:root {
    --primary-color: #2c7a2c;
    --primary-light: #4a9b4a;
    --primary-dark: #1e5a1e;
    --secondary-color: #f7931e;
    --secondary-light: #ffa940;
    --accent-color: #e74c3c;
    --accent-light: #ff6b5a;
    --text-dark: #2c3e50;
    --text-light: #7f8c8d;
    --text-white: #ffffff;
    --bg-light: #f8f9fa;
    --bg-white: #ffffff;
    --border-light: #e9ecef;
    --shadow-light: rgba(0, 0, 0, 0.1);
    --shadow-medium: rgba(0, 0, 0, 0.15);
    --shadow-heavy: rgba(0, 0, 0, 0.25);
    --gradient-primary: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    --gradient-secondary: linear-gradient(135deg, var(--secondary-color), var(--secondary-light));
    --gradient-hero: linear-gradient(135deg, rgba(44, 122, 44, 0.95), rgba(74, 155, 74, 0.95));
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Poppins', sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    overflow-x: hidden;
}

/* Landing Page Styles */
.landing-page {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background: linear-gradient(135deg, #2c7a2c, #4a9b4a);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    transition: opacity 0.8s ease, visibility 0.8s ease;
}

.landing-page.hidden {
    opacity: 0;
    visibility: hidden;
}

.main-site {
    opacity: 0;
    transition: opacity 0.8s ease;
    display: none;
}

.main-site.visible {
    opacity: 1;
    display: block;
}

.landing-content {
    text-align: center;
    max-width: 1000px;
    padding: 0 20px;
    position: relative;
    z-index: 10;
}

.landing-header {
    margin-bottom: 3rem;
}

.eu-funding-text {
    font-size: 1.2rem;
    color: white;
    font-weight: 600;
    line-height: 1.6;
    margin: 0;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.landing-flags {
    display: flex;
    justify-content: center;
    gap: 4rem;
    margin-bottom: 3rem;
}

.flag-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
}

.flag {
    width: 300px;
    height: 200px;
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    transition: all 0.3s ease;
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.flag:hover {
    transform: scale(1.05);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.4);
}

.flag-label {
    color: white;
    font-weight: 600;
    font-size: 1.1rem;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

/* EU Flag */
.eu-flag {
    background: #003399;
    position: relative;
}

.stars-circle {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 120px;
    height: 120px;
}

.star {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) rotate(calc(var(--i) * 30deg)) translateY(-50px);
    width: 20px;
    height: 20px;
}

.star::before {
    content: '★';
    position: absolute;
    top: -10px;
    left: -10px;
    font-size: 20px;
    color: #ffcc00;
    text-align: center;
    line-height: 1;
}

/* Bulgaria Flag */
.bulgaria-flag {
    display: flex;
    flex-direction: column;
}

.stripe {
    height: 33.33%;
    width: 100%;
}

.stripe.white {
    background: #ffffff;
}

.stripe.green {
    background: #00966e;
}

.stripe.red {
    background: #d62612;
}

/* Logo Flag */
.logo-flag {
    background: #f8f9fa;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.logo-image {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    border-radius: 8px;
}

/* Flag images */
.flag-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: inherit;
}

/* Enter Button */
.enter-btn {
    background: linear-gradient(135deg, #2c7a2c, #4a9b4a);
    color: white;
    border: none;
    padding: 20px 40px;
    border-radius: 50px;
    font-size: 1.3rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(44, 122, 44, 0.3);
    z-index: 100;
    outline: none;
}

.enter-btn span {
    position: relative;
    z-index: 2;
    pointer-events: none;
}

.enter-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(44, 122, 44, 0.4);
}

.btn-shine {
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.6s ease;
    pointer-events: none;
}

.enter-btn:hover .btn-shine {
    left: 100%;
}

/* Diagonal Pattern */
.diagonal-pattern {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0.1;
    background: repeating-linear-gradient(
        45deg,
        transparent,
        transparent 10px,
        rgba(255, 255, 255, 0.1) 10px,
        rgba(255, 255, 255, 0.1) 20px
    );
    animation: diagonal-move 20s linear infinite;
    z-index: 1;
    pointer-events: none;
}

@keyframes diagonal-move {
    0% {
        transform: translateX(-20px) translateY(-20px);
    }
    100% {
        transform: translateX(20px) translateY(20px);
    }
}

/* EU Funding Header */
.eu-funding-header {
    background: linear-gradient(135deg, #2c7a2c, #4a9b4a);
    min-height: 15vh;
    display: flex;
    align-items: center;
    padding: 2rem 0;
    position: relative;
}

.eu-header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
}

.eu-header-text-container {
    flex: 1;
}

.eu-header-title {
    color: white;
    font-size: 1.5rem;
    font-weight: 700;
    line-height: 1.3;
    margin: 0 0 0.5rem 0;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.eu-header-description {
    color: white;
    font-size: 1rem;
    font-weight: 400;
    line-height: 1.5;
    margin: 0;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.eu-header-flags {
    display: flex;
    gap: 1rem;
    flex-shrink: 0;
}

.header-flag {
    width: 80px;
    height: 53px;
    border-radius: 5px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
    transition: all 0.3s ease;
}

.header-flag:hover {
    transform: scale(1.05);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.4);
}

/* Small EU Flag */
.eu-flag-small {
    background: #003399;
    position: relative;
}

.stars-circle-small {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 32px;
    height: 32px;
}

.star-small {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) rotate(calc(var(--i) * 30deg)) translateY(-14px);
    width: 10px;
    height: 10px;
}

.star-small::before {
    content: '★';
    position: absolute;
    top: -5px;
    left: -5px;
    font-size: 10px;
    color: #ffcc00;
    text-align: center;
    line-height: 1;
}

/* Small Bulgaria Flag */
.bulgaria-flag-small {
    display: flex;
    flex-direction: column;
}

.stripe-small {
    height: 33.33%;
    width: 100%;
}

.stripe-small.white {
    background: #ffffff;
}

.stripe-small.green {
    background: #00966e;
}

.stripe-small.red {
    background: #d62612;
}

/* Small Logo Flag */
.logo-flag-small {
    background: #f8f9fa;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 8px;
}

.logo-image-small {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    border-radius: 3px;
}

.flag-image-small {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: inherit;
}

/* EU Funding Footer Section */
.eu-funding-section {
    background: linear-gradient(135deg, #2c7a2c, #4a9b4a);
    padding: 3rem 0;
    margin-top: 2rem;
}

.eu-funding-content {
    display: flex;
    justify-content: center;
    gap: 3rem;
    margin-bottom: 2rem;
}

.footer-flag-container {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.footer-flag {
    width: 120px;
    height: 80px;
    border-radius: 8px;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
    transition: all 0.3s ease;
}

.footer-flag:hover {
    transform: scale(1.05);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.4);
}

/* Footer EU Flag */
.eu-flag-footer {
    background: #003399;
    position: relative;
}

.stars-circle-footer {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 48px;
    height: 48px;
}

.star-footer {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) rotate(calc(var(--i) * 30deg)) translateY(-20px);
    width: 14px;
    height: 14px;
}

.star-footer::before {
    content: '★';
    position: absolute;
    top: -7px;
    left: -7px;
    font-size: 14px;
    color: #ffcc00;
    text-align: center;
    line-height: 1;
}

/* Footer Bulgaria Flag */
.bulgaria-flag-footer {
    display: flex;
    flex-direction: column;
}

.stripe-footer {
    height: 33.33%;
    width: 100%;
}

.stripe-footer.white {
    background: #ffffff;
}

.stripe-footer.green {
    background: #00966e;
}

.stripe-footer.red {
    background: #d62612;
}

/* Footer Logo Flag */
.logo-flag-footer {
    background: #f8f9fa;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 12px;
}

.logo-image-footer {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    border-radius: 4px;
}

.flag-image-footer {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: inherit;
}

/* EU Funding Text */
.eu-funding-text {
    text-align: center;
    color: white;
}

.eu-funding-main {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
    color: white;
}

.eu-funding-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.eu-funding-description {
    font-size: 1.1rem;
    line-height: 1.6;
    max-width: 800px;
    margin: 0 auto;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

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

/* Navigation Styles */
.navbar {
    position: relative;
    width: 100%;
    background: rgba(255, 255, 255, 1);
    backdrop-filter: blur(20px);
    z-index: 1000;
    transition: all 0.3s ease;
    border-bottom: 1px solid var(--border-light);
    box-shadow: 0 2px 10px var(--shadow-light);
}

.main-site .navbar {
    position: relative;
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 1);
    box-shadow: 0 5px 30px var(--shadow-light);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

.nav-logo {
    display: flex;
    align-items: center;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    text-decoration: none;
}

.nav-logo i {
    margin-right: 10px;
    font-size: 1.8rem;
    animation: rotate 3s linear infinite;
}

/* Language Toggle */
.language-toggle {
    margin-left: auto;
    margin-right: 2rem;
    padding-left: 3rem;
}

.lang-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: var(--gradient-primary);
    color: var(--text-white);
    border: none;
    border-radius: 25px;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.3s ease;
    box-shadow: 0 5px 15px rgba(44, 122, 44, 0.3);
}

.lang-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(44, 122, 44, 0.4);
}

.lang-btn i {
    font-size: 1.1rem;
}

#currentLang {
    font-size: 0.9rem;
    font-weight: 700;
}

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

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

.nav-link {
    text-decoration: none;
    color: var(--text-dark);
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 15px;
    border-radius: 25px;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    white-space: nowrap;
}

.nav-link::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: var(--gradient-primary);
    transition: all 0.3s ease;
    z-index: -1;
}

.nav-link:hover {
    color: var(--text-white);
    transform: translateY(-2px);
}

.nav-link:hover::before {
    left: 0;
}

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

.bar {
    width: 25px;
    height: 3px;
    background-color: var(--primary-color);
    margin: 3px 0;
    transition: 0.3s;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    background: var(--gradient-hero);
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="25" cy="25" r="1" fill="%23ffffff" opacity="0.1"/><circle cx="75" cy="75" r="1" fill="%23ffffff" opacity="0.1"/><circle cx="50" cy="10" r="1" fill="%23ffffff" opacity="0.1"/><circle cx="10" cy="60" r="1" fill="%23ffffff" opacity="0.1"/><circle cx="90" cy="30" r="1" fill="%23ffffff" opacity="0.1"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
    animation: float 20s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(1deg); }
}

.floating-particles {
    position: absolute;
    width: 100%;
    height: 100%;
    overflow: hidden;
}

.floating-particles::before,
.floating-particles::after {
    content: '';
    position: absolute;
    width: 200px;
    height: 200px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    animation: particle-float 15s ease-in-out infinite;
}

.floating-particles::before {
    top: 20%;
    left: 10%;
    animation-delay: 0s;
}

.floating-particles::after {
    top: 60%;
    right: 10%;
    animation-delay: 7s;
}

@keyframes particle-float {
    0%, 100% { transform: translateY(0px) scale(1); opacity: 0.7; }
    50% { transform: translateY(-50px) scale(1.1); opacity: 1; }
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    position: relative;
    z-index: 2;
}

.hero-title {
    font-family: 'Playfair Display', serif;
    font-size: 4rem;
    font-weight: 700;
    color: var(--text-white);
    margin-bottom: 1.5rem;
    line-height: 1.1;
}

.title-line {
    display: block;
    animation: slideInLeft 1s ease forwards;
    opacity: 0;
    transform: translateX(-50px);
}

.title-line:nth-child(1) { animation-delay: 0.2s; }
.title-line:nth-child(2) { animation-delay: 0.4s; }
.title-line:nth-child(3) { animation-delay: 0.6s; }

.highlight {
    background: var(--gradient-secondary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

@keyframes slideInLeft {
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.hero-subtitle {
    font-size: 1.25rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 2.5rem;
    animation: fadeInUp 1s ease 0.8s forwards;
    opacity: 0;
    transform: translateY(30px);
}

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

.hero-buttons {
    display: flex;
    gap: 1.5rem;
    animation: fadeInUp 1s ease 1s forwards;
    opacity: 0;
    transform: translateY(30px);
}

.btn-primary, .btn-secondary {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 15px 30px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: var(--gradient-secondary);
    color: var(--text-white);
    box-shadow: 0 10px 30px rgba(247, 147, 30, 0.3);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.2);
    color: var(--text-white);
    border: 2px solid rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(10px);
}

.btn-primary:hover, .btn-secondary:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.2);
}

/* Molecular Structure Animation */
.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
    animation: fadeInRight 1s ease 0.5s forwards;
    opacity: 0;
    transform: translateX(50px);
}

@keyframes fadeInRight {
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.molecular-structure {
    position: relative;
    width: 300px;
    height: 300px;
}

.molecule {
    position: relative;
    width: 100%;
    height: 100%;
}

.atom {
    position: absolute;
    border-radius: 50%;
    background: var(--gradient-secondary);
    box-shadow: 0 0 30px rgba(247, 147, 30, 0.5);
}

.atom.center {
    width: 60px;
    height: 60px;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation: pulse 2s ease-in-out infinite;
}

.atom.orbit-1 {
    width: 20px;
    height: 20px;
    top: 20%;
    left: 50%;
    transform: translateX(-50%);
    animation: orbit-1 4s linear infinite;
}

.atom.orbit-2 {
    width: 15px;
    height: 15px;
    bottom: 20%;
    right: 20%;
    animation: orbit-2 6s linear infinite;
}

.atom.orbit-3 {
    width: 18px;
    height: 18px;
    left: 20%;
    top: 40%;
    animation: orbit-3 5s linear infinite;
}

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

@keyframes orbit-1 {
    from { transform: translateX(-50%) rotate(0deg) translateX(100px) rotate(0deg); }
    to { transform: translateX(-50%) rotate(360deg) translateX(100px) rotate(-360deg); }
}

@keyframes orbit-2 {
    from { transform: rotate(0deg) translateX(120px) rotate(0deg); }
    to { transform: rotate(360deg) translateX(120px) rotate(-360deg); }
}

@keyframes orbit-3 {
    from { transform: rotate(0deg) translateX(110px) rotate(0deg); }
    to { transform: rotate(360deg) translateX(110px) rotate(-360deg); }
}

.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    animation: bounce 2s infinite;
}

.scroll-arrow {
    color: var(--text-white);
    font-size: 1.5rem;
    opacity: 0.8;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateX(-50%) translateY(0); }
    40% { transform: translateX(-50%) translateY(-10px); }
    60% { transform: translateX(-50%) translateY(-5px); }
}

/* Section Styles */
.section {
    padding: 100px 0;
    position: relative;
}

.section:nth-child(even) {
    background: var(--bg-light);
}

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

.section-tag {
    display: inline-block;
    padding: 8px 20px;
    background: var(--gradient-primary);
    color: var(--text-white);
    border-radius: 25px;
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 1rem;
    animation: fadeInUp 0.6s ease;
}

.section-title {
    font-family: 'Playfair Display', serif;
    font-size: 3rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 1rem;
    animation: fadeInUp 0.6s ease 0.2s both;
}

.section-description {
    font-size: 1.1rem;
    color: var(--text-light);
    max-width: 600px;
    margin: 0 auto;
    animation: fadeInUp 0.6s ease 0.4s both;
}

/* About Section */
.about-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-bottom: 4rem;
}

.about-card {
    background: var(--bg-white);
    padding: 2.5rem;
    border-radius: 20px;
    text-align: center;
    box-shadow: 0 10px 30px var(--shadow-light);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.about-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 4px;
    background: var(--gradient-primary);
    transition: all 0.3s ease;
}

.about-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 50px var(--shadow-medium);
}

.about-card:hover::before {
    left: 0;
}

.card-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 1.5rem;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: var(--text-white);
    animation: rotate-pause 4s ease-in-out infinite;
}

@keyframes rotate-pause {
    0%, 100% { transform: rotate(0deg); }
    25%, 75% { transform: rotate(5deg); }
    50% { transform: rotate(-5deg); }
}

.about-card h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 1rem;
}

.about-card p {
    color: var(--text-light);
    line-height: 1.7;
}

.problem-section {
    background: var(--bg-white);
    padding: 3rem;
    border-radius: 20px;
    box-shadow: 0 10px 30px var(--shadow-light);
}

.problem-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}

.problem-text h3 {
    font-size: 2rem;
    color: var(--text-dark);
    margin-bottom: 1.5rem;
}

.problem-list {
    list-style: none;
}

.problem-list li {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 1rem;
    color: var(--text-light);
}

.problem-list i {
    color: var(--accent-color);
    font-size: 1.1rem;
}

.disease-cycle {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
}

.cycle-step {
    background: var(--bg-light);
    padding: 1.5rem;
    border-radius: 15px;
    text-align: center;
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.cycle-step.active,
.cycle-step:hover {
    background: var(--gradient-primary);
    color: var(--text-white);
    transform: scale(1.05);
    border-color: var(--primary-light);
}

.step-icon {
    width: 50px;
    height: 50px;
    margin: 0 auto 1rem;
    background: rgba(44, 122, 44, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--primary-color);
}

.cycle-step.active .step-icon,
.cycle-step:hover .step-icon {
    background: rgba(255, 255, 255, 0.2);
    color: var(--text-white);
}

/* Innovation Section */
.innovation-content {
    max-width: 1000px;
    margin: 0 auto;
}

.tech-card {
    background: var(--bg-white);
    padding: 3rem;
    border-radius: 20px;
    box-shadow: 0 10px 30px var(--shadow-light);
    margin-bottom: 3rem;
    text-align: center;
}

.tech-header {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
    margin-bottom: 1.5rem;
}

.tech-header i {
    font-size: 2.5rem;
    color: var(--primary-color);
    animation: spin 3s linear infinite;
}

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

.tech-header h3 {
    font-size: 2rem;
    color: var(--text-dark);
}

.process-flow {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin: 3rem 0;
    flex-wrap: wrap;
    gap: 1rem;
}

.process-step {
    flex: 1;
    min-width: 200px;
    text-align: center;
}

.step-number {
    width: 60px;
    height: 60px;
    margin: 0 auto 1rem;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-white);
    font-size: 1.5rem;
    font-weight: 700;
    animation: pulse-step 2s ease-in-out infinite;
}

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

.process-step h4 {
    color: var(--text-dark);
    margin-bottom: 0.5rem;
    font-size: 1.2rem;
}

.process-step p {
    color: var(--text-light);
    font-size: 0.9rem;
}

.process-arrow {
    color: var(--primary-color);
    font-size: 1.5rem;
    animation: slide-arrow 2s ease-in-out infinite;
}

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

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

.benefit-card {
    background: var(--bg-white);
    padding: 2rem;
    border-radius: 15px;
    text-align: center;
    box-shadow: 0 5px 20px var(--shadow-light);
    transition: all 0.3s ease;
    border: 1px solid var(--border-light);
}

.benefit-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px var(--shadow-medium);
    border-color: var(--primary-color);
}

.benefit-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto 1rem;
    background: var(--gradient-secondary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--text-white);
}

.benefit-card h4 {
    color: var(--text-dark);
    margin-bottom: 1rem;
    font-size: 1.3rem;
}

.benefit-card p {
    color: var(--text-light);
    font-size: 0.95rem;
}

/* Science Section */
.research-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-bottom: 4rem;
}

.research-phase {
    background: var(--bg-white);
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 10px 30px var(--shadow-light);
    transition: all 0.3s ease;
}

.research-phase:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 50px var(--shadow-medium);
}

.phase-header {
    background: var(--gradient-primary);
    color: var(--text-white);
    padding: 2rem;
    text-align: center;
}

.phase-number {
    display: inline-block;
    width: 80px;
    height: 80px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 1rem;
    margin: 0 auto 1rem;
}

.phase-header h3 {
    font-size: 1.5rem;
    font-weight: 600;
}

.phase-content {
    padding: 2rem;
}

.phase-content ul {
    list-style: none;
}

.phase-content li {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 1rem;
    color: var(--text-light);
}

.phase-content i {
    color: var(--primary-color);
    font-size: 1.1rem;
}

.experimental-design {
    background: var(--bg-white);
    padding: 3rem;
    border-radius: 20px;
    box-shadow: 0 10px 30px var(--shadow-light);
}

.experimental-design h3 {
    text-align: center;
    font-size: 2rem;
    color: var(--text-dark);
    margin-bottom: 2rem;
}

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

.variant {
    text-align: center;
    padding: 2rem;
    border-radius: 15px;
    transition: all 0.3s ease;
    border: 2px solid var(--border-light);
}

.variant:hover {
    transform: translateY(-5px);
    border-color: var(--primary-color);
    box-shadow: 0 15px 30px var(--shadow-light);
}

.variant-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 1rem;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: var(--text-white);
}

.variant-icon.treatment {
    background: var(--gradient-primary);
}

.variant-icon.conventional {
    background: var(--gradient-secondary);
}

.variant-icon.control {
    background: linear-gradient(135deg, var(--accent-color), var(--accent-light));
}

.variant h4 {
    color: var(--text-dark);
    margin-bottom: 0.5rem;
    font-size: 1.3rem;
}

.variant p {
    color: var(--text-dark);
    font-weight: 600;
    margin-bottom: 1rem;
}

.variant-desc {
    color: var(--text-light);
    font-size: 0.9rem;
}

/* Results Section */
.results-showcase {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-bottom: 4rem;
}

.result-card {
    background: var(--bg-white);
    padding: 2.5rem;
    border-radius: 20px;
    box-shadow: 0 10px 30px var(--shadow-light);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.result-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 5px;
    transition: all 0.3s ease;
}

.result-card.primary::before { background: var(--gradient-primary); }
.result-card.secondary::before { background: var(--gradient-secondary); }
.result-card.tertiary::before { background: linear-gradient(135deg, var(--accent-color), var(--accent-light)); }
.result-card.quaternary::before { background: linear-gradient(135deg, #9b59b6, #8e44ad); }

.result-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 50px var(--shadow-medium);
}

.result-icon {
    width: 70px;
    height: 70px;
    margin-bottom: 1.5rem;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    color: var(--text-white);
}

.result-card.primary .result-icon { background: var(--gradient-primary); }
.result-card.secondary .result-icon { background: var(--gradient-secondary); }
.result-card.tertiary .result-icon { background: linear-gradient(135deg, var(--accent-color), var(--accent-light)); }
.result-card.quaternary .result-icon { background: linear-gradient(135deg, #9b59b6, #8e44ad); }

.result-content h3 {
    color: var(--text-dark);
    margin-bottom: 1rem;
    font-size: 1.4rem;
}

.result-content p {
    color: var(--text-light);
    line-height: 1.7;
}

.impact-metrics {
    background: var(--bg-white);
    padding: 3rem;
    border-radius: 20px;
    box-shadow: 0 10px 30px var(--shadow-light);
}

.impact-metrics h3 {
    text-align: center;
    font-size: 2rem;
    color: var(--text-dark);
    margin-bottom: 2rem;
}

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

.metric {
    text-align: center;
    padding: 2rem;
    border-radius: 15px;
    background: var(--bg-light);
    transition: all 0.3s ease;
}

.metric:hover {
    background: var(--primary-color);
    color: var(--text-white);
    transform: translateY(-5px);
}

.metric-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto 1rem;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--text-white);
}

.metric:hover .metric-icon {
    background: rgba(255, 255, 255, 0.2);
}

.metric h4 {
    margin-bottom: 1rem;
    font-size: 1.3rem;
}

.metric p {
    font-size: 0.95rem;
    opacity: 0.9;
}

/* Contact Section */
.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    max-width: 1000px;
    margin: 0 auto;
}

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

.info-card {
    background: var(--bg-white);
    padding: 2rem;
    border-radius: 15px;
    box-shadow: 0 5px 20px var(--shadow-light);
    transition: all 0.3s ease;
}

.info-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px var(--shadow-medium);
}

.info-icon {
    width: 60px;
    height: 60px;
    margin-bottom: 1rem;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--text-white);
}

.info-card h3 {
    color: var(--text-dark);
    margin-bottom: 1rem;
    font-size: 1.3rem;
}

.info-card p {
    color: var(--text-light);
    line-height: 1.6;
    margin-bottom: 0.5rem;
}

.contact-form {
    background: var(--bg-white);
    padding: 3rem;
    border-radius: 20px;
    box-shadow: 0 10px 30px var(--shadow-light);
}

.form-group {
    margin-bottom: 2rem;
    position: relative;
}

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

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 15px 50px 15px 15px;
    border: 2px solid var(--border-light);
    border-radius: 10px;
    font-size: 1rem;
    transition: all 0.3s ease;
    background: var(--bg-light);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    background: var(--bg-white);
    box-shadow: 0 0 0 3px rgba(44, 122, 44, 0.1);
}

.form-group i {
    position: absolute;
    right: 15px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-light);
    margin-top: 12px;
}

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

.submit-btn {
    width: 100%;
    padding: 15px 30px;
    background: var(--gradient-primary);
    color: var(--text-white);
    border: none;
    border-radius: 50px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.submit-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(44, 122, 44, 0.3);
}

.submit-btn:active {
    transform: translateY(-1px);
}

/* Partners Section */
.partners {
    background: var(--bg-light);
}

.partners-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 3rem;
    margin-bottom: 4rem;
}

.partner-card {
    background: var(--bg-white);
    padding: 3rem;
    border-radius: 20px;
    box-shadow: 0 10px 30px var(--shadow-light);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.partner-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 5px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transition: all 0.3s ease;
}

.partner-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 50px var(--shadow-medium);
}

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

.partner-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 2rem;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: var(--text-white);
    animation: float-partner 3s ease-in-out infinite;
}

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

.partner-card h3 {
    font-size: 1.5rem;
    color: var(--text-dark);
    margin-bottom: 0.5rem;
    text-align: center;
}

.partner-type {
    text-align: center;
    color: var(--primary-color);
    font-weight: 600;
    margin-bottom: 1.5rem;
    text-transform: uppercase;
    font-size: 0.9rem;
    letter-spacing: 1px;
}

.partner-card p {
    color: var(--text-light);
    line-height: 1.7;
    margin-bottom: 2rem;
    text-align: justify;
}

.partner-achievements {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    justify-content: center;
}

.achievement-badge {
    background: var(--gradient-secondary);
    color: var(--text-white);
    padding: 5px 12px;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 600;
    white-space: nowrap;
}

.collaboration-info {
    background: var(--bg-white);
    padding: 3rem;
    border-radius: 20px;
    box-shadow: 0 10px 30px var(--shadow-light);
    text-align: center;
}

.collaboration-info h3 {
    font-size: 2rem;
    color: var(--text-dark);
    margin-bottom: 1.5rem;
}

.collaboration-info p {
    color: var(--text-light);
    line-height: 1.8;
    font-size: 1.1rem;
    max-width: 800px;
    margin: 0 auto;
}

/* Video Section */
.videos {
    padding: 80px 0;
    background: var(--bg-light);
}

.videos-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(500px, 1fr));
    gap: 40px;
    margin-top: 60px;
}

.video-container {
    background: var(--bg-white);
    border-radius: 20px;
    padding: 30px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.video-container:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
}

.video-title {
    color: var(--primary-color);
    font-size: 1.3rem;
    margin-bottom: 20px;
    font-weight: 600;
    text-align: center;
}

.video-wrapper {
    position: relative;
    width: 100%;
    background: #000;
    border-radius: 15px;
    overflow: hidden;
}

.video-player {
    width: 100%;
    height: auto;
    max-height: 400px;
    display: block;
    border-radius: 15px;
}

/* Responsive for videos */
@media (max-width: 1024px) {
    .videos-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .video-container {
        padding: 20px;
    }
}

@media (max-width: 768px) {
    .videos-grid {
        margin-top: 40px;
    }
    
    .video-title {
        font-size: 1.1rem;
    }
    
    .video-player {
        max-height: 250px;
    }
    
    .fullscreen-btn {
        padding: 8px 12px;
        font-size: 1rem;
    }
}

@media (max-width: 480px) {
    .videos {
        padding: 60px 0;
    }
    
    .video-container {
        padding: 15px;
        border-radius: 15px;
    }
    
    .video-player {
        max-height: 200px;
    }
    
    .fullscreen-btn {
        bottom: 10px;
        right: 10px;
    }
}

/* Footer */
.footer {
    background: var(--text-dark);
    color: var(--text-white);
    padding: 3rem 0 1rem;
}

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

.footer-logo {
    display: flex;
    align-items: center;
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.footer-logo i {
    margin-right: 10px;
    color: var(--primary-light);
}

.footer-section h4 {
    margin-bottom: 1rem;
    color: var(--primary-light);
}

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

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

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

.footer-section ul li a:hover {
    color: var(--primary-light);
    padding-left: 5px;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.7);
}

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

    .language-toggle {
        margin-left: 1rem;
        margin-right: 1rem;
    }

    .lang-btn {
        padding: 6px 12px;
        font-size: 0.9rem;
    }

    .nav-menu {
        position: absolute;
        left: -100%;
        top: 80px;
        flex-direction: column;
        background-color: rgba(255, 255, 255, 0.98);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 27px var(--shadow-light);
        backdrop-filter: blur(20px);
        padding: 2rem 0;
        z-index: 999;
    }

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

    .nav-menu li {
        margin: 1rem 0;
    }

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

    .hamburger.active .bar:nth-child(1) {
        transform: translateY(9px) rotate(45deg);
    }

    .hamburger.active .bar:nth-child(3) {
        transform: translateY(-9px) rotate(-45deg);
    }

    /* Landing Page Mobile */
    .landing-flags {
        flex-direction: column;
        gap: 2rem;
        align-items: center;
    }

    .flag {
        width: 250px;
        height: 167px;
    }

    .eu-funding-text {
        font-size: 1rem;
    }

    .enter-btn {
        padding: 15px 30px;
        font-size: 1.1rem;
    }

    /* EU Header Mobile */
    .eu-header-content {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }

    .eu-header-title {
        font-size: 1.2rem;
    }

    .eu-header-description {
        font-size: 0.9rem;
    }

    .eu-header-flags {
        gap: 0.5rem;
    }

    .header-flag {
        width: 60px;
        height: 40px;
    }

    /* EU Footer Mobile */
    .eu-funding-content {
        gap: 2rem;
    }

    .footer-flag {
        width: 100px;
        height: 67px;
    }

    .eu-funding-main {
        font-size: 1.1rem;
    }

    .eu-funding-title {
        font-size: 1.3rem;
    }

    .eu-funding-description {
        font-size: 1rem;
    }

    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 2rem;
    }

    .hero-title {
        font-size: 3rem;
    }

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

    .btn-primary, .btn-secondary {
        width: 100%;
        max-width: 300px;
    }

    .section-title {
        font-size: 2.5rem;
    }

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

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

    .process-flow {
        flex-direction: column;
    }

    .process-arrow {
        transform: rotate(90deg);
    }

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

    .hero-visual {
        order: -1;
    }

    .molecular-structure {
        width: 250px;
        height: 250px;
    }
}

@media (max-width: 480px) {
    /* Landing Page Small Mobile */
    .landing-flags {
        gap: 1.5rem;
    }

    .flag {
        width: 200px;
        height: 133px;
    }

    .eu-funding-text {
        font-size: 0.9rem;
    }

    .flag-label {
        font-size: 1rem;
    }

    /* EU Header Small Mobile */
    .eu-header-title {
        font-size: 1.1rem;
    }

    .eu-header-description {
        font-size: 0.85rem;
    }

    .header-flag {
        width: 50px;
        height: 33px;
    }

    /* EU Footer Small Mobile */
    .eu-funding-content {
        gap: 1.5rem;
    }

    .footer-flag {
        width: 80px;
        height: 53px;
    }

    .eu-funding-main {
        font-size: 1rem;
    }

    .eu-funding-title {
        font-size: 1.2rem;
    }

    .eu-funding-description {
        font-size: 0.9rem;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .section-title {
        font-size: 2rem;
    }

    .container {
        padding: 0 15px;
    }

    .about-card,
    .tech-card,
    .contact-form {
        padding: 1.5rem;
    }

    .disease-cycle {
        grid-template-columns: 1fr;
    }

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

    .partner-card {
        padding: 2rem;
    }

    .achievement-badge {
        font-size: 0.75rem;
        padding: 4px 10px;
    }
}