/* =========================================
   ROZKODOWANI — styles.css
   Mobile-first, CSS custom properties
   ========================================= */

/* --- Google Fonts --- */
@import url('https://fonts.googleapis.com/css2?family=Syne:wght@400;600;700;800&family=DM+Sans:ital,opsz,wght@0,9..40,300;0,9..40,400;0,9..40,500;0,9..40,600;1,9..40,400&display=swap');

/* =========================================
   CUSTOM PROPERTIES
   ========================================= */
:root {
  /* Colors */
  --clr-bg-dark:     #0D1B2A;
  --clr-bg-darker:   #080f18;
  --clr-bg-light:    #F8F9FB;
  --clr-text-light:  #F5F5F0;
  --clr-text-muted:  #9AACBB;
  --clr-text-dark:   #0D1B2A;
  --clr-accent:      #00C9A7;
  --clr-accent-dim:  rgba(0, 201, 167, 0.15);
  --clr-accent-hover:#00b396;
  --clr-border-dark: rgba(255,255,255,0.08);
  --clr-border-light: rgba(13,27,42,0.12);
  --clr-card-dark:   #112233;
  --clr-card-light:  #ffffff;

  /* Typography */
  --font-heading: 'Syne', sans-serif;
  --font-body:    'DM Sans', sans-serif;

  /* Font sizes (fluid, mobile-first) */
  --fs-xs:   0.75rem;
  --fs-sm:   0.875rem;
  --fs-base: 1rem;
  --fs-md:   1.125rem;
  --fs-lg:   1.25rem;
  --fs-xl:   1.5rem;
  --fs-2xl:  2rem;
  --fs-3xl:  2.5rem;
  --fs-4xl:  3.25rem;
  --fs-5xl:  4.5rem;

  /* Spacing */
  --sp-1:  0.25rem;
  --sp-2:  0.5rem;
  --sp-3:  0.75rem;
  --sp-4:  1rem;
  --sp-5:  1.25rem;
  --sp-6:  1.5rem;
  --sp-8:  2rem;
  --sp-10: 2.5rem;
  --sp-12: 3rem;
  --sp-16: 4rem;
  --sp-20: 5rem;
  --sp-24: 6rem;
  --sp-32: 8rem;

  /* Layout */
  --max-width: 1200px;
  --gutter: 1.25rem;
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;
  --radius-xl: 24px;

  /* Transitions */
  --trans-fast: 150ms ease;
  --trans-base: 300ms ease;
  --trans-slow: 500ms ease;

  /* Shadows */
  --shadow-sm:  0 1px 3px rgba(0,0,0,0.15);
  --shadow-md:  0 4px 16px rgba(0,0,0,0.2);
  --shadow-lg:  0 8px 32px rgba(0,0,0,0.25);
  --shadow-accent: 0 4px 24px rgba(0,201,167,0.25);

  /* Header */
  --header-h: 68px;
}

@media (min-width: 768px) {
  :root {
    --gutter: 2rem;
    --header-h: 76px;
  }
}

@media (min-width: 1280px) {
  :root {
    --gutter: 3rem;
    --fs-5xl: 5.5rem;
  }
}

/* =========================================
   RESET & BASE
   ========================================= */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  font-size: var(--fs-base);
  line-height: 1.65;
  color: var(--clr-text-dark);
  background: var(--clr-bg-light);
  overflow-x: hidden;
}

img, svg { display: block; max-width: 100%; }

a {
  color: inherit;
  text-decoration: none;
}

ul, ol { list-style: none; }

button, input, select, textarea {
  font: inherit;
  border: none;
  background: none;
  outline: none;
}

button { cursor: pointer; }

h1, h2, h3, h4, h5 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
}

/* =========================================
   UTILITY CLASSES
   ========================================= */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.section-pad {
  padding-block: var(--sp-12);
}

@media (min-width: 768px) {
  .section-pad { padding-block: var(--sp-24); }
}

@media (min-width: 1280px) {
  .section-pad { padding-block: var(--sp-24); }
}

.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;
}

.text-accent { color: var(--clr-accent); }
.text-muted   { color: var(--clr-text-muted); }

/* =========================================
   BUTTONS
   ========================================= */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  padding: 0.75rem 1.75rem;
  border-radius: var(--radius-md);
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: var(--fs-sm);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  transition: transform var(--trans-fast), box-shadow var(--trans-fast), background var(--trans-fast), color var(--trans-fast);
  white-space: nowrap;
}

.btn:active { transform: scale(0.97); }

.btn-primary {
  background: var(--clr-accent);
  color: var(--clr-bg-dark);
}

.btn-primary:hover {
  background: var(--clr-accent-hover);
  box-shadow: var(--shadow-accent);
  transform: translateY(-1px);
}

.btn-outline {
  border: 1.5px solid var(--clr-accent);
  color: var(--clr-accent);
}

.btn-outline:hover {
  background: var(--clr-accent-dim);
  transform: translateY(-1px);
}

.btn-outline-light {
  border: 1.5px solid rgba(245,245,240,0.4);
  color: var(--clr-text-light);
}

.btn-outline-light:hover {
  border-color: var(--clr-accent);
  color: var(--clr-accent);
}

/* =========================================
   SECTION LABELS & HEADINGS
   ========================================= */
.section-label {
  display: inline-block;
  font-family: var(--font-heading);
  font-size: var(--fs-xs);
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--clr-accent);
  margin-bottom: var(--sp-4);
}

.section-label::before {
  content: '//\00a0';
  opacity: 0.6;
}

.section-title {
  font-size: var(--fs-2xl);
  font-weight: 800;
  margin-bottom: var(--sp-4);
  color: var(--clr-text-dark);
}

.section-title--light {
  color: var(--clr-text-light);
}

@media (min-width: 768px) {
  .section-title { font-size: var(--fs-3xl); }
}

.section-lead {
  font-size: var(--fs-md);
  color: #4a5568;
  max-width: 56ch;
  line-height: 1.75;
}

.section-lead--light {
  color: var(--clr-text-muted);
}

/* =========================================
   HEADER / NAVIGATION
   ========================================= */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  height: var(--header-h);
  display: flex;
  align-items: center;
  background: rgba(13, 27, 42, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--clr-border-dark);
  transition: height var(--trans-base), background var(--trans-base);
}

.site-header.scrolled {
  height: calc(var(--header-h) - 10px);
  background: rgba(8, 15, 24, 0.97);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  max-width: var(--max-width);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

/* Logotype */
.logo {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: var(--fs-lg);
  color: var(--clr-text-light);
  letter-spacing: -0.03em;
  display: flex;
  align-items: center;
  gap: 0.15em;
  user-select: none;
}

.logo-bracket {
  color: var(--clr-accent);
  font-weight: 400;
}

.logo-slash {
  color: var(--clr-accent);
  font-size: 0.85em;
  margin-inline: 0.05em;
}

/* Desktop nav */
.nav-links {
  display: none;
  align-items: center;
  gap: var(--sp-8);
}

@media (min-width: 768px) {
  .nav-links { display: flex; }
}

.nav-links a {
  font-family: var(--font-heading);
  font-size: var(--fs-sm);
  font-weight: 600;
  letter-spacing: 0.03em;
  color: var(--clr-text-muted);
  position: relative;
  transition: color var(--trans-fast);
  padding-block: var(--sp-2);
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -2px; left: 0; right: 0;
  height: 2px;
  background: var(--clr-accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--trans-base);
  border-radius: 2px;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--clr-text-light);
}

.nav-links a:hover::after,
.nav-links a.active::after {
  transform: scaleX(1);
}

.nav-links a.active::after {
  background: var(--clr-accent);
}

/* Contact button in nav – override link defaults */
.nav-links a.btn-primary {
  color: var(--clr-bg-dark);
}

.nav-links a.btn-primary:hover {
  color: var(--clr-bg-dark);
}

.nav-links a.btn-primary::after {
  display: none;
}

/* Hamburger */
.nav-toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  padding: var(--sp-2);
  border-radius: var(--radius-sm);
  transition: background var(--trans-fast);
}

.nav-toggle:hover { background: var(--clr-border-dark); }

.nav-toggle span {
  display: block;
  height: 2px;
  background: var(--clr-text-light);
  border-radius: 2px;
  transition: transform var(--trans-base), opacity var(--trans-base), width var(--trans-base);
  transform-origin: center;
}

.nav-toggle span:nth-child(2) { width: 70%; align-self: flex-end; }

.nav-toggle.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
  width: 100%;
}

.nav-toggle.open span:nth-child(2) {
  opacity: 0;
  transform: translateX(10px);
}

.nav-toggle.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
  width: 100%;
}

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

/* Mobile drawer */
.mobile-nav {
  position: fixed;
  inset: 0;
  z-index: 999;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--sp-6);
  background: var(--clr-bg-darker);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--trans-base);
}

.mobile-nav.open {
  opacity: 1;
  pointer-events: all;
}

.mobile-nav a {
  font-family: var(--font-heading);
  font-size: var(--fs-2xl);
  font-weight: 700;
  color: var(--clr-text-light);
  letter-spacing: -0.02em;
  transition: color var(--trans-fast);
}

.mobile-nav a:hover,
.mobile-nav a.active {
  color: var(--clr-accent);
}

.mobile-nav .mobile-cta {
  margin-top: var(--sp-6);
}

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

/* =========================================
   HERO SECTION
   ========================================= */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  background: var(--clr-bg-dark);
  overflow: hidden;
  padding-top: var(--header-h);
}

/* Geometric grid background */
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(0,201,167,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,201,167,0.04) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, black 30%, transparent 100%);
}

.hero::after {
  content: '';
  position: absolute;
  top: -20%;
  right: -10%;
  width: 60vw;
  height: 60vw;
  max-width: 700px;
  max-height: 700px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0,201,167,0.08) 0%, transparent 70%);
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 1;
  padding-block: var(--sp-20);
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-3);
  font-family: var(--font-heading);
  font-size: var(--fs-xs);
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--clr-accent);
  margin-bottom: var(--sp-6);
  padding: var(--sp-2) var(--sp-4);
  border: 1px solid var(--clr-accent-dim);
  border-radius: 100px;
  background: var(--clr-accent-dim);
}

.hero-eyebrow::before {
  content: '';
  display: block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--clr-accent);
  animation: pulse 2s ease infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.8); }
}

.hero-title {
  font-size: clamp(2.5rem, 8vw, 5.5rem);
  font-weight: 800;
  color: var(--clr-text-light);
  line-height: 1.05;
  margin-bottom: var(--sp-6);
  letter-spacing: -0.04em;
}

.hero-title .accent-line {
  color: var(--clr-accent);
  display: block;
}

.hero-sub {
  font-size: var(--fs-md);
  color: var(--clr-text-muted);
  max-width: 50ch;
  line-height: 1.75;
  margin-bottom: var(--sp-10);
}

@media (min-width: 768px) {
  .hero-sub { font-size: var(--fs-lg); }
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-4);
  align-items: center;
}

.hero-scroll {
  position: absolute;
  bottom: var(--sp-8);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--sp-2);
  color: var(--clr-text-muted);
  font-size: var(--fs-xs);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-family: var(--font-heading);
}

.hero-scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, var(--clr-accent), transparent);
  animation: scrollLine 2s ease infinite;
}

@keyframes scrollLine {
  0% { opacity: 0; transform: scaleY(0); transform-origin: top; }
  50% { opacity: 1; }
  100% { opacity: 0; transform: scaleY(1); transform-origin: top; }
}

/* =========================================
   SERVICES SECTION
   ========================================= */
.services {
  background: var(--clr-bg-light);
}

.services-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--sp-6);
  margin-top: var(--sp-12);
}

@media (min-width: 600px) {
  .services-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 1024px) {
  .services-grid { grid-template-columns: repeat(4, 1fr); }
}

.service-card {
  background: var(--clr-card-light);
  border: 1px solid var(--clr-border-light);
  border-radius: var(--radius-lg);
  padding: var(--sp-8);
  position: relative;
  overflow: hidden;
  transition: transform var(--trans-base), box-shadow var(--trans-base), border-color var(--trans-base);
  cursor: default;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--clr-accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--trans-base);
}

.service-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(0,201,167,0.2);
}

.service-card:hover::before {
  transform: scaleX(1);
}

.service-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  background: var(--clr-accent-dim);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: var(--sp-6);
  transition: background var(--trans-base);
}

.service-card:hover .service-icon {
  background: var(--clr-accent);
}

.service-card h3 {
  font-size: var(--fs-lg);
  margin-bottom: var(--sp-3);
  color: var(--clr-text-dark);
}

.service-card p {
  font-size: var(--fs-sm);
  color: #4a5568;
  line-height: 1.7;
}

/* =========================================
   WHY US SECTION
   ========================================= */
.why-us {
  background: var(--clr-bg-dark);
  color: var(--clr-text-light);
}

.why-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--sp-8);
  margin-top: var(--sp-12);
}

@media (min-width: 768px) {
  .why-grid { grid-template-columns: repeat(3, 1fr); }
}

.why-item {
  position: relative;
  padding: var(--sp-8);
  border: 1px solid var(--clr-border-dark);
  border-radius: var(--radius-lg);
  background: var(--clr-card-dark);
  transition: border-color var(--trans-base), transform var(--trans-base);
}

.why-item:hover {
  border-color: rgba(0,201,167,0.3);
  transform: translateY(-3px);
}

.why-number {
  font-family: var(--font-heading);
  font-size: 4rem;
  font-weight: 800;
  color: var(--clr-accent-dim);
  line-height: 1;
  margin-bottom: var(--sp-4);
  letter-spacing: -0.05em;
}

.why-item h3 {
  font-size: var(--fs-lg);
  margin-bottom: var(--sp-3);
  color: var(--clr-text-light);
}

.why-item p {
  font-size: var(--fs-sm);
  color: var(--clr-text-muted);
  line-height: 1.7;
}

/* =========================================
   CTA BANNER
   ========================================= */
.cta-banner {
  background: var(--clr-bg-dark);
  position: relative;
  overflow: hidden;
}

.cta-banner::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(0,201,167,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,201,167,0.03) 1px, transparent 1px);
  background-size: 40px 40px;
}

.cta-inner {
  position: relative;
  z-index: 1;
  text-align: center;
  padding-block: var(--sp-20);
}

.cta-inner h2 {
  font-size: clamp(1.75rem, 5vw, 3.25rem);
  font-weight: 800;
  color: var(--clr-text-light);
  margin-bottom: var(--sp-4);
  letter-spacing: -0.03em;
}

.cta-inner p {
  font-size: var(--fs-md);
  color: var(--clr-text-muted);
  margin-bottom: var(--sp-10);
  max-width: 50ch;
  margin-inline: auto;
}

.cta-actions {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: var(--sp-4);
}

/* =========================================
   PROJECTS PAGE
   ========================================= */
.page-hero {
  background: var(--clr-bg-dark);
  padding-top: calc(var(--header-h) + var(--sp-16));
  padding-bottom: var(--sp-16);
  position: relative;
  overflow: hidden;
}

.page-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(0,201,167,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,201,167,0.04) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 100%, black 20%, transparent 100%);
}

.page-hero-content {
  position: relative;
  z-index: 1;
}

.page-hero h1 {
  font-size: clamp(2.25rem, 6vw, 4.5rem);
  font-weight: 800;
  color: var(--clr-text-light);
  letter-spacing: -0.04em;
  margin-bottom: var(--sp-4);
}

.page-hero p {
  font-size: var(--fs-md);
  color: var(--clr-text-muted);
  max-width: 54ch;
}

/* Filter bar */
.filter-bar {
  background: var(--clr-bg-light);
  border-bottom: 1px solid var(--clr-border-light);
  position: sticky;
  top: var(--header-h);
  z-index: 100;
}

.filter-inner {
  display: flex;
  gap: var(--sp-2);
  overflow-x: auto;
  padding-block: var(--sp-4);
  scrollbar-width: none;
}

.filter-inner::-webkit-scrollbar { display: none; }

.filter-btn {
  padding: var(--sp-2) var(--sp-5);
  border-radius: 100px;
  font-family: var(--font-heading);
  font-size: var(--fs-sm);
  font-weight: 600;
  color: #4a5568;
  border: 1.5px solid var(--clr-border-light);
  background: white;
  white-space: nowrap;
  transition: all var(--trans-fast);
}

.filter-btn:hover {
  border-color: var(--clr-accent);
  color: var(--clr-accent);
}

.filter-btn.active {
  background: var(--clr-accent);
  border-color: var(--clr-accent);
  color: var(--clr-bg-dark);
}

/* Projects grid */
.projects-section {
  background: var(--clr-bg-light);
}

.projects-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--sp-8);
}

@media (min-width: 600px) {
  .projects-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 1024px) {
  .projects-grid { grid-template-columns: repeat(3, 1fr); }
}

.project-card {
  background: var(--clr-card-light);
  border: 1px solid var(--clr-border-light);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform var(--trans-base), box-shadow var(--trans-base);
  display: flex;
  flex-direction: column;
}

.project-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}

.project-card[data-hidden] {
  display: none;
}

.project-thumb {
  position: relative;
  height: 200px;
  background: var(--clr-bg-dark);
  overflow: hidden;
}

.project-thumb-bg {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-size: 5rem;
  font-weight: 800;
  letter-spacing: -0.05em;
  opacity: 0.06;
  color: var(--clr-accent);
  user-select: none;
}

.project-thumb-pattern {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(0,201,167,0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,201,167,0.06) 1px, transparent 1px);
  background-size: 30px 30px;
}

.project-thumb-icon {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
  z-index: 1;
}

/* Hover overlay */
.project-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 201, 167, 0.92);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--sp-3);
  opacity: 0;
  transform: translateY(8px);
  transition: opacity var(--trans-base), transform var(--trans-base);
  z-index: 2;
}

.project-card:hover .project-overlay {
  opacity: 1;
  transform: translateY(0);
}

.project-overlay-text {
  font-family: var(--font-heading);
  font-size: var(--fs-sm);
  font-weight: 700;
  color: var(--clr-bg-dark);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.project-body {
  padding: var(--sp-6);
  flex: 1;
  display: flex;
  flex-direction: column;
}

.project-tag {
  display: inline-block;
  font-family: var(--font-heading);
  font-size: var(--fs-xs);
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--clr-accent);
  padding: var(--sp-1) var(--sp-3);
  border-radius: 100px;
  background: var(--clr-accent-dim);
  margin-bottom: var(--sp-3);
}

.project-body h3 {
  font-size: var(--fs-lg);
  margin-bottom: var(--sp-3);
  color: var(--clr-text-dark);
}

.project-body p {
  font-size: var(--fs-sm);
  color: #4a5568;
  line-height: 1.7;
  flex: 1;
}

.project-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: var(--sp-5);
  padding-top: var(--sp-5);
  border-top: 1px solid var(--clr-border-light);
}

.project-year {
  font-size: var(--fs-xs);
  color: var(--clr-text-muted);
  font-family: var(--font-heading);
  font-weight: 600;
}

.project-arrow {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: 1.5px solid var(--clr-border-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.875rem;
  color: var(--clr-accent);
  transition: all var(--trans-fast);
}

.project-card:hover .project-arrow {
  background: var(--clr-accent);
  border-color: var(--clr-accent);
  color: var(--clr-bg-dark);
  transform: rotate(45deg);
}

/* =========================================
   ABOUT PAGE
   ========================================= */
.about-story {
  background: var(--clr-bg-light);
}

.split-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--sp-12);
  align-items: center;
}

@media (min-width: 768px) {
  .split-layout { grid-template-columns: 1fr 1fr; gap: var(--sp-16); }
}

.story-text h2 {
  font-size: clamp(1.75rem, 4vw, 3rem);
  font-weight: 800;
  margin-bottom: var(--sp-6);
  letter-spacing: -0.03em;
}

.story-text p {
  font-size: var(--fs-md);
  color: #4a5568;
  line-height: 1.8;
  margin-bottom: var(--sp-4);
}

.story-visual {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.story-shape {
  width: 100%;
  max-width: 420px;
  aspect-ratio: 1;
  border-radius: var(--radius-xl);
  background: var(--clr-bg-dark);
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.story-shape::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(0,201,167,0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,201,167,0.06) 1px, transparent 1px);
  background-size: 30px 30px;
}

.story-code {
  position: relative;
  z-index: 1;
  font-family: 'Courier New', monospace;
  font-size: clamp(0.7rem, 2vw, 1rem);
  color: var(--clr-accent);
  line-height: 1.8;
  text-align: left;
  padding: var(--sp-8);
}

.story-code .dim { color: rgba(0,201,167,0.4); }
.story-code .white { color: var(--clr-text-light); }

.story-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--sp-4);
  margin-top: var(--sp-10);
  padding-top: var(--sp-10);
  border-top: 1px solid var(--clr-border-light);
}

.stat-item {
  text-align: center;
}

.stat-number {
  display: block;
  font-family: var(--font-heading);
  font-size: var(--fs-3xl);
  font-weight: 800;
  color: var(--clr-accent);
  letter-spacing: -0.04em;
  line-height: 1;
  margin-bottom: var(--sp-1);
}

.stat-label {
  font-size: var(--fs-xs);
  color: #4a5568;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-family: var(--font-heading);
  font-weight: 600;
}

/* Mission quote */
.mission-section {
  background: var(--clr-bg-dark);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.mission-section::before {
  content: '"';
  position: absolute;
  top: -0.1em;
  left: 50%;
  transform: translateX(-50%);
  font-family: var(--font-heading);
  font-size: 20rem;
  font-weight: 800;
  color: rgba(0,201,167,0.03);
  line-height: 1;
  pointer-events: none;
}

.mission-quote {
  position: relative;
  z-index: 1;
  font-family: var(--font-heading);
  font-size: clamp(1.5rem, 4vw, 2.75rem);
  font-weight: 700;
  color: var(--clr-text-light);
  line-height: 1.3;
  max-width: 18ch;
  margin-inline: auto;
  letter-spacing: -0.03em;
}

.mission-quote .accent { color: var(--clr-accent); }

.mission-author {
  margin-top: var(--sp-8);
  font-size: var(--fs-sm);
  color: var(--clr-text-muted);
  letter-spacing: 0.05em;
}

/* Values section */
.values-section {
  background: var(--clr-bg-light);
}

.values-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--sp-6);
  margin-top: var(--sp-12);
}

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

.value-item {
  display: flex;
  gap: var(--sp-6);
  padding: var(--sp-8);
  border: 1px solid var(--clr-border-light);
  border-radius: var(--radius-lg);
  background: white;
  transition: transform var(--trans-base), box-shadow var(--trans-base);
}

.value-item:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.value-num {
  font-family: var(--font-heading);
  font-size: 3rem;
  font-weight: 800;
  color: var(--clr-accent);
  line-height: 1;
  flex-shrink: 0;
  min-width: 2.5ch;
  opacity: 0.9;
}

.value-content h3 {
  font-size: var(--fs-lg);
  margin-bottom: var(--sp-3);
  color: var(--clr-text-dark);
}

.value-content p {
  font-size: var(--fs-sm);
  color: #4a5568;
  line-height: 1.75;
}

/* Tech stack */
.tech-section {
  background: var(--clr-bg-dark);
}

.tech-grid {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-3);
  margin-top: var(--sp-10);
}

.tech-badge {
  padding: var(--sp-2) var(--sp-5);
  border-radius: var(--radius-md);
  font-family: var(--font-heading);
  font-size: var(--fs-sm);
  font-weight: 600;
  border: 1.5px solid var(--clr-border-dark);
  color: var(--clr-text-light);
  background: var(--clr-card-dark);
  transition: all var(--trans-fast);
  letter-spacing: 0.02em;
}

.tech-badge:hover {
  border-color: var(--clr-accent);
  color: var(--clr-accent);
  background: var(--clr-accent-dim);
  transform: translateY(-2px);
}

/* =========================================
   CONTACT PAGE
   ========================================= */
.contact-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--sp-16);
}

@media (min-width: 1024px) {
  .contact-layout { grid-template-columns: 1fr 1.6fr; }
}

.contact-info h2 {
  font-size: var(--fs-2xl);
  font-weight: 800;
  margin-bottom: var(--sp-4);
  letter-spacing: -0.03em;
}

.contact-info p {
  font-size: var(--fs-base);
  color: #4a5568;
  line-height: 1.75;
  margin-bottom: var(--sp-10);
}

.contact-details {
  display: flex;
  flex-direction: column;
  gap: var(--sp-5);
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: var(--sp-4);
}

.contact-item-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: var(--clr-accent-dim);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.125rem;
  flex-shrink: 0;
  color: var(--clr-accent);
}

.contact-item-body strong {
  display: block;
  font-family: var(--font-heading);
  font-size: var(--fs-sm);
  font-weight: 700;
  color: var(--clr-text-dark);
  margin-bottom: var(--sp-1);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.contact-item-body span {
  font-size: var(--fs-sm);
  color: #4a5568;
  line-height: 1.6;
}

.contact-item-body a {
  color: var(--clr-accent);
  transition: opacity var(--trans-fast);
}

.contact-item-body a:hover { opacity: 0.8; }

.hours-grid {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--sp-2) var(--sp-6);
  margin-top: var(--sp-8);
  padding: var(--sp-6);
  background: white;
  border: 1px solid var(--clr-border-light);
  border-radius: var(--radius-lg);
}

.hours-day {
  font-family: var(--font-heading);
  font-size: var(--fs-sm);
  font-weight: 600;
  color: var(--clr-text-dark);
}

.hours-time {
  font-size: var(--fs-sm);
  color: #4a5568;
  text-align: right;
}

/* Contact form */
.contact-form-wrap {
  background: white;
  border: 1px solid var(--clr-border-light);
  border-radius: var(--radius-xl);
  padding: var(--sp-10);
  box-shadow: var(--shadow-md);
}

@media (min-width: 768px) {
  .contact-form-wrap { padding: var(--sp-12); }
}

.form-group {
  margin-bottom: var(--sp-6);
}

.form-label {
  display: block;
  font-family: var(--font-heading);
  font-size: var(--fs-sm);
  font-weight: 600;
  color: var(--clr-text-dark);
  margin-bottom: var(--sp-2);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.form-label .req {
  color: var(--clr-accent);
  margin-left: 2px;
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: 0.875rem var(--sp-5);
  border: 1.5px solid var(--clr-border-light);
  border-radius: var(--radius-md);
  font-family: var(--font-body);
  font-size: var(--fs-base);
  color: var(--clr-text-dark);
  background: var(--clr-bg-light);
  transition: border-color var(--trans-fast), box-shadow var(--trans-fast), background var(--trans-fast);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  border-color: var(--clr-accent);
  background: white;
  box-shadow: 0 0 0 3px rgba(0,201,167,0.12);
}

.form-input.error,
.form-select.error,
.form-textarea.error {
  border-color: #e53e3e;
  box-shadow: 0 0 0 3px rgba(229,62,62,0.1);
}

.form-input.success,
.form-select.success,
.form-textarea.success {
  border-color: var(--clr-accent);
}

.form-error {
  display: none;
  margin-top: var(--sp-2);
  font-size: var(--fs-xs);
  color: #e53e3e;
  font-weight: 500;
}

.form-error.visible { display: block; }

.form-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--sp-6);
}

@media (min-width: 600px) {
  .form-row { grid-template-columns: 1fr 1fr; }
}

.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 24 24' fill='none' stroke='%239AACBB' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  padding-right: 2.5rem;
}

.form-textarea {
  resize: vertical;
  min-height: 140px;
}

.form-submit {
  width: 100%;
  padding: 1rem;
  font-size: var(--fs-base);
}

/* Success message */
.form-success {
  display: none;
  text-align: center;
  padding: var(--sp-16) var(--sp-8);
}

.form-success.visible { display: block; }

.success-icon {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: var(--clr-accent-dim);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  margin: 0 auto var(--sp-6);
  animation: successPop 0.4s cubic-bezier(0.34,1.56,0.64,1);
}

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

.form-success h3 {
  font-size: var(--fs-xl);
  margin-bottom: var(--sp-3);
  color: var(--clr-text-dark);
}

.form-success p {
  font-size: var(--fs-base);
  color: #4a5568;
}

/* =========================================
   FOOTER
   ========================================= */
.site-footer {
  background: var(--clr-bg-darker);
  border-top: 1px solid var(--clr-border-dark);
  color: var(--clr-text-muted);
}

.footer-top {
  padding-block: var(--sp-16);
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--sp-10);
}

@media (min-width: 600px) {
  .footer-top { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 1024px) {
  .footer-top { grid-template-columns: 2fr 1fr 1fr 1fr; }
}

.footer-brand .logo {
  margin-bottom: var(--sp-4);
}

.footer-tagline {
  font-size: var(--fs-sm);
  line-height: 1.7;
  max-width: 30ch;
}

.footer-col h4 {
  font-family: var(--font-heading);
  font-size: var(--fs-sm);
  font-weight: 700;
  color: var(--clr-text-light);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--sp-5);
}

.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: var(--sp-3);
}

.footer-col ul li a {
  font-size: var(--fs-sm);
  color: var(--clr-text-muted);
  transition: color var(--trans-fast);
}

.footer-col ul li a:hover { color: var(--clr-accent); }

.footer-contact-item {
  font-size: var(--fs-sm);
  margin-bottom: var(--sp-3);
  display: flex;
  align-items: flex-start;
  gap: var(--sp-2);
}

.footer-contact-item a {
  color: var(--clr-text-muted);
  transition: color var(--trans-fast);
}

.footer-contact-item a:hover { color: var(--clr-accent); }

.footer-bottom {
  border-top: 1px solid var(--clr-border-dark);
  padding-block: var(--sp-6);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--sp-3);
  text-align: center;
}

@media (min-width: 768px) {
  .footer-bottom {
    flex-direction: row;
    justify-content: space-between;
    text-align: left;
  }
}

.footer-copy {
  font-size: var(--fs-xs);
  color: var(--clr-text-muted);
  opacity: 0.7;
}

.footer-accent-line {
  width: 40px;
  height: 2px;
  background: var(--clr-accent);
  border-radius: 2px;
  display: none;
}

@media (min-width: 768px) {
  .footer-accent-line { display: block; }
}

/* =========================================
   SCROLL ANIMATIONS (Intersection Observer)
   ========================================= */
.fade-up {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}

.fade-up:nth-child(1) { transition-delay: 0s; }
.fade-up:nth-child(2) { transition-delay: 0.08s; }
.fade-up:nth-child(3) { transition-delay: 0.16s; }
.fade-up:nth-child(4) { transition-delay: 0.24s; }
.fade-up:nth-child(5) { transition-delay: 0.32s; }
.fade-up:nth-child(6) { transition-delay: 0.40s; }

/* Stagger groups */
.stagger-group .fade-up:nth-child(1) { transition-delay: 0.05s; }
.stagger-group .fade-up:nth-child(2) { transition-delay: 0.15s; }
.stagger-group .fade-up:nth-child(3) { transition-delay: 0.25s; }
.stagger-group .fade-up:nth-child(4) { transition-delay: 0.35s; }

/* =========================================
   CONTACT PAGE — LIGHT BACKGROUND
   ========================================= */
.contact-section {
  background: var(--clr-bg-light);
}