ivanch.me/css/main.css

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

html {
    scrollbar-gutter: stable;
}

body {
    font-family: var(--font-family);
    background: var(--background-color);
    min-height: 100vh;
    overflow-x: hidden;
    position: relative;
    color: var(--text-color);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    -webkit-text-size-adjust: 100%;
    -ms-text-size-adjust: 100%;
}

h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    color: var(--text-color);
}

a {
    text-decoration: none;
    color: var(--primary-color);
    transition: color var(--dur-fast) var(--ease-out-soft);
}

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

ul {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
}

/* ------------------------------------------------------------------ */
/* Glass surface (refined shadow animation: calmer two-state pulse)   */
/* ------------------------------------------------------------------ */
.glass {
    background: var(--glass-background);
    backdrop-filter: blur(8px) saturate(140%);
    -webkit-backdrop-filter: blur(8px) saturate(140%);
    border-radius: var(--border-radius-large);
    border-top: 1px solid var(--glass-border);
    border-bottom: 1px solid var(--glass-border);
    box-shadow: var(--shadow-lg), var(--inset-shadow);
    animation: glass-shadow 10s ease-in-out infinite;
}

.main-container {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    max-width: 1200px;
    width: 100%;
    padding: 0 var(--space-lg);
    display: flex;
    align-items: center;
    justify-content: center;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(28px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Subtle, calm pulsing shadow for .glass */
@keyframes glass-shadow {
    0%, 100% {
        box-shadow:
            0 8px 24px -6px var(--glass-shadow),
            0 18px 48px -16px var(--dark-shadow-20),
            inset 0 1px 0 rgba(255, 255, 255, 0.08);
    }
    50% {
        box-shadow:
            0 12px 32px -6px var(--tertiary-color-20),
            0 28px 72px -24px var(--dark-shadow-18),
            inset 0 1px 0 rgba(255, 255, 255, 0.1);
    }
}

.content {
    color: var(--text-color);
    background: rgba(0, 0, 0, 0.12);
    backdrop-filter: blur(32px) saturate(180%) brightness(1.08);
    -webkit-backdrop-filter: blur(32px) saturate(180%) brightness(1.08);
    border-radius: var(--border-radius-large);
    box-shadow: var(--shadow-md), var(--inset-shadow);
    padding: var(--space-2xl) var(--space-xl);
    transition: background var(--dur-med) var(--ease-out-soft),
                box-shadow var(--dur-med) var(--ease-out-soft);
    min-width: 26rem;
    max-width: 26rem;
}

/* ------------------------------------------------------------------ */
/* Accessibility                                                       */
/* ------------------------------------------------------------------ */
:focus-visible {
    outline: 2px solid var(--primary-500);
    outline-offset: 2px;
    border-radius: var(--radius-sm);
}

@media (prefers-reduced-motion: reduce) {
    .glass {
        animation: none !important;
    }
    *, *::before, *::after {
        animation-duration: 0.001ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.001ms !important;
        scroll-behavior: auto !important;
    }
}

/* High DPI display optimizations */
@media only screen and (-webkit-min-device-pixel-ratio: 2),
       only screen and (min--moz-device-pixel-ratio: 2),
       only screen and (-o-min-device-pixel-ratio: 2/1),
       only screen and (min-device-pixel-ratio: 2),
       only screen and (min-resolution: 192dpi),
       only screen and (min-resolution: 2dppx) {
    .glass {
        backdrop-filter: blur(12px) saturate(140%);
        -webkit-backdrop-filter: blur(12px) saturate(140%);
    }
    .content {
        backdrop-filter: blur(40px) saturate(180%) brightness(1.08);
        -webkit-backdrop-filter: blur(40px) saturate(180%) brightness(1.08);
    }
}

/* ------------------------------------------------------------------ */
/* Mobile responsive layout                                            */
/* Single breakpoint switches the centered card to a stacked column.  */
/* Width constraints (set via tokens in section CSS) are overridden   */
/* in one place here rather than repeated across multiple sections.   */
/* ------------------------------------------------------------------ */
@media (max-width: 1024px) {
    .main-container {
        position: relative;
        top: auto;
        left: auto;
        transform: none;
        padding: var(--space-xl) var(--space-md);
        min-height: 100vh;
        display: flex;
        align-items: flex-start;
    }

    .content,
    .homelab-section,
    .projects-section {
        min-width: unset;
        max-width: unset;
        width: 100%;
    }

    .content {
        padding: var(--space-xl) var(--space-lg);
    }
}

@media (max-width: 480px) {
    body {
        font-size: 14px;
    }

    .main-container {
        padding: var(--space-xl) var(--space-sm);
    }

    .content {
        padding: var(--space-lg) var(--space-md);
    }
}