/* Plain Text Resume - Theme Variables */
:root {
  --bg-primary: #ffffff;
  --bg-secondary: #f5f5f5;
  --text-primary: #1a1a1a;
  --text-secondary: #444444;
  --text-muted: #666666;
  --text-faded: #888888;
  --border-color: #e0e0e0;
  --accent-color: #2563eb;
  --accent-glow: rgba(37, 99, 235, 0.15);
  --highlight-bg: linear-gradient(
    120deg,
    rgba(37, 99, 235, 0.1) 0%,
    rgba(37, 99, 235, 0.05) 100%
  );
  --menu-bg: rgba(255, 255, 255, 0.9);
  --menu-border: rgba(0, 0, 0, 0.1);
  --menu-shadow: 0 4px 24px rgba(0, 0, 0, 0.12);
  --card-bg: #ffffff;
  --card-border: #e0e0e0;
  --card-hover-bg: #f8f9fa;
  --card-hover-border: #d0d0d0;
}

[data-theme="dark"] {
  --bg-primary: #0a0a0a;
  --bg-secondary: #141414;
  --text-primary: #e5e5e5;
  --text-secondary: #a3a3a3;
  --text-muted: #737373;
  --text-faded: #525252;
  --border-color: #262626;
  --accent-color: #60a5fa;
  --accent-glow: rgba(96, 165, 250, 0.2);
  --highlight-bg: linear-gradient(
    120deg,
    rgba(96, 165, 250, 0.15) 0%,
    rgba(96, 165, 250, 0.05) 100%
  );
  --menu-bg: rgba(20, 20, 20, 0.95);
  --menu-border: rgba(255, 255, 255, 0.1);
  --menu-shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
  --card-bg: rgba(255, 255, 255, 0.03);
  --card-border: rgba(255, 255, 255, 0.05);
  --card-hover-bg: rgba(255, 255, 255, 0.06);
  --card-hover-border: rgba(255, 255, 255, 0.1);
}

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

body {
  font-family: "SF Mono", "Fira Code", "Consolas", monospace;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  padding: 40px 30px;
  padding-bottom: 100px;
  max-width: 720px;
  margin: 0 auto;
  font-size: 14px;
  transition:
    background-color 0.3s ease,
    color 0.3s ease;
}

header {
  margin-bottom: 40px;
}

nav {
  font-size: 13px;
}

nav a {
  color: var(--text-primary);
  text-decoration: underline;
  margin-right: 20px;
  transition: color 0.2s ease;
}

nav a:hover {
  color: var(--accent-color);
  text-decoration: underline;
}

h1 {
  font-size: 24px;
  font-weight: 400;
  margin-bottom: 8px;
  letter-spacing: -0.5px;
  color: var(--text-primary);
}

h2 {
  font-size: 14px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-top: 40px;
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border-color);
  color: var(--text-primary);
  transition: border-color 0.3s ease;
}

h3 {
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 4px;
  color: var(--text-primary);
}

p {
  margin-bottom: 12px;
  color: var(--text-secondary);
}

a {
  color: var(--text-primary);
  text-decoration: underline;
  text-underline-offset: 2px;
  transition: color 0.2s ease;
}

a:hover {
  color: var(--accent-color);
}

.tagline {
  color: var(--text-muted);
  font-size: 13px;
  margin-bottom: 20px;
}

.links {
  font-size: 13px;
}

.links a {
  margin-right: 16px;
}

.about-text {
  color: var(--text-secondary);
  line-height: 1.7;
}

.section {
  margin-bottom: 40px;
}

.skill-category {
  margin-bottom: 16px;
}

.skill-label {
  color: var(--text-faded);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  display: block;
  margin-bottom: 4px;
}

.skill-list {
  color: var(--text-primary);
}

/* Experience & Projects */
.item {
  margin-bottom: 24px;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  padding: 20px;
  border-radius: 12px;
  transition: all 0.3s ease;
}

.item:hover {
  background: var(--card-hover-bg);
  border-color: var(--card-hover-border);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
}

.item-header {
  margin-bottom: 4px;
}

.item-title {
  font-weight: 600;
  color: var(--text-primary);
}

.item-meta {
  color: var(--text-faded);
  font-size: 12px;
  margin-bottom: 6px;
}

.item-description {
  color: var(--text-secondary);
  font-size: 13px;
}

.item-tech {
  color: var(--text-faded);
  font-size: 12px;
  margin-top: 4px;
}

footer {
  margin-top: 60px;
  padding-top: 20px;
  border-top: 1px solid var(--border-color);
  color: var(--text-faded);
  font-size: 12px;
  transition: border-color 0.3s ease;
}

hr {
  border: none;
  border-top: 1px solid var(--border-color);
  margin: 30px 0;
}

/* Collapsible Experience Details */
.collapsible-toggle {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: none;
  border: 1px solid var(--border-color);
  padding: 4px 10px;
  font-family: inherit;
  font-size: 12px;
  color: var(--text-muted);
  cursor: pointer;
  margin-top: 8px;
  border-radius: 4px;
  transition: all 0.2s ease;
}

.collapsible-toggle:hover {
  background-color: var(--bg-secondary);
  border-color: var(--accent-color);
  color: var(--text-primary);
}

.collapsible-toggle .toggle-icon {
  display: inline-block;
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  font-size: 10px;
}

.collapsible-toggle.active .toggle-icon {
  transform: rotate(180deg);
}

.collapsible-content {
  display: grid;
  grid-template-rows: 0fr;
  transition:
    grid-template-rows 0.4s cubic-bezier(0.4, 0, 0.2, 1),
    opacity 0.3s ease,
    margin 0.3s ease;
  opacity: 0;
  margin-top: 0;
}

.collapsible-content.active {
  grid-template-rows: 1fr;
  opacity: 1;
  margin-top: 12px;
}

.collapsible-inner {
  overflow: hidden;
}

.detail-list {
  list-style: none;
  padding: 0;
  margin: 0;
  padding-left: 12px;
  border-left: 2px solid var(--border-color);
}

.detail-list li {
  color: var(--text-secondary);
  font-size: 12px;
  line-height: 1.6;
  padding: 6px 0;
  padding-left: 12px;
  position: relative;
  transition: all 0.2s ease;
}

.detail-list li::before {
  content: "→";
  position: absolute;
  left: -1px;
  color: var(--text-faded);
  font-size: 11px;
}

.detail-list li:hover {
  color: var(--text-primary);
}

/* Projects Grid */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
  margin-top: 20px;
}

.project-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 12px;
  overflow: hidden;
  transition: all 0.3s ease;
  display: flex;
  flex-direction: column;
  height: 100%;
}

.project-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
  border-color: var(--card-hover-border);
  background: var(--card-hover-bg);
}

.project-image {
  width: 100%;
  height: 160px;
  object-fit: cover;
  border-bottom: 1px solid var(--card-border);
  background-color: var(--bg-secondary);
}

.project-content {
  padding: 20px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.project-title {
  font-weight: 600;
  font-size: 16px;
  color: var(--text-primary);
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 6px;
  text-decoration: none;
}

.project-title:hover {
  color: var(--accent-color);
}

.external-link-icon {
  opacity: 0.5;
  transition:
    opacity 0.2s ease,
    transform 0.2s ease;
}

.project-title:hover .external-link-icon {
  opacity: 1;
  transform: translate(2px, -2px);
}

.project-desc {
  color: var(--text-secondary);
  font-size: 13px;
  line-height: 1.6;
  margin-bottom: 16px;
  flex: 1;
}

.project-tech {
  color: var(--text-faded);
  font-size: 11px;
  margin-top: auto;
  font-family: "SF Mono", "Fira Code", monospace;
}

.detail-list li:hover::before {
  color: var(--accent-color);
}

/* Highlight important elements */
.highlight {
  background: var(--highlight-bg);
  padding: 2px 6px;
  border-radius: 4px;
  color: var(--accent-color);
  font-weight: 500;
}

strong {
  color: var(--text-primary);
  font-weight: 600;
}

/* Floating Bottom Menu */
.floating-menu {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--menu-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--menu-border);
  border-radius: 50px;
  padding: 8px 16px;
  box-shadow: var(--menu-shadow);
  z-index: 1000;
  transition: all 0.3s ease;
}

.floating-menu:hover {
  transform: translateX(-50%) translateY(-2px);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.18);
}

.menu-item {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background: transparent;
  border: none;
  border-radius: 50%;
  cursor: pointer;
  color: var(--text-muted);
  font-size: 16px;
  transition: all 0.2s ease;
}

.menu-item:hover {
  background: var(--bg-secondary);
  color: var(--text-primary);
}

.menu-item.active {
  background: var(--accent-color);
  color: white;
}

.menu-divider {
  width: 1px;
  height: 24px;
  background: var(--border-color);
}

.theme-toggle {
  position: relative;
}

.theme-toggle .sun-icon,
.theme-toggle .moon-icon {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  transition:
    opacity 0.3s ease,
    transform 0.3s ease;
}

.theme-toggle .sun-icon {
  opacity: 1;
}

.theme-toggle .moon-icon {
  opacity: 0;
}

[data-theme="dark"] .theme-toggle .sun-icon {
  opacity: 0;
  transform: translate(-50%, -50%) rotate(90deg);
}

[data-theme="dark"] .theme-toggle .moon-icon {
  opacity: 1;
  transform: translate(-50%, -50%) rotate(0deg);
}