align-items: center;
    gap: 8px;
}

.hero-name {
    font-size: 3.4rem;
    font-weight: 800;
    line-height: 1.12;
    margin-bottom: 14px;
    color: var(--text-primary);
}

.hero-title {
    font-size: 1.3rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 22px;
}

.hero-summary {
    font-size: 1.05rem;
    color: var(--text-muted);
    line-height: 1.75;
    margin-bottom: 38px;
    max-width: 580px;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

/* ---------- Quick Stats ---------- */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.stat-card {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    padding: 28px 24px;
    text-align: center;
    transition: transform var(--transition), box-shadow var(--transition);
}

.stat-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 32px rgba(59, 130, 246, 0.12);
}

.stat-number {
    font-size: 2.4rem;
    font-weight: 800;
    color: var(--accent);
    line-height: 1;
    margin-bottom: 6px;
}

.stat-label {
    font-size: 0.82rem;
    color: var(--text-muted);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* ============================================
   COMPANY RECOMMENDATION SLIDER
   ============================================ */
.companies-section {
    padding: 60px 0;
    overflow: hidden;
}

.companies-heading {
    text-align: center;
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--text-muted);
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-bottom: 32px;
}

.slider-track-wrapper {
    overflow: hidden;
    position: relative;
}

.slider-track-wrapper::before,
.slider-track-wrapper::after {
    content: '';
    position: absolute;
    top: 0;
    width: 120px;
    height: 100%;
    z-index: 2;
    pointer-events: none;
}

.slider-track-wrapper::before {
    left: 0;
    background: linear-gradient(to right, var(--bg-primary), transparent);
}

.slider-track-wrapper::after {
    right: 0;
    background: linear-gradient(to left, var(--bg-primary), transparent);
}

.slider-track {
    display: flex;
    gap: 32px;
    animation: infiniteScroll 28s linear infinite;
    width: max-content;
}

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

@keyframes infiniteScroll {
    0% {
        transform: translateX(0);
    }

    100% {
        transform: translateX(-50%);
    }
}

.company-logo {
    flex-shrink: 0;
    width: 160px;
    height: 70px;
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: border-color var(--transition),
        transform var(--transition),
        box-shadow var(--transition);
}

.company-logo:hover {
    border-color: rgba(59, 130, 246, 0.35);
    transform: translateY(-4px);
    box-shadow: 0 8px 20px rgba(59, 130, 246, 0.15);
}

.company-logo img {
    max-width: 120px;
    max-height: 50px;
    object-fit: contain;
    filter: brightness(0) invert(1);
    opacity: 0.8;
    transition: all 0.3s ease;
}

.company-logo:hover img {
    filter: none;
    opacity: 1;
    transform: scale(1.05);
}

/* ============================================
   FEATURED PROJECT
   ============================================ */
.featured-project {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    padding: 44px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center;
}

.featured-project-info h3 {
    font-size: 1.55rem;
    font-weight: 700;
    margin-bottom: 12px;
}

.featured-project-info p {
    color: var(--text-secondary);
    line-height: 1.75;
    margin-bottom: 22px;
}

.featured-project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 26px;
}

.tag {
    padding: 6px 16px;
    background: rgba(59, 130, 246, 0.08);
    color: var(--accent);
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.5px;
    border-radius: 30px;
    border: 1px solid rgba(59, 130, 246, 0.25);
    transition: all 0.3s ease;
}

.tag:hover {
    background: var(--accent);
    color: #000;
}

.featured-project-image {
    border-radius: var(--radius-md);
    overflow: hidden;
    background: var(--bg-muted);
    border: 1px solid var(--glass-border);
    aspect-ratio: 16 / 9;
    display: flex;
    align-items: center;
    justify-content: center;
}

.featured-project-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.featured-project-image .placeholder {
    color: var(--text-muted);
    font-size: 0.85rem;
}

.featured-project {
    transition: transform 0.4s ease, box-shadow 0.4s ease;
}

.featured-project:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.35);
}

.featured-project-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
}

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

.featured-project {
    position: relative;
    overflow: hidden;
}

.featured-project::before {
    content: "";
    position: absolute;
    inset: 0;
    padding: 1px;
    border-radius: var(--radius-lg);
    background: linear-gradient(135deg,
            rgba(59, 130, 246, 0.4),
            transparent 40%,
            rgba(168, 85, 247, 0.4));
    -webkit-mask:
        linear-gradient(#000 0 0) content-box,
        linear-gradient(#000 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    pointer-events: none;
}

@media (max-width: 900px) {
    .featured-project {
        grid-template-columns: 1fr;
        padding: 28px;
        gap: 24px;
    }
}

/* ============================================
   WHAT I DO SECTION (Home)
   ============================================ */
.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.service-card {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    padding: 32px 28px;
    transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 36px rgba(59, 130, 246, 0.1);
    border-color: rgba(59, 130, 246, 0.25);
}

.service-icon {
    width: 52px;
    height: 52px;
    background: rgba(59, 130, 246, 0.12);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    color: var(--accent);
    margin-bottom: 18px;
}

.service-card h4 {
    font-size: 1.05rem;
    font-weight: 700;
    margin-bottom: 8px;
}

.service-card p {
    font-size: 0.88rem;
    color: var(--text-muted);
    line-height: 1.65;
}

/* ============================================
   PROJECTS
   ============================================ */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.project-card {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    padding: 28px;
    transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
    display: flex;
    flex-direction: column;
}

.project-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 40px rgba(59, 130, 246, 0.1);
    border-color: rgba(59, 130, 246, 0.2);
}

.project-card-image {
    width: 100%;
    aspect-ratio: 16 / 9;
    border-radius: var(--radius-sm);
    overflow: hidden;
    background: rgba(17, 24, 39, 0.7);
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--glass-border);
}

.project-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.project-card-image .placeholder {
    color: var(--text-muted);
    font-size: 0.82rem;
}

.project-card h3 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 8px;
}

.project-card .project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-bottom: 12px;
}

.project-card .project-description {
    font-size: 0.88rem;
    color: var(--text-secondary);
    line-height: 1.65;
    margin-bottom: 14px;
    flex: 1;
}

.project-card .project-features {
    margin-bottom: 16px;
}

.project-card .project-features li {
    font-size: 0.82rem;
    color: var(--text-secondary);
    padding: 3px 0;
    padding-left: 14px;
    position: relative;
    line-height: 1.5;
}

.project-card .project-features li::before {
    content: '▸';
    position: absolute;
    left: 0;
    color: var(--accent);
}

.project-card .project-links {
    display: flex;
    gap: 14px;
    margin-top: auto;
    padding-top: 14px;
    border-top: 1px solid var(--glass-border);
}

.project-card .project-links a {
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--accent);
    display: flex;
    align-items: center;
    gap: 5px;
    transition: opacity var(--transition);
}

.project-card .project-links a:hover {
    opacity: 0.75;
}

/* ============================================
   EDUCATION
   ============================================ */
.education-list {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.education-card {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    border-left: 3px solid var(--accent);
    border-radius: var(--radius-lg);
    padding: 32px;
    transition: transform var(--transition), box-shadow var(--transition);
}

.education-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.education-card h3 {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 6px;
}

.education-card .institution {
    font-size: 0.95rem;
    color: var(--accent);
    font-weight: 500;
    margin-bottom: 4px;
    display: flex;
    align-items: center;
    gap: 7px;
}

.education-card .year {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 7px;
}

.education-card .cgpa {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 16px;
}

.education-card .cgpa strong {
    color: var(--text-primary);
}

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

.coursework-tag {
    padding: 4px 12px;
    background: rgba(59, 130, 246, 0.08);
    color: var(--text-secondary);
    font-size: 0.76rem;
    font-weight: 500;
    border-radius: 20px;
    border: 1px solid var(--glass-border);
}

/* ============================================
   EXPERIENCE TIMELINE
   ============================================ */
.timeline {
    position: relative;
    padding-left: 44px;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 15px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(to bottom, var(--accent), rgba(59, 130, 246, 0.1));
}

.timeline-entry {
    position: relative;
    margin-bottom: 48px;
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    padding: 28px 32px;
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.timeline-entry.in-view {
    opacity: 1;
    transform: translateY(0);
}

.timeline-entry::before {
    content: '';
    position: absolute;
    left: -37px;
    top: 30px;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: var(--bg-secondary);
    border: 2px solid var(--text-muted);
    z-index: 1;
}

.timeline-entry:first-child::before {
    background: var(--accent);
    border-color: var(--accent);
    box-shadow: 0 0 0 5px rgba(59, 130, 246, 0.18);
}

.timeline-entry .role {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 4px;
}

.timeline-entry .org {
    font-size: 0.95rem;
    color: var(--accent);
    font-weight: 500;
    margin-bottom: 4px;
    display: flex;
    align-items: center;
    gap: 7px;
}

.timeline-entry .duration {
    font-size: 0.82rem;
    color: var(--text-muted);
    white-space: nowrap;
    margin-bottom: 4px;
    display: flex;
    align-items: center;
    gap: 7px;
}

.timeline-entry .location {
    font-size: 0.82rem;
    color: var(--text-muted);
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    gap: 7px;
}

.timeline-entry .impact-list li {
    font-size: 0.9rem;
    color: var(--text-secondary);
    padding: 4px 0 4px 18px;
    position: relative;
    line-height: 1.6;
}

.timeline-entry .impact-list li::before {
    content: '—';
    position: absolute;
    left: 0;
    color: var(--accent);
}

@media (max-width: 768px) {

    .timeline-entry::before {
        left: -25px;
    }

}

/* ============================================
   SKILLS
   ============================================ */
.skills-section {
    margin-bottom: 52px;
}

.skills-section-header {
    display: flex;
    align-items: flex-end;
    gap: 12px;
    margin-bottom: 22px;
}

.skills-section-header .section-icon {
    width: 40px;
    height: 40px;
    background: rgba(59, 130, 246, 0.12);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    color: var(--accent);
    flex-shrink: 0;
}

.skills-section h3 {
    font-size: 1.15rem;
    font-weight: 700;
}

.skills-section>.skill-desc {
    font-size: 0.88rem;
    color: var(--text-muted);
    margin-bottom: 24px;
}

/* Skill Bar */
.skill-bar-group {
    margin-bottom: 18px;
}

.skill-bar-label {
    display: flex;
    justify-content: space-between;
    margin-bottom: 8px;
}

.skill-bar-label span:first-child {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-primary);
}

.skill-bar-label span:last-child {
    font-size: 0.82rem;
    color: var(--text-muted);
}

.skill-bar-track {
    width: 100%;
    height: 7px;
    background: rgba(148, 163, 184, 0.1);
    border-radius: 4px;
    overflow: hidden;
}

.skill-bar-fill {
    height: 100%;
    width: 0;
    background: var(--accent);
    border-radius: 4px;
    transition: width 1.1s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Skills Tags */
.skills-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.skills-tags .skill-tag {
    padding: 9px 18px;
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    color: var(--text-secondary);
    font-size: 0.85rem;
    font-weight: 500;
    border-radius: var(--radius-sm);
    border: 1px solid var(--glass-border);
    transition: border-color var(--transition), color var(--transition);
}

.skills-tags .skill-tag:hover {
    border-color: rgba(59, 130, 246, 0.35);
    color: var(--text-primary);
}

/* Language */
.language-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.language-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 14px 20px;
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border-radius: var(--radius-sm);
    border: 1px solid var(--glass-border);
}

.language-item .lang-name {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 8px;
}

.language-item .lang-level {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--accent);
    padding: 4px 14px;
    background: rgba(59, 130, 246, 0.1);
    border-radius: 20px;
}

/* ============================================
   CONTACT
   ============================================ */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: start;
}

.contact-info-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.contact-info-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 20px;
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border-radius: var(--radius-md);
    border: 1px solid var(--glass-border);
    transition: transform var(--transition), border-color var(--transition);
}

.contact-info-item:hover {
    transform: translateX(4px);
    border-color: rgba(59, 130, 246, 0.25);
}

.contact-info-item .ci-icon {
    font-size: 1.1rem;
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(59, 130, 246, 0.12);
    border-radius: var(--radius-sm);
    color: var(--accent);
    flex-shrink: 0;
}

.contact-info-item .info-label {
    font-size: 0.76rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 2px;
}

.contact-info-item .info-value {
    font-size: 0.92rem;
    color: var(--text-primary);
    font-weight: 500;
}

.contact-info-item .info-value a {
    color: var(--text-primary);
    transition: color var(--transition);
}

.contact-info-item .info-value a:hover {
    color: var(--accent);
}

/* Contact Form */
.contact-form-card {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    padding: 36px;
}

.contact-form-card h3 {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 6px;
}

.contact-form-card p {
    font-size: 0.88rem;
    color: var(--text-muted);
    margin-bottom: 28px;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.form-group label {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    display: flex;
    align-items: center;
    gap: 6px;
}

.form-group input,
.form-group textarea {
    padding: 13px 16px;
    background: rgba(17, 24, 39, 0.6);
    border: 1px solid rgba(148, 163, 184, 0.12);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-family: var(--font-family);
    font-size: 0.92rem;
    transition: border-color var(--transition), box-shadow var(--transition);
    outline: none;
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.12);
}

.form-group textarea {
    min-height: 130px;
    resize: vertical;
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
    background: rgba(17, 24, 39, 0.8);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-top: 1px solid var(--glass-border);
    padding: 64px 0 32px;
    margin-top: 80px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.8fr 1fr 1fr;
    gap: 48px;
    margin-bottom: 48px;
}

.footer-brand .logo {
    font-size: 1.3rem;
    display: inline-block;
    margin-bottom: 14px;
}

.footer-brand p {
    font-size: 0.88rem;
    color: var(--text-muted);
    line-height: 1.7;
    max-width: 280px;
    margin-bottom: 22px;
}

.footer-socials {
    display: flex;
    gap: 12px;
}

.footer-social-link {
    width: 38px;
    height: 38px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    font-size: 0.95rem;
    transition: color var(--transition), border-color var(--transition), transform var(--transition);
}

.footer-social-link:hover {
    color: var(--accent);
    border-color: rgba(59, 130, 246, 0.35);
    transform: translateY(-3px);
}

.footer-col h5 {
    font-size: 0.88rem;
    font-weight: 700;
    color: var(--text-primary);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 18px;
}

.footer-col ul {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-col ul li a {
    font-size: 0.88rem;
    color: var(--text-muted);
    transition: color var(--transition);
    display: flex;
    align-items: center;
    gap: 7px;
}

.footer-col ul li a:hover {
    color: var(--accent);
}

.footer-bottom {
    border-top: 1px solid var(--glass-border);
    padding-top: 28px;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
}

.footer-bottom p {
    font-size: 0.82rem;
    color: var(--text-muted);
}

.footer-bottom a {
    color: var(--accent);
    transition: opacity var(--transition);
}

.footer-bottom a:hover {
    opacity: 0.75;
}

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

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

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1020px) {
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }

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

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

    .featured-project {
        grid-template-columns: 1fr;
    }

    .featured-project-image {
        order: -1;
    }

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

    .footer-brand {
        grid-column: 1 / -1;
    }
}

@media (max-width: 768px) {
    .hero-name {
        font-size: 2.4rem;
    }

    .hero-title {
        font-size: 1.1rem;
    }

    .section-title {
        font-size: 1.65rem;
    }

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

    .page-header h1 {
        font-size: 2rem;
    }

    .timeline {
        padding-left: 32px;
    }

    .timeline-entry {
        padding: 22px 24px;
    }
}

@media (max-width: 640px) {
    .projects-grid {
        grid-template-columns: 1fr;
    }

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

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

    .hero-name {
        font-size: 2rem;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }

    .hero-buttons {
        flex-direction: column;
    }

    .hero-buttons .btn-primary,
    .hero-buttons .btn-secondary {
        width: 100%;
        justify-content: center;
    }
}

/* ---- Certification Card Layout ---- */
.cert-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.cert-card {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    padding: 28px;
    display: flex;
    flex-direction: column;
    gap: 14px;
    transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}

.cert-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 40px rgba(59, 130, 246, 0.1);
    border-color: rgba(59, 130, 246, 0.25);
}

.cert-issuer-logo {
    width: 52px;
    height: 52px;
    border-radius: var(--radius-sm);
    background: rgba(59, 130, 246, 0.1);
    border: 1px solid var(--glass-border);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    color: var(--accent);
    flex-shrink: 0;
}

.cert-card-header {
    display: flex;
    align-items: flex-start;
    gap: 14px;
}

.cert-card-header-text h3 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.35;
    margin-bottom: 4px;
}

.cert-issuer {
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--accent);
    display: flex;
    align-items: center;
    gap: 5px;
}

.cert-meta {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.cert-meta-item {
    font-size: 0.8rem;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 7px;
}

.cert-meta-item i {
    color: var(--text-muted);
    width: 13px;
    text-align: center;
}

.cert-id {
    font-size: 0.78rem;
    color: var(--text-muted);
    background: rgba(148, 163, 184, 0.07);
    padding: 2px 10px;
    border-radius: 4px;
    font-family: monospace;
    word-break: break-all;
}

.cert-skills {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.cert-skill-tag {
    padding: 3px 12px;
    background: rgba(59, 130, 246, 0.08);
    color: var(--text-secondary);
    font-size: 0.73rem;
    font-weight: 500;
    border-radius: 20px;
    border: 1px solid rgba(59, 130, 246, 0.12);
}

.cert-footer {
    margin-top: auto;
    padding-top: 14px;
    border-top: 1px solid var(--glass-border);
    display: flex;
    gap: 14px;
}

.cert-link {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--accent);
    display: flex;
    align-items: center;
    gap: 5px;
    transition: opacity var(--transition);
}

.cert-link:hover {
    opacity: 0.7;
}

/* Search bar */
.cert-search-bar {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
    padding: 12px 20px;
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    transition: border-color var(--transition), box-shadow var(--transition);
}

.cert-search-bar:focus-within {
    border-color: rgba(59, 130, 246, 0.4);
    box-shadow: 0 0 20px rgba(59, 130, 246, 0.08);
}

.cert-search-bar i {
    color: var(--text-muted);
    font-size: 0.9rem;
    flex-shrink: 0;
}

.cert-search-bar:focus-within i {
    color: var(--accent);
}

.cert-search-bar input {
    flex: 1;
    background: none;
    border: none;
    outline: none;
    color: var(--text-primary);
    font-family: var(--font-family);
    font-size: 0.9rem;
    font-weight: 400;
}

.cert-search-bar input::placeholder {
    color: var(--text-muted);
    font-weight: 400;
}

/* No results message */
.cert-no-results {
    display: none;
    text-align: center;
    padding: 60px 20px;
    color: var(--text-muted);
    font-size: 1rem;
    grid-column: 1 / -1;
}

.cert-no-results i {
    font-size: 2.4rem;
    display: block;
    margin-bottom: 14px;
    color: var(--text-muted);
    opacity: 0.5;
}

/* Category filter bar */
.cert-filter-bar {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    margin-bottom: 36px;
}

.cert-filter-btn {
    padding: 9px 20px;
    border-radius: 30px;
    border: 1px solid var(--glass-border);
    background: var(--glass-bg);
    color: var(--text-muted);
    font-size: 0.82rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition);
    font-family: var(--font-family);
}

.cert-filter-btn:hover,
.cert-filter-btn.active {
    background: rgba(59, 130, 246, 0.15);
    border-color: rgba(59, 130, 246, 0.4);
    color: var(--accent);
}

/* Stats strip */
.cert-stats {
    display: flex;
    gap: 32px;
    flex-wrap: wrap;
    margin-bottom: 52px;
    padding: 20px 28px;
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
}

.cert-stats .cs-item {
    display: flex;
    align-items: center;
    gap: 12px;
}

.cert-stats .cs-num {
    font-size: 1.9rem;
    font-weight: 800;
    color: var(--accent);
    line-height: 1;
}

.cert-stats .cs-label {
    font-size: 0.8rem;
    color: var(--text-muted);
    font-weight: 500;
    line-height: 1.4;
}

@media (max-width: 768px) {

    .cert-stats {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 18px;
        padding: 20px;
        text-align: center;
    }

    .cert-stats>div[style] {
        display: none;
        /* hide vertical divider lines */
    }

    .cert-stats .cs-item {
        justify-content: center;
    }
}

@media (max-width: 768px) {
    .cert-stats {
        grid-template-columns: 1fr 1fr;
        gap: 10px;
        padding: 15px;
    }

    .cert-stats .cs-num {
        font-size: 1.6rem;
    }
}

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

@media (max-width: 640px) {
    .cert-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {

    .cert-filter-bar {
        justify-content: center;
        gap: 8px;
    }

    .cert-filter-btn {
        padding: 7px 14px;
        font-size: 0.75rem;
    }

}

@media (max-width: 640px) {

    .cert-card {
        padding: 20px;
    }

}