/* ==========================================================================
   Portfolio Website — Modern Premium Design
   Dark theme, gradient accents, glassmorphism, micro-animations
   ========================================================================== */

/* CSS Custom Properties */
:root {
    /* Dark theme colors */
    --color-bg: #0a0a0b;
    --color-bg-elevated: #111113;
    --color-bg-card: rgba(255, 255, 255, 0.03);
    --color-bg-card-hover: rgba(255, 255, 255, 0.06);

    --color-border: rgba(255, 255, 255, 0.08);
    --color-border-hover: rgba(255, 255, 255, 0.15);

    --color-text-primary: #fafafa;
    --color-text-secondary: #a1a1aa;
    --color-text-muted: #71717a;

    /* Accent gradient */
    --gradient-accent: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
    --gradient-accent-subtle: linear-gradient(135deg, rgba(102, 126, 234, 0.15) 0%, rgba(118, 75, 162, 0.15) 100%);
    --gradient-glow: radial-gradient(ellipse at center, rgba(102, 126, 234, 0.15) 0%, transparent 70%);

    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 2rem;
    --font-size-4xl: 2.75rem;
    --font-size-5xl: 3.5rem;
    --font-size-6xl: 4.5rem;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 0.75rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    --spacing-4xl: 6rem;
    --spacing-5xl: 8rem;

    --max-width: 1100px;
    --border-radius: 12px;
    --border-radius-lg: 20px;
    --transition-fast: 0.15s ease;
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

/* Animated background grid */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
    background-size: 60px 60px;
    pointer-events: none;
    z-index: -1;
}

/* Gradient orbs */
.gradient-orb {
    position: fixed;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.5;
    pointer-events: none;
    z-index: -1;
    animation: float 20s ease-in-out infinite;
}

.gradient-orb-1 {
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(102, 126, 234, 0.3) 0%, transparent 70%);
    top: -200px;
    right: -200px;
}

.gradient-orb-2 {
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(118, 75, 162, 0.25) 0%, transparent 70%);
    bottom: 20%;
    left: -150px;
    animation-delay: -10s;
}

.gradient-orb-3 {
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(240, 147, 251, 0.2) 0%, transparent 70%);
    top: 50%;
    right: -100px;
    animation-delay: -5s;
}

@keyframes float {

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

    25% {
        transform: translate(30px, -30px) scale(1.05);
    }

    50% {
        transform: translate(-20px, 20px) scale(0.95);
    }

    75% {
        transform: translate(20px, 40px) scale(1.02);
    }
}

/* Selection */
::selection {
    background: rgba(102, 126, 234, 0.3);
    color: var(--color-text-primary);
}

/* Typography */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-weight: 600;
    line-height: 1.2;
    color: var(--color-text-primary);
    letter-spacing: -0.02em;
}

h1 {
    font-size: var(--font-size-5xl);
}

h2 {
    font-size: var(--font-size-3xl);
}

h3 {
    font-size: var(--font-size-xl);
}

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

a:hover {
    color: #667eea;
}

ul {
    list-style: none;
}

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

/* Text highlight for key phrases */
.text-highlight {
    color: var(--color-text-primary);
    position: relative;
}

.text-highlight::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--gradient-accent);
    opacity: 0.6;
}

/* Layout */
.container {
    width: 100%;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-xl);
}

.section {
    padding: var(--spacing-3xl) 0;
    position: relative;
}

/* Header */
.site-header {
    position: fixed;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 100%;
    max-width: 100%;
    z-index: 1000;
    padding: 0 24px;
    transition: top 0.4s cubic-bezier(0.4, 0, 0.2, 1),
        max-width 0.4s cubic-bezier(0.4, 0, 0.2, 1),
        background 0.4s ease,
        border-radius 0.4s ease,
        border 0.4s ease,
        padding 0.4s ease;
}

.site-header.scrolled {
    top: 12px;
    max-width: 1150px;
    padding: 0;
    background: rgba(17, 17, 19, 0.9);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: 50px;
    border: 1px solid var(--color-border);
}

.site-header::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: var(--gradient-accent);
    opacity: 0;
    transition: opacity 0.4s ease;
}

.site-header.scrolled::after {
    opacity: 0;
}

.site-header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.logo {
    font-size: var(--font-size-xl);
    font-weight: 800;
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    position: relative;
    display: flex;
    align-items: center;
    gap: 2px;
    letter-spacing: -0.02em;
    text-decoration: none;
    min-width: 200px;
    /* Prevent layout shift */
}

/* Cursor is now handled by JS class 'logo-cursor' */
.logo-cursor {
    display: inline-block;
    color: #667eea;
    -webkit-text-fill-color: #667eea;
    animation: blink 1s step-end infinite;
    font-weight: 800;
    margin-bottom: 4px;
}

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

.nav {
    display: flex;
    align-items: center;
    gap: var(--spacing-xl);
}

.nav-list {
    display: flex;
    gap: var(--spacing-xl);
}

.nav-list a {
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--color-text-muted);
    padding: var(--spacing-xs) 0;
    position: relative;
}

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

.nav-list a:hover {
    color: var(--color-text-primary);
}

.nav-list a:hover::after {
    width: 100%;
}

/* Mobile Nav Toggle */
.nav-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 6px;
    width: 28px;
    height: 28px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
}

.nav-toggle span {
    display: block;
    width: 100%;
    height: 2px;
    background: var(--color-text-primary);
    transition: transform var(--transition), opacity var(--transition);
    border-radius: 2px;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-xl);
    font-family: var(--font-family);
    font-size: var(--font-size-sm);
    font-weight: 600;
    text-decoration: none;
    border-radius: 50px;
    cursor: pointer;
    transition: all var(--transition);
    border: none;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: var(--gradient-accent);
    color: white;
    box-shadow: 0 4px 20px rgba(102, 126, 234, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(102, 126, 234, 0.4);
    color: white;
}

.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-secondary {
    background: transparent;
    color: var(--color-text-primary);
    border: 1px solid var(--color-border);
}

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

.btn-nav {
    padding: var(--spacing-xs) var(--spacing-md);
    font-size: var(--font-size-sm);
    background: var(--gradient-accent);
    color: white;
    border-radius: 50px;
    box-shadow: 0 2px 10px rgba(102, 126, 234, 0.3);
}

.btn-nav:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
    color: white;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding-top: 72px;
    position: relative;
    text-align: center;
}

.hero-content {
    position: relative;
    z-index: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
}


@keyframes pulse {

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

    50% {
        opacity: 0.5;
        transform: scale(1.2);
    }
}

.hero-headline {
    max-width: 900px;
    margin-bottom: var(--spacing-xl);
    font-size: var(--font-size-6xl);
    font-weight: 700;
    line-height: 1.1;
    letter-spacing: -0.03em;
}

.hero-subtext {
    max-width: 650px;
    font-size: var(--font-size-lg);
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-2xl);
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
    justify-content: center;
}

/* Stats Bar */
.stats-bar {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-lg);
    padding: var(--spacing-2xl) 0;
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
    margin: var(--spacing-4xl) 0;
}

.stat-item {
    text-align: center;
}

.stat-number {
    font-size: var(--font-size-4xl);
    font-weight: 700;
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--spacing-xs);
}

.stat-label {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
}

/* About Me Section */
.about-section {
    background: var(--color-bg-elevated);
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
}

.about-grid {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: var(--spacing-3xl);
    align-items: start;
}

.about-content {
    display: block;
}

.about-image {
    position: sticky;
    top: 100px;
}

.about-image img {
    width: 100%;
    height: auto;
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--color-border);
    object-fit: cover;
}

.about-headline {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    margin-bottom: var(--spacing-lg);
    line-height: 1.3;
}

.about-intro {
    font-size: var(--font-size-lg);
    color: var(--color-text-secondary);
    line-height: 1.8;
    margin-bottom: var(--spacing-xl);
}

.about-skills-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-lg);
    color: var(--color-text-primary);
}

.about-skills-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-sm) var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.about-skill-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--font-size-base);
    color: var(--color-text-secondary);
}

.skill-check {
    color: #667eea;
    font-weight: 600;
}

.about-closing {
    font-size: var(--font-size-base);
    color: var(--color-text-secondary);
    line-height: 1.7;
    margin-bottom: var(--spacing-xl);
    padding: var(--spacing-lg);
    background: var(--color-bg-card);
    border-left: 3px solid #667eea;
    border-radius: 0 var(--border-radius-md) var(--border-radius-md) 0;
}

.about-buttons {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

/* Section titles */
.section-header {
    margin-bottom: var(--spacing-3xl);
}

.section-label {
    display: inline-block;
    font-size: var(--font-size-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: #667eea;
    margin-bottom: var(--spacing-md);
}

.section-title {
    font-size: var(--font-size-4xl);
    margin-bottom: var(--spacing-md);
}

.section-subtitle {
    font-size: var(--font-size-lg);
    color: var(--color-text-secondary);
    max-width: 600px;
}

/* Credibility Section */
.credibility {
    background: var(--color-bg-elevated);
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
}

.credibility-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
}

.credibility-item {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    transition: all var(--transition);
}

.credibility-item:hover {
    background: var(--color-bg-card-hover);
    border-color: var(--color-border-hover);
    transform: translateY(-2px);
}

.credibility-icon {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-accent-subtle);
    border-radius: 10px;
    font-size: var(--font-size-lg);
    flex-shrink: 0;
}

.credibility-text {
    font-size: var(--font-size-sm);
    line-height: 1.6;
}

.credibility-text a {
    color: #667eea;
    text-decoration: underline;
    text-underline-offset: 3px;
}

/* What I Do */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-lg);
}

.service-card {
    padding: var(--spacing-xl);
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-lg);
    transition: all var(--transition);
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--gradient-accent);
    opacity: 0;
    transition: opacity var(--transition);
}

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

.service-card:hover::before {
    opacity: 1;
}

.service-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-accent-subtle);
    border-radius: 12px;
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-lg);
}

.service-card h3 {
    margin-bottom: var(--spacing-sm);
}

.service-card p {
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
    line-height: 1.7;
}

/* Case Studies / Projects */
.case-studies {
    background: var(--color-bg-elevated);
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
}

.projects-grid {
    display: grid;
    gap: var(--spacing-xl);
}

.project-card {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-2xl);
    padding: var(--spacing-2xl);
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-lg);
    transition: all var(--transition);
    position: relative;
    overflow: hidden;
}

.project-card::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient-glow);
    opacity: 0;
    transition: opacity var(--transition-slow);
    pointer-events: none;
}

.project-card:hover {
    border-color: rgba(102, 126, 234, 0.3);
    transform: translateY(-4px);
}

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

.project-content {
    position: relative;
    z-index: 1;
}

.project-tag {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-sm);
    background: var(--gradient-accent-subtle);
    border-radius: 6px;
    font-size: var(--font-size-xs);
    font-weight: 600;
    color: #667eea;
    margin-bottom: var(--spacing-lg);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.project-title {
    font-size: var(--font-size-2xl);
    margin-bottom: var(--spacing-md);
    line-height: 1.3;
}

.project-description {
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-lg);
    line-height: 1.7;
}

.project-meta {
    position: relative;
    z-index: 1;
}

.project-meta-item {
    margin-bottom: var(--spacing-lg);
}

.project-meta-item:last-child {
    margin-bottom: 0;
}

.project-meta-label {
    font-size: var(--font-size-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-xs);
}

.project-meta-value {
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
    line-height: 1.6;
}

.project-meta-value ul {
    padding-left: var(--spacing-md);
}

.project-meta-value li {
    position: relative;
    padding-left: var(--spacing-lg);
    margin-bottom: var(--spacing-xs);
}

.project-meta-value li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: #667eea;
    font-size: var(--font-size-xs);
}

.project-outcome {
    padding: var(--spacing-md);
    background: rgba(102, 126, 234, 0.1);
    border-left: 3px solid #667eea;
    border-radius: 0 var(--border-radius) var(--border-radius) 0;
}

.project-outcome p {
    margin: 0;
    color: var(--color-text-primary);
    font-weight: 500;
}

/* Tech stack pills */
.tech-stack {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
    margin-top: var(--spacing-lg);
}

.tech-pill {
    padding: var(--spacing-xs) var(--spacing-sm);
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: 6px;
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
}

/* Talks Section */
.talks-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
}

.talk-card {
    padding: var(--spacing-xl);
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-lg);
    transition: all var(--transition);
}

.talk-card:hover {
    background: var(--color-bg-card-hover);
    border-color: var(--color-border-hover);
    transform: translateY(-2px);
}

.talk-type {
    font-size: var(--font-size-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: #667eea;
    margin-bottom: var(--spacing-sm);
}

.talk-card h3 {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-xs);
}

.talk-venue {
    color: var(--color-text-muted);
    font-size: var(--font-size-sm);
}

.writing-cta {
    margin-top: var(--spacing-2xl);
    padding: var(--spacing-xl);
    background: var(--gradient-accent-subtle);
    border: 1px solid rgba(102, 126, 234, 0.2);
    border-radius: var(--border-radius-lg);
    text-align: center;
}

.writing-cta p {
    margin-bottom: var(--spacing-md);
    color: var(--color-text-primary);
}

.writing-cta a {
    color: #667eea;
    font-weight: 600;
    text-decoration: underline;
    text-underline-offset: 3px;
}

/* How I Work Section */
.work-style {
    background: var(--color-bg);
}

.work-style-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: start;
}

.work-style-text p {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-lg);
    color: var(--color-text-secondary);
    line-height: 1.8;
}

.work-style-text p:first-child {
    font-size: var(--font-size-xl);
    color: var(--color-text-primary);
}

.work-style-values {
    padding: var(--spacing-xl);
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-lg);
}

.work-style-values h3 {
    margin-bottom: var(--spacing-lg);
    font-size: var(--font-size-lg);
}

.value-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-sm) 0;
    border-bottom: 1px solid var(--color-border);
}

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

.value-icon {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-accent-subtle);
    border-radius: 8px;
    font-size: var(--font-size-sm);
}

.value-item span {
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
}

/* Contact CTA Section */
.contact-cta {
    position: relative;
    background: var(--color-bg);
    text-align: center;
    overflow: hidden;
    padding: var(--spacing-5xl) 0;
}

.cta-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(102, 126, 234, 0.15) 0%, transparent 70%);
    pointer-events: none;
    animation: pulse-glow 4s ease-in-out infinite;
}

@keyframes pulse-glow {

    0%,
    100% {
        opacity: 0.5;
        transform: translate(-50%, -50%) scale(1);
    }

    50% {
        opacity: 0.8;
        transform: translate(-50%, -50%) scale(1.1);
    }
}

.cta-content {
    position: relative;
    z-index: 1;
    max-width: 650px;
    margin: 0 auto;
}

.cta-badge {
    display: inline-block;
    padding: 0.5rem 1.25rem;
    background: rgba(102, 126, 234, 0.1);
    border: 1px solid rgba(102, 126, 234, 0.3);
    border-radius: 50px;
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: #667eea;
    margin-bottom: var(--spacing-xl);
    animation: float 3s ease-in-out infinite;
}

@keyframes float {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-5px);
    }
}

.cta-headline {
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: var(--spacing-lg);
    letter-spacing: -0.03em;
}

.cta-description {
    font-size: var(--font-size-lg);
    color: var(--color-text-secondary);
    line-height: 1.8;
    margin-bottom: var(--spacing-2xl);
}

.cta-email-btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: 1.25rem 2rem;
    background: var(--gradient-accent);
    border-radius: 16px;
    font-size: var(--font-size-base);
    font-weight: 600;
    color: white;
    text-decoration: none;
    transition: all 0.3s ease;
    box-shadow: 0 4px 30px rgba(102, 126, 234, 0.3);
    position: relative;
    overflow: hidden;
}

.cta-email-btn::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 ease;
}

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

.cta-email-btn:hover {
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 8px 40px rgba(102, 126, 234, 0.5);
}

.cta-btn-icon {
    font-size: 1.5rem;
}

.cta-btn-text {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 2px;
}

.cta-btn-label {
    font-size: 0.8rem;
    opacity: 0.9;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.cta-btn-email {
    font-size: 1.1rem;
    font-weight: 700;
}

.cta-btn-arrow {
    font-size: 1.5rem;
    margin-left: var(--spacing-sm);
    transition: transform 0.3s ease;
}

.cta-email-btn:hover .cta-btn-arrow {
    transform: translateX(5px);
}

.cta-trust {
    display: flex;
    justify-content: center;
    gap: var(--spacing-2xl);
    margin-top: var(--spacing-2xl);
}

.cta-trust-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
}

.trust-check {
    color: #22c55e;
    font-weight: 700;
}

.contact-form .btn {
    width: 100%;
}

/* Footer */
.site-footer {
    padding: var(--spacing-2xl) 0;
    border-top: 1px solid var(--color-border);
    text-align: center;
}

.site-footer p {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
}

/* Responsive Design */
@media (max-width: 1024px) {
    .project-card {
        grid-template-columns: 1fr;
    }

    .cta-trust {
        flex-direction: column;
        gap: var(--spacing-md);
    }

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

@media (max-width: 768px) {
    :root {
        --spacing-4xl: 4rem;
        --spacing-5xl: 5rem;
    }

    h1,
    .hero-headline {
        font-size: var(--font-size-4xl);
    }

    .section-title {
        font-size: var(--font-size-3xl);
    }

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

    .hero-illustration {
        display: none;
    }

    .nav {
        display: flex;
        flex-direction: column;
        align-items: flex-start;
        position: fixed;
        top: 72px;
        left: 0;
        right: 0;
        background: rgba(10, 10, 11, 0.98);
        backdrop-filter: blur(20px);
        border-bottom: 1px solid var(--color-border);
        padding: var(--spacing-xl) var(--spacing-lg);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all var(--transition);
        /* Scroll Fix */
        max-height: calc(100vh - 72px);
        overflow-y: auto;
        overscroll-behavior: contain;
    }

    .nav.is-open {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }

    /* Body Scroll Lock */
    body.no-scroll {
        overflow: hidden;
    }

    .nav-list {
        display: flex;
        flex-direction: column;
        gap: var(--spacing-lg);
        width: 100%;
        margin-bottom: var(--spacing-xl);
    }

    .nav-list a {
        font-size: var(--font-size-lg);
        padding: var(--spacing-xs) 0;
        display: block;
    }

    .nav .btn-nav {
        width: 100%;
        text-align: center;
        justify-content: center;
    }

    .nav-toggle {
        display: flex;
    }

    .nav-toggle.is-active span:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }

    .nav-toggle.is-active span:nth-child(2) {
        opacity: 0;
    }

    .nav-toggle.is-active span:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }

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

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

    .hero-buttons .btn {
        width: 100%;
    }

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

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

    .about-image {
        position: static;
        max-width: 280px;
        margin: 0 auto;
    }

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

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

    .gradient-orb {
        display: none;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-md);
    }

    h1,
    .hero-headline {
        font-size: var(--font-size-3xl);
    }

    .section {
        padding: var(--spacing-3xl) 0;
    }

    .stats-bar {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-lg);
        text-align: center;
    }

    .stat-number {
        font-size: var(--font-size-2xl);
        margin-bottom: 0;
    }
}

/* Utility Classes */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}