/* ============================================
   Md Sakibul Islam — Portfolio Stylesheet
   Premium Light 3D Design — Unique & Modern
   ============================================ */

/* ===== CSS Custom Properties ===== */
:root {
    /* Colors — Premium Light with Depth */
    --bg-primary: #f8fafc;
    --bg-secondary: #ffffff;
    --bg-tertiary: #f1f5f9;
    --bg-card: rgba(255, 255, 255, 0.92);
    --bg-glass: rgba(255, 255, 255, 0.65);
    --border-glass: rgba(99, 102, 241, 0.15);

    --text-primary: #0f172a;
    --text-secondary: #334155;
    --text-muted: #64748b;

    --accent-start: #6366f1;
    --accent-mid: #8b5cf6;
    --accent-end: #06b6d4;
    --gradient-primary: linear-gradient(135deg, #6366f1, #8b5cf6, #06b6d4);
    --gradient-hover: linear-gradient(135deg, #8b5cf6, #06b6d4);
    --gradient-text: linear-gradient(135deg, #6366f1, #8b5cf6, #06b6d4);
    --gradient-mesh: radial-gradient(ellipse at 20% 50%, rgba(99,102,241,0.08) 0%, transparent 50%),
                     radial-gradient(ellipse at 80% 20%, rgba(139,92,246,0.06) 0%, transparent 50%),
                     radial-gradient(ellipse at 60% 80%, rgba(6,182,212,0.06) 0%, transparent 50%);

    --glow-primary: rgba(99, 102, 241, 0.25);
    --glow-secondary: rgba(139, 92, 246, 0.2);
    --glow-cyan: rgba(6, 182, 212, 0.15);

    --shadow-soft: 0 4px 24px rgba(0, 0, 0, 0.04);
    --shadow-card: 0 8px 32px rgba(99, 102, 241, 0.08), 0 2px 8px rgba(0, 0, 0, 0.04);
    --shadow-card-hover: 0 20px 60px rgba(99, 102, 241, 0.15), 0 8px 24px rgba(0, 0, 0, 0.06);
    --shadow-3d: 0 25px 50px -12px rgba(0, 0, 0, 0.1);

    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-heading: 'Space Grotesk', 'Inter', sans-serif;

    /* Spacing */
    --section-padding: 120px 0;
    --container-width: 1200px;
    --container-padding: 0 24px;

    /* Transitions */
    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-bounce: 0.6s cubic-bezier(0.68, -0.55, 0.265, 1.55);

    /* Border Radius */
    --radius-sm: 12px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --radius-xl: 32px;
    --radius-full: 50%;
}

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

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

body {
    font-family: var(--font-primary);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.7;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    background-image: var(--gradient-mesh);
    background-attachment: fixed;
}

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

::-webkit-scrollbar {
    width: 6px;
}
::-webkit-scrollbar-track {
    background: #f1f5f9;
}
::-webkit-scrollbar-thumb {
    background: linear-gradient(to bottom, var(--accent-start), var(--accent-mid));
    border-radius: 3px;
}

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

ul, ol {
    list-style: none;
}

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

/* ===== Particle Canvas ===== */
#particleCanvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: none;
}

/* ===== Cursor Glow ===== */
.cursor-glow {
    position: fixed;
    width: 500px;
    height: 500px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(99, 102, 241, 0.06) 0%, transparent 70%);
    pointer-events: none;
    z-index: 1;
    transform: translate(-50%, -50%);
    transition: opacity 0.3s;
}

/* ===== Utility ===== */
.gradient-text {
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ===== Glass Card — 3D Morphism ===== */
.glass-card {
    background: var(--bg-card);
    backdrop-filter: blur(20px) saturate(1.8);
    -webkit-backdrop-filter: blur(20px) saturate(1.8);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-card);
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
    transform-style: preserve-3d;
}

.glass-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(99,102,241,0.3), transparent);
}

.glass-card:hover {
    box-shadow: var(--shadow-card-hover);
    transform: translateY(-6px) rotateX(2deg);
    border-color: rgba(99, 102, 241, 0.3);
}

/* ===== Reveal Animation ===== */
.reveal {
    opacity: 0;
    transform: translateY(40px) scale(0.97);
    transition: all 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}

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

/* ===== Navbar ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 20px 0;
    transition: all var(--transition-normal);
}

.navbar.scrolled {
    padding: 12px 0;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(24px) saturate(1.8);
    -webkit-backdrop-filter: blur(24px) saturate(1.8);
    border-bottom: 1px solid rgba(99, 102, 241, 0.08);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.04);
}

.nav-container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: var(--container-padding);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.5px;
}

.logo-accent {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 800;
}

.nav-links {
    display: flex;
    gap: 8px;
}

.nav-link {
    padding: 8px 18px;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-muted);
    border-radius: var(--radius-sm);
    transition: all var(--transition-normal);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 4px;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    border-radius: 2px;
    transition: all var(--transition-normal);
    transform: translateX(-50%);
}

.nav-link:hover,
.nav-link.active {
    color: var(--accent-start);
}

.nav-link.active::after,
.nav-link:hover::after {
    width: 60%;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 16px;
}

.nav-cta {
    padding: 10px 24px;
    background: var(--gradient-primary);
    color: #fff;
    font-size: 0.9rem;
    font-weight: 600;
    border-radius: var(--radius-sm);
    box-shadow: 0 4px 15px var(--glow-primary);
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.nav-cta::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left 0.5s;
}

.nav-cta:hover::before {
    left: 100%;
}

.nav-cta:hover {
    transform: translateY(-2px) scale(1.03);
    box-shadow: 0 8px 25px var(--glow-primary);
}

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

.hamburger span {
    width: 24px;
    height: 2.5px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: var(--transition-normal);
}

.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); }

/* ===== Hero Section ===== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    padding: 120px 0 60px;
}

.hero-bg-shapes {
    position: absolute;
    inset: 0;
    z-index: 0;
    overflow: hidden;
}

.hero-shape {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.5;
}

.hero-shape.shape-1 {
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(99,102,241,0.15), transparent);
    top: -10%;
    right: -10%;
    animation: float3d 20s ease-in-out infinite;
}

.hero-shape.shape-2 {
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(139,92,246,0.12), transparent);
    bottom: 10%;
    left: -5%;
    animation: float3d 25s ease-in-out infinite reverse;
}

.hero-shape.shape-3 {
    width: 350px;
    height: 350px;
    background: radial-gradient(circle, rgba(6,182,212,0.1), transparent);
    top: 40%;
    left: 40%;
    animation: float3d 18s ease-in-out infinite 3s;
}

@keyframes float3d {
    0%, 100% { transform: translate(0, 0) rotate(0deg) scale(1); }
    25% { transform: translate(30px, -40px) rotate(5deg) scale(1.05); }
    50% { transform: translate(-20px, 20px) rotate(-3deg) scale(0.95); }
    75% { transform: translate(15px, 35px) rotate(4deg) scale(1.02); }
}

.hero-container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: var(--container-padding);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    position: relative;
    z-index: 2;
}

.hero-content {
    perspective: 1000px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 8px 20px;
    background: rgba(99, 102, 241, 0.08);
    border: 1px solid rgba(99, 102, 241, 0.15);
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--accent-start);
    margin-bottom: 28px;
    animation: fadeSlideUp 0.6s ease-out;
}

.badge-dot {
    width: 8px;
    height: 8px;
    background: #22c55e;
    border-radius: 50%;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; box-shadow: 0 0 0 0 rgba(34, 197, 94, 0.4); }
    50% { opacity: 0.7; box-shadow: 0 0 0 8px rgba(34, 197, 94, 0); }
}

@keyframes fadeSlideUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}

.hero-title {
    font-family: var(--font-heading);
    font-size: 3.8rem;
    font-weight: 800;
    line-height: 1.15;
    letter-spacing: -1.5px;
    margin-bottom: 16px;
    animation: fadeSlideUp 0.6s ease-out 0.1s both;
}

.hero-subtitle {
    font-size: 1.35rem;
    color: var(--text-secondary);
    margin-bottom: 16px;
    font-weight: 400;
    animation: fadeSlideUp 0.6s ease-out 0.2s both;
}

.typing-cursor {
    animation: blink 1s step-end infinite;
    color: var(--accent-start);
    font-weight: 300;
}

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

.hero-description {
    font-size: 1.05rem;
    color: var(--text-muted);
    line-height: 1.8;
    margin-bottom: 32px;
    max-width: 520px;
    animation: fadeSlideUp 0.6s ease-out 0.3s both;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    margin-bottom: 40px;
    animation: fadeSlideUp 0.6s ease-out 0.4s both;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 32px;
    font-size: 0.95rem;
    font-weight: 600;
    border-radius: var(--radius-sm);
    cursor: pointer;
    border: none;
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: var(--gradient-primary);
    color: #fff;
    box-shadow: 0 8px 25px var(--glow-primary);
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left 0.5s;
}

.btn-primary:hover::before {
    left: 100%;
}

.btn-primary:hover {
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 12px 35px var(--glow-primary);
}

.btn-outline {
    background: rgba(99, 102, 241, 0.06);
    color: var(--accent-start);
    border: 2px solid rgba(99, 102, 241, 0.2);
}

.btn-outline:hover {
    background: rgba(99, 102, 241, 0.1);
    border-color: var(--accent-start);
    transform: translateY(-3px);
    box-shadow: 0 8px 25px var(--glow-primary);
}

/* Social Links */
.hero-socials {
    display: flex;
    gap: 14px;
    animation: fadeSlideUp 0.6s ease-out 0.5s both;
}

.social-link {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    background: rgba(99, 102, 241, 0.06);
    border: 1px solid rgba(99, 102, 241, 0.12);
    color: var(--text-secondary);
    font-size: 1.1rem;
    transition: all var(--transition-normal);
}

.social-link:hover {
    background: var(--gradient-primary);
    color: #fff;
    border-color: transparent;
    transform: translateY(-4px) rotateZ(-5deg);
    box-shadow: 0 8px 25px var(--glow-primary);
}

/* Hero Visual — 3D Profile */
.hero-visual {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    perspective: 1200px;
}

.hero-image-wrapper {
    position: relative;
    width: 380px;
    height: 380px;
    display: flex;
    justify-content: center;
    align-items: center;
    transform-style: preserve-3d;
    animation: heroFloat 6s ease-in-out infinite;
}

@keyframes heroFloat {
    0%, 100% { transform: translateY(0) rotateY(0deg); }
    25% { transform: translateY(-15px) rotateY(3deg); }
    50% { transform: translateY(-8px) rotateY(-2deg); }
    75% { transform: translateY(-18px) rotateY(2deg); }
}

.hero-image-ring {
    position: absolute;
    border-radius: 50%;
    border: 2px solid;
    animation: spinRing 15s linear infinite;
}

.ring-1 {
    width: 100%;
    height: 100%;
    border-color: rgba(99, 102, 241, 0.15);
    animation-direction: normal;
}

.ring-2 {
    width: 110%;
    height: 110%;
    border-color: rgba(139, 92, 246, 0.1);
    border-style: dashed;
    animation-direction: reverse;
    animation-duration: 20s;
}

.ring-3 {
    width: 120%;
    height: 120%;
    border-color: rgba(6, 182, 212, 0.08);
    animation-duration: 25s;
}

@keyframes spinRing {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.hero-profile-box {
    width: 280px;
    height: 280px;
    border-radius: 50%;
    overflow: hidden;
    position: relative;
    z-index: 2;
    box-shadow: 0 20px 60px rgba(99, 102, 241, 0.2), 
                0 0 0 4px rgba(255,255,255,0.8),
                0 0 0 6px rgba(99, 102, 241, 0.15);
}

.hero-profile-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* 3D Floating Cards */
.floating-card {
    position: absolute;
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 20px;
    background: var(--bg-card);
    backdrop-filter: blur(16px);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-card);
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-primary);
    z-index: 5;
    transform-style: preserve-3d;
}

.floating-card i {
    font-size: 1.2rem;
    color: var(--accent-start);
}

.floating-card.card-1 {
    top: 10%;
    right: -5%;
    animation: floatCard1 5s ease-in-out infinite;
}

.floating-card.card-2 {
    bottom: 15%;
    left: -10%;
    animation: floatCard2 6s ease-in-out infinite;
}

.floating-card.card-3 {
    bottom: 5%;
    right: 5%;
    animation: floatCard3 7s ease-in-out infinite;
}

@keyframes floatCard1 {
    0%, 100% { transform: translateY(0) rotateX(0) rotateY(0); }
    50% { transform: translateY(-15px) rotateX(5deg) rotateY(-5deg); }
}

@keyframes floatCard2 {
    0%, 100% { transform: translateY(0) rotateX(0) rotateY(0); }
    50% { transform: translateY(-12px) rotateX(-3deg) rotateY(5deg); }
}

@keyframes floatCard3 {
    0%, 100% { transform: translateY(0) rotateX(0) rotateY(0); }
    50% { transform: translateY(-18px) rotateX(4deg) rotateY(-3deg); }
}

/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    z-index: 5;
}

.mouse {
    width: 26px;
    height: 40px;
    border: 2px solid rgba(99, 102, 241, 0.3);
    border-radius: 20px;
    display: flex;
    justify-content: center;
    padding-top: 8px;
}

.wheel {
    width: 4px;
    height: 8px;
    background: var(--accent-start);
    border-radius: 2px;
    animation: scrollWheel 2s ease-in-out infinite;
}

@keyframes scrollWheel {
    0% { opacity: 1; transform: translateY(0); }
    100% { opacity: 0; transform: translateY(12px); }
}

.scroll-indicator span {
    font-size: 0.75rem;
    color: var(--text-muted);
    letter-spacing: 1px;
    text-transform: uppercase;
}

/* ===== Section Common ===== */
.section-container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: var(--container-padding);
}

.section-header {
    text-align: center;
    margin-bottom: 64px;
}

.section-tag {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 20px;
    background: rgba(99, 102, 241, 0.06);
    border: 1px solid rgba(99, 102, 241, 0.12);
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--accent-start);
    margin-bottom: 16px;
}

.section-tag i {
    font-size: 0.8rem;
}

.section-title {
    font-family: var(--font-heading);
    font-size: 2.8rem;
    font-weight: 700;
    letter-spacing: -1px;
    line-height: 1.2;
}

/* ===== About Section ===== */
.about {
    padding: var(--section-padding);
    position: relative;
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 40px;
}

.about-text-box {
    padding: 40px;
}

.about-text-box h3 {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 16px;
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.about-text-box p {
    color: var(--text-secondary);
    margin-bottom: 12px;
    line-height: 1.8;
}

.about-info-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.info-card {
    padding: 28px;
    display: flex;
    gap: 16px;
    align-items: flex-start;
    transform-style: preserve-3d;
}

.info-card:hover {
    transform: translateY(-6px) rotateX(3deg) rotateY(-2deg);
}

.info-card i {
    font-size: 1.5rem;
    color: var(--accent-start);
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(99, 102, 241, 0.08);
    border-radius: var(--radius-sm);
    flex-shrink: 0;
}

.info-card h4 {
    font-size: 0.95rem;
    font-weight: 700;
    margin-bottom: 4px;
}

.info-card p {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

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

/* ===== Stats Section ===== */
.stats {
    padding: 60px 0;
    position: relative;
}

.stats::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(99,102,241,0.03), rgba(139,92,246,0.03));
}

.stats-container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: var(--container-padding);
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    position: relative;
    z-index: 1;
}

.stat-card {
    text-align: center;
    padding: 36px 24px;
    transform-style: preserve-3d;
}

.stat-card:hover {
    transform: translateY(-8px) rotateX(5deg);
}

.stat-icon {
    width: 56px;
    height: 56px;
    margin: 0 auto 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    border-radius: var(--radius-sm);
    color: #fff;
    font-size: 1.3rem;
    box-shadow: 0 8px 20px var(--glow-primary);
}

.stat-number {
    font-family: var(--font-heading);
    font-size: 2.8rem;
    font-weight: 800;
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: inline;
}

.stat-suffix {
    font-family: var(--font-heading);
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--accent-start);
    display: inline;
}

.stat-label {
    font-size: 0.85rem;
    color: var(--text-muted);
    font-weight: 500;
    margin-top: 8px;
}

/* ===== Skills Section ===== */
.skills {
    padding: var(--section-padding);
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 28px;
}

.skill-category {
    padding: 36px;
    transform-style: preserve-3d;
}

.skill-category:hover {
    transform: translateY(-8px) rotateX(3deg) rotateY(-2deg);
}

.skill-category-header {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 24px;
}

.skill-cat-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    border-radius: var(--radius-sm);
    color: #fff;
    font-size: 1.2rem;
    box-shadow: 0 4px 15px var(--glow-primary);
}

.skill-category h3 {
    font-family: var(--font-heading);
    font-size: 1.15rem;
    font-weight: 700;
}

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

.skill-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: rgba(99, 102, 241, 0.05);
    border: 1px solid rgba(99, 102, 241, 0.1);
    border-radius: 50px;
    font-size: 0.82rem;
    font-weight: 500;
    color: var(--text-secondary);
    transition: all var(--transition-normal);
}

.skill-item i {
    color: var(--accent-start);
    font-size: 0.9rem;
}

.skill-item:hover {
    background: var(--gradient-primary);
    color: #fff;
    border-color: transparent;
    transform: translateY(-2px) scale(1.05);
    box-shadow: 0 4px 15px var(--glow-primary);
}

.skill-item:hover i {
    color: #fff;
}

/* ===== Experience / Timeline ===== */
.experience {
    padding: var(--section-padding);
    position: relative;
}

.timeline {
    position: relative;
    max-width: 900px;
    margin: 0 auto;
    padding-left: 40px;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 16px;
    top: 0;
    bottom: 0;
    width: 3px;
    background: linear-gradient(to bottom, var(--accent-start), var(--accent-mid), var(--accent-end));
    border-radius: 3px;
}

.timeline-item {
    position: relative;
    margin-bottom: 40px;
}

.timeline-marker {
    position: absolute;
    left: -32px;
    top: 36px;
    z-index: 2;
}

.marker-dot {
    width: 16px;
    height: 16px;
    background: var(--gradient-primary);
    border-radius: 50%;
    border: 3px solid var(--bg-primary);
    box-shadow: 0 0 0 3px var(--accent-start), 0 4px 15px var(--glow-primary);
}

.timeline-content {
    padding: 32px;
    transform-style: preserve-3d;
}

.timeline-content:hover {
    transform: translateY(-4px) translateX(6px) rotateY(-1deg);
}

.timeline-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
    flex-wrap: wrap;
}

.timeline-date {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--accent-start);
    padding: 4px 14px;
    background: rgba(99, 102, 241, 0.08);
    border-radius: 50px;
}

.timeline-badge {
    font-size: 0.75rem;
    font-weight: 600;
    color: #fff;
    padding: 4px 12px;
    background: var(--gradient-primary);
    border-radius: 50px;
}

.timeline-content h3 {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 6px;
}

.timeline-content h4 {
    font-size: 0.9rem;
    color: var(--text-muted);
    font-weight: 500;
    margin-bottom: 16px;
}

.timeline-content h4 a {
    color: var(--accent-start);
}

.timeline-content h4 a:hover {
    text-decoration: underline;
}

.timeline-content h4 i {
    margin-right: 6px;
    color: var(--accent-start);
}

.timeline-achievements {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.timeline-achievements li {
    font-size: 0.88rem;
    color: var(--text-secondary);
    display: flex;
    align-items: flex-start;
    gap: 10px;
    line-height: 1.6;
}

.timeline-achievements li i {
    color: #22c55e;
    font-size: 0.85rem;
    margin-top: 4px;
    flex-shrink: 0;
}

.freelance-stores {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 16px;
}

.store-tag {
    padding: 4px 14px;
    background: rgba(99, 102, 241, 0.06);
    border: 1px solid rgba(99, 102, 241, 0.12);
    border-radius: 50px;
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--accent-start);
}

/* ===== Services Section ===== */
.services {
    padding: var(--section-padding);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.service-card {
    padding: 36px 28px;
    text-align: center;
    cursor: pointer;
    position: relative;
    transform-style: preserve-3d;
}

.service-card::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 3px;
    background: var(--gradient-primary);
    border-radius: 3px;
    transition: width var(--transition-normal);
}

.service-card:hover::after {
    width: 60%;
}

.service-card:hover {
    transform: translateY(-10px) rotateX(5deg);
    box-shadow: var(--shadow-card-hover);
}

.service-number {
    font-family: var(--font-heading);
    font-size: 3.5rem;
    font-weight: 900;
    background: linear-gradient(135deg, rgba(99,102,241,0.08), rgba(139,92,246,0.04));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    margin-bottom: 16px;
}

.service-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    border-radius: var(--radius-md);
    color: #fff;
    font-size: 1.5rem;
    box-shadow: 0 8px 25px var(--glow-primary);
    transition: all var(--transition-normal);
}

.service-card:hover .service-icon {
    transform: translateZ(20px) rotateY(10deg);
    box-shadow: 0 12px 35px var(--glow-primary);
}

.service-card h3 {
    font-family: var(--font-heading);
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 12px;
}

.service-card p {
    font-size: 0.88rem;
    color: var(--text-muted);
    line-height: 1.7;
}

/* ===== Testimonials ===== */
.testimonials {
    padding: var(--section-padding);
    position: relative;
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.testimonial-card {
    padding: 36px;
    transform-style: preserve-3d;
    cursor: pointer;
}

.testimonial-card:hover {
    transform: translateY(-8px) rotateX(3deg) rotateY(-2deg);
}

.testimonial-stars {
    display: flex;
    gap: 4px;
    margin-bottom: 20px;
}

.testimonial-stars i {
    color: #fbbf24;
    font-size: 0.9rem;
    filter: drop-shadow(0 2px 4px rgba(251, 191, 36, 0.3));
}

.testimonial-text {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 24px;
    font-style: italic;
    position: relative;
    padding-left: 16px;
    border-left: 3px solid rgba(99,102,241,0.2);
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 14px;
}

.author-avatar {
    width: 48px;
    height: 48px;
    background: var(--gradient-primary);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-weight: 700;
    font-size: 0.9rem;
    box-shadow: 0 4px 15px var(--glow-primary);
}

.testimonial-author h4 {
    font-size: 0.95rem;
    font-weight: 700;
}

.testimonial-author span {
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* ===== Contact Section ===== */
.contact {
    padding: var(--section-padding);
}

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

.contact-info-card {
    padding: 24px;
    display: flex;
    gap: 16px;
    align-items: center;
    margin-bottom: 16px;
    transform-style: preserve-3d;
}

.contact-info-card:hover {
    transform: translateY(-4px) translateX(4px) rotateY(-2deg);
}

.contact-info-card i {
    font-size: 1.3rem;
    color: #fff;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    border-radius: var(--radius-sm);
    flex-shrink: 0;
    box-shadow: 0 4px 15px var(--glow-primary);
}

.contact-info-card h4 {
    font-size: 0.85rem;
    font-weight: 700;
    margin-bottom: 4px;
}

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

.contact-info-card a:hover {
    color: var(--accent-start);
}

.contact-socials {
    display: flex;
    gap: 12px;
    margin-top: 8px;
}

.contact-social-btn {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    background: rgba(99, 102, 241, 0.06);
    border: 1px solid rgba(99, 102, 241, 0.12);
    color: var(--text-secondary);
    font-size: 1.1rem;
    transition: all var(--transition-normal);
}

.contact-social-btn:hover {
    background: var(--gradient-primary);
    color: #fff;
    border-color: transparent;
    transform: translateY(-4px) rotateZ(-5deg);
    box-shadow: 0 8px 25px var(--glow-primary);
}

/* Contact Form */
.contact-form {
    padding: 40px;
}

.form-group {
    position: relative;
    margin-bottom: 20px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 16px 20px 16px 50px;
    background: rgba(99, 102, 241, 0.04);
    border: 2px solid rgba(99, 102, 241, 0.1);
    border-radius: var(--radius-sm);
    font-size: 0.95rem;
    font-family: var(--font-primary);
    color: var(--text-primary);
    transition: all var(--transition-normal);
    outline: none;
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--accent-start);
    background: rgba(99, 102, 241, 0.06);
    box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.1);
}

.form-group i {
    position: absolute;
    left: 18px;
    top: 18px;
    color: var(--text-muted);
    font-size: 0.95rem;
    transition: var(--transition-fast);
}

.form-group input:focus + i,
.form-group textarea:focus + i {
    color: var(--accent-start);
}

.btn-full {
    width: 100%;
    justify-content: center;
    padding: 16px;
    font-size: 1rem;
}

/* ===== Footer ===== */
.footer {
    padding: 60px 0 0;
    position: relative;
    background: var(--bg-secondary);
    border-top: 1px solid rgba(99, 102, 241, 0.08);
}

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

.footer-top {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 40px;
    padding-bottom: 40px;
    border-bottom: 1px solid rgba(99, 102, 241, 0.08);
}

.footer-logo {
    font-family: var(--font-heading);
    font-size: 1.6rem;
    font-weight: 700;
    display: inline-block;
    margin-bottom: 12px;
}

.footer-brand p {
    font-size: 0.88rem;
    color: var(--text-muted);
    line-height: 1.7;
    max-width: 350px;
}

.footer-links h4 {
    font-size: 0.95rem;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.footer-links a {
    display: block;
    font-size: 0.88rem;
    color: var(--text-muted);
    padding: 4px 0;
    transition: all var(--transition-fast);
}

.footer-links a:hover {
    color: var(--accent-start);
    transform: translateX(6px);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 24px 0;
}

.footer-bottom p {
    font-size: 0.85rem;
    color: var(--text-muted);
}

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

.footer-socials a {
    width: 38px;
    height: 38px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    background: rgba(99, 102, 241, 0.06);
    border: 1px solid rgba(99, 102, 241, 0.12);
    color: var(--text-muted);
    font-size: 0.95rem;
    transition: all var(--transition-normal);
}

.footer-socials a:hover {
    background: var(--gradient-primary);
    color: #fff;
    border-color: transparent;
    transform: translateY(-3px);
    box-shadow: 0 6px 20px var(--glow-primary);
}

/* ===== Scroll To Top ===== */
.scroll-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 48px;
    height: 48px;
    background: var(--gradient-primary);
    color: #fff;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 1.1rem;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all var(--transition-normal);
    box-shadow: 0 8px 25px var(--glow-primary);
    z-index: 999;
}

.scroll-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.scroll-top:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 35px var(--glow-primary);
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
    .hero-container { grid-template-columns: 1fr; text-align: center; gap: 40px; }
    .hero-content { order: 2; }
    .hero-visual { order: 1; }
    .hero-description { margin: 0 auto 32px; }
    .hero-buttons { justify-content: center; }
    .hero-socials { justify-content: center; }
    .hero-title { font-size: 3rem; }
    .hero-image-wrapper { width: 300px; height: 300px; }
    .hero-profile-box { width: 220px; height: 220px; }
    .floating-card.card-2 { left: 0; }
    .stats-container { grid-template-columns: repeat(2, 1fr); }
    .services-grid { grid-template-columns: repeat(2, 1fr); }
    .testimonials-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-top { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
    :root { --section-padding: 80px 0; }
    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 280px;
        height: 100vh;
        background: rgba(255,255,255,0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        padding: 100px 30px 40px;
        gap: 4px;
        transition: right var(--transition-normal);
        box-shadow: -10px 0 40px rgba(0,0,0,0.05);
    }
    .nav-links.open { right: 0; }
    .hamburger { display: flex; }
    .nav-cta { display: none; }

    .hero { padding: 100px 0 40px; }
    .hero-title { font-size: 2.4rem; }
    .hero-subtitle { font-size: 1.1rem; }
    .section-title { font-size: 2.2rem; }
    .skills-grid { grid-template-columns: 1fr; }
    .about-info-grid { grid-template-columns: 1fr; }
    .services-grid { grid-template-columns: 1fr; }
    .testimonials-grid { grid-template-columns: 1fr; }
    .contact-grid { grid-template-columns: 1fr; }
    .stats-container { grid-template-columns: repeat(2, 1fr); }
    .footer-top { grid-template-columns: 1fr; }
    .footer-bottom { flex-direction: column; gap: 16px; text-align: center; }
    .floating-card { display: none; }
}

@media (max-width: 480px) {
    .hero-title { font-size: 2rem; }
    .hero-image-wrapper { width: 240px; height: 240px; }
    .hero-profile-box { width: 180px; height: 180px; }
    .hero-buttons { flex-direction: column; }
    .stat-number { font-size: 2.2rem; }
    .section-title { font-size: 1.8rem; }
}