/* ==========================================================================
   BASE.CSS - Layout & Structure Only
   Load this file first, then load a theme file to set colors.
   ========================================================================== */

/* Box sizing & resets */
*, *::before, *::after { box-sizing: border-box; }
html, body { min-height: 100%; }

/* Put the page background on the root element so it spans the full document. */
html {
  background: var(--body-bg);
  background-repeat: no-repeat;
  background-size: 100% 100%;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  color: var(--text);
  background: transparent;
  overflow-x: hidden;
  line-height: 1.6;
}

a { color: var(--link-color, inherit); text-decoration: none; }
a:hover { color: var(--link-hover, var(--text)); }
img { max-width: 100%; display: block; }
::selection { background: var(--selection-bg); }

/* Utility classes */
.container { width: min(var(--maxw), calc(100% - 40px)); margin: 0 auto; }

.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0;
}

.pill {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 8px 12px; border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--pill-bg);
  backdrop-filter: var(--blur-effect, none);
}

.mono { font-family: var(--font-mono); color: var(--muted); }

/* Glow effect (theme can disable by setting --glow-opacity: 0) */
.glow { position: relative; }
.glow::before {
  content: ""; position: absolute; inset: -1px; border-radius: inherit;
  background: var(--glow-gradient);
  filter: blur(10px); opacity: var(--glow-opacity, 0); z-index: -2;
}
.glow::after {
  content: ""; position: absolute; inset: 0; border-radius: inherit;
  border: 1px solid var(--glow-border); z-index: -1;
}

/* Header */
header {
  position: sticky; top: 0; z-index: 50;
  border-bottom: 1px solid var(--header-border);
  background: var(--header-bg);
  backdrop-filter: var(--blur-effect, none);
}

.nav {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 0; gap: 14px;
}

.brand { display: flex; align-items: center; gap: 12px; min-width: 220px; }
.brand strong { font-size: 14px; letter-spacing: 0.4px; }
.brand span { display: block; font-size: 12px; color: var(--muted); }

.logo {
  width: 36px; height: 36px; border-radius: 12px;
  background: var(--logo-bg);
  box-shadow: var(--logo-shadow);
}

nav ul {
  list-style: none; padding: 0; margin: 0;
  display: flex; gap: 10px; align-items: center; flex-wrap: wrap; justify-content: flex-end;
}

nav a {
  display: inline-flex; padding: 10px 12px; border-radius: 12px;
  border: 1px solid transparent; color: var(--muted);
  transition: transform 140ms ease, border-color 140ms ease, background 140ms ease;
}

nav a:hover {
  transform: translateY(-1px);
  border-color: var(--nav-hover-border);
  background: var(--nav-hover-bg);
  color: var(--text);
}

.nav-cta {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 10px 14px; border-radius: 14px;
  border: 1px solid var(--cta-border);
  background: var(--cta-bg);
  box-shadow: var(--cta-shadow);
  color: var(--text);
}
.nav-cta:hover { border-color: var(--cta-hover-border); }

/* Hero section */
.hero { padding: 48px 0 26px; }
.hero-grid { display: grid; grid-template-columns: 1.4fr 0.6fr; gap: 22px; align-items: stretch; }

/* Card component */
.card {
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  background: var(--card-bg);
  box-shadow: var(--shadow);
  backdrop-filter: var(--blur-effect, none);
}

.hero-main { padding: 26px; }

.kicker {
  display: inline-flex; gap: 10px; align-items: center;
  color: var(--muted); font-size: 13px; letter-spacing: 0.2px; margin-bottom: 12px;
}

.kicker-dot {
  width: 10px; height: 10px; border-radius: 999px;
  background: var(--accent);
  box-shadow: var(--kicker-dot-shadow);
}

h1 {
  margin: 0 0 10px;
  font-size: clamp(30px, 4vw, 42px);
  line-height: 1.08;
  letter-spacing: -0.6px;
}

.subtitle {
  margin: 0 0 18px;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.55;
  max-width: 70ch;
}

.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 18px; }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  padding: 12px 14px; border-radius: 14px;
  border: 1px solid var(--border);
  background: var(--btn-bg);
  color: var(--text);
  transition: transform 140ms ease, border-color 140ms ease, background 140ms ease;
}

.btn:hover {
  transform: translateY(-1px);
  border-color: var(--btn-hover-border);
  background: var(--btn-hover-bg);
}

.btn-primary {
  border-color: var(--btn-primary-border);
  background: var(--btn-primary-bg);
  color: var(--btn-primary-color, var(--text));
}
.btn-primary:hover { border-color: var(--btn-primary-hover-border); }

/* Hero side & profile */
.hero-side { padding: 18px; display: flex; flex-direction: column; gap: 14px; }
.profile { display: grid; gap: 12px; }

.avatar {
  border-radius: 18px;
  aspect-ratio: 1 / 1;
  overflow: hidden;
  border: 1px solid var(--avatar-border);
  background: var(--avatar-bg);
}

.avatar img { width: 100%; height: 100%; object-fit: cover; }

.statgrid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }

.stat {
  padding: 14px; border-radius: var(--radius);
  border: 1px solid var(--stat-border);
  background: var(--stat-bg);
}

.stat strong { display: block; font-size: 14px; margin-bottom: 4px; }
.stat span {
  font-size: 12px;
  color: var(--muted);
  word-break: break-word;
  overflow-wrap: anywhere;
}

/* Main content */
main { padding: 22px 0 64px; }
section { margin-top: 18px; }
.section-card { padding: 22px; }

.section-head {
  display: flex; align-items: baseline; justify-content: space-between;
  gap: 12px; margin-bottom: 14px;
}

h2 { margin: 0; font-size: 18px; letter-spacing: 0.2px; }
.section-head small { color: var(--muted); }

/* Grid system */
.grid { display: grid; grid-template-columns: repeat(12, 1fr); gap: 14px; }
.col-6 { grid-column: span 6; }
.col-12 { grid-column: span 12; }

/* Item cards */
.item {
  padding: 16px;
  border-radius: var(--radius);
  border: 1px solid var(--item-border);
  background: var(--item-bg);
}

.item h3 { margin: 0 0 6px; font-size: 14px; letter-spacing: 0.2px; }
.item p { margin: 0; color: var(--muted); font-size: 13px; line-height: 1.5; }

/* Tags */
.meta { margin-top: 10px; display: flex; flex-wrap: wrap; gap: 8px; }

.tag {
  font-size: 12px;
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid var(--tag-border);
  background: var(--tag-bg);
  color: var(--muted);
}

.tag.neon {
  border-color: var(--tag-neon-border);
  box-shadow: var(--tag-neon-shadow);
}

/* Timeline */
.timeline { display: grid; gap: 12px; }

.tl {
  padding: 16px; border-radius: var(--radius);
  border: 1px solid var(--tl-border);
  background: var(--tl-bg);
}

.tl-top { display: flex; justify-content: space-between; gap: 10px; align-items: baseline; flex-wrap: wrap; }
.tl-top strong { font-size: 14px; }
.tl-top span { color: var(--muted); font-size: 12px; }
.tl p { margin: 8px 0 0; color: var(--muted); font-size: 13px; line-height: 1.55; }

/* Footer */
footer {
  border-top: 1px solid var(--footer-border);
  padding: 26px 0 40px;
  color: var(--muted);
}

.foot { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; justify-content: space-between; }

/* Profile card (photo + details) */
.profile-card { padding: 18px; }

.profile-row {
  display: grid;
  grid-template-columns: 550px 1fr;
  gap: 18px;
  align-items: stretch;
}

.profile-photo {
  border-radius: 18px;
  overflow: hidden;
  border: 1px solid var(--profile-photo-border);
  background: var(--profile-photo-bg);
  aspect-ratio: 1 / 1;
}

.profile-photo img { width: 100%; height: 100%; object-fit: cover; }

.profile-details {
  display: flex;
  flex-direction: column;
  gap: 10px;
  min-width: 0;
}

.profile-line {
  padding: 12px 14px;
  border-radius: var(--radius);
  border: 1px solid var(--profile-line-border);
  background: var(--profile-line-bg);
}

.profile-label {
  font-size: 12px;
  color: var(--muted);
  margin-bottom: 4px;
}

.profile-value {
  font-size: 13px;
  color: var(--text);
  line-height: 1.4;
  overflow-wrap: anywhere;
  word-break: break-word;
}

.profile-value a {
  border-bottom: 1px dashed var(--link-underline);
}

/* Education list */
.education-list {
  margin: 0 0 10px;
  padding-left: 18px;
}

.education-list li {
  margin: 6px 0;
  color: var(--muted);
  line-height: 1.5;
}

/* Glow hover effect */
.glow-hover { position: relative; }

.glow-hover::before {
  content: "";
  position: absolute;
  inset: -2px;
  border-radius: inherit;
  background: var(--glow-gradient);
  filter: blur(14px);
  opacity: 0;
  transition: opacity 180ms ease;
  z-index: -1;
}

.glow-hover:hover::before {
  opacity: var(--glow-hover-opacity, 0);
}

/* Theme selector */
.theme-select {
  padding: 8px 12px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--btn-bg, transparent);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 12px;
  cursor: pointer;
  transition: border-color 140ms ease;
}

.theme-select:hover {
  border-color: var(--accent);
}

.theme-select:focus {
  outline: none;
  border-color: var(--accent);
}

.theme-select option {
  background: var(--base, #1e1e2e);
  color: var(--text);
}

/* Responsive */
@media (max-width: 900px) {
  .hero-grid { grid-template-columns: 1fr; }
  .brand { min-width: unset; }
}

@media (max-width: 760px) {
  .profile-row { grid-template-columns: 1fr; }
  .profile-photo { max-width: 320px; }
  .col-6 { grid-column: span 12; }
  nav ul { justify-content: flex-start; }
}