/* ==========================================================================
   Apple-style CV overlay
   Loaded after main.css via _includes/head/custom.html.
   Pure overrides — the theme's core SCSS is untouched.
   ========================================================================== */

/* ---- Design tokens ------------------------------------------------------- */
:root,
html[data-theme="light"] {
  --cv-bg:          #f5f5f7;
  --cv-bg-blur:     rgba(245, 245, 247, 0.72);
  --cv-card:        #ffffff;
  --cv-card-2:      #fbfbfd;
  --cv-text:        #1d1d1f;
  --cv-text-2:      #6e6e73;
  --cv-text-3:      #86868b;
  --cv-accent:      #c2592f;
  --cv-accent-2:    #d97a4f;
  --cv-accent-soft: rgba(194, 89, 47, 0.10);
  --cv-border:      rgba(0, 0, 0, 0.09);
  --cv-icon:        #5b5b60;
  --cv-shadow:      0 2px 10px rgba(0, 0, 0, 0.04), 0 8px 28px rgba(0, 0, 0, 0.06);
  --cv-shadow-sm:   0 1px 3px rgba(0, 0, 0, 0.06);
}

html[data-theme="dark"] {
  --cv-bg:          #101012;
  --cv-bg-blur:     rgba(24, 24, 27, 0.74);
  --cv-card:        #1c1c1f;
  --cv-card-2:      #26262a;
  --cv-text:        #f2f2f4;
  --cv-text-2:      #9b9ba1;
  --cv-text-3:      #7c7c83;
  --cv-accent:      #ec8a5f;
  --cv-accent-2:    #f3a888;
  --cv-accent-soft: rgba(236, 138, 95, 0.16);
  --cv-border:      rgba(255, 255, 255, 0.12);
  --cv-icon:        #d6d6da;
  --cv-shadow:      0 2px 12px rgba(0, 0, 0, 0.45), 0 10px 32px rgba(0, 0, 0, 0.6);
  --cv-shadow-sm:   0 1px 4px rgba(0, 0, 0, 0.55);
}

/* ---- Base ---------------------------------------------------------------- */
html,
body {
  background-color: var(--cv-bg);
  color: var(--cv-text);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "SF Pro Display",
    "Segoe UI", "Helvetica Neue", Helvetica, Arial, "PingFang SC",
    "Microsoft YaHei", sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  transition: background-color 0.35s ease, color 0.35s ease;
}

body {
  letter-spacing: -0.003em;
}

#main {
  background-color: var(--cv-bg);
}

/* ---- Masthead (translucent Apple top bar) -------------------------------- */
.masthead {
  background-color: var(--cv-bg-blur) !important;
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid var(--cv-border) !important;
}

.masthead__inner-wrap {
  position: relative;
  padding: 0.6em 1em !important;
}

.masthead a,
.greedy-nav a {
  color: var(--cv-text) !important;
  transition: color 0.2s ease;
}

.masthead a:hover,
.greedy-nav a:hover {
  color: var(--cv-accent) !important;
}

.greedy-nav,
.greedy-nav .visible-links {
  background: transparent !important;
}

.greedy-nav button {
  background: transparent !important;
}

.greedy-nav .navicon,
.greedy-nav .navicon:before,
.greedy-nav .navicon:after {
  background: var(--cv-text) !important;
}

/* keep the greedy-nav hamburger button clear of the theme toggle */
.greedy-nav > button {
  right: 3.4em !important;
  width: 38px;
  height: 38px !important;
  top: 50%;
  transform: translateY(-50%);
  border-radius: 50% !important;
  background: var(--cv-card) !important;
  border: 1px solid var(--cv-border) !important;
}

/* ---- Dark-mode toggle ---------------------------------------------------- */
.theme-toggle {
  position: absolute;
  top: 50%;
  right: 1em;
  transform: translateY(-50%);
  z-index: 30; /* sit above the greedy-nav (z-index:10) so clicks register */
  width: 38px;
  height: 38px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  border: 1px solid var(--cv-border);
  border-radius: 50%;
  background: var(--cv-card);
  color: var(--cv-text);
  cursor: pointer;
  box-shadow: var(--cv-shadow-sm);
  transition: transform 0.2s ease, background 0.2s ease, color 0.2s ease;
  -webkit-appearance: none;
  appearance: none;
}

.theme-toggle:hover {
  transform: translateY(-50%) scale(1.08);
  color: var(--cv-accent);
}

.theme-toggle:active {
  transform: translateY(-50%) scale(0.94);
}

.theme-toggle svg {
  width: 18px;
  height: 18px;
  fill: currentColor;
}

html[data-theme="dark"] .theme-toggle__moon { display: none; }
html[data-theme="light"] .theme-toggle__sun { display: none; }
html:not([data-theme="dark"]) .theme-toggle__sun { display: none; }

/* ---- Sidebar / author profile ------------------------------------------- */
.sidebar {
  color: var(--cv-text);
}

/* always stack the profile vertically & centred, at every screen size */
.profile_box {
  display: block !important;
  text-align: center;
}

.author__avatar {
  display: block !important;
  width: 100% !important;
  height: auto !important;
  text-align: center;
}

.author__avatar img {
  max-width: 210px !important;
  min-width: 120px;
  width: 70%;
  border: 0 !important;
  padding: 0 !important;
  border-radius: 50%;
  box-shadow: 0 0 0 6px var(--cv-card), var(--cv-shadow);
}

.author__content {
  display: block !important;
  width: 100% !important;
  padding: 0 !important;
}

.author__name,
.sidebar .author__name {
  font-weight: 700 !important;
  letter-spacing: -0.02em;
  color: var(--cv-text);
  text-align: center;
}

.author__bio {
  text-align: center;
  color: var(--cv-text-2);
  font-size: 0.95em;
  font-weight: 500;
}

/* author__urls-wrapper: the theme makes this a dropdown below 1200px —
   neutralise that so it is a normal centred block everywhere */
.author__urls-wrapper {
  display: block !important;
  width: 100% !important;
  margin: 0 !important;
  text-align: center;
}

.author__urls-wrapper > button {
  display: none !important; /* hide the "More Info & Contact" toggle button */
}

/* hide the theme's duplicate small-screen icon row — we use one consistent row */
.author__urls_sm {
  display: none !important;
}

.author__urls {
  display: flex !important;
  position: relative !important;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 10px;
  margin: 0.6em 0 0 !important;
  padding: 0 !important;
  border: 0 !important;
  background: transparent !important;
  box-shadow: none !important;
  z-index: auto !important;
}

.author__urls:before,
.author__urls:after {
  display: none !important; /* remove the dropdown arrow pseudo-elements */
}

.author__urls > li {
  flex: 0 0 auto;
  white-space: nowrap;
}

/* full-width text rows (site description, location) */
.author__urls > li:not(:has(a)) {
  flex: 1 0 100%;
  text-align: center;
  color: var(--cv-text-2);
  font-size: 0.9em;
}

/* social links → circular icon buttons */
.author__urls > li > a {
  display: flex !important;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  margin: 0 !important;
  padding: 0 !important;
  border-radius: 50%;
  background: var(--cv-card);
  border: 1px solid var(--cv-border);
  color: var(--cv-text-2) !important;
  font-size: 0 !important;
  box-shadow: var(--cv-shadow-sm);
  text-decoration: none !important;
  transition: transform 0.2s ease, background 0.2s ease, color 0.2s ease;
}

.author__urls > li > a:hover {
  transform: translateY(-3px);
  background: var(--cv-accent);
  border-color: var(--cv-accent);
  color: #fff !important;
  text-decoration: none !important;
}

/* override the theme's per-brand icon colours (e.g. GitHub #171516,
   invisible in dark mode) so every icon uses one consistent colour */
.author__urls > li > a i {
  font-size: 18px !important;
  line-height: 1;
  color: var(--cv-icon) !important;
}

.author__urls > li > a:hover i {
  color: #fff !important;
}

/* ---- Page / article container ------------------------------------------- */
.page__content {
  color: var(--cv-text);
  font-size: 1.02em;
  line-height: 1.7;
}

.page__content p,
.page__content li {
  color: var(--cv-text);
}

.page__content a {
  color: var(--cv-accent);
  text-decoration: none;
  transition: color 0.2s ease;
}

.page__content a:hover {
  color: var(--cv-accent-2);
  text-decoration: underline;
}

.page__content strong {
  color: var(--cv-text);
}

/* ---- Section headers (coral with underline accent) ---------------------- */
.page__content h1 {
  color: var(--cv-accent) !important;
  border-bottom: 0 !important;
  font-weight: 700;
  font-size: 1.55rem;
  letter-spacing: -0.02em;
  margin-top: 1.9em;
  padding-bottom: 0.4em;
  position: relative;
}

.page__content h1:after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 40px;
  height: 3px;
  border-radius: 2px;
  background: var(--cv-accent);
}

.page__content h2,
.page__content h3 {
  color: var(--cv-text);
  font-weight: 650;
}

/* ---- "About Me" intro block --------------------------------------------- */
.page__content h1#-about-me + p,
.page__content h1[id$="about-me"] + p {
  margin-top: 0.4em;
}

/* ---- News list ----------------------------------------------------------- */
.page__content h1[id$="news"] + ul {
  list-style: none;
  padding-left: 0;
}

.page__content h1[id$="news"] + ul > li {
  background: var(--cv-card);
  border: 1px solid var(--cv-border);
  border-radius: 14px;
  padding: 0.85em 1.1em;
  margin-bottom: 0.7em;
  box-shadow: var(--cv-shadow-sm);
}

/* ---- Generic award / patent lists --------------------------------------- */
.page__content h1[id$="awards"] + ul,
.page__content h1[id$="patents"] + ul,
.page__content h1[id$="activities"] + ul {
  list-style: none;
  padding-left: 0;
}

.page__content h1[id$="awards"] + ul > li,
.page__content h1[id$="patents"] + ul > li,
.page__content h1[id$="activities"] + ul > li {
  position: relative;
  background: var(--cv-card);
  border: 1px solid var(--cv-border);
  border-left: 3px solid var(--cv-accent);
  border-radius: 12px;
  padding: 0.8em 1em 0.8em 1.1em;
  margin-bottom: 0.6em;
  box-shadow: var(--cv-shadow-sm);
}

/* ---- Publications (paper-box) ------------------------------------------- */
.paper-box {
  background: var(--cv-card);
  border: 1px solid var(--cv-border) !important;
  border-radius: 16px;
  padding: 1.5em !important;
  margin-bottom: 1.2em;
  box-shadow: var(--cv-shadow);
}

.paper-box .paper-box-image img {
  border-radius: 12px;
  box-shadow: var(--cv-shadow-sm) !important;
}

.badge {
  background-color: var(--cv-accent) !important;
  border-radius: 6px;
  font-weight: 600;
}

/* plain publication list items */
.page__content h1[id$="publications"] + ul {
  list-style: none;
  padding-left: 0;
}

.page__content h1[id$="publications"] + ul > li {
  background: var(--cv-card);
  border: 1px solid var(--cv-border);
  border-radius: 14px;
  padding: 1em 1.2em;
  margin-bottom: 0.7em;
  box-shadow: var(--cv-shadow-sm);
}

/* ==========================================================================
   CV TIMELINE  (Education & Research Experience)
   ========================================================================== */
.cv-timeline {
  position: relative;
  margin: 1.4em 0 0.5em;
  padding-left: 26px;
}

.cv-timeline:before {
  content: "";
  position: absolute;
  left: 5px;
  top: 14px;
  bottom: 14px;
  width: 2px;
  background: var(--cv-border);
}

.cv-item {
  position: relative;
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 14px 0;
}

.cv-item:before {
  content: "";
  position: absolute;
  left: -26px;
  top: 28px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--cv-accent);
  box-shadow: 0 0 0 4px var(--cv-bg);
}

.cv-logo {
  flex: 0 0 56px;
  width: 56px;
  height: 56px;
  border-radius: 14px;
  background: #ffffff;
  border: 1px solid var(--cv-border);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  box-shadow: var(--cv-shadow-sm);
}

.cv-logo img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: 7px;
}

/* graceful fallback when a logo file is missing */
.cv-logo--empty {
  display: none;
}

.cv-content {
  flex: 1 1 auto;
  min-width: 0;
  padding-top: 1px;
}

.cv-title {
  font-weight: 650;
  font-size: 1.06rem;
  color: var(--cv-text);
  letter-spacing: -0.01em;
}

.cv-place {
  font-size: 0.96rem;
  color: var(--cv-text-2);
  margin-top: 1px;
}

.cv-sub {
  font-size: 0.94rem;
  color: var(--cv-text-2);
  margin-top: 2px;
}

.cv-host {
  font-size: 0.9rem;
  color: var(--cv-text-3);
  margin-top: 2px;
}

.cv-host strong {
  color: var(--cv-text-2);
}

.cv-date {
  display: inline-block;
  margin-top: 6px;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--cv-accent);
  background: var(--cv-accent-soft);
  padding: 2px 10px;
  border-radius: 999px;
}

/* ---- Misc ---------------------------------------------------------------- */
hr {
  border-color: var(--cv-border);
}

img[src*="shields.io"] {
  vertical-align: middle;
}

::selection {
  background: var(--cv-accent-soft);
}

/* smoother anchored scrolling */
html {
  scroll-behavior: smooth;
}

/* ==========================================================================
   RESPONSIVE
   ========================================================================== */

/* Tablet / stacked layout — the susy grid drops the sidebar on top below
   1200px. Centre the profile and keep the avatar a sensible size. */
@media (max-width: 1199px) {
  .sidebar.sticky {
    position: static !important;
    margin-bottom: 1.5em;
  }
  .author__avatar img {
    width: auto;
    max-width: 180px !important;
  }
  .author__urls {
    max-width: 420px;
    margin-left: auto !important;
    margin-right: auto !important;
  }
  .page__content {
    margin-top: 0.5em;
  }
}

/* Small tablet / large phone */
@media (max-width: 768px) {
  body { font-size: 15px; }
  .masthead__inner-wrap { padding: 0.5em 0.8em !important; }
  .page__content { font-size: 1em; }
  .page__content h1 {
    font-size: 1.32rem;
    margin-top: 1.5em;
  }
  .author__avatar img { max-width: 150px !important; }
  .paper-box { padding: 1.1em !important; }
  .cv-timeline { padding-left: 22px; }
  .cv-logo { flex: 0 0 46px; width: 46px; height: 46px; }
  .cv-item { gap: 12px; }
  .cv-item:before { top: 24px; left: -22px; }
  .cv-title { font-size: 1rem; }
}

/* Phones */
@media (max-width: 480px) {
  .author__avatar img { max-width: 128px !important; }
  .author__urls { gap: 8px; }
  .author__urls > li > a { width: 38px; height: 38px; }
  .author__urls > li > a i { font-size: 16px !important; }
  .page__content h1 { font-size: 1.22rem; }
  .cv-place,
  .cv-sub,
  .cv-host { font-size: 0.86rem; }
  .theme-toggle { width: 34px; height: 34px; right: 0.7em; }
  .greedy-nav > button { right: 3em !important; width: 34px; height: 34px !important; }
}

/* Respect users who prefer reduced motion */
@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; }
  html { scroll-behavior: auto; }
}