/* ==========================================================================
   Dibora Studio - Design System
   ========================================================================== */

:root {
  /* Color system */
  --color-white: #FFFFFF;
  --color-hero: #0F0F0F;
  --color-hero-alt: #17171A;
  --color-accent: #F97316;
  --color-accent-hover: #EA580C;
  --color-accent-soft: rgba(249, 115, 22, 0.1);
  --color-text: #111111;
  --color-text-secondary: #666666;
  --color-border: #ECECEC;
  --color-border-strong: #E0E0E0;

  /* Type scale */
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --fs-hero: clamp(2.6rem, 5vw + 1rem, 4.6rem);
  --fs-h1: clamp(2.2rem, 3.4vw + 1rem, 3.4rem);
  --fs-h2: clamp(1.7rem, 2vw + 1rem, 2.4rem);
  --fs-h3: 1.25rem;
  --fs-body-lg: 1.15rem;
  --fs-body: 1rem;
  --fs-small: 0.875rem;
  --fs-caption: 0.75rem;

  /* Spacing scale */
  --space-3xs: 0.25rem;
  --space-2xs: 0.5rem;
  --space-xs: 0.75rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2.5rem;
  --space-xl: 4rem;
  --space-2xl: 6rem;
  --space-3xl: 8rem;

  /* Radius */
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 24px;
  --radius-pill: 999px;

  /* Shadow */
  --shadow-sm: 0 2px 8px rgba(17, 17, 17, 0.05);
  --shadow-md: 0 10px 30px rgba(17, 17, 17, 0.07);
  --shadow-lg: 0 24px 60px rgba(17, 17, 17, 0.12);
  --shadow-accent: 0 14px 34px rgba(249, 115, 22, 0.28);

  /* Motion */
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
  --dur-fast: 180ms;
  --dur-med: 420ms;
  --dur-slow: 720ms;

  --container: 1200px;
  --nav-height: 84px;
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

body, h1, h2, h3, h4, p, figure, blockquote, dl, dd { margin: 0; }
ul[class], ol[class] { list-style: none; margin: 0; padding: 0; }
img, picture, svg { display: block; max-width: 100%; }
input, button, textarea, select { font: inherit; color: inherit; }
a { color: inherit; text-decoration: none; }
button { cursor: pointer; }

body {
  font-family: var(--font-body);
  color: var(--color-text);
  background: var(--color-white);
  font-size: var(--fs-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: clamp(1.25rem, 4vw, 2.5rem);
}

section { padding-block: var(--space-2xl); }

h1, h2, h3, h4 {
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.12;
  color: var(--color-text);
}
h1 { font-size: var(--fs-h1); }
h2 { font-size: var(--fs-h2); }
h3 { font-size: var(--fs-h3); }

p { color: var(--color-text-secondary); }
p.lead { font-size: var(--fs-body-lg); }

:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
  border-radius: 4px;
}

/* ---------- Eyebrow / signature label ---------- */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2xs);
  font-size: var(--fs-caption);
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-sm);
}
.eyebrow::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-accent);
  box-shadow: 0 0 0 4px var(--color-accent-soft);
}
.eyebrow.on-dark { color: #FDBA74; }
.eyebrow.on-dark::before { background: #FDBA74; box-shadow: 0 0 0 4px rgba(253, 186, 116, 0.18); }

.section-head {
  max-width: 640px;
  margin-bottom: var(--space-xl);
}
.section-head.center { margin-inline: auto; text-align: center; }
.section-head p { margin-top: var(--space-sm); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2xs);
  padding: 0.9rem 1.7rem;
  border-radius: var(--radius-pill);
  font-weight: 600;
  font-size: var(--fs-body);
  white-space: nowrap;
  transition: transform var(--dur-fast) var(--ease),
              background-color var(--dur-fast) var(--ease),
              border-color var(--dur-fast) var(--ease),
              box-shadow var(--dur-fast) var(--ease),
              color var(--dur-fast) var(--ease);
  border: 1px solid transparent;
}
.btn svg { width: 1em; height: 1em; }

.btn-primary {
  background: var(--color-accent);
  color: var(--color-white);
  box-shadow: var(--shadow-accent);
}
.btn-primary:hover {
  background: var(--color-accent-hover);
  transform: translateY(-2px);
  box-shadow: 0 18px 40px rgba(249, 115, 22, 0.34);
}
.btn-primary:active { transform: translateY(0); }

.btn-secondary {
  background: transparent;
  color: var(--color-accent);
  border-color: var(--color-accent);
}
.btn-secondary:hover {
  background: var(--color-accent);
  color: var(--color-white);
  transform: translateY(-2px);
}

.btn-ghost-light {
  background: rgba(255,255,255,0.06);
  color: var(--color-white);
  border-color: rgba(255,255,255,0.24);
}
.btn-ghost-light:hover {
  background: rgba(255,255,255,0.14);
  border-color: rgba(255,255,255,0.4);
  transform: translateY(-2px);
}

.btn-sm { padding: 0.6rem 1.15rem; font-size: var(--fs-small); }
.btn-block { width: 100%; }

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-weight: 600;
  color: var(--color-text);
  border-bottom: 1px solid var(--color-border-strong);
  padding-bottom: 2px;
  transition: color var(--dur-fast) var(--ease), border-color var(--dur-fast) var(--ease), gap var(--dur-fast) var(--ease);
}
.text-link:hover { color: var(--color-accent); border-color: var(--color-accent); gap: 0.6rem; }

/* ---------- Navigation ---------- */
.site-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--nav-height);
  display: flex;
  align-items: center;
  background: rgba(255, 255, 255, 0.78);
  backdrop-filter: blur(14px) saturate(160%);
  -webkit-backdrop-filter: blur(14px) saturate(160%);
  border-bottom: 1px solid var(--color-border);
  transition: box-shadow var(--dur-fast) var(--ease);
}
.site-nav.scrolled { box-shadow: 0 4px 24px rgba(17,17,17,0.06); }

.nav-inner {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: clamp(1.25rem, 4vw, 2.5rem);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: -0.02em;
  color: var(--color-text);
}
.brand-mark {
  width: 11px;
  height: 11px;
  border-radius: 3px;
  background: var(--color-accent);
  transform: rotate(45deg);
  flex-shrink: 0;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}
.nav-links a {
  position: relative;
  font-size: var(--fs-small);
  font-weight: 500;
  color: var(--color-text);
  padding-block: 6px;
}
.nav-links a::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: 0;
  height: 2px;
  background: var(--color-accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--dur-fast) var(--ease);
}
.nav-links a:hover::after,
.nav-links a[aria-current="page"]::after { transform: scaleX(1); }
.nav-links a[aria-current="page"] { color: var(--color-accent); }

.nav-cta { display: flex; align-items: center; gap: var(--space-sm); }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  padding: 8px;
}
.nav-toggle span {
  width: 22px;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: transform var(--dur-fast) var(--ease), opacity var(--dur-fast) var(--ease);
}
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- Footer ---------- */
.site-footer {
  background: var(--color-hero);
  color: rgba(255,255,255,0.7);
  padding-block: var(--space-2xl) var(--space-lg);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.1fr;
  gap: var(--space-xl);
  padding-bottom: var(--space-xl);
  border-bottom: 1px solid rgba(255,255,255,0.1);
}
.footer-brand .brand { color: var(--color-white); }
.footer-brand p { margin-top: var(--space-sm); max-width: 30ch; color: rgba(255,255,255,0.55); }
.footer-col h4 {
  color: var(--color-white);
  font-size: var(--fs-small);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: var(--space-md);
}
.footer-col ul { display: flex; flex-direction: column; gap: var(--space-2xs); }
.footer-col a {
  color: rgba(255,255,255,0.6);
  font-size: var(--fs-small);
  transition: color var(--dur-fast) var(--ease), padding-left var(--dur-fast) var(--ease);
}
.footer-col a:hover { color: var(--color-white); }

.footer-social { display: flex; gap: var(--space-2xs); margin-top: var(--space-sm); }
.footer-social a {
  width: 38px; height: 38px;
  display: inline-flex; align-items: center; justify-content: center;
  border: 1px solid rgba(255,255,255,0.16);
  border-radius: 50%;
  transition: background var(--dur-fast) var(--ease), border-color var(--dur-fast) var(--ease), transform var(--dur-fast) var(--ease);
}
.footer-social a:hover { background: var(--color-accent); border-color: var(--color-accent); transform: translateY(-3px); }
.footer-social svg { width: 16px; height: 16px; }

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-lg);
  font-size: var(--fs-caption);
  color: rgba(255,255,255,0.4);
}
.footer-bottom a { color: rgba(255,255,255,0.4); }
.footer-bottom a:hover { color: var(--color-white); }
.footer-legal { display: flex; gap: var(--space-md); }

/* ---------- Cards ---------- */
.card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: transform var(--dur-med) var(--ease), box-shadow var(--dur-med) var(--ease), border-color var(--dur-med) var(--ease);
}
.card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}

/* ---------- Reveal animation ---------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity var(--dur-slow) var(--ease), transform var(--dur-slow) var(--ease);
}
[data-reveal].is-visible { opacity: 1; transform: translateY(0); }
[data-reveal-group] > * { transition-delay: calc(var(--i, 0) * 80ms); }

/* ---------- Hero (shared black section) ---------- */
.hero {
  background: var(--color-hero);
  background-image:
    radial-gradient(560px 320px at 88% 8%, rgba(249,115,22,0.16), transparent 70%),
    linear-gradient(180deg, #0F0F0F 0%, #131313 100%);
  color: var(--color-white);
  position: relative;
  overflow: hidden;
  padding-top: clamp(3rem, 8vw, 5.5rem);
  padding-bottom: clamp(3rem, 8vw, 5.5rem);
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.035) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, black 40%, transparent 90%);
  pointer-events: none;
}
.hero .container { position: relative; z-index: 1; }
.hero p { color: rgba(255,255,255,0.62); }
.hero h1, .hero h2 { color: var(--color-white); }

/* Framing / crop-mark motif for image containers - signature element */
.frame {
  position: relative;
  border-radius: var(--radius-lg);
}
.frame::before, .frame::after,
.frame .corner-tl, .frame .corner-br { display: none; }
.frame-marks span {
  position: absolute;
  width: 22px;
  height: 22px;
  border: 2px solid var(--color-accent);
  opacity: 0.9;
}
.frame-marks span:nth-child(1) { top: -10px; left: -10px; border-right: none; border-bottom: none; border-top-left-radius: 6px; }
.frame-marks span:nth-child(2) { top: -10px; right: -10px; border-left: none; border-bottom: none; border-top-right-radius: 6px; }
.frame-marks span:nth-child(3) { bottom: -10px; left: -10px; border-right: none; border-top: none; border-bottom-left-radius: 6px; }
.frame-marks span:nth-child(4) { bottom: -10px; right: -10px; border-left: none; border-top: none; border-bottom-right-radius: 6px; }

.img-placeholder {
  position: relative;
  width: 100%;
  aspect-ratio: 4 / 5;
  border-radius: var(--radius-lg);
  background: linear-gradient(160deg, #1D1D1F 0%, #0B0B0C 100%);
  border: 1px solid rgba(255,255,255,0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.img-placeholder.light {
  background: linear-gradient(160deg, #FAFAFA 0%, #F1F1F1 100%);
  border: 1px dashed var(--color-border-strong);
}
.img-placeholder-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
  color: rgba(255,255,255,0.4);
  text-align: center;
  padding: var(--space-md);
}
.img-placeholder.light .img-placeholder-content { color: #B3B3B3; }
.img-placeholder-content svg { width: 40px; height: 40px; opacity: 0.7; }
.img-placeholder-content span { font-size: var(--fs-caption); letter-spacing: 0.06em; text-transform: uppercase; font-weight: 600; }

/* ---------- Page header (non-home pages) ---------- */
.page-header {
  padding-top: clamp(3rem, 7vw, 4.5rem);
  padding-bottom: clamp(2.5rem, 5vw, 3.5rem);
}
.page-header .container { max-width: 760px; }

/* ---------- Legal pages ---------- */
.legal-content {
  width: 100%;
  max-width: 880px;
  margin-inline: auto;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: clamp(1.5rem, 4vw, 3.5rem);
  box-shadow: var(--shadow-md);
}
.legal-section + .legal-section {
  margin-top: clamp(2rem, 4vw, 3rem);
  padding-top: clamp(2rem, 4vw, 3rem);
  border-top: 1px solid var(--color-border);
}
.legal-section h2 {
  margin-bottom: var(--space-sm);
  font-size: var(--fs-h3);
  line-height: 1.35;
}
.legal-section p {
  max-width: 70ch;
  color: var(--color-text-secondary);
  line-height: 1.8;
}
.legal-section p + p { margin-top: var(--space-sm); }
.legal-section a { color: var(--color-accent); text-decoration: underline; text-underline-offset: 3px; }
.legal-section a:hover { color: var(--color-accent-hover); }
@media (max-width: 640px) {
  .legal-content {
    border-radius: var(--radius-md);
    padding: 1.5rem;
  }
}

/* ---------- Utility ---------- */
.flex { display: flex; }
.grid { display: grid; }
.mt-0 { margin-top: 0; }
.text-center { text-align: center; }
.hidden-mobile { display: initial; }

/* ==========================================================================
   Responsive
   ========================================================================== */
@media (max-width: 980px) {
  .footer-grid { grid-template-columns: 1fr 1fr; gap: var(--space-lg) var(--space-md); }
}

@media (max-width: 860px) {
  .nav-links { display: none; }
  .nav-toggle { display: inline-flex; }
  .nav-cta .btn-sm.hidden-mobile { display: none; }

  .site-nav.menu-open .nav-links {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: var(--nav-height);
    left: 0; right: 0;
    background: var(--color-white);
    padding: var(--space-md) clamp(1.25rem, 4vw, 2.5rem) var(--space-lg);
    border-bottom: 1px solid var(--color-border);
    gap: var(--space-md);
    box-shadow: var(--shadow-md);
  }
}

@media (max-width: 640px) {
  section { padding-block: var(--space-xl); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-bottom { flex-direction: column; gap: var(--space-sm); align-items: flex-start; }
}

/* User-replaceable brand logo and image assets */
.brand-mark img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
}
.img-placeholder > img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* The logo image replaces the previous generated brand mark. */
.brand-mark {
  width: 32px;
  height: 32px;
  border-radius: 0;
  background: transparent;
  transform: none;
  overflow: hidden;
}