/* Digital Tech Mania - Premium Monochrome Design System */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=Syne:wght@700;800&display=swap');

:root {
  --bg-dark: #050505;
  --bg-card: #0F0F11;
  --bg-card-hover: #16161A;
  
  --text-primary: #FFFFFF;
  --text-secondary: #8E8E93;
  --text-muted: #48484A;
  
  --border-color: #2C2C2E;
  --border-color-hover: #E5E5EA;
  --accent-color: #FFFFFF;
  
  --font-header: 'Syne', sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  
  --transition-smooth: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-fast: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Reset & Base Styles */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  background-color: var(--bg-dark);
  color: var(--text-primary);
  font-family: var(--font-body);
  overflow-x: hidden;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background-color: var(--bg-dark);
  line-height: 1.6;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 6px;
}
::-webkit-scrollbar-track {
  background: var(--bg-dark);
}
::-webkit-scrollbar-thumb {
  background: var(--border-color);
  border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--text-secondary);
}

/* Layout Utilities */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

main {
  flex-grow: 1;
}

/* Typography styles */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-header);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text-primary);
}

p {
  color: var(--text-secondary);
  font-weight: 400;
  font-size: 1.05rem;
}

/* Interactive Background - Modern Grid Pattern */
.grid-bg {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  background-image: 
    linear-gradient(to right, rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 80px 80px;
  mask-image: radial-gradient(circle at center, black, transparent 80%);
  -webkit-mask-image: radial-gradient(circle at center, black, transparent 80%);
  opacity: 0.85;
  pointer-events: none;
}

/* Animation Classes & Transitions */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes textReveal {
  from {
    letter-spacing: -0.2em;
    filter: blur(10px);
    opacity: 0;
  }
  to {
    letter-spacing: -0.02em;
    filter: blur(0px);
    opacity: 1;
  }
}

.animate-fade-in {
  animation: fadeInUp 1.2s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.animate-reveal {
  animation: textReveal 1.5s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

/* Button & Link Styles */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.85rem 1.8rem;
  font-size: 0.95rem;
  font-weight: 600;
  text-decoration: none;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-radius: 0px;
  cursor: pointer;
  transition: var(--transition-smooth);
}

.btn-primary {
  background-color: var(--text-primary);
  color: var(--bg-dark);
  border: 1px solid var(--text-primary);
}

.btn-primary:hover {
  background-color: transparent;
  color: var(--text-primary);
  transform: translateY(-2px);
  box-shadow: 0 10px 20px rgba(255, 255, 255, 0.05);
}

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

.btn-secondary:hover {
  border-color: var(--text-primary);
  background-color: rgba(255, 255, 255, 0.03);
  transform: translateY(-2px);
}

.magnetic-link {
  position: relative;
  color: var(--text-primary);
  text-decoration: none;
  font-weight: 500;
  transition: var(--transition-fast);
}

.magnetic-link::after {
  content: '';
  position: absolute;
  width: 100%;
  transform: scaleX(0);
  height: 1px;
  bottom: -4px;
  left: 0;
  background-color: var(--text-primary);
  transform-origin: bottom right;
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.magnetic-link:hover::after {
  transform: scaleX(1);
  transform-origin: bottom left;
}

/* Card Component Design */
.card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  padding: 2.5rem;
  transition: var(--transition-smooth);
  position: relative;
  overflow: hidden;
}

.card:hover {
  background-color: var(--bg-card-hover);
  border-color: var(--border-color-hover);
  transform: translateY(-5px);
}

.card-title {
  font-size: 1.5rem;
  margin-bottom: 1rem;
}

.card-description {
  font-size: 0.95rem;
  color: var(--text-secondary);
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--text-primary), transparent);
  transform: translateX(-100%);
  transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.card:hover::before {
  transform: translateX(100%);
}

/* Section Layout */
.section {
  padding: 8rem 0;
  position: relative;
}

.border-section {
  border-top: 1px solid var(--border-color);
}

.section-tag {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--text-secondary);
  margin-bottom: 1rem;
  display: block;
}

.section-title {
  font-size: 3rem;
  line-height: 1.1;
  margin-bottom: 1.5rem;
  max-width: 800px;
}

.section-desc {
  max-width: 600px;
  margin-bottom: 3.5rem;
  font-size: 1.15rem;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2.5rem;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

/* Navbar */
.header {
  position: sticky;
  top: 0;
  width: 100%;
  background-color: rgba(5, 5, 5, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
  z-index: 100;
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
}

.logo {
  font-family: var(--font-header);
  font-size: 1.8rem;
  font-weight: 800;
  color: #FFF;
  text-decoration: none;
  letter-spacing: -0.03em;
}

.desktop-nav {
  display: flex;
  gap: 2.2rem;
}

.nav-link {
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.mobile-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  color: #FFF;
}

.mobile-drawer {
  display: none;
  position: absolute;
  top: 80px;
  left: 0;
  width: 100%;
  height: calc(100vh - 80px);
  background-color: var(--bg-dark);
  border-top: 1px solid var(--border-color);
  padding: 2rem;
  z-index: 99;
}

.mobile-drawer.active {
  display: block;
}

.mobile-nav {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  align-items: center;
  padding-top: 1rem;
}

.mobile-nav-link {
  color: #FFF;
  font-size: 1.5rem;
  font-family: var(--font-header);
  text-decoration: none;
  font-weight: 700;
  text-transform: uppercase;
}

/* Footer */
.footer {
  background-color: #000000;
  border-top: 1px solid var(--border-color);
  padding: 6rem 0 3rem 0;
  margin-top: auto;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 4rem;
  margin-bottom: 5rem;
}

.footer-col {
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
}

.footer-title {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--text-primary);
  font-weight: 700;
}

.footer-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
}

.footer-link {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.95rem;
  transition: var(--transition-fast);
}

.footer-link:hover {
  color: #FFF;
}

.footer-bottom {
  border-top: 1px solid var(--border-color);
  padding-top: 2.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1.5rem;
}

/* Interactive Contact Form */
.form-group {
  margin-bottom: 2rem;
}

.form-label {
  display: block;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 0.5rem;
  color: var(--text-secondary);
}

.form-input {
  width: 100%;
  background-color: transparent;
  border: none;
  border-bottom: 1px solid var(--border-color);
  padding: 0.8rem 0;
  color: var(--text-primary);
  font-family: inherit;
  font-size: 1rem;
  outline: none;
  transition: var(--transition-fast);
}

.form-input:focus {
  border-bottom-color: var(--text-primary);
}

textarea.form-input {
  min-height: 120px;
  resize: vertical;
}

/* Accordion */
.faq-item {
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 1.5rem;
  margin-bottom: 1.5rem;
}

.faq-header {
  width: 100%;
  background: none;
  border: none;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  text-align: left;
  padding: 0.5rem 0;
  color: #FFF;
}

.faq-question {
  font-size: 1.15rem;
  font-weight: 600;
  line-height: 1.4;
}

.faq-answer {
  display: none;
  padding-top: 1rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.faq-item.active .faq-answer {
  display: block;
}

.faq-item.active .faq-icon {
  transform: rotate(180deg);
}

/* Tech Tabs */
.tech-tabs {
  display: flex;
  gap: 1rem;
  margin-bottom: 3rem;
  flex-wrap: wrap;
}

.tech-tab-btn {
  background: none;
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  padding: 0.8rem 1.8rem;
  cursor: pointer;
  font-family: var(--font-header);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  transition: var(--transition-fast);
}

.tech-tab-btn.active {
  background: #FFF;
  border-color: #FFF;
  color: #000;
}

.tech-panel {
  display: none;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 1.5rem;
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  padding: 3rem;
}

.tech-panel.active {
  display: grid;
}

.tech-item {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  color: #FFF;
  font-size: 0.95rem;
}

/* Media Queries */
@media (max-width: 968px) {
  .desktop-nav, .desktop-cta { display: none !important; }
  .mobile-toggle { display: block !important; }
  .grid-2, .grid-3, .footer-grid { grid-template-columns: 1fr !important; }
  .section-title { font-size: 2.2rem !important; }
  .section { padding: 5rem 0 !important; }
}