/* ALOT HK Site — Shared Design System
   Photo-first, premium dark theme
   Base: #1A1A2E  |  Accent: #AC225F  |  Text: #F5F0EB
   Fonts: Space Grotesk (display), Outfit (body)
*/

/* ── Fonts ── */
/* Google Fonts now loaded via <link rel="preload"> in each index.html to remove serial CSS @import chain */

/* ── CSS Tokens ── */
:root {
  --base-purple: #1A1A2E;
  --accent-magenta: #AC225F;
  --accent-magenta-hover: #FF4DA6;
  --near-white: #F5F0EB;
  --near-white-10: rgba(245, 240, 235, 0.1);
  --near-white-30: rgba(245, 240, 235, 0.3);
  --near-white-55: rgba(245, 240, 235, 0.55);
  --near-white-60: rgba(245, 240, 235, 0.6);
  --near-white-70: rgba(245, 240, 235, 0.7);
  --near-white-80: rgba(245, 240, 235, 0.8);
  --accent-magenta-on-dark: #E8558F;
  --black-soft: #12121F;

  --font-display: 'Space Grotesk', 'Outfit', 'PingFang TC', 'Microsoft JhengHei', 'Noto Sans TC', system-ui, sans-serif;
  --font-body: 'Outfit', 'Space Grotesk', 'PingFang TC', 'Microsoft JhengHei', 'Noto Sans TC', system-ui, sans-serif;

  --ease-smooth: cubic-bezier(0.22, 1, 0.36, 1);
  --transition-fast: 0.3s ease;
  --transition-medium: 0.6s var(--ease-smooth);
  --transition-slow: 1s var(--ease-smooth);
}

/* ── Reset / Base ── */
*, *::before, *::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background-color: var(--base-purple);
  color: var(--near-white);
  font-family: var(--font-body);
  font-weight: 300;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

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

h1, h2, h3, h4, h5, h6, p {
  margin: 0;
}

/* ── Typography ── */
.font-heading {
  font-family: var(--font-display);
}

.text-display {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 0.9;
  letter-spacing: -0.04em;
}

.text-outline {
  -webkit-text-stroke: 1px var(--near-white);
  color: transparent;
}

.text-magenta {
  color: var(--accent-magenta);
}

.text-near-white {
  color: var(--near-white);
}

.text-base-purple {
  color: var(--base-purple);
}

.bg-base-purple {
  background-color: var(--base-purple);
}

.bg-magenta {
  background-color: var(--accent-magenta);
}

.bg-near-white {
  background-color: var(--near-white);
}

/* ── Layout Grid ── */
.swiss-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 1.5rem;
  width: 100%;
}

.container-wide {
  width: 100%;
  max-width: 1400px;
  margin: 0 auto;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}

/* ── Navigation ── */
.site-nav {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 100;
  padding: 2rem 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  mix-blend-mode: difference;
}

.lang-switch {
  display: none;
  align-items: center;
  gap: 0.25rem;
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--near-white);
  margin-left: auto;
  margin-right: 1rem;
}

.lang-switch-item {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 2.25rem;
  height: 1.75rem;
  padding: 0 0.35rem;
  border-radius: 999px;
  color: var(--near-white);
  opacity: 0.7;
  transition: opacity var(--transition-fast), background-color var(--transition-fast);
  white-space: nowrap;
}

.lang-switch-item:hover,
.lang-switch-item:focus {
  opacity: 1;
}

.lang-switch-item.is-active {
  opacity: 1;
  background-color: var(--near-white);
  color: var(--base-purple);
}

.lang-switch-sep {
  opacity: 0.5;
  user-select: none;
}

.mobile-lang-switch {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  padding-top: 1rem;
  flex-wrap: wrap;
}

.mobile-lang-item {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  color: var(--near-white);
  opacity: 0.7;
}

.mobile-lang-item:hover,
.mobile-lang-item:focus {
  opacity: 1;
}

.mobile-lang-item.is-active {
  opacity: 1;
  text-decoration: underline;
  text-underline-offset: 0.3em;
}

.nav-logo {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.5rem;
  letter-spacing: -0.04em;
  color: var(--near-white);
  /* English logo lockup in the nav: separate it from the nav links. */
  margin-right: 40px;
  display: inline-flex;
  align-items: center;
}

.nav-logo-img {
  height: 36px;
  width: auto;
  display: block;
}

.nav-logo .dot {
  color: var(--accent-magenta);
}

.nav-links {
  display: none;
  gap: 2.5rem;
  font-size: 0.75rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  opacity: 0.8;
}

.nav-links a {
  transition: color var(--transition-fast);
}

.nav-links a:hover,
.nav-links a:focus {
  color: var(--accent-magenta);
}

.nav-toggle {
  display: flex;
  background: none;
  border: none;
  color: var(--near-white);
  cursor: pointer;
  padding: 0.5rem;
}

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1.25rem 2.5rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  transition: all var(--transition-fast);
  cursor: pointer;
  border: none;
}

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

.btn-primary:hover,
.btn-primary:focus {
  background-color: var(--accent-magenta-hover);
}

.btn-secondary {
  background-color: transparent;
  color: var(--near-white);
  border: 1px solid var(--near-white-30);
}

.btn-secondary:hover,
.btn-secondary:focus {
  background-color: var(--near-white);
  color: var(--base-purple);
}

.btn-dark {
  background-color: var(--base-purple);
  color: #fff;
}

.btn-dark:hover,
.btn-dark:focus {
  background-color: var(--accent-magenta-hover);
}

/* ── Photo hooks / gallery cards ── */
.photo-hook {
  position: relative;
  overflow: hidden;
  cursor: pointer;
}

.photo-hook img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(100%);
  transition: transform var(--transition-slow), filter var(--transition-medium);
}

.photo-hook:hover img,
.photo-hook:focus-within img {
  transform: scale(1.05);
  filter: grayscale(0%);
}

.photo-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to top,
    rgba(26, 26, 46, 0.92) 0%,
    rgba(26, 26, 46, 0.45) 40%,
    transparent 100%
  );
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 2rem;
}

.enquire-cue {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--accent-magenta);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  transform: translateY(10px);
  opacity: 0;
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

.photo-hook:hover .enquire-cue,
.photo-hook:focus-within .enquire-cue {
  transform: translateY(0);
  opacity: 1;
}

/* ── Section labels / headings ── */
.bg-base-purple .section-label,
.bg-base-purple .card-meta,
.bg-base-purple .text-link,
.bg-base-purple .text-magenta,
.bg-\[var\(--black-soft\)\] .section-label,
.bg-\[var\(--black-soft\)\] .card-meta,
.bg-\[var\(--black-soft\)\] .text-link,
.bg-\[var\(--black-soft\)\] .text-magenta,
.site-footer .section-label,
.work-card .card-meta,
.work-card .card-link:hover,
.work-card .card-link:focus { color: var(--accent-magenta-on-dark); }

.section-label,
.card-meta,
.text-link,
.text-magenta,
.process-number,
.fact-item dt,
.role-label,
.value-number,
.faq-item summary::after { color: var(--accent-magenta); }

body .section-label { color: var(--accent-magenta-on-dark); }

body .text-magenta { color: var(--accent-magenta-on-dark); }

.bg-near-white .section-label,
.bg-near-white .card-meta,
.bg-near-white .text-link,
.bg-near-white .text-magenta { color: var(--accent-magenta); }

.enquire-cue { color: var(--accent-magenta-on-dark); }

.section-headline {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  line-height: 0.95;
  letter-spacing: -0.04em;
}

.section-body {
  font-size: 1.125rem;
  line-height: 1.7;
  opacity: 0.6;
}

/* ── Selected work project cards ── */
.work-card {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--near-white-10);
}

.work-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(100%);
  transition: transform var(--transition-slow), filter var(--transition-medium);
}

.work-card:hover img,
.work-card:focus-within img {
  transform: scale(1.05);
  filter: grayscale(0%);
}

.work-card::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to top,
    var(--base-purple) 0%,
    rgba(26, 26, 46, 0.4) 50%,
    transparent 100%
  );
  opacity: 0.92;
  pointer-events: none;
}

.work-card .card-content {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  padding: 2rem;
  z-index: 2;
}

.work-card .card-meta {
  color: var(--accent-magenta-on-dark);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  display: block;
  margin-bottom: 0.5rem;
}

.work-card .card-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.75rem, 4vw, 3rem);
  line-height: 1;
  letter-spacing: -0.04em;
  color: #fff;
  margin-bottom: 1rem;
}

.work-card .card-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: #fff;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  border-bottom: 1px solid currentColor;
  padding-bottom: 0.25rem;
  transition: color var(--transition-fast), border-color var(--transition-fast);
}

.work-card .card-link:hover,
.work-card .card-link:focus {
  color: var(--accent-magenta);
  border-color: var(--accent-magenta);
}

/* ── Client logo bar ── */
.clients-bar {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 2rem;
  opacity: 0.35;
  filter: grayscale(100%);
}

.client-logo {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.5rem;
  letter-spacing: -0.02em;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--base-purple);
}

/* ── Bottom CTA band ── */
.cta-band {
  position: relative;
  background-color: var(--accent-magenta);
  color: #fff;
  text-align: center;
  padding: 8rem 1.5rem;
  overflow: hidden;
}

.cta-band .cta-glow {
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0.12;
}

.cta-band .cta-glow .glow-1 {
  position: absolute;
  top: -10%;
  left: -10%;
  width: 50%;
  height: 50%;
  background: var(--accent-magenta-hover);
  border-radius: 50%;
  filter: blur(120px);
}

.cta-band .cta-glow .glow-2 {
  position: absolute;
  bottom: -10%;
  right: -10%;
  width: 50%;
  height: 50%;
  background: #fff;
  border-radius: 50%;
  filter: blur(120px);
}

.cta-band .cta-headline {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2.5rem, 7vw, 5rem);
  line-height: 0.95;
  letter-spacing: -0.04em;
  margin-bottom: 1.5rem;
}

.cta-band .cta-body {
  font-size: 1.25rem;
  line-height: 1.7;
  opacity: 0.8;
  max-width: 700px;
  margin: 0 auto 3rem;
}

.cta-band .cta-secondary {
  font-size: 0.75rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  opacity: 0.7;
}

.cta-band .cta-secondary a {
  text-decoration: underline;
  transition: color var(--transition-fast);
}

.cta-band .cta-secondary a:hover,
.cta-band .cta-secondary a:focus {
  color: var(--base-purple);
}

/* ── Footer ── */
.site-footer {
  padding: 4rem 1.5rem;
  background-color: var(--base-purple);
  border-top: 1px solid var(--near-white-10);
  font-size: 0.75rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--near-white-55);
}

.site-footer .swiss-grid {
  align-items: center;
}

.footer-copy {
  font-weight: 700;
}

.footer-location {
  text-align: left;
  margin-top: 0.5rem;
}

/* ── Reveal on scroll ── */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity var(--transition-medium), transform var(--transition-medium);
}

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

/* ── Mobile menu overlay ── */
.mobile-menu {
  position: fixed;
  inset: 0;
  z-index: 99;
  background-color: var(--base-purple);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 2rem;
  transform: translateX(100%);
  transition: transform var(--transition-medium);
}

.mobile-menu.is-open {
  transform: translateX(0);
}

.mobile-menu a {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 2rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--near-white);
}

.mobile-menu a:hover,
.mobile-menu a:focus {
  color: var(--accent-magenta);
}

.mobile-menu-close {
  position: absolute;
  top: 2rem;
  right: 1.5rem;
  background: none;
  border: none;
  color: var(--near-white);
  cursor: pointer;
  padding: 0.5rem;
}

/* ── Responsive breakpoints ── */
@media (min-width: 768px) {
  .nav-links {
    display: flex;
  }

  .lang-switch {
    display: inline-flex;
  }

  .nav-toggle {
    display: none;
  }

  .footer-location {
    text-align: right;
    margin-top: 0;
  }

  .mobile-menu {
    display: none;
  }
}

@media (min-width: 1024px) {
  .site-nav {
    padding: 2rem 3rem;
  }

  .container-wide {
    padding-left: 3rem;
    padding-right: 3rem;
  }

  .photo-overlay,
  .work-card .card-content {
    padding: 3rem;
  }
}

/* ── Page-specific additions ── */

.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;
}

.min-h-\[50vh\] {
  min-height: 50vh;
}

.min-h-\[60vh\] {
  min-height: 60vh;
}

.min-h-\[70vh\] {
  min-height: 70vh;
}

/* Services page */
.service-subhead {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.5rem, 3vw, 2rem);
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 1rem;
  color: inherit;
}

.highlight-box {
  background-color: var(--near-white);
  padding: 2rem;
  border-left: 4px solid var(--accent-magenta);
}

.service-block {
  position: relative;
  background-color: var(--black-soft);
  border: 1px solid var(--near-white-10);
  overflow: hidden;
}

.service-block img {
  width: 100%;
  height: 280px;
  object-fit: cover;
  filter: grayscale(100%);
  transition: transform var(--transition-slow), filter var(--transition-medium);
}

.service-block:hover img {
  transform: scale(1.05);
  filter: grayscale(0%);
}

.service-block-content {
  padding: 2rem;
}

.service-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.service-list li {
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  padding: 0.5rem 1rem;
  border: 1px solid var(--near-white-30);
  color: var(--near-white);
}

.process-step {
  border-top: 1px solid currentColor;
  padding-top: 1.5rem;
}

.process-number {
  display: block;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.875rem;
  color: var(--accent-magenta);
  margin-bottom: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

/* About page */
.fact-box {
  background-color: var(--near-white);
  color: var(--base-purple);
  padding: 2rem;
  height: 100%;
}

.fact-list {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.fact-item dt {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--accent-magenta);
  margin-bottom: 0.25rem;
}

.fact-item dd {
  font-size: 1rem;
  line-height: 1.5;
  margin: 0;
  opacity: 0.85;
}

.team-role {
  border-top: 1px solid rgba(26, 26, 46, 0.15);
  padding-top: 1.5rem;
}

.role-label {
  display: block;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--accent-magenta);
  margin-bottom: 1rem;
}

.aloott-card {
  background-color: rgba(245, 240, 235, 0.08);
  border: 1px solid var(--near-white-10);
  padding: 2rem;
}

.aloott-badge {
  width: 4rem;
  height: 4rem;
  background-color: #AD255F;
  border-radius: 0.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.aloott-badge span {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 2rem;
  color: #fff;
}

.value-card {
  border-top: 1px solid rgba(26, 26, 46, 0.15);
  padding-top: 1.5rem;
}

.value-number {
  display: block;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.875rem;
  color: var(--accent-magenta);
  margin-bottom: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.office-details {
  font-size: 1.125rem;
  line-height: 1.7;
  opacity: 0.85;
}

.office-map {
  height: 100%;
  min-height: 400px;
  overflow: hidden;
}

.office-map img,
.office-map-full img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.office-map-full {
  width: 100%;
  height: 500px;
  overflow: hidden;
}

/* Contact page */
.contact-form {
  max-width: 100%;
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-group label {
  display: block;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--near-white);
  margin-bottom: 0.75rem;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  background-color: rgba(245, 240, 235, 0.06);
  border: 1px solid var(--near-white-30);
  color: var(--near-white);
  padding: 1rem 1.25rem;
  font-family: var(--font-body);
  font-size: 1rem;
  transition: border-color var(--transition-fast), background-color var(--transition-fast);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--near-white-60);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--accent-magenta);
  background-color: rgba(245, 240, 235, 0.1);
}

.form-group select {
  appearance: none;
  cursor: pointer;
}

.form-group select option {
  background-color: var(--base-purple);
  color: var(--near-white);
}

.form-note {
  font-size: 0.875rem;
  opacity: 0.7;
  margin-bottom: 1.5rem;
}

.text-link {
  color: var(--accent-magenta);
  text-decoration: underline;
  transition: color var(--transition-fast);
}

.text-link:hover,
.text-link:focus {
  color: var(--accent-magenta-hover);
}

.social-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.social-list li {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--base-purple);
}

.faq-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.faq-item {
  border: 1px solid var(--near-white-10);
  padding: 1.5rem;
}

.faq-item summary {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.125rem;
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary::after {
  content: '+';
  font-size: 1.5rem;
  color: var(--accent-magenta);
  flex-shrink: 0;
}

.faq-item[open] summary::after {
  content: '−';
}

.faq-item p {
  margin-top: 1rem;
  opacity: 0.7;
  line-height: 1.7;
}

/* aloott page helpers */
.local-feature {
  border-top: 1px solid rgba(26, 26, 46, 0.15);
  padding-top: 1.5rem;
}

/* ── Reduced motion ── */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}

/* ── Hero photo: show on mobile ────────────────────────────────────────────
   The hero image column used to be `hidden lg:block`, so the Hong Kong scene
   was invisible below 1024px — every phone and tablet, plus Android Chrome's
   desktop mode which reports a ~980px viewport. Show it at all widths.
   .swiss-grid is a plain 12-col grid with no own breakpoints, so below 1024px
   the column is forced to full width here. */
@media (max-width: 1023px) {
  .hero-photo-col,
  .aloott-visual-col {
    grid-column: span 12 / span 12;
    margin-top: 2.5rem;
    overflow: hidden;          /* Prevent background glow overflow */
  }

  .hero-photo {
    height: 320px !important;
  }
}