/* ============================================================
   Mobile-responsive overrides
   Link AFTER the inline <style> block so these rules win.
   ============================================================ */

/* Safe-area custom properties for notched iPhones / punch-hole Android */
:root {
  --sat: env(safe-area-inset-top, 0px);
  --sar: env(safe-area-inset-right, 0px);
  --sab: env(safe-area-inset-bottom, 0px);
  --sal: env(safe-area-inset-left, 0px);
}

/* Prevent accidental horizontal scroll from any overflow */
html, body { overflow-x: hidden; }

/* Long words / URLs should break instead of overflowing */
p, li, .body, .what, .authors, .booktitle,
.pub-list > li .title, .notes li .body {
  overflow-wrap: break-word;
  word-break: break-word;
}

/* ============================================================
   640 px — tablets / large phones (landscape)
   ============================================================ */
@media (max-width: 640px) {
  /* Bigger touch targets for nav + theme toggle */
  .topbar nav a {
    min-height: 40px;
    display: inline-flex;
    align-items: center;
  }
  .topbar .tbtn {
    min-height: 40px;
    min-width: 40px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }

  /* Safe-area padding on article */
  article {
    padding-left: calc(20px + var(--sal));
    padding-right: calc(20px + var(--sar));
    padding-bottom: calc(64px + var(--sab));
  }
}

/* ============================================================
   480 px — typical phones (portrait)
   ============================================================ */
@media (max-width: 480px) {
  /* Topbar: hide full name, keep "db" badge */
  .topbar-inner {
    padding: 10px calc(16px + var(--sal)) 10px calc(16px + var(--sar));
    gap: 10px;
  }
  .wordmark span:not(.mark) { display: none; }

  /* Horizontally scrollable nav when links don't fit */
  .topbar nav {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    gap: 2px;
    flex-shrink: 1;
    min-width: 0;
  }
  .topbar nav::-webkit-scrollbar { display: none; }
  .topbar nav a {
    padding: 8px 8px;
    font-size: 12px;
    white-space: nowrap;
    flex-shrink: 0;
  }
  .topbar .tbtn {
    flex-shrink: 0;
    margin-left: 0;
  }

  /* Publications: tighter layout */
  .pub-list > li .title { font-size: 15px; }
  .pub-list > li .links { gap: 4px; }
  .pub-list > li .links a { padding: 5px 8px; font-size: 10.5px; }

  /* Filters: horizontal scroll instead of wrap */
  .filters {
    flex-wrap: nowrap;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    padding-bottom: 4px;
  }
  .filters::-webkit-scrollbar { display: none; }
  .filter { flex-shrink: 0; }

  /* Contact row: bigger tap targets */
  .contact-row { gap: 8px; }
  .contact-row a { padding: 8px 12px; min-height: 44px; }

  /* Theme-block papers: friendlier line wrap */
  .theme-block .papers { padding: 8px 12px; }
  .theme-block .papers a { display: inline; line-height: 1.8; }

  /* Spark strip: stack on narrow screens */
  .spark-strip { grid-template-columns: 1fr; gap: 10px; }
  .spark-strip svg { width: 100%; max-width: 200px; }

  /* CV download button: accessible tap size */
  .cv-dl { min-height: 44px; display: inline-flex; align-items: center; }
}

/* ============================================================
   400 px — small phones (iPhone SE, Galaxy S series)
   ============================================================ */
@media (max-width: 400px) {
  /* now-block: single column so label stacks above content */
  .now-block {
    grid-template-columns: 1fr;
    gap: 4px;
    padding: 12px 14px;
  }

  /* Notes: collapse to single column */
  .notes li {
    grid-template-columns: 1fr;
    gap: 4px;
  }
  .notes li .kind  { grid-column: 1; }
  .notes li .body  { grid-column: 1; }
  .notes li .date  { font-size: 11px; }

  /* CV blocks: tighter */
  .cv-block { gap: 4px; }
  .cv-block .what { font-size: 14px; }
}

/* ============================================================
   380 px — very small phones
   ============================================================ */
@media (max-width: 380px) {
  .masthead {
    gap: 16px;
    margin-bottom: 28px;
  }
  .masthead h1 { font-size: clamp(28px, 8vw, 36px); }
  .masthead .role { font-size: 14.5px; }

  /* Portrait image smaller */
  .portrait { width: 64px; height: 64px; border-radius: 10px; }

  /* Stats: 2-col but more compact */
  .stats-row { gap: 8px; }
  .stat { padding: 10px 12px; }
  .stat .n { font-size: 20px; }
}

/* ============================================================
   Footer: safe area for phones with gesture bars
   ============================================================ */
footer {
  padding-bottom: var(--sab);
}