/**
 * AiLydian HUMAIN.ai Inspired Design System
 * Ultra Modern AI Platform with Modern Typography & Asana Colors
 */

/* ========== HUMAIN.AI INSPIRED ROOT VARIABLES ========== */
:root {
  /* === HUMAIN.AI + ASANA COLOR PALETTE === */
  --humain-primary: #0f1419;
  --humain-secondary: #1a1f26;
  --humain-accent: #00d9ff;
  --humain-success: #00c851;
  --humain-warning: #ffae42;
  --humain-error: #ff4444;
  --humain-info: #33b5e5;

  /* === ASANA WHITE + GREEN THEME === */
  --asana-white: #ffffff;
  --asana-off-white: #fafbfc;
  --asana-light-gray: #f6f7f8;
  --asana-medium-gray: #e8eaed;
  --asana-text-primary: #1d2129;
  --asana-text-secondary: #626f86;
  --asana-text-muted: #9ca6af;

  /* Asana Green Palette */
  --asana-green-primary: #8b0000;
  --asana-green-light: #c41e3a;
  --asana-green-lighter: #ff6b6b;
  --asana-green-accent: #ff9e9e;
  --asana-green-soft: #ffcdcd;
  --asana-green-ghost: #fff2f2;

  /* === AILYDIAN ORANGE ACCENT PALETTE === */
  --ailydian-orange-primary: #ff7300;
  --ailydian-orange-light: #ff8533;
  --ailydian-orange-dark: #e65f00;
  --ailydian-orange-glow: #ff9966;
  --ailydian-orange-soft: #ffedcc;
  --ailydian-orange-ghost: #fff8f0;

  /* === MODERN TYPOGRAPHY SYSTEM === */
  --font-platform: 'Inter', sans-serif;
  --font-mono: 'SF Mono', Monaco, Inconsolata, 'Roboto Mono', 'Source Code Pro', monospace;
  --font-display: 'Inter', sans-serif;

  /* Font Weights - Platform Style */
  --font-weight-light: 300;
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;
  --font-weight-heavy: 800;

  /* Font Sizes - Responsive Scale */
  --text-xs: 0.75rem; /* 12px */
  --text-sm: 0.875rem; /* 14px */
  --text-base: 1rem; /* 16px */
  --text-lg: 1.125rem; /* 18px */
  --text-xl: 1.25rem; /* 20px */
  --text-2xl: 1.5rem; /* 24px */
  --text-3xl: 1.875rem; /* 30px */
  --text-4xl: 2.25rem; /* 36px */
  --text-5xl: 3rem; /* 48px */
  --text-6xl: 3.75rem; /* 60px */
  --text-7xl: 4.5rem; /* 72px */
  --text-8xl: 6rem; /* 96px */
  --text-9xl: 8rem; /* 128px */

  /* === SPACING SYSTEM === */
  --space-px: 1px;
  --space-0: 0;
  --space-1: 0.25rem; /* 4px */
  --space-2: 0.5rem; /* 8px */
  --space-3: 0.75rem; /* 12px */
  --space-4: 1rem; /* 16px */
  --space-5: 1.25rem; /* 20px */
  --space-6: 1.5rem; /* 24px */
  --space-8: 2rem; /* 32px */
  --space-10: 2.5rem; /* 40px */
  --space-12: 3rem; /* 48px */
  --space-16: 4rem; /* 64px */
  --space-20: 5rem; /* 80px */
  --space-24: 6rem; /* 96px */
  --space-32: 8rem; /* 128px */

  /* === BORDER RADIUS === */
  --radius-none: 0;
  --radius-sm: 0.125rem; /* 2px */
  --radius: 0.25rem; /* 4px */
  --radius-md: 0.375rem; /* 6px */
  --radius-lg: 0.5rem; /* 8px */
  --radius-xl: 0.75rem; /* 12px */
  --radius-2xl: 1rem; /* 16px */
  --radius-3xl: 1.5rem; /* 24px */
  --radius-full: 9999px;

  /* === SHADOWS - MODERN ELEVATION === */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  --shadow-inner: inset 0 2px 4px 0 rgba(0, 0, 0, 0.06);

  /* === GRADIENTS - ASANA INSPIRED === */
  --gradient-primary: linear-gradient(
    135deg,
    var(--asana-green-primary) 0%,
    var(--asana-green-light) 100%
  );
  --gradient-soft: linear-gradient(
    135deg,
    var(--asana-green-soft) 0%,
    var(--asana-green-ghost) 100%
  );
  --gradient-accent: linear-gradient(
    135deg,
    var(--asana-green-accent) 0%,
    var(--asana-green-lighter) 100%
  );
  --gradient-background: linear-gradient(
    180deg,
    var(--asana-white) 0%,
    var(--asana-off-white) 100%
  );

  /* Orange Accent Gradients */
  --gradient-orange: linear-gradient(
    135deg,
    var(--ailydian-orange-dark) 0%,
    var(--ailydian-orange-primary) 50%,
    var(--ailydian-orange-light) 100%
  );
  --gradient-orange-soft: linear-gradient(
    135deg,
    var(--ailydian-orange-soft) 0%,
    var(--ailydian-orange-ghost) 100%
  );
  --gradient-mixed: linear-gradient(
    135deg,
    var(--asana-green-primary) 0%,
    var(--ailydian-orange-primary) 100%
  );

  /* === ANIMATIONS & TRANSITIONS === */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 300ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);

  /* === Z-INDEX SCALE === */
  --z-dropdown: 1000;
  --z-sticky: 1020;
  --z-fixed: 1030;
  --z-modal-backdrop: 1040;
  --z-modal: 1050;
  --z-popover: 1060;
  --z-tooltip: 1070;
  --z-toast: 1080;
}

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

*::before,
*::after {
  box-sizing: border-box;
}

html {
  line-height: 1.15;
  -webkit-text-size-adjust: 100%;
  tab-size: 4;
}

body {
  font-family: var(--font-platform);
  font-weight: var(--font-weight-normal);
  line-height: 1.6;
  color: var(--asana-text-primary);
  background: var(--asana-white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

/* ========== HUMAIN.AI INSPIRED LAYOUT ========== */
.humain-container {
  min-height: 100vh;
  background: var(--gradient-background);
  position: relative;
  overflow-x: hidden;
}

/* Animated Background Dots - Asana Style */
.floating-dots {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 1;
}

.floating-dots::before,
.floating-dots::after {
  content: '';
  position: absolute;
  border-radius: 50%;
  background: var(--asana-green-soft);
  opacity: 0.3;
  animation: floatAnimation 20s infinite ease-in-out;
}

.floating-dots::before {
  width: 300px;
  height: 300px;
  top: 10%;
  left: 5%;
  animation-delay: 0s;
  background: radial-gradient(circle, var(--asana-green-ghost) 0%, transparent 70%);
}

.floating-dots::after {
  width: 200px;
  height: 200px;
  top: 60%;
  right: 10%;
  animation-delay: 10s;
  background: radial-gradient(circle, var(--asana-green-soft) 0%, transparent 70%);
}

/* Additional floating elements */
.floating-dots-extra {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 1;
}

.floating-dots-extra::before {
  content: '';
  position: absolute;
  width: 150px;
  height: 150px;
  top: 30%;
  right: 20%;
  border-radius: 50%;
  background: radial-gradient(circle, var(--asana-green-lighter) 0%, transparent 60%);
  opacity: 0.2;
  animation: floatAnimation 15s infinite ease-in-out reverse;
}

.floating-dots-extra::after {
  content: '';
  position: absolute;
  width: 100px;
  height: 100px;
  bottom: 20%;
  left: 20%;
  border-radius: 50%;
  background: radial-gradient(circle, var(--asana-green-accent) 0%, transparent 50%);
  opacity: 0.25;
  animation: floatAnimation 25s infinite ease-in-out;
  animation-delay: 5s;
}

@keyframes floatAnimation {
  0%,
  100% {
    transform: translate(0, 0) scale(1);
    opacity: 0.3;
  }
  25% {
    transform: translate(20px, -30px) scale(1.1);
    opacity: 0.4;
  }
  50% {
    transform: translate(-15px, 20px) scale(0.9);
    opacity: 0.2;
  }
  75% {
    transform: translate(30px, 10px) scale(1.05);
    opacity: 0.35;
  }
}

/* ========== HUMAIN.AI HEADER STYLE ========== */
.humain-header {
  position: relative;
  z-index: 10;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--asana-medium-gray);
  padding: var(--space-4) var(--space-6);
}

.humain-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1200px;
  margin: 0 auto;
}

/* AiLydian Logo - HUMAIN.ai Style */
.ailydian-logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
  color: var(--asana-text-primary);
}

.ailydian-logo-text {
  font-family: 'Inter', 'Helvetica Neue', Arial, sans-serif !important;
  font-size: var(--text-2xl);
  font-weight: var(--font-weight-bold);
  letter-spacing: -0.02em;
  text-transform: uppercase;
}

.ailydian-logo-text .letter-a {
  color: var(--asana-green-primary);
  font-size: var(--text-3xl);
  font-weight: var(--font-weight-heavy);
  margin-right: -2px;
}

.ailydian-logo-text .letter-l {
  color: var(--asana-green-light);
  font-size: var(--text-3xl);
  font-weight: var(--font-weight-heavy);
  margin-right: -1px;
}

.ailydian-beta {
  display: inline-block;
  background: var(--gradient-primary);
  color: white;
  font-size: var(--text-xs);
  font-weight: var(--font-weight-semibold);
  padding: var(--space-1) var(--space-2);
  border-radius: var(--radius);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-left: var(--space-2);
  vertical-align: top;
  margin-top: var(--space-1);
}

/* Navigation Menu */
.humain-nav-menu {
  display: flex;
  align-items: center;
  gap: var(--space-8);
  list-style: none;
}

.humain-nav-item {
  position: relative;
}

.humain-nav-link {
  font-family: var(--font-platform);
  font-size: var(--text-base);
  font-weight: var(--font-weight-medium);
  color: var(--asana-text-secondary);
  text-decoration: none;
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  position: relative;
}

.humain-nav-link:hover {
  color: var(--asana-green-primary);
  background: var(--asana-green-ghost);
}

.humain-nav-link.active {
  color: var(--asana-green-primary);
  font-weight: var(--font-weight-semibold);
}

/* ========== HUMAIN.AI HERO SECTION ========== */
.humain-hero {
  position: relative;
  z-index: 5;
  text-align: center;
  padding: var(--space-32) var(--space-6);
  max-width: 1200px;
  margin: 0 auto;
}

.humain-hero-title {
  font-family: 'Inter', 'Helvetica Neue', Arial, sans-serif !important;
  font-size: var(--text-9xl);
  font-weight: var(--font-weight-heavy);
  line-height: 0.9;
  letter-spacing: -0.04em;
  color: var(--asana-text-primary);
  margin-bottom: var(--space-8);
  text-transform: uppercase;
}

.humain-hero-title .letter-ai {
  color: var(--asana-green-primary);
  position: relative;
}

.humain-hero-title .letter-ai::after {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 0;
  width: 100%;
  height: 6px;
  background: var(--gradient-primary);
  border-radius: var(--radius-full);
}

.humain-hero-subtitle {
  font-family: var(--font-platform);
  font-size: var(--text-2xl);
  font-weight: var(--font-weight-medium);
  line-height: 1.4;
  color: var(--asana-text-primary);
  margin-bottom: var(--space-6);
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.humain-hero-description {
  font-family: var(--font-platform);
  font-size: var(--text-lg);
  color: var(--asana-text-secondary);
  line-height: 1.6;
  max-width: 600px;
  margin: 0 auto var(--space-12);
}

/* ========== MODERN BUTTONS ========== */
.btn-humain {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  font-family: var(--font-platform);
  font-size: var(--text-base);
  font-weight: var(--font-weight-semibold);
  padding: var(--space-4) var(--space-8);
  border-radius: var(--radius-xl);
  border: none;
  cursor: pointer;
  transition: all var(--transition-normal);
  text-decoration: none;
  position: relative;
  overflow: hidden;
}

.btn-humain-primary {
  background: var(--gradient-primary);
  color: white;
  box-shadow: var(--shadow-lg);
}

.btn-humain-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-xl);
}

.btn-humain-secondary {
  background: var(--asana-white);
  color: var(--asana-green-primary);
  border: 2px solid var(--asana-green-primary);
  box-shadow: var(--shadow);
}

.btn-humain-secondary:hover {
  background: var(--asana-green-ghost);
  transform: translateY(-1px);
  box-shadow: var(--shadow-lg);
}

/* Orange Accent Buttons */
.btn-humain-orange {
  background: var(--gradient-orange);
  color: white;
  box-shadow: var(--shadow-lg);
}

.btn-humain-orange:hover {
  transform: translateY(-2px);
  box-shadow: 0 15px 40px rgba(255, 115, 0, 0.4);
}

.btn-humain-orange-outline {
  background: white;
  color: var(--ailydian-orange-primary);
  border: 2px solid var(--ailydian-orange-primary);
}

.btn-humain-orange-outline:hover {
  background: var(--ailydian-orange-ghost);
  transform: translateY(-1px);
}

/* ========== CHAT INTERFACE - HUMAIN.AI STYLE ========== */
.humain-chat-container {
  position: relative;
  z-index: 10;
  max-width: 800px;
  margin: 0 auto;
  padding: var(--space-6);
  background: rgba(255, 255, 255, 0.95);
  border-radius: var(--radius-2xl);
  box-shadow: var(--shadow-2xl);
  backdrop-filter: blur(10px);
  border: 1px solid var(--asana-medium-gray);
}

.humain-chat-input {
  width: 100%;
  font-family: var(--font-platform);
  font-size: var(--text-lg);
  padding: var(--space-5) var(--space-6);
  border: 2px solid var(--asana-medium-gray);
  border-radius: var(--radius-xl);
  background: var(--asana-white);
  color: var(--asana-text-primary);
  resize: none;
  outline: none;
  transition: all var(--transition-fast);
}

.humain-chat-input:focus {
  border-color: var(--asana-green-primary);
  box-shadow: 0 0 0 3px rgba(139, 0, 0, 0.1);
}

.humain-chat-input::placeholder {
  color: var(--asana-text-muted);
  font-weight: var(--font-weight-normal);
}

/* ========== CAPABILITY CARDS ========== */
.humain-capabilities {
  position: relative;
  z-index: 5;
  padding: var(--space-24) var(--space-6);
  max-width: 1200px;
  margin: 0 auto;
}

.humain-capabilities-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-8);
  margin-top: var(--space-16);
}

.humain-capability-card {
  background: rgba(255, 255, 255, 0.95);
  border: 1px solid var(--asana-medium-gray);
  border-radius: var(--radius-2xl);
  padding: var(--space-8);
  transition: all var(--transition-normal);
  cursor: pointer;
  position: relative;
  overflow: hidden;
  backdrop-filter: blur(10px);
}

.humain-capability-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-2xl);
  border-color: var(--asana-green-primary);
}

.humain-capability-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: var(--gradient-primary);
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.humain-capability-card:hover::before {
  opacity: 1;
}

.humain-capability-icon {
  width: 48px;
  height: 48px;
  background: var(--gradient-primary);
  border-radius: var(--radius-xl);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: var(--text-xl);
  margin-bottom: var(--space-6);
}

.humain-capability-title {
  font-family: 'Inter', 'Helvetica Neue', Arial, sans-serif !important;
  font-size: var(--text-xl);
  font-weight: var(--font-weight-bold);
  color: var(--asana-text-primary);
  margin-bottom: var(--space-3);
}

.humain-capability-description {
  font-family: var(--font-platform);
  font-size: var(--text-base);
  color: var(--asana-text-secondary);
  line-height: 1.6;
  margin-bottom: var(--space-6);
}

.humain-capability-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.humain-tag {
  font-family: var(--font-platform);
  font-size: var(--text-sm);
  font-weight: var(--font-weight-medium);
  padding: var(--space-1) var(--space-3);
  background: var(--asana-green-ghost);
  color: var(--asana-green-primary);
  border-radius: var(--radius-full);
  border: 1px solid var(--asana-green-soft);
}

/* ========== RESPONSIVE DESIGN ========== */
@media (max-width: 768px) {
  .humain-hero-title {
    font-size: var(--text-6xl);
  }

  .humain-hero-subtitle {
    font-size: var(--text-xl);
  }

  .humain-nav-menu {
    gap: var(--space-4);
  }

  .humain-capabilities-grid {
    grid-template-columns: 1fr;
    gap: var(--space-6);
  }

  .floating-dots::before,
  .floating-dots::after,
  .floating-dots-extra::before,
  .floating-dots-extra::after {
    width: 100px !important;
    height: 100px !important;
  }
}

@media (max-width: 480px) {
  .humain-hero {
    padding: var(--space-20) var(--space-4);
  }

  .humain-hero-title {
    font-size: var(--text-5xl);
  }

  .ailydian-logo-text {
    font-size: var(--text-lg);
  }

  .ailydian-logo-text .letter-a {
    font-size: var(--text-xl);
  }
}

/* ========== UTILITY CLASSES ========== */
.text-center {
  text-align: center;
}
.text-left {
  text-align: left;
}
.text-right {
  text-align: right;
}

.font-light {
  font-weight: var(--font-weight-light);
}
.font-normal {
  font-weight: var(--font-weight-normal);
}
.font-medium {
  font-weight: var(--font-weight-medium);
}
.font-semibold {
  font-weight: var(--font-weight-semibold);
}
.font-bold {
  font-weight: var(--font-weight-bold);
}
.font-heavy {
  font-weight: var(--font-weight-heavy);
}

.hidden {
  display: none;
}
.block {
  display: block;
}
.inline {
  display: inline;
}
.inline-block {
  display: inline-block;
}
.flex {
  display: flex;
}
.inline-flex {
  display: inline-flex;
}
.grid {
  display: grid;
}

.relative {
  position: relative;
}
.absolute {
  position: absolute;
}
.fixed {
  position: fixed;
}
.sticky {
  position: sticky;
}

.z-10 {
  z-index: 10;
}
.z-20 {
  z-index: 20;
}
.z-30 {
  z-index: 30;
}
.z-40 {
  z-index: 40;
}
.z-50 {
  z-index: 50;
}