/* ==========================================================================
   Design Tokens & Modern CSS Reset for You Think & We Create
   Foundation: Ink-black base, warm white typography, electric cobalt accent
   ========================================================================== */

:root {
  --color-bg: #08080a;
  --color-bg-secondary: #0d0e12;
  --color-surface: #12131a;
  --color-surface-hover: #181924;
  --color-border: #1a1b24;
  --color-border-subtle: #242633;
  --color-border-focus: #3b82f6;

  --color-text-main: #f5f5f0;
  --color-text-secondary: #9da3af;
  --color-text-muted: #6b7280;
  
  --color-accent: #3b82f6;
  --color-accent-hover: #2563eb;
  --color-accent-light: #60a5fa;
  --color-accent-subtle: rgba(59, 130, 246, 0.12);
  --color-accent-glow: rgba(59, 130, 246, 0.25);

  --color-success: #10b981;
  --color-success-bg: rgba(16, 185, 129, 0.1);
  --color-error: #ef4444;
  --color-error-bg: rgba(239, 68, 68, 0.1);
  --color-info: #3b82f6;
  --color-info-bg: rgba(59, 130, 246, 0.1);

  --font-display: 'Syne', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-body: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-full: 9999px;

  --transition-fast: 150ms cubic-bezier(0.16, 1, 0.3, 1);
  --transition-base: 250ms cubic-bezier(0.16, 1, 0.3, 1);
  --transition-smooth: 500ms cubic-bezier(0.16, 1, 0.3, 1);

  --max-width: 1200px;
}

/* Box sizing rules */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  background-color: var(--color-bg);
  color: var(--color-text-main);
  font-family: var(--font-body);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

body {
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
  line-height: 1.6;
}

/* Screen reader only utility */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Accessible focus outlines */
:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
}

/* Base link */
a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-fast);
}

/* Ambient Canvas Background Container */
.canvas-container {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
}

#thoughtCanvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: auto; /* Allow cursor interaction */
  touch-action: none;
}

/* Static fallback graphic when canvas or animation is disabled */
.canvas-static-fallback {
  display: none;
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle at 65% 30%, rgba(59, 130, 246, 0.12) 0%, transparent 60%),
              radial-gradient(circle at 20% 70%, rgba(37, 99, 235, 0.08) 0%, transparent 50%),
              radial-gradient(circle at 50% 50%, #08080a 0%, #050507 100%);
  pointer-events: none;
}

/* Interactive helper badge */
.canvas-hint {
  position: absolute;
  bottom: 2rem;
  right: 2rem;
  z-index: 10;
  font-size: 0.75rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  background: rgba(18, 19, 26, 0.6);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  padding: 0.4rem 0.8rem;
  border-radius: var(--radius-full);
  border: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  pointer-events: none;
  opacity: 0.7;
  transition: opacity var(--transition-base);
}

.canvas-hint-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--color-accent);
  box-shadow: 0 0 8px var(--color-accent);
  animation: pulse-beacon 2s infinite ease-in-out;
}

/* Page Wrapper */
.site-wrapper {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

@media (min-width: 768px) {
  .site-wrapper {
    padding: 0 3rem;
  }
}

@media (min-width: 1200px) {
  .site-wrapper {
    padding: 0 4rem;
  }
}

/* --------------------------------------------------------------------------
   Header / Navigation
   -------------------------------------------------------------------------- */
.site-header {
  height: 5.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.header-brand {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  cursor: pointer;
}

.header-brand:hover .brand-mark {
  transform: scale(1.04);
}

.brand-mark {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform var(--transition-base);
}

.brand-name {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--color-text-main);
  text-transform: uppercase;
}

.brand-name span {
  color: var(--color-accent);
}

.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 0.85rem;
  border-radius: var(--radius-full);
  background: rgba(18, 19, 26, 0.7);
  border: 1px solid var(--color-border);
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  color: var(--color-text-secondary);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--color-accent);
  box-shadow: 0 0 8px var(--color-accent);
  animation: pulse-beacon 2s infinite cubic-bezier(0.4, 0, 0.6, 1);
}

@keyframes pulse-beacon {
  0%, 100% {
    opacity: 1;
    transform: scale(1);
  }
  50% {
    opacity: 0.4;
    transform: scale(0.85);
  }
}

/* --------------------------------------------------------------------------
   Hero Section
   -------------------------------------------------------------------------- */
.hero-section {
  padding-top: 4rem;
  padding-bottom: 5rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

@media (min-width: 768px) {
  .hero-section {
    padding-top: 6.5rem;
    padding-bottom: 7rem;
    max-width: 900px;
  }
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 1.5rem;
}

.hero-tag::before {
  content: "";
  display: inline-block;
  width: 8px;
  height: 8px;
  background-color: var(--color-accent);
  border-radius: 2px;
}

.hero-title {
  font-family: var(--font-display);
  font-size: 2.75rem;
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -0.035em;
  color: var(--color-text-main);
  margin-bottom: 1.5rem;
}

@media (min-width: 640px) {
  .hero-title {
    font-size: 3.75rem;
  }
}

@media (min-width: 1024px) {
  .hero-title {
    font-size: 5rem;
  }
}

.hero-title .highlight {
  color: var(--color-text-main);
  position: relative;
  display: inline-block;
}

.hero-title .highlight::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0.08em;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--color-accent), transparent);
  border-radius: 2px;
  opacity: 0.8;
}

.hero-description {
  font-size: 1.125rem;
  line-height: 1.6;
  color: var(--color-text-secondary);
  margin-bottom: 2.5rem;
  max-width: 680px;
  font-weight: 400;
}

@media (min-width: 768px) {
  .hero-description {
    font-size: 1.25rem;
  }
}

/* --------------------------------------------------------------------------
   Early Access Form
   -------------------------------------------------------------------------- */
.signup-card {
  width: 100%;
  max-width: 580px;
}

.signup-form {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

@media (min-width: 640px) {
  .signup-form {
    flex-direction: row;
    align-items: stretch;
    background: rgba(18, 19, 26, 0.75);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 0.35rem;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    transition: border-color var(--transition-base), box-shadow var(--transition-base);
  }

  .signup-form:focus-within {
    border-color: var(--color-border-focus);
    box-shadow: 0 0 0 1px var(--color-accent), 0 10px 30px rgba(0, 0, 0, 0.5);
  }
}

.form-input-wrapper {
  position: relative;
  flex: 1;
  display: flex;
  align-items: center;
}

.form-input {
  width: 100%;
  background: rgba(18, 19, 26, 0.75);
  border: 1px solid var(--color-border);
  color: var(--color-text-main);
  font-family: var(--font-body);
  font-size: 0.95rem;
  padding: 0.9rem 1.1rem;
  border-radius: var(--radius-md);
  outline: none;
  transition: border-color var(--transition-fast), background-color var(--transition-fast);
}

@media (min-width: 640px) {
  .form-input {
    background: transparent;
    border: none;
    border-radius: 0;
    padding: 0.75rem 1rem;
  }
}

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

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

.form-submit-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  background-color: var(--color-accent);
  color: #ffffff;
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  padding: 0.9rem 1.6rem;
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  white-space: nowrap;
  transition: all var(--transition-base);
  box-shadow: 0 4px 14px rgba(37, 99, 235, 0.35);
  position: relative;
  overflow: hidden;
}

.form-submit-btn:hover:not(:disabled) {
  background-color: var(--color-accent-hover);
  box-shadow: 0 6px 20px rgba(37, 99, 235, 0.5);
  transform: translateY(-1px);
}

.form-submit-btn:active:not(:disabled) {
  transform: translateY(1px);
  box-shadow: 0 2px 10px rgba(37, 99, 235, 0.4);
}

.form-submit-btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

/* Spinner inside button */
.btn-spinner {
  width: 16px;
  height: 16px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  border-top-color: #ffffff;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* Privacy & Feedback */
.form-footer {
  margin-top: 0.75rem;
  font-size: 0.8rem;
  color: var(--color-text-muted);
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.feedback-container {
  margin-top: 0.75rem;
  min-height: 1.5rem;
}

.feedback-message {
  padding: 0.75rem 1rem;
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  line-height: 1.5;
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
  animation: slide-in 0.25s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

@keyframes slide-in {
  from {
    opacity: 0;
    transform: translateY(-6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.feedback-message.success {
  background: var(--color-success-bg);
  border: 1px solid rgba(16, 185, 129, 0.3);
  color: #34d399;
}

.feedback-message.duplicate {
  background: var(--color-info-bg);
  border: 1px solid rgba(59, 130, 246, 0.3);
  color: #60a5fa;
}

.feedback-message.error {
  background: var(--color-error-bg);
  border: 1px solid rgba(239, 68, 68, 0.3);
  color: #f87171;
}

/* --------------------------------------------------------------------------
   Services Section (3 Pillars)
   -------------------------------------------------------------------------- */
.services-section {
  padding-top: 3rem;
  padding-bottom: 5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.services-header {
  margin-bottom: 3rem;
}

.services-eyebrow {
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: 0.5rem;
}

.services-title {
  font-family: var(--font-display);
  font-size: 1.75rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--color-text-main);
}

@media (min-width: 768px) {
  .services-title {
    font-size: 2.25rem;
  }
}

.services-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

@media (min-width: 768px) {
  .services-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 1.75rem;
  }
}

.service-card {
  position: relative;
  background: rgba(18, 19, 26, 0.4);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2.25rem 1.75rem;
  display: flex;
  flex-direction: column;
  transition: all var(--transition-base);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.service-card:hover {
  background: rgba(24, 25, 36, 0.6);
  border-color: rgba(59, 130, 246, 0.35);
  transform: translateY(-3px);
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.35), 0 0 1px rgba(59, 130, 246, 0.2);
}

.service-card-num {
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--color-accent);
  letter-spacing: 0.05em;
  margin-bottom: 1.25rem;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.service-card-num::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--color-border);
}

.service-card-title {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--color-text-main);
  margin-bottom: 0.4rem;
}

.service-card-sub {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--color-accent-light);
  margin-bottom: 1rem;
}

.service-card-desc {
  font-size: 0.925rem;
  line-height: 1.6;
  color: var(--color-text-secondary);
}

/* --------------------------------------------------------------------------
   Minimal Footer
   -------------------------------------------------------------------------- */
.site-footer {
  margin-top: auto;
  padding: 2.5rem 0;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

@media (min-width: 640px) {
  .site-footer {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
  }
}

.footer-copy {
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

.footer-meta {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

.footer-meta a:hover {
  color: var(--color-text-main);
}

/* --------------------------------------------------------------------------
   Accessibility: Prefers-Reduced-Motion Media Query
   -------------------------------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }

  #thoughtCanvas {
    display: none !important;
  }

  .canvas-static-fallback {
    display: block !important;
  }

  .status-dot, .canvas-hint-dot {
    animation: none !important;
  }

  .service-card:hover {
    transform: none !important;
  }
  
  .form-submit-btn:hover {
    transform: none !important;
  }
}