:root {
    --bg-gradient-start: #0a0a0a;
    --bg-gradient-end: #1a1a1a;
    --card-bg: rgba(255, 255, 255, 0.05);
    --card-bg-hover: rgba(255, 255, 255, 0.1);
    --text-primary: #ffffff;
    --text-secondary: rgba(255, 255, 255, 0.7);
    --accent-color: #4199b7;
    --border-color: rgba(255, 255, 255, 0.1);
    --shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    --shadow-hover: 0 12px 40px rgba(65, 153, 183, 0.2);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Space Grotesk', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: linear-gradient(135deg, var(--bg-gradient-start) 0%, var(--bg-gradient-end) 100%);
    color: var(--text-primary);
    min-height: 100vh;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

.container {
    max-width: 600px;
    margin: 0 auto;
    padding: 2rem 1.5rem;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

/* Header */
.header {
    text-align: center;
    margin-bottom: 3rem;
    animation: fadeInDown 0.6s ease-out;
}

.logo-container {
    margin-bottom: 1.5rem;
}

.logo {
    height: auto;
    width: 180px;
    max-width: 100%;
    filter: brightness(0) invert(1);
    transition: transform 0.3s ease;
}

.logo:hover {
    transform: scale(1.02);
}

/* Main Content */
.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 2.5rem;
}

.intro-section {
    text-align: center;
    animation: fadeIn 0.8s ease-out 0.2s both;
}

.title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--accent-color) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -0.02em;
}

.subtitle {
    font-size: 1rem;
    color: var(--text-secondary);
    font-weight: 400;
    margin-bottom: 1.5rem;
    line-height: 1.6;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    letter-spacing: 0.01em;
}

.description {
    font-size: 1rem;
    color: var(--text-secondary);
    line-height: 1.7;
    max-width: 500px;
    margin: 0 auto;
    font-weight: 300;
}

/* Links Container */
.links-container {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    animation: fadeInUp 0.8s ease-out 0.4s both;
}

.link-card {
    display: block;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 1.25rem 1.5rem;
    text-decoration: none;
    color: var(--text-primary);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    position: relative;
    overflow: hidden;
}

.link-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(65, 153, 183, 0.1), transparent);
    transition: left 0.5s ease;
}

.link-card:hover::before {
    left: 100%;
}

.link-card:hover {
    background: var(--card-bg-hover);
    border-color: var(--accent-color);
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
}

.link-content {
    display: flex;
    align-items: center;
    gap: 1rem;
    position: relative;
    z-index: 1;
}

.link-icon {
    width: 24px;
    height: 24px;
    color: var(--accent-color);
    flex-shrink: 0;
    transition: transform 0.3s ease;
}

.link-card:hover .link-icon {
    transform: scale(1.1);
}

.link-text {
    flex: 1;
    font-size: 1.05rem;
    font-weight: 500;
    letter-spacing: 0.01em;
}

.link-arrow {
    width: 20px;
    height: 20px;
    color: var(--text-secondary);
    opacity: 0;
    transform: translateX(-10px);
    transition: all 0.3s ease;
}

.link-card:hover .link-arrow {
    opacity: 1;
    transform: translateX(0);
}

/* Footer */
.footer {
    text-align: center;
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
    animation: fadeIn 1s ease-out 0.6s both;
}

.footer-icon-container {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    margin-bottom: 1rem;
    opacity: 0.6;
    transition: opacity 0.3s ease, transform 0.3s ease;
}

.footer-icon-container:hover {
    opacity: 1;
    transform: rotate(90deg);
}

.footer-icon {
    width: 24px;
    height: 24px;
}

.footer-text {
    font-size: 0.875rem;
    color: var(--text-secondary);
    font-weight: 300;
}

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

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Responsive Design */
@media (min-width: 768px) {
    .container {
        padding: 3rem 2rem;
    }

    .title {
        font-size: 3rem;
    }

    .subtitle {
        font-size: 1.25rem;
    }

    .description {
        font-size: 1.1rem;
    }

    .link-card {
        padding: 1.5rem 2rem;
    }

    .link-text {
        font-size: 1.1rem;
    }

    .logo {
        width: 220px;
    }
}

@media (min-width: 1024px) {
    .container {
        padding: 4rem 2rem;
        max-width: 700px;
    }

    .title {
        font-size: 3.5rem;
    }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Focus states for accessibility */
.link-card:focus-visible {
    outline: 2px solid var(--accent-color);
    outline-offset: 2px;
}