:root {
  /* Colors */
  --bg: #0a0a0a;
  --text: #f5f5f5;
  --text-muted: #888;
  --glass: rgba(255,255,255,.04);
  --border: rgba(255,255,255,.1);
  --accent: #fff;
  --glow: rgba(255,255,255,.15);
  
  /* Spacing */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2rem;
  --space-xl: 2.5rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  
  /* Transitions */
  --transition-fast: 0.3s;
  --transition-base: 0.4s;
  --transition-slow: 0.5s;
  --ease-smooth: cubic-bezier(.4, 0, .2, 1);
  --ease-slide: cubic-bezier(.77, 0, .18, 1);
}

* { 
  margin: 0; 
  padding: 0; 
  box-sizing: border-box; 
}

body {
  font-family: 'Space Grotesk', system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  overflow: hidden;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ===== USER SELECT ===== */
button, 
input, 
textarea, 
#nav, 
.timeline-number {
  user-select: none;
}

.logo img {
  pointer-events: none;
  -webkit-user-drag: none;
}

/* ===== CUSTOM SCROLLBAR ===== */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: rgba(255, 255, 255, 0.02);
  border-left: 1px solid var(--border);
}

::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, var(--accent), color-mix(in srgb, var(--accent) 3%, transparent));
  border-radius: 10px;
  transition: all var(--transition-fast);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--accent);
  box-shadow: 0 0 10px var(--glow);
}

.slide::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, var(--accent) 0%, color-mix(in srgb, var(--accent) 30%, transparent) 100%);
  box-shadow: 0 0 8px rgba(255, 255, 255, 0.1);
}

.slide::-webkit-scrollbar-thumb:hover {
  background: var(--accent);
  box-shadow: 0 0 15px var(--glow), 0 0 30px var(--glow);
}

.slide::-webkit-scrollbar-track {
  background: rgba(0, 0, 0, 0.3);
  border-left: 1px solid var(--border);
}

/* ===== NAV ===== */
nav {
  position: fixed;
  top: 0;
  width: 100%;
  height: 80px;
  padding: 0 5%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  z-index: 999;
  background: linear-gradient(180deg, rgba(10,10,10,.95), transparent);
  backdrop-filter: blur(4px);
  transition: all var(--transition-base);
}

.logo {
  font-weight: 700;
  letter-spacing: 6px;
  font-size: .8rem;
  cursor: pointer;
  display: flex;
  gap: 20px;
  align-items: center;
}

.logo img {
  height: 27px;
}

.nav-links {
  display: flex;
  gap: 3rem;
  align-items: center;
}

.nav-link {
  background: none;
  border: none;
  color: var(--text);
  font-size: .7rem;
  letter-spacing: 3px;
  text-transform: uppercase;
  opacity: .4;
  cursor: pointer;
  position: relative;
  padding: var(--space-xs) 0;
  transition: opacity var(--transition-fast);
  -webkit-tap-highlight-color: transparent;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent);
  transition: width var(--transition-fast);
}

.nav-link:hover,
.nav-link.active {
  opacity: 1;
}

.nav-link.active::after {
  width: 95%;
}

.nav-link.lang-toggle {
  opacity: 1;
  font-weight: 700;
  color: var(--accent);
  border: 1px solid var(--accent);
  padding: var(--space-xs) var(--space-sm);
  border-radius: 4px;
  transition: all var(--transition-fast);
}

.nav-link.lang-toggle:hover {
  background: var(--accent);
  color: #000;
}

.nav-link.lang-toggle::after {
  display: none;
}

/* ===== PROGRESS BAR ===== */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 2px;
  background: var(--accent);
  width: 0;
  z-index: 1000;
  transition: width var(--transition-fast);
}

/* ===== SLIDER ===== */
.viewport {
  width: 100vw;
  height: 100vh;
  min-height: -webkit-fill-available;
  overflow: hidden;
}

.slider {
  display: flex;
  height: 100%;
  transition: transform 1.4s var(--ease-slide);
}

.slide {
  flex: 0 0 100vw;
  height: 100vh;
  min-height: -webkit-fill-available;
  padding: 10rem 8% 6rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
  opacity: 0;
  overflow-y: auto;
  scroll-behavior: smooth;
  animation: fadeIn 1s forwards;
}

@keyframes fadeIn {
  to { opacity: 1; }
}

/* ===== SLIDE BACKGROUNDS ===== */
.slide[data-theme="gray"] {
  background: radial-gradient(circle at 60% 40%, #151515, #0a0a0a 70%);
}

.slide[data-theme="blue"] {
  --accent: #5db7ff;
  background: radial-gradient(circle at 30% 50%, #0f1c2e, #0a0a0a 70%);
}

.slide[data-theme="aqua"] {
  --accent: #7cfffc;
  background: radial-gradient(circle at 60% 40%, #0e221d, #0a0a0a 70%);
}

.slide[data-theme="orange"] {
  --accent: #ffb347;
  background: radial-gradient(circle at 50% 30%, #2a1f10, #0a0a0a 70%);
}

.slide[data-theme="green"] {
  --accent: #7CFF7C;
  background: radial-gradient(circle at 60% 70%, #13220e, #0a0a0a 70%);
}

.slide[data-theme="purple"] {
  --accent: #b57cff;
  background: radial-gradient(circle at 60% 70%, #1c0e22, #0a0a0a 70%);
}

/* ===== TYPOGRAPHY ===== */
h1 {
  font-size: clamp(3.5rem, 8vw, 7rem);
  letter-spacing: -3px;
  line-height: 1.1;
  margin-bottom: var(--space-md);
  font-weight: 700;
  background: linear-gradient(135deg, #fff, #aaa);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  letter-spacing: -1px;
  margin-bottom: var(--space-sm);
}

h3 {
  font-size: 1rem;
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: .75rem;
  font-weight: 600;
}

p {
  max-width: 720px;
  font-size: clamp(1rem, 1.5vw, 1.1rem);
  line-height: 1.9;
  opacity: .85;
  margin-bottom: var(--space-sm);
}

.subtitle {
  font-size: clamp(1rem, 2vw, 1.3rem);
  color: var(--accent);
  letter-spacing: 4px;
  text-transform: uppercase;
  font-weight: 600;
  margin-bottom: var(--space-lg);
  opacity: .9;
}

/* ===== HERO SECTION ===== */
.hero-content {
  max-width: 900px;
}

.hero-title {
  font-size: clamp(3.5rem, 10vw, 8rem);
  line-height: 1;
}

.hero-description {
  font-size: clamp(1rem, 2vw, 1.3rem);
  max-width: 650px;
  opacity: .7;
}

.stack {
  display: flex;
  gap: var(--space-sm);
  flex-wrap: wrap;
  margin: var(--space-lg) 0;
}

.pill {
  border: 1px solid var(--glow);
  padding: var(--space-xs) var(--space-sm);
  border-radius: 999px;
  font-size: .85rem;
  opacity: .7;
}

.hero-stats {
  display: flex;
  gap: 4rem;
}

.stat {
  position: relative;
  padding-left: var(--space-md);
}

.stat::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  width: 3px;
  height: 100%;
  background: var(--accent);
}

.stat-number {
  font-size: 3rem;
  font-weight: 700;
  color: var(--accent);
  line-height: 1;
}

.stat-label {
  font-size: .75rem;
  letter-spacing: 2px;
  opacity: .5;
  text-transform: uppercase;
  margin-top: var(--space-xs);
}

/* ===== SHARED CARD STYLES ===== */
.project-card {
  position: relative;
  padding: var(--space-xl);
  border: 1px solid var(--border);
  border-radius: 4px;
  background: var(--glass);
  backdrop-filter: blur(20px);
  overflow: hidden;
  transition: all var(--transition-slow) var(--ease-smooth);
  -webkit-tap-highlight-color: transparent;
}

.project-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-base);
}

.project-card:hover {
  transform: translateY(-12px);
  border-color: var(--accent);
  box-shadow: 0 40px 100px rgba(0,0,0,.7);
}

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

.project-card:active {
  transform: scale(0.98);
}

/* ===== PROJECT CARDS ===== */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(550px, 1fr));
  gap: var(--space-xl);
  margin-top: var(--space-2xl);
}

.project-card {
  padding: var(--space-lg);
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.project-card::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--accent), transparent);
  opacity: 0;
  transition: opacity var(--transition-slow);
  z-index: 0;
}

.project-card:hover::after {
  opacity: .05;
}

.project-card:hover {
  transform: translateY(-12px) scale(1.02);
}

a.project-card {
  color: inherit;
  text-decoration: none;
}

.project-tag {
  font-size: .65rem;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--accent);
  opacity: .8;
}

.project-card h3 {
  font-size: 1.4rem;
  letter-spacing: 0;
  text-transform: none;
  color: var(--accent);
  font-weight: 600;
}

.project-card p {
  font-size: .95rem;
  opacity: .7;
  margin: 0;
}

.project-link {
  font-size: .75rem;
  letter-spacing: 2px;
  text-transform: uppercase;
  opacity: .5;
  margin-top: auto;
  transition: all var(--transition-fast);
}

.project-card:hover .project-link {
  opacity: 1;
  color: var(--accent);
}

.project-card.current-project {
  cursor: auto;
}

.project-card.current-project .project-link {
  opacity: 1;
  color: var(--accent);
}

/* ===== SERVICE CARDS ===== */
.service-info {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: var(--space-lg);
}

/* ===== PROCESS TIMELINE ===== */
.timeline {
  margin-top: var(--space-2xl);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
}

.timeline-item {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 3rem;
  padding: var(--space-lg);
  border-left: 2px solid var(--border);
  position: relative;
  transition: all var(--transition-base);
}

.timeline-item::before {
  content: '';
  position: absolute;
  left: -6px;
  top: 3.6rem;
  width: 10px;
  height: 10px;
  background: var(--accent);
  border-radius: 50%;
  box-shadow: 0 0 20px var(--accent);
}

.timeline-item:hover {
  border-left-color: var(--accent);
  padding-left: var(--space-xl);
}

.timeline-number {
  font-size: 2.5rem;
  font-weight: 700;
  opacity: .2;
}

.timeline-content h3 {
  font-size: 1.2rem;
  margin-bottom: .75rem;
}

.timeline-content p {
  font-size: .95rem;
  opacity: .7;
}

/* ===== BUTTONS ===== */
.cta {
  padding: 1.2rem 3.5rem;
  border: 2px solid var(--accent);
  background: none;
  color: var(--accent);
  letter-spacing: 3px;
  font-size: .75rem;
  text-transform: uppercase;
  font-weight: 600;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  transition: all var(--transition-base);
  -webkit-tap-highlight-color: transparent;
  z-index: 1;
}

.cta::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-base);
  z-index: -1;
}

.cta:hover::before {
  transform: scaleX(1);
}

.cta:hover {
  color: #000;
  box-shadow: 0 0 40px var(--glow);
}

.cta:active {
  transform: scale(0.96);
}

.cta:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.cta:disabled:hover {
  color: var(--accent);
  box-shadow: none;
}

.cta:disabled::before {
  transform: scaleX(0);
}

/* ===== CONTACT SECTION ===== */
.contact-split {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: 4rem;
}

.contact-info-box {
  display: flex;
  flex-direction: column;
}

.contact-info-box h3,
.contact-form-box h3,
.service-info h3 {
  font-size: .9rem;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--accent);
  opacity: .9;
}

.contact-info-box h3,
.contact-form-box h3 {
  margin-bottom: var(--space-lg);
}

.contact-email-box {
  margin: var(--space-lg) 0;
  padding-top: var(--space-2xl);
  border-top: 1px solid var(--border);
}

.contact-email {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--text);
  text-decoration: none;
  transition: color var(--transition-fast);
  position: relative;
}

.contact-email::after {
  content: '';
  position: absolute;
  bottom: -6px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent);
  transition: width var(--transition-fast);
}

.contact-email:hover::after {
  width: 100%;
}

.contact-details {
  display: flex;
  justify-content: space-between;
}

.detail-item {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.detail-label {
  font-size: .7rem;
  letter-spacing: 2px;
  text-transform: uppercase;
  opacity: .4;
}

.detail-value {
  font-size: .95rem;
  opacity: .8;
}

/* ===== FORM STYLES ===== */
.simple-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.input-field {
  background: var(--glass);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 1.2rem;
  color: var(--text);
  font-family: inherit;
  font-size: .95rem;
  transition: all var(--transition-fast);
  -webkit-appearance: none;
}

.input-field:focus {
  outline: none;
  border-color: var(--accent);
  background: rgba(255,255,255,.06);
}

textarea.input-field {
  min-height: 150px;
  resize: vertical;
  transition: background var(--transition-fast), border var(--transition-fast);
}

/* Select styling */
select.input-field {
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23888' d='M6 9L1 4h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  padding-right: 2.5rem;
}

select.input-field:focus {
  background: rgba(255,255,255,.06) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23888' d='M6 9L1 4h10z'/%3E%3C/svg%3E") no-repeat right 1rem center;
}

select.input-field option {
  background: #1a1a1a;
  color: var(--text);
  padding: 1rem;
  font-size: .95rem;
  font-weight: 500;
}

select.input-field option:checked {
  background: var(--accent) !important;
  color: #000 !important;
  font-weight: 600;
}

/* Number input */
input[type="number"].input-field {
  -moz-appearance: textfield;
}

input[type="number"].input-field::-webkit-outer-spin-button,
input[type="number"].input-field::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

/* Budget group */
.budget-group {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: var(--space-sm);
}

.budget-input {
  min-width: 0;
}

.currency-select {
  width: 100px;
}

/* Honeypot field */
.honeypot {
  position: absolute !important;
  left: -9999px !important;
  width: 1px !important;
  height: 1px !important;
  opacity: 0 !important;
  pointer-events: none !important;
}

/* Turnstile container */
#turnstile-container {
  display: none;
}

/* ===== PRIVACY MODAL ===== */
.privacy-footer {
  margin-top: var(--space-2xl);
  padding-top: var(--space-lg);
  border-top: 1px solid var(--border);
  color: var(--text);
  font-size: .75rem;
  letter-spacing: 2px;
  text-transform: uppercase;
  opacity: .5;
}

.privacy-link {
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
  color: var(--text);
  font-family: inherit;
  font-size: .75rem;
  transition: all var(--transition-fast);
  -webkit-tap-highlight-color: transparent;
}

.privacy-link:hover {
  opacity: 1;
  color: var(--accent);
}

.privacy-modal {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.9);
  backdrop-filter: blur(10px);
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-lg);
  animation: fadeIn 0.3s;
}

.privacy-modal-content {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 4px;
  max-width: 800px;
  width: 100%;
  max-height: 100%;
  display: flex;
  flex-direction: column;
  animation: slideUp 0.4s;
}

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

.privacy-header {
  padding: var(--space-lg) var(--space-2xl);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-lg);
  flex-shrink: 0;
}

.privacy-header h2 {
  font-size: 2rem;
  margin: 0;
  color: var(--accent);
  letter-spacing: 2px;
  text-transform: uppercase;
}

.privacy-close {
  background: none;
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--text);
  font-size: 2rem;
  cursor: pointer;
  opacity: .7;
  width: 40px;
  height: 40px;
  min-width: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
  font-family: inherit;
  flex-shrink: 0;
  transition: all var(--transition-fast);
  -webkit-tap-highlight-color: transparent;
}

.privacy-close:hover {
  opacity: 1;
  color: var(--accent);
  transform: rotate(90deg);
  border-color: var(--accent);
}

.privacy-body {
  padding: var(--space-lg) var(--space-2xl);
  overflow-y: auto;
  flex: 1;
}

.privacy-footer-btn {
  padding: var(--space-lg) var(--space-2xl);
  border-top: 1px solid var(--border);
  flex-shrink: 0;
}

.privacy-section {
  margin-bottom: var(--space-lg);
}

.privacy-section:last-child {
  margin-bottom: 0;
}

.privacy-section h3 {
  font-size: 1.2rem;
  margin-bottom: var(--space-sm);
  color: var(--accent);
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: none;
}

.privacy-section p {
  font-size: .95rem;
  line-height: 1.8;
  opacity: .85;
  margin-bottom: var(--space-sm);
}

.privacy-section p:last-child {
  margin-bottom: 0;
}

.privacy-section ul {
  list-style: none;
  padding-left: 0;
  margin: var(--space-sm) 0;
}

.privacy-section li {
  font-size: .95rem;
  line-height: 1.8;
  opacity: .85;
  padding-left: var(--space-md);
  position: relative;
  margin-bottom: var(--space-xs);
}

.privacy-section li::before {
  content: '•';
  position: absolute;
  left: 0;
  color: var(--accent);
  font-weight: bold;
}

.privacy-section strong {
  color: var(--accent);
  font-weight: 600;
}

.privacy-section a {
  color: var(--accent);
  text-decoration: none;
  transition: opacity var(--transition-fast);
}

.privacy-section a:hover {
  opacity: .7;
}