/* =========================================
   Zyzy.id — FULL FINAL PRO 3.0
   Elegant Futuristic Design System
   Premium • Responsive • Accessible
========================================= */

/* =========================================
   1. DESIGN TOKENS
========================================= */

:root {
  /* CORE COLORS */
  --background: #f7f8fa;
  --white: #ffffff;
  --black: #111827;
  --dark: #172033;
  --gray: #687386;
  --light-gray: #e6eaf0;

  /* ELECTRIC BLUE */
  --accent: #2864e8;
  --accent-dark: #194fc5;
  --accent-light: #83aaff;
  --accent-soft: #eaf1ff;

  /* SURFACES */
  --surface: #ffffff;
  --surface-warm: #f0f3f8;
  --surface-muted: #e9eef6;
  --surface-dark: #111827;

  /* TYPOGRAPHY */
  --font-heading: "Manrope", sans-serif;
  --font-body: "DM Sans", sans-serif;

  /* LAYOUT */
  --container: 1180px;
  --page-gutter: clamp(20px, 5vw, 40px);

  /* RADIUS */
  --radius-small: 4px;
  --radius-medium: 8px;
  --radius-large: 14px;

  /* SHADOWS */
  --shadow-soft: 0 12px 35px rgba(17, 24, 39, .045);
  --shadow-medium: 0 22px 55px rgba(17, 24, 39, .09);
  --shadow-blue: 0 14px 35px rgba(40, 100, 232, .15);

  /* MOTION */
  --ease: cubic-bezier(.2, .7, .2, 1);
  --transition: .4s var(--ease);
  --transition-fast: .25s var(--ease);

  /* HEADER */
  --header-height: 92px;
  --header-height-scrolled: 74px;
}

/* =========================================
   2. RESET & BASE
========================================= */

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 100px;
  -webkit-text-size-adjust: 100%;
}

body {
  min-width: 320px;
  background: var(--background);
  color: var(--black);
  font-family: var(--font-body);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body.menu-open {
  overflow: hidden;
  overscroll-behavior: none;
}

a {
  color: inherit;
  text-decoration: none;
  -webkit-tap-highlight-color: transparent;
}

button {
  font: inherit;
  color: inherit;
  -webkit-tap-highlight-color: transparent;
}

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

button,
a {
  touch-action: manipulation;
}

.container {
  width: min(100% - 80px, var(--container));
  margin-inline: auto;
}

.section-space {
  padding: clamp(85px, 10vw, 125px) 0;
}

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

:focus {
  outline: none;
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 5px;
}

button:disabled {
  cursor: not-allowed;
  opacity: .55;
}

.image-error {
  opacity: .5;
}

/* =========================================
   3. PAGE LOADER
========================================= */

.page-loader {
  position: fixed;
  inset: 0;
  z-index: 9999;

  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;

  background: var(--background);

  transition:
    opacity .7s ease,
    visibility .7s ease;
}

.page-loader.loaded {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.loader-brand {
  font-family: var(--font-heading);
  font-size: 27px;
  font-weight: 800;
  letter-spacing: -1.5px;
}

.loader-brand::first-letter {
  color: var(--accent);
}

.loader-line {
  width: 105px;
  height: 2px;
  margin-top: 20px;
  overflow: hidden;
  background: #dce3ef;
}

.loader-line span {
  display: block;
  width: 45%;
  height: 100%;
  background: var(--accent);
  animation: loaderProgress 1.2s ease-in-out infinite;
}

@keyframes loaderProgress {
  from {
    transform: translateX(-110%);
  }

  to {
    transform: translateX(240%);
  }
}

/* =========================================
   4. HEADER — PREMIUM NAVIGATION
========================================= */

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 1000;

  background: transparent;

  transition:
    background var(--transition),
    box-shadow var(--transition),
    backdrop-filter var(--transition);
}

.header-inner {
  min-height: var(--header-height);

  display: flex;
  align-items: center;
  justify-content: space-between;

  transition: min-height var(--transition);
}

/* BRAND */

.brand,
.footer-logo {
  font-family: var(--font-heading);
  font-size: 27px;
  font-weight: 800;
  letter-spacing: -1.6px;
}

.brand {
  flex-shrink: 0;
  color: var(--black);

  transition:
    color var(--transition),
    opacity var(--transition);
}

.brand span,
.footer-logo span {
  color: var(--accent);
}

.brand:hover {
  opacity: .78;
}

/* HEADER RIGHT */

.header-right {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 34px;
  min-width: 0;
}

/* NAVIGATION — HORIZONTAL */

.navigation {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 32px;
}

.nav-link {
  position: relative;

  color: #566174;
  font-size: 12px;
  font-weight: 600;
  white-space: nowrap;

  transition: color var(--transition);
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -8px;

  width: 0;
  height: 2px;

  background: var(--accent);
  border-radius: 10px;

  transition: width var(--transition);
}

.nav-link:hover,
.nav-link.active {
  color: var(--accent);
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

/* HEADER ACTION */

.header-action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 17px;

  min-height: 43px;
  padding: 0 18px;

  border: 1px solid rgba(17, 24, 39, .2);
  border-radius: var(--radius-small);

  color: var(--black);
  font-size: 11px;
  font-weight: 700;
  white-space: nowrap;

  transition:
    background var(--transition),
    color var(--transition),
    border-color var(--transition),
    transform var(--transition),
    box-shadow var(--transition);
}

.header-action span {
  font-size: 15px;
  transition: transform var(--transition);
}

.header-action:hover {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--white);
  transform: translateY(-2px);
  box-shadow: var(--shadow-blue);
}

.header-action:hover span {
  transform: translate(3px, -3px);
}

/* HOMEPAGE HEADER OVER HERO */

.home-page .site-header:not(.scrolled) .brand {
  color: var(--white);
}

.home-page .site-header:not(.scrolled) .brand span {
  color: var(--accent-light);
}

.home-page .site-header:not(.scrolled) .navigation .nav-link {
  color: rgba(255, 255, 255, .88);
}

.home-page .site-header:not(.scrolled) .navigation .nav-link:hover,
.home-page .site-header:not(.scrolled) .navigation .nav-link.active {
  color: var(--white);
}

.home-page .site-header:not(.scrolled) .navigation .nav-link::after {
  background: var(--accent-light);
}

.home-page .site-header:not(.scrolled) .header-action {
  color: var(--white);
  border-color: rgba(255, 255, 255, .5);
}

.home-page .site-header:not(.scrolled) .header-action:hover {
  background: var(--white);
  color: var(--black);
  border-color: var(--white);
  box-shadow: none;
}

/* HEADER AFTER SCROLL */

.site-header.scrolled {
  background: rgba(247, 248, 250, .94);

  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);

  box-shadow: 0 1px 0 rgba(17, 24, 39, .07);
}

.site-header.scrolled .header-inner {
  min-height: var(--header-height-scrolled);
}

.site-header.scrolled .brand,
.site-header.scrolled .navigation .nav-link {
  color: var(--black);
}

.site-header.scrolled .brand span {
  color: var(--accent);
}

.site-header.scrolled .navigation .nav-link:hover,
.site-header.scrolled .navigation .nav-link.active {
  color: var(--accent);
}

.site-header.scrolled .navigation .nav-link::after {
  background: var(--accent);
}

.site-header.scrolled .header-action {
  color: var(--black);
  border-color: rgba(17, 24, 39, .2);
}

.site-header.scrolled .header-action:hover {
  background: var(--accent);
  color: var(--white);
  border-color: var(--accent);
}

/* =========================================
   5. HERO
========================================= */

.hero {
  position: relative;

  min-height: 760px;
  height: 100svh;
  max-height: 950px;

  display: flex;
  align-items: center;

  overflow: hidden;
  isolation: isolate;

  color: var(--white);
  background: #172033;
}

.hero-background {
  position: absolute;
  inset: -5%;
  z-index: -2;

  background:
    url("https://images.unsplash.com/photo-1518837695005-2083093ee35b?auto=format&fit=crop&w=2200&q=90")
    center 48% / cover no-repeat;

  transform: scale(1.08);
  animation: heroZoom 2s ease-out forwards;

  will-change: transform;
}

@keyframes heroZoom {
  to {
    transform: scale(1);
  }
}

.hero-shade {
  position: absolute;
  inset: 0;
  z-index: -1;

  background:
    linear-gradient(
      90deg,
      rgba(9, 15, 29, .84) 0%,
      rgba(9, 15, 29, .57) 48%,
      rgba(9, 15, 29, .18) 100%
    ),
    linear-gradient(
      0deg,
      rgba(9, 15, 29, .48),
      transparent 48%
    );
}

.hero-container {
  position: relative;
  padding-top: 100px;
}

.hero-content {
  max-width: 850px;
}

.eyebrow {
  display: flex;
  align-items: center;
  gap: 12px;

  color: var(--accent);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 2.5px;
}

.hero-eyebrow {
  color: rgba(255, 255, 255, .84);
  margin-bottom: 30px;
}

.eyebrow-line {
  display: inline-block;

  width: 34px;
  height: 2px;

  background: var(--accent-light);
}

.hero h1 {
  max-width: 850px;

  font-family: var(--font-heading);
  font-size: clamp(45px, 7vw, 88px);
  font-weight: 650;
  line-height: 1.12;
  letter-spacing: -4px;

  text-wrap: balance;
}

.hero h1 span {
  display: block;
  color: var(--accent-light);
}

.hero-description {
  max-width: 510px;
  margin-top: 28px;

  color: rgba(255, 255, 255, .78);
  font-size: 15px;
  line-height: 1.9;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 34px;
  margin-top: 38px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 24px;

  min-height: 54px;
  padding: 0 24px;

  border: 1px solid transparent;

  font-size: 12px;
  font-weight: 700;

  transition:
    transform var(--transition),
    background var(--transition),
    color var(--transition),
    box-shadow var(--transition);
}

.button:hover {
  transform: translateY(-4px);
}

.button-light {
  background: var(--white);
  color: var(--black);
}

.button-light:hover {
  background: var(--accent);
  color: var(--white);
  box-shadow: var(--shadow-blue);
}

.button-arrow {
  font-size: 17px;
  transition: transform var(--transition);
}

.button:hover .button-arrow {
  transform: translate(3px, -3px);
}

.hero-text-link {
  display: inline-flex;
  align-items: center;
  gap: 12px;

  color: rgba(255, 255, 255, .85);
  font-size: 12px;

  transition: color var(--transition);
}

.hero-text-link span {
  font-size: 17px;
  transition: transform var(--transition);
}

.hero-text-link:hover {
  color: var(--accent-light);
}

.hero-text-link:hover span {
  transform: translateY(4px);
}

.hero-bottom {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 35px;

  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.hero-index {
  display: flex;
  align-items: center;
  gap: 13px;

  font-size: 10px;
  letter-spacing: 2px;
}

.index-line {
  width: 42px;
  height: 2px;
  background: var(--accent-light);
}

.hero-bottom p {
  color: rgba(255, 255, 255, .65);
  font-size: 9px;
  letter-spacing: 2px;
}

/* =========================================
   6. MARQUEE
========================================= */

.marquee-section {
  padding: 29px 0;
  overflow: hidden;

  background: var(--white);
  border-bottom: 1px solid var(--light-gray);
}

.marquee-track {
  display: flex;
  width: max-content;

  animation: marqueeMove 35s linear infinite;

  will-change: transform;
}

.marquee-content {
  display: flex;
  align-items: center;
  flex-shrink: 0;
  gap: 42px;
  padding-right: 42px;
}

.marquee-content span {
  color: #536075;

  font-family: var(--font-heading);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 1.5px;

  white-space: nowrap;
}

.marquee-content i {
  color: var(--accent);
  font-size: 19px;
  font-style: normal;
}

@keyframes marqueeMove {
  to {
    transform: translateX(-50%);
  }
}

/* =========================================
   7. SECTION GENERAL
========================================= */

.section-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 15px;

  padding-bottom: 22px;
  border-bottom: 1px solid var(--light-gray);
}

.section-side-label {
  color: var(--gray);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 2px;
}

/* =========================================
   8. INTRODUCTION
========================================= */

.introduction {
  background: var(--background);
}

.introduction-grid {
  display: grid;
  grid-template-columns: 1.15fr .85fr;
  gap: 100px;

  padding-top: 85px;
}

.introduction-heading h2,
.principles-heading h2,
.future-content h2,
.contact-inner h2 {
  margin-top: 25px;

  font-family: var(--font-heading);
  font-size: clamp(36px, 5vw, 58px);
  font-weight: 650;
  line-height: 1.2;
  letter-spacing: -2.5px;

  text-wrap: balance;
}

.introduction-heading h2 span,
.principles-heading h2 span,
.future-content h2 span,
.contact-inner h2 span {
  display: block;
  color: var(--accent);
}

.introduction-copy {
  padding-top: 15px;
}

.large-copy {
  color: var(--black);

  font-family: var(--font-heading);
  font-size: 21px;
  font-weight: 650;
  line-height: 1.65;
}

.introduction-copy > p:not(.large-copy) {
  margin-top: 22px;

  color: var(--gray);
  font-size: 13px;
  line-height: 2;
}

.underlined-link {
  display: inline-flex;
  align-items: center;
  gap: 20px;

  margin-top: 32px;
  padding-bottom: 8px;

  border-bottom: 1px solid var(--accent);

  font-size: 12px;
  font-weight: 700;

  transition:
    gap var(--transition),
    color var(--transition);
}

.underlined-link:hover {
  gap: 30px;
  color: var(--accent);
}

/* =========================================
   9. VISUAL SECTION
========================================= */

.visual-section {
  padding: 0 40px;
}

.visual-image {
  position: relative;

  min-height: 610px;
  overflow: hidden;
  isolation: isolate;

  background: #172033;
  color: var(--white);
}

.visual-image::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;

  background:
    linear-gradient(
      90deg,
      rgba(9, 15, 29, .76),
      rgba(9, 15, 29, .18)
    );
}

.visual-image > img {
  position: absolute;
  inset: 0;
  z-index: -2;

  width: 100%;
  height: 100%;

  object-fit: cover;

  transform: scale(1.04);
  transition: transform 1.2s var(--ease);

  will-change: transform;
}

.visual-image:hover > img {
  transform: scale(1.09);
}

.visual-overlay {
  position: absolute;
  inset: 0;
  z-index: -1;

  background: linear-gradient(
    0deg,
    rgba(0, 0, 0, .4),
    transparent 45%
  );
}

.visual-content {
  position: relative;

  max-width: 650px;
  padding: 145px 10% 150px;
}

.visual-eyebrow {
  color: var(--accent-light);
}

.visual-content h2 {
  margin-top: 30px;

  font-family: var(--font-heading);
  font-size: clamp(40px, 6vw, 68px);
  font-weight: 650;
  line-height: 1.16;
  letter-spacing: -3px;

  text-wrap: balance;
}

.visual-content h2 span {
  display: block;
  color: var(--accent-light);
}

.visual-content p {
  max-width: 430px;
  margin-top: 25px;

  color: rgba(255, 255, 255, .8);
  font-size: 14px;
  line-height: 1.9;
}

.visual-caption {
  position: absolute;
  left: 40px;
  right: 40px;
  bottom: 30px;

  display: flex;
  justify-content: space-between;
  gap: 20px;

  color: rgba(255, 255, 255, .7);
  font-size: 9px;
  font-weight: 600;
  letter-spacing: 1.8px;
}

/* =========================================
   10. PRINCIPLES
========================================= */

.principles {
  background: var(--background);
}

.principles-heading {
  max-width: 700px;
  margin-top: 85px;
}

.principles-heading h2 {
  margin-top: 25px;
}

.principles-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;

  margin-top: 65px;
}

.principle-card {
  position: relative;

  min-height: 330px;
  padding: 35px 30px;

  background: var(--white);
  border: 1px solid rgba(17, 24, 39, .06);
  border-radius: var(--radius-medium);

  transition:
    transform var(--transition),
    box-shadow var(--transition),
    border-color var(--transition);
}

.principle-card:hover {
  transform: translateY(-7px);

  border-color: rgba(40, 100, 232, .3);
  box-shadow: var(--shadow-medium);
}

.principle-number {
  color: #929bad;
  font-size: 10px;
  letter-spacing: 2px;
}

.principle-icon {
  display: flex;
  align-items: center;
  justify-content: center;

  width: 48px;
  height: 48px;
  margin-top: 43px;

  background: var(--accent-soft);
  color: var(--accent);
  font-size: 24px;
  border-radius: var(--radius-small);

  transition:
    transform var(--transition),
    background var(--transition);
}

.principle-card:hover .principle-icon {
  transform: translateY(-3px);
  background: #dce8ff;
}

.principle-card h3 {
  margin-top: 27px;

  font-family: var(--font-heading);
  font-size: 19px;
  font-weight: 750;
}

.principle-card p {
  max-width: 280px;
  margin-top: 13px;

  color: var(--gray);
  font-size: 12px;
  line-height: 1.9;
}

.principle-arrow {
  position: absolute;
  top: 33px;
  right: 30px;

  color: var(--accent);
  font-size: 19px;

  transition: transform var(--transition);
}

.principle-card:hover .principle-arrow {
  transform: translate(4px, -4px);
}

/* =========================================
   11. FUTURE
========================================= */

.future-section {
  position: relative;
  overflow: hidden;

  padding: 125px 0;

  background: var(--surface-muted);
}

.future-section::after {
  content: "Z";
  position: absolute;
  top: -150px;
  right: -15px;

  color: rgba(40, 100, 232, .055);

  font-family: var(--font-heading);
  font-size: 550px;
  font-weight: 800;
  line-height: 1;

  pointer-events: none;
  user-select: none;
}

.future-content {
  position: relative;
  z-index: 1;

  max-width: 720px;
}

.future-content h2 {
  font-size: clamp(40px, 5.5vw, 66px);
}

.future-content > p {
  max-width: 530px;
  margin-top: 25px;

  color: #626e82;
  font-size: 14px;
  line-height: 1.9;
}

.button-dark {
  margin-top: 35px;

  background: var(--black);
  color: var(--white);
}

.button-dark:hover {
  background: var(--accent);
  box-shadow: var(--shadow-blue);
}

/* =========================================
   12. CONTACT
========================================= */

.contact-section {
  padding: 105px 0;
  background: var(--white);
}

.contact-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 50px;
}

.contact-inner h2 {
  font-size: clamp(34px, 4.5vw, 52px);
}

.contact-button {
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  gap: 35px;

  min-width: 210px;
  min-height: 58px;
  padding: 19px 22px;

  border: 1px solid var(--light-gray);
  border-radius: var(--radius-small);

  font-size: 12px;
  font-weight: 700;

  transition:
    background var(--transition),
    color var(--transition),
    border-color var(--transition),
    box-shadow var(--transition);
}

.contact-button span {
  font-size: 18px;
  transition: transform var(--transition);
}

.contact-button:hover {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--white);
  box-shadow: var(--shadow-blue);
}

.contact-button:hover span {
  transform: translate(3px, -3px);
}

/* =========================================
   13. SOCIAL
========================================= */

.social-section {
  position: relative;
  padding: 110px 0;
  overflow: hidden;
  background: #edf1f7;
}

.social-heading {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 30px;
  margin-bottom: 55px;
}

.social-heading h2 {
  max-width: 650px;
  margin: 18px 0 0;

  font-family: var(--font-heading);
  font-size: clamp(34px, 5vw, 58px);
  line-height: 1.15;
  letter-spacing: -2px;
  font-weight: 750;

  color: var(--black);
  text-wrap: balance;
}

.social-heading h2 span {
  display: block;
  color: var(--accent);
}

.social-description {
  max-width: 290px;
  margin: 0 0 5px;

  color: var(--gray);
  font-size: 14px;
  line-height: 1.9;
}

.social-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.social-card {
  position: relative;

  display: flex;
  flex-direction: column;
  justify-content: space-between;

  min-height: 190px;
  padding: 25px;

  background: #fafbfd;
  border: 1px solid #dfe5ef;
  border-radius: var(--radius-medium);

  color: var(--black);
  text-decoration: none;

  transition:
    transform var(--transition),
    background var(--transition),
    border-color var(--transition),
    box-shadow var(--transition);
}

.social-card:hover {
  transform: translateY(-7px);

  background: var(--white);
  border-color: #a9c3fa;

  box-shadow: var(--shadow-blue);
}

.social-card-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.social-symbol {
  display: flex;
  align-items: center;
  justify-content: center;

  width: 48px;
  height: 48px;

  background: var(--accent-soft);
  border: 1px solid #d9e5ff;
  border-radius: 50%;

  transition:
    background var(--transition),
    border-color var(--transition),
    transform var(--transition);
}

.social-symbol img {
  width: 23px;
  height: 23px;
  object-fit: contain;
}

.social-card:hover .social-symbol {
  background: #dce8ff;
  border-color: #b5ccff;
  transform: scale(1.06);
}

.social-arrow {
  display: inline-block;

  color: var(--accent);
  font-size: 19px;

  transition: transform var(--transition);
}

.social-card:hover .social-arrow {
  transform: translate(3px, -3px);
}

.social-card-info h3 {
  margin: 0 0 6px;

  font-family: var(--font-heading);
  font-size: 19px;
  font-weight: 750;
}

.social-card-info p {
  margin: 0;

  color: #778196;
  font-size: 12px;
  overflow-wrap: anywhere;
}

.social-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 15px;

  margin-top: 35px;
  padding-top: 22px;

  border-top: 1px solid #d8e0ed;

  color: var(--gray);
  font-size: 11px;
  letter-spacing: 1px;
}

/* =========================================
   14. FOOTER
========================================= */

.site-footer {
  position: relative;
  overflow: hidden;

  padding: 85px 0 25px;

  background: #e8edf5;
  color: var(--black);
}

.site-footer::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;

  width: 100%;
  height: 3px;

  background: linear-gradient(
    90deg,
    transparent,
    var(--accent),
    transparent
  );

  opacity: .75;
}

.footer-top {
  display: grid;
  grid-template-columns: 1.1fr .9fr;
  gap: 80px;

  padding-bottom: 75px;
}

.footer-brand {
  max-width: 390px;
}

.footer-logo {
  display: inline-block;

  font-size: 38px;
  letter-spacing: -2.2px;

  transition: opacity var(--transition);
}

.footer-logo:hover {
  opacity: .72;
}

.footer-description {
  max-width: 340px;
  margin-top: 20px;

  color: #68758b;
  font-size: 13px;
  line-height: 1.9;
}

.footer-email {
  display: inline-flex;
  align-items: center;
  gap: 14px;

  margin-top: 27px;
  padding-bottom: 8px;

  border-bottom: 1px solid rgba(40, 100, 232, .55);

  font-size: 13px;
  font-weight: 700;

  transition:
    color var(--transition),
    gap var(--transition);
}

.footer-email span {
  color: var(--accent);
  font-size: 17px;
  transition: transform var(--transition);
}

.footer-email:hover {
  color: var(--accent);
  gap: 20px;
}

.footer-email:hover span {
  transform: translate(2px, -2px);
}

.footer-links-group {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 45px;

  padding-top: 12px;
}

.footer-column {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.footer-column-title {
  display: block;

  margin-bottom: 25px;

  color: var(--accent-dark);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 2px;
}

.footer-navigation {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 17px;
}

.footer-navigation a {
  position: relative;

  color: #68758b;
  font-size: 12px;
  font-weight: 500;

  transition:
    color var(--transition),
    transform var(--transition);
}

.footer-navigation a:hover {
  color: var(--accent);
  transform: translateX(4px);
}

.footer-statement {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 25px;

  padding: 24px 0;

  border-top: 1px solid rgba(17, 24, 39, .12);
  border-bottom: 1px solid rgba(17, 24, 39, .12);
}

.footer-statement > span {
  color: var(--accent);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 2px;
}

.footer-statement p {
  color: #68758b;
  font-family: var(--font-heading);
  font-size: 13px;
  font-weight: 600;
  text-align: right;
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;

  padding-top: 25px;

  color: #7c8799;
  font-size: 10px;
}

.footer-back-top {
  display: inline-flex;
  align-items: center;
  gap: 12px;

  color: #68758b;
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 1.4px;

  transition: color var(--transition);
}

.footer-back-top span {
  display: inline-flex;
  align-items: center;
  justify-content: center;

  width: 27px;
  height: 27px;

  border: 1px solid rgba(17, 24, 39, .18);
  border-radius: 50%;

  font-size: 14px;

  transition:
    background var(--transition),
    color var(--transition),
    transform var(--transition);
}

.footer-back-top:hover {
  color: var(--accent);
}

.footer-back-top:hover span {
  transform: translateY(-3px);
  background: var(--accent);
  border-color: var(--accent);
  color: var(--white);
}

/* =========================================
   15. SCROLL REVEAL
========================================= */

[data-reveal] {
  opacity: 0;
  transform: translateY(28px);

  transition:
    opacity .85s ease,
    transform .85s var(--ease);
}

[data-reveal].revealed {
  opacity: 1;
  transform: translateY(0);
}

/* =========================================
   16. INTERACTION & ACCESSIBILITY
========================================= */

a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 5px;
}

.marquee-section:hover .marquee-track {
  animation-play-state: paused;
}

/* =========================================
   17. LARGE TABLET
========================================= */

@media (max-width: 1100px) {

  .header-right {
    gap: 24px;
  }

  .navigation {
    gap: 25px;
  }

  .introduction-grid {
    gap: 65px;
  }

  .principle-card {
    padding-inline: 25px;
  }

  .footer-top {
    gap: 55px;
  }

}

/* =========================================
   18. TABLET
========================================= */

@media (max-width: 900px) {

  .container {
    width: min(100% - 50px, var(--container));
  }

  .header-inner {
    min-height: 82px;
  }

  .site-header.scrolled .header-inner {
    min-height: 70px;
  }

  .brand {
    font-size: 25px;
  }

  .header-right {
    gap: 17px;
  }

  .navigation {
    gap: 19px;
  }

  .nav-link {
    font-size: 11px;
  }

  .header-action {
    min-height: 40px;
    gap: 10px;
    padding-inline: 13px;
    font-size: 10px;
  }

  .introduction-grid {
    gap: 50px;
  }

  .principles-grid {
    gap: 12px;
  }

  .principle-card {
    padding: 28px 22px;
  }

  .visual-section {
    padding: 0 25px;
  }

  .visual-image {
    min-height: 550px;
  }

  .visual-content {
    padding-left: 8%;
  }

  .social-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .footer-top {
    grid-template-columns: 1fr 1fr;
    gap: 35px;
  }

  .footer-links-group {
    gap: 25px;
  }

}

/* =========================================
   19. MOBILE
========================================= */

@media (max-width: 650px) {

  html {
    scroll-padding-top: 75px;
  }

  .container {
    width: calc(100% - 40px);
  }

  .section-space {
    padding: 85px 0;
  }

  /* HEADER — KEEP HORIZONTAL NAVIGATION */

  .header-inner {
    min-height: 74px;
    gap: 10px;
  }

  .site-header.scrolled .header-inner {
    min-height: 66px;
  }

  .brand {
    font-size: 23px;
    letter-spacing: -1.4px;
  }

  .header-right {
    flex: 1;
    justify-content: flex-end;
    gap: 0;
  }

  .navigation {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: clamp(12px, 3.5vw, 20px);

    position: static;
    inset: auto;

    padding: 0;
    background: transparent;

    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: none;
  }

  .navigation .nav-link,
  .home-page .site-header:not(.scrolled) .navigation .nav-link {
    color: rgba(255, 255, 255, .9);

    font-family: var(--font-body);
    font-size: 10px;
    font-weight: 600;
    white-space: nowrap;
  }

  .site-header.scrolled .navigation .nav-link {
    color: var(--black);
  }

  .navigation .nav-link::after {
    bottom: -6px;
    background: var(--accent-light);
  }

  .home-page .site-header:not(.scrolled) .navigation .nav-link::after {
    background: var(--accent-light);
  }

  .header-action {
    display: none;
  }

  /* HERO */

  .hero {
    min-height: 680px;
    height: 100svh;
    max-height: 850px;
  }

  .hero-background {
    background-position: 55% center;
  }

  .hero-shade {
    background:
      linear-gradient(
        90deg,
        rgba(9, 15, 29, .8),
        rgba(9, 15, 29, .4)
      ),
      linear-gradient(
        0deg,
        rgba(9, 15, 29, .55),
        transparent 75%
      );
  }

  .hero-container {
    padding-top: 55px;
  }

  .hero-content {
    max-width: 100%;
  }

  .hero-eyebrow {
    margin-bottom: 24px;
    font-size: 9px;
  }

  .hero h1 {
    font-size: clamp(43px, 11vw, 65px);
    line-height: 1.12;
    letter-spacing: -2.8px;
  }

  .hero-description {
    max-width: 400px;
    margin-top: 24px;

    font-size: 13px;
    line-height: 1.8;
  }

  .hero-actions {
    align-items: flex-start;
    flex-direction: column;
    gap: 22px;
    margin-top: 30px;
  }

  .hero-bottom {
    bottom: 25px;
  }

  .hero-bottom p {
    font-size: 8px;
    letter-spacing: 1px;
  }

  /* MARQUEE */

  .marquee-section {
    padding: 23px 0;
  }

  .marquee-content {
    gap: 25px;
    padding-right: 25px;
  }

  .marquee-content span {
    font-size: 11px;
  }

  /* INTRODUCTION */

  .section-top {
    gap: 15px;
  }

  .section-side-label {
    font-size: 8px;
    letter-spacing: 1px;
  }

  .introduction-grid {
    grid-template-columns: 1fr;
    gap: 35px;
    padding-top: 55px;
  }

  .introduction-heading h2,
  .principles-heading h2,
  .future-content h2 {
    font-size: clamp(36px, 9vw, 48px);
    letter-spacing: -1.8px;
  }

  .large-copy {
    font-size: 18px;
  }

  .introduction-copy > p:not(.large-copy) {
    font-size: 13px;
  }

  /* VISUAL */

  .visual-section {
    padding: 0 12px;
  }

  .visual-image {
    min-height: 590px;
  }

  .visual-image > img {
    object-position: 55% center;
  }

  .visual-content {
    padding: 115px 28px 140px;
  }

  .visual-content h2 {
    font-size: clamp(39px, 9vw, 53px);
    letter-spacing: -2px;
  }

  .visual-content p {
    font-size: 13px;
  }

  .visual-caption {
    left: 25px;
    right: 25px;
    bottom: 24px;

    font-size: 7px;
    letter-spacing: 1px;
  }

  /* PRINCIPLES */

  .principles-heading {
    margin-top: 60px;
  }

  .principles-grid {
    grid-template-columns: 1fr;
    gap: 13px;
    margin-top: 40px;
  }

  .principle-card {
    min-height: 290px;
    padding: 30px;
  }

  .principle-icon {
    margin-top: 30px;
  }

  /* FUTURE */

  .future-section {
    padding: 90px 0;
  }

  .future-section::after {
    top: -30px;
    right: -30px;
    font-size: 300px;
  }

  .future-content > p {
    font-size: 13px;
  }

  /* CONTACT */

  .contact-section {
    padding: 80px 0;
  }

  .contact-inner {
    align-items: flex-start;
    flex-direction: column;
    gap: 35px;
  }

  .contact-inner h2 {
    font-size: clamp(35px, 9vw, 48px);
    letter-spacing: -1.8px;
  }

  /* SOCIAL */

  .social-section {
    padding: 80px 0;
  }

  .social-heading {
    flex-direction: column;
    align-items: flex-start;
    gap: 18px;
    margin-bottom: 35px;
  }

  .social-heading h2 {
    font-size: 36px;
    letter-spacing: -1.5px;
  }

  .social-description {
    max-width: 100%;
  }

  .social-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 11px;
  }

  .social-card {
    min-height: 165px;
    padding: 17px;
  }

  .social-symbol {
    width: 39px;
    height: 39px;
  }

  .social-symbol img {
    width: 20px;
    height: 20px;
  }

  .social-card-info h3 {
    font-size: 16px;
  }

  .social-card-info p {
    font-size: 11px;
  }

  .social-bottom {
    flex-direction: column;
    align-items: flex-start;
    line-height: 1.8;
  }

  /* FOOTER */

  .site-footer {
    padding: 65px 0 22px;
  }

  .footer-top {
    grid-template-columns: 1fr;
    gap: 45px;

    padding-bottom: 45px;
  }

  .footer-logo {
    font-size: 34px;
  }

  .footer-description {
    max-width: 320px;
    font-size: 12px;
  }

  .footer-email {
    margin-top: 22px;
  }

  .footer-links-group {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px;

    padding-top: 5px;
  }

  .footer-column-title {
    margin-bottom: 20px;
    font-size: 8px;
  }

  .footer-navigation {
    gap: 16px;
  }

  .footer-navigation a {
    font-size: 11px;
  }

  .footer-statement {
    align-items: flex-start;
    flex-direction: column;
    gap: 10px;

    padding: 20px 0;
  }

  .footer-statement > span {
    font-size: 8px;
    letter-spacing: 1.5px;
  }

  .footer-statement p {
    font-size: 12px;
    text-align: left;
  }

  .footer-bottom {
    align-items: flex-start;
    flex-direction: column;
    gap: 18px;

    padding-top: 22px;
    font-size: 9px;
  }

}

/* =========================================
   20. EXTRA SMALL MOBILE
========================================= */

@media (max-width: 380px) {

  .container {
    width: calc(100% - 32px);
  }

  .header-inner {
    gap: 7px;
  }

  .brand {
    font-size: 21px;
    letter-spacing: -1.5px;
  }

  .navigation {
    gap: 11px;
  }

  .navigation .nav-link,
  .home-page .site-header:not(.scrolled) .navigation .nav-link {
    font-size: 9px;
  }

  .hero h1 {
    font-size: 40px;
    letter-spacing: -2px;
  }

  .hero-description {
    font-size: 12px;
  }

  .hero-bottom {
    gap: 12px;
  }

  .visual-caption {
    flex-direction: column;
    gap: 9px;
  }

  .section-side-label {
    font-size: 7px;
  }

  .footer-links-group {
    gap: 12px;
  }

}

/* =========================================
   21. LANDSCAPE MOBILE
========================================= */

@media (max-width: 900px) and (orientation: landscape) {

  .hero {
    min-height: 600px;
    height: auto;
  }

  .hero-container {
    padding-top: 130px;
    padding-bottom: 120px;
  }

  .hero-bottom {
    bottom: 25px;
  }

}

/* =========================================
   22. REDUCED MOTION
========================================= */

@media (prefers-reduced-motion: reduce) {

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
  }

  [data-reveal] {
    opacity: 1;
    transform: none;
  }

}

/* =========================================
   23. TOUCH DEVICE REFINEMENT
========================================= */

@media (hover: none) {

  .principle-card:hover {
    transform: none;
    box-shadow: none;
  }

  .visual-image:hover > img {
    transform: scale(1.04);
  }

  .marquee-section:hover .marquee-track {
    animation-play-state: running;
  }

}

/* =========================================
   24. END — Zyzy.id FULL FINAL PRO 3.0
========================================= */