/* Modern Dark Theme Reset */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

:root {
    --primary-color: #2563eb;
    --primary-hover: #3b82f6;
    --text-primary: #fff;
    --text-secondary: #94a3b8;
    --bg-gradient: linear-gradient(135deg, #0a0a0a, #1a1a1a);
    --button-gradient: linear-gradient(135deg, #3b82f6, #2563eb);
    --button-hover-gradient: linear-gradient(135deg, #2563eb, #1d4ed8);
    --transition-default: all 0.3s ease;
    --transition-smooth: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    --container-padding: 1rem;
    --profile-image-size: 110px;
    /* Safe area insets */
    --safe-area-top: env(safe-area-inset-top, 0px);
    --safe-area-bottom: env(safe-area-inset-bottom, 0px);
    --safe-area-left: env(safe-area-inset-left, 0px);
    --safe-area-right: env(safe-area-inset-right, 0px);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    border: 0;
    -webkit-tap-highlight-color: transparent;
}

html, body {
    height: 100%;
    width: 100%;
    font-family: 'Inter', sans-serif;
    background: var(--bg-gradient);
    color: var(--text-primary);
    display: flex;
    justify-content: center;
    align-items: flex-start;
    overflow-x: hidden;
    overflow-y: auto;
    transition: var(--transition-default);
    padding: var(--safe-area-top) var(--safe-area-right) var(--safe-area-bottom) var(--safe-area-left);
    -webkit-overflow-scrolling: touch;
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
    -webkit-touch-callout: none;
    -webkit-user-select: none;
    user-select: none;
}

/* Main Container */
.container {
    text-align: center;
    padding: var(--container-padding);
    width: 100%;
    max-width: 100%;
    min-height: calc(100vh - var(--safe-area-top) - var(--safe-area-bottom));
    background: transparent;
    opacity: 0;
    transition: opacity 1s ease-out, transform 0.3s ease-out;
    transform: translateY(20px);
    will-change: opacity, transform;
}

.container.loaded {
    opacity: 1;
    transform: translateY(0);
}

/* Profile Section */
.profile {
    margin: 1rem 0;
    padding: 0 1rem;
}

.profile-box {
    width: var(--profile-image-size);
    height: var(--profile-image-size);
    border-radius: 50%;
    padding: 3px;
    margin: 0 auto;
    position: relative;
    background: transparent;
    border: 3px solid var(--primary-color);
    box-shadow: 0 0 15px rgba(37, 99, 235, 0.2);
}

.profile-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 50%;
    background: var(--bg-gradient);
}

.profile-name h2 {
    color: var(--text-primary);
    margin-top: 0.75rem;
    font-weight: 700;
    font-size: 1.5rem;
    letter-spacing: -0.5px;
}

.profile-name p {
    color: var(--text-secondary);
    margin-top: 0.5rem;
    font-size: 0.9rem;
    line-height: 1.5;
    padding: 0 1rem;
}

.social-icons {
    display: flex;
    justify-content: center;
    gap: 1.25rem;
    margin-top: 1rem;
    flex-wrap: wrap;
}

.icon-button {
    color: var(--text-secondary);
    font-size: 1.25rem;
    padding: 0.5rem;
    transition: var(--transition-default);
    text-decoration: none;
}

.icon-button:active {
    color: var(--primary-hover);
    transform: scale(0.95);
}

/* Links Section */
.links {
    margin: 1.5rem auto;
    padding: 0 1rem;
    max-width: 100%;
    display: grid;
    gap: 0.75rem;
}

.sub-links {
    display: grid;
    gap: 0.75rem;
    margin-top: 0.75rem;
    width: 100%;
}

.link-button,
details summary.link-button {
    display: inline-block;
    padding: 0.875rem 1.25rem;
    background: var(--button-gradient);
    color: var(--text-primary);
    text-decoration: none;
    border-radius: 10px;
    font-size: 0.95rem;
    font-weight: 500;
    width: 100%;
    transition: var(--transition-smooth);
    cursor: pointer;
    text-align: center;
    box-shadow: 0 2px 4px rgba(59, 130, 246, 0.1);
}

.link-button:active,
.link-button:focus,
details summary.link-button:active,
details summary.link-button:focus {
    background: var(--button-hover-gradient);
    transform: scale(0.98);
}

details[open] summary.link-button {
    background: var(--button-hover-gradient);
}

details {
    overflow: visible;
    position: relative;
}

details .sub-links {
    transform-origin: top;
    position: relative;
    z-index: 10;
    opacity: 0;
    transform: translateY(-15px) scaleY(0.95);
    transition: transform 0.6s cubic-bezier(0.34, 1.56, 0.64, 1),
                opacity 0.4s cubic-bezier(0.4, 0, 0.2, 1),
                margin-top 0.6s cubic-bezier(0.34, 1.56, 0.64, 1);
    margin-top: 0;
    will-change: transform, opacity, margin-top;
}

details[open] .sub-links {
    opacity: 1;
    transform: translateY(0) scaleY(1);
    margin-top: 0.75rem;
}

details:not([open]) .sub-links {
    opacity: 0;
    transform: translateY(-15px) scaleY(0.95);
    margin-top: 0;
    transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1),
                opacity 0.4s cubic-bezier(0.4, 0, 0.2, 1),
                margin-top 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    will-change: transform, opacity, margin-top;
}

/* Footer */
footer {
    margin-top: 1.5rem;
    padding: 1rem;
}

footer p, footer a {
    font-size: 0.75rem;
    text-decoration: none;
    transition: var(--transition-default);
}

footer p {
    color: var(--text-secondary);
    display: inline;
}

footer a {
    color: var(--primary-color);
}

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

/* Tablet and Desktop Styles */
@media (min-width: 640px) {
    :root {
        --container-padding: 2rem;
        --profile-image-size: 130px;
    }

    .container {
        max-width: 640px;
        border-radius: 20px;
    }

    .profile-name h2 {
        font-size: 1.75rem;
    }

    .profile-name p {
        font-size: 1rem;
    }

    .icon-button {
        font-size: 1.5rem;
    }

    .icon-button:hover {
        color: var(--primary-hover);
        transform: translateY(-2px);
    }

    .link-button:hover,
    details summary.link-button:hover {
        background: var(--button-hover-gradient);
        box-shadow: 0 0 15px rgba(59, 130, 246, 0.3);
        transform: translateY(-1px);
    }

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

@media (min-width: 840px) {
    :root {
        --container-padding: 2.5rem;
    }

    .container {
        max-width: 700px;
    }

    .links {
        max-width: 450px;
    }
}