/* ==========================================================================
   Starclarity Investment / 星澄投資 — site stylesheet
   ========================================================================== */

:root {
  --color-bg: #ffffff;
  --color-bg-alt: #f7f8fa;
  --color-bg-dark: #0f1730;
  --color-text: #14171f;
  --color-text-muted: #5b6270;
  --color-text-faint: #9198a6;
  --color-border: #e7e9ee;
  --color-accent: #16264f;
  --color-accent-soft: #eef1f7;
  --color-gold: #b08d46;
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --container: 1120px;
  --font-sans: "Inter", -apple-system, BlinkMacSystemFont, "PingFang TC",
    "Noto Sans TC", "Microsoft JhengHei", "Segoe UI", sans-serif;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  line-height: 1.6;
}

img {
  max-width: 100%;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
}

ul,
ol {
  margin: 0;
  padding: 0;
  list-style: none;
}

h1, h2, h3, h4, p {
  margin: 0;
}

[hidden] {
  display: none !important;
}

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 28px;
}

/* ---------- Header ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.86);
  backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--color-border);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}

.brand {
  display: flex;
  align-items: center;
}

.brand-logo {
  height: 34px;
  width: auto;
  display: block;
}

.nav-primary {
  display: flex;
  align-items: center;
  gap: 36px;
}

.nav-primary a {
  font-size: 14.5px;
  font-weight: 500;
  color: var(--color-text-muted);
  padding: 6px 2px;
  border-bottom: 2px solid transparent;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.nav-primary a:hover,
.nav-primary a[aria-current="page"] {
  color: var(--color-text);
  border-color: var(--color-accent);
}

.nav-tools {
  display: flex;
  align-items: center;
  gap: 14px;
}

.lang-toggle {
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.03em;
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  color: var(--color-text);
  border-radius: 999px;
  padding: 7px 14px;
  cursor: pointer;
  transition: background 0.2s var(--ease), border-color 0.2s var(--ease);
}

.lang-toggle:hover {
  background: var(--color-accent-soft);
  border-color: var(--color-accent);
}

.nav-toggle {
  display: none;
  width: 40px;
  height: 40px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-bg);
  cursor: pointer;
  padding: 0;
  align-items: center;
  justify-content: center;
}

.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after {
  content: "";
  display: block;
  width: 18px;
  height: 2px;
  background: var(--color-text);
  position: relative;
  transition: transform 0.2s var(--ease), opacity 0.2s var(--ease);
}

.nav-toggle span::before {
  position: absolute;
  top: -6px;
}

.nav-toggle span::after {
  position: absolute;
  top: 6px;
}

/* ---------- Hero ---------- */

.hero {
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--color-border);
}

.hero-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
}

.hero-inner {
  position: relative;
  z-index: 2;
  padding: 132px 0 108px;
  text-align: center;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-gold);
  margin-bottom: 22px;
}

.eyebrow::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-gold);
}

.hero h1 {
  font-size: clamp(32px, 5vw, 52px);
  font-weight: 700;
  letter-spacing: -0.01em;
  line-height: 1.25;
  max-width: 860px;
  margin: 0 auto;
}

.hero-sub {
  max-width: 640px;
  margin: 24px auto 0;
  font-size: clamp(18px, 2vw, 21px);
  color: var(--color-text-muted);
}

.br-wide {
  display: none;
}

@media (min-width: 640px) {
  .br-wide {
    display: inline;
  }
}

.hero-actions {
  display: flex;
  gap: 14px;
  justify-content: center;
  margin-top: 40px;
  flex-wrap: wrap;
}

.page-hero {
  padding: 76px 0 64px;
  text-align: left;
}

.page-hero .eyebrow {
  margin-bottom: 16px;
}

.page-hero h1 {
  font-size: clamp(26px, 3.4vw, 38px);
  max-width: 1040px;
  margin: 0;
}

.page-hero .hero-sub {
  margin: 18px 0 0;
  max-width: 760px;
}

.quote-cite {
  margin: 14px 0 0;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text-faint);
}

/* ---------- Buttons ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 26px;
  border-radius: 999px;
  font-size: 14.5px;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid transparent;
  transition: transform 0.2s var(--ease), background 0.2s var(--ease),
    border-color 0.2s var(--ease), color 0.2s var(--ease);
}

.btn:hover {
  transform: translateY(-1px);
}

.btn-primary {
  background: var(--color-accent);
  color: #fff;
}

.btn-primary:hover {
  background: #101d3d;
}

.btn-ghost {
  background: transparent;
  border-color: var(--color-border);
  color: var(--color-text);
}

.btn-ghost:hover {
  border-color: var(--color-accent);
}

/* ---------- Sections ---------- */

section {
  padding: 96px 0;
}

section.alt {
  background: var(--color-bg-alt);
}

.section-head {
  max-width: 640px;
  margin-bottom: 56px;
}

.section-head.center {
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}

.kicker {
  display: block;
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-gold);
  margin-bottom: 14px;
}

.section-head h2 {
  font-size: clamp(24px, 3vw, 32px);
  font-weight: 700;
  letter-spacing: -0.01em;
  line-height: 1.35;
}

.section-head p {
  margin-top: 16px;
  color: var(--color-text-muted);
  font-size: 16px;
}

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ---------- Pillars / grid cards ---------- */

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 32px;
  transition: transform 0.25s var(--ease), box-shadow 0.25s var(--ease),
    border-color 0.25s var(--ease);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 20px 40px -24px rgba(15, 23, 48, 0.18);
  border-color: #d9dee8;
}

.card-index {
  font-size: 13px;
  font-weight: 700;
  color: var(--color-gold);
  letter-spacing: 0.04em;
  margin-bottom: 18px;
}

.card h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 10px;
}

.card p {
  color: var(--color-text-muted);
  font-size: 14.5px;
}

/* ---------- Team ---------- */

.team-card {
  text-align: center;
}

.team-card .avatar {
  width: 84px;
  height: 84px;
  margin: 0 auto 20px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 20px;
  color: #fff;
  background: linear-gradient(135deg, var(--color-accent), #2c4374);
  overflow: hidden;
}

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

.team-card h3 {
  font-size: 17px;
  font-weight: 700;
}

.team-card .name-zh {
  font-weight: 500;
  color: var(--color-text-muted);
  font-size: 14.5px;
}

.team-card .role {
  display: block;
  margin-top: 6px;
  font-size: 13px;
  font-weight: 600;
  color: var(--color-gold);
}

.team-card .bio {
  margin-top: 14px;
  font-size: 13.5px;
  color: var(--color-text-muted);
  line-height: 1.6;
  text-align: left;
}

/* ---------- Stats strip ---------- */

.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  padding: 48px 0;
}

.stat {
  text-align: center;
}

.stat strong {
  display: block;
  font-size: clamp(36px, 5.6vw, 58px);
  font-weight: 700;
  color: var(--color-accent);
}

.stat span {
  display: block;
  margin-top: 8px;
  font-size: 13.5px;
  color: var(--color-text-muted);
}

/* ---------- Process / timeline (about page) ---------- */

.process {
  counter-reset: step;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.process li {
  counter-increment: step;
}

.process li::before {
  content: counter(step, decimal-leading-zero);
  display: block;
  color: var(--color-gold);
  font-weight: 700;
  font-size: 13px;
  letter-spacing: 0.04em;
  margin-bottom: 18px;
}

.process h3 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 8px;
}

.process p {
  color: var(--color-text-muted);
  font-size: 14.5px;
}

/* ---------- Quote block ---------- */

.quote-block {
  border-radius: var(--radius-lg);
  background: var(--color-accent);
  color: #fff;
  padding: 56px;
  text-align: center;
}

.quote-block blockquote {
  font-size: clamp(19px, 2.4vw, 24px);
  font-weight: 600;
  line-height: 1.55;
  max-width: 760px;
  margin: 0 auto;
}

.quote-block cite {
  display: block;
  margin-top: 20px;
  font-size: 13.5px;
  font-style: normal;
  color: rgba(255, 255, 255, 0.6);
  letter-spacing: 0.04em;
}

/* ---------- Portfolio ---------- */

.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 44px;
}

.filter-btn {
  font-family: var(--font-sans);
  font-size: 13.5px;
  font-weight: 600;
  padding: 9px 18px;
  border-radius: 999px;
  border: 1px solid var(--color-border);
  background: var(--color-bg);
  color: var(--color-text-muted);
  cursor: pointer;
  transition: all 0.2s var(--ease);
}

.filter-btn:hover {
  border-color: var(--color-accent);
  color: var(--color-text);
}

.filter-btn.is-active {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: #fff;
}

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.portfolio-card {
  display: block;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 32px 24px;
  text-align: center;
  transition: transform 0.25s var(--ease), box-shadow 0.25s var(--ease),
    border-color 0.25s var(--ease), opacity 0.25s var(--ease);
}

.portfolio-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 18px 36px -22px rgba(15, 23, 48, 0.2);
  border-color: #d9dee8;
}

.portfolio-card.is-hidden {
  display: none;
}

.mark {
  width: 56px;
  height: 56px;
  margin: 0 auto 16px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 16px;
  color: #fff;
  background: linear-gradient(135deg, var(--color-accent), #2c4374);
}

.logo-box {
  height: 88px;
  margin: 0 auto 32px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.logo-box img {
  max-height: 100%;
  max-width: 100%;
  width: auto;
  object-fit: contain;
}

.portfolio-card h4 {
  font-size: 14.5px;
  font-weight: 700;
  margin-bottom: 6px;
}

.name-zh-inline {
  display: block;
  font-size: 12.5px;
  font-weight: 500;
  color: var(--color-text-muted);
  margin-top: 2px;
}

.portfolio-card .tag {
  display: inline-block;
  font-size: 11.5px;
  font-weight: 600;
  color: var(--color-text-faint);
  letter-spacing: 0.03em;
}

.placeholder-note {
  margin-top: 40px;
  padding: 18px 22px;
  border-radius: var(--radius-md);
  background: var(--color-accent-soft);
  border: 1px dashed #c3cbdc;
  color: var(--color-text-muted);
  font-size: 13.5px;
  text-align: center;
}

/* ---------- Contact ---------- */

.contact-card {
  max-width: 560px;
  margin: 0 auto;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 44px;
  text-align: center;
}

.contact-email {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-accent);
  margin: 18px 0 26px;
  word-break: break-all;
}

.contact-actions {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}

.copy-btn {
  font-family: var(--font-sans);
}

.toast {
  position: fixed;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%) translateY(16px);
  background: var(--color-accent);
  color: #fff;
  padding: 12px 22px;
  border-radius: 999px;
  font-size: 13.5px;
  font-weight: 600;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s var(--ease), transform 0.25s var(--ease);
  z-index: 200;
}

.toast.is-visible {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

.contact-meta {
  margin-top: 40px;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
}

.contact-meta div {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 20px;
  text-align: left;
}

.contact-meta h4 {
  font-size: 12.5px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-text-faint);
  margin-bottom: 8px;
}

.contact-meta p {
  font-size: 14.5px;
  color: var(--color-text);
}

/* ---------- Footer ---------- */

.site-footer {
  border-top: 1px solid var(--color-border);
  padding: 40px 0;
  background: var(--color-bg-alt);
}

.site-footer .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-brand {
  font-size: 13.5px;
  color: var(--color-text-muted);
}

.footer-links {
  display: flex;
  gap: 22px;
}

.footer-links a {
  font-size: 13.5px;
  color: var(--color-text-muted);
  transition: color 0.2s var(--ease);
}

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

/* ---------- Responsive ---------- */

@media (max-width: 960px) {
  .grid-3,
  .process {
    grid-template-columns: repeat(2, 1fr);
  }

  .portfolio-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .stats {
    grid-template-columns: repeat(2, 1fr);
    row-gap: 32px;
  }
}

@media (max-width: 760px) {
  .brand-logo {
    height: 26px;
  }

  .nav-primary {
    position: fixed;
    top: 76px;
    left: 0;
    right: 0;
    background: #fff;
    border-bottom: 1px solid var(--color-border);
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
    padding: 12px 28px 20px;
    transform: translateY(-8px);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s var(--ease), transform 0.2s var(--ease);
  }

  .nav-primary a {
    width: 100%;
    padding: 10px 0;
    border-bottom: none;
  }

  body.nav-open .nav-primary {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
  }

  .nav-toggle {
    display: inline-flex;
  }

  body.nav-open .nav-toggle span {
    background: transparent;
  }

  body.nav-open .nav-toggle span::before {
    transform: translateY(6px) rotate(45deg);
  }

  body.nav-open .nav-toggle span::after {
    transform: translateY(-6px) rotate(-45deg);
  }

  .grid-3,
  .grid-2,
  .process {
    grid-template-columns: 1fr;
  }

  .portfolio-grid {
    grid-template-columns: 1fr;
    max-width: 360px;
    margin: 0 auto;
  }

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

  section {
    padding: 64px 0;
  }

  .quote-block {
    padding: 36px 24px;
  }

  .contact-meta {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .portfolio-grid {
    grid-template-columns: 1fr;
    max-width: 360px;
    margin: 0 auto;
  }

  .hero-inner {
    padding: 100px 0 72px;
  }
}