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

/* HTML5 semantic element resets */
main, header, footer, section, nav, address {
    display: block;
    font-style: normal;
}

/* Skip link for accessibility */
.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: #0056A7;
    color: white;
    padding: 0.5rem 1rem;
    text-decoration: none;
    z-index: 100;
    border-radius: 0 0 4px 0;
}

.skip-link:focus {
    top: 0;
}

/* Screen reader only content */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

/* Button reset for accessibility */
button.contact-item {
    background: none;
    border: none;
    font: inherit;
    cursor: pointer;
    outline: inherit;
}

button.contact-item:focus-visible,
.social-links a:focus-visible {
    outline: 2px solid rgba(255, 255, 255, 0.8);
    outline-offset: 4px;
    border-radius: 4px;
}

@keyframes gradientShift {
    0% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
    100% {
        background-position: 0% 50%;
    }
}

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

@keyframes fadeInScale {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background:
        linear-gradient(to bottom,
            #111 0%,
            #111 50%,
            transparent 100%
        ),
        linear-gradient(135deg,
            #764ba2 0%,
            #0056A7 50%,
            #764ba2 100%
        );
    background-size: 100% 100%, 200% 200%;
    animation: gradientShift 15s ease infinite;
    color: #fff;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
}

.container {
    text-align: center;
    max-width: 600px;
}

.logo {
    max-width: 410px;
    width: 100%;
    height: auto;
    margin-bottom: 3rem;
    animation: fadeInScale 0.8s ease-out;
}

h1 {
    font-size: 2.5rem;
    font-weight: 400;
    color: #fff;
    margin-bottom: 1rem;
    line-height: 1.2;
}

.tagline {
    font-size: 1.5rem;
    color: #fff;
    font-weight: 400;
    font-style: italic;
    margin-bottom: 2rem;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
    letter-spacing: 0.5px;
    animation: fadeInUp 0.8s ease-out 0.3s both;
    transition: opacity 0.5s ease;
    min-height: 2rem;
}

.value-props {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    margin-bottom: 2.5rem;
    animation: fadeInUp 0.8s ease-out 0.4s both;
    flex-wrap: wrap;
}

.prop-item {
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.75);
    font-weight: 400;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    font-family: 'Segoe UI', system-ui, sans-serif;
}

.prop-divider {
    color: rgba(255, 255, 255, 0.3);
    font-size: 0.7rem;
}

@keyframes shine {
    0% {
        left: -100%;
    }
    100% {
        left: 100%;
    }
}

.cta-button {
    display: inline-block;
    background: linear-gradient(135deg, #0056A7 0%, #764ba2 100%);
    color: #fff;
    padding: 1.125rem 3rem;
    text-decoration: none;
    font-weight: 600;
    font-size: 1.125rem;
    transition: all 0.3s ease;
    border-radius: 50px;
    margin-bottom: 2.5rem;
    box-shadow: 0 10px 30px rgba(0, 86, 167, 0.4);
    position: relative;
    overflow: hidden;
    border: 2px solid rgba(255, 255, 255, 0.2);
    animation: fadeInUp 0.8s ease-out 0.5s both;
}

.cta-button::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.5s ease;
}

.cta-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(0, 86, 167, 0.6);
    border-color: rgba(255, 255, 255, 0.4);
}

.cta-button:hover::before {
    left: 100%;
}

.cta-button:active {
    transform: translateY(-1px);
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-bottom: 2rem;
    animation: fadeInUp 0.8s ease-out 0.7s both;
}

.contact-item {
    color: rgba(255, 255, 255, 0.9);
    font-size: 0.95rem;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    cursor: pointer;
    position: relative;
    padding: 0.5rem;
    border-radius: 4px;
}

.contact-item:hover {
    color: #fff;
    background: rgba(255, 255, 255, 0.1);
}

.contact-item i {
    font-size: 1rem;
}

.copy-feedback {
    position: absolute;
    top: -30px;
    background: rgba(0, 86, 167, 0.95);
    color: #fff;
    padding: 0.25rem 0.75rem;
    border-radius: 4px;
    font-size: 0.8rem;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

.contact-item.copied .copy-feedback {
    opacity: 1;
}

.social-links {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    animation: fadeInUp 0.8s ease-out 0.9s both;
}

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

.social-links a {
    color: rgba(255, 255, 255, 0.8);
    font-size: 1.5rem;
    transition: all 0.2s ease;
    position: relative;
    display: inline-block;
}

.social-links a i {
    transition: all 0.3s ease;
}

.social-links a::after {
    content: attr(aria-label);
    position: absolute;
    bottom: -35px;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(0, 86, 167, 0.95);
    color: #fff;
    padding: 0.35rem 0.75rem;
    border-radius: 4px;
    font-size: 0.75rem;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
}

.social-links a:hover {
    color: #fff;
}

.social-links a:hover i {
    animation: pulse 0.6s ease;
    filter: drop-shadow(0 0 8px rgba(255, 255, 255, 0.6));
}

.social-links a:hover::after {
    opacity: 1;
}

@media (max-width: 768px) {
    h1 {
        font-size: 2rem;
    }

    .logo {
        max-width: 220px;
        margin-bottom: 2rem;
    }

    .tagline {
        font-size: 1rem;
        margin-bottom: 2rem;
    }

    .cta-button {
        padding: 0.75rem 2rem;
        font-size: 0.95rem;
    }
}

@media (max-width: 480px) {
    body {
        padding: 1rem;
    }

    h1 {
        font-size: 1.75rem;
    }

    .logo {
        max-width: 180px;
    }
}

/* Respect user motion preferences */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}