/* ==========================================================================
   BANGSAR.COM · Coming Soon
   Warm off-white palette · champagne gold accent · editorial serif
   Matches residences.com aesthetic.
   ========================================================================== */

:root {
  /* Type scale */
  --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
  --text-sm: clamp(0.875rem, 0.8rem + 0.35vw, 1rem);
  --text-base: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
  --text-lg: clamp(1.125rem, 1rem + 0.75vw, 1.5rem);
  --text-xl: clamp(1.5rem, 1.2rem + 1.25vw, 2.25rem);
  --text-2xl: clamp(2rem, 1.2rem + 2.5vw, 3.5rem);
  --text-3xl: clamp(2.5rem, 1rem + 4vw, 5rem);
  --text-hero: clamp(3rem, 1rem + 6.5vw, 7.5rem);

  /* Spacing */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --space-32: 8rem;

  /* Content widths */
  --content-narrow: 640px;
  --content-default: 960px;
  --content-wide: 1240px;

  /* Radius */
  --radius-sm: 2px;
  --radius-md: 4px;
  --radius-full: 9999px;

  /* Motion */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --transition-interactive: 240ms var(--ease-out);

  /* Fonts */
  --font-display: 'Cormorant Garamond', 'Times New Roman', serif;
  --font-body: 'Inter', 'Helvetica Neue', sans-serif;
}

/* ---------- LIGHT (default) ---------- */
:root,
[data-theme='light'] {
  --color-bg: #faf8f4;               /* warm off-white */
  --color-surface: #f4efe5;          /* soft ivory */
  --color-surface-2: #ede6d6;        /* deeper ivory */
  --color-text: #1a1a1a;             /* deep charcoal */
  --color-text-muted: #6f6a5f;       /* warm taupe */
  --color-text-faint: #b8b0a0;
  --color-accent: #a58652;           /* champagne gold */
  --color-accent-soft: #b89a68;
  --color-border: rgba(26, 26, 26, 0.12);
  --color-divider: rgba(26, 26, 26, 0.08);
  --color-scrim: rgba(26, 20, 12, 0.35);
}

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

html {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
  scroll-padding-top: var(--space-16);
}

body {
  min-height: 100dvh;
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.7;
  color: var(--color-text);
  background: var(--color-bg);
  font-weight: 300;
  overflow-x: hidden;
}

img,
picture,
video,
svg {
  display: block;
  max-width: 100%;
  height: auto;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 400;
  line-height: 1.05;
  letter-spacing: -0.01em;
  text-wrap: balance;
  color: var(--color-text);
}

em {
  font-style: italic;
  color: var(--color-accent);
}

p {
  text-wrap: pretty;
  max-width: 62ch;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-interactive), opacity var(--transition-interactive);
}

button,
input {
  font: inherit;
  color: inherit;
}

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

:focus-visible {
  outline: 1px solid var(--color-accent);
  outline-offset: 4px;
  border-radius: var(--radius-sm);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

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

/* ==========================================================================
   REVEAL ANIMATION
   ========================================================================== */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition:
    opacity 1200ms var(--ease-out),
    transform 1200ms var(--ease-out);
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}
.hero__content .reveal:nth-child(2) { transition-delay: 120ms; }
.hero__content .reveal:nth-child(3) { transition-delay: 240ms; }
.hero__content .reveal:nth-child(4) { transition-delay: 360ms; }
.hero__content .reveal:nth-child(5) { transition-delay: 480ms; }

/* ==========================================================================
   EYEBROW
   ========================================================================== */
.eyebrow {
  display: inline-block;
  font-family: var(--font-body);
  font-size: var(--text-xs);
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--color-accent);
  font-weight: 400;
  margin-bottom: var(--space-6);
}

/* ==========================================================================
   HEADER
   ========================================================================== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  padding: var(--space-6) 0;
  background: linear-gradient(to bottom, rgba(250, 248, 244, 0.65), rgba(250, 248, 244, 0));
  transition: background var(--transition-interactive), padding var(--transition-interactive), border-color var(--transition-interactive);
  border-bottom: 1px solid transparent;
}
.site-header.is-scrolled {
  background: rgba(250, 248, 244, 0.92);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  padding: var(--space-4) 0;
  border-bottom-color: var(--color-divider);
}

/* When hero is in view, header text is light over the image scrim */
.site-header:not(.is-scrolled) .wordmark,
.site-header:not(.is-scrolled) .nav-item {
  color: #f9f4e8;
}
.site-header:not(.is-scrolled) .wordmark svg {
  color: #d9b775;
}
.site-header.is-scrolled .wordmark { color: var(--color-text); }
.site-header.is-scrolled .wordmark svg { color: var(--color-accent); }
.site-header.is-scrolled .nav-item { color: var(--color-text-muted); }

.site-header__inner {
  max-width: var(--content-wide);
  margin: 0 auto;
  padding: 0 var(--space-8);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}
.wordmark {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  transition: color var(--transition-interactive);
}
.wordmark:hover { color: var(--color-accent); }
.wordmark__text {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  letter-spacing: 0.02em;
  font-weight: 400;
  font-style: italic;
}
.site-header__nav {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}
.nav-item {
  font-size: var(--text-xs);
  letter-spacing: 0.22em;
  text-transform: uppercase;
  transition: color var(--transition-interactive);
}
.nav-item--dot { opacity: 0.5; }

@media (max-width: 640px) {
  .site-header__nav .nav-item:not(:last-child):not(.nav-item--dot),
  .site-header__nav .nav-item--dot { display: none; }
}

/* ==========================================================================
   HERO
   ========================================================================== */
.hero {
  position: relative;
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: var(--color-bg);
}
.hero__media {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.hero__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  animation: heroBreathe 24s ease-in-out infinite alternate;
}
@keyframes heroBreathe {
  from { transform: scale(1.02); }
  to   { transform: scale(1.08); }
}
/* A softer, warmer scrim — the image is dark, so text reads white; but overall page is light */
.hero__scrim {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(to right, rgba(20, 15, 8, 0.62) 0%, rgba(20, 15, 8, 0.28) 55%, rgba(20, 15, 8, 0.12) 100%),
    linear-gradient(to top, rgba(20, 15, 8, 0.72) 0%, rgba(20, 15, 8, 0.05) 55%);
}
.hero__content {
  position: relative;
  z-index: 1;
  max-width: var(--content-wide);
  margin: 0 auto;
  padding: var(--space-32) var(--space-8) var(--space-24);
  width: 100%;
  color: #f9f4e8;                     /* hero text sits on cinematic photo */
}
.hero__content .eyebrow {
  color: #d9b775;
}
.hero__title {
  font-size: var(--text-hero);
  font-weight: 300;
  line-height: 0.95;
  letter-spacing: -0.015em;
  margin-bottom: var(--space-8);
  max-width: 14ch;
  color: #f9f4e8;
}
.hero__title-line { display: block; }
.hero__title-line--italic {
  font-style: italic;
}
.hero__title em {
  font-style: italic;
  color: #d9b775;
}
.hero__lede {
  font-family: var(--font-display);
  font-style: italic;
  font-size: var(--text-lg);
  line-height: 1.55;
  color: #f9f4e8;
  max-width: 46ch;
  margin-bottom: var(--space-12);
  font-weight: 300;
}
.hero__meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-6);
  padding-top: var(--space-6);
  border-top: 1px solid rgba(249, 244, 232, 0.28);
  max-width: 640px;
}

/* Single italic tagline in the hero (replaces the three-fact strip) */
.hero__tagline {
  display: inline-flex;
  align-items: center;
  gap: var(--space-6);
  max-width: none;
  margin-top: var(--space-4);
}
.hero__tagline-rule {
  display: inline-block;
  width: clamp(48px, 6vw, 96px);
  height: 1px;
  background: rgba(249, 244, 232, 0.5);
  flex-shrink: 0;
}
.hero__tagline-text {
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 300;
  font-size: var(--text-lg);
  color: #f9f4e8;
  letter-spacing: 0.01em;
}
@media (max-width: 640px) {
  .hero__tagline { gap: var(--space-4); }
  .hero__tagline-rule { width: 36px; }
}
.hero__meta-item {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.hero__meta-label {
  font-size: var(--text-xs);
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: rgba(249, 244, 232, 0.7);
}
.hero__meta-value {
  font-family: var(--font-display);
  font-size: var(--text-base);
  color: #f9f4e8;
  font-style: italic;
}
.hero__divider {
  width: 1px;
  height: 24px;
  background: rgba(249, 244, 232, 0.22);
}
.hero__scroll {
  position: absolute;
  bottom: var(--space-10);
  left: 50%;
  transform: translateX(-50%);
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--text-xs);
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: rgba(249, 244, 232, 0.72);
  padding: var(--space-2) var(--space-4);
  animation: floatY 3s ease-in-out infinite alternate;
}
.hero__scroll:hover { color: #d9b775; }
.hero__scroll svg { color: #d9b775; }
@keyframes floatY {
  from { transform: translate(-50%, 0); }
  to   { transform: translate(-50%, 8px); }
}

@media (max-width: 640px) {
  .hero__content { padding-inline: var(--space-6); }
  .hero__meta { gap: var(--space-4); }
  .hero__divider { display: none; }
  .hero__scroll { bottom: var(--space-6); }
}

/* ==========================================================================
   EDITORIAL SPLIT (Neighbourhood)
   Off-white section — the heart of the residences aesthetic
   ========================================================================== */
.editorial {
  padding: clamp(var(--space-20), 12vw, var(--space-32)) var(--space-8);
  background: var(--color-bg);
}
.editorial__inner {
  max-width: var(--content-wide);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(var(--space-12), 8vw, var(--space-32));
  align-items: center;
}
.editorial__col--text {
  padding-inline: clamp(0px, 3vw, var(--space-10));
}
.editorial__title {
  font-size: var(--text-2xl);
  margin-bottom: var(--space-10);
  font-weight: 300;
  color: var(--color-text);
}
.editorial__body {
  color: var(--color-text-muted);
  line-height: 1.8;
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
  font-size: var(--text-base);
}
.editorial__col--image figcaption {
  font-family: var(--font-display);
  font-style: italic;
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin-top: var(--space-4);
  text-align: right;
}
.editorial__col--image img {
  width: 100%;
  border-radius: var(--radius-sm);
}

@media (max-width: 900px) {
  .editorial__inner { grid-template-columns: 1fr; }
  .editorial__col--text { padding-inline: 0; }
}

/* ==========================================================================
   FEATURE (full-bleed image + floating caption)
   ========================================================================== */
.feature {
  position: relative;
  padding: clamp(var(--space-16), 8vw, var(--space-24)) 0;
  background: var(--color-bg);
}
.feature__image {
  width: 100%;
  aspect-ratio: 21 / 9;
  overflow: hidden;
}
.feature__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.feature__caption {
  max-width: var(--content-wide);
  margin: 0 auto;
  padding: var(--space-10) var(--space-8) 0;
  max-width: 52ch;
}
.feature__caption--right {
  margin-left: auto;
  margin-right: 0;
  padding-right: clamp(var(--space-8), 8vw, var(--space-24));
}
.feature__caption-text {
  font-family: var(--font-display);
  font-style: italic;
  font-size: var(--text-lg);
  color: var(--color-text);
  line-height: 1.55;
  font-weight: 300;
}

/* ==========================================================================
   PROMISE (What is to come)
   Soft ivory panel — a moment of tonal shift, still light
   ========================================================================== */
.promise {
  padding: clamp(var(--space-24), 14vw, var(--space-32)) var(--space-8);
  background: var(--color-surface);
  border-top: 1px solid var(--color-divider);
  border-bottom: 1px solid var(--color-divider);
}
.promise__inner {
  max-width: var(--content-default);
  margin: 0 auto;
  text-align: center;
}
.promise__title {
  font-size: var(--text-2xl);
  margin-bottom: var(--space-16);
  max-width: 20ch;
  margin-inline: auto;
  font-weight: 300;
}
.promise__list {
  list-style: none;
  text-align: left;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-12) var(--space-16);
  margin-top: var(--space-12);
}
.promise__item {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--space-6);
  padding-top: var(--space-6);
  border-top: 1px solid var(--color-border);
}
.promise__num {
  font-family: var(--font-display);
  font-style: italic;
  font-size: var(--text-lg);
  color: var(--color-accent);
  min-width: 2ch;
}
.promise__item-title {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 400;
  margin-bottom: var(--space-3);
  color: var(--color-text);
}
.promise__item p {
  color: var(--color-text-muted);
  font-size: var(--text-sm);
  line-height: 1.7;
}

@media (max-width: 720px) {
  .promise__list { grid-template-columns: 1fr; gap: var(--space-10); }
}

/* ==========================================================================
   INVITATION / FORM
   ========================================================================== */
.invitation {
  padding: clamp(var(--space-24), 14vw, var(--space-32)) var(--space-8);
  text-align: center;
  background: var(--color-bg);
}
.invitation__inner {
  max-width: 640px;
  margin: 0 auto;
}
.invitation__title {
  font-size: var(--text-2xl);
  margin-bottom: var(--space-8);
  font-weight: 300;
}
.invitation__lede {
  color: var(--color-text-muted);
  margin: 0 auto var(--space-12);
  max-width: 46ch;
  font-size: var(--text-base);
}
.invitation__form {
  display: flex;
  gap: var(--space-3);
  padding: var(--space-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  background: #ffffff;
  max-width: 520px;
  margin: 0 auto;
  transition: border-color var(--transition-interactive), box-shadow var(--transition-interactive);
  box-shadow: 0 1px 2px rgba(26, 26, 26, 0.03);
}
.invitation__form:focus-within {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(165, 134, 82, 0.12);
}
.invitation__form input {
  flex: 1;
  padding: var(--space-3) var(--space-6);
  background: transparent;
  border: none;
  outline: none;
  color: var(--color-text);
  font-size: var(--text-sm);
  letter-spacing: 0.01em;
  min-width: 0;
}
.invitation__form input::placeholder {
  color: var(--color-text-faint);
  font-style: italic;
  font-family: var(--font-display);
  font-size: var(--text-base);
}
.invitation__form button {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-6);
  background: var(--color-text);
  color: var(--color-bg);
  border: none;
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  letter-spacing: 0.24em;
  text-transform: uppercase;
  cursor: pointer;
  font-weight: 500;
  white-space: nowrap;
}
.invitation__form button:hover {
  background: var(--color-accent);
}
.invitation__form button:disabled {
  opacity: 0.5;
  cursor: default;
}
.invitation__note {
  margin-top: var(--space-6);
  font-size: var(--text-xs);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-text-faint);
}
.invitation__note--success { color: var(--color-accent); }
.invitation__note--error { color: #c4573a; }

@media (max-width: 560px) {
  .invitation__form {
    flex-direction: column;
    border-radius: var(--radius-sm);
    padding: var(--space-4);
    gap: var(--space-4);
  }
  .invitation__form input {
    padding: var(--space-3) var(--space-2);
    text-align: center;
  }
  .invitation__form button {
    justify-content: center;
    padding-block: var(--space-4);
  }
}

/* ==========================================================================
   FOOTER
   ========================================================================== */
.site-footer {
  padding: var(--space-16) var(--space-8);
  border-top: 1px solid var(--color-divider);
  background: var(--color-bg);
}
.site-footer__inner {
  max-width: var(--content-wide);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
  flex-wrap: wrap;
}
.site-footer__brand {
  display: flex;
  align-items: baseline;
  gap: var(--space-4);
}
.site-footer__tag {
  font-size: var(--text-xs);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}
.site-footer__meta {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--text-xs);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-text-faint);
}
.site-footer__dot { opacity: 0.5; }

@media (max-width: 640px) {
  .site-footer__inner { flex-direction: column; align-items: flex-start; }
  .site-footer__brand { flex-direction: column; gap: var(--space-2); align-items: flex-start; }
}