/*
  /work/ 頁面專屬樣式表
  採用高質感暗色調 (Dark Glassmorphism) 與高級科技漸層，
  展現資深前端工程師與系統架構師的專業形象與作品展示。
*/

/*
檔案用途：求職作品集頁面專用樣式表 (Work Portfolio Stylesheet)
所在層：sunpochin.github.io/work/styles.css
主要關聯：由 sunpochin.github.io/work/index.html 載入，定義暗色科技質感與卡片佈局
*/

:root {
  --bg-primary: #090d16;
  --bg-card: rgba(18, 24, 38, 0.75);
  --card-border: rgba(255, 255, 255, 0.08);
  --card-hover-border: rgba(129, 140, 248, 0.4);
  
  --text-primary: #f8fafc;
  --text-muted: #94a3b8;
  --text-subtle: #64748b;
  
  --accent-cyan: #38bdf8;
  --accent-indigo: #818cf8;
  --accent-purple: #c084fc;
  --grad-hero: linear-gradient(135deg, #38bdf8 0%, #818cf8 50%, #c084fc 100%);
  --grad-card-top: linear-gradient(90deg, #38bdf8, #818cf8);
  
  --tag-bg: rgba(255, 255, 255, 0.05);
  --tag-border: rgba(255, 255, 255, 0.1);
  --tag-text: #cbd5e1;
  
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  
  --font-main: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", "Noto Sans TC", sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
}

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

html {
  font-family: var(--font-main);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: 
    radial-gradient(circle at 10% 20%, rgba(56, 189, 248, 0.07) 0%, transparent 40%),
    radial-gradient(circle at 90% 80%, rgba(192, 132, 252, 0.07) 0%, transparent 40%),
    var(--bg-primary);
}

.container {
  width: 100%;
  max-width: 1000px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* 全站膠囊導覽列 (Portal Navigation Bar) */
.portal-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
}

.nav-item {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.45rem 1.1rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--card-border);
  color: var(--text-muted);
  font-size: 0.875rem;
  font-weight: 600;
  text-decoration: none;
  backdrop-filter: blur(10px);
  transition: all 0.2s ease;
}

.nav-item:hover {
  background: rgba(255, 255, 255, 0.09);
  color: var(--text-primary);
  border-color: rgba(255, 255, 255, 0.2);
  transform: translateY(-1px);
}

.nav-item.active {
  background: rgba(99, 102, 241, 0.2);
  color: #ffffff;
  border-color: rgba(99, 102, 241, 0.5);
  box-shadow: 0 4px 12px rgba(99, 102, 241, 0.25);
}

/* Header 導覽區 */
.work-header {
  padding: 2.5rem 0 1.5rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.nav-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.home-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-muted);
  text-decoration: none;
  padding: 0.4rem 0.85rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--card-border);
  transition: all 0.2s ease;
}

.home-link:hover {
  color: var(--accent-cyan);
  border-color: var(--card-hover-border);
}

.home-link svg {
  width: 16px;
  height: 16px;
}

.status-indicator {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8125rem;
  color: #34d399;
  background: rgba(52, 211, 153, 0.1);
  padding: 0.35rem 0.85rem;
  border-radius: 999px;
  border: 1px solid rgba(52, 211, 153, 0.25);
  font-weight: 500;
}

.status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #34d399;
  box-shadow: 0 0 8px #34d399;
}

/* Hero 個人品牌區 */
.hero-section {
  padding: 3.5rem 0 2.5rem;
}

.hero-title-group {
  margin-bottom: 1.5rem;
}

.hero-name {
  font-size: 2.75rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.15;
  background: var(--grad-hero);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 0.5rem;
}

.hero-subtitle {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-primary);
  opacity: 0.9;
}

.hero-bio {
  font-size: 1.05rem;
  color: var(--text-muted);
  max-width: 750px;
  line-height: 1.7;
  margin-bottom: 1.75rem;
}

.hero-links {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.btn-hero {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.65rem 1.25rem;
  border-radius: var(--radius-md);
  font-size: 0.9375rem;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.2s ease;
}

.btn-primary {
  background: var(--grad-hero);
  color: #ffffff;
  box-shadow: 0 4px 15px rgba(99, 102, 241, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(99, 102, 241, 0.45);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-primary);
  border: 1px solid var(--card-border);
}

.btn-secondary:hover {
  border-color: var(--card-hover-border);
  color: var(--accent-cyan);
}

/* 區塊共通標題 */
.section-title {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
  display: flex;
  align-items: center;
  gap: 0.65rem;
  color: var(--text-primary);
}

.section-title svg {
  width: 24px;
  height: 24px;
  color: var(--accent-cyan);
}

/* 技術棧 / 核心能力 (Tech Stack) */
.skills-section {
  padding: 2.5rem 0;
}

.skills-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}

.skill-card {
  background: var(--bg-card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  backdrop-filter: blur(10px);
}

.skill-category {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--accent-cyan);
  margin-bottom: 0.85rem;
}

.tag-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.tag {
  font-size: 0.8125rem;
  font-weight: 500;
  padding: 0.3rem 0.75rem;
  border-radius: 6px;
  background: var(--tag-bg);
  border: 1px solid var(--tag-border);
  color: var(--tag-text);
  font-family: var(--font-mono);
}

/* 代表作品區塊 (Featured Projects) */
.projects-section {
  padding: 2.5rem 0 4rem;
}

.projects-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

.project-card {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--card-border);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  backdrop-filter: blur(12px);
  transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
  display: flex;
  flex-direction: column;
}

.project-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  border-top-left-radius: var(--radius-lg);
  border-top-right-radius: var(--radius-lg);
  background: var(--grad-card-top);
  opacity: 0.6;
}

.project-card:hover {
  transform: translateY(-4px);
  border-color: var(--card-hover-border);
  box-shadow: 0 15px 35px -10px rgba(99, 102, 241, 0.2);
}

.project-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 1rem;
}

.project-title {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text-primary);
}

.project-type-badge {
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.2rem 0.6rem;
  border-radius: 999px;
  background: rgba(99, 102, 241, 0.15);
  color: var(--accent-indigo);
  border: 1px solid rgba(129, 140, 248, 0.3);
}

.project-desc {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 1.25rem;
}

.project-highlights {
  margin-bottom: 1.25rem;
  padding-left: 1.25rem;
}

.project-highlights li {
  font-size: 0.875rem;
  color: var(--text-primary);
  opacity: 0.9;
  margin-bottom: 0.35rem;
}

.project-footer {
  margin-top: auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-top: 1.25rem;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.project-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--accent-cyan);
  text-decoration: none;
  transition: color 0.2s ease;
}

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

.project-link svg {
  width: 16px;
  height: 16px;
}

/* 專案技術細節與架構亮點區塊 */
/* 避免直接使用 ad-hoc 內聯樣式，確保細節展示維持整體暗色科技視覺與動態響應 */
.tech-stack-details {
  margin: 1rem 0 1.25rem 0;
  padding: 1rem 1.15rem;
  background: rgba(15, 23, 42, 0.55);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-md);
}

.tech-stack-title {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--accent-cyan);
  margin-bottom: 0.65rem;
  letter-spacing: 0.02em;
}

.tech-stack-list {
  padding-left: 1.1rem;
  margin: 0;
}

.tech-stack-list li {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 0.45rem;
}

.tech-stack-list li strong {
  color: var(--text-primary);
}

/* 工程架構哲學 (Architecture Principles) */
.philosophy-section {
  padding: 2.5rem 0 4rem;
}

.philosophy-card {
  background: rgba(255, 255, 255, 0.02);
  border: 1px dashed rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-lg);
  padding: 2rem;
}

.philosophy-quote {
  font-size: 1.15rem;
  font-style: italic;
  color: var(--accent-cyan);
  margin-bottom: 1rem;
  line-height: 1.5;
}

.philosophy-text {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.75;
}

/* Footer */
.work-footer {
  padding: 2.5rem 0;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  text-align: center;
  font-size: 0.875rem;
  color: var(--text-subtle);
}

@media (min-width: 640px) {
  .skills-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .projects-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}