/* ========================================
   TRISENO SYSTEMS - DESIGN SYSTEM
   Premium Modern Aesthetic
   ======================================== */

/* === IMPORTS === */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

/* === CSS VARIABLES === */
:root {
  /* Colors - Ultra Dark Theme */
  --color-bg-primary: #050810;
  --color-bg-secondary: #0a0e1a;
  --color-bg-card: rgba(255, 255, 255, 0.03);
  --color-bg-card-hover: rgba(255, 255, 255, 0.06);

  --color-accent-cyan: #00e5ff;
  --color-accent-blue: #0077ff;
  --color-accent-purple: #9d5cff;

  --color-text-primary: rgba(255, 255, 255, 0.95);
  --color-text-secondary: rgba(255, 255, 255, 0.7);
  --color-text-muted: rgba(255, 255, 255, 0.5);

  /* Gradients */
  --gradient-primary: linear-gradient(135deg, var(--color-accent-cyan), var(--color-accent-blue));
  --gradient-secondary: linear-gradient(135deg, var(--color-accent-purple), var(--color-accent-blue));
  --gradient-bg: linear-gradient(180deg, var(--color-bg-primary) 0%, var(--color-bg-secondary) 100%);

  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-2xl: 4rem;
  --spacing-3xl: 6rem;

  /* Typography - Enhanced Sizes */
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-size-xs: 0.875rem;
  --font-size-sm: 1rem;
  --font-size-md: 1.125rem;
  --font-size-lg: 1.5rem;
  --font-size-xl: 2rem;
  --font-size-2xl: 2.5rem;
  --font-size-3xl: 3.5rem;
  --font-size-4xl: 5.5rem;
  --font-size-5xl: 6.5rem;

  --line-height-tight: 1.2;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.7;

  /* Effects - Enhanced Glows */
  --border-radius-sm: 0.5rem;
  --border-radius-md: 1rem;
  --border-radius-lg: 1.5rem;
  --border-radius-pill: 50px;

  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.2);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.4);
  --shadow-glow: 0 0 60px rgba(0, 229, 255, 0.4);
  --shadow-glow-strong: 0 0 80px rgba(0, 229, 255, 0.6), 0 0 120px rgba(0, 119, 255, 0.3);

  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-sm);
  line-height: var(--line-height-normal);
  color: var(--color-text-primary);
  background: var(--gradient-bg);
  background-attachment: fixed;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* === TYPOGRAPHY === */
h1,
h2,
h3,
h4,
h5,
h6 {
  font-weight: 700;
  line-height: var(--line-height-tight);
  margin-bottom: var(--spacing-md);
}

h1 {
  font-size: var(--font-size-4xl);
}

h2 {
  font-size: var(--font-size-3xl);
}

h3 {
  font-size: var(--font-size-2xl);
}

h4 {
  font-size: var(--font-size-xl);
}

h5 {
  font-size: var(--font-size-lg);
}

h6 {
  font-size: var(--font-size-md);
}

p {
  margin-bottom: var(--spacing-md);
  color: var(--color-text-secondary);
  line-height: var(--line-height-relaxed);
}

a {
  color: var(--color-accent-cyan);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-accent-blue);
}

/* === LAYOUT === */
.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

.section {
  padding: var(--spacing-3xl) 0;
  position: relative;
}

.section-header {
  text-align: center;
  margin-bottom: var(--spacing-3xl);
}

.section-title {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: var(--spacing-sm);
}

.section-subtitle {
  font-size: var(--font-size-md);
  color: var(--color-text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

/* === NAVIGATION === */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(10, 14, 39, 0.8);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  transition: all var(--transition-normal);
}

.navbar.scrolled {
  background: rgba(10, 14, 39, 0.95);
  box-shadow: var(--shadow-md);
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-md) var(--spacing-lg);
  max-width: 1280px;
  margin: 0 auto;
}

.logo {
  font-size: var(--font-size-lg);
  font-weight: 800;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav-links {
  display: flex;
  gap: var(--spacing-xl);
  list-style: none;
}

.nav-links a {
  color: var(--color-text-secondary);
  font-weight: 500;
  transition: color var(--transition-fast);
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient-primary);
  transition: width var(--transition-normal);
}

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

.nav-links a:hover::after {
  width: 100%;
}

/* === BUTTONS - Pill-Shaped with Glow === */
.btn {
  display: inline-block;
  padding: 1rem 2.5rem;
  border-radius: var(--border-radius-pill);
  font-weight: 700;
  font-size: var(--font-size-md);
  text-align: center;
  cursor: pointer;
  border: none;
  transition: all var(--transition-normal);
  text-decoration: none;
  position: relative;
}

.btn-primary {
  background: var(--gradient-primary);
  color: white;
  box-shadow: 0 4px 20px rgba(0, 229, 255, 0.4), 0 8px 40px rgba(0, 119, 255, 0.2);
}

.btn-primary:hover {
  transform: translateY(-3px) scale(1.02);
  box-shadow: var(--shadow-glow-strong);
}

.btn-secondary {
  background: rgba(0, 229, 255, 0.05);
  color: var(--color-accent-cyan);
  border: 2px solid rgba(0, 229, 255, 0.3);
  backdrop-filter: blur(10px);
}

.btn-secondary:hover {
  background: rgba(0, 229, 255, 0.15);
  border-color: var(--color-accent-cyan);
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 0 30px rgba(0, 229, 255, 0.3);
}

/* === CARDS === */
.card {
  background: var(--color-bg-card);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-xl);
  transition: all var(--transition-normal);
}

.card:hover {
  background: var(--color-bg-card-hover);
  transform: translateY(-10px) scale(1.02);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.5), 0 0 40px rgba(0, 229, 255, 0.2);
  border-color: rgba(0, 229, 255, 0.5);
}

.card-icon {
  width: 60px;
  height: 60px;
  background: var(--gradient-primary);
  border-radius: var(--border-radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--spacing-md);
  font-size: var(--font-size-xl);
}

.card-title {
  font-size: var(--font-size-lg);
  margin-bottom: var(--spacing-sm);
}

.card-description {
  color: var(--color-text-secondary);
  line-height: var(--line-height-relaxed);
}

/* === HERO SECTION === */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding-top: 80px;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, rgba(0, 212, 255, 0.15) 0%, transparent 70%);
  border-radius: 50%;
  animation: pulse 8s ease-in-out infinite;
}

@keyframes pulse {

  0%,
  100% {
    transform: scale(1);
    opacity: 0.5;
  }

  50% {
    transform: scale(1.1);
    opacity: 0.3;
  }
}

.hero-content {
  max-width: 800px;
  z-index: 1;
}

.hero-title {
  font-size: var(--font-size-5xl);
  font-weight: 900;
  line-height: 1.1;
  margin-bottom: var(--spacing-lg);
  letter-spacing: -0.02em;
}

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

.hero-subtitle {
  font-size: var(--font-size-md);
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-xl);
  line-height: var(--line-height-relaxed);
}

.hero-buttons {
  display: flex;
  gap: var(--spacing-md);
  flex-wrap: wrap;
}

/* === ANIMATED BACKGROUND === */
.hero-background {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  z-index: 0;
  opacity: 0.85;
}

.animated-line {
  position: absolute;
  width: 3px;
  height: 400px;
  background: linear-gradient(180deg,
      transparent 0%,
      var(--color-accent-cyan) 20%,
      var(--color-accent-blue) 50%,
      var(--color-accent-cyan) 80%,
      transparent 100%);
  filter: blur(1.5px);
  box-shadow: 0 0 30px var(--color-accent-cyan),
    0 0 60px var(--color-accent-blue),
    0 0 90px rgba(0, 229, 255, 0.3);
}

/* Individual line positions and animations */
.line-1 {
  top: -200px;
  left: 10%;
  height: 500px;
  animation: flowDown1 12s linear infinite;
  animation-delay: 0s;
}

.line-2 {
  top: -300px;
  left: 30%;
  height: 600px;
  animation: flowDown2 15s linear infinite;
  animation-delay: -3s;
}

.line-3 {
  top: -250px;
  left: 50%;
  height: 450px;
  animation: flowDown3 10s linear infinite;
  animation-delay: -6s;
}

.line-4 {
  top: -350px;
  right: 30%;
  height: 550px;
  animation: flowDown4 13s linear infinite;
  animation-delay: -9s;
}

.line-5 {
  top: -200px;
  right: 10%;
  height: 400px;
  animation: flowDown5 14s linear infinite;
  animation-delay: -12s;
}

.line-6 {
  top: -280px;
  left: 20%;
  height: 520px;
  animation: flowDown1 11s linear infinite;
  animation-delay: -5s;
}

.line-7 {
  top: -220px;
  left: 70%;
  height: 480px;
  animation: flowDown3 13s linear infinite;
  animation-delay: -8s;
}

.line-8 {
  top: -300px;
  right: 20%;
  height: 500px;
  animation: flowDown2 12s linear infinite;
  animation-delay: -10s;
}

/* Flow animations */
@keyframes flowDown1 {
  0% {
    transform: translateY(0) translateX(0) rotate(15deg);
    opacity: 0;
  }

  10% {
    opacity: 1;
  }

  90% {
    opacity: 1;
  }

  100% {
    transform: translateY(120vh) translateX(50px) rotate(15deg);
    opacity: 0;
  }
}

@keyframes flowDown2 {
  0% {
    transform: translateY(0) translateX(0) rotate(-10deg);
    opacity: 0;
  }

  10% {
    opacity: 1;
  }

  90% {
    opacity: 1;
  }

  100% {
    transform: translateY(120vh) translateX(-30px) rotate(-10deg);
    opacity: 0;
  }
}

@keyframes flowDown3 {
  0% {
    transform: translateY(0) translateX(0) rotate(20deg);
    opacity: 0;
  }

  10% {
    opacity: 1;
  }

  90% {
    opacity: 1;
  }

  100% {
    transform: translateY(120vh) translateX(60px) rotate(20deg);
    opacity: 0;
  }
}

@keyframes flowDown4 {
  0% {
    transform: translateY(0) translateX(0) rotate(-15deg);
    opacity: 0;
  }

  10% {
    opacity: 1;
  }

  90% {
    opacity: 1;
  }

  100% {
    transform: translateY(120vh) translateX(-40px) rotate(-15deg);
    opacity: 0;
  }
}

@keyframes flowDown5 {
  0% {
    transform: translateY(0) translateX(0) rotate(12deg);
    opacity: 0;
  }

  10% {
    opacity: 1;
  }

  90% {
    opacity: 1;
  }

  100% {
    transform: translateY(120vh) translateX(35px) rotate(12deg);
    opacity: 0;
  }
}

/* === GRID LAYOUTS === */
.grid {
  display: grid;
  gap: var(--spacing-xl);
}

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

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

.grid-4 {
  grid-template-columns: repeat(4, 1fr);
}

/* === FLAGSHIP SECTION === */
.flagship {
  background: rgba(0, 102, 255, 0.05);
  border-top: 1px solid rgba(0, 212, 255, 0.2);
  border-bottom: 1px solid rgba(0, 212, 255, 0.2);
}

.flagship-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-3xl);
  align-items: center;
}

.flagship-text h2 {
  margin-bottom: var(--spacing-md);
}

.flagship-features {
  list-style: none;
  margin: var(--spacing-lg) 0;
}

.flagship-features li {
  padding: var(--spacing-sm);
  margin-bottom: var(--spacing-sm);
  color: var(--color-text-secondary);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.flagship-features li::before {
  content: '✓';
  color: var(--color-accent-cyan);
  font-weight: bold;
  font-size: var(--font-size-lg);
}

.flagship-visual {
  background: var(--color-bg-card);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-2xl);
  position: relative;
  overflow: hidden;
}

.flagship-visual::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: conic-gradient(from 0deg,
      transparent 0deg,
      var(--color-accent-cyan) 90deg,
      transparent 180deg);
  animation: rotate 10s linear infinite;
  opacity: 0.1;
}

@keyframes rotate {
  100% {
    transform: rotate(360deg);
  }
}

/* === TESTIMONIAL === */
.testimonial {
  background: var(--color-bg-card);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-xl);
  text-align: center;
}

.testimonial-quote {
  font-size: var(--font-size-md);
  font-style: italic;
  margin-bottom: var(--spacing-md);
  color: var(--color-text-secondary);
}

.testimonial-author {
  font-weight: 600;
  color: var(--color-text-primary);
}

.testimonial-role {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
}

/* === CONTACT SECTION === */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-3xl);
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}

.contact-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  padding: var(--spacing-md);
  background: var(--color-bg-card);
  border-radius: var(--border-radius-md);
  border: 1px solid rgba(255, 255, 255, 0.1);
  transition: all var(--transition-normal);
}

.contact-item:hover {
  background: var(--color-bg-card-hover);
  border-color: rgba(0, 212, 255, 0.3);
  transform: translateX(8px);
}

.contact-icon {
  width: 50px;
  height: 50px;
  background: var(--gradient-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-lg);
  flex-shrink: 0;
}

/* === FOOTER === */
.footer {
  background: var(--color-bg-secondary);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: var(--spacing-xl) 0;
  text-align: center;
}

.footer-content {
  color: var(--color-text-muted);
  font-size: var(--font-size-xs);
}

/* === ANIMATIONS === */
.fade-in {
  animation: fadeIn 0.8s ease-out;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(30px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.scroll-reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.8s ease-out;
}

.scroll-reveal.revealed {
  opacity: 1;
  transform: translateY(0);
}

/* === RESPONSIVE === */
@media (max-width: 1024px) {
  :root {
    --font-size-4xl: 3.5rem;
    --font-size-3xl: 2.5rem;
  }

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

  .flagship-content {
    grid-template-columns: 1fr;
  }

  .contact-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  :root {
    --font-size-4xl: 2.5rem;
    --font-size-3xl: 2rem;
    --spacing-3xl: 4rem;
  }

  .nav-links {
    display: none;
  }

  .grid-2,
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
  }

  .hero-buttons {
    flex-direction: column;
  }

  .btn {
    width: 100%;
  }
}

@media (max-width: 480px) {
  :root {
    --font-size-4xl: 2rem;
    --spacing-lg: 1rem;
  }

  .container {
    padding: 0 var(--spacing-md);
  }
}