/* =============================================
   kornel.tech — Design System v2
   Dark theme, visual, animated
   ============================================= */

@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;600;700&family=Inter:wght@300;400;500;600&family=JetBrains+Mono:wght@400;500&display=swap');

:root {
  --bg: #09090b;
  --bg-subtle: #0f0f13;
  --surface: #141418;
  --surface-2: #1c1c22;
  --surface-3: #25252d;
  --border: rgba(255,255,255,0.07);
  --border-hover: rgba(255,255,255,0.14);

  --text: #f0f0f2;
  --text-secondary: #a0a0aa;
  --text-muted: #5c5c66;

  --blue: #3b82f6;
  --blue-light: #60a5fa;
  --blue-dim: #2563eb;
  --blue-glow: rgba(59,130,246,0.10);
  --blue-glow-strong: rgba(59,130,246,0.25);
  --violet: #8b5cf6;
  --violet-glow: rgba(139,92,246,0.12);
  --gradient: linear-gradient(135deg, #3b82f6, #8b5cf6);
  --gradient-text: linear-gradient(135deg, #60a5fa, #a78bfa);
  --green: #22c55e;
  --amber: #f59e0b;
  --red: #ef4444;
  --cyan: #06b6d4;

  --font-display: 'Space Grotesk', sans-serif;
  --font-body: 'Inter', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  --text-display: clamp(2.5rem, 6vw, 4.5rem);
  --text-h1: clamp(2rem, 4.5vw, 3.25rem);
  --text-h2: clamp(1.5rem, 3vw, 2.25rem);
  --text-h3: clamp(1.15rem, 1.6vw, 1.375rem);
  --text-body: 1rem;
  --text-body-lg: 1.125rem;
  --text-sm: 0.875rem;
  --text-xs: 0.8125rem;
  --text-overline: 0.75rem;

  --s1: 0.25rem; --s2: 0.5rem; --s3: 0.75rem; --s4: 1rem;
  --s5: 1.5rem; --s6: 2rem; --s7: 3rem; --s8: 4rem;
  --s9: 6rem; --s10: 8rem;

  --max-w: 1200px;
  --narrow: 800px;
  --header-h: 4rem;
  --gap: clamp(1.25rem, 2.5vw, 2rem);

  --radius: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --shadow: 0 4px 24px rgba(0,0,0,0.3);
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
  --dur: 300ms;
  --dur-slow: 600ms;
}

/* --- Reset --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: calc(var(--header-h) + 2rem); }

body {
  font-family: var(--font-body); font-size: var(--text-body);
  line-height: 1.7; color: var(--text); background: var(--bg);
  -webkit-font-smoothing: antialiased; overflow-x: hidden;
}

img, svg { display: block; max-width: 100%; }
input, button, textarea, select { font: inherit; color: inherit; }
button { cursor: pointer; border: none; background: none; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
h1, h2, h3, h4 { font-family: var(--font-display); line-height: 1.15; font-weight: 600; text-wrap: balance; }
p { text-wrap: pretty; }

.skip-link { position: absolute; top: -100%; left: var(--s4); z-index: 999; padding: var(--s3) var(--s5); background: var(--blue); color: #fff; font-size: var(--text-sm); font-weight: 600; border-radius: 0 0 var(--radius) var(--radius); transition: top var(--dur) var(--ease); }
.skip-link:focus { top: 0; }
:focus-visible { outline: 2px solid var(--blue); outline-offset: 3px; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }

/* --- Layout --- */
.container { width: 100%; max-width: var(--max-w); margin: 0 auto; padding: 0 var(--s5); }
.container--narrow { max-width: var(--narrow); }
.section { padding: var(--s9) 0; }
.section--surface { background: var(--surface); }
.grid { display: grid; gap: var(--gap); }
.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--sidebar { grid-template-columns: 1fr 380px; }

@media (max-width: 1024px) { .grid--3 { grid-template-columns: repeat(2, 1fr); } .grid--sidebar { grid-template-columns: 1fr; } }
@media (max-width: 640px) { .grid--2, .grid--3 { grid-template-columns: 1fr; } .section { padding: var(--s8) 0; } }

/* --- Utilities --- */
.text-center { text-align: center; }
.mb-4 { margin-bottom: var(--s4); }
.mb-5 { margin-bottom: var(--s5); }
.mb-6 { margin-bottom: var(--s6); }
.mb-7 { margin-bottom: var(--s7); }
.mb-8 { margin-bottom: var(--s8); }

.overline { font-family: var(--font-mono); font-size: var(--text-overline); font-weight: 500; letter-spacing: 0.15em; text-transform: uppercase; color: var(--blue-light); }
.lead { font-size: var(--text-body-lg); color: var(--text-secondary); line-height: 1.75; }

.gradient-text {
  background: var(--gradient-text);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
}

.divider { border: none; border-top: 1px solid var(--border); margin: var(--s6) 0; }

/* --- Header --- */
.header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 200;
  height: var(--header-h);
  background: rgba(9,9,11,0.8);
  backdrop-filter: blur(16px) saturate(180%);
  border-bottom: 1px solid transparent;
  transition: border-color var(--dur);
}

.header__inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 100%; max-width: var(--max-w); margin: 0 auto; padding: 0 var(--s5);
}

.logo { font-family: var(--font-mono); font-size: 1.125rem; font-weight: 500; color: var(--text); letter-spacing: -0.02em; }
.logo__dot { color: var(--blue); }

.nav { display: flex; align-items: center; gap: var(--s5); }
.nav__list { display: flex; align-items: center; gap: var(--s1); }

.nav__link {
  padding: var(--s2) var(--s3); font-size: var(--text-sm); font-weight: 500;
  color: var(--text-secondary); border-radius: var(--radius);
  transition: color var(--dur), background var(--dur);
}

.nav__link:hover, .nav__link[aria-current="page"] { color: var(--text); background: rgba(255,255,255,0.05); }

@media (max-width: 768px) { .nav { display: none; } }

.menu-toggle { display: none; flex-direction: column; justify-content: center; gap: 5px; width: 36px; height: 36px; padding: 6px; }
.menu-toggle__bar { display: block; width: 100%; height: 2px; background: var(--text); border-radius: 2px; transition: transform var(--dur) var(--ease), opacity 150ms; }
.menu-toggle[aria-expanded="true"] .menu-toggle__bar:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.menu-toggle[aria-expanded="true"] .menu-toggle__bar:nth-child(2) { opacity: 0; }
.menu-toggle[aria-expanded="true"] .menu-toggle__bar:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
@media (max-width: 768px) { .menu-toggle { display: flex; } }

.mobile-menu { position: fixed; inset: 0; z-index: 199; background: rgba(9,9,11,0.97); backdrop-filter: blur(24px); display: flex; flex-direction: column; justify-content: center; padding: var(--s8) var(--s6); opacity: 0; visibility: hidden; transition: opacity var(--dur) var(--ease), visibility var(--dur); }
.mobile-menu[aria-hidden="false"] { opacity: 1; visibility: visible; }
.mobile-menu__list { display: flex; flex-direction: column; gap: var(--s3); }
.mobile-menu__link { display: block; font-family: var(--font-display); font-size: 2rem; font-weight: 600; padding: var(--s3) 0; color: var(--text-secondary); opacity: 0; transform: translateY(12px); transition: opacity var(--dur) var(--ease), transform var(--dur) var(--ease), color 150ms; }
.mobile-menu[aria-hidden="false"] .mobile-menu__link { opacity: 1; transform: translateY(0); }
.mobile-menu__link:hover, .mobile-menu__link[aria-current="page"] { color: var(--text); }
.mobile-menu__contact { margin-top: var(--s7); padding-top: var(--s5); border-top: 1px solid var(--border); display: flex; flex-direction: column; gap: var(--s2); }
.mobile-menu__contact a { font-size: var(--text-body-lg); color: var(--blue-light); }

/* --- Buttons --- */
.btn { display: inline-flex; align-items: center; gap: var(--s2); font-family: var(--font-body); font-weight: 600; font-size: var(--text-sm); line-height: 1; border-radius: var(--radius); white-space: nowrap; transition: all 200ms var(--ease); }
.btn--primary { padding: 0.75rem 1.5rem; background: var(--blue); color: #fff; }
.btn--primary:hover { background: var(--blue-dim); box-shadow: 0 0 24px var(--blue-glow-strong); transform: translateY(-1px); }
.btn--secondary { padding: 0.75rem 1.5rem; background: transparent; color: var(--text); border: 1px solid var(--border-hover); }
.btn--secondary:hover { border-color: var(--text-muted); background: rgba(255,255,255,0.03); }
.btn--ghost { padding: 0.5rem 0; color: var(--blue-light); }
.btn--ghost:hover { color: var(--text); }
.btn--lg { padding: 0.875rem 2rem; font-size: var(--text-body); }
.btn--sm { padding: 0.5rem 1rem; font-size: var(--text-xs); }
.btn__arrow { transition: transform 200ms var(--ease); }
.btn:hover .btn__arrow { transform: translateX(3px); }

/* ===========================
   HERO
   =========================== */
.hero {
  position: relative;
  padding: calc(var(--header-h) + var(--s9)) 0 var(--s9);
  min-height: 100vh;
  display: flex; align-items: center;
  overflow: hidden;
}

/* Animated gradient mesh background */
.hero__gradient-mesh {
  position: absolute; inset: 0; z-index: 0;
  overflow: hidden;
}

.hero__gradient-mesh::before,
.hero__gradient-mesh::after {
  content: '';
  position: absolute;
  border-radius: 50%;
  filter: blur(120px);
  animation: float 20s ease-in-out infinite;
}

.hero__gradient-mesh::before {
  width: 700px; height: 700px;
  top: -200px; right: -100px;
  background: radial-gradient(circle, var(--blue-glow-strong) 0%, transparent 70%);
}

.hero__gradient-mesh::after {
  width: 500px; height: 500px;
  bottom: -150px; left: -100px;
  background: radial-gradient(circle, var(--violet-glow) 0%, transparent 70%);
  animation-delay: -10s;
  animation-direction: reverse;
}

@keyframes float {
  0%, 100% { transform: translate(0, 0) scale(1); }
  25% { transform: translate(30px, -40px) scale(1.05); }
  50% { transform: translate(-20px, 20px) scale(0.95); }
  75% { transform: translate(40px, 30px) scale(1.02); }
}

.hero__grid-bg {
  position: absolute; inset: 0; z-index: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.025) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse at 50% 50%, black 20%, transparent 70%);
}

.hero__layout {
  position: relative; z-index: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--s8);
  align-items: center;
}

.hero__content { max-width: 600px; }

.hero__badge {
  display: inline-flex; align-items: center; gap: var(--s2);
  padding: var(--s2) var(--s4);
  background: var(--surface-2); border: 1px solid var(--border);
  border-radius: 100px;
  font-family: var(--font-mono); font-size: var(--text-xs);
  color: var(--text-secondary); margin-bottom: var(--s6);
}

.hero__badge-dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--green); box-shadow: 0 0 8px var(--green);
  animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot { 0%, 100% { opacity: 1; } 50% { opacity: 0.4; } }

.hero__title {
  font-size: var(--text-display); font-weight: 700;
  letter-spacing: -0.03em; margin-bottom: var(--s5); line-height: 1.05;
}

.hero__description {
  font-size: var(--text-body-lg); color: var(--text-secondary);
  line-height: 1.8; margin-bottom: var(--s7); max-width: 500px;
}

.hero__actions { display: flex; align-items: center; gap: var(--s4); flex-wrap: wrap; }

/* Terminal mockup */
.terminal {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 24px 64px rgba(0,0,0,0.4), 0 0 0 1px rgba(255,255,255,0.05);
  transform: perspective(1200px) rotateY(-6deg) rotateX(2deg);
  transition: transform 0.6s var(--ease);
}

.terminal:hover {
  transform: perspective(1200px) rotateY(-2deg) rotateX(1deg);
}

.terminal__header {
  display: flex; align-items: center; gap: 6px;
  padding: 12px 16px;
  background: var(--surface-2);
  border-bottom: 1px solid var(--border);
}

.terminal__dot {
  width: 10px; height: 10px; border-radius: 50%;
}

.terminal__dot--red { background: #ff5f57; }
.terminal__dot--yellow { background: #febc2e; }
.terminal__dot--green { background: #28c840; }

.terminal__title {
  flex: 1; text-align: center;
  font-family: var(--font-mono); font-size: 11px;
  color: var(--text-muted);
}

.terminal__body {
  padding: 20px;
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.9;
  color: var(--text-secondary);
  min-height: 280px;
}

.terminal__line {
  opacity: 0;
  animation: terminalType 0.4s var(--ease) forwards;
}

.terminal__prompt { color: var(--green); }
.terminal__cmd { color: var(--text); }
.terminal__flag { color: var(--cyan); }
.terminal__output { color: var(--text-muted); }
.terminal__success { color: var(--green); }
.terminal__url { color: var(--blue-light); }
.terminal__comment { color: var(--text-muted); font-style: italic; }

@keyframes terminalType {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: translateY(0); }
}

.terminal__cursor {
  display: inline-block;
  width: 8px; height: 16px;
  background: var(--blue);
  vertical-align: middle;
  animation: blink 1s step-end infinite;
}

@keyframes blink { 0%, 100% { opacity: 1; } 50% { opacity: 0; } }

/* Terminal glow */
.terminal__glow {
  position: absolute;
  width: 300px; height: 300px;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  background: radial-gradient(circle, var(--blue-glow) 0%, transparent 70%);
  pointer-events: none;
  z-index: -1;
  filter: blur(40px);
}

@media (max-width: 960px) {
  .hero { min-height: auto; padding: calc(var(--header-h) + var(--s8)) 0 var(--s8); }
  .hero__layout { grid-template-columns: 1fr; }
  .terminal { transform: none; max-width: 500px; }
  .terminal:hover { transform: none; }
}

/* ===========================
   SERVICE CARDS (enhanced)
   =========================== */
.service-card {
  position: relative;
  display: flex; flex-direction: column;
  padding: var(--s6);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: all var(--dur) var(--ease);
  overflow: hidden;
}

/* Animated gradient border on hover */
.service-card::before {
  content: '';
  position: absolute; top: -1px; left: -1px; right: -1px; bottom: -1px;
  background: var(--gradient);
  border-radius: inherit;
  opacity: 0;
  transition: opacity 0.4s;
  z-index: -1;
}

.service-card::after {
  content: '';
  position: absolute; top: 0; left: 0; right: 0; bottom: 0;
  background: var(--surface);
  border-radius: calc(var(--radius-lg) - 1px);
  z-index: -1;
}

.service-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 48px rgba(0,0,0,0.3);
}

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

.service-card__image {
  width: 100%; height: 140px;
  margin: calc(-1 * var(--s6)) calc(-1 * var(--s6)) var(--s5);
  width: calc(100% + var(--s6) * 2);
  overflow: hidden;
}

.service-card__image img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.6s var(--ease);
}

.service-card:hover .service-card__image img {
  transform: scale(1.05);
}

.service-card__icon {
  width: 44px; height: 44px;
  display: flex; align-items: center; justify-content: center;
  background: var(--blue-glow); border: 1px solid rgba(59,130,246,0.15);
  border-radius: var(--radius); color: var(--blue-light);
  margin-bottom: var(--s5);
  transition: box-shadow 0.4s;
}

.service-card:hover .service-card__icon {
  box-shadow: 0 0 20px var(--blue-glow-strong);
}

.service-card__title { font-size: var(--text-h3); margin-bottom: var(--s3); }
.service-card__description { font-size: var(--text-sm); color: var(--text-secondary); line-height: 1.7; flex: 1; }

.service-card__link {
  display: inline-flex; align-items: center; gap: var(--s2);
  margin-top: var(--s5); font-size: var(--text-sm); font-weight: 500;
  color: var(--blue-light); transition: color 150ms, gap 200ms;
}

.service-card:hover .service-card__link { color: var(--text); gap: var(--s3); }

/* ===========================
   STATS SECTION
   =========================== */
.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--gap);
}

.stat {
  text-align: center;
  padding: var(--s6) var(--s4);
}

.stat__number {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 5vw, 3.5rem);
  font-weight: 700;
  line-height: 1;
  margin-bottom: var(--s3);
  background: var(--gradient-text);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat__label {
  font-size: var(--text-sm);
  color: var(--text-muted);
}

@media (max-width: 768px) { .stats { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 480px) { .stats { grid-template-columns: 1fr; } }

/* ===========================
   MARQUEE
   =========================== */
.marquee {
  overflow: hidden;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: var(--s5) 0;
  background: var(--surface);
}

.marquee__track {
  display: flex;
  gap: var(--s8);
  animation: marquee 30s linear infinite;
  width: max-content;
}

.marquee__item {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--text-muted);
  white-space: nowrap;
  display: flex; align-items: center; gap: var(--s3);
}

.marquee__item::before {
  content: '';
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--blue);
  opacity: 0.4;
  flex-shrink: 0;
}

@keyframes marquee {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

/* ===========================
   IMAGE SECTIONS
   =========================== */
.image-section {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--gap);
  align-items: center;
}

.image-section--reverse { direction: rtl; }
.image-section--reverse > * { direction: ltr; }

.image-section__visual {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  aspect-ratio: 16/10;
}

.image-section__visual img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.8s var(--ease);
}

.image-section__visual:hover img {
  transform: scale(1.03);
}

/* Gradient overlay on images */
.image-section__visual::after {
  content: '';
  position: absolute; inset: 0;
  background: linear-gradient(135deg, rgba(59,130,246,0.1) 0%, rgba(139,92,246,0.05) 100%);
  pointer-events: none;
}

/* Glow behind image */
.image-section__visual::before {
  content: '';
  position: absolute;
  inset: -20px;
  background: radial-gradient(circle at 50% 50%, var(--blue-glow) 0%, transparent 70%);
  z-index: -1;
  filter: blur(30px);
  opacity: 0;
  transition: opacity 0.6s;
}

.image-section__visual:hover::before { opacity: 1; }

@media (max-width: 768px) {
  .image-section, .image-section--reverse { grid-template-columns: 1fr; direction: ltr; }
}

/* ===========================
   APPROACH SECTION
   =========================== */
.approach-grid {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: var(--gap); counter-reset: approach;
}

.approach-item {
  counter-increment: approach;
  padding: var(--s5);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: border-color 0.4s, box-shadow 0.4s;
}

.approach-item:hover {
  border-color: var(--border-hover);
  box-shadow: 0 0 30px rgba(59,130,246,0.05);
}

.approach-item::before {
  content: counter(approach, decimal-leading-zero);
  display: block; font-family: var(--font-mono); font-size: var(--text-xs);
  color: var(--blue); margin-bottom: var(--s4);
}

.approach-item__title { font-size: var(--text-h3); margin-bottom: var(--s3); }
.approach-item__text { font-size: var(--text-sm); color: var(--text-secondary); line-height: 1.7; }

@media (max-width: 768px) { .approach-grid { grid-template-columns: 1fr; } }

/* ===========================
   CTA
   =========================== */
.cta { text-align: center; max-width: 640px; margin: 0 auto; padding: var(--s9) 0; }
.cta__title { font-size: var(--text-h2); margin-bottom: var(--s4); }
.cta__text { font-size: var(--text-body-lg); color: var(--text-secondary); margin-bottom: var(--s7); }
.cta__actions { display: flex; justify-content: center; gap: var(--s4); flex-wrap: wrap; }

.cta-box {
  position: relative; padding: var(--s8);
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius-xl); text-align: center; overflow: hidden;
}

.cta-box::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 2px; background: var(--gradient); }

.cta-box__glow {
  position: absolute; top: -200px; left: 50%; transform: translateX(-50%);
  width: 500px; height: 400px;
  background: radial-gradient(circle, var(--blue-glow) 0%, transparent 70%);
  pointer-events: none;
}

/* ===========================
   SERVICE DETAIL (services page)
   =========================== */
.service-detail { padding: var(--s7) 0; border-bottom: 1px solid var(--border); }
.service-detail:last-of-type { border-bottom: none; }

.service-detail__number { font-family: var(--font-mono); font-size: var(--text-xs); color: var(--blue); letter-spacing: 0.1em; margin-bottom: var(--s4); }
.service-detail__title { font-size: var(--text-h2); margin-bottom: var(--s4); }
.service-detail__body { font-size: var(--text-body-lg); color: var(--text-secondary); margin-bottom: var(--s5); max-width: 640px; line-height: 1.8; }

.service-detail__tags { display: flex; flex-wrap: wrap; gap: var(--s2); margin-bottom: var(--s5); }

.service-detail__tag {
  padding: var(--s2) var(--s3);
  background: var(--surface-2); border: 1px solid var(--border);
  border-radius: 100px; font-family: var(--font-mono); font-size: var(--text-xs);
  color: var(--text-secondary);
  transition: border-color 0.3s, color 0.3s;
}

.service-detail__tag:hover {
  border-color: var(--blue); color: var(--blue-light);
}

/* ===========================
   PAGE HERO
   =========================== */
.page-hero { padding: calc(var(--header-h) + var(--s8)) 0 var(--s7); border-bottom: 1px solid var(--border); }
.page-hero__breadcrumb { display: flex; align-items: center; gap: var(--s2); font-family: var(--font-mono); font-size: var(--text-xs); color: var(--text-muted); margin-bottom: var(--s5); }
.page-hero__breadcrumb a { color: var(--blue-light); }
.page-hero__breadcrumb a:hover { text-decoration: underline; }
.page-hero__title { font-size: var(--text-h1); margin-bottom: var(--s4); }
.page-hero__description { font-size: var(--text-body-lg); color: var(--text-secondary); max-width: 600px; }

/* ===========================
   FORM
   =========================== */
.form-group { margin-bottom: var(--s5); }
.form-label { display: block; font-size: var(--text-sm); font-weight: 500; margin-bottom: var(--s2); color: var(--text-secondary); }
.form-label--required::after { content: ' *'; color: var(--red); }

.form-input, .form-select, .form-textarea {
  width: 100%; padding: 0.75rem 1rem;
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); color: var(--text); font-size: var(--text-body);
  transition: border-color 150ms, box-shadow 150ms;
}

.form-input::placeholder, .form-textarea::placeholder { color: var(--text-muted); }
.form-input:focus, .form-select:focus, .form-textarea:focus { outline: none; border-color: var(--blue); box-shadow: 0 0 0 3px var(--blue-glow); }
.form-input[aria-invalid="true"], .form-textarea[aria-invalid="true"] { border-color: var(--red); }
.form-textarea { min-height: 140px; resize: vertical; }
.form-select { appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 16 16'%3E%3Cpath d='M4 6l4 4 4-4' fill='none' stroke='%235c5c66' stroke-width='1.5' stroke-linecap='round'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 1rem center; padding-right: 2.5rem; }
.form-checkbox { display: flex; align-items: flex-start; gap: var(--s3); font-size: var(--text-sm); color: var(--text-secondary); cursor: pointer; }
.form-checkbox input[type="checkbox"] { width: 18px; height: 18px; margin-top: 2px; accent-color: var(--blue); flex-shrink: 0; }
.form-error { font-size: var(--text-xs); color: var(--red); margin-top: var(--s2); }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: var(--s5); }
@media (max-width: 640px) { .form-grid { grid-template-columns: 1fr; } }

/* ===========================
   CONTACT INFO
   =========================== */
.contact-info { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: var(--s6); }
.contact-info__section { margin-bottom: var(--s5); }
.contact-info__section:last-child { margin-bottom: 0; }
.contact-info__label { font-family: var(--font-mono); font-size: var(--text-xs); letter-spacing: 0.1em; text-transform: uppercase; color: var(--text-muted); margin-bottom: var(--s3); }
.contact-info__text { font-size: var(--text-body); color: var(--text-secondary); line-height: 1.8; }
.contact-info__text a { color: var(--blue-light); }
.contact-info__text a:hover { text-decoration: underline; }

/* ===========================
   FOOTER
   =========================== */
.footer { border-top: 1px solid var(--border); padding: var(--s8) 0 var(--s6); }
.footer__top { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1fr; gap: var(--gap); padding-bottom: var(--s7); border-bottom: 1px solid var(--border); }
.footer__brand { font-size: var(--text-sm); color: var(--text-muted); margin-top: var(--s4); max-width: 260px; line-height: 1.7; }
.footer__heading { font-family: var(--font-mono); font-size: var(--text-xs); letter-spacing: 0.1em; text-transform: uppercase; color: var(--text-muted); margin-bottom: var(--s4); }
.footer__list { display: flex; flex-direction: column; gap: var(--s2); }
.footer__link { font-size: var(--text-sm); color: var(--text-muted); transition: color 150ms; }
a.footer__link:hover { color: var(--text); }
.footer__bottom { display: flex; justify-content: space-between; align-items: center; padding-top: var(--s5); flex-wrap: wrap; gap: var(--s4); }
.footer__copy { font-size: var(--text-xs); color: var(--text-muted); }
.footer__legal { display: flex; gap: var(--s5); }
.footer__legal a { font-size: var(--text-xs); color: var(--text-muted); transition: color 150ms; }
.footer__legal a:hover { color: var(--text-secondary); }

@media (max-width: 768px) { .footer__top { grid-template-columns: 1fr 1fr; } .footer__bottom { flex-direction: column; align-items: flex-start; } }
@media (max-width: 480px) { .footer__top { grid-template-columns: 1fr; } }

/* --- Misc --- */
.back-to-top { position: fixed; bottom: var(--s5); right: var(--s5); z-index: 100; width: 40px; height: 40px; display: flex; align-items: center; justify-content: center; background: var(--surface-2); border: 1px solid var(--border); border-radius: 50%; color: var(--text-muted); opacity: 0; visibility: hidden; transform: translateY(8px); transition: all var(--dur) var(--ease); }
.back-to-top--visible { opacity: 1; visibility: visible; transform: translateY(0); }
.back-to-top:hover { color: var(--blue-light); border-color: var(--blue); }

/* ===========================
   SCROLL REVEAL (enhanced)
   =========================== */
.reveal {
  opacity: 0; transform: translateY(28px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}

.reveal--visible { opacity: 1; transform: translateY(0) !important; }

.reveal--left { transform: translateX(-40px); }
.reveal--right { transform: translateX(40px); }
.reveal--scale { transform: scale(0.95); }

.reveal--d1 { transition-delay: 80ms; }
.reveal--d2 { transition-delay: 160ms; }
.reveal--d3 { transition-delay: 240ms; }
.reveal--d4 { transition-delay: 320ms; }
.reveal--d5 { transition-delay: 400ms; }
.reveal--d6 { transition-delay: 480ms; }

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none !important; transition: none; }
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; scroll-behavior: auto !important; }
}