/* ===== RESET & BASE STYLES ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --secondary: #8b5cf6;
    --accent: #06d6a0;
    --accent-dark: #059669;
    --dark: #1e293b;
    --dark-light: #334155;
    --light: #f8fafc;
    --white: #ffffff;
    --gray-100: #f1f5f9;
    --gray-200: #e2e8f0;
    --gray-300: #cbd5e1;
    --gray-400: #94a3b8;
    --gray-500: #64748b;
    --gray-600: #475569;
    --gray-700: #334155;
    --gray-800: #1e293b;
    --gray-900: #0f172a;
    --gradient: linear-gradient(135deg, #6366f1 0%, #8b5cf6 50%, #06d6a0 100%);
    --gradient-hover: linear-gradient(135deg, #4f46e5 0%, #7c3aed 50%, #059669 100%);
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow: 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);
    --border-radius: 0.5rem;
    --border-radius-lg: 1rem;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: var(--gray-800);
    background: var(--light);
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* ===== TYPOGRAPHY ===== */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
}

h1 { font-size: 3.5rem; }
h2 { font-size: 2.5rem; }
h3 { font-size: 2rem; }
h4 { font-size: 1.5rem; }
h5 { font-size: 1.25rem; }
h6 { font-size: 1rem; }

p {
    margin-bottom: 1rem;
    color: var(--gray-600);
}

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

a:hover {
    color: var(--primary-dark);
}

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

.section-title {
    text-align: center;
    margin-bottom: 3rem;
    position: relative;
    font-size: 2.5rem;
    color: var(--dark);
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -0.5rem;
    left: 50%;
    transform: translateX(-50%);
    width: 4rem;
    height: 0.25rem;
    background: var(--gradient);
    border-radius: 0.125rem;
}

.section-subtitle {
    text-align: center;
    font-size: 1.25rem;
    color: var(--gray-600);
    margin-bottom: 3rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* ===== BUTTONS ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.875rem 2rem;
    border-radius: var(--border-radius);
    font-weight: 600;
    font-size: 1rem;
    transition: var(--transition);
    cursor: pointer;
    border: none;
    text-decoration: none;
    gap: 0.5rem;
}

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

.btn-primary:hover {
    background: var(--gradient-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    color: var(--white);
}

.btn-secondary {
    background: var(--white);
    color: var(--primary);
    border: 2px solid var(--primary);
}

.btn-secondary:hover {
    background: var(--primary);
    color: var(--white);
}

.btn-outline {
    background: transparent;
    color: var(--gray-700);
    border: 2px solid var(--gray-300);
}

.btn-outline:hover {
    background: var(--gray-100);
    border-color: var(--gray-400);
}

.btn-action {
    width: 3rem;
    height: 3rem;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.9);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    backdrop-filter: blur(10px);
}

.btn-action:hover {
    background: var(--primary);
    color: var(--white);
    transform: scale(1.1);
}

/* ===== NAVIGATION ===== */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--gray-200);
    z-index: 1000;
    padding: 1rem 0;
    transition: var(--transition);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

.nav-link {
    color: var(--gray-700);
    font-weight: 500;
    position: relative;
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -0.5rem;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: var(--transition);
}

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

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--gray-700);
    cursor: pointer;
}

/* ===== HERO SECTION ===== */
.hero-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    background: linear-gradient(135deg, var(--light) 0%, var(--gray-100) 100%);
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('data:image/svg+xml,<svg width="60" height="60" viewBox="0 0 60 60" xmlns="http://www.w3.org/2000/svg"><g fill="none" fill-rule="evenodd"><g fill="%236366f1" fill-opacity="0.05"><circle cx="30" cy="30" r="4"/></g></svg>');
    z-index: -1;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    padding: 6rem 0;
}

.hero-tag {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: rgba(99, 102, 241, 0.1);
    color: var(--primary);
    border-radius: 2rem;
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    color: var(--dark);
}

.hero-description {
    font-size: 1.25rem;
    color: var(--gray-600);
    margin-bottom: 2rem;
    line-height: 1.7;
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
    margin: 3rem 0;
    padding: 2rem;
    background: var(--white);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow);
}

.stat {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 2rem;
    font-weight: 800;
    color: var(--primary);
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--gray-600);
    font-weight: 500;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.hero-links {
    display: flex;
    gap: 1rem;
}

.hero-links a {
    width: 3rem;
    height: 3rem;
    border-radius: 50%;
    background: var(--white);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.hero-links a:hover {
    background: var(--primary);
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

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

.floating-card {
    position: absolute;
    padding: 1.5rem;
    background: var(--white);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    animation: float 6s ease-in-out infinite;
    backdrop-filter: blur(10px);
}

.floating-card i {
    font-size: 2rem;
    color: var(--primary);
}

.floating-card span {
    font-weight: 600;
    color: var(--gray-700);
    font-size: 0.875rem;
    text-align: center;
}

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

.card-2 {
    top: 100px;
    right: 20px;
    animation-delay: 1s;
}

.card-3 {
    bottom: 120px;
    left: 50px;
    animation-delay: 2s;
}

.card-4 {
    bottom: 20px;
    right: 50px;
    animation-delay: 3s;
}

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

/* ===== ABOUT SECTION ===== */
.about-section {
    padding: 6rem 0;
    background: var(--white);
}

.about-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 4rem;
    align-items: start;
}

.about-text h3 {
    color: var(--dark);
    margin-bottom: 1.5rem;
    font-size: 1.75rem;
}

.about-text h4 {
    color: var(--primary);
    margin-top: 2rem;
    margin-bottom: 1rem;
    font-size: 1.25rem;
}

.impact-list,
.achievement-list {
    list-style: none;
    margin-bottom: 2rem;
}

.impact-list li,
.achievement-list li {
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--gray-200);
    position: relative;
    padding-left: 2rem;
    color: var(--gray-700);
}

.impact-list li:last-child,
.achievement-list li:last-child {
    border-bottom: none;
}

.impact-list li::before,
.achievement-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    top: 0.75rem;
    color: var(--accent);
    font-weight: bold;
}

.skills-overview {
    background: var(--gray-50);
    padding: 2rem;
    border-radius: var(--border-radius-lg);
    height: fit-content;
    position: sticky;
    top: 2rem;
}

.skills-overview h3 {
    color: var(--dark);
    margin-bottom: 1.5rem;
    font-size: 1.5rem;
}

.skills-grid {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.skill-category h4 {
    color: var(--primary);
    margin-bottom: 1rem;
    font-size: 1rem;
}

.skill-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.skill-tags span {
    padding: 0.5rem 1rem;
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: 2rem;
    font-size: 0.875rem;
    color: var(--gray-700);
    transition: var(--transition);
}

.skill-tags span:hover {
    background: var(--primary);
    color: var(--white);
    border-color: var(--primary);
}

/* ===== PORTFOLIO SECTION ===== */
.portfolio-section {
    padding: 6rem 0;
    background: var(--gray-50);
}

.portfolio-filters {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 0.75rem 1.5rem;
    background: var(--white);
    border: 2px solid var(--gray-200);
    border-radius: 2rem;
    color: var(--gray-600);
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
}

.filter-btn:hover,
.filter-btn.active {
    background: var(--primary);
    color: var(--white);
    border-color: var(--primary);
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 2rem;
    margin-bottom: 4rem;
}

.portfolio-item {
    background: var(--white);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
    opacity: 1;
    transform: scale(1);
}

.portfolio-item.hidden {
    opacity: 0;
    transform: scale(0.8);
    pointer-events: none;
}

.portfolio-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.portfolio-item.featured {
    grid-column: span 2;
}

.portfolio-image {
    position: relative;
    height: 250px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.portfolio-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.portfolio-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition);
}

.portfolio-item:hover .portfolio-overlay {
    opacity: 1;
}

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

.portfolio-content {
    padding: 2rem;
}

.portfolio-tag {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background: rgba(99, 102, 241, 0.1);
    color: var(--primary);
    border-radius: 1rem;
    font-size: 0.75rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.portfolio-content h3 {
    color: var(--dark);
    margin-bottom: 1rem;
    font-size: 1.5rem;
}

.portfolio-content p {
    color: var(--gray-600);
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.tech-stack {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.tech-stack span {
    padding: 0.25rem 0.75rem;
    background: var(--gray-100);
    color: var(--gray-700);
    border-radius: 1rem;
    font-size: 0.75rem;
    font-weight: 500;
}

.project-stats {
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.project-stats span {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--gray-600);
    font-size: 0.875rem;
    font-weight: 500;
}

.project-stats i {
    color: var(--accent);
}

.portfolio-summary {
    text-align: center;
    margin-top: 4rem;
}

.portfolio-summary h3 {
    color: var(--dark);
    margin-bottom: 2rem;
    font-size: 2rem;
}

.impact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.impact-card {
    background: var(--white);
    padding: 2rem;
    border-radius: var(--border-radius-lg);
    text-align: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.impact-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.impact-card i {
    font-size: 3rem;
    color: var(--primary);
    margin-bottom: 1rem;
}

.impact-card h4 {
    color: var(--dark);
    margin-bottom: 0.5rem;
    font-size: 1.5rem;
}

.impact-card p {
    color: var(--gray-600);
    font-size: 0.875rem;
}

/* ===== EXPERIENCE SECTION ===== */
.experience-section {
    padding: 6rem 0;
    background: var(--white);
}

.timeline {
    position: relative;
    max-width: 1000px;
    margin: 0 auto;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 2rem;
    top: 0;
    height: 100%;
    width: 2px;
    background: var(--gray-200);
}

.timeline-item {
    position: relative;
    margin-bottom: 4rem;
    padding-left: 5rem;
}

.timeline-marker {
    position: absolute;
    left: 1rem;
    top: 1rem;
    width: 2rem;
    height: 2rem;
    background: var(--primary);
    border-radius: 50%;
    border: 4px solid var(--white);
    box-shadow: var(--shadow);
}

.timeline-content {
    background: var(--white);
    padding: 2rem;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow);
    border-left: 4px solid var(--primary);
}

.timeline-header {
    margin-bottom: 1.5rem;
}

.timeline-header h3 {
    color: var(--dark);
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.company {
    color: var(--primary);
    font-weight: 600;
    font-size: 1.125rem;
    margin-right: 1rem;
}

.duration {
    color: var(--gray-500);
    font-size: 0.875rem;
    font-weight: 500;
}

.role-description {
    color: var(--gray-600);
    margin-bottom: 1.5rem;
    font-size: 1rem;
    line-height: 1.6;
}

.achievements h4 {
    color: var(--primary);
    font-size: 1rem;
    margin-bottom: 0.75rem;
    margin-top: 1.5rem;
}

.achievements ul {
    list-style: none;
    margin-bottom: 1rem;
}

.achievements li {
    padding: 0.5rem 0;
    padding-left: 1.5rem;
    position: relative;
    color: var(--gray-700);
    line-height: 1.5;
}

.achievements li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--accent);
    font-weight: bold;
}

.tech-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 1.5rem;
}

.tech-tags span {
    padding: 0.5rem 1rem;
    background: var(--gray-100);
    color: var(--gray-700);
    border-radius: 2rem;
    font-size: 0.75rem;
    font-weight: 600;
}

/* ===== SKILLS SECTION ===== */
.skills-section {
    padding: 6rem 0;
    background: var(--gray-50);
}

.skills-container {
    display: flex;
    flex-direction: column;
    gap: 3rem;
}

.skill-category {
    background: var(--white);
    padding: 2rem;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow);
}

.skill-category h3 {
    color: var(--dark);
    margin-bottom: 2rem;
    font-size: 1.5rem;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.skill-category h3 i {
    color: var(--primary);
    font-size: 1.75rem;
}

.skill-item {
    margin-bottom: 1.5rem;
}

.skill-name {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--dark);
}

.skill-level {
    font-size: 0.875rem;
    color: var(--gray-500);
    font-weight: 500;
}

.skill-bar {
    width: 100%;
    height: 8px;
    background: var(--gray-200);
    border-radius: 4px;
    overflow: hidden;
}

.skill-progress {
    height: 100%;
    background: var(--gradient);
    border-radius: 4px;
    transition: width 1s ease-in-out;
    animation: skillLoad 1s ease-in-out;
}

.skill-item.expert .skill-progress {
    background: linear-gradient(90deg, var(--primary), var(--accent));
}

.skill-item.advanced .skill-progress {
    background: linear-gradient(90deg, var(--secondary), var(--primary));
}

.skill-item.intermediate .skill-progress {
    background: linear-gradient(90deg, var(--gray-400), var(--gray-600));
}

@keyframes skillLoad {
    0% { width: 0; }
}

.certifications {
    margin-top: 4rem;
    text-align: center;
}

.certifications h3 {
    color: var(--dark);
    margin-bottom: 2rem;
    font-size: 2rem;
}

.cert-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.cert-item {
    background: var(--white);
    padding: 2rem;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow);
    text-align: center;
    transition: var(--transition);
}

.cert-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.cert-item i {
    font-size: 3rem;
    color: var(--primary);
    margin-bottom: 1rem;
}

.cert-item h4 {
    color: var(--dark);
    margin-bottom: 0.5rem;
}

.cert-item p {
    color: var(--gray-600);
    font-size: 0.875rem;
}

/* ===== SERVICES SECTION ===== */
.services-section {
    padding: 6rem 0;
    background: var(--white);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-bottom: 4rem;
}

.service-card {
    background: var(--white);
    padding: 2rem;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow);
    border: 1px solid var(--gray-200);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--gradient);
    transform: scaleX(0);
    transition: var(--transition);
}

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

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

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

.service-card.featured::before {
    transform: scaleX(1);
}

.service-icon {
    width: 4rem;
    height: 4rem;
    background: var(--gradient);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.service-icon i {
    font-size: 1.5rem;
    color: var(--white);
}

.service-card h3 {
    color: var(--dark);
    margin-bottom: 1rem;
    font-size: 1.5rem;
}

.service-card p {
    color: var(--gray-600);
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.service-features {
    list-style: none;
    margin-bottom: 1.5rem;
}

.service-features li {
    padding: 0.5rem 0;
    padding-left: 1.5rem;
    position: relative;
    color: var(--gray-700);
    font-size: 0.875rem;
}

.service-features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--accent);
    font-weight: bold;
}

.service-technologies {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.service-technologies span {
    padding: 0.25rem 0.75rem;
    background: var(--gray-100);
    color: var(--gray-700);
    border-radius: 1rem;
    font-size: 0.75rem;
    font-weight: 500;
}

.service-cta {
    text-align: center;
    padding: 3rem;
    background: var(--gradient);
    border-radius: var(--border-radius-lg);
    color: var(--white);
}

.service-cta h3 {
    color: var(--white);
    margin-bottom: 1rem;
    font-size: 2rem;
}

.service-cta p {
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 2rem;
    font-size: 1.125rem;
}

.cta-buttons {
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.cta-buttons .btn {
    background: var(--white);
    color: var(--primary);
}

.cta-buttons .btn:hover {
    background: var(--gray-100);
    transform: translateY(-2px);
}

/* ===== CONTACT SECTION ===== */
.contact-section {
    padding: 6rem 0;
    background: var(--gray-50);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    margin-bottom: 4rem;
}

.contact-info h3 {
    color: var(--dark);
    margin-bottom: 1rem;
    font-size: 2rem;
}

.contact-info > p {
    color: var(--gray-600);
    margin-bottom: 2rem;
    line-height: 1.6;
    font-size: 1.125rem;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1rem;
    background: var(--white);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
}

.contact-item i {
    font-size: 1.25rem;
    color: var(--primary);
    margin-top: 0.25rem;
}

.contact-item h4 {
    color: var(--dark);
    margin-bottom: 0.25rem;
    font-size: 1rem;
}

.contact-item a {
    color: var(--primary);
    font-weight: 500;
}

.contact-item span {
    color: var(--gray-600);
    font-size: 0.875rem;
    display: block;
}

.location-note,
.availability-note {
    font-size: 0.75rem;
    color: var(--gray-500);
    margin-top: 0.25rem;
}

.availability-status {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem;
    background: rgba(6, 214, 160, 0.1);
    border-radius: var(--border-radius);
    margin-top: 1rem;
}

.status-indicator {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--accent);
    animation: pulse 2s infinite;
}

.status-indicator.available {
    background: var(--accent);
}

@keyframes pulse {
    0% { box-shadow: 0 0 0 0 rgba(6, 214, 160, 0.7); }
    70% { box-shadow: 0 0 0 10px rgba(6, 214, 160, 0); }
    100% { box-shadow: 0 0 0 0 rgba(6, 214, 160, 0); }
}

.availability-status span {
    color: var(--accent-dark);
    font-weight: 600;
    font-size: 0.875rem;
}

.contact-form {
    background: var(--white);
    padding: 2rem;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow);
}

.contact-form h3 {
    color: var(--dark);
    margin-bottom: 2rem;
    font-size: 1.75rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    color: var(--gray-700);
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.875rem;
    border: 2px solid var(--gray-200);
    border-radius: var(--border-radius);
    font-size: 1rem;
    transition: var(--transition);
    font-family: inherit;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.form-group textarea {
    resize: vertical;
}

.target-companies {
    text-align: center;
}

.target-companies h3 {
    color: var(--dark);
    margin-bottom: 2rem;
    font-size: 2rem;
}

.companies-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.company-category {
    background: var(--white);
    padding: 2rem;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow);
}

.company-category h4 {
    color: var(--primary);
    margin-bottom: 1rem;
    font-size: 1.25rem;
}

.company-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    justify-content: center;
}

.company-tags span {
    padding: 0.5rem 1rem;
    background: var(--gray-100);
    color: var(--gray-700);
    border-radius: 2rem;
    font-size: 0.875rem;
    font-weight: 500;
    transition: var(--transition);
}

.company-tags span:hover {
    background: var(--primary);
    color: var(--white);
}

/* ===== FOOTER ===== */
.footer {
    background: var(--dark);
    color: var(--white);
    padding: 3rem 0 2rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h3 {
    color: var(--white);
    margin-bottom: 1rem;
    font-size: 1.5rem;
}

.footer-section h4 {
    color: var(--white);
    margin-bottom: 1rem;
    font-size: 1.125rem;
}

.footer-section p {
    color: var(--gray-400);
    margin-bottom: 1rem;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 0.5rem;
}

.footer-section ul li a {
    color: var(--gray-400);
    transition: var(--transition);
}

.footer-section ul li a:hover {
    color: var(--primary);
}

.social-links {
    display: flex;
    gap: 1rem;
    margin-top: 1rem;
}

.social-links a {
    width: 2.5rem;
    height: 2.5rem;
    border-radius: 50%;
    background: var(--gray-700);
    color: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.social-links a:hover {
    background: var(--primary);
    transform: translateY(-2px);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid var(--gray-700);
}

.footer-bottom p {
    color: var(--gray-400);
    margin-bottom: 0.5rem;
}

/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 1024px) {
    .hero-content {
        grid-template-columns: 1fr;
        gap: 3rem;
        text-align: center;
    }
    
    .hero-visual {
        order: -1;
        height: 300px;
    }
    
    .about-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .hero-stats {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .container {
        padding: 0 1rem;
    }
    
    .mobile-menu-toggle {
        display: block;
    }
    
    .nav-menu {
        position: fixed;
        top: 100%;
        left: 0;
        width: 100%;
        background: var(--white);
        flex-direction: column;
        padding: 2rem;
        box-shadow: var(--shadow-lg);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: var(--transition);
    }
    
    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-stats {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .portfolio-grid {
        grid-template-columns: 1fr;
    }
    
    .portfolio-item.featured {
        grid-column: span 1;
    }
    
    .portfolio-filters {
        justify-content: flex-start;
        overflow-x: auto;
        padding-bottom: 1rem;
    }
    
    .filter-btn {
        white-space: nowrap;
    }
    
    .timeline::before {
        left: 1rem;
    }
    
    .timeline-item {
        padding-left: 3rem;
    }
    
    .timeline-marker {
        left: 0.5rem;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .impact-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .companies-grid {
        grid-template-columns: 1fr;
    }
    
    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    h1 { font-size: 2.5rem; }
    h2 { font-size: 2rem; }
    h3 { font-size: 1.5rem; }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-description {
        font-size: 1rem;
    }
    
    .floating-card {
        padding: 1rem;
    }
    
    .floating-card i {
        font-size: 1.5rem;
    }
    
    .floating-card span {
        font-size: 0.75rem;
    }
    
    .impact-grid {
        grid-template-columns: 1fr;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .timeline-content {
        padding: 1.5rem;
    }
    
    .contact-form {
        padding: 1.5rem;
    }
    
    .service-card {
        padding: 1.5rem;
    }
}

/* ===== SCROLL ANIMATIONS ===== */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease-out;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

.slide-in-left {
    opacity: 0;
    transform: translateX(-50px);
    transition: all 0.6s ease-out;
}

.slide-in-left.visible {
    opacity: 1;
    transform: translateX(0);
}

.slide-in-right {
    opacity: 0;
    transform: translateX(50px);
    transition: all 0.6s ease-out;
}

.slide-in-right.visible {
    opacity: 1;
    transform: translateX(0);
}

/* ===== LOADING ANIMATIONS ===== */
.loading {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: opacity 0.5s ease-out;
}

.loading.hidden {
    opacity: 0;
    pointer-events: none;
}

.spinner {
    width: 50px;
    height: 50px;
    border: 5px solid var(--gray-200);
    border-top: 5px solid var(--primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* ===== SCROLL TO TOP ===== */
.scroll-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 3rem;
    height: 3rem;
    background: var(--primary);
    color: var(--white);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    opacity: 0;
    transform: translateY(20px);
    transition: var(--transition);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
}

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

.scroll-to-top:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
}