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

:root {
    --primary-color: #3b82f6;
    --secondary-color: #60a5fa;
    --dark-bg: #0a0e27;
    --light-bg: #1a1f3a;
    --text-dark: #e0e7ff;
    --text-light: #a5b4fc;
    --text-light-dark: #cbd5e1;
    --border-color: #2d3748;
    --transition: all 0.3s ease;
}

body {
    font-family: 'Lato', sans-serif;
    line-height: 1.6;
    color: var(--text-light-dark);
    background-color: var(--dark-bg);
}

/* Navigation Bar */
.navbar {
    background: rgba(10, 14, 39, 0.95);
    backdrop-filter: blur(10px);
    padding: 1.2rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    border-bottom: 1px solid rgba(96, 165, 250, 0.1);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.8rem;
    font-weight: 700;
    color: white;
    letter-spacing: 1px;
    background: linear-gradient(135deg, #60a5fa 0%, #93c5fd 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-transform: uppercase;
    font-size: 1.2rem;
    letter-spacing: 2.5px;
    font-weight: 800;
}

.nav-center {
    font-size: 0.9rem;
    color: #a5b4fc;
    font-weight: 500;
    letter-spacing: 0.5px;
    white-space: nowrap;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 0.3rem;
}

.nav-link {
    color: white;
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    position: relative;
    padding: 0.4rem 0.8rem;
    border-radius: 4px;
    font-size: 0.9rem;
    letter-spacing: 0.3px;
    opacity: 0.7;
}

.nav-link::before {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 50%;
    width: 0;
    height: 2px;
    background: #60a5fa;
    transition: all 0.25s ease;
    transform: translateX(-50%);
}

.nav-link:hover {
    opacity: 1;
    color: #93c5fd;
}

.nav-link:hover::before {
    width: 50%;
}

.nav-link.active {
    opacity: 1;
    color: #93c5fd;
}

.nav-link.active::before {
    width: 50%;
}

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

.hamburger span {
    width: 25px;
    height: 2.5px;
    background-color: white;
    margin: 5px 0;
    transition: var(--transition);
    border-radius: 2px;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #0f172a 0%, #1a2744 100%);
    color: white;
    text-align: center;
    padding: 2rem;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    width: 400px;
    height: 400px;
    background: rgba(96, 165, 250, 0.1);
    border-radius: 50%;
    top: -100px;
    right: -100px;
    animation: float 6s ease-in-out infinite;
}

.hero::after {
    content: '';
    position: absolute;
    width: 300px;
    height: 300px;
    background: rgba(96, 165, 250, 0.05);
    border-radius: 50%;
    bottom: -50px;
    left: -50px;
    animation: float 8s ease-in-out infinite reverse;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(30px);
    }
}

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

.hero-badge {
    display: inline-block;
    background: rgba(96, 165, 250, 0.2);
    border: 1px solid rgba(96, 165, 250, 0.4);
    padding: 0.5rem 1rem;
    border-radius: 50px;
    font-size: 0.9rem;
    margin-bottom: 2rem;
    color: #93c5fd;
    font-weight: 500;
}

.hero-title {
    font-size: 4.5rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2);
    letter-spacing: -1px;
    line-height: 1.1;
}

.gradient-text {
    background: linear-gradient(135deg, #60a5fa 0%, #93c5fd 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.3rem;
    margin-bottom: 2rem;
    font-weight: 300;
    letter-spacing: 0.3px;
    opacity: 0.9;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.6;
}

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

.cta-button {
    border: none;
    padding: 1rem 2rem;
    font-size: 1rem;
    font-weight: 600;
    border-radius: 8px;
    cursor: pointer;
    transition: var(--transition);
    letter-spacing: 0.5px;
    font-family: inherit;
}

.cta-button.primary {
    background: linear-gradient(135deg, #60a5fa 0%, #93c5fd 100%);
    color: white;
    box-shadow: 0 10px 30px rgba(96, 165, 250, 0.3);
}

.cta-button.primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(96, 165, 250, 0.4);
}

.cta-button.secondary {
    background: transparent;
    color: white;
    border: 2px solid rgba(96, 165, 250, 0.5);
}

.cta-button.secondary:hover {
    background: rgba(96, 165, 250, 0.1);
    border-color: #93c5fd;
}

.hero-stats {
    display: flex;
    gap: 3rem;
    justify-content: center;
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid rgba(96, 165, 250, 0.2);
}

.stat {
    text-align: center;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: #93c5fd;
}

.stat-label {
    font-size: 0.9rem;
    color: #a5b4fc;
    margin-top: 0.5rem;
}

/* About Section */
.about {
    padding: 5rem 2rem;
    background-color: var(--dark-bg);
}

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

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

.section-header h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    text-align: center;
    color: var(--text-dark);
    font-weight: 700;
}

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

.about h2,
.credits h2 {
    font-size: 2.5rem;
    margin-bottom: 3rem;
    text-align: center;
    color: var(--text-dark);
    font-weight: 600;
}

/* Features Section */
.features {
    padding: 5rem 2rem;
    background-color: var(--dark-bg);
}

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

.feature-card {
    background: var(--light-bg);
    padding: 2.5rem;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
    transition: var(--transition);
    border: 1px solid var(--border-color);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, #60a5fa, transparent);
    opacity: 0;
    transition: var(--transition);
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 8px 30px rgba(96, 165, 250, 0.2);
    border-color: #60a5fa;
}

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

.feature-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    display: inline-block;
}

.feature-card h3 {
    font-size: 1.4rem;
    margin-bottom: 1rem;
    color: var(--text-dark);
    font-weight: 700;
}

.feature-card p {
    color: var(--text-light);
    line-height: 1.8;
    font-size: 0.95rem;
}

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

.about-card {
    background: var(--light-bg);
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
    transition: var(--transition);
    text-align: center;
    border: 1px solid var(--border-color);
}

.about-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.12);
}

.card-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

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

.about-card p {
    color: var(--text-light);
    line-height: 1.8;
}

/* Credits Section */
.credits {
    padding: 5rem 2rem;
    background-color: var(--dark-bg);
}

.credits-content {
    max-width: 600px;
    margin: 0 auto;
    text-align: center;
    padding: 3rem;
    background: var(--light-bg);
    border-radius: 12px;
    border: 1px solid var(--border-color);
}

.credits-content p {
    font-size: 1.1rem;
    margin-bottom: 1rem;
    color: var(--text-light);
}

.credits-content strong {
    color: var(--secondary-color);
    font-size: 1.3rem;
    font-weight: 600;
}

/* Modal Styles */
.modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    animation: fadeIn 0.3s ease;
}

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

.modal-content {
    background-color: var(--light-bg);
    margin: 5% auto;
    padding: 2rem;
    border-radius: 12px;
    width: 90%;
    max-width: 600px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5);
    animation: slideDown 0.3s ease;
    max-height: 90vh;
    overflow-y: auto;
    border: 1px solid var(--border-color);
}

@keyframes slideDown {
    from {
        transform: translateY(-50px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.modal-content h2 {
    margin-bottom: 1.5rem;
    color: var(--secondary-color);
    font-size: 1.8rem;
    font-weight: 600;
}

.close {
    color: var(--text-light);
    float: right;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
    transition: var(--transition);
}

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

/* Form Styles */
.form-group {
    margin-bottom: 1.5rem;
}

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

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-size: 1rem;
    font-family: inherit;
    transition: var(--transition);
    background-color: #0f172a;
    color: var(--text-light);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--secondary-color);
    box-shadow: 0 0 0 3px rgba(96, 165, 250, 0.1);
}

.checkbox-group {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 1rem;
}

.checkbox-label {
    display: flex;
    align-items: center;
    cursor: pointer;
    font-weight: 500;
    color: var(--text-light);
}

.checkbox-label input[type="checkbox"] {
    width: auto;
    margin-right: 0.5rem;
    cursor: pointer;
    accent-color: var(--secondary-color);
}

.submit-btn {
    width: 100%;
    padding: 0.75rem;
    background: linear-gradient(135deg, #3b82f6 0%, #60a5fa 100%);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    letter-spacing: 1px;
}

.submit-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(96, 165, 250, 0.3);
}

.submit-btn:active {
    transform: translateY(0);
}

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

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

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

    .nav-link {
        padding: 1rem;
        display: inline-block;
        width: 100%;
        border-radius: 0;
    }

    .nav-link::before {
        display: none;
    }

    .nav-link.active {
        background-color: rgba(96, 165, 250, 0.3);
        border-left: 4px solid #93c5fd;
    }

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

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

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

    .about h2,
    .credits h2 {
        font-size: 2rem;
    }

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

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

    .modal-content {
        width: 95%;
        margin: 10% auto;
        padding: 1.5rem;
    }

    .checkbox-group {
        grid-template-columns: 1fr;
    }

    .hero-stats {
        gap: 2rem;
        flex-wrap: wrap;
    }
}

@media (max-width: 480px) {
    .nav-container {
        padding: 0 1rem;
    }

    .logo {
        font-size: 1.5rem;
    }

    .hero {
        padding: 1rem;
    }

    .hero-title {
        font-size: 1.8rem;
        line-height: 1.2;
    }

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

    .hero-badge {
        font-size: 0.8rem;
    }

    .hero-buttons {
        flex-direction: column;
        gap: 0.8rem;
    }

    .cta-button {
        width: 100%;
        padding: 0.8rem 1.5rem;
        font-size: 0.95rem;
    }

    .hero-stats {
        flex-direction: column;
        gap: 1.5rem;
    }

    .stat-number {
        font-size: 1.8rem;
    }

    .about,
    .credits {
        padding: 3rem 1rem;
    }

    .about h2,
    .credits h2 {
        font-size: 1.5rem;
    }

    .about-card {
        padding: 1.5rem;
    }

    .card-icon {
        font-size: 2.5rem;
    }

    .feature-card {
        padding: 1.5rem;
    }

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

    .modal-content {
        margin: 15% auto;
    }
}