/* ==========================================================================
   Sentosa Corporate — Complete Stylesheet

   TABLE OF CONTENTS
   1. Fonts
   2. Design Tokens (CSS Variables)
   3. Reset & Base
   4. Layout & Grid
   5. Header & Mobile Nav
   6. Side Navigation
   7. Hero Section
   8. Video Section
   9. Content Sections
   10. Parallax CTA
   11. Contact Section & Form
   12. Map
   13. Social Icons
   14. Awards
   15. Footer
   16. Scroll Indicator
   17. Responsive
   ========================================================================== */

/* ==========================================================================
   1. FONTS
   ========================================================================== */
@font-face {
  font-family: 'Lato';
  font-style: normal;
  font-weight: 300;
  font-display: swap;
  src: url('../fonts/lato-light.woff2') format('woff2');
}
@font-face {
  font-family: 'Lato';
  font-style: normal;
  font-weight: 700;
  font-display: swap;
  src: url('../fonts/lato-bold.woff2') format('woff2');
}
@font-face {
  font-family: 'Lato';
  font-style: italic;
  font-weight: 300;
  font-display: swap;
  src: url('../fonts/lato-light-italic.woff2') format('woff2');
}
@font-face {
  font-family: 'Lato';
  font-style: italic;
  font-weight: 700;
  font-display: swap;
  src: url('../fonts/lato-bold-italic.woff2') format('woff2');
}
@font-face {
  font-family: 'Playfair Display';
  font-style: normal;
  font-weight: 400 700;
  font-display: swap;
  src: url('../fonts/playfair-regular.woff2') format('woff2');
}
@font-face {
  font-family: 'Rubik';
  font-style: normal;
  font-weight: 300;
  font-display: swap;
  src: url('../fonts/rubik-light.woff2') format('woff2');
}
@font-face {
  font-family: 'Rubik';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url('../fonts/rubik-regular.woff2') format('woff2');
}

/* ==========================================================================
   2. DESIGN TOKENS
   ========================================================================== */
:root {
  --font-heading:  'Playfair Display', Georgia, 'Times New Roman', serif;
  --font-body:     'Lato', 'Helvetica Neue', Helvetica, Arial, sans-serif;
  --font-accent:   'Rubik', 'Helvetica Neue', Helvetica, Arial, sans-serif;
  --font-ui:       Arial, Helvetica, sans-serif;

  --fw-light:   300;
  --fw-regular: 400;
  --fw-bold:    700;

  --color-bg:           #fff;
  --color-text:         rgba(0, 0, 0, 0.85);
  --color-heading:      rgba(0, 0, 0, 0.85);
  --color-text-muted:   rgba(0, 0, 0, 0.5);
  --color-link:         rgba(0, 0, 0, 0.85);
  --color-link-accent:  #f40009;

  --color-btn-bg:       #272727;
  --color-btn-text:     #fff;

  --color-input-bg:     #fafafa;
  --color-input-border: #ccc;

  --space-xs:  0.5rem;
  --space-sm:  1rem;
  --space-md:  2rem;
  --space-lg:  4rem;
  --space-xl:  6rem;

  --container-max: 1200px;
  --transition:    0.3s ease;
}

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-heading);
  font-weight: var(--fw-regular);
  font-size: 16px;
  line-height: 1.8em;
  color: var(--color-text);
  background: var(--color-bg);
  overflow-x: hidden;
}

h1 {
  font-family: var(--font-heading);
  font-weight: var(--fw-regular);
  font-size: 66px;
  line-height: 1.2em;
  letter-spacing: 0;
  color: var(--color-heading);
  margin-bottom: 0.3em;
}

h2 {
  font-family: var(--font-accent);
  font-weight: var(--fw-light);
  font-size: 14px;
  line-height: 1.4em;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--color-heading);
  margin-bottom: 0.4em;
}

h3 {
  font-family: var(--font-body);
  font-weight: var(--fw-light);
  font-size: 22px;
  line-height: 1.2em;
  letter-spacing: 0;
  color: #f40009;
  margin-bottom: 0.3em;
}

p {
  font-family: var(--font-heading);
  font-weight: var(--fw-regular);
  font-size: 16px;
  line-height: 1.8em;
}

strong { font-weight: var(--fw-bold); }

a {
  color: var(--color-link);
  text-decoration: none;
  transition: opacity var(--transition);
}
a:hover { opacity: 0.7; }

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

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

/* ==========================================================================
   4. LAYOUT & GRID
   ========================================================================== */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 1.5em;
}

.section {
  position: relative;
  width: 100%;
}

.section__inner {
  padding: 5vw 8vw;
}

.grid {
  display: grid;
  gap: var(--space-md);
}
.grid--2    { grid-template-columns: 1fr 1fr; }
.grid--3    { grid-template-columns: repeat(3, 1fr); }
.grid--5-7  { grid-template-columns: 5fr 7fr; }
.grid--7-5  { grid-template-columns: 7fr 5fr; }

.grid__item--vcenter {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.aspect-ratio {
  position: relative;
  overflow: hidden;
}
.aspect-ratio img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.spacer      { height: var(--space-md); }
.spacer--lg  { height: var(--space-lg); }
.spacer--xl  { height: var(--space-xl); }

/* ==========================================================================
   5. HEADER & MOBILE NAV
   ========================================================================== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 200;
  background: transparent;
}
.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 50px;
  padding: 0 1.2em;
}
.header__logo img { height: 36px; width: auto; }
.header__menu-btn {
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  color: #fff;
}
.header__menu-btn svg { width: 24px; height: 18px; }

.mobile-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.92);
  z-index: 300;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition), visibility var(--transition);
}
.mobile-overlay.is-active { opacity: 1; visibility: visible; }

.mobile-overlay__close {
  position: absolute;
  top: 1em;
  right: 1.2em;
  background: none;
  border: none;
  color: #fff;
  cursor: pointer;
  padding: 8px;
}
.mobile-overlay__close svg { width: 20px; height: 20px; }

.mobile-overlay__nav {
  list-style: none;
  text-align: center;
}
.mobile-overlay__nav a {
  display: block;
  padding: 0.8em;
  color: #fff;
  font-family: var(--font-accent);
  font-size: 36px;
  font-weight: var(--fw-light);
  line-height: 1em;
  letter-spacing: 0;
  text-transform: none;
}

/* ==========================================================================
   6. SIDE NAVIGATION (desktop dot nav)
   ========================================================================== */
.side-nav {
  position: fixed;
  right: 2em;
  top: 50%;
  transform: translateY(-50%);
  z-index: 100;
  list-style: none;
}
.side-nav__item {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  margin: 1em 0;
  text-decoration: none;
}
.side-nav__dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: rgba(255,255,255,0.4);
  border: 1px solid rgba(255,255,255,0.7);
  transition: background var(--transition);
  flex-shrink: 0;
}
.side-nav__item.is-active .side-nav__dot,
.side-nav__item:hover .side-nav__dot {
  background: #fff;
}
.side-nav__label {
  font-family: var(--font-ui);
  font-size: 12px;
  font-weight: var(--fw-regular);
  letter-spacing: 0;
  text-transform: uppercase;
  color: rgba(255,255,255,0.7);
  margin-right: 1em;
  opacity: 0;
  transform: translateX(8px);
  transition: opacity var(--transition), transform var(--transition);
  white-space: nowrap;
}
.side-nav__item:hover .side-nav__label {
  opacity: 1;
  transform: translateX(0);
}

/* ==========================================================================
   7. HERO SECTION
   ========================================================================== */
.section--hero {
  min-height: 80vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  padding: 3em 1.5em;
  color: #fff;
}
.section--hero h1 { color: #fff; }

/* ==========================================================================
   8. VIDEO SECTION
   ========================================================================== */
.section--video {
  position: relative;
  overflow: hidden;
  min-height: 60vh;
}
.video-bg {
  position: absolute;
  inset: 0;
}
.video-bg__iframe {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 100vw;
  height: 56.25vw;
  min-height: 100%;
  min-width: 177.78vh;
  transform: translate(-50%, -50%);
  border: 0;
  pointer-events: none;
}
.video-bg__cover {
  position: absolute;
  bottom: 0;
  right: 0;
  width: 140px;
  height: 100px;
  background: linear-gradient(135deg, transparent 30%, rgba(0,0,0,0.4) 30%);
  pointer-events: none;
  z-index: 2;
}

/* ==========================================================================
   9. CONTENT SECTIONS (about)
   ========================================================================== */
/* No extra rules needed — handled by grid + text-center + spacing */

/* ==========================================================================
   10. PARALLAX CTA
   ========================================================================== */
.section--parallax {
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  background-attachment: fixed;
  padding: 8rem 1.5em;
  color: #fff;
}
.section--parallax h1,
.section--parallax h3 { color: #fff; }

/* ==========================================================================
   11. CONTACT SECTION & FORM
   ========================================================================== */
.form__group { margin-bottom: 18px; }
.form__label {
  display: block;
  font-family: var(--font-heading);
  font-size: 16px;
  font-weight: var(--fw-regular);
  line-height: 1.8em;
  letter-spacing: 0;
  text-transform: none;
  margin-bottom: 4px;
  color: var(--color-text);
}
.form__label .required {
  font-size: 14px;
  color: var(--color-text-muted);
  margin-left: 4px;
}
.form__row {
  display: flex;
  gap: 10px;
}
.form__row > .form__group { flex: 1; }

.form__input,
.form__textarea {
  width: 100%;
  padding: 12px;
  font-family: sans-serif;
  font-size: 12px;
  font-weight: var(--fw-regular);
  line-height: normal;
  color: #000;
  background: var(--color-input-bg);
  border: 1px solid var(--color-input-border);
  border-radius: 2px;
  transition: background 0.15s ease;
}
.form__input:focus,
.form__textarea:focus {
  background: #fff;
  outline: none;
}
.form__input::placeholder,
.form__textarea::placeholder {
  color: #cfcfcf;
}
.form__textarea {
  min-height: 150px;
  resize: vertical;
}

/* Form status messages */
.form-status--success {
  background: #e8f5e9;
  color: #2e7d32;
  padding: 12px 16px;
  border-radius: 2px;
  margin-bottom: 18px;
  font-family: var(--font-body);
  font-size: 15px;
}
.form-status--error {
  background: #fce4ec;
  color: #c62828;
  padding: 12px 16px;
  border-radius: 2px;
  margin-bottom: 18px;
  font-family: var(--font-body);
  font-size: 15px;
}

.btn {
  display: inline-block;
  padding: 1em 2.5em;
  font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
  font-size: 14px;
  font-weight: var(--fw-regular);
  font-style: normal;
  line-height: 1em;
  letter-spacing: 0;
  text-align: center;
  color: var(--color-btn-text);
  background: var(--color-btn-bg);
  border: 0;
  cursor: pointer;
  -webkit-appearance: none;
  appearance: none;
  transition: opacity var(--transition);
}
.btn:hover { opacity: 0.85; }

/* ==========================================================================
   12. MAP
   ========================================================================== */
.map {
  position: relative;
  width: 100%;
  padding-bottom: 51.43%;
  overflow: hidden;
}
.map__iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

/* ==========================================================================
   13. SOCIAL ICONS
   ========================================================================== */
.social-icons {
  display: flex;
  justify-content: center;
  gap: 10px;
}
.social-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  color: var(--color-heading);
  transition: opacity var(--transition);
}
.social-icon:hover { opacity: 0.6; }
.social-icon svg { width: 100%; height: 100%; }

.social-icons--lg .social-icon {
  width: 48px;
  height: 48px;
  border: 2px solid currentColor;
  padding: 6px;
}

/* ==========================================================================
   14. AWARDS
   ========================================================================== */
.award { text-align: center; padding: 0 var(--space-sm); }
.award__image {
  max-width: 200px;
  margin: 0 auto var(--space-sm);
}
.award__title {
  font-family: var(--font-heading);
  font-weight: var(--fw-regular);
  font-size: 36px;
  line-height: 1.2em;
  letter-spacing: 0;
  text-transform: none;
  margin-bottom: 0.5em;
}
.award__desc {
  font-family: var(--font-heading);
  font-size: 16px;
  line-height: 1.8em;
  color: var(--color-text);
}

/* ==========================================================================
   15. FOOTER
   ========================================================================== */
.footer {
  padding: var(--space-lg) 1.5em var(--space-md);
  text-align: center;
}
.footer__social { margin-bottom: var(--space-md); }
.footer__nav { margin-bottom: var(--space-md); }
.footer__nav a {
  display: inline-block;
  padding: 0.4em 1em;
  font-family: var(--font-accent);
  font-size: 12px;
  font-weight: var(--fw-regular);
  letter-spacing: 0.2em;
  line-height: 2em;
  text-transform: uppercase;
  color: var(--color-text);
}
.footer__copy {
  font-family: var(--font-heading);
  font-size: 16px;
  line-height: 1.8em;
  color: var(--color-text-muted);
}

/* ==========================================================================
   16. SCROLL INDICATOR
   ========================================================================== */
.scroll-indicator {
  position: absolute;
  bottom: 2em;
  left: 50%;
  transform: translateX(-50%);
  text-align: center;
  color: #fff;
  cursor: pointer;
  z-index: 1;
}
.scroll-indicator__text {
  font-family: var(--font-ui);
  font-size: 12px;
  font-weight: var(--fw-regular);
  letter-spacing: 0;
  text-transform: uppercase;
  margin-bottom: 0.5em;
}
.scroll-indicator__arrow {
  width: 30px;
  height: 12px;
  display: block;
  margin: 0 auto 0.5em;
}
.scroll-indicator__line {
  width: 1px;
  height: 40px;
  background: rgba(255,255,255,0.6);
  margin: 0 auto;
}

/* ==========================================================================
   17. RESPONSIVE
   ========================================================================== */
@media (min-width: 768px) {
  .header { display: none; }
  .mobile-overlay { display: none; }
}

@media (max-width: 767px) {
  h1 { font-size: 32px; }
  h3 { font-size: 18px; }

  .grid--2,
  .grid--3,
  .grid--5-7,
  .grid--7-5 { grid-template-columns: 1fr; }

  .side-nav { display: none; }
  .section--hero { min-height: 80vh; }
  .section--parallax { background-attachment: scroll; padding: 4rem 1.5em; }
  .section__inner { padding: var(--space-lg) 1.5em; }
  .form__row { flex-direction: column; gap: 0; }
  .social-icons--lg .social-icon { width: 40px; height: 40px; }
}