/* ===== CSS Variables ===== */
:root {
    --primary: #0ea5e9;
    --primary-dark: #0284c7;
    --primary-light: #38bdf8;
    --primary-glow: rgba(14, 165, 233, 0.15);
    --accent: #8b5cf6;
    --accent-light: #a78bfa;
    --gradient: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-card: #1e293b;
    --bg-card-hover: #334155;
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --border: rgba(148, 163, 184, 0.1);
    --border-hover: rgba(14, 165, 233, 0.3);
    --glass: rgba(30, 41, 59, 0.8);
    --glass-border: rgba(148, 163, 184, 0.08);
    --radius: 16px;
    --radius-sm: 8px;
    --shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
    --shadow-glow: 0 0 30px rgba(14, 165, 233, 0.1);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --font-main: 'Poppins', -apple-system, sans-serif;
    --font-code: 'Fira Code', monospace;
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

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

a { text-decoration: none; color: inherit; }
ul { list-style: none; }
img { max-width: 100%; display: block; }

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ===== Preloader ===== */
.preloader {
    position: fixed;
    inset: 0;
    z-index: 9999;
    background: var(--bg-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: opacity 0.5s, visibility 0.5s;
}

.preloader.hidden {
    opacity: 0;
    visibility: hidden;
}

.loader {
    width: 48px;
    height: 48px;
    border: 3px solid var(--border);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* ===== Navigation ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(15, 23, 42, 0.8);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--glass-border);
    transition: var(--transition);
}

.navbar.scrolled {
    background: rgba(15, 23, 42, 0.95);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.nav-logo {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--text-primary);
    font-family: var(--font-code);
}

.logo-bracket {
    color: var(--primary);
}

.nav-links {
    display: flex;
    gap: 36px;
}

.nav-link {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
    transition: var(--transition);
    position: relative;
    padding: 4px 0;
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary-light);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient);
    border-radius: 2px;
    transition: var(--transition);
}

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

.nav-cta {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 20px;
    background: var(--gradient);
    color: white;
    border-radius: 8px;
    font-size: 0.85rem;
    font-weight: 600;
    transition: var(--transition);
}

.nav-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(14, 165, 233, 0.3);
}

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

.nav-toggle span {
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: var(--transition);
}

/* ===== Hero Section ===== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    padding: 100px 24px 60px;
}

.hero-particles {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse at 15% 50%, rgba(14, 165, 233, 0.08) 0%, transparent 50%),
        radial-gradient(ellipse at 85% 20%, rgba(139, 92, 246, 0.06) 0%, transparent 50%),
        radial-gradient(ellipse at 50% 90%, rgba(14, 165, 233, 0.04) 0%, transparent 40%);
    pointer-events: none;
}

.hero-content {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 60px;
    align-items: center;
    width: 100%;
}

.hero-left {
    position: relative;
    z-index: 1;
}

.hero-greeting {
    font-size: 1rem;
    color: var(--primary-light);
    font-weight: 500;
    margin-bottom: 8px;
    letter-spacing: 2px;
    text-transform: uppercase;
}

.hero-name {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 16px;
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--primary-light) 50%, var(--accent-light) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-typing-wrapper {
    font-size: 1.3rem;
    margin-bottom: 24px;
    min-height: 40px;
    display: flex;
    align-items: center;
}

.hero-typing-prefix {
    color: var(--text-secondary);
    font-weight: 400;
}

.hero-typed {
    color: var(--primary-light);
    font-weight: 600;
    font-family: var(--font-code);
}

.typing-cursor {
    color: var(--primary);
    animation: blink 0.8s infinite;
    font-weight: 300;
    margin-left: 2px;
}

@keyframes blink {
    0%, 50% { opacity: 1; }
    51%, 100% { opacity: 0; }
}

.hero-description {
    color: var(--text-secondary);
    font-size: 1rem;
    line-height: 1.8;
    margin-bottom: 32px;
    max-width: 520px;
}

.hero-cta {
    display: flex;
    gap: 16px;
    margin-bottom: 40px;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 28px;
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    font-weight: 600;
    transition: var(--transition);
    cursor: pointer;
    border: none;
    font-family: var(--font-main);
}

.btn-primary {
    background: var(--gradient);
    color: white;
    box-shadow: 0 4px 15px rgba(14, 165, 233, 0.25);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 30px rgba(14, 165, 233, 0.4);
}

.btn-glass {
    background: var(--glass);
    color: var(--text-primary);
    border: 1px solid var(--border);
    backdrop-filter: blur(10px);
}

.btn-glass:hover {
    border-color: var(--primary);
    transform: translateY(-3px);
    box-shadow: var(--shadow-glow);
}

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

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

.hero-socials a:hover {
    background: var(--primary);
    border-color: var(--primary);
    color: white;
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(14, 165, 233, 0.3);
}

/* Hero Right - Image */
.hero-right {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-image-wrapper {
    position: relative;
    width: 320px;
    height: 320px;
}

.hero-image-border {
    position: absolute;
    inset: -8px;
    border-radius: 50%;
    background: var(--gradient);
    opacity: 0.6;
    animation: pulse-ring 3s ease-in-out infinite;
}

@keyframes pulse-ring {
    0%, 100% { opacity: 0.4; transform: scale(1); }
    50% { opacity: 0.7; transform: scale(1.02); }
}

.hero-image {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    object-fit: cover;
    position: relative;
    z-index: 1;
    border: 4px solid var(--bg-primary);
}

.hero-stats-floating {
    position: absolute;
    inset: 0;
    pointer-events: none;
}

.floating-stat {
    position: absolute;
    background: var(--glass);
    backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    padding: 12px 18px;
    text-align: center;
    animation: float 4s ease-in-out infinite;
    animation-delay: var(--delay);
    pointer-events: auto;
}

.floating-stat:nth-child(1) { top: 10%; right: -40px; }
.floating-stat:nth-child(2) { bottom: 15%; right: -30px; }
.floating-stat:nth-child(3) { bottom: 5%; left: -20px; }

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-8px); }
}

.floating-stat-number {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-light);
}

.floating-stat p {
    font-size: 0.7rem;
    color: var(--text-muted);
    margin-top: 2px;
}

/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
}

.scroll-indicator span {
    font-size: 0.75rem;
    color: var(--text-muted);
    letter-spacing: 2px;
    text-transform: uppercase;
}

.scroll-line {
    width: 1px;
    height: 40px;
    background: var(--gradient);
    animation: scroll-down 2s ease-in-out infinite;
}

@keyframes scroll-down {
    0% { transform: scaleY(0); transform-origin: top; }
    50% { transform: scaleY(1); transform-origin: top; }
    51% { transform: scaleY(1); transform-origin: bottom; }
    100% { transform: scaleY(0); transform-origin: bottom; }
}

/* ===== Sections Common ===== */
.section {
    padding: 100px 0;
    position: relative;
}

.section-dark {
    background: var(--bg-secondary);
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-tag {
    display: inline-block;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--primary-light);
    text-transform: uppercase;
    letter-spacing: 3px;
    margin-bottom: 12px;
}

.section-title {
    font-size: clamp(2rem, 4vw, 2.8rem);
    font-weight: 700;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 12px;
}

.section-desc {
    color: var(--text-secondary);
    font-size: 1rem;
    max-width: 550px;
    margin: 0 auto;
}

/* ===== About Section ===== */
.about-content {
    display: grid;
    grid-template-columns: 1fr 1.3fr;
    gap: 50px;
    align-items: start;
}

.about-cards {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.about-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px 20px;
    text-align: center;
    transition: var(--transition);
}

.about-card:hover {
    border-color: var(--border-hover);
    transform: translateY(-4px);
    box-shadow: var(--shadow-glow);
}

.about-card i {
    font-size: 1.8rem;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 12px;
}

.about-card h3 {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 6px;
}

.about-card p {
    font-size: 0.8rem;
    color: var(--text-muted);
}

.about-right p {
    color: var(--text-secondary);
    margin-bottom: 16px;
    font-size: 0.95rem;
}

.about-right strong {
    color: var(--primary-light);
}

.about-certifications {
    margin-top: 24px;
    padding-top: 20px;
    border-top: 1px solid var(--border);
}

.about-certifications h4 {
    font-size: 0.95rem;
    color: var(--text-primary);
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.about-certifications h4 i {
    color: var(--primary);
}

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

.cert-tags span {
    padding: 6px 14px;
    background: var(--primary-glow);
    border: 1px solid rgba(14, 165, 233, 0.15);
    border-radius: 20px;
    font-size: 0.78rem;
    color: var(--primary-light);
    font-weight: 500;
}

/* ===== Skills Section ===== */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.skill-category {
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 28px;
    transition: var(--transition);
}

.skill-category:hover {
    border-color: var(--border-hover);
    box-shadow: var(--shadow-glow);
    transform: translateY(-4px);
}

.skill-category-header {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 20px;
}

.skill-icon-wrapper {
    width: 44px;
    height: 44px;
    background: var(--primary-glow);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    color: var(--primary-light);
}

.skill-category h3 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
}

.skill-items {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.skill-item {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.88rem;
    color: var(--text-secondary);
}

.skill-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--primary);
    flex-shrink: 0;
}

/* ===== Experience Section ===== */
.experience-timeline {
    max-width: 900px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 32px;
}

.exp-card {
    display: flex;
    gap: 24px;
}

.exp-card-left {
    display: flex;
    flex-direction: column;
    align-items: center;
    flex-shrink: 0;
}

.exp-company-logo {
    width: 50px;
    height: 50px;
    border-radius: 12px;
    overflow: hidden;
    background: white;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 6px;
    border: 1px solid var(--border);
    flex-shrink: 0;
}

.exp-company-logo img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.exp-timeline-line {
    flex: 1;
    width: 2px;
    background: linear-gradient(to bottom, var(--primary), transparent);
    margin-top: 12px;
    border-radius: 2px;
}

.exp-card-right {
    flex: 1;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 28px;
    transition: var(--transition);
}

.exp-card-right:hover {
    border-color: var(--border-hover);
    box-shadow: var(--shadow-glow);
}

.exp-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 16px;
    flex-wrap: wrap;
    gap: 12px;
}

.exp-header h3 {
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--text-primary);
}

.exp-company {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-top: 2px;
}

.exp-location {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: 4px;
}

.exp-location i {
    color: var(--primary);
    margin-right: 4px;
}

.exp-date {
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--primary-light);
    background: var(--primary-glow);
    padding: 4px 12px;
    border-radius: 20px;
    white-space: nowrap;
}

.exp-details {
    margin-bottom: 16px;
}

.exp-details li {
    position: relative;
    padding-left: 18px;
    margin-bottom: 10px;
    color: var(--text-secondary);
    font-size: 0.88rem;
    line-height: 1.6;
}

.exp-details li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 10px;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--primary);
}

.exp-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.exp-tags span {
    padding: 4px 12px;
    background: rgba(139, 92, 246, 0.08);
    border: 1px solid rgba(139, 92, 246, 0.15);
    border-radius: 20px;
    font-size: 0.75rem;
    color: var(--accent-light);
    font-weight: 500;
}

/* ===== Projects Section ===== */
.project-filters {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 48px;
}

.filter-btn {
    padding: 10px 24px;
    border-radius: 25px;
    border: 1px solid var(--border);
    background: transparent;
    color: var(--text-secondary);
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    font-family: var(--font-main);
}

.filter-btn:hover {
    border-color: var(--primary);
    color: var(--primary-light);
}

.filter-btn.active {
    background: var(--gradient);
    border-color: transparent;
    color: white;
    box-shadow: 0 4px 15px rgba(14, 165, 233, 0.25);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 24px;
}

.project-card {
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 28px;
    display: flex;
    flex-direction: column;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.project-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s ease;
}

.project-card:hover::before {
    transform: scaleX(1);
}

.project-card:hover {
    border-color: var(--border-hover);
    transform: translateY(-6px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3), var(--shadow-glow);
}

.project-card.hidden {
    display: none;
}

.project-card-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.project-folder {
    font-size: 2rem;
    color: var(--primary);
}

.project-links a {
    color: var(--text-muted);
    font-size: 1.3rem;
    transition: var(--transition);
}

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

.project-card h3 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 12px;
}

.project-card p {
    color: var(--text-secondary);
    font-size: 0.88rem;
    line-height: 1.7;
    flex: 1;
    margin-bottom: 18px;
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-top: auto;
}

.project-tech span {
    padding: 4px 10px;
    background: rgba(14, 165, 233, 0.06);
    border: 1px solid rgba(14, 165, 233, 0.12);
    border-radius: 5px;
    font-size: 0.75rem;
    color: var(--primary-light);
    font-weight: 500;
    font-family: var(--font-code);
}

/* ===== Contact Section ===== */
.contact-content {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 48px;
    align-items: start;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px 20px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

.contact-item:hover {
    border-color: var(--border-hover);
    transform: translateX(4px);
}

.contact-icon {
    width: 48px;
    height: 48px;
    background: var(--primary-glow);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-light);
    font-size: 1.1rem;
    flex-shrink: 0;
}

.contact-item h4 {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 2px;
}

.contact-item a,
.contact-item p {
    font-size: 0.88rem;
    color: var(--text-secondary);
    transition: var(--transition);
}

.contact-item a:hover {
    color: var(--primary-light);
}

.contact-card-large {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 40px;
    text-align: center;
}

.contact-card-large i {
    font-size: 2.5rem;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 16px;
}

.contact-card-large h3 {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 12px;
}

.contact-card-large p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 28px;
    max-width: 400px;
    margin-left: auto;
    margin-right: auto;
}

.contact-buttons {
    display: flex;
    gap: 12px;
    justify-content: center;
    flex-wrap: wrap;
}

/* ===== Footer ===== */
.footer {
    padding: 40px 0;
    border-top: 1px solid var(--border);
    background: var(--bg-primary);
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
}

.footer-logo {
    font-size: 1.2rem;
    font-weight: 700;
    font-family: var(--font-code);
    color: var(--text-primary);
}

.footer-links {
    display: flex;
    gap: 20px;
}

.footer-links a {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    color: var(--text-muted);
    transition: var(--transition);
}

.footer-links a:hover {
    background: var(--primary);
    border-color: var(--primary);
    color: white;
}

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

/* ===== Power BI Dashboards Section ===== */
.bi-showcase {
    display: flex;
    flex-direction: column;
    gap: 32px;
}

.bi-card {
    display: grid;
    grid-template-columns: 300px 1fr;
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    transition: var(--transition);
}

.bi-card:hover {
    border-color: var(--border-hover);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.3), var(--shadow-glow);
    transform: translateY(-4px);
}

.bi-card-preview {
    position: relative;
    background: linear-gradient(135deg, rgba(14, 165, 233, 0.08) 0%, rgba(139, 92, 246, 0.08) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 250px;
    border-right: 1px solid var(--border);
}

.bi-preview-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    color: var(--text-muted);
}

.bi-preview-placeholder i {
    font-size: 3rem;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.bi-preview-placeholder span {
    font-size: 0.82rem;
    font-weight: 500;
}

.bi-badge {
    position: absolute;
    top: 12px;
    right: 12px;
    padding: 4px 12px;
    background: var(--gradient);
    color: white;
    border-radius: 20px;
    font-size: 0.72rem;
    font-weight: 600;
}

.bi-github-link {
    position: absolute;
    bottom: 12px;
    right: 12px;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.15);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    font-size: 1.1rem;
    transition: var(--transition);
}

.bi-github-link:hover {
    background: var(--primary);
    border-color: var(--primary);
    color: white;
    transform: scale(1.1);
}

.bi-card-content {
    padding: 28px;
}

.bi-card-content h3 {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 10px;
}

.bi-card-content > p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 20px;
}

.bi-metrics {
    display: flex;
    gap: 24px;
    margin-bottom: 20px;
    padding: 16px 0;
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}

.bi-metric {
    text-align: center;
}

.bi-metric-value {
    display: block;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-light);
}

.bi-metric-label {
    font-size: 0.72rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.bi-features {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 18px;
}

.bi-features span {
    font-size: 0.8rem;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 6px;
}

.bi-features i {
    color: var(--accent-light);
    font-size: 0.7rem;
}

.bi-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.bi-tech span {
    padding: 4px 12px;
    background: rgba(139, 92, 246, 0.08);
    border: 1px solid rgba(139, 92, 246, 0.15);
    border-radius: 20px;
    font-size: 0.75rem;
    color: var(--accent-light);
    font-weight: 500;
}

/* ===== SQL Projects Section ===== */
.sql-showcase {
    display: flex;
    flex-direction: column;
    gap: 36px;
}

.sql-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    transition: var(--transition);
}

.sql-card:hover {
    border-color: var(--border-hover);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.3), var(--shadow-glow);
}

.sql-card-header {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 24px 28px;
    border-bottom: 1px solid var(--border);
    background: rgba(14, 165, 233, 0.03);
}

.sql-icon {
    width: 48px;
    height: 48px;
    background: var(--primary-glow);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-light);
    font-size: 1.2rem;
    flex-shrink: 0;
}

.sql-card-header h3 {
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--text-primary);
}

.sql-github-link {
    margin-left: auto;
    width: 38px;
    height: 38px;
    border-radius: 50%;
    background: rgba(14, 165, 233, 0.08);
    border: 1px solid rgba(14, 165, 233, 0.15);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    font-size: 1.1rem;
    transition: var(--transition);
    flex-shrink: 0;
}

.sql-github-link:hover {
    background: var(--primary);
    border-color: var(--primary);
    color: white;
    transform: scale(1.1);
}

.sql-subtitle {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-top: 2px;
}

.sql-card-body {
    padding: 28px;
}

.sql-description p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 20px;
}

.sql-code-block {
    background: #0d1117;
    border: 1px solid rgba(148, 163, 184, 0.1);
    border-radius: 10px;
    overflow: hidden;
    margin-bottom: 20px;
}

.sql-code-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 16px;
    background: rgba(148, 163, 184, 0.05);
    border-bottom: 1px solid rgba(148, 163, 184, 0.08);
}

.sql-code-header span {
    font-size: 0.78rem;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 6px;
}

.sql-lang {
    background: rgba(14, 165, 233, 0.1);
    padding: 2px 8px;
    border-radius: 4px;
    color: var(--primary-light) !important;
    font-weight: 500;
}

.sql-code-block pre {
    padding: 20px;
    overflow-x: auto;
    margin: 0;
}

.sql-code-block code {
    font-family: var(--font-code);
    font-size: 0.8rem;
    line-height: 1.7;
    color: #e6edf3;
    white-space: pre;
}

.sql-insights {
    background: rgba(139, 92, 246, 0.05);
    border: 1px solid rgba(139, 92, 246, 0.1);
    border-radius: 10px;
    padding: 20px;
    margin-bottom: 18px;
}

.sql-insights h4 {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--accent-light);
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.sql-insights h4 i {
    color: #fbbf24;
}

.sql-insights ul {
    padding-left: 0;
}

.sql-insights li {
    position: relative;
    padding-left: 18px;
    margin-bottom: 8px;
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

.sql-insights li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 9px;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--accent-light);
}

.sql-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.sql-tags span {
    padding: 4px 12px;
    background: rgba(14, 165, 233, 0.06);
    border: 1px solid rgba(14, 165, 233, 0.12);
    border-radius: 5px;
    font-size: 0.75rem;
    color: var(--primary-light);
    font-weight: 500;
    font-family: var(--font-code);
}

/* ===== Scroll Reveal ===== */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* ===== Responsive ===== */
@media (max-width: 1024px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 40px;
    }

    .hero-left {
        order: 2;
    }

    .hero-right {
        order: 1;
    }

    .hero-description {
        margin: 0 auto 32px;
    }

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

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

    .hero-image-wrapper {
        width: 250px;
        height: 250px;
    }

    .floating-stat:nth-child(1) { top: 5%; right: 0; }
    .floating-stat:nth-child(2) { bottom: 10%; right: 10px; }
    .floating-stat:nth-child(3) { bottom: 0%; left: 10px; }

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

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

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

    .bi-card {
        grid-template-columns: 1fr;
    }

    .bi-card-preview {
        min-height: 180px;
        border-right: none;
        border-bottom: 1px solid var(--border);
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        background: rgba(15, 23, 42, 0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        padding: 24px;
        gap: 16px;
        border-bottom: 1px solid var(--border);
    }

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

    .nav-toggle {
        display: flex;
    }

    .nav-cta {
        display: none;
    }

    .hero {
        padding: 100px 16px 60px;
    }

    .hero-image-wrapper {
        width: 200px;
        height: 200px;
    }

    .floating-stat {
        padding: 8px 12px;
    }

    .floating-stat-number {
        font-size: 1.2rem;
    }

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

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

    .exp-card {
        flex-direction: column;
        gap: 16px;
    }

    .exp-card-left {
        flex-direction: row;
        gap: 12px;
    }

    .exp-timeline-line {
        display: none;
    }

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

    .section {
        padding: 70px 0;
    }

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

    .bi-card {
        grid-template-columns: 1fr;
    }

    .bi-card-preview {
        min-height: 150px;
        border-right: none;
        border-bottom: 1px solid var(--border);
    }

    .bi-metrics {
        gap: 16px;
    }

    .sql-code-block pre {
        padding: 14px;
    }

    .sql-code-block code {
        font-size: 0.72rem;
    }
}

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

    .hero-typing-wrapper {
        font-size: 1rem;
        flex-wrap: wrap;
    }

    .hero-cta {
        flex-direction: column;
        align-items: center;
    }

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

    .project-filters {
        gap: 8px;
    }

    .filter-btn {
        padding: 8px 16px;
        font-size: 0.8rem;
    }

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