/* CSS Design System for OptimaMind AI */

:root {
  --color-primary: #6366f1;       /* Indigo */
  --color-secondary: #a78bfa;     /* Light Purple */
  --color-accent: #f43f5e;        /* Rose Accent */
  --color-dark: #0b0f19;          /* Deep Space Navy */
  --color-light: #f8fafc;         /* Crisp Ice White */
  --color-grey: #f1f5f9;          /* Slate Light Grey */
  --color-muted: #64748b;         /* Slate Grey */
  
  --font-title: 'Cabinet Grotesk', sans-serif;
  --font-body: 'Plus Jakarta Sans', sans-serif;
  
  --transition-smooth: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  --border-radius-lg: 16px;
  --border-radius-md: 10px;
  --glass-bg: rgba(255, 255, 255, 0.08);
  --glass-border: rgba(255, 255, 255, 0.12);
}

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

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

body {
  font-family: var(--font-body);
  background-color: var(--color-light);
  color: var(--color-dark);
  line-height: 1.6;
}

h1, h2, h3, h4 {
  font-family: var(--font-title);
  font-weight: 800;
  color: var(--color-dark);
}

a {
  color: inherit;
  text-decoration: none;
  transition: var(--transition-smooth);
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.mini-container {
  max-width: 700px;
}

.section {
  padding: 100px 0;
}

.bg-light {
  background-color: var(--color-grey);
}

.bg-dark {
  background-color: var(--color-dark);
  color: var(--color-light);
}

.text-white {
  color: var(--color-light);
}

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

.text-primary {
  color: var(--color-primary);
}

.text-secondary {
  color: var(--color-secondary);
}

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

.section-tagline {
  display: block;
  font-size: 0.8rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: 12px;
  font-weight: 700;
}

.tagline-light {
  color: var(--color-secondary);
}

.section-title {
  font-size: 2.5rem;
  margin-bottom: 20px;
  letter-spacing: -0.02em;
}

.section-desc {
  max-width: 550px;
  margin: 0 auto 40px;
  color: var(--color-muted);
  font-size: 1.05rem;
}

.lead-text {
  font-size: 1.2rem;
  font-weight: 400;
  color: var(--color-muted);
  margin-bottom: 24px;
}

/* Grids */
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 60px;
  align-items: center;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 24px;
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 600;
  border-radius: var(--border-radius-md);
  border: none;
  cursor: pointer;
  transition: var(--transition-smooth);
}

.btn-primary {
  background-color: var(--color-primary);
  color: var(--color-light);
}

.btn-primary:hover {
  background-color: #4f46e5;
  transform: translateY(-2px);
}

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

.btn-secondary:hover {
  background-color: var(--color-primary);
  color: var(--color-light);
}

.btn-block {
  display: flex;
  width: 100%;
}

/* Header Navbar */
.header {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 90px;
  z-index: 100;
  display: flex;
  align-items: center;
}

.header-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.brand-logo {
  font-family: var(--font-title);
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--color-light);
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo-node {
  width: 16px;
  height: 16px;
  background-color: var(--color-primary);
  border-radius: 50%;
  position: relative;
}

.logo-node::after {
  content: '';
  position: absolute;
  width: 32px;
  height: 32px;
  border: 1px solid var(--color-secondary);
  border-radius: 50%;
  top: -8px;
  left: -8px;
}

.logo-accent {
  color: var(--color-secondary);
}

.menu-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--color-light);
  cursor: pointer;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-link {
  font-size: 0.95rem;
  font-weight: 500;
  color: rgba(255,255,255,0.7);
}

.nav-link:hover {
  color: var(--color-light);
}

.btn-nav {
  font-size: 0.85rem;
  padding: 8px 16px;
}

/* Hero Section */
.hero-section {
  background-color: var(--color-dark);
  color: var(--color-light);
  min-height: 100vh;
  padding-top: 130px;
  padding-bottom: 80px;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  /* futuristic glow grids */
  background-image: radial-gradient(circle at 10% 20%, rgba(99, 102, 241, 0.15) 0%, transparent 40%),
                    radial-gradient(circle at 90% 80%, rgba(167, 139, 250, 0.15) 0%, transparent 40%);
}

.hero-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 60px;
}

.hero-content {
  flex: 1.1;
  max-width: 580px;
}

.hero-tagline {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  background-color: rgba(99,102,241,0.15);
  color: var(--color-secondary);
  padding: 6px 12px;
  border-radius: 4px;
  margin-bottom: 20px;
}

.hero-content h1 {
  color: var(--color-light);
  font-size: 3.5rem;
  line-height: 1.1;
  margin-bottom: 20px;
  letter-spacing: -0.03em;
}

.hero-desc {
  font-size: 1.15rem;
  opacity: 0.75;
  margin-bottom: 36px;
  font-weight: 300;
}

.hero-actions {
  display: flex;
  gap: 16px;
}

.hero-actions .btn-secondary {
  color: var(--color-light);
  border-color: rgba(255,255,255,0.3);
}

.hero-actions .btn-secondary:hover {
  background-color: rgba(255,255,255,0.05);
}

/* Dashboard Mockup Panel */
.hero-dashboard-box {
  flex: 0.9;
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
}

.dashboard-wrapper {
  position: relative;
  width: 100%;
  max-width: 440px;
  height: 480px;
  background-color: rgba(15,23,42,0.6);
  border: 1px solid var(--glass-border);
  border-radius: var(--border-radius-lg);
  overflow: visible;
  box-shadow: 0 30px 60px rgba(0,0,0,0.4);
}

.dashboard-bg-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: var(--border-radius-lg);
  opacity: 0.3;
}

/* Mock Card Floating Layouts */
.mock-card {
  position: absolute;
  background: rgba(15, 23, 42, 0.75);
  backdrop-filter: blur(12px);
  border: 1px solid var(--glass-border);
  border-radius: var(--border-radius-md);
  padding: 16px;
  box-shadow: 0 15px 30px rgba(0,0,0,0.3);
  z-index: 10;
  display: flex;
  flex-direction: column;
}

.mock-card-label {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  opacity: 0.6;
  display: flex;
  align-items: center;
  gap: 6px;
}

.mock-card-label span {
  font-size: 1rem;
}

.mock-card-value {
  font-family: var(--font-title);
  font-size: 2rem;
  font-weight: 800;
  margin: 4px 0;
  line-height: 1;
}

.val-unit {
  font-size: 0.8rem;
  font-family: var(--font-body);
  font-weight: 500;
  opacity: 0.6;
}

.mock-card-meta {
  font-size: 0.7rem;
  opacity: 0.5;
}

/* Card Positions & Layouts */
.mock-card-readiness {
  top: 10%;
  left: -15%;
  width: 200px;
}

.mock-card-speed {
  top: 45%;
  right: -12%;
  width: 180px;
}

.mock-icon-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.mock-icon-row span.material-icons {
  font-size: 2rem;
}

.mock-card-volume {
  bottom: 8%;
  left: -8%;
  width: 170px;
}

.mock-chart {
  display: flex;
  align-items: flex-end;
  gap: 6px;
  height: 50px;
  margin-top: 12px;
}

.mock-chart .bar {
  width: 100%;
  background-color: var(--color-primary);
  border-radius: 2px;
  transition: height 1.5s cubic-bezier(0.25, 0.8, 0.25, 1);
}

.mock-chart .bar:nth-child(even) {
  background-color: var(--color-secondary);
}

.mock-card-pipeline {
  bottom: -5%;
  right: 5%;
  width: 240px;
}

.pipeline-header {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  font-weight: 600;
  margin-bottom: 12px;
}

.pipeline-timeline {
  display: flex;
  height: 6px;
  background-color: rgba(255,255,255,0.1);
  border-radius: 3px;
  overflow: hidden;
  margin-bottom: 12px;
}

.timeline-segment {
  height: 100%;
}

.segment-awake { background-color: var(--color-accent); }
.segment-rem { background-color: var(--color-primary); }
.segment-core { background-color: var(--color-secondary); }
.segment-deep { background-color: #22c55e; }

.pipeline-legend {
  display: flex;
  justify-content: space-between;
  font-size: 0.65rem;
  opacity: 0.6;
}

.legend-dot {
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
}

.dot-awake { background-color: var(--color-accent); }
.dot-rem { background-color: var(--color-primary); }
.dot-core { background-color: var(--color-secondary); }
.dot-deep { background-color: #22c55e; }

/* Features Grid */
.features-grid {
  margin-top: 40px;
}

.feature-card {
  background-color: var(--color-white);
  padding: 40px;
  border-radius: var(--border-radius-lg);
  box-shadow: 0 10px 30px rgba(0,0,0,0.02);
  border: 1px solid rgba(0,0,0,0.02);
  transition: var(--transition-smooth);
}

.feature-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 40px rgba(99,102,241,0.06);
  border-color: rgba(99,102,241,0.15);
}

.feat-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 50px;
  height: 50px;
  background-color: rgba(99,102,241,0.08);
  border-radius: var(--border-radius-md);
  color: var(--color-primary);
  margin-bottom: 24px;
}

.feat-icon span {
  font-size: 1.8rem;
}

.feature-card h3 {
  font-size: 1.4rem;
  margin-bottom: 12px;
}

.feature-card p {
  font-size: 0.95rem;
  color: var(--color-muted);
}

/* About / Competencies */
.about-content {
  padding-right: 20px;
}

.capabilities-box {
  background-color: var(--color-grey);
  padding: 40px;
  border-radius: var(--border-radius-lg);
}

.capabilities-box h3 {
  font-size: 1.35rem;
  margin-bottom: 24px;
}

.comp-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.comp-item span {
  display: block;
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.comp-bar {
  height: 6px;
  background-color: rgba(0,0,0,0.06);
  border-radius: 3px;
  overflow: hidden;
}

.comp-progress {
  height: 100%;
  background-color: var(--color-primary);
  border-radius: 3px;
  transition: width 1.5s cubic-bezier(0.25, 0.8, 0.25, 1);
}

/* Simulator Card Widget */
.sim-card {
  background-color: #111827;
  border: 1px solid rgba(255,255,255,0.08);
  padding: 48px;
  border-radius: var(--border-radius-lg);
  display: flex;
  gap: 60px;
  margin-top: 40px;
}

.sim-inputs {
  flex: 1.1;
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.sim-group {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.sim-group label {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.95rem;
}

.sim-group label span {
  color: var(--color-secondary);
}

.range-slider {
  -webkit-appearance: none;
  width: 100%;
  height: 6px;
  border-radius: 3px;
  background: rgba(255,255,255,0.15);
  outline: none;
}

.range-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--color-primary);
  cursor: pointer;
  transition: transform 0.1s ease;
}

.range-slider::-webkit-slider-thumb:hover {
  transform: scale(1.2);
}

.sim-results {
  flex: 0.9;
  background: linear-gradient(135deg, rgba(99,102,241,0.1) 0%, rgba(167,139,250,0.1) 100%);
  border: 1px solid rgba(99,102,241,0.2);
  padding: 32px;
  border-radius: var(--border-radius-md);
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 24px;
}

.sim-metric {
  display: flex;
  flex-direction: column;
}

.sim-lbl {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  opacity: 0.6;
}

.sim-val {
  font-family: var(--font-title);
  font-size: 2.5rem;
  font-weight: 800;
  line-height: 1.1;
  margin-top: 4px;
}

.sim-val.text-primary { color: var(--color-secondary); }
.sim-val.text-secondary { color: #34d399; }

/* Testimonials */
.testimonial-header {
  padding-right: 20px;
}

.testimonial-card-box {
  background-color: var(--color-white);
  padding: 48px;
  border-radius: var(--border-radius-lg);
  box-shadow: 0 15px 30px rgba(0,0,0,0.02);
  border: 1px solid rgba(0,0,0,0.02);
  position: relative;
}

.quote-icon span {
  font-size: 3rem;
  color: rgba(99,102,241,0.15);
  position: absolute;
  top: 32px;
  left: 32px;
}

.quote-text {
  font-size: 1.15rem;
  font-weight: 400;
  color: var(--color-dark);
  margin-bottom: 24px;
  position: relative;
  z-index: 2;
  line-height: 1.6;
}

.user-meta h4 {
  font-size: 1.1rem;
  margin-bottom: 4px;
}

.user-meta p {
  font-size: 0.85rem;
  color: var(--color-muted);
}

/* Blog grid styling */
.blog-grid {
  margin-top: 40px;
}

.blog-card {
  background-color: var(--color-white);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: 0 10px 30px rgba(0,0,0,0.02);
  border: 1px solid rgba(0,0,0,0.02);
}

.blog-img-holder {
  height: 200px;
  overflow: hidden;
  position: relative;
  background-color: var(--color-grey);
}

.blog-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition-smooth);
}

.blog-card:hover .blog-img {
  transform: scale(1.05);
}

/* Sim patterns */
.blog-img-sim {
  width: 100%;
  height: 100%;
  opacity: 0.85;
}

.data-pattern-bg {
  background: linear-gradient(135deg, #4f46e5, #818cf8);
}

.oracle-pattern-bg {
  background: linear-gradient(135deg, #1e293b, #475569);
}

.blog-details {
  padding: 24px;
}

.blog-tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 12px;
}

.blog-title {
  font-size: 1.3rem;
  margin-bottom: 12px;
}

.blog-title a:hover {
  color: var(--color-primary);
}

.blog-excerpt {
  font-size: 0.9rem;
  color: var(--color-muted);
}

/* Demo Schedule Form */
.demo-form {
  background-color: var(--color-white);
  padding: 40px;
  border-radius: var(--border-radius-lg);
  box-shadow: 0 10px 30px rgba(0,0,0,0.02);
  margin-top: 40px;
}

.form-group {
  margin-bottom: 24px;
}

.form-group label {
  display: block;
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 8px;
}

.form-control {
  width: 100%;
  padding: 14px 16px;
  border: 1px solid rgba(0,0,0,0.08);
  border-radius: var(--border-radius-md);
  background-color: var(--color-grey);
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--color-dark);
  transition: var(--transition-smooth);
}

.form-control:focus {
  outline: none;
  border-color: var(--color-primary);
  background-color: #fff;
}

select.form-control {
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='%2364748b' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
  background-size: 16px;
}

.success-alert {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 16px;
  padding: 40px;
  background-color: #ecfdf5;
  border-left: 4px solid #059669;
  border-radius: var(--border-radius-lg);
  margin-top: 40px;
}

.success-alert span {
  font-size: 3rem;
  color: #059669;
}

.hidden {
  display: none !important;
}

/* Footer style */
.footer {
  background-color: var(--color-dark);
  color: var(--color-light);
  padding: 80px 0 40px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 40px;
  margin-bottom: 60px;
}

.footer-logo {
  font-family: var(--font-title);
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--color-light);
  display: inline-flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
}

.footer-desc {
  font-size: 0.9rem;
  opacity: 0.6;
  margin-bottom: 24px;
  max-width: 320px;
}

.socials-list {
  display: flex;
  gap: 12px;
}

.socials-list a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background-color: rgba(255,255,255,0.05);
  border-radius: var(--border-radius-md);
}

.socials-list a:hover {
  background-color: var(--color-primary);
}

.footer-links-col h4 {
  font-size: 0.85rem;
  color: var(--color-secondary);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 24px;
}

.footer-links-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-links-col ul li {
  font-size: 0.9rem;
  opacity: 0.7;
}

.footer-links-col ul a:hover {
  color: var(--color-secondary);
  padding-left: 4px;
}

.contact-info {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 0.9rem;
  opacity: 0.7;
  margin-bottom: 16px;
}

.contact-info span {
  color: var(--color-secondary);
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.05);
  padding-top: 40px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px;
  font-size: 0.85rem;
  opacity: 0.5;
}

.stats-row {
  display: flex;
  gap: 12px;
}

/* Responsiveness */
@media (max-width: 1024px) {
  .hero-container {
    flex-direction: column;
    text-align: center;
    gap: 60px;
  }
  
  .hero-content {
    max-width: 100%;
  }
  
  .hero-actions {
    justify-content: center;
  }
  
  .hero-dashboard-box {
    width: 100%;
    padding: 20px 0;
  }
  
  .sim-card {
    flex-direction: column;
    padding: 32px;
  }
  
  .grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .section {
    padding: 60px 0;
  }
  
  .hero-content h1 {
    font-size: 2.3rem;
  }
  
  .grid-2 {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  
  .about-content {
    padding-right: 0;
  }
  
  .capabilities-box {
    padding: 24px;
  }
  
  .grid-3 {
    grid-template-columns: 1fr;
  }
  
  .menu-toggle {
    display: block;
  }
  
  .nav-links {
    display: none;
    position: absolute;
    top: 90px;
    left: 0;
    right: 0;
    flex-direction: column;
    padding: 32px;
    background-color: var(--color-dark);
    border-bottom: 3px solid var(--color-primary);
  }
  
  .nav-links.active {
    display: flex;
  }
  
  .nav-links .btn {
    width: 100%;
  }
  
  .mock-card-readiness {
    left: 5%;
    top: 5%;
  }
  
  .mock-card-speed {
    right: 5%;
    top: 35%;
  }
  
  .mock-card-volume {
    left: 5%;
    bottom: 5%;
  }
  
  .mock-card-pipeline {
    right: 5%;
    bottom: -10%;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
}

/* ==========================================
   Utility & Form Feedback Styles
   ========================================== */

.hidden {
  display: none !important;
}

.success-alert {
  display: flex;
  align-items: center;
  gap: 14px;
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.12), rgba(167, 139, 250, 0.08));
  border: 1px solid rgba(99, 102, 241, 0.3);
  border-radius: var(--border-radius-md);
  padding: 24px 28px;
  color: var(--color-dark);
  font-weight: 500;
  margin-top: 24px;
  animation: fadeIn 0.4s ease;
}

.success-alert .material-icons {
  font-size: 2rem;
  color: var(--color-primary);
  flex-shrink: 0;
}

.error-alert {
  background: rgba(244, 63, 94, 0.08);
  border: 1px solid rgba(244, 63, 94, 0.3);
  border-radius: var(--border-radius-md);
  padding: 14px 18px;
  color: #be123c;
  font-size: 0.9rem;
  font-weight: 500;
  margin-top: 12px;
  animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}