/* ========================================
   MODERN PORTFOLIO CSS - ENHANCED VERSION
   ======================================== */

/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Modern Color Palette */
    --primary-color: #6366f1;
    --primary-dark: #4f46e5;
    --primary-light: #818cf8;
    --secondary-color: #ec4899;
    --accent-color: #f59e0b;
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-light: #64748b;
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-dark: #1e293b;
    --bg-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --bg-gradient-alt: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --border-color: #e2e8f0;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-secondary: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --gradient-accent: linear-gradient(135deg, #fa709a 0%, #fee140 100%);
}

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

body {
    font-family: 'Inter', 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ========================================
   LOADING SCREEN
   ======================================== */
.loader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

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

.loader-content {
    text-align: center;
    color: white;
}

.loader-spinner {
    width: 50px;
    height: 50px;
    border: 4px solid rgba(255, 255, 255, 0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 1rem;
}

.loader-content p {
    font-size: 1.1rem;
    font-weight: 500;
}

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

/* ========================================
   NAVIGATION
   ======================================== */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    z-index: 1000;
    padding: 1rem 0;
    transition: all 0.3s ease;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.95);
    box-shadow: var(--shadow-md);
    padding: 0.75rem 0;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo a {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    text-decoration: none;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    transition: transform 0.3s ease;
}

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

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

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
    align-items: center;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    transition: all 0.3s ease;
    position: relative;
    padding: 0.5rem 0;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: width 0.3s ease;
}

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

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

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    padding: 8px;
    gap: 5px;
    background: transparent;
    border: none;
    z-index: 1001;
}

.bar {
    width: 28px;
    height: 3px;
    background: var(--primary-color);
    border-radius: 2px;
    transition: all 0.3s ease;
}

.hamburger.active .bar:nth-child(1) {
    transform: rotate(45deg) translate(8px, 8px);
}

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

.hamburger.active .bar:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
}

/* ========================================
   HERO SECTION
   ======================================== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    padding-top: 80px;
    background: linear-gradient(135deg, #1e3a8a 0%, #3b82f6 50%, #60a5fa 100%);
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    z-index: 0;
}

.gradient-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.3;
    animation: float 20s ease-in-out infinite;
}

.orb-1 {
    width: 500px;
    height: 500px;
    background: #3b82f6;
    top: -200px;
    right: -200px;
    animation-delay: 0s;
}

.orb-2 {
    width: 400px;
    height: 400px;
    background: #1e3a8a;
    bottom: -150px;
    left: -150px;
    animation-delay: 5s;
}

.orb-3 {
    width: 300px;
    height: 300px;
    background: #60a5fa;
    top: 50%;
    left: 50%;
    animation-delay: 10s;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 4rem;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-content {
    color: white;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    padding: 0.5rem 1rem;
    border-radius: 50px;
    font-size: 0.9rem;
    margin-bottom: 1.5rem;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.hero-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 1rem;
    color: white;
}

.title-name {
    display: inline-block;
    background: linear-gradient(135deg, #fbbf24 0%, #f59e0b 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle-wrapper {
    margin-bottom: 1.5rem;
}

.hero-subtitle {
    font-size: clamp(1.25rem, 2vw, 1.5rem);
    font-weight: 400;
    opacity: 0.9;
    line-height: 1.4;
}

.hero-description {
    font-size: 1.1rem;
    line-height: 1.7;
    opacity: 0.85;
    margin-bottom: 2rem;
    max-width: 600px;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    margin-bottom: 3rem;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 14px 28px;
    border-radius: 12px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1rem;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

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

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.3);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.25);
    transform: translateY(-2px);
}

.btn-icon {
    width: 50px;
    height: 50px;
    padding: 0;
    justify-content: center;
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.3);
}

.btn-icon:hover {
    background: rgba(255, 255, 255, 0.25);
    transform: translateY(-2px) rotate(5deg);
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-top: 2rem;
}

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

.stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    background: linear-gradient(135deg, #fff 0%, #fbbf24 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 0.9rem;
    opacity: 0.8;
}

/* Hero Image */
.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.profile-card {
    position: relative;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(20px);
    border-radius: 24px;
    padding: 3rem 2rem;
    text-align: center;
    border: 1px solid rgba(255, 255, 255, 0.2);
    width: 100%;
    max-width: 400px;
    box-shadow: var(--shadow-2xl);
    animation: float 6s ease-in-out infinite;
}

.profile-gradient {
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
    animation: rotate 20s linear infinite;
}

.profile-avatar {
    position: relative;
    z-index: 1;
    margin-bottom: 1.5rem;
}

.avatar-circle {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto;
    border: 3px solid rgba(255, 255, 255, 0.3);
    overflow: hidden;
    position: relative;
}

.profile-photo {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 50%;
}

.profile-info {
    position: relative;
    z-index: 1;
}

.profile-info h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    color: white;
}

.profile-info p {
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 1.5rem;
}

.profile-links {
    display: flex;
    justify-content: center;
    gap: 1rem;
}

.social-link {
    width: 45px;
    height: 45px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    text-decoration: none;
    transition: all 0.3s ease;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.social-link:hover {
    background: rgba(255, 255, 255, 0.25);
    transform: translateY(-3px) scale(1.1);
}

.btn-download-cv {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    margin-top: 1rem;
    padding: 0.75rem 1.5rem;
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    color: white;
    text-decoration: none;
    border-radius: 12px;
    font-weight: 600;
    font-size: 0.9rem;
    border: 1px solid rgba(255, 255, 255, 0.3);
    transition: all 0.3s ease;
    width: 100%;
    cursor: pointer;
}

.btn-download-cv:hover {
    background: rgba(255, 255, 255, 0.25);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
    border-color: rgba(255, 255, 255, 0.5);
}

.btn-download-cv i {
    font-size: 1rem;
}

.btn-download-cv span {
    white-space: nowrap;
}

.btn-outline {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.3);
}

.btn-outline:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.5);
}

.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    color: white;
    opacity: 0.7;
    animation: bounce 2s infinite;
    z-index: 1;
}

.scroll-indicator i {
    font-size: 1.2rem;
}

/* ========================================
   SECTION STYLES
   ======================================== */
section {
    padding: 6rem 0;
    position: relative;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-tag {
    display: inline-block;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 600;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 0.5rem;
}

.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* ========================================
   ABOUT SECTION
   ======================================== */
.about {
    background: var(--bg-secondary);
}

.about-content {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-intro p {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

.about-intro strong {
    color: var(--primary-color);
    font-weight: 600;
}

.about-highlights {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    margin-top: 2rem;
}

.highlight-item {
    display: flex;
    gap: 1.5rem;
    align-items: flex-start;
}

.highlight-icon {
    width: 50px;
    height: 50px;
    border-radius: 12px;
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.2rem;
    flex-shrink: 0;
}

.highlight-content h4 {
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.highlight-content p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.6;
}

.about-visual {
    position: relative;
    height: 400px;
}

.floating-card {
    position: absolute;
    background: white;
    padding: 1.5rem;
    border-radius: 16px;
    box-shadow: var(--shadow-lg);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    font-weight: 600;
    color: var(--text-primary);
    width: 140px;
    animation: float 6s ease-in-out infinite;
}

.card-1 {
    top: 20%;
    left: 10%;
    animation-delay: 0s;
}

.card-2 {
    top: 50%;
    right: 10%;
    animation-delay: 2s;
}

.card-3 {
    bottom: 10%;
    left: 30%;
    animation-delay: 4s;
}

.floating-card i {
    font-size: 2rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ========================================
   SKILLS SECTION
   ======================================== */
.skills {
    background: white;
}

.skills-tabs {
    background: white;
    border-radius: 20px;
    padding: 1.5rem;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-md);
    max-width: 1050px;
    margin: 0 auto;
}

.skills-tab-list {
    display: grid;
    grid-template-columns: repeat(6, minmax(0, 1fr));
    gap: 0.75rem;
    margin-bottom: 1.5rem;
}

.skill-tab {
    border: 1px solid var(--border-color);
    background: var(--bg-secondary);
    color: var(--text-secondary);
    border-radius: 12px;
    padding: 0.85rem 0.65rem;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    font-size: 0.9rem;
    font-weight: 700;
    transition: all 0.3s ease;
}

.skill-tab:hover {
    color: var(--primary-color);
    border-color: var(--primary-light);
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
}

.skill-tab.active {
    background: var(--gradient-primary);
    color: white;
    border-color: transparent;
    box-shadow: var(--shadow-md);
}

.skills-panel {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 1.75rem;
    animation: fadeInUp 0.35s ease;
}

.skills-panel[hidden] {
    display: none;
}

.skill-category-header {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.skill-icon {
    width: 45px;
    height: 45px;
    border-radius: 12px;
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.2rem;
}

.skill-category-header h3 {
    font-size: 1.2rem;
    color: var(--text-primary);
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.skill-category-header p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.5;
}

.skill-items {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.skill-item {
    background: var(--bg-secondary);
    color: var(--text-primary);
    padding: 0.6rem 1.2rem;
    border-radius: 8px;
    font-size: 0.9rem;
    font-weight: 500;
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
    cursor: default;
}

.skill-item:hover {
    background: var(--gradient-primary);
    color: white;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    border-color: transparent;
}

/* ========================================
   EXPERIENCE SECTION
   ======================================== */
.experience {
    background: var(--bg-secondary);
}

.experience-tabs {
    display: grid;
    grid-template-columns: minmax(280px, 0.8fr) minmax(0, 1.4fr);
    gap: 2rem;
    align-items: start;
    max-width: 1100px;
    margin: 0 auto;
}

.experience-list {
    display: flex;
    flex-direction: column;
    gap: 0.85rem;
}

.experience-tab {
    width: 100%;
    border: 1px solid var(--border-color);
    background: white;
    border-radius: 14px;
    padding: 1rem;
    text-align: left;
    cursor: pointer;
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
    border-left: 4px solid transparent;
}

.experience-tab:hover {
    transform: translateX(6px);
    box-shadow: var(--shadow-md);
    border-color: var(--primary-light);
    border-left-color: var(--primary-light);
}

.experience-tab.active {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1), rgba(236, 72, 153, 0.08));
    border-color: rgba(99, 102, 241, 0.35);
    border-left-color: var(--primary-color);
    box-shadow: var(--shadow-lg);
}

.experience-company,
.experience-role,
.experience-period {
    display: block;
}

.experience-company {
    color: var(--text-primary);
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 0.25rem;
}

.experience-role {
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 0.35rem;
}

.experience-period {
    color: var(--text-light);
    font-size: 0.85rem;
}

.experience-details {
    min-height: 430px;
}

.experience-panel {
    background: white;
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 2rem;
    box-shadow: var(--shadow-lg);
    animation: fadeInUp 0.35s ease;
}

.experience-panel[hidden] {
    display: none;
}

.experience-panel h3 {
    color: var(--primary-color);
    font-size: 1.65rem;
    margin: 1rem 0 0.5rem;
}

.experience-panel-header {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem 1rem;
    align-items: center;
}

.company {
    font-weight: 600;
    color: var(--text-primary);
    font-size: 1.1rem;
}

.period {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.location.badge {
    background: var(--bg-secondary);
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.experience-description {
    list-style: none;
    margin-top: 1rem;
}

.experience-description li {
    padding: 0.75rem 0;
    padding-left: 2rem;
    position: relative;
    color: var(--text-secondary);
    line-height: 1.7;
    border-bottom: 1px solid var(--border-color);
}

.experience-description li:last-child {
    border-bottom: none;
}

.experience-description li i {
    position: absolute;
    left: 0;
    color: var(--primary-color);
    top: 0.9rem;
}

/* ========================================
   PROJECTS SECTION
   ======================================== */
.projects {
    background: var(--bg-secondary);
    position: relative;
}

.project-filters {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin: -1.5rem 0 2.5rem;
}

.project-filter-btn {
    border: 1px solid var(--border-color);
    background: white;
    color: var(--text-secondary);
    border-radius: 999px;
    padding: 0.7rem 1.2rem;
    font-size: 0.95rem;
    font-weight: 700;
    cursor: pointer;
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
}

.project-filter-btn:hover {
    color: var(--primary-color);
    border-color: var(--primary-light);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.project-filter-btn.active {
    background: var(--gradient-primary);
    color: white;
    border-color: transparent;
    box-shadow: var(--shadow-lg);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 1.5rem;
}

.project-card {
    background: white;
    border-radius: 24px;
    overflow: hidden;
    border: 1px solid var(--border-color);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow-md);
}

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

.project-card.featured {
    border: 2px solid var(--primary-color);
    box-shadow: var(--shadow-lg);
}

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

.project-card.featured:hover {
    box-shadow: 0 25px 50px -12px rgba(99, 102, 241, 0.3);
}

.project-image {
    position: relative;
    height: 150px;
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.project-card:nth-child(1) .project-image {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.project-card:nth-child(2) .project-image {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
}

.project-card:nth-child(3) .project-image {
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
}

.project-card:nth-child(4) .project-image {
    background: linear-gradient(135deg, #43e97b 0%, #38f9d7 100%);
}

.project-card:nth-child(5) .project-image {
    background: linear-gradient(135deg, #fa709a 0%, #fee140 100%);
}

.project-card:nth-child(6) .project-image {
    background: linear-gradient(135deg, #0f766e 0%, #14b8a6 100%);
}

.project-card:nth-child(7) .project-image {
    background: linear-gradient(135deg, #f97316 0%, #facc15 100%);
}

.project-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.1);
    opacity: 0;
    transition: opacity 0.3s ease;
}

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

.project-icon-large {
    font-size: 3rem;
    color: white;
    z-index: 1;
    position: relative;
    transition: transform 0.3s ease;
}

.project-card:hover .project-icon-large {
    transform: scale(1.1) rotate(5deg);
}

.project-badge {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    padding: 0.4rem 1rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--primary-color);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    z-index: 2;
    box-shadow: var(--shadow-sm);
}

.project-content {
    padding: 1.4rem;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.project-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 0.75rem;
    gap: 1rem;
}

.project-header h3 {
    font-size: 1.25rem;
    color: var(--text-primary);
    font-weight: 700;
    margin: 0;
    flex: 1;
}

.project-header h3 a {
    color: inherit;
    text-decoration: none;
    transition: color 0.3s ease;
    display: block;
}

.project-header h3 a:hover {
    color: var(--primary-color);
}

.project-external-link {
    width: 36px;
    height: 36px;
    border-radius: 8px;
    background: var(--bg-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    text-decoration: none;
    transition: all 0.3s ease;
    flex-shrink: 0;
}

.project-external-link:hover {
    background: var(--primary-color);
    color: white;
    transform: rotate(45deg) scale(1.1);
}

.project-description {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 1rem;
    flex-grow: 1;
    font-size: 0.95rem;
}

.project-features {
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem;
    margin-bottom: 1rem;
}

.feature {
    background: var(--bg-secondary);
    color: var(--text-primary);
    padding: 0.4rem 0.75rem;
    border-radius: 8px;
    font-size: 0.8rem;
    font-weight: 500;
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

.feature:hover {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
    transform: translateY(-2px);
}

.project-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    margin-top: auto;
    padding-top: 1rem;
    border-top: 1px solid var(--border-color);
    flex-wrap: wrap;
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    flex: 1;
}

.tech {
    background: var(--gradient-primary);
    color: white;
    padding: 0.35rem 0.75rem;
    border-radius: 8px;
    font-size: 0.8rem;
    font-weight: 600;
    transition: transform 0.3s ease;
}

.tech:hover {
    transform: translateY(-2px) scale(1.05);
}

.project-links {
    display: flex;
    gap: 0.75rem;
    align-items: center;
    flex-wrap: wrap;
}

.project-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.9rem;
    transition: all 0.3s ease;
    padding: 0.6rem 1.2rem;
    border-radius: 8px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    white-space: nowrap;
}

.project-link:hover {
    gap: 0.75rem;
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.project-link i {
    font-size: 0.85rem;
}

/* ========================================
   EDUCATION SECTION
   ======================================== */
.education {
    background: var(--bg-secondary);
}

.education-content {
    max-width: 980px;
    margin: 0 auto;
}

.education-summary-card {
    background: white;
    padding: 2rem;
    border-radius: 20px;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
}

.education-summary-card:hover {
    box-shadow: var(--shadow-xl);
}

.education-summary-block {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
}

.education-icon {
    width: 52px;
    height: 52px;
    border-radius: 16px;
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.35rem;
    flex-shrink: 0;
}

.education-details h3 {
    font-size: 1.25rem;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.degree {
    font-weight: 600;
    color: var(--primary-color);
    font-size: 1rem;
    margin-bottom: 0.5rem;
    display: block;
}

.institution,
.period {
    color: var(--text-secondary);
    margin-bottom: 0.35rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.languages-icon {
    width: 52px;
    height: 52px;
    border-radius: 16px;
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.3rem;
    flex-shrink: 0;
}

.languages-compact {
    width: 100%;
}

.languages-compact h3 {
    font-size: 1.25rem;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.language-items {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.language-item {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.language-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.language-name {
    font-weight: 600;
    color: var(--text-primary);
}

.language-level {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.language-bar {
    height: 8px;
    background: var(--bg-secondary);
    border-radius: 4px;
    overflow: hidden;
}

.language-progress {
    height: 100%;
    background: var(--gradient-primary);
    border-radius: 4px;
    transition: width 1s ease;
}

/* ========================================
   CONTACT SECTION
   ======================================== */
.contact {
    background: linear-gradient(135deg, #1e3a8a 0%, #3b82f6 100%);
    color: white;
    position: relative;
    overflow: hidden;
}

.contact-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
}

.contact-gradient-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(100px);
    opacity: 0.2;
    animation: float 25s ease-in-out infinite;
}

.contact-gradient-orb.orb-1 {
    width: 600px;
    height: 600px;
    background: #f093fb;
    top: -300px;
    right: -300px;
}

.contact-gradient-orb.orb-2 {
    width: 500px;
    height: 500px;
    background: #fee140;
    bottom: -250px;
    left: -250px;
}

.contact .section-header {
    position: relative;
    z-index: 1;
}

.contact .section-tag {
    background: linear-gradient(135deg, #fff 0%, #fbbf24 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.contact .section-title,
.contact .section-subtitle {
    color: white;
}

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

.contact-panel {
    display: grid;
    grid-template-columns: minmax(0, 1.2fr) minmax(300px, 0.8fr);
    gap: 2rem;
    align-items: stretch;
    max-width: 1050px;
    margin: 0 auto;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 22px;
    padding: 2rem;
    box-shadow: var(--shadow-2xl);
}

.contact-cta {
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.contact-status {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    width: fit-content;
    background: rgba(255, 255, 255, 0.15);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 999px;
    padding: 0.45rem 0.85rem;
    font-size: 0.85rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.contact-status i {
    color: #22c55e;
    font-size: 0.65rem;
}

.contact-cta h3 {
    color: white;
    font-size: clamp(1.5rem, 3vw, 2.2rem);
    line-height: 1.25;
    margin-bottom: 1rem;
}

.contact-cta p {
    color: rgba(255, 255, 255, 0.86);
    line-height: 1.7;
    max-width: 620px;
    margin-bottom: 1.5rem;
}

.contact-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
}

.contact-methods {
    display: flex;
    flex-direction: column;
    gap: 0.85rem;
}

.contact-method {
    display: flex;
    align-items: center;
    gap: 0.85rem;
    background: rgba(255, 255, 255, 0.12);
    border: 1px solid rgba(255, 255, 255, 0.18);
    border-radius: 14px;
    padding: 1rem;
    text-decoration: none;
    color: white;
    transition: all 0.3s ease;
}

.contact-method:hover {
    background: rgba(255, 255, 255, 0.18);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.contact-method-icon {
    width: 42px;
    height: 42px;
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.18);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.contact-method strong,
.contact-method small {
    display: block;
}

.contact-method strong {
    color: white;
    font-size: 0.95rem;
    margin-bottom: 0.15rem;
}

.contact-method small {
    color: rgba(255, 255, 255, 0.78);
    font-size: 0.85rem;
    overflow-wrap: anywhere;
}

.contact-socials {
    display: flex;
    gap: 0.75rem;
    padding-top: 0.25rem;
}

/* ========================================
   FOOTER
   ======================================== */
.footer {
    background: var(--bg-dark);
    color: white;
    padding: 2.5rem 0;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.footer-links {
    display: flex;
    gap: 2rem;
    flex-wrap: wrap;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: white;
}

/* ========================================
   BACK TO TOP BUTTON
   ======================================== */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--gradient-primary);
    color: white;
    border: none;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 1000;
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    transform: translateY(-5px) scale(1.1);
    box-shadow: var(--shadow-xl);
}

/* ========================================
   ANIMATIONS
   ======================================== */
@keyframes float {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-20px);
    }
}

@keyframes bounce {
    0%, 100% {
        transform: translateX(-50%) translateY(0);
    }
    50% {
        transform: translateX(-50%) translateY(-10px);
    }
}

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

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

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

/* ========================================
   RESPONSIVE DESIGN
   ======================================== */
@media (max-width: 1024px) {
    .hero-container {
        gap: 3rem;
    }

    .about-content {
        gap: 3rem;
    }
}

@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(20px);
        width: 100%;
        padding: 2rem 0;
        transition: all 0.4s ease;
        box-shadow: var(--shadow-lg);
        border-bottom: 1px solid var(--border-color);
    }

    .nav-menu.active {
        left: 0;
    }

    .nav-menu .nav-link {
        padding: 1rem 2rem;
        display: block;
    }

    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 3rem;
    }

    .hero-stats {
        grid-template-columns: repeat(3, 1fr);
        gap: 1rem;
    }

    .about-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .about-visual {
        height: 300px;
    }

    .floating-card {
        width: 120px;
        padding: 1rem;
    }

    .skills-tab-list {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }

    .skill-tab {
        flex-direction: column;
        gap: 0.35rem;
    }

    .experience-tabs {
        grid-template-columns: 1fr;
        gap: 1.25rem;
    }

    .experience-list {
        display: grid;
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .experience-tab:hover {
        transform: translateY(-3px);
    }

    .experience-details {
        min-height: auto;
    }

    .projects-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .project-footer {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }
    
    .project-links {
        width: 100%;
    }
    
    .project-link {
        width: 100%;
        justify-content: center;
    }

    .education-summary-card {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .contact-panel {
        grid-template-columns: 1fr;
        padding: 1.5rem;
    }

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

    .back-to-top {
        bottom: 20px;
        right: 20px;
        width: 45px;
        height: 45px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }

    .hero {
        padding-top: 70px;
    }

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

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

    .hero-stats {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .skills-tabs {
        padding: 1rem;
    }

    .skills-tab-list {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .skills-panel {
        padding: 1.25rem;
    }

    .skill-category-header {
        flex-direction: column;
    }

    .section-title {
        font-size: 1.75rem;
    }

    .project-card {
        border-radius: 16px;
    }

    .experience-list {
        grid-template-columns: 1fr;
    }

    .experience-panel {
        padding: 1.5rem;
        border-radius: 16px;
    }

    .experience-panel h3 {
        font-size: 1.35rem;
    }
    
    .project-image {
        height: 140px;
    }
    
    .project-icon-large {
        font-size: 3rem;
    }
    
    .project-content {
        padding: 1.5rem;
    }
    
    .project-header h3 {
        font-size: 1.25rem;
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .education-summary-card {
        padding: 1.5rem;
    }

    .education-summary-block {
        flex-direction: column;
    }

    .contact-panel {
        padding: 1.25rem;
    }

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

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

/* Print Styles */
@media print {
    .navbar,
    .hamburger,
    .back-to-top,
    .loader {
        display: none;
    }

    .hero {
        min-height: auto;
        padding: 2rem 0;
    }

    section {
        padding: 2rem 0;
        page-break-inside: avoid;
    }
}