/* ==========================================================================
   Mirsal Tech — Design Tokens
   ========================================================================== */

:root {
  /* Color */
  --color-bg: #0D0C0A;
  --color-bg-elevated: #161410;
  --color-bg-elevated-2: #1F1B15;
  --color-border: rgba(245, 241, 234, 0.09);
  --color-border-strong: rgba(245, 241, 234, 0.16);
  --color-text-primary: #F5F1EA;
  --color-text-secondary: #B7AF9E;
  --color-text-tertiary: #837A69;
  --color-accent: #C6A15B;
  --color-accent-bright: #DCBD7B;
  --color-accent-dim: #8C723F;
  --color-on-accent: #14110C;
  --color-success: #7FA37F;

  /* Typography */
  --font-display: 'Playfair Display', 'Georgia', serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;

  --text-xs: 0.8125rem;
  --text-sm: 0.9375rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.375rem;
  --text-2xl: clamp(1.5rem, 1.3rem + 1vw, 1.875rem);
  --text-3xl: clamp(1.875rem, 1.5rem + 1.8vw, 2.5rem);
  --text-4xl: clamp(2.25rem, 1.7rem + 2.6vw, 3.25rem);
  --text-5xl: clamp(2.75rem, 1.9rem + 4vw, 4.5rem);
  --text-6xl: clamp(2.75rem, 1.9rem + 3.2vw, 4.25rem);

  /* Spacing (spacious scale) */
  --space-1: 0.5rem;
  --space-2: 1rem;
  --space-3: 1.5rem;
  --space-4: 2rem;
  --space-5: 3rem;
  --space-6: 4rem;
  --space-7: 6rem;
  --space-8: 8rem;

  /* Radius */
  --radius-sm: 6px;
  --radius-md: 14px;
  --radius-lg: 24px;
  --radius-full: 999px;

  /* Motion */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
  --duration-fast: 180ms;
  --duration-base: 320ms;
  --duration-slow: 560ms;

  /* Layout */
  --container-max: 1240px;
  --container-pad: 1.5rem;

  color-scheme: dark;
}

@media (min-width: 768px) {
  :root {
    --container-pad: 2.5rem;
  }
}

/* ==========================================================================
   Reset
   ========================================================================== */

*, *::before, *::after { box-sizing: border-box; }

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

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text-primary);
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

img, svg, video { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: none; cursor: pointer; }
ul, ol { list-style: none; margin: 0; padding: 0; }
h1, h2, h3, h4, p { margin: 0; }

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

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

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}

/* ==========================================================================
   Typography
   ========================================================================== */

h1, h2, h3, .font-display {
  font-family: var(--font-display);
  font-weight: 500;
  line-height: 1.12;
  letter-spacing: -0.01em;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.6em;
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-accent);
}

.eyebrow::before {
  content: '';
  width: 28px;
  height: 1px;
  background: var(--color-accent-dim);
}

.text-secondary { color: var(--color-text-secondary); }

.lede {
  font-size: var(--text-lg);
  color: var(--color-text-secondary);
  line-height: 1.7;
  max-width: 42em;
}

/* ==========================================================================
   Layout
   ========================================================================== */

.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-pad);
}

.section {
  padding-block: var(--space-7);
  position: relative;
}

@media (min-width: 1024px) {
  .section { padding-block: var(--space-8); }
}

.section-head {
  max-width: 46rem;
  margin-bottom: var(--space-6);
}

.section-head.align-center {
  margin-inline: auto;
  text-align: center;
}

.grain-bg {
  position: relative;
  isolation: isolate;
}

.grain-bg::before {
  content: '';
  position: absolute;
  inset: 0;
  z-index: -1;
  opacity: 0.5;
  background-image: radial-gradient(rgba(245,241,234,0.035) 1px, transparent 1px);
  background-size: 3px 3px;
  pointer-events: none;
}

/* ==========================================================================
   Buttons
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.95rem 1.75rem;
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: 0.01em;
  white-space: nowrap;
  cursor: pointer;
  transition: transform var(--duration-base) var(--ease-out),
              box-shadow var(--duration-base) var(--ease-out),
              background var(--duration-base) var(--ease-out),
              border-color var(--duration-base) var(--ease-out);
}

.btn svg { width: 1.05em; height: 1.05em; transition: transform var(--duration-base) var(--ease-out); }

.btn-primary {
  background: linear-gradient(155deg, var(--color-accent-bright), var(--color-accent));
  color: var(--color-on-accent);
  box-shadow: 0 1px 0 rgba(255,255,255,0.25) inset, 0 12px 30px -10px rgba(198,161,91,0.45);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 1px 0 rgba(255,255,255,0.3) inset, 0 18px 40px -10px rgba(198,161,91,0.6);
}

.btn-primary:hover svg { transform: translateX(3px); }

.btn-ghost {
  background: transparent;
  color: var(--color-text-primary);
  border: 1px solid var(--color-border-strong);
}

.btn-ghost:hover {
  border-color: var(--color-accent-dim);
  background: rgba(245,241,234,0.03);
  transform: translateY(-2px);
}

.btn-sm { padding: 0.7rem 1.3rem; font-size: var(--text-xs); }

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text-primary);
  border-bottom: 1px solid var(--color-border-strong);
  padding-bottom: 0.2rem;
  transition: border-color var(--duration-base) var(--ease-out), color var(--duration-base) var(--ease-out), gap var(--duration-base) var(--ease-out);
}

.text-link svg { width: 1em; height: 1em; transition: transform var(--duration-base) var(--ease-out); }

.text-link:hover {
  color: var(--color-accent-bright);
  border-color: var(--color-accent-dim);
}

.text-link:hover svg { transform: translateX(4px); }

/* ==========================================================================
   Navigation
   ========================================================================== */

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding-block: 1.5rem;
  transition: padding var(--duration-base) var(--ease-out),
              background var(--duration-base) var(--ease-out),
              border-color var(--duration-base) var(--ease-out),
              backdrop-filter var(--duration-base) var(--ease-out);
  border-bottom: 1px solid transparent;
}

.site-header.is-scrolled {
  padding-block: 1rem;
  background: rgba(13, 12, 10, 0.78);
  backdrop-filter: blur(14px) saturate(140%);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  border-color: var(--color-border);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 600;
  letter-spacing: 0.01em;
}

.brand-mark {
  width: 34px;
  height: 34px;
  object-fit: contain;
}

.nav-links {
  display: none;
  align-items: center;
  gap: var(--space-5);
}

.nav-links a {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  position: relative;
  padding-block: 0.3rem;
  transition: color var(--duration-base) var(--ease-out);
}

.nav-links a::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 1px;
  background: var(--color-accent);
  transition: width var(--duration-base) var(--ease-out);
}

.nav-links a:hover { color: var(--color-text-primary); }
.nav-links a:hover::after { width: 100%; }

.nav-actions { display: flex; align-items: center; gap: var(--space-3); }

.nav-actions .btn { display: none; }

@media (min-width: 640px) {
  .nav-actions .btn { display: inline-flex; }
}

@media (min-width: 900px) {
  .nav-links { display: flex; }
}

.nav-toggle {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
}

.nav-toggle svg { width: 22px; height: 22px; }

.nav-toggle .icon-close { display: none; }

.nav-toggle[aria-expanded="true"] .icon-menu { display: none; }
.nav-toggle[aria-expanded="true"] .icon-close { display: block; }

@media (min-width: 900px) {
  .nav-toggle { display: none; }
}

.mobile-menu {
  position: fixed;
  inset: 0;
  z-index: 99;
  background: var(--color-bg);
  display: flex;
  flex-direction: column;
  padding: 6.5rem var(--container-pad) var(--space-6);
  gap: var(--space-2);
  transform: translateY(-8px);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--duration-base) var(--ease-out), transform var(--duration-base) var(--ease-out);
}

.mobile-menu.is-open {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.mobile-menu a {
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  padding-block: 0.5rem;
  border-bottom: 1px solid var(--color-border);
}

.mobile-menu .btn { margin-top: var(--space-4); align-self: flex-start; }

/* ==========================================================================
   Hero
   ========================================================================== */

.hero {
  position: relative;
  padding-top: clamp(8rem, 6rem + 8vw, 11rem);
  padding-bottom: var(--space-7);
  overflow: hidden;
}

/* Aurora — living gradient backdrop for the hero, "sunset" palette.
   Each blob owns its own animation/timing so they drift independently
   rather than rocking together as one rigid layer. */
.aurora {
  position: absolute;
  inset: 0;
  z-index: -1;
  overflow: hidden;
  pointer-events: none;
  -webkit-mask-image: radial-gradient(ellipse 70% 60% at 50% 15%, #000 35%, transparent 85%);
  mask-image: radial-gradient(ellipse 70% 60% at 50% 15%, #000 35%, transparent 85%);
}

.aurora-blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(65px);
  mix-blend-mode: screen;
  will-change: transform;
}

.aurora-blob.b1 {
  width: 46%; height: 46%; top: 4%; left: 10%;
  background: radial-gradient(circle, rgba(224, 138, 62, 0.55), transparent 70%);
  animation: auroraDrift1 19s ease-in-out infinite alternate;
}

.aurora-blob.b2 {
  width: 50%; height: 50%; top: -4%; left: 52%;
  background: radial-gradient(circle, rgba(217, 105, 79, 0.48), transparent 70%);
  animation: auroraDrift2 26s ease-in-out infinite alternate;
  animation-delay: -6s;
}

.aurora-blob.b3 {
  width: 42%; height: 42%; top: 34%; left: 34%;
  background: radial-gradient(circle, rgba(242, 200, 121, 0.42), transparent 70%);
  animation: auroraDrift3 22s ease-in-out infinite alternate;
  animation-delay: -11s;
}

.aurora-blob.b4 {
  width: 40%; height: 40%; top: 24%; left: 64%;
  background: radial-gradient(circle, rgba(122, 59, 46, 0.4), transparent 70%);
  animation: auroraDrift4 30s ease-in-out infinite alternate;
  animation-delay: -4s;
}

@keyframes auroraDrift1 {
  0%   { transform: translate(0, 0) scale(1); }
  50%  { transform: translate(9%, -12%) scale(1.16); }
  100% { transform: translate(-7%, 6%) scale(0.94); }
}

@keyframes auroraDrift2 {
  0%   { transform: translate(0, 0) scale(1); }
  50%  { transform: translate(-11%, 9%) scale(0.9); }
  100% { transform: translate(6%, 13%) scale(1.1); }
}

@keyframes auroraDrift3 {
  0%   { transform: translate(0, 0) scale(1); }
  50%  { transform: translate(8%, 10%) scale(1.12); }
  100% { transform: translate(-10%, -7%) scale(0.92); }
}

@keyframes auroraDrift4 {
  0%   { transform: translate(0, 0) scale(1); }
  50%  { transform: translate(-9%, -8%) scale(0.9); }
  100% { transform: translate(10%, 7%) scale(1.14); }
}

/* Cursor backlight — follows the pointer inside the hero, sunset-toned. */
.cursor-glow {
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  opacity: 0;
  mix-blend-mode: screen;
  filter: blur(15px);
  background: radial-gradient(circle 260px at var(--cx, 50%) var(--cy, 50%),
    rgba(242, 200, 121, 0.4), transparent 70%);
  transition: opacity 400ms var(--ease-out);
}

.cursor-glow.is-active { opacity: 1; }

.hero-content { max-width: 44rem; }

.hero h1 { margin-bottom: var(--space-3); font-size: var(--text-6xl); }
.hero h1 em { color: var(--color-accent); font-style: normal; }

/* Hero entrance — plays once on load, not on scroll. Words resolve out of a
   soft blur rather than sliding in, so it reads as considered rather than
   the same translateY fade used for scroll reveals elsewhere on the page. */
.hero-title .word {
  display: inline-block;
  opacity: 0;
  transform: translateY(0.4em);
  filter: blur(8px);
  animation: heroWordIn 0.9s var(--ease-out) forwards;
  animation-delay: calc(0.2s + var(--w, 0) * 0.09s);
}

.hero-enter {
  opacity: 0;
  transform: translateY(14px);
  filter: blur(6px);
  animation: heroWordIn 0.8s var(--ease-out) forwards;
  animation-delay: calc(0.2s + var(--d, 0) * 0.09s);
}

@keyframes heroWordIn {
  to { opacity: 1; transform: translateY(0); filter: blur(0); }
}

.hero-cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-top: var(--space-5);
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2) var(--space-5);
  margin-top: var(--space-7);
  padding-top: var(--space-4);
  border-top: 1px solid var(--color-border);
}

.hero-meta-item {
  display: flex;
  align-items: baseline;
  gap: 0.55rem;
  font-size: var(--text-xs);
  color: var(--color-text-tertiary);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.hero-meta-item strong {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  color: var(--color-text-primary);
  letter-spacing: 0;
  text-transform: none;
}

/* ==========================================================================
   Logo strip
   ========================================================================== */

.logo-strip {
  padding-block: var(--space-5);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.logo-strip-label {
  font-size: var(--text-xs);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-text-tertiary);
  margin-bottom: var(--space-4);
  text-align: center;
}

.logo-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: var(--space-6);
}

.logo-row span {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  color: var(--color-text-tertiary);
  opacity: 0.7;
  transition: opacity var(--duration-base) var(--ease-out), color var(--duration-base) var(--ease-out);
}

.logo-row span:hover { opacity: 1; color: var(--color-text-secondary); }

/* ==========================================================================
   Stats
   ========================================================================== */

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

@media (min-width: 768px) {
  .stats-grid { grid-template-columns: repeat(4, 1fr); }
}

.stat-card { text-align: left; }

.stat-value {
  font-family: var(--font-display);
  font-size: var(--text-5xl);
  color: var(--color-accent-bright);
  display: flex;
  align-items: baseline;
  gap: 0.15em;
}

.stat-label {
  margin-top: 0.5rem;
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  max-width: 18ch;
}

/* ==========================================================================
   Cards / Services
   ========================================================================== */

.card-grid {
  display: grid;
  gap: var(--space-4);
  grid-template-columns: 1fr;
}

@media (min-width: 700px) {
  .card-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 1100px) {
  .card-grid.cols-4 { grid-template-columns: repeat(4, 1fr); }
  .card-grid.cols-3 { grid-template-columns: repeat(3, 1fr); }
}

.service-card {
  position: relative;
  isolation: isolate;
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  transition: transform var(--duration-base) var(--ease-out),
              border-color var(--duration-base) var(--ease-out),
              background var(--duration-base) var(--ease-out);
}

.service-card:hover {
  transform: translateY(-6px);
  border-color: var(--color-accent-dim);
  background: var(--color-bg-elevated-2);
}

/* Cursor spotlight — a soft highlight tracking the pointer, contained to
   the card via isolation so it never leaks into neighbouring cards. */
.service-card::before,
.case-card::before {
  content: '';
  position: absolute;
  inset: 0;
  z-index: -1;
  opacity: 0;
  border-radius: inherit;
  background: radial-gradient(380px circle at var(--mx, 50%) var(--my, 50%),
    rgba(245, 241, 234, 0.14), transparent 70%);
  transition: opacity var(--duration-base) var(--ease-out);
  pointer-events: none;
}

.service-card:hover::before,
.case-card:hover::before { opacity: 1; }

.service-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  display: grid;
  place-items: center;
  background: rgba(198,161,91,0.1);
  color: var(--color-accent);
  margin-bottom: var(--space-4);
  transition: transform var(--duration-base) var(--ease-out);
}

.service-icon svg { width: 24px; height: 24px; }

.service-card:hover .service-icon { transform: scale(1.08) rotate(-4deg); }

.service-card h3 { font-size: var(--text-xl); margin-bottom: 0.75rem; }

.service-card p {
  color: var(--color-text-secondary);
  font-size: var(--text-sm);
  line-height: 1.7;
}

.service-list {
  margin-top: var(--space-3);
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
}

.service-list li {
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
  font-size: var(--text-xs);
  color: var(--color-text-tertiary);
}

.service-list svg { width: 14px; height: 14px; margin-top: 3px; color: var(--color-accent); flex-shrink: 0; }

/* ==========================================================================
   Process
   ========================================================================== */

.process-list {
  display: grid;
  gap: var(--space-5);
  counter-reset: step;
}

@media (min-width: 900px) {
  .process-list { grid-template-columns: repeat(4, 1fr); gap: var(--space-4); }
}

.process-step {
  position: relative;
  padding-top: var(--space-5);
  border-top: 1px solid var(--color-border-strong);
}

.process-step::before {
  counter-increment: step;
  content: '0' counter(step);
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  color: var(--color-accent);
  display: block;
  margin-bottom: var(--space-2);
}

.process-step h3 { font-size: var(--text-lg); margin-bottom: 0.6rem; }
.process-step p { color: var(--color-text-secondary); font-size: var(--text-sm); }

/* ==========================================================================
   Case studies
   ========================================================================== */

.case-card {
  position: relative;
  isolation: isolate;
  display: block;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-border);
  background: var(--color-bg-elevated);
  transition: transform var(--duration-base) var(--ease-out), border-color var(--duration-base) var(--ease-out);
}

.case-card:hover { transform: translateY(-6px); border-color: var(--color-accent-dim); }

.case-media {
  aspect-ratio: 16/10;
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: flex-end;
  padding: var(--space-4);
}

.case-media::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(155deg, var(--mesh-a, #2A2416), var(--mesh-b, #14120D));
}

.case-media::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 20% 30%, rgba(245,241,234,0.08), transparent 45%),
    radial-gradient(circle at 80% 80%, rgba(198,161,91,0.28), transparent 50%);
}

.case-tag {
  position: relative;
  z-index: 1;
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-bg);
  background: var(--color-accent-bright);
  padding: 0.35rem 0.85rem;
  border-radius: var(--radius-full);
  font-weight: 600;
}

.case-body { padding: var(--space-4); }

.case-body .case-result {
  font-family: var(--font-display);
  color: var(--color-accent-bright);
  font-size: var(--text-2xl);
  margin-bottom: 0.5rem;
}

.case-body h3 { font-size: var(--text-xl); margin-bottom: 0.5rem; }
.case-body p { color: var(--color-text-secondary); font-size: var(--text-sm); margin-bottom: var(--space-3); }

/* ==========================================================================
   Testimonial
   ========================================================================== */

.testimonial {
  position: relative;
  padding: var(--space-6);
  border-radius: var(--radius-lg);
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
}

.testimonial svg.quote-mark {
  width: 40px; height: 40px;
  color: var(--color-accent-dim);
  margin-bottom: var(--space-3);
}

.testimonial blockquote {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  line-height: 1.45;
  color: var(--color-text-primary);
  margin-bottom: var(--space-4);
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.author-avatar {
  width: 46px; height: 46px;
  border-radius: 50%;
  background: linear-gradient(155deg, var(--color-accent-bright), var(--color-accent-dim));
  display: grid;
  place-items: center;
  font-family: var(--font-display);
  color: var(--color-on-accent);
  font-weight: 600;
}

.author-name { font-size: var(--text-sm); font-weight: 600; }
.author-role { font-size: var(--text-xs); color: var(--color-text-tertiary); }

/* ==========================================================================
   Differentiators
   ========================================================================== */

.diff-list {
  display: grid;
  gap: var(--space-4);
  grid-template-columns: 1fr;
}

@media (min-width: 768px) {
  .diff-list { grid-template-columns: repeat(2, 1fr); }
}

.diff-item {
  display: flex;
  gap: var(--space-3);
  padding-block: var(--space-3);
  border-bottom: 1px solid var(--color-border);
}

.diff-icon {
  width: 40px; height: 40px;
  flex-shrink: 0;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border-strong);
  display: grid;
  place-items: center;
  color: var(--color-accent);
}

.diff-icon svg { width: 18px; height: 18px; }

.diff-item h3 { font-size: var(--text-base); margin-bottom: 0.3rem; font-weight: 600; font-family: var(--font-body); }
.diff-item p { font-size: var(--text-sm); color: var(--color-text-secondary); }

/* ==========================================================================
   CTA banner
   ========================================================================== */

.cta-banner {
  border-radius: var(--radius-lg);
  padding: var(--space-7) var(--space-5);
  text-align: center;
  position: relative;
  overflow: hidden;
  border: 1px solid var(--color-border-strong);
  background: var(--color-bg-elevated);
}

.cta-banner::before {
  content: '';
  position: absolute;
  z-index: 0;
  inset: -40%;
  background: radial-gradient(circle at center, rgba(198,161,91,0.16), transparent 60%);
}

.cta-banner > * { position: relative; z-index: 1; }

.cta-banner h2 { font-size: var(--text-4xl); margin-bottom: var(--space-2); }

.cta-banner .lede { margin-inline: auto; margin-bottom: var(--space-5); }

.cta-banner .hero-cta-row { justify-content: center; margin-top: 0; }

/* ==========================================================================
   Footer
   ========================================================================== */

.site-footer {
  border-top: 1px solid var(--color-border);
  padding-block: var(--space-6) var(--space-4);
}

.footer-grid {
  display: grid;
  gap: var(--space-5);
  grid-template-columns: 1fr;
  padding-bottom: var(--space-6);
}

@media (min-width: 768px) {
  .footer-grid { grid-template-columns: 1.5fr 1fr 1fr 1fr; }
}

.footer-brand p {
  color: var(--color-text-secondary);
  font-size: var(--text-sm);
  margin-top: var(--space-2);
  max-width: 28ch;
}

.footer-col h4 {
  font-size: var(--text-xs);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-tertiary);
  margin-bottom: var(--space-3);
}

.footer-col ul { display: flex; flex-direction: column; gap: 0.65rem; }

.footer-col a {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  transition: color var(--duration-base) var(--ease-out);
}

.footer-col a:hover { color: var(--color-accent-bright); }

.footer-bottom {
  display: flex;
  flex-direction: column-reverse;
  gap: var(--space-2);
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-4);
  border-top: 1px solid var(--color-border);
  font-size: var(--text-xs);
  color: var(--color-text-tertiary);
}

@media (min-width: 640px) {
  .footer-bottom { flex-direction: row; }
}

.footer-social { display: flex; gap: var(--space-2); }

.footer-social a {
  width: 36px; height: 36px;
  border: 1px solid var(--color-border-strong);
  border-radius: 50%;
  display: grid;
  place-items: center;
  transition: border-color var(--duration-base) var(--ease-out), color var(--duration-base) var(--ease-out);
}

.footer-social svg { width: 16px; height: 16px; }
.footer-social a:hover { border-color: var(--color-accent); color: var(--color-accent-bright); }

/* ==========================================================================
   Reveal-on-scroll
   ========================================================================== */

[data-reveal] {
  opacity: 0;
  transform: translateY(18px);
  filter: blur(5px);
  transition: opacity var(--duration-slow) var(--ease-out),
              transform var(--duration-slow) var(--ease-out),
              filter var(--duration-slow) var(--ease-out);
}

[data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
  filter: blur(0);
}

[data-reveal-group] > * { transition-delay: calc(var(--i, 0) * 70ms); }

@media (prefers-reduced-motion: reduce) {
  [data-reveal] { opacity: 1; transform: none; filter: none; }
}

/* ==========================================================================
   Section depth — restrained, static ambient glows that break up the
   repeated flat-black rhythm between sections without adding motion.
   ========================================================================== */

.section-glow {
  position: absolute;
  z-index: 0;
  border-radius: 50%;
  filter: blur(110px);
  pointer-events: none;
  opacity: 0.5;
}

.section-glow.tr {
  top: -10%; right: -8%;
  width: 46%; aspect-ratio: 1;
  background: radial-gradient(circle, rgba(198, 161, 91, 0.30), transparent 70%);
}

.section-glow.bl {
  bottom: -12%; left: -10%;
  width: 42%; aspect-ratio: 1;
  background: radial-gradient(circle, rgba(198, 161, 91, 0.22), transparent 70%);
}

.section-glow.center {
  top: 20%; left: 50%; transform: translateX(-50%);
  width: 55%; aspect-ratio: 1;
  background: radial-gradient(circle, rgba(198, 161, 91, 0.16), transparent 70%);
}

.section > .container { position: relative; z-index: 1; }

/* ==========================================================================
   Case study template specific
   ========================================================================== */

.cs-hero-media {
  aspect-ratio: 21/9;
  border-radius: var(--radius-lg);
  position: relative;
  overflow: hidden;
  border: 1px solid var(--color-border);
  margin-top: var(--space-6);
}

.cs-hero-media::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(155deg, #2A2416, #14120D);
}

.cs-hero-media::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 25% 25%, rgba(245,241,234,0.08), transparent 45%),
    radial-gradient(circle at 75% 75%, rgba(198,161,91,0.3), transparent 55%);
}

.cs-meta-grid {
  display: grid;
  gap: var(--space-4);
  grid-template-columns: repeat(2, 1fr);
  padding: var(--space-5) 0;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  margin-block: var(--space-6);
}

@media (min-width: 768px) {
  .cs-meta-grid { grid-template-columns: repeat(4, 1fr); }
}

.cs-meta-item h4 {
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-text-tertiary);
  margin-bottom: 0.5rem;
}

.cs-meta-item p { font-family: var(--font-display); font-size: var(--text-lg); }

.cs-body-grid {
  display: grid;
  gap: var(--space-6);
  grid-template-columns: 1fr;
}

@media (min-width: 900px) {
  .cs-body-grid { grid-template-columns: 2fr 1fr; }
}

.cs-block { margin-bottom: var(--space-6); }
.cs-block h2 { font-size: var(--text-3xl); margin-bottom: var(--space-3); }
.cs-block p { color: var(--color-text-secondary); margin-bottom: var(--space-2); }

.cs-sidebar-card {
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  margin-bottom: var(--space-4);
}

.cs-sidebar-card h4 {
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-text-tertiary);
  margin-bottom: var(--space-3);
}

.cs-stack-tags { display: flex; flex-wrap: wrap; gap: 0.5rem; }

.cs-stack-tags span {
  font-size: var(--text-xs);
  padding: 0.4rem 0.8rem;
  border-radius: var(--radius-full);
  border: 1px solid var(--color-border-strong);
  color: var(--color-text-secondary);
}

.cs-nav-split {
  display: flex;
  justify-content: space-between;
  gap: var(--space-3);
  padding-top: var(--space-6);
  border-top: 1px solid var(--color-border);
}

.cs-nav-link {
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-tertiary);
}

.cs-nav-link strong {
  display: block;
  font-family: var(--font-display);
  font-size: var(--text-xl);
  color: var(--color-text-primary);
  text-transform: none;
  letter-spacing: 0;
  margin-top: 0.4rem;
}

/* Utility */
.text-right { text-align: right; }
.mt-0 { margin-top: 0 !important; }