:root {
    --apple-bg: #f5f5f7;        /* System Gray 6 */
    --apple-card: #ffffff;
    --apple-text: #1d1d1f;      /* Near Black */
    --apple-dim: #86868b;       /* Secondary Text */
    --apple-blue: #0071e3;      /* Link Blue */
    --radius: 18px;             /* The "Squircle" radius */
}

body {
    background-color: var(--apple-bg);
    color: var(--apple-text);
    font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Helvetica Neue", sans-serif;
    margin: 0;
    -webkit-font-smoothing: antialiased; /* Crisper text rendering */
}

/* --- Refined Minimal Header --- */
header {
    background: rgba(245, 245, 247, 0.7);
    backdrop-filter: saturate(180%) blur(20px);
    border-bottom: 0.5px solid rgba(0,0,0,0.1);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
}

nav {
    max-width: 980px; /* Apple's standard content width */
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    padding: 0 22px;
}

.logo { font-weight: 600; letter-spacing: -0.5px; font-size: 1.1rem; }

/* --- Subtle Hero --- */
.hero {
    max-width: 600px;
    margin: 80px auto 40px;
    text-align: center;
    padding: 0 22px;
}

.hero h1 {
    font-size: 40px;
    font-weight: 700;
    letter-spacing: -1.2px;
    margin-bottom: 8px;
}

.hero p {
    font-size: 19px;
    color: var(--apple-dim);
    font-weight: 400;
}

/* --- Clean, Shadow-based Cards --- */
.feed {
    max-width: 680px;
    margin: 0 auto;
    padding: 20px;
}

.byte-card {
    background: var(--apple-card);
    border-radius: var(--radius);
    padding: 24px;
    margin-bottom: 24px;
    box-shadow: 0 4px 24px rgba(0,0,0,0.04); /* Very soft shadow */
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.byte-card:hover {
    transform: scale(1.01);
}

.tag {
    color: var(--apple-blue);
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    display: block;
    margin-bottom: 8px;
}

.date {
    font-size: 12px;
    color: var(--apple-dim);
    margin-bottom: 12px;
    display: block;
}

h2 {
    font-size: 24px;
    font-weight: 600;
    margin: 0 0 12px 0;
    letter-spacing: -0.4px;
}

p {
    font-size: 16px;
    line-height: 1.5;
    color: #424245;
    margin-bottom: 20px;
}

/* --- Monotone Code Blocks --- */
.code-container {
    background: #fbfbfd;
    border: 1px solid #d2d2d7;
    border-radius: 12px;
    padding: 16px;
    position: relative;
}

code {
    font-family: "SF Mono", "Fira Code", monospace;
    font-size: 13px;
    color: #1d1d1f;
}

.copy-btn {
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    background: #e8e8ed;
    border: none;
    color: var(--apple-text);
    padding: 6px 12px;
    border-radius: 8px;
    font-size: 11px;
    font-weight: 600;
    cursor: pointer;
}

.copy-btn:hover { background: #d2d2d7; }

/* --- Mobile Perfection --- */
@media (max-width: 734px) {
    .hero h1 { font-size: 32px; }
    .hero p { font-size: 17px; }
    .byte-card { padding: 20px; }
}