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

:root {
    --primary-color: #2563eb;
    --secondary-color: #7c3aed;
    --accent-color: #0891b2;
    --success-color: #059669;
    --cyan-color: #0284c7;
    --purple-color: #6366f1;
    --dark-color: #1e293b;
    --light-color: #f8fafc;
    --text-color: #334155;
    --border-color: #e2e8f0;
    --gradient-primary: linear-gradient(135deg, #2563eb 0%, #4f46e5 100%);
    --gradient-secondary: linear-gradient(135deg, #7c3aed 0%, #6366f1 100%);
    --gradient-accent: linear-gradient(135deg, #0891b2 0%, #0284c7 100%);
    --gradient-success: linear-gradient(135deg, #059669 0%, #10b981 100%);
    --gradient-genz: linear-gradient(135deg, #2563eb 0%, #4f46e5 40%, #7c3aed 70%, #6366f1 100%);
    --shadow: 0 4px 15px rgba(37, 99, 235, 0.08);
    --shadow-lg: 0 15px 50px rgba(37, 99, 235, 0.12);
    --shadow-neon: 0 0 30px rgba(99, 102, 241, 0.3);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@400;500;600;700;800;900&display=swap');

body {
    font-family: 'Poppins', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    overflow-x: hidden;
    background: #ffffff;
}

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

/* Navigation */
.navbar {
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(20px);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.05);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    transition: var(--transition);
    border-bottom: 1px solid var(--border-color);
}

.nav-wrapper {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
}

.logo h1 {
    background: linear-gradient(135deg, #2563eb, #4f46e5, #7c3aed);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-size: 1.8rem;
    font-weight: 900;
    letter-spacing: -1px;
    position: relative;
}

.logo h1::after {
    content: '✨';
    position: absolute;
    margin-left: 8px;
    font-size: 1.2rem;
    animation: sparkle 2s ease-in-out infinite;
}

@keyframes sparkle {
    0%, 100% { transform: scale(1) rotate(0deg); opacity: 1; }
    50% { transform: scale(1.2) rotate(180deg); opacity: 0.8; }
}

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

.nav-link {
    color: var(--text-color);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 3px;
    background: linear-gradient(90deg, #667eea, #f093fb);
    transition: var(--transition);
    border-radius: 10px;
}

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

.nav-link:hover,
.nav-link.active {
    background: linear-gradient(135deg, #667eea, #f093fb);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Header Icons */
.header-icons {
    display: flex;
    gap: 1rem;
    align-items: center;
    margin-left: 2rem;
}

.header-icon {
    font-size: 1.5rem;
    text-decoration: none;
    transition: var(--transition);
    padding: 0.5rem;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(37, 99, 235, 0.1);
    width: 45px;
    height: 45px;
}

.header-icon:hover {
    transform: scale(1.15) rotate(5deg);
    background: linear-gradient(135deg, #2563eb, #7c3aed);
    box-shadow: 0 4px 15px rgba(37, 99, 235, 0.3);
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 4px;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--dark-color);
    transition: var(--transition);
}

/* Hero Section */
.hero {
    height: 100vh;
    background: linear-gradient(135deg, #1e40af 0%, #2563eb 30%, #4f46e5 60%, #7c3aed 90%);
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: white;
    margin-top: 70px;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 20% 50%, rgba(255, 255, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(99, 102, 241, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 40% 20%, rgba(37, 99, 235, 0.15) 0%, transparent 50%);
    animation: float 8s ease-in-out infinite;
}

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

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.2);
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 900px;
}

.hero-badge {
    display: inline-block;
    background: rgba(255, 255, 255, 0.15);
    padding: 12px 28px;
    border-radius: 100px;
    font-size: 0.95rem;
    margin-bottom: 1.5rem;
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
    animation: bounce 2s ease-in-out infinite;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
}

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

.hero-title {
    font-size: 3.5rem;
    margin-bottom: 1rem;
    font-weight: 900;
    line-height: 1.2;
    animation: fadeInUp 1s ease;
    text-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
    letter-spacing: -2px;
    color: #ffffff;
}

.hero-subtitle {
    font-size: 1.3rem;
    margin-bottom: 2rem;
    opacity: 0.95;
    animation: fadeInUp 1s ease 0.2s backwards;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    animation: fadeInUp 1s ease 0.4s backwards;
    margin-bottom: 2rem;
}

.hero-features {
    display: flex;
    gap: 2rem;
    justify-content: center;
    flex-wrap: wrap;
    animation: fadeInUp 1s ease 0.6s backwards;
    margin-top: 2rem;
}

.hero-feature-item {
    font-size: 1rem;
    font-weight: 600;
    padding: 12px 24px;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.25), rgba(255, 255, 255, 0.15));
    border-radius: 50px;
    backdrop-filter: blur(15px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
}

/* Buttons */
.btn {
    padding: 16px 40px;
    border-radius: 100px;
    text-decoration: none;
    font-weight: 700;
    transition: var(--transition);
    display: inline-block;
    border: none;
    cursor: pointer;
    position: relative;
    overflow: hidden;
    font-size: 1.05rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
    transition: left 0.6s;
}

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

.btn::after {
    content: '→';
    position: absolute;
    right: 20px;
    opacity: 0;
    transition: var(--transition);
}

.btn:hover::after {
    opacity: 1;
    right: 15px;
}

.btn-primary {
    background: linear-gradient(135deg, #2563eb 0%, #4f46e5 50%, #7c3aed 100%);
    color: white;
    box-shadow: 0 4px 20px rgba(37, 99, 235, 0.25);
    border: 2px solid transparent;
}

.btn-primary:hover {
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 8px 30px rgba(37, 99, 235, 0.35);
    filter: brightness(1.05);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.15);
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
    font-weight: 600;
}

.btn-secondary:hover {
    background: white;
    color: #2563eb;
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 8px 25px rgba(255, 255, 255, 0.3);
}

.btn-block {
    width: 100%;
}

/* Section Styles */
section {
    padding: 80px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 3rem;
}

.section-title {
    font-size: 2.8rem;
    color: var(--dark-color);
    margin-bottom: 1rem;
    font-weight: 900;
    letter-spacing: -1.5px;
    position: relative;
    display: inline-block;
}

.section-title::before {
    content: '';
    position: absolute;
    top: -10px;
    left: -15px;
    width: 30px;
    height: 30px;
    background: linear-gradient(135deg, #7c3aed, #6366f1);
    border-radius: 50%;
    opacity: 0.2;
    z-index: -1;
}

.title-underline {
    width: 100px;
    height: 4px;
    background: linear-gradient(90deg, #2563eb, #4f46e5, #7c3aed, #6366f1);
    margin: 0 auto 1.5rem;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(37, 99, 235, 0.25);
    animation: shimmer 3s ease-in-out infinite;
}

@keyframes shimmer {
    0%, 100% { transform: scaleX(1); }
    50% { transform: scaleX(1.1); }
}

.section-subtitle {
    color: #666;
    font-size: 1.1rem;
}

/* About Section */
.about-section {
    background: linear-gradient(180deg, #faf5ff 0%, #ffffff 100%);
    position: relative;
}

.about-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 10% 20%, rgba(99, 102, 241, 0.05) 0%, transparent 50%);
    pointer-events: none;
}

.about-text p {
    font-size: 1.1rem;
    margin-bottom: 1.5rem;
    text-align: center;
    max-width: 1000px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.8;
}

.stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.stat-item {
    text-align: center;
    padding: 2.5rem 1.5rem;
    background: linear-gradient(135deg, #ffffff 0%, #fef3ff 100%);
    border-radius: 25px;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border: 3px solid transparent;
    position: relative;
    overflow: hidden;
}

.stat-item::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(45deg, transparent, rgba(102, 126, 234, 0.1), transparent);
    transform: rotate(45deg);
    animation: scan 3s linear infinite;
}

@keyframes scan {
    0% { transform: translateX(-100%) translateY(-100%) rotate(45deg); }
    100% { transform: translateX(100%) translateY(100%) rotate(45deg); }
}

.stat-item:hover {
    transform: translateY(-15px) scale(1.05) rotate(-2deg);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.stat-icon {
    font-size: 3.5rem;
    margin-bottom: 1rem;
    filter: drop-shadow(0 4px 10px rgba(236, 72, 153, 0.3));
    animation: wiggle 2s ease-in-out infinite;
}

@keyframes wiggle {
    0%, 100% { transform: rotate(0deg); }
    25% { transform: rotate(-10deg); }
    75% { transform: rotate(10deg); }
}

.stat-number {
    font-size: 3.5rem;
    background: linear-gradient(135deg, #667eea, #764ba2, #f093fb);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 900;
    letter-spacing: -2px;
}

.stat-item p {
    color: #666;
    font-size: 1rem;
    margin-top: 0.5rem;
}

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

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

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.feature-box {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: var(--shadow);
    text-align: left;
    transition: var(--transition);
}

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

.feature-box h4 {
    color: var(--dark-color);
    margin-bottom: 1rem;
    font-size: 1.2rem;
}

.feature-box p {
    color: #666;
    line-height: 1.7;
    text-align: left;
}

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

.service-card {
    background: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
    padding: 2.5rem 2rem;
    border-radius: 20px;
    box-shadow: var(--shadow);
    text-align: center;
    transition: var(--transition);
    border: 2px solid var(--border-color);
    position: relative;
    overflow: hidden;
    cursor: pointer;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.05), rgba(99, 102, 241, 0.05));
    opacity: 0;
    transition: var(--transition);
}

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

.service-card:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 12px 40px rgba(37, 99, 235, 0.15);
    border-color: var(--primary-color);
}

.service-icon {
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
    display: inline-block;
    filter: drop-shadow(0 2px 8px rgba(37, 99, 235, 0.15));
    transition: var(--transition);
}

.service-card:hover .service-icon {
    transform: scale(1.1) rotate(5deg);
    filter: drop-shadow(0 4px 15px rgba(37, 99, 235, 0.25));
}

.service-card h3 {
    color: var(--dark-color);
    margin-bottom: 1rem;
    font-size: 1.4rem;
}

.service-card p {
    color: #666;
    line-height: 1.8;
}

/* PhD Phases Section */
.phd-phases {
    background: linear-gradient(135deg, #f1f5f9 0%, #e0e7ff 100%);
    padding: 80px 0;
    position: relative;
    overflow: hidden;
}

.phd-phases::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(236, 72, 153, 0.15) 0%, transparent 70%);
    border-radius: 50%;
}

.phases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.phase-card {
    background: white;
    padding: 2.5rem;
    border-radius: 20px;
    box-shadow: var(--shadow);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    border: 2px solid var(--border-color);
    cursor: pointer;
}

.phase-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, #2563eb, #4f46e5, #7c3aed, #6366f1);
    animation: slideRight 2s ease-in-out infinite;
}

@keyframes slideRight {
    0%, 100% { transform: translateX(-100%); }
    50% { transform: translateX(100%); }
}

.phase-card::after {
    content: '💡';
    position: absolute;
    top: 20px;
    right: 20px;
    font-size: 2rem;
    opacity: 0;
    transition: var(--transition);
}

.phase-card:hover::after {
    opacity: 1;
    transform: rotate(15deg) scale(1.1);
}

.phase-card:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 15px 45px rgba(37, 99, 235, 0.2);
    border-color: var(--primary-color);
}

.phase-number {
    display: inline-block;
    background: linear-gradient(135deg, #2563eb 0%, #4f46e5 50%, #7c3aed 100%);
    color: white;
    padding: 10px 24px;
    border-radius: 100px;
    font-weight: 700;
    margin-bottom: 1.5rem;
    font-size: 0.95rem;
    box-shadow: 0 4px 15px rgba(37, 99, 235, 0.25);
    text-transform: uppercase;
    letter-spacing: 1px;
    border: 1px solid rgba(255, 255, 255, 0.3);
}

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

.phase-card ul {
    list-style: none;
    margin-bottom: 1.5rem;
}

.phase-card ul li {
    padding: 0.5rem 0;
    color: #666;
    font-size: 1rem;
}

.phase-link {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
}

.phase-link:hover {
    color: var(--secondary-color);
}

/* Research Section */
.research-section {
    background: linear-gradient(180deg, #fef3c7 0%, #fef9e7 50%, #ffffff 100%);
    position: relative;
}

.research-section::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 90% 10%, rgba(245, 158, 11, 0.08) 0%, transparent 50%);
    pointer-events: none;
}

.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 3rem;
}

.tool-card {
    background: white;
    padding: 1.5rem;
    border-radius: 15px;
    box-shadow: var(--shadow);
    text-align: center;
    transition: var(--transition);
    border-left: 3px solid var(--primary-color);
    position: relative;
    border: 2px solid var(--border-color);
}

.tool-card::after {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 15px;
    padding: 2px;
    background: linear-gradient(135deg, #2563eb, #7c3aed);
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    mask-composite: exclude;
    opacity: 0;
    transition: var(--transition);
}

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

.tool-card:hover {
    transform: translateY(-5px) scale(1.01);
    box-shadow: 0 10px 35px rgba(37, 99, 235, 0.15);
}

.tool-icon {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
}

.tool-card h3 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
    font-size: 1.3rem;
}

.tool-card p {
    color: #666;
    font-size: 0.95rem;
    line-height: 1.6;
}

.research-areas-section {
    margin-top: 3rem;
}

.research-areas {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.research-card {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    border-top: 4px solid var(--secondary-color);
    box-shadow: var(--shadow);
    transition: var(--transition);
}

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

.research-card h3 {
    color: var(--dark-color);
    margin-bottom: 0.5rem;
}

.research-card p {
    color: #666;
}

/* Publications Section */
.publications-list {
    max-width: 800px;
    margin: 0 auto;
}

.publication-item {
    display: flex;
    gap: 2rem;
    padding: 2rem;
    background: white;
    border-radius: 10px;
    box-shadow: var(--shadow);
    margin-bottom: 2rem;
    transition: var(--transition);
}

.publication-item:hover {
    box-shadow: var(--shadow-lg);
}

.publication-year {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-color);
    min-width: 80px;
}

.publication-details h3 {
    color: var(--dark-color);
    margin-bottom: 0.5rem;
}

.publication-details p {
    color: #666;
    margin-bottom: 1rem;
}

.read-more {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
}

.read-more:hover {
    color: var(--secondary-color);
}

/* Testimonials Section */
.testimonials-section {
    background: white;
    padding: 80px 0;
}

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

.testimonial-card {
    background: linear-gradient(135deg, #ffffff 0%, #fef3ff 100%);
    padding: 2.5rem;
    border-radius: 30px;
    box-shadow: var(--shadow);
    transition: var(--transition);
    position: relative;
    border: 3px solid transparent;
    cursor: pointer;
}

.testimonial-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 5px;
    background: linear-gradient(90deg, #667eea, #764ba2, #f093fb);
    border-radius: 30px 30px 0 0;
}

.testimonial-card::after {
    content: '⭐⭐⭐⭐⭐';
    position: absolute;
    top: 20px;
    right: 20px;
    font-size: 0.9rem;
    opacity: 0;
    transition: var(--transition);
}

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

.testimonial-card:hover {
    transform: translateY(-12px) scale(1.03) rotate(-1deg);
    box-shadow: 0 20px 60px rgba(102, 126, 234, 0.3);
    border-image: linear-gradient(135deg, #667eea, #f093fb) 1;
}

.quote-icon {
    font-size: 5rem;
    background: linear-gradient(135deg, #667eea, #764ba2, #f093fb);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    opacity: 0.4;
    line-height: 1;
    margin-bottom: 1rem;
    transform: rotate(-10deg);
    display: inline-block;
}

.testimonial-card p {
    color: var(--text-color);
    line-height: 1.8;
    margin-bottom: 1.5rem;
    font-style: italic;
}

.testimonial-author {
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
}

.testimonial-author strong {
    color: var(--dark-color);
    font-size: 1.1rem;
}

.testimonial-author span {
    color: #666;
    font-size: 0.9rem;
}

/* Guarantee Section */
.guarantee-section {
    margin-top: 4rem;
    padding: 4rem 3rem;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 25%, #f093fb 50%, #f5576c 75%, #ffd200 100%);
    border-radius: 40px;
    color: white;
    text-align: center;
    box-shadow: 0 20px 70px rgba(102, 126, 234, 0.4), 0 0 100px rgba(236, 72, 153, 0.3);
    position: relative;
    overflow: hidden;
    border: 4px solid rgba(255, 255, 255, 0.3);
}

.guarantee-section::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: 
        radial-gradient(circle at 30% 50%, rgba(255, 255, 255, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 70% 80%, rgba(255, 255, 255, 0.1) 0%, transparent 50%);
    animation: rotate 15s linear infinite;
}

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

.guarantee-section h3 {
    position: relative;
    z-index: 1;
    font-size: 2.5rem;
    font-weight: 900;
    margin-bottom: 3rem;
    text-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
    letter-spacing: -1px;
}

.guarantee-section h3 {
    font-size: 2rem;
    margin-bottom: 2rem;
}

.guarantee-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
}

.guarantee-item {
    text-align: center;
    position: relative;
    z-index: 1;
}

.guarantee-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    background: rgba(255, 255, 255, 0.25);
    width: 80px;
    height: 80px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    backdrop-filter: blur(10px);
    border: 3px solid rgba(255, 255, 255, 0.4);
    transition: var(--transition);
}

.guarantee-item:hover .guarantee-icon {
    transform: scale(1.2) rotate(360deg);
    box-shadow: 0 10px 30px rgba(255, 255, 255, 0.4);
}

.guarantee-item h4 {
    margin-bottom: 0.8rem;
    font-size: 1.3rem;
    font-weight: 800;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

.guarantee-item p {
    opacity: 0.95;
    font-size: 1rem;
    font-weight: 500;
}

/* Contact Section */
.contact-section {
    background: var(--light-color);
}

.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.contact-item {
    display: flex;
    gap: 1rem;
    align-items: start;
    background: rgba(255, 255, 255, 0.1);
    padding: 1.5rem;
    border-radius: 10px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
}

.contact-icon {
    font-size: 2rem;
}

.contact-item h3 {
    color: white;
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.contact-item p {
    color: rgba(255, 255, 255, 0.95);
    line-height: 1.8;
}

/* Contact Form */
.contact-form {
    background: linear-gradient(135deg, #ffffff 0%, #fef3ff 100%);
    padding: 3rem;
    border-radius: 35px;
    box-shadow: var(--shadow);
    border: 3px solid transparent;
    position: relative;
    overflow: hidden;
}

.contact-form::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 5px;
    background: linear-gradient(90deg, #667eea, #764ba2, #f093fb, #f5576c);
}

.contact-form h3 {
    margin-bottom: 2rem;
    color: var(--dark-color);
    font-weight: 900;
    font-size: 1.8rem;
}

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

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 16px 20px;
    border: 3px solid var(--border-color);
    border-radius: 20px;
    font-size: 1rem;
    transition: var(--transition);
    font-family: 'Poppins', sans-serif;
    font-weight: 500;
    background: white;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: transparent;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.3), 0 0 30px rgba(236, 72, 153, 0.2);
    transform: translateY(-2px);
    background: linear-gradient(135deg, #ffffff 0%, #fef3ff 100%);
}

.contact-info {
    background: linear-gradient(135deg, #2563eb 0%, #4f46e5 50%, #7c3aed 100%);
    padding: 3rem;
    border-radius: 25px;
    color: white;
    box-shadow: 0 12px 40px rgba(37, 99, 235, 0.25);
    position: relative;
    overflow: hidden;
    border: 2px solid rgba(255, 255, 255, 0.2);
}

.contact-info::before {
    content: '💬';
    position: absolute;
    top: 20px;
    right: 20px;
    font-size: 4rem;
    opacity: 0.2;
    animation: pulse 3s ease-in-out infinite;
}

.contact-info::after {
    content: '';
    position: absolute;
    bottom: -50px;
    right: -50px;
    width: 200px;
    height: 200px;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.15) 0%, transparent 70%);
    border-radius: 50%;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

.contact-info h3 {
    font-size: 2rem;
    margin-bottom: 2rem;
    color: white;
    font-weight: 800;
    position: relative;
    z-index: 1;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.contact-info h4 {
    color: white;
    margin-bottom: 0.5rem;
    font-weight: 600;
    position: relative;
    z-index: 1;
}

.contact-info p {
    color: rgba(255, 255, 255, 0.98);
    line-height: 1.8;
    position: relative;
    z-index: 1;
    font-size: 1.05rem;
}

/* Footer */
.footer {
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
    color: white;
    padding: 4rem 0 1.5rem;
    position: relative;
    overflow: hidden;
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 5px;
    background: linear-gradient(90deg, #667eea, #764ba2, #f093fb, #f5576c, #ffd200);
}

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

.footer-section h3 {
    margin-bottom: 1.5rem;
    background: linear-gradient(135deg, #667eea, #f093fb);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 900;
    font-size: 1.3rem;
}

.footer-section p {
    color: #cbd5e1;
    line-height: 1.7;
}

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

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

.footer-section a {
    color: #cbd5e1;
    text-decoration: none;
    transition: var(--transition);
}

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

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

.social-link {
    padding: 12px 22px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 15px;
    transition: var(--transition);
    border: 2px solid rgba(255, 255, 255, 0.2);
    font-weight: 600;
}

.social-link:hover {
    background: linear-gradient(135deg, #667eea, #f093fb);
    color: white !important;
    transform: translateY(-5px) scale(1.05);
    box-shadow: 0 10px 30px rgba(102, 126, 234, 0.4);
    border-color: transparent;
}

.footer-disclaimer {
    background: rgba(255, 255, 255, 0.05);
    padding: 1.5rem;
    border-radius: 8px;
    margin-bottom: 2rem;
}

.footer-disclaimer p {
    color: #cbd5e1;
    font-size: 0.9rem;
    line-height: 1.6;
    margin: 0;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: #cbd5e1;
}

.footer-links {
    margin-top: 1rem;
}

.footer-links a {
    color: #cbd5e1;
    text-decoration: none;
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--primary-color);
}

/* Scroll to Top Button */
.scroll-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #667eea, #764ba2, #f093fb);
    color: white;
    border: 3px solid rgba(255, 255, 255, 0.5);
    border-radius: 50%;
    font-size: 1.8rem;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 999;
    box-shadow: 0 10px 35px rgba(102, 126, 234, 0.5), 0 0 50px rgba(236, 72, 153, 0.3);
    display: flex;
    align-items: center;
    justify-content: center;
}

.scroll-top.active {
    opacity: 1;
    visibility: visible;
    animation: bounce 2s ease-in-out infinite;
}

.scroll-top:hover {
    transform: translateY(-10px) scale(1.15) rotate(10deg);
    box-shadow: 0 15px 50px rgba(102, 126, 234, 0.6), 0 0 80px rgba(236, 72, 153, 0.5);
}

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

.animate-fade-in {
    animation: fadeInUp 1s ease;
}

/* Modal Styles */
.modal {
    display: none;
    position: fixed;
    z-index: 10000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(10px);
    animation: fadeIn 0.3s ease;
}

.modal.active {
    display: flex;
    align-items: center;
    justify-content: center;
}

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

.modal-content {
    background: linear-gradient(135deg, #ffffff 0%, #fef3ff 100%);
    padding: 0;
    border-radius: 35px;
    max-width: 600px;
    width: 90%;
    max-height: 85vh;
    overflow-y: auto;
    position: relative;
    box-shadow: 0 25px 80px rgba(102, 126, 234, 0.5);
    border: 3px solid rgba(255, 255, 255, 0.5);
    animation: slideUp 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(50px) scale(0.9);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.modal-close {
    position: absolute;
    top: 20px;
    right: 25px;
    font-size: 2.5rem;
    font-weight: bold;
    color: #666;
    cursor: pointer;
    z-index: 1;
    transition: var(--transition);
    line-height: 1;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.5);
}

.modal-close:hover {
    color: #f5576c;
    transform: rotate(90deg) scale(1.1);
    background: rgba(245, 87, 108, 0.1);
}

.modal-header {
    background: linear-gradient(135deg, #2563eb 0%, #4f46e5 50%, #7c3aed 100%);
    padding: 3rem 2.5rem 2.5rem;
    border-radius: 25px 25px 0 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.modal-header::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.08) 0%, transparent 70%);
    animation: rotate 15s linear infinite;
}

.modal-icon {
    font-size: 4rem;
    display: block;
    margin-bottom: 1rem;
    position: relative;
    z-index: 1;
    filter: drop-shadow(0 4px 15px rgba(0, 0, 0, 0.2));
    animation: bounce 2s ease-in-out infinite;
}

.modal-title {
    color: white;
    font-size: 2rem;
    font-weight: 900;
    margin: 0;
    position: relative;
    z-index: 1;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
    letter-spacing: -1px;
}

.modal-body {
    padding: 2.5rem;
}

.modal-description {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--text-color);
    margin-bottom: 2rem;
}

.modal-details {
    background: linear-gradient(135deg, #f8fafc 0%, #fef3ff 100%);
    padding: 1.5rem;
    border-radius: 20px;
    margin-bottom: 2rem;
    border: 2px solid #e0e7ff;
}

.modal-details h4 {
    color: var(--dark-color);
    font-size: 1.2rem;
    margin-bottom: 1rem;
    font-weight: 700;
    background: linear-gradient(135deg, #667eea, #f093fb);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.modal-details p {
    color: #666;
    line-height: 1.7;
    margin-bottom: 0.5rem;
}

.modal-details ul {
    list-style: none;
    padding: 0;
    margin-top: 1rem;
}

.modal-details ul li {
    padding: 0.5rem 0;
    padding-left: 1.5rem;
    position: relative;
    color: #666;
}

.modal-details ul li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: #10b981;
    font-weight: bold;
    font-size: 1.2rem;
}

.modal-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 1rem;
}

.feature-badge {
    background: linear-gradient(135deg, #2563eb, #7c3aed);
    color: white;
    padding: 0.8rem 1rem;
    border-radius: 12px;
    font-size: 0.9rem;
    text-align: center;
    font-weight: 600;
    box-shadow: 0 2px 10px rgba(37, 99, 235, 0.2);
}

.modal-footer {
    padding: 2rem 2.5rem;
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    border-top: 2px solid #e2e8f0;
}

.modal-cta {
    flex: 1;
    min-width: 150px;
}

.modal-close-btn {
    min-width: 120px;
}

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

    .header-icons {
        margin-left: 1rem;
        gap: 0.5rem;
    }

    .header-icon {
        font-size: 1.3rem;
        width: 40px;
        height: 40px;
    }

    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background: white;
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: var(--shadow);
        padding: 2rem 0;
    }

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

    .hero-title {
        font-size: 2.2rem;
    }

    .hero-subtitle {
        font-size: 1.1rem;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }

    .hero-features {
        flex-direction: column;
        gap: 1rem;
    }

    .section-title {
        font-size: 1.8rem;
    }

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

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

    .contact-wrapper {
        grid-template-columns: 1fr;
    }

    .publication-item {
        flex-direction: column;
    }

    .services-grid,
    .tools-grid,
    .research-areas {
        grid-template-columns: 1fr;
    }

    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .social-links {
        justify-content: center;
    }

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

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

@media (max-width: 480px) {
    .hero-title {
        font-size: 1.8rem;
    }

    .hero-subtitle {
        font-size: 1rem;
    }

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

    .logo h1 {
        font-size: 1.3rem;
    }

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

    .hero-feature-item {
        font-size: 0.9rem;
        padding: 8px 15px;
    }
}