/* ========================================
   CSS Variables & Design Tokens
   ======================================== */

:root {
    /* Colors - Light Mode - IT Professional Theme */
    --color-primary: hsl(210, 100%, 50%);
    --color-primary-light: hsl(210, 100%, 60%);
    --color-primary-dark: hsl(210, 100%, 40%);
    --color-secondary: hsl(195, 100%, 45%);
    --color-accent: hsl(160, 84%, 45%);
    --color-success: hsl(142, 71%, 45%);
    --color-warning: hsl(45, 100%, 51%);

    --color-bg-primary: hsl(220, 20%, 98%);
    --color-bg-secondary: hsl(220, 20%, 95%);
    --color-bg-tertiary: hsl(220, 15%, 92%);

    --color-text-primary: hsl(220, 20%, 10%);
    --color-text-secondary: hsl(220, 15%, 35%);
    --color-text-tertiary: hsl(220, 10%, 55%);

    --color-border: hsla(220, 20%, 80%, 0.3);
    --color-shadow: hsla(220, 20%, 10%, 0.08);

    /* Glassmorphism */
    --glass-bg: hsla(0, 0%, 100%, 0.7);
    --glass-border: hsla(255, 255%, 255%, 0.18);
    --glass-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.15);

    /* Gradients */
    --gradient-primary: linear-gradient(135deg, hsl(210, 100%, 50%) 0%, hsl(195, 100%, 45%) 100%);
    --gradient-accent: linear-gradient(135deg, hsl(160, 84%, 45%) 0%, hsl(195, 100%, 45%) 100%);
    --gradient-mesh:
        radial-gradient(at 0% 0%, hsla(210, 100%, 50%, 0.15) 0px, transparent 50%),
        radial-gradient(at 100% 0%, hsla(195, 100%, 45%, 0.12) 0px, transparent 50%),
        radial-gradient(at 100% 100%, hsla(160, 84%, 45%, 0.1) 0px, transparent 50%),
        radial-gradient(at 0% 100%, hsla(210, 100%, 50%, 0.08) 0px, transparent 50%);

    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-display: 'Space Grotesk', var(--font-primary);
    --font-mono: 'Fira Code', 'Courier New', monospace;

    --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;

    /* 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;

    /* Layout */
    --container-max-width: 1200px;
    --border-radius-sm: 0.5rem;
    --border-radius-md: 0.75rem;
    --border-radius-lg: 1rem;
    --border-radius-xl: 1.5rem;
    --border-radius-2xl: 2rem;

    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 400ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-bounce: 600ms cubic-bezier(0.68, -0.55, 0.265, 1.55);

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 var(--color-shadow);
    --shadow-md: 0 4px 6px -1px var(--color-shadow), 0 2px 4px -1px var(--color-shadow);
    --shadow-lg: 0 10px 15px -3px var(--color-shadow), 0 4px 6px -2px var(--color-shadow);
    --shadow-xl: 0 20px 25px -5px var(--color-shadow), 0 10px 10px -5px var(--color-shadow);
    --shadow-2xl: 0 25px 50px -12px var(--color-shadow);
}

/* Dark Mode Variables */
[data-theme="dark"] {
    --color-bg-primary: hsl(220, 20%, 8%);
    --color-bg-secondary: hsl(220, 20%, 12%);
    --color-bg-tertiary: hsl(220, 20%, 16%);

    --color-text-primary: hsl(220, 20%, 98%);
    --color-text-secondary: hsl(220, 15%, 75%);
    --color-text-tertiary: hsl(220, 10%, 60%);

    --color-border: hsla(220, 20%, 40%, 0.3);
    --color-shadow: hsla(0, 0%, 0%, 0.3);

    --glass-bg: hsla(220, 20%, 12%, 0.7);
    --glass-border: hsla(255, 255%, 255%, 0.1);
    --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);

    --gradient-mesh:
        radial-gradient(at 0% 0%, hsla(210, 100%, 50%, 0.2) 0px, transparent 50%),
        radial-gradient(at 100% 0%, hsla(195, 100%, 45%, 0.15) 0px, transparent 50%),
        radial-gradient(at 100% 100%, hsla(160, 84%, 45%, 0.12) 0px, transparent 50%),
        radial-gradient(at 0% 100%, hsla(210, 100%, 50%, 0.1) 0px, transparent 50%);
}

/* ========================================
   Reset & Base Styles
   ======================================== */

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

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

body {
    font-family: var(--font-primary);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--color-text-primary);
    background: var(--color-bg-primary);
    background-image: var(--gradient-mesh);
    background-attachment: fixed;
    transition: background-color var(--transition-base), color var(--transition-base);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ========================================
   Typography
   ======================================== */

h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-display);
    font-weight: 700;
    line-height: 1.2;
    color: var(--color-text-primary);
    letter-spacing: -0.02em;
}

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

/* ========================================
   Glassmorphism Components
   ======================================== */

.glass {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    box-shadow: var(--glass-shadow);
}

.glass-strong {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    box-shadow: var(--shadow-xl);
}

/* ========================================
   Layout Components
   ======================================== */

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

section {
    padding: var(--spacing-5xl) 0;
    position: relative;
}

.section-title {
    font-size: var(--font-size-4xl);
    text-align: center;
    margin-bottom: var(--spacing-3xl);
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    position: relative;
    animation: fadeInUp 0.6s ease-out;
}

.section-title::after {
    content: '';
    display: block;
    width: 80px;
    height: 4px;
    background: var(--gradient-primary);
    margin: var(--spacing-lg) auto 0;
    border-radius: 2px;
}

/* ========================================
   Navigation
   ======================================== */

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--glass-border);
    transition: all var(--transition-base);
}

.navbar.scrolled {
    box-shadow: var(--shadow-lg);
    background: var(--glass-bg);
}

.navbar .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: var(--spacing-md);
    padding-bottom: var(--spacing-md);
}

.nav-brand {
    font-family: var(--font-display);
    font-size: var(--font-size-xl);
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    cursor: pointer;
    transition: transform var(--transition-fast);
}

.nav-brand:hover {
    transform: scale(1.05);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-xl);
}

.nav-link {
    font-weight: 500;
    color: var(--color-text-secondary);
    position: relative;
    padding: var(--spacing-xs) 0;
    transition: color var(--transition-fast);
}

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

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

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

.theme-toggle {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius-md);
    padding: var(--spacing-sm);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
    width: 44px;
    height: 44px;
}

.theme-toggle:hover {
    transform: scale(1.1) rotate(10deg);
    box-shadow: var(--shadow-md);
}

.theme-toggle .sun-icon,
.theme-toggle .moon-icon {
    font-size: var(--font-size-lg);
    transition: all var(--transition-fast);
}

[data-theme="light"] .moon-icon,
[data-theme="dark"] .sun-icon {
    display: none;
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-sm);
}

.mobile-menu-toggle span {
    width: 26px;
    height: 3px;
    background: var(--color-text-primary);
    transition: all var(--transition-base);
    border-radius: 2px;
}

/* ========================================
   Hero Section
   ======================================== */

.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 80px;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: -1;
    overflow: hidden;
}

.gradient-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(100px);
    opacity: 0.6;
    animation: float 25s ease-in-out infinite;
}

.orb-1 {
    width: 600px;
    height: 600px;
    top: -15%;
    right: -10%;
    background: radial-gradient(circle, hsla(210, 100%, 50%, 0.3) 0%, transparent 70%);
    animation-delay: 0s;
}

.orb-2 {
    width: 500px;
    height: 500px;
    bottom: -10%;
    left: -10%;
    background: radial-gradient(circle, hsla(195, 100%, 45%, 0.25) 0%, transparent 70%);
    animation-delay: 8s;
}

.orb-3 {
    width: 450px;
    height: 450px;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: radial-gradient(circle, hsla(160, 84%, 45%, 0.2) 0%, transparent 70%);
    animation-delay: 16s;
}

@keyframes float {

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

    33% {
        transform: translate(40px, -40px) scale(1.1);
    }

    66% {
        transform: translate(-30px, 30px) scale(0.9);
    }
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-4xl);
    align-items: center;
}

.hero-text {
    animation: fadeInUp 0.8s ease-out;
}

.greeting {
    display: block;
    font-size: var(--font-size-xl);
    font-weight: 500;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-sm);
    animation: fadeIn 0.6s ease-out;
}

.name {
    display: block;
    font-size: var(--font-size-5xl);
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--spacing-lg);
    animation: fadeInUp 0.8s ease-out 0.2s both;
}

.hero-subtitle {
    font-size: var(--font-size-xl);
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-2xl);
    line-height: 1.6;
    animation: fadeInUp 0.8s ease-out 0.4s both;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
    animation: fadeInUp 0.8s ease-out 0.6s both;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-xl);
    border-radius: var(--border-radius-lg);
    font-weight: 600;
    font-size: var(--font-size-base);
    transition: all var(--transition-base);
    cursor: pointer;
    border: none;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn:hover::before {
    width: 300px;
    height: 300px;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: var(--shadow-lg);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-xl);
}

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

.btn-secondary:hover {
    background: var(--glass-bg);
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.hero-image {
    display: flex;
    justify-content: center;
    animation: fadeInUp 0.8s ease-out 0.3s both;
}

.profile-card {
    position: relative;
    padding: var(--spacing-xl);
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border-radius: var(--border-radius-2xl);
    border: 1px solid var(--glass-border);
    box-shadow: var(--shadow-2xl);
    transition: all var(--transition-slow);
}

.profile-card:hover {
    transform: translateY(-10px) scale(1.02);
    box-shadow: var(--shadow-2xl), 0 0 40px rgba(33, 150, 243, 0.3);
}

.profile-avatar {
    width: 320px;
    height: 320px;
    border-radius: var(--border-radius-xl);
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}

.avatar-placeholder {
    font-size: 6rem;
    font-weight: 700;
    color: white;
    font-family: var(--font-display);
}

.profile-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: var(--border-radius-xl);
}

.scroll-indicator {
    position: absolute;
    bottom: var(--spacing-3xl);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--color-text-tertiary);
    font-size: var(--font-size-sm);
    font-weight: 500;
    animation: bounce 2s infinite;
}

.scroll-arrow {
    width: 24px;
    height: 24px;
    border-right: 2px solid currentColor;
    border-bottom: 2px solid currentColor;
    transform: rotate(45deg);
}

@keyframes bounce {

    0%,
    100% {
        transform: translateX(-50%) translateY(0);
    }

    50% {
        transform: translateX(-50%) translateY(-15px);
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(40px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ========================================
   About Section
   ======================================== */

.about {
    background: transparent;
}

.about-content {
    max-width: 900px;
    margin: 0 auto;
}

.about-text {
    font-size: var(--font-size-lg);
}

.lead {
    font-size: var(--font-size-2xl);
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-xl);
    line-height: 1.4;
}

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

.about-highlights {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-xl);
    margin-top: var(--spacing-3xl);
}

.highlight-item {
    display: flex;
    gap: var(--spacing-lg);
    padding: var(--spacing-xl);
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border-radius: var(--border-radius-xl);
    border: 1px solid var(--glass-border);
    transition: all var(--transition-base);
}

.highlight-item:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: var(--color-primary);
}

.highlight-icon {
    font-size: var(--font-size-3xl);
    filter: drop-shadow(0 4px 8px rgba(33, 150, 243, 0.3));
}

.highlight-item h3 {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-xs);
    color: var(--color-text-primary);
}

.highlight-item p {
    font-size: var(--font-size-base);
    color: var(--color-text-secondary);
    margin: 0;
}

/* ========================================
   Skills Section
   ======================================== */

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
}

.skill-card {
    padding: var(--spacing-xl);
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border-radius: var(--border-radius-xl);
    border: 1px solid var(--glass-border);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.skill-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition-base);
}

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

.skill-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-2xl);
    border-color: var(--color-primary);
}

.skill-icon {
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    border-radius: var(--border-radius-lg);
    margin-bottom: var(--spacing-lg);
    transition: all var(--transition-bounce);
    box-shadow: var(--shadow-md);
}

.skill-card:hover .skill-icon {
    transform: scale(1.15) rotate(5deg);
    box-shadow: var(--shadow-xl);
}

.skill-icon svg {
    width: 36px;
    height: 36px;
    color: white;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.2));
}

.skill-card h3 {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-primary);
}

.skill-card p {
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-lg);
    font-size: var(--font-size-sm);
    line-height: 1.6;
}

.skill-level {
    width: 100%;
    height: 8px;
    background: var(--color-bg-tertiary);
    border-radius: 999px;
    overflow: hidden;
    position: relative;
}

.skill-bar {
    height: 100%;
    background: var(--gradient-primary);
    width: 0;
    border-radius: 999px;
    transition: width 1.5s cubic-bezier(0.65, 0, 0.35, 1);
    position: relative;
    overflow: hidden;
}

.skill-bar::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    bottom: 0;
    right: 0;
    background: linear-gradient(90deg,
            transparent,
            rgba(255, 255, 255, 0.3),
            transparent);
    animation: shimmer 2s infinite;
}

@keyframes shimmer {
    0% {
        transform: translateX(-100%);
    }

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

/* ========================================
   Projects Section
   ======================================== */

.projects {
    background: transparent;
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(360px, 1fr));
    gap: var(--spacing-2xl);
}

.project-card {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border-radius: var(--border-radius-xl);
    overflow: hidden;
    border: 1px solid var(--glass-border);
    transition: all var(--transition-base);
    display: flex;
    flex-direction: column;
}

.project-card:hover {
    transform: translateY(-12px);
    box-shadow: var(--shadow-2xl);
    border-color: var(--color-primary);
}

.project-image {
    position: relative;
    height: 220px;
    background: var(--gradient-accent);
    overflow: hidden;
}

.project-overlay {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    z-index: 2;
}

.project-tag {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-md);
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    color: var(--color-primary);
    border-radius: var(--border-radius-sm);
    font-size: var(--font-size-xs);
    font-weight: 600;
    border: 1px solid var(--glass-border);
    box-shadow: var(--shadow-md);
}

.project-content {
    padding: var(--spacing-xl);
    flex: 1;
    display: flex;
    flex-direction: column;
}

.project-content h3 {
    font-size: var(--font-size-2xl);
    margin-bottom: var(--spacing-md);
    color: var(--color-text-primary);
}

.project-content p {
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-lg);
    line-height: 1.7;
    flex: 1;
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
}

.project-tech span {
    padding: var(--spacing-xs) var(--spacing-md);
    background: var(--color-bg-tertiary);
    border-radius: var(--border-radius-sm);
    font-size: var(--font-size-xs);
    font-weight: 500;
    color: var(--color-text-secondary);
    border: 1px solid var(--color-border);
    transition: all var(--transition-fast);
}

.project-tech span:hover {
    background: var(--color-primary);
    color: white;
    transform: translateY(-2px);
}

.project-link {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--color-primary);
    font-weight: 600;
    transition: all var(--transition-fast);
}

.project-link:hover {
    gap: var(--spacing-md);
}

.project-link svg {
    width: 20px;
    height: 20px;
    transition: transform var(--transition-fast);
}

.project-link:hover svg {
    transform: translateX(4px);
}

/* ========================================
   Contact Section
   ======================================== */

.contact-content {
    max-width: 700px;
    margin: 0 auto;
}

.contact-lead {
    font-size: var(--font-size-xl);
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-3xl);
    text-align: center;
    line-height: 1.6;
}

.contact-methods {
    margin-bottom: var(--spacing-3xl);
}

.contact-method {
    display: flex;
    align-items: center;
    gap: var(--spacing-xl);
    padding: var(--spacing-xl);
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border-radius: var(--border-radius-xl);
    border: 1px solid var(--glass-border);
    transition: all var(--transition-base);
    text-align: left;
}

.contact-method:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-xl);
    border-color: var(--color-primary);
}

.contact-icon {
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    border-radius: var(--border-radius-lg);
    flex-shrink: 0;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
}

.contact-method:hover .contact-icon {
    transform: scale(1.1) rotate(5deg);
}

.contact-icon svg {
    width: 32px;
    height: 32px;
    color: white;
}

.contact-method h3 {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-xs);
    color: var(--color-text-primary);
}

.contact-method p {
    color: var(--color-text-secondary);
    font-size: var(--font-size-base);
}

.social-links {
    display: flex;
    justify-content: center;
    gap: var(--spacing-lg);
}

.social-link {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius-lg);
    transition: all var(--transition-base);
}

.social-link:hover {
    background: var(--gradient-primary);
    border-color: transparent;
    transform: translateY(-6px) scale(1.1);
    box-shadow: var(--shadow-xl);
}

.social-link svg {
    width: 28px;
    height: 28px;
    color: var(--color-text-primary);
    transition: color var(--transition-fast);
}

.social-link:hover svg {
    color: white;
}

/* ========================================
   Footer
   ======================================== */

.footer {
    padding: var(--spacing-3xl) 0;
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border-top: 1px solid var(--glass-border);
    text-align: center;
    margin-top: var(--spacing-5xl);
}

.footer p {
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
    line-height: 1.8;
}

.footer-note {
    margin-top: var(--spacing-sm);
    font-size: var(--font-size-xs);
}

/* ========================================
   Scroll Progress Bar
   ======================================== */

.scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    width: 0%;
    height: 3px;
    background: var(--gradient-primary);
    z-index: 9999;
    transition: width 0.1s ease-out;
}

/* ========================================
   Responsive Design
   ======================================== */

@media (max-width: 968px) {
    :root {
        --font-size-5xl: 2.5rem;
        --font-size-4xl: 2rem;
    }

    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: var(--spacing-3xl);
    }

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

    .hero-image {
        order: -1;
    }

    .profile-avatar {
        width: 280px;
        height: 280px;
    }

    section {
        padding: var(--spacing-4xl) 0;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 73px;
        left: 0;
        right: 0;
        flex-direction: column;
        background: var(--glass-bg);
        backdrop-filter: blur(20px);
        border-bottom: 1px solid var(--glass-border);
        padding: var(--spacing-lg);
        gap: var(--spacing-md);
        transform: translateY(-100%);
        opacity: 0;
        transition: all var(--transition-base);
        box-shadow: var(--shadow-xl);
    }

    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
    }

    .mobile-menu-toggle {
        display: flex;
    }

    .mobile-menu-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(7px, 7px);
    }

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

    .mobile-menu-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -7px);
    }

    .section-title {
        font-size: var(--font-size-3xl);
        margin-bottom: var(--spacing-2xl);
    }

    .hero {
        min-height: auto;
        padding-top: 100px;
        padding-bottom: var(--spacing-4xl);
    }

    .profile-avatar {
        width: 240px;
        height: 240px;
    }

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

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

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

    .hero-buttons {
        flex-direction: column;
        width: 100%;
    }

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

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

    .greeting {
        font-size: var(--font-size-lg);
    }

    .hero-subtitle {
        font-size: var(--font-size-base);
    }

    .profile-avatar {
        width: 200px;
        height: 200px;
    }
}

/* ========================================
   Print Styles
   ======================================== */

@media print {

    .navbar,
    .scroll-indicator,
    .scroll-progress,
    .theme-toggle,
    .mobile-menu-toggle {
        display: none;
    }

    body {
        background: white;
    }

    .glass,
    .glass-strong {
        background: white;
        border: 1px solid #ddd;
    }
}
/* ========================================
   Education & Certifications Section
   ======================================== */

.education-grid {
    display: grid;
    gap: var(--spacing-2xl);
}

.education-card {
    display: flex;
    gap: var(--spacing-xl);
    padding: var(--spacing-2xl);
    border-radius: var(--border-radius-xl);
    transition: all var(--transition-base);
}

.education-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-2xl);
}

.education-icon {
    font-size: 4rem;
    flex-shrink: 0;
}

.education-content h3 {
    font-size: var(--font-size-2xl);
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-primary);
}

.education-institution {
    font-size: var(--font-size-lg);
    color: var(--color-primary);
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.education-date {
    font-size: var(--font-size-sm);
    color: var(--color-text-tertiary);
    margin-bottom: var(--spacing-md);
}

.education-description {
    color: var(--color-text-secondary);
    line-height: 1.7;
}

.cert-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.cert-card {
    padding: var(--spacing-xl);
    border-radius: var(--border-radius-lg);
    text-align: center;
    transition: all var(--transition-base);
}

.cert-card:hover {
    transform: translateY(-8px) scale(1.05);
    box-shadow: var(--shadow-xl);
    border-color: var(--color-primary);
}

.cert-badge {
    width: 64px;
    height: 64px;
    margin: 0 auto var(--spacing-md);
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
}

.cert-badge svg {
    width: 32px;
    height: 32px;
    color: white;
}

.cert-card h4 {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-xs);
    color: var(--color-text-primary);
}

.cert-card p {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

/* ========================================
   Experience Timeline Section
   ======================================== */

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

.timeline::before {
    content: '';
    position: absolute;
    left: 30px;
    top: 0;
    bottom: 0;
    width: 3px;
    background: var(--gradient-primary);
    border-radius: 2px;
}

.timeline-item {
    position: relative;
    padding: var(--spacing-2xl);
    padding-left: calc(var(--spacing-2xl) + 60px);
    margin-bottom: var(--spacing-2xl);
    border-radius: var(--border-radius-xl);
    transition: all var(--transition-base);
}

.timeline-item:hover {
    transform: translateX(10px);
    box-shadow: var(--shadow-xl);
}

.timeline-marker {
    position: absolute;
    left: 18px;
    top: var(--spacing-2xl);
    width: 24px;
    height: 24px;
    background: var(--gradient-primary);
    border-radius: 50%;
    border: 4px solid var(--color-bg-primary);
    box-shadow: 0 0 0 4px var(--glass-border);
    z-index: 2;
}

.timeline-date {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-md);
    background: var(--gradient-primary);
    color: white;
    border-radius: var(--border-radius-sm);
    font-size: var(--font-size-sm);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
}

.timeline-content h3 {
    font-size: var(--font-size-2xl);
    margin-bottom: var(--spacing-xs);
    color: var(--color-text-primary);
}

.timeline-company {
    font-size: var(--font-size-lg);
    color: var(--color-primary);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
}

.timeline-responsibilities {
    list-style: none;
    padding: 0;
}

.timeline-responsibilities li {
    position: relative;
    padding-left: var(--spacing-xl);
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-secondary);
    line-height: 1.6;
}

.timeline-responsibilities li::before {
    content: '';
    position: absolute;
    left: 0;
    color: var(--color-primary);
    font-weight: bold;
}

/* ========================================
   Tools & Software Section
   ======================================== */

.tools-categories {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-xl);
}

.tool-category {
    padding: var(--spacing-xl);
    border-radius: var(--border-radius-xl);
    transition: all var(--transition-base);
}

.tool-category:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: var(--color-primary);
}

.tool-category h3 {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-lg);
    color: var(--color-text-primary);
}

.tool-category h3 svg {
    width: 28px;
    height: 28px;
    color: var(--color-primary);
}

.tool-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.tool-tags span {
    padding: var(--spacing-xs) var(--spacing-md);
    background: var(--color-bg-tertiary);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-sm);
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--color-text-secondary);
    transition: all var(--transition-fast);
}

.tool-tags span:hover {
    background: var(--gradient-primary);
    color: white;
    border-color: transparent;
    transform: translateY(-2px);
}

/* ========================================
   Testimonials Section
   ======================================== */

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: var(--spacing-2xl);
}

.testimonial-card {
    padding: var(--spacing-2xl);
    border-radius: var(--border-radius-xl);
    transition: all var(--transition-base);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
}

.testimonial-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-2xl);
    border-color: var(--color-primary);
}

.testimonial-content {
    position: relative;
    flex: 1;
}

.quote-icon {
    font-size: 4rem;
    line-height: 1;
    color: var(--color-primary);
    opacity: 0.3;
    font-family: Georgia, serif;
    margin-bottom: var(--spacing-sm);
}

.testimonial-text {
    font-size: var(--font-size-lg);
    line-height: 1.7;
    color: var(--color-text-secondary);
    font-style: italic;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--color-border);
}

.author-avatar {
    width: 56px;
    height: 56px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.author-avatar svg {
    width: 28px;
    height: 28px;
    color: white;
}

.author-info h4 {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-xs);
    color: var(--color-text-primary);
}

.author-info p {
    font-size: var(--font-size-sm);
    color: var(--color-text-tertiary);
}

/* ========================================
   Contact Form Section
   ======================================== */

.contact-form-section {
    background: transparent;
}

.contact-form-wrapper {
    max-width: 700px;
    margin: 0 auto;
    padding: var(--spacing-3xl);
    border-radius: var(--border-radius-2xl);
}

.contact-form-wrapper h3 {
    font-size: var(--font-size-3xl);
    text-align: center;
    margin-bottom: var(--spacing-2xl);
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.form-group label {
    font-weight: 600;
    color: var(--color-text-primary);
    font-size: var(--font-size-sm);
}

.form-group input,
.form-group textarea {
    padding: var(--spacing-md);
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-md);
    font-family: var(--font-primary);
    font-size: var(--font-size-base);
    color: var(--color-text-primary);
    transition: all var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px hsla(210, 100%, 50%, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.contact-form .btn {
    margin-top: var(--spacing-md);
    justify-content: center;
}

/* ========================================
   Responsive Updates for New Sections
   ======================================== */

@media (max-width: 768px) {
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .timeline::before {
        left: 15px;
    }
    
    .timeline-item {
        padding-left: calc(var(--spacing-xl) + 30px);
    }
    
    .timeline-marker {
        left: 6px;
    }
    
    .cert-grid {
        grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    }
    
    .tools-categories {
        grid-template-columns: 1fr;
    }
    
    .testimonials-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .education-card {
        flex-direction: column;
        text-align: center;
    }
    
    .contact-form-wrapper {
        padding: var(--spacing-xl);
    }
}

/* Corrected Dark Mode UI fixes */
[data-theme="dark"] body {
    background-color: var(--color-bg-primary);
    color: var(--color-text-primary);
}

[data-theme="dark"] .navbar {
    background: var(--glass-bg);
}

[data-theme="dark"] .btn-secondary {
    background: var(--glass-bg);
    color: var(--color-text-primary);
}