/* ═══════════════════════════════════════════════════
   INOVO — DESIGN SYSTEM
   Pure White / Deep Black / Photo-Driven
   ═══════════════════════════════════════════════════ */

:root {
  /* Monochrome Palette */
  --white: #FFFFFF;
  --off-white: #FAFAFA;
  --gray-50: #F5F5F5;
  --gray-100: #EBEBEB;
  --gray-200: #D4D4D4;
  --gray-300: #A3A3A3;
  --gray-400: #737373;
  --gray-500: #525252;
  --gray-600: #404040;
  --black: #0A0A0A;
  --pure-black: #000000;

  /* Functional Colors - DARK THEME DEFAULT */
  --bg: var(--pure-black);
  --text: var(--white);
  --text-secondary: var(--gray-300);
  --text-muted: var(--gray-400);
  --border: rgba(255, 255, 255, 0.1);
  --border-strong: rgba(255, 255, 255, 0.2);

  /* Layout */
  --nav-height: calc(104px + env(safe-area-inset-top, 0px));
  --container: 1340px;
  --container-wide: 1600px;

  /* Timing */
  --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out-quint: cubic-bezier(0.83, 0, 0.17, 1);
  --ease-out-quart: cubic-bezier(0.25, 1, 0.5, 1);

  --dur-fast: 0.3s;
  --dur-med: 0.6s;
  --dur-slow: 1s;
  --dur-extra: 1.4s;

  /* Fonts */
  --font-body: "Helvetica Neue", Helvetica, Arial, sans-serif;
  --font-heading: "Helvetica Neue", Helvetica, Arial, sans-serif;
  --font-display: "Helvetica Neue", Helvetica, Arial, sans-serif;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--nav-height);
  font-size: 16px;
  background: var(--bg);
  color: var(--text);
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  min-height: 100vh;
  overflow-x: hidden;
  line-height: 1.6;
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 300;
  letter-spacing: -0.03em;
  line-height: 1.08;
}

a { color: inherit; text-decoration: none; }
button { background: none; border: none; font-family: inherit; cursor: pointer; color: inherit; }
img { max-width: 100%; height: auto; display: block; }
ul, ol { list-style: none; }

/* Ensure [hidden] wins over component display:flex rules */
[hidden] { display: none !important; }

/* ─── Container ─── */
.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 clamp(1.2rem, 3.2vw, 2.4rem);
}
.container-wide {
  width: 100%;
  max-width: var(--container-wide);
  margin: 0 auto;
  padding: 0 clamp(1.2rem, 3.2vw, 2.4rem);
}
.container-full {
  width: 100%;
  padding: 0;
}

/* ═══════════════════════════════════════════════════
   SCROLL REVEAL ANIMATION SYSTEM
   IntersectionObserver-driven reveal classes
   ═══════════════════════════════════════════════════ */

/* Base hidden state for ALL reveal elements */
[data-reveal] {
  opacity: 0;
  will-change: opacity, transform;
}

/* Revealed state */
[data-reveal].is-visible {
  opacity: 1;
}

/* Direction variants */
[data-reveal="up"] {
  transform: translateY(80px);
  transition: opacity var(--dur-slow) var(--ease-out-expo),
              transform var(--dur-extra) var(--ease-out-expo);
}
[data-reveal="up"].is-visible {
  transform: translateY(0);
}

[data-reveal="down"] {
  transform: translateY(-50px);
  transition: opacity var(--dur-slow) var(--ease-out-expo),
              transform var(--dur-extra) var(--ease-out-expo);
}
[data-reveal="down"].is-visible {
  transform: translateY(0);
}

[data-reveal="left"] {
  transform: translateX(-80px);
  transition: opacity var(--dur-slow) var(--ease-out-expo),
              transform var(--dur-extra) var(--ease-out-expo);
}
[data-reveal="left"].is-visible {
  transform: translateX(0);
}

[data-reveal="right"] {
  transform: translateX(80px);
  transition: opacity var(--dur-slow) var(--ease-out-expo),
              transform var(--dur-extra) var(--ease-out-expo);
}
[data-reveal="right"].is-visible {
  transform: translateX(0);
}

[data-reveal="scale"] {
  transform: scale(0.88);
  transition: opacity var(--dur-slow) var(--ease-out-expo),
              transform var(--dur-extra) var(--ease-out-expo);
}
[data-reveal="scale"].is-visible {
  transform: scale(1);
}

[data-reveal="fade"] {
  transition: opacity var(--dur-extra) var(--ease-out-expo);
}
[data-reveal="fade"].is-visible {
  opacity: 1;
}

/* Clip-path reveal (image wipe from bottom) */
[data-reveal="clip"] {
  clip-path: inset(100% 0 0 0);
  opacity: 1;
  transition: clip-path var(--dur-extra) var(--ease-in-out-quint);
}
[data-reveal="clip"].is-visible {
  clip-path: inset(0 0 0 0);
}

[data-reveal="clip-left"] {
  clip-path: inset(0 100% 0 0);
  opacity: 1;
  transition: clip-path var(--dur-extra) var(--ease-in-out-quint);
}
[data-reveal="clip-left"].is-visible {
  clip-path: inset(0 0 0 0);
}

/* Stagger delays for sequential reveals */
[data-delay="1"] { transition-delay: 0.1s !important; }
[data-delay="2"] { transition-delay: 0.2s !important; }
[data-delay="3"] { transition-delay: 0.3s !important; }
[data-delay="4"] { transition-delay: 0.4s !important; }
[data-delay="5"] { transition-delay: 0.5s !important; }
[data-delay="6"] { transition-delay: 0.6s !important; }
[data-delay="7"] { transition-delay: 0.7s !important; }
[data-delay="8"] { transition-delay: 0.8s !important; }

/* ═══════════════════════════════════════════════════
   MICRO-ANIMATION UTILITIES
   ═══════════════════════════════════════════════════ */

/* Image hover zoom */
.img-wrap {
  overflow: hidden;
  position: relative;
}
.img-wrap img,
.img-wrap > div {
  transition: transform 0.8s var(--ease-out-expo);
}
.img-wrap:hover img,
.img-wrap:hover > div {
  transform: scale(1.05);
}

/* Underline hover animation */
.hover-line {
  position: relative;
  display: inline-block;
}
.hover-line::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--text);
  transition: width var(--dur-med) var(--ease-out-expo);
}
.hover-line:hover::after {
  width: 100%;
}

/* Scale up on hover */
.hover-lift {
  transition: transform var(--dur-med) var(--ease-out-expo),
              box-shadow var(--dur-med) var(--ease-out-expo);
}
.hover-lift:hover {
  transform: translateY(-8px);
  box-shadow: 0 30px 60px rgba(0, 0, 0, 0.08);
}

/* ═══════════════════════════════════════════════════
   PARALLAX IMAGE CONTAINERS
   ═══════════════════════════════════════════════════ */

.parallax-container {
  position: relative;
  overflow: hidden;
  will-change: transform;
}
.parallax-img {
  position: absolute;
  inset: -15% 0;
  width: 100%;
  height: 130%;
  object-fit: cover;
  will-change: transform;
}

/* ═══════════════════════════════════════════════════
   TYPOGRAPHY UTILITIES
   ═══════════════════════════════════════════════════ */

.label {
  font-family: var(--font-body);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.label-dark {
  color: rgba(255, 255, 255, 0.4);
}

.heading-xl {
  font-size: clamp(2.8rem, 6.4vw, 6.4rem);
  line-height: 0.95;
  letter-spacing: -0.04em;
  font-weight: 300;
}

.heading-lg {
  font-size: clamp(2rem, 4.4vw, 4rem);
  line-height: 1.02;
  letter-spacing: -0.035em;
  font-weight: 300;
}

.heading-md {
  font-size: clamp(1.4rem, 2.4vw, 2.2rem);
  line-height: 1.12;
  letter-spacing: -0.02em;
  font-weight: 300;
}

.body-lg {
  font-size: clamp(0.88rem, 1.28vw, 1.08rem);
  line-height: 1.6;
  font-weight: 300;
  color: var(--text-secondary);
}

.body-sm {
  font-size: 0.92rem;
  line-height: 1.65;
  font-weight: 400;
  color: var(--text-secondary);
}

/* ═══════════════════════════════════════════════════
   BUTTON STYLES
   ═══════════════════════════════════════════════════ */

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  background: var(--white);
  color: var(--black);
  padding: 1.1rem 2.25rem;
  font-size: 0.78rem;
  font-weight: 700;
  border-radius: 30px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-family: var(--font-body);
  position: relative;
  overflow: hidden;
  transition: transform var(--dur-fast) ease,
              box-shadow var(--dur-fast) ease;
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 20px rgba(255, 255, 255, 0.2);
}

.btn-outline {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  border: 1px solid var(--border-strong);
  border-radius: 30px;
  color: var(--text);
  padding: 1rem 2rem;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-family: var(--font-body);
  transition: all var(--dur-fast) ease;
}
.btn-outline:hover {
  border-color: var(--white);
  background: var(--white);
  color: var(--black);
}

/* Glossy Utility */
.glossy-card {
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 30px;
}
.grayscale-hover {
  filter: grayscale(100%);
  transition: filter 0.4s ease;
}
.grayscale-hover:hover {
  filter: grayscale(0%);
}

/* ═══════════════════════════════════════════════════
   KEYFRAMES
   ═══════════════════════════════════════════════════ */

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(40px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes scaleIn {
  from { opacity: 0; transform: scale(0.92); }
  to { opacity: 1; transform: scale(1); }
}

@keyframes slideInRight {
  from { opacity: 0; transform: translateX(60px); }
  to { opacity: 1; transform: translateX(0); }
}

@keyframes lineGrow {
  from { width: 0; }
  to { width: 100%; }
}

@keyframes countUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes marquee {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

@keyframes pulse-dot {
  0%, 100% { opacity: 0.3; transform: scale(1); }
  50% { opacity: 1; transform: scale(1.3); }
}

/* ─── Responsive ─── */
@media (max-width: 1023px) {
  :root {
    /* Compact top logo bar ≈ safe-area + padding + logo */
    --nav-height: calc(92px + env(safe-area-inset-top, 0px));
  }
}

/* ═══════════════════════════════════════════════════
   100VH LAYOUT UTILITIES & FLUID SCROLL
   ═══════════════════════════════════════════════════ */
.section-vh {
  min-height: 100vh;
  min-height: 100svh;
  width: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  position: relative;
  overflow: hidden;
  padding: clamp(2rem, 5vh, 4rem) 0;
}
.horizontal-scroll-container {
  display: flex;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}
.horizontal-scroll-container::-webkit-scrollbar {
  display: none;
}
.scroll-item {
  scroll-snap-align: start;
}

/* Global mobile visibility helpers */
.show-mobile {
  display: none !important;
}

@media (max-width: 960px) {
  .hide-mobile {
    display: none !important;
  }
  .show-mobile {
    display: block !important;
  }
  .show-mobile-flex {
    display: flex !important;
  }

  /* Content-driven sections — no forced full-viewport panels */
  .section-vh {
    min-height: 0;
    height: auto;
    justify-content: flex-start;
    overflow: visible;
    padding: clamp(3.5rem, 10vw, 5rem) 0;
  }
}