/* ===================================================
   眷顧設計 | Tranquil Design — Complete Stylesheet
   =================================================== */

:root {
  /* Colors from Figma */
  --color-primary: #64695C;
  --color-primary-light: #AAAD9C;
  --color-secondary: #B59778;
  --color-tertiary: #CFB597;
  --color-accent: #C17857;
  --color-text-dark: #484C49;
  --color-text-muted: #7D7E7D;
  --color-bg-light: #F3F4F6;
  --color-bg-cream: #EBE8DE;
  --color-bg-cream-dark: #E3DED0;
  --color-bg-white: #FFFFFF;
  --color-black: #000000;

  /* Fonts */
  --font-serif: 'Cormorant Garamond', serif;
  --font-sans: 'Inter', 'Noto Sans TC', sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  color: var(--color-text-dark);
  background-color: var(--color-bg-white);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6, .hero-title, .section-title, .nav-title, .portfolio-card-title, .about-brand-title {
  font-family: var(--font-serif);
}

body.no-scroll {
  overflow: hidden;
}

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

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

/* ===================================================
   OPENING ANIMATION
   =================================================== */

@keyframes textFadeIn {
  0% { opacity: 0; transform: translateY(8px); }
  100% { opacity: 1; transform: translateY(0); }
}

@keyframes textFadeOut {
  0% { opacity: 1; transform: translateY(0); }
  100% { opacity: 0; transform: translateY(-8px); }
}

@keyframes maskSlideUp {
  0% { transform: translateY(0); }
  100% { transform: translateY(-100%); }
}

@keyframes contentFadeIn {
  0% { opacity: 0; transform: translateY(20px); }
  100% { opacity: 1; transform: translateY(0); }
}

.opening-mask {
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100vh;
  background-color: var(--color-bg-cream);
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
}

.opening-mask.phase-text-in .opening-text {
  animation: textFadeIn 0.8s ease-out forwards;
}

.opening-mask.phase-text-out .opening-text {
  animation: textFadeOut 0.6s ease-in forwards;
}

.opening-mask.phase-slide-up {
  animation: maskSlideUp 1s cubic-bezier(0.76, 0, 0.24, 1) forwards;
}

.opening-mask.phase-done {
  display: none;
}

.opening-text {
  color: var(--color-text-dark);
  font-family: var(--font-serif);
  font-size: 1.8rem;
  font-weight: 500;
  letter-spacing: 0.4em;
  text-align: center;
  opacity: 0;
  padding: 0 1rem;
}

@media (max-width: 640px) {
  .opening-text {
    font-size: 1.2rem;
    letter-spacing: 0.25em;
  }
}

/* Staggered content fade-in */
.stagger-item {
  opacity: 0;
  transform: translateY(20px);
}

.stagger-item.visible {
  animation: contentFadeIn 0.8s ease-out forwards;
}

/* ===================================================
   LAYOUT
   =================================================== */

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* ===================================================
   NAVBAR
   =================================================== */

.header {
  position: fixed;
  top: 0; left: 0;
  width: 100%;
  z-index: 100;
  background-color: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-bg-light);
  transition: background-color 0.3s ease;
}

.header-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 2.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 75px;
}

.header-logo {
  width: 84px;
  height: 75px;
  display: flex;
  align-items: center;
  cursor: pointer;
}

.header-logo img {
  height: 60px;
  width: auto;
  object-fit: contain;
}

.nav-links {
  display: flex;
  gap: 2rem;
  align-items: center;
}

.nav-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.3s ease;
  padding: 0.25rem 0;
}

.nav-item:hover {
  transform: scale(1.02);
}

.nav-item:active {
  transform: scale(0.98);
}

.nav-item:hover .nav-title,
.nav-item.active .nav-title {
  color: var(--color-secondary);
}

.nav-item:hover .nav-subtitle,
.nav-item.active .nav-subtitle {
  color: var(--color-secondary);
}

.nav-title {
  color: var(--color-text-dark);
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 2.2px;
  text-transform: uppercase;
  transition: color 0.3s ease;
  font-family: var(--font-serif);
}

.nav-subtitle {
  color: var(--color-primary);
  font-size: 10px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 2.2px;
  margin-bottom: 2px;
  font-family: var(--font-sans);
}

/* Mobile nav toggle */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 5px;
}

.nav-toggle span {
  width: 24px;
  height: 2px;
  background: var(--color-text-dark);
  transition: 0.3s;
}

@media (max-width: 900px) {
  .nav-links {
    display: none;
    position: absolute;
    top: 75px; left: 0;
    width: 100%;
    background: rgba(255,255,255,0.98);
    backdrop-filter: blur(12px);
    flex-direction: column;
    padding: 2rem;
    gap: 1.5rem;
    border-bottom: 1px solid var(--color-bg-light);
  }
  .nav-links.open { display: flex; }
  .nav-toggle { display: flex; }
}

/* ===================================================
   HERO SECTION
   =================================================== */

.hero-section {
  position: relative;
  height: 550px;
  margin-top: 75px;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(0,0,0,0.15) 0%, rgba(0,0,0,0.05) 100%);
}

.hero-content {
  position: relative;
  height: 100%;
  display: flex;
  align-items: center;
  padding-left: 64px;
}

.hero-title {
  color: var(--color-bg-white);
  font-size: 5rem;
  font-weight: 700;
  line-height: 1.1;
  text-transform: uppercase;
  letter-spacing: -1.6px;
  max-width: 700px;
  text-shadow: 0 2px 20px rgba(0,0,0,0.15);
}

@media (max-width: 768px) {
  .hero-section { height: 400px; }
  .hero-title { font-size: 2.8rem; padding-left: 0; }
  .hero-content { padding: 0 2rem; }
}

/* ===================================================
   SECTION HEADERS
   =================================================== */

.section-header {
  margin-bottom: 3rem;
}

.section-header.centered {
  text-align: center;
}

.section-label {
  color: var(--color-primary);
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 4.8px;
  font-family: var(--font-serif);
  margin-bottom: 0.5rem;
}

.section-title {
  font-size: 28px;
  font-weight: 700;
  letter-spacing: 10px;
  color: var(--color-text-dark);
  text-transform: uppercase;
}

@media (max-width: 600px) {
  .section-title {
    font-size: 22px;
    letter-spacing: 5px;
  }
}

/* ===================================================
   PORTFOLIO SECTION (HOME)
   =================================================== */

.portfolio-home {
  padding: 5rem 0;
}

.portfolio-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: 3rem;
  padding: 0 2rem;
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
}

.portfolio-header .section-header {
  margin-bottom: 0;
}

.btn-view-all {
  font-family: var(--font-serif);
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 2.4px;
  color: var(--color-primary);
  border: none;
  background: none;
  border-bottom: 2px solid var(--color-secondary);
  padding-bottom: 10px;
  cursor: pointer;
  transition: all 0.3s ease;
}

.btn-view-all:hover {
  color: var(--color-secondary);
  transform: scale(1.02);
}

.btn-view-all:active {
  transform: scale(0.98);
}

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 48px 48px;
  max-width: 1020px;
  margin: 0 auto;
  padding: 0 2rem;
}

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

.portfolio-grid-2 {
  grid-template-columns: repeat(2, 1fr);
  max-width: 700px;
  margin-top: 48px;
}

@media (max-width: 900px) {
  .portfolio-grid { grid-template-columns: repeat(2, 1fr) !important; }
}

@media (max-width: 600px) {
  .portfolio-grid { grid-template-columns: 1fr !important; }
}

.portfolio-card {
  cursor: pointer;
  transition: transform 0.3s ease;
}

.portfolio-card:hover {
  transform: scale(1.02);
}

.portfolio-card:active {
  transform: scale(0.98);
}

.portfolio-card-image {
  width: 100%;
  aspect-ratio: 3 / 2;
  border-radius: 12px;
  overflow: hidden;
  background-color: var(--color-bg-light);
  margin-bottom: 24px;
}

.portfolio-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.portfolio-card:hover .portfolio-card-image img {
  transform: scale(1.08);
}

.portfolio-card-info {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
}

.portfolio-card-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--color-text-dark);
  letter-spacing: 1.2px;
  margin-bottom: 8px;
}

.portfolio-card-meta {
  font-size: 13px;
  color: var(--color-primary);
  letter-spacing: 1px;
  font-weight: 500;
  font-family: var(--font-sans);
}

.portfolio-card-hashtags {
  font-size: 12px;
  color: var(--color-primary);
  letter-spacing: 1px;
  margin-top: 4px;
  opacity: 0.8;
}

.portfolio-card-arrow {
  color: var(--color-secondary);
  font-size: 18px;
  margin-top: 2px;
  flex-shrink: 0;
}

@media (max-width: 600px) {
  .portfolio-card-image { width: 100%; }
}

/* ===================================================
   PORTFOLIO LIST PAGE
   =================================================== */

.portfolio-page {
  padding-top: 75px;
  min-height: 100vh;
}

.portfolio-filters {
  display: flex;
  gap: 0;
  margin: 2rem auto 3rem;
  max-width: 620px;
  border-left: 1px solid var(--color-text-dark);
}

.filter-btn {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1rem;
  border: none;
  border-right: 1px solid var(--color-text-dark);
  background: none;
  cursor: pointer;
  transition: all 0.3s ease;
  font-family: var(--font-serif);
}

.filter-btn:hover {
  background-color: var(--color-bg-cream);
  transform: scale(1.02);
}

.filter-btn:active {
  transform: scale(0.98);
}

.filter-btn.active {
  background-color: var(--color-bg-cream);
}

.filter-btn .filter-en {
  font-size: 10px;
  letter-spacing: 1px;
  color: var(--color-primary);
  text-transform: capitalize;
}

.filter-btn .filter-zh {
  font-size: 14px;
  font-weight: 700;
  color: var(--color-text-dark);
  letter-spacing: 2px;
  margin-top: 2px;
}

.portfolio-list-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 48px 56px;
  max-width: 1060px;
  margin: 0 auto 4rem;
  padding: 0 2rem;
}

@media (max-width: 900px) {
  .portfolio-list-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 600px) {
  .portfolio-list-grid { grid-template-columns: 1fr; }
}

/* ===================================================
   PROJECT DETAIL PAGE
   =================================================== */

.project-detail {
  padding-top: 75px;
  min-height: 100vh;
}

.project-detail-inner {
  max-width: 1140px;
  margin: 0 auto;
  padding: 2rem;
  display: grid;
  grid-template-columns: 190px 1fr;
  gap: 40px;
}

.project-sidebar {
  padding-top: 1rem;
}

.project-back {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--color-text-dark);
  font-size: 24px;
  cursor: pointer;
  margin-bottom: 1.5rem;
  transition: color 0.3s ease;
}

.project-back:hover {
  color: var(--color-secondary);
}

.project-back-icon {
  font-size: 28px;
}

.project-meta-type {
  font-size: 12px;
  letter-spacing: 1px;
  color: var(--color-primary);
  text-transform: uppercase;
  margin-bottom: 4px;
}

.project-meta-title {
  font-size: 32px;
  font-weight: 700;
  color: var(--color-text-dark);
  letter-spacing: 1px;
  margin-bottom: 1rem;
}

.project-meta-desc {
  font-size: 12px;
  color: var(--color-text-muted);
  line-height: 1.8;
  letter-spacing: 0.5px;
}

.project-meta-tags {
  margin-top: 1rem;
  font-size: 12px;
  color: var(--color-secondary);
  letter-spacing: 1px;
}

.project-images {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.project-images img {
  width: 100%;
  border-radius: 4px;
  object-fit: cover;
}

.project-hero-img {
  height: 380px;
}

.project-gallery-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.project-gallery-row img {
  height: 280px;
}

@media (max-width: 768px) {
  .project-detail-inner {
    grid-template-columns: 1fr;
  }
  .project-hero-img { height: 250px; }
  .project-gallery-row img { height: 200px; }
}

/* ===================================================
   ABOUT PAGE
   =================================================== */

.about-page {
  padding-top: 75px;
  min-height: 100vh;
}

.about-brand {
  text-align: center;
  padding: 4rem 2rem 3rem;
}

.about-brand-title {
  font-size: 28px;
  font-weight: 700;
  letter-spacing: 6px;
  color: var(--color-text-dark);
  margin-bottom: 2rem;
}

.about-brand-philosophy {
  font-size: 16px;
  color: var(--color-text-dark);
  letter-spacing: 2px;
  line-height: 2;
  max-width: 740px;
  margin: 0 auto 1rem;
}

.about-brand-en {
  font-size: 14px;
  color: var(--color-text-muted);
  letter-spacing: 3px;
  text-transform: uppercase;
}

.about-team {
  padding: 3rem 2rem 5rem;
  max-width: 1200px;
  margin: 0 auto;
}

.about-team-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  margin-top: 2rem;
}

.team-photo {
  width: 100%;
  height: 360px;
  background: var(--color-bg-light);
  border-radius: 8px;
  grid-row: span 3;
}

.team-members {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.team-member {
  display: grid;
  grid-template-columns: 1fr 1fr;
  border-bottom: 1px solid var(--color-bg-light);
  padding: 1rem 0;
}

.team-member-role {
  font-size: 12px;
  color: var(--color-text-muted);
  letter-spacing: 1px;
  margin-bottom: 4px;
}

.team-member-name {
  font-size: 16px;
  font-weight: 600;
  color: var(--color-text-dark);
  letter-spacing: 2px;
}

@media (max-width: 768px) {
  .about-team-grid { grid-template-columns: 1fr; }
  .team-photo { height: 240px; }
}

/* ===================================================
   SERVICES SECTION / PAGE
   =================================================== */

.services-section {
  padding: 5rem 0;
}

.process-steps {
  display: flex;
  justify-content: center;
  gap: 50px;
  flex-wrap: wrap;
  max-width: 700px;
  margin: 0 auto;
}

.process-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 72px;
  text-align: center;
}

.process-step:nth-child(even) {
  margin-top: 70px;
}

@media (max-width: 600px) {
  .process-step:nth-child(even) {
    margin-top: 0;
  }
}

.process-step-num {
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 700;
  color: var(--color-text-dark);
  margin-bottom: 8px;
}

.process-step-line {
  width: 1px;
  height: 50px;
  background: var(--color-text-muted);
  opacity: 0.3;
  margin-bottom: 8px;
}

.process-step-circle {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background-color: var(--color-tertiary);
  margin-bottom: 12px;
}

.process-step:nth-child(odd) .process-step-circle {
  background-color: var(--color-primary);
}

.process-step-label {
  font-family: var(--font-sans);
  font-size: 12px;
  font-weight: 700;
  color: var(--color-text-dark);
  letter-spacing: 1px;
}

/* ===================================================
   FOOTER
   =================================================== */

.footer {
  background-color: var(--color-bg-cream);
  padding: 3.5rem 0 1.5rem;
}

.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

.footer-top {
  display: flex;
  gap: 3rem;
  align-items: flex-start;
  margin-bottom: 2rem;
}

.footer-logo-area {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.footer-logo {
  width: 45px;
  height: 40px;
  object-fit: contain;
}

.btn-consult {
  background-color: var(--color-secondary);
  color: var(--color-bg-white);
  padding: 0.4rem 1.2rem;
  border: none;
  border-radius: 12px;
  font-family: var(--font-serif);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 1px;
  cursor: pointer;
  transition: all 0.3s ease;
}

.btn-consult:hover {
  background-color: var(--color-tertiary);
  transform: scale(1.02);
}

.btn-consult:active {
  transform: scale(0.98);
}

.footer-contact {
  font-size: 12px;
  color: var(--color-text-dark);
  line-height: 2;
  letter-spacing: 1px;
  font-weight: 500;
}

.footer-branches {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.branch-tabs {
  display: flex;
}

.branch-tab {
  padding: 0.3rem 1.5rem;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 1px;
  color: var(--color-text-dark);
  border: none;
  cursor: pointer;
  border-radius: 8px 8px 0 0;
  transition: all 0.3s ease;
  font-family: var(--font-serif);
}

.branch-tab.active {
  background-color: rgba(207, 181, 151, 0.3);
}

.branch-tab:not(.active) {
  background-color: var(--color-bg-cream);
}

.branch-tab:hover {
  transform: scale(1.02);
}

.branch-address {
  font-size: 12px;
  color: var(--color-text-dark);
  letter-spacing: 1px;
  font-weight: 500;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 1.5rem;
}

.social-links {
  display: flex;
  gap: 3rem;
  align-items: center;
}

.social-icon {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background-color: var(--color-secondary);
  color: var(--color-bg-white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-family: var(--font-sans);
  cursor: pointer;
  transition: all 0.3s ease;
}

.social-icon:hover {
  background-color: var(--color-tertiary);
  transform: scale(1.1);
}

.social-icon:active {
  transform: scale(0.9);
}

.copyright {
  color: var(--color-text-muted);
  font-size: 10px;
  font-family: var(--font-sans);
  letter-spacing: 1px;
}

@media (max-width: 768px) {
  .footer-top { flex-direction: column; gap: 2rem; }
  .footer-bottom { flex-direction: column-reverse; gap: 1rem; }
}

/* ===================================================
   UTILITY / BUTTON STYLES
   =================================================== */

.btn-outline {
  background: transparent;
  border: 1px solid var(--color-primary);
  color: var(--color-primary);
  padding: 0.75rem 2rem;
  font-family: var(--font-serif);
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  cursor: pointer;
  transition: all 0.3s ease;
}

.btn-outline:hover {
  background: var(--color-primary);
  color: var(--color-bg-white);
  transform: scale(1.02);
}

.btn-outline:active {
  transform: scale(0.98);
}

/* ===================================================
   KNOWLEDGE / EBOOK PLACEHOLDER PAGES
   =================================================== */

.placeholder-page {
  padding-top: 75px;
  min-height: 70vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 6rem 2rem;
}

.placeholder-page .section-title {
  margin-bottom: 1rem;
}

.placeholder-page p {
  color: var(--color-text-muted);
  font-size: 14px;
  letter-spacing: 2px;
}