:root {
    --primary: #2DD4BF; /* Light teal */
    --primary-dark: #0D9488;
    --secondary: #22D3EE; /* Light blue */
    --accent: #10B981; /* Emerald */
    --dark-bg: #0F172A;
    --dark-card: #1E293B;
    --dark-text: #CBD5E1;
    --light-text: #F8FAFC;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.3);
    --gradient: linear-gradient(135deg, var(--primary), var(--secondary));
}

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

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

/* Starry Background */
#stars-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    overflow: hidden;
}

.star {
    position: absolute;
    background-color: white;
    border-radius: 50%;
    animation: twinkle var(--duration) infinite ease-in-out;
}

@keyframes twinkle {
    0%, 100% { opacity: 0.2; }
    50% { opacity: 1; }
}

/* Header & Navigation */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: 0.2rem 5%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 1000;
    background-color: rgba(15, 23, 42, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(45, 212, 191, 0.1);
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--light-text);
    text-decoration: none;
}

.logo i {
    color: var(--primary);
    font-size: 2.2rem;
}

.logo span {
    /* background: var(--gradient); */
    background: white;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

nav a {
    color: var(--dark-text);
    text-decoration: none;
    font-weight: 500;
    font-size: 1.1rem;
    transition: var(--transition);
    position: relative;
    padding: 5px 0;
}

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

nav a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient);
    transition: var(--transition);
}

nav a:hover::after {
    width: 100%;
}

.auth-buttons {
    display: flex;
    gap: 1rem;
}

.btn {
    padding: 0.8rem 1.8rem;
    border-radius: 10px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    font-size: 1rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

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

.btn-signin:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 20px rgba(0, 0, 0, 0.4);
}

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

.btn-outline:hover {
    background: rgba(45, 212, 191, 0.1);
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: var(--light-text);
    font-size: 1.5rem;
    cursor: pointer;
}

/* Hero Section */
.hero {
    padding: 12rem 5% 8rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 4rem;
    max-width: 1400px;
    margin: 0 auto;
}

.hero-content {
    flex: 1;
    animation: fadeInUp 1s ease-out;
}

.hero-content h1 {
    font-size: 3.5rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1.5rem;
    color: var(--light-text);
}

.hero-content h1 span {
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-content p {
    font-size: 1.2rem;
    margin-bottom: 2.5rem;
    max-width: 600px;
    /* opacity: 0.9; */
}

.hero-buttons {
    display: flex;
    gap: 1.5rem;
    margin-bottom: 3rem;
}

.hero-image {
    flex: 1;
    position: relative;
    animation: float 6s ease-in-out infinite;
}

.hero-image img {
    width: 100%;
    border-radius: 20px;
    box-shadow: var(--shadow);
    border: 1px solid rgba(45, 212, 191, 0.2);
}

.floating-elements {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
}

.floating-element {
    position: absolute;
    background: rgba(45, 212, 191, 0.1);
    border-radius: 10px;
    padding: 15px;
    backdrop-filter: blur(5px);
    border: 1px solid rgba(45, 212, 191, 0.2);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
    animation: float 4s ease-in-out infinite;
}

.floating-element:nth-child(1) {
    top: -20px;
    left: -20px;
    animation-delay: 0s;
}

.floating-element:nth-child(2) {
    bottom: 30px;
    right: -30px;
    animation-delay: 1s;
}

.floating-element:nth-child(3) {
    bottom: -10px;
    left: 50px;
    animation-delay: 2s;
}

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

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

/* Stats */
.stats {
    display: flex;
    justify-content: space-around;
    max-width: 1200px;
    margin: 0 auto 5rem;
    padding: 2rem;
    background: rgba(30, 41, 59, 0.5);
    border-radius: 20px;
    border: 1px solid rgba(45, 212, 191, 0.1);
    backdrop-filter: blur(10px);
}

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

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.5rem;
}

.stat-text {
    font-size: 1rem;
    opacity: 0.8;
}

/* Features Section */
.features {
    padding: 6rem 5%;
    max-width: 1400px;
    margin: 0 auto;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: var(--light-text);
}

.section-subtitle {
    text-align: center;
    font-size: 1.2rem;
    margin-bottom: 4rem;
    opacity: 0.8;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.feature-card {
    background: var(--dark-card);
    padding: 2.5rem;
    border-radius: 20px;
    transition: var(--transition);
    border: 1px solid rgba(45, 212, 191, 0.1);
    position: relative;
    overflow: hidden;
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 25px rgba(0, 0, 0, 0.3);
    border-color: rgba(45, 212, 191, 0.3);
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 5px;
    background: var(--gradient);
}

.feature-icon {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    color: var(--primary);
}

.feature-title {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--light-text);
}

/* Gallery Section */
.gallery {
    padding: 6rem 5%;
    max-width: 1400px;
    margin: 0 auto;
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.5rem;
    margin-top: 3rem;
}

.gallery-item {
    border-radius: 15px;
    overflow: hidden;
    position: relative;
    height: 250px;
    transition: var(--transition);
}

.gallery-item:hover {
    transform: scale(1.05);
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.gallery-item:hover img {
    transform: scale(1.1);
}

.gallery-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(to top, rgba(15, 23, 42, 0.9), transparent);
    padding: 1.5rem;
    transform: translateY(100%);
    transition: var(--transition);
}

.gallery-item:hover .gallery-overlay {
    transform: translateY(0);
}

/* CTA Section */
.cta {
    padding: 6rem 5%;
    text-align: center;
    max-width: 1400px;
    margin: 0 auto;
}

.cta-content {
    background: var(--gradient);
    padding: 4rem;
    border-radius: 30px;
    position: relative;
    overflow: hidden;
}

.cta-content::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 1px, transparent 1px);
    background-size: 50px 50px;
    animation: moveBackground 20s linear infinite;
}

@keyframes moveBackground {
    from { transform: translate(0, 0); }
    to { transform: translate(50px, 50px); }
}

.cta h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: white;
    position: relative;
    z-index: 1;
}

.cta p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    color: white;
    opacity: 0.9;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
    position: relative;
    z-index: 1;
}

/* Footer */
footer {
    background: var(--dark-card);
    padding: 4rem 5% 2rem;
    margin-top: 4rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
    max-width: 1400px;
    margin: 0 auto 3rem;
}

.footer-logo {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--light-text);
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 10px;
}

.footer-logo i {
    color: var(--primary);
}

.footer-description {
    margin-bottom: 1.5rem;
    opacity: 0.8;
}

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

.social-link {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(45, 212, 191, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    font-size: 1.2rem;
    transition: var(--transition);
    text-decoration: none;
}

.social-link:hover {
    background: var(--gradient);
    color: white;
    transform: translateY(-5px);
}

.footer-links h3 {
    font-size: 1.3rem;
    margin-bottom: 1.5rem;
    color: var(--light-text);
}

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

.footer-links li {
    margin-bottom: 0.8rem;
}

.footer-links a {
    color: var(--dark-text);
    text-decoration: none;
    transition: var(--transition);
    opacity: 0.8;
}

.footer-links a:hover {
    color: var(--primary);
    opacity: 1;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(45, 212, 191, 0.1);
    max-width: 1400px;
    margin: 0 auto;
    opacity: 0.7;
}

/* Login Modal */
.modalContainer {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(15, 23, 42, 0.95);
    z-index: 2000;
    align-items: center;
    justify-content: center;
    animation: fadeIn 0.3s ease;
}

.modalContainer.active {
    display: flex;
}

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

.modal-content {
    background: var(--dark-card);
    padding: 3rem;
    border-radius: 20px;
    max-width: 500px;
    width: 90%;
    position: relative;
    animation: slideUp 0.5s ease;
    border: 1px solid rgba(45, 212, 191, 0.2);
    box-shadow: var(--shadow);
}

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

.close-modal {
    position: absolute;
    top: 1.5rem;
    right: 1.5rem;
    background: none;
    border: none;
    color: var(--dark-text);
    font-size: 1.5rem;
    cursor: pointer;
    transition: var(--transition);
}

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

.modalContainer h2 {
    text-align: center;
    margin-bottom: 2rem;
    color: var(--light-text);
    font-size: 2rem;
}

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

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

.form-group input {
    width: 100%;
    padding: 1rem;
    border-radius: 10px;
    border: 1px solid rgba(45, 212, 191, 0.2);
    background: rgba(15, 23, 42, 0.5);
    color: var(--light-text);
    font-size: 1rem;
    transition: var(--transition);
}

.form-group input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(45, 212, 191, 0.1);
}

.modal-buttons {
    display: flex;
    gap: 1rem;
    margin-top: 2rem;
}

.form-options {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 1rem;
}

.remember-me {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.forgot-password {
    color: var(--primary);
    text-decoration: none;
    font-size: 0.9rem;
}

.forgot-password:hover {
    text-decoration: underline;
}

.modal-switch {
    text-align: center;
    margin-top: 1.5rem;
    color: var(--dark-text);
}

.modal-switch a {
    color: var(--primary);
    text-decoration: none;
    font-weight: 500;
}

.modal-switch a:hover {
    text-decoration: underline;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .hero {
        flex-direction: column;
        text-align: center;
        padding-top: 10rem;
    }

    .hero-content h1 {
        font-size: 2.8rem;
    }

    .hero-buttons {
        justify-content: center;
    }

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

@media (max-width: 768px) {
    nav ul {
        display: none;
    }

    .mobile-menu-btn {
        display: block;
    }

    .mobile-menu {
        position: fixed;
        top: 80px;
        left: 0;
        width: 100%;
        background: var(--dark-card);
        padding: 2rem;
        display: flex;
        flex-direction: column;
        gap: 1rem;
        transform: translateY(-100%);
        opacity: 0;
        transition: var(--transition);
        border-top: 1px solid rgba(45, 212, 191, 0.1);
    }

    .mobile-menu.active {
        transform: translateY(0);
        opacity: 1;
    }

    .mobile-menu a {
        color: var(--dark-text) ;
        text-decoration: none;
        padding: 1rem;
        border-radius: 10px;
        
        transition: var(--transition);
    }

    .mobile-menu a:hover {
        background: rgba(45, 212, 191, 0.1);
    }

    .hero-content h1 {
        font-size: 2.3rem;
    }

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

    .cta h2 {
        font-size: 2rem;
    }
}

@media (max-width: 480px) {
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }

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

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