:root {
    --mouse-x: 50vw;
    --mouse-y: 50vh;
    --spotlight-size: 400px;
    --spotlight-size-hover: 600px;
    --current-size: 400px;
    --spotlight-color-r: 255;
    --spotlight-color-g: 255;
    --spotlight-color-b: 255;
    --spotlight-opacity: 0.08;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Helvetica Neue', Arial, sans-serif;
    margin: 0;
    background-color: #000000;
    color: #ffffff;
    overflow-x: hidden;
    position: relative;
}

.spotlight-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: -1;
}

.spotlight-layer {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 1;
    transition: opacity 0.3s ease-out;
}

.spotlight-white {
    background: radial-gradient(
        circle var(--current-size) at var(--mouse-x) var(--mouse-y),
        rgba(255, 255, 255, 0.08) 0%,
        transparent 40%
    );
}

.spotlight-blue {
    background: radial-gradient(
        circle var(--current-size) at var(--mouse-x) var(--mouse-y),
        rgba(35, 166, 213, 0.15) 0%,
        transparent 45%
    );
    opacity: 0;
}

body.interactive-hover .spotlight-white {
    opacity: 0;
}

body.interactive-hover .spotlight-blue {
    opacity: 1;
}

header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: 15px 50px;
    box-sizing: border-box;
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 1000;
    background-color: rgba(10, 10, 10, 0.5);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    transition: background-color 0.3s ease;
}

.logo a {
    font-size: 1.5rem;
    font-weight: 700;
    color: #ffffff;
    text-decoration: none;
    transition: color 0.3s ease;
}

nav ul {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
}

nav ul li {
    margin-left: 30px;
}

nav ul li a {
    color: #ffffff;
    text-decoration: none;
    font-size: 1rem;
    transition: color 0.3s ease;
}

nav ul li a:hover {
    color: #23a6d5;
}

.hero {
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
    text-align: center;
    position: relative;
}

.hero h1 {
    font-size: 5rem;
    margin: 0;
    font-weight: 700;
}

.hero p {
    font-size: 1.5rem;
    margin-top: 1rem;
}

.scroll-down {
    position: absolute;
    bottom: 30px;
    font-size: 0.8rem;
    letter-spacing: 2px;
}

.content {
    padding: 100px 50px;
    max-width: 900px;
    margin: 0 auto;
    background-color: transparent;
    position: relative;
    z-index: 1;
}

.content.bg-dark {
    background-color: rgba(255, 255, 255, 0.03);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-radius: 20px;
    margin-top: 50px;
    margin-bottom: 50px;
}

.content h2 {
    font-size: 3rem;
    text-align: center;
    margin-top: 0;
    margin-bottom: 70px;
}

.about-container {
    display: flex;
    align-items: center;
    gap: 50px;
}

.about-image {
    flex: 1;
    max-width: 300px;
}

.about-image img {
    width: 100%;
    border-radius: 50%;
}

.about-text {
    flex: 2;
}

.profile-list {
    list-style-type: none;
    padding: 0;
    margin: 0;
}

.profile-list li {
    font-size: 1.2rem;
    margin-bottom: 15px;
    display: flex;
    align-items: center;
}

.profile-list strong {
    font-weight: 700;
    width: 100px;
    color: #a9a9a9;
}

.profile-list span {
    margin-right: 20px;
}

.about-text .bio {
    margin-top: 30px;
    line-height: 1.7;
    color: #cccccc;
}

.contact-message {
    text-align: center;
    font-size: 1.2rem;
    margin-bottom: 40px;
}

.social-links {
    text-align: center;
}

.social-links a {
    color: #ffffff;
    font-size: 2.5rem;
    margin: 0 20px;
    text-decoration: none;
    transition: color 0.3s ease, transform 0.3s ease;
    display: inline-block;
}

.social-links a:hover {
    color: #e73c7e;
    transform: scale(1.1);
}

footer {
    text-align: center;
    padding: 20px;
    font-size: 0.9rem;
    color: #888;
}

.page-container {
    padding-top: 120px;
    padding-bottom: 100px;
    min-height: calc(100vh - 180px);
}

.page-title {
    font-size: 3rem;
    text-align: center;
    margin-bottom: 1rem;
}

.page-description {
    font-size: 1.2rem;
    text-align: center;
    color: #ccc;
    margin-bottom: 60px;
}

.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.tool-card {
    background-color: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 15px;
    padding: 30px;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    display: flex;
    flex-direction: column;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.tool-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
}

.tool-card h3 {
    margin-top: 0;
    font-size: 1.5rem;
    color: #ffffff;
}

.tool-card p {
    flex-grow: 1;
    color: #ccc;
    line-height: 1.6;
    margin-bottom: 20px;
}

.tool-link-button {
    display: inline-block;
    padding: 12px 24px;
    background-color: #23a6d5;
    color: #ffffff;
    text-decoration: none;
    border-radius: 8px;
    font-weight: 600;
    text-align: center;
    border: 1px solid transparent;
    transition: all 0.3s ease;
    margin-top: auto; 
}

.tool-link-button:hover {
    background-color: transparent;
    border-color: #23a6d5;
    color: #23a6d5;
    transform: translateY(-2px);
}

.tool-link-button.disabled {
    background-color: #444;
    color: #888;
    cursor: not-allowed;
    pointer-events: none;
}

.tool-link-button.disabled:hover {
    transform: none;
    background-color: #444;
    border-color: transparent;
    color: #888;
}

@media (max-width: 768px) {
    .spotlight-container {
        display: none;
    }
    
    header {
        padding: 15px 20px;
    }
    
    nav ul li {
        margin-left: 15px;
    }
    
    nav ul li a {
        font-size: 0.9rem;
    }
    
    .hero h1 {
        font-size: 3rem;
    }
    
    .hero p {
        font-size: 1.2rem;
    }
    
    .content {
        padding: 80px 20px;
    }
    
    .content h2 {
        font-size: 2.5rem;
    }
    
    .about-container {
        flex-direction: column;
    }

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