/* ============================================
   Three Wise Ants - Terminal Green Screen Theme
   Ultra-modern meets retro CRT aesthetic
   ============================================ */

/* ----- CSS Custom Properties ----- */
:root {
  /* Terminal green palette */
  --color-primary: #0a0a0a;        /* Near-black — deepest background */
  --color-secondary: #00FF41;      /* Phosphor green — primary accent */
  --color-accent: #39FF14;         /* Neon green — highlights, CTAs */
  --color-bg: #0d1117;             /* Dark terminal background */
  --color-bg-alt: #111820;         /* Slightly lighter panel bg */
  --color-text: #b8e6c8;           /* Soft green — body text */
  --color-text-light: #7dcea0;     /* Muted green — secondary text */
  --color-white: #e0ffe0;          /* Green-tinted white — headings */
  --color-card: #0d1117;           /* Card background */
  --color-card-border: #1a3a2a;    /* Dark green border */
  --color-glow: rgba(0, 255, 65, 0.15); /* Green glow */
  --color-glow-strong: rgba(0, 255, 65, 0.3);

  /* Typography */
  --font-body: 'Inter', system-ui, -apple-system, sans-serif;
  --font-heading: 'Inter', system-ui, -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', 'Cascadia Code', monospace;

  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  --spacing-3xl: 4rem;

  /* Layout */
  --container-max: 1200px;
  --border-radius: 4px;

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 200ms ease;
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  min-height: 100vh;
}

/* ----- CRT Scanline Overlay ----- */
body::after {
  content: '';
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 2px,
    rgba(0, 255, 65, 0.015) 2px,
    rgba(0, 255, 65, 0.015) 4px
  );
  pointer-events: none;
  z-index: 9999;
}

/* ----- Base Typography ----- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--color-white);
  line-height: 1.2;
  font-weight: 800;
  letter-spacing: -0.02em;
  text-shadow: 0 0 10px var(--color-glow), 0 0 20px var(--color-glow);
}

h1 { font-size: 2.5rem; margin-bottom: var(--spacing-lg); }
h2 { font-size: 2rem; margin-bottom: var(--spacing-md); }
h3 { font-size: 1.5rem; margin-bottom: var(--spacing-sm); }
h4 { font-size: 1.25rem; margin-bottom: var(--spacing-sm); }

p { margin-bottom: var(--spacing-md); }

a {
  color: var(--color-secondary);
  text-decoration: none;
  transition: color var(--transition-fast), text-shadow var(--transition-fast);
}

a:hover {
  color: var(--color-accent);
  text-shadow: 0 0 8px var(--color-glow-strong);
}

img { max-width: 100%; height: auto; display: block; }
ul, ol { list-style: none; }

button {
  font-family: var(--font-body);
  cursor: pointer;
  border: none;
  background: none;
}

/* ----- Layout Utilities ----- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--spacing-lg);
}

.flex { display: flex; }
.flex-col { display: flex; flex-direction: column; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.flex-between { display: flex; align-items: center; justify-content: space-between; }
.flex-wrap { flex-wrap: wrap; }

.gap-sm { gap: var(--spacing-sm); }
.gap-md { gap: var(--spacing-md); }
.gap-lg { gap: var(--spacing-lg); }
.gap-xl { gap: var(--spacing-xl); }

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

/* ----- Section Spacing ----- */
.section { padding-block: var(--spacing-3xl); }

/* ----- Typewriter Animation ----- */
.typewriter {
  visibility: hidden;
}

.typewriter.typed {
  visibility: visible;
}

.typewriter .char {
  opacity: 0;
  display: inline;
}

.typewriter .char.visible {
  opacity: 1;
}

/* Blinking inline block cursor that follows the typing */
.tw-block-cursor {
  position: absolute;
  color: var(--color-secondary);
  animation: blink-cursor 0.8s step-end infinite;
  font-weight: 400;
  text-shadow: 0 0 8px var(--color-glow-strong);
  pointer-events: none;
  user-select: none;
  line-height: 1;
}

@keyframes blink-cursor {
  0%, 100% { opacity: 1; }
  50% { opacity: 0; }
}

/* Terminal prompt prefix */
.terminal-prompt::before {
  content: '> ';
  color: var(--color-secondary);
  font-family: var(--font-mono);
  font-weight: 700;
  text-shadow: 0 0 6px var(--color-glow);
}

/* ----- Buttons ----- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 2rem;
  font-size: 1rem;
  font-weight: 700;
  font-family: var(--font-mono);
  border-radius: var(--border-radius);
  transition: all var(--transition-base);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  border: 1px solid var(--color-secondary);
  position: relative;
}

.btn:hover { transform: translateY(-2px); }

.btn-primary {
  background: transparent;
  color: var(--color-secondary);
  box-shadow: 0 0 10px var(--color-glow), inset 0 0 10px var(--color-glow);
}

.btn-primary:hover {
  background: rgba(0, 255, 65, 0.1);
  box-shadow: 0 0 20px var(--color-glow-strong), inset 0 0 20px var(--color-glow);
  color: var(--color-accent);
}

.btn-accent {
  background: var(--color-secondary);
  color: var(--color-primary);
  border-color: var(--color-secondary);
  box-shadow: 0 0 15px var(--color-glow), 0 0 30px var(--color-glow);
}

.btn-accent:hover {
  background: var(--color-accent);
  box-shadow: 0 0 25px var(--color-glow-strong), 0 0 50px var(--color-glow);
  color: var(--color-primary);
}

/* ----- Cards ----- */
.card {
  background-color: var(--color-card);
  border: 1px solid var(--color-card-border);
  border-radius: var(--border-radius);
  padding: var(--spacing-xl);
  transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
  position: relative;
}

.card::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 2px;
  background: linear-gradient(90deg, transparent, var(--color-secondary), transparent);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 0 20px var(--color-glow), 0 8px 32px rgba(0, 0, 0, 0.3);
  border-color: var(--color-secondary);
}

.card:hover::before {
  opacity: 1;
}

/* ----- Accessibility: Focus Indicators ----- */
:focus-visible {
  outline: 2px solid var(--color-secondary);
  outline-offset: 2px;
  box-shadow: 0 0 8px var(--color-glow);
}

/* ----- Utility: Screen Reader Only ----- */
.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;
}

/* ----- Navigation Bar ----- */
.navbar {
  position: sticky;
  top: 0;
  width: 100%;
  background-color: rgba(10, 10, 10, 0.95);
  backdrop-filter: blur(12px);
  z-index: 1000;
  padding-block: var(--spacing-sm);
  border-bottom: 1px solid var(--color-card-border);
}

.navbar .container { position: relative; }

.nav-logo { display: flex; align-items: center; flex-shrink: 0; }

/* ----- Logo Banner (above nav) ----- */
.logo-banner {
  text-align: left;
  padding: var(--spacing-xs) var(--spacing-lg);
  background-color: var(--color-primary);
  overflow: hidden;
  border-bottom: 1px solid var(--color-card-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo-img {
  height: 200px;
  width: 719px;
}

.banner-art {
  height: 320px;
  width: auto;
  opacity: 0.7;
  transition: opacity var(--transition-base);
}

.banner-art:hover {
  opacity: 1;
}

/* Menu Items */
.nav-menu {
  align-items: center;
  justify-content: center;
  gap: 0;
  list-style: none;
  margin: 0;
  padding: 0;
  width: 100%;
}

.menu-item { position: relative; }

.menu-item > a {
  display: block;
  color: var(--color-text);
  font-size: 0.875rem;
  font-weight: 600;
  font-family: var(--font-mono);
  padding: var(--spacing-sm) var(--spacing-md);
  white-space: nowrap;
  transition: color var(--transition-fast), text-shadow var(--transition-fast);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.menu-item > a:hover,
.menu-item > a:focus-visible {
  color: var(--color-secondary);
  text-shadow: 0 0 8px var(--color-glow);
}

/* Dropdown Menus */
.dropdown-menu {
  list-style: none; margin: 0;
  padding: var(--spacing-xs) 0;
  border-radius: var(--border-radius);
  opacity: 0; visibility: hidden;
  transition: opacity var(--transition-base), visibility var(--transition-base);
  z-index: 100;
}

.has-dropdown:hover > .dropdown-menu,
.has-dropdown:focus-within > .dropdown-menu,
.has-dropdown .dropdown-menu.show {
  opacity: 1; visibility: visible;
}

.dropdown-menu a {
  display: block;
  padding: var(--spacing-xs) var(--spacing-lg);
  font-size: 0.8125rem;
  font-family: var(--font-mono);
  font-weight: 400;
  white-space: nowrap;
  color: var(--color-text);
  transition: background-color var(--transition-fast), color var(--transition-fast);
}

.dropdown-menu a::before {
  content: '> ';
  color: var(--color-card-border);
  transition: color var(--transition-fast);
}

.dropdown-menu a:hover,
.dropdown-menu a:focus-visible {
  color: var(--color-secondary);
}

.dropdown-menu a:hover::before {
  color: var(--color-secondary);
}

/* Hamburger Button */
.hamburger {
  flex-direction: column; justify-content: center; align-items: center;
  gap: 5px; width: 40px; height: 40px; padding: var(--spacing-xs);
  cursor: pointer; background: none; border: none; z-index: 10;
}

.hamburger-line {
  display: block; width: 24px; height: 2px;
  background-color: var(--color-secondary);
  border-radius: 2px;
  transition: transform var(--transition-base), opacity var(--transition-base);
  box-shadow: 0 0 4px var(--color-glow);
}

.hamburger.active .hamburger-line:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.active .hamburger-line:nth-child(2) { opacity: 0; }
.hamburger.active .hamburger-line:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.navbar.scrolled { box-shadow: 0 4px 24px rgba(0, 0, 0, 0.6); }

/* ----- Hero Section ----- */
.hero {
  background: var(--color-primary);
  color: var(--color-white);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  background:
    radial-gradient(ellipse at 20% 50%, rgba(0, 255, 65, 0.04) 0%, transparent 60%),
    radial-gradient(ellipse at 80% 80%, rgba(57, 255, 20, 0.03) 0%, transparent 50%);
  pointer-events: none;
}

/* Grid lines background effect */
.hero::after {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  background-image:
    linear-gradient(rgba(0, 255, 65, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 255, 65, 0.03) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
}

.hero h1 { color: var(--color-white); position: relative; z-index: 1; }

.hero-tagline {
  font-size: 1.125rem;
  color: var(--color-text);
  max-width: 600px;
  margin-inline: auto;
  margin-bottom: var(--spacing-xl);
  position: relative;
  z-index: 1;
  font-family: var(--font-mono);
}

.hero .btn { position: relative; z-index: 1; }

/* ----- Section Subtitle ----- */
.section-subtitle {
  color: var(--color-text-light);
  font-size: 1.0625rem;
  max-width: 640px;
  margin-inline: auto;
  margin-bottom: var(--spacing-2xl);
}

/* ----- Card Icons ----- */
.card-icon {
  display: block;
  margin-inline: auto;
  margin-bottom: var(--spacing-md);
  filter: drop-shadow(0 0 4px var(--color-glow));
}

/* ----- Solution Cards ----- */
.solution-card {
  cursor: pointer;
  border: 1px solid var(--color-card-border);
  transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
}

.solution-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 0 30px var(--color-glow), 0 12px 40px rgba(0, 0, 0, 0.3);
  border-color: var(--color-secondary);
}

.solution-card[aria-expanded="true"] {
  border-color: var(--color-accent);
  box-shadow: 0 0 20px var(--color-glow-strong);
}

.card-expand-hint {
  display: inline-block;
  margin-top: var(--spacing-sm);
  font-size: 0.75rem;
  color: var(--color-secondary);
  font-weight: 600;
  font-family: var(--font-mono);
  letter-spacing: 0.05em;
}

.card-expand-hint::before {
  content: '[ ';
}
.card-expand-hint::after {
  content: ' ]';
}

/* Solution Detail Panel */
.solution-detail {
  position: relative;
  margin-top: var(--spacing-xl);
  padding: var(--spacing-xl);
  background-color: var(--color-card);
  border-left: 2px solid var(--color-secondary);
  border-radius: var(--border-radius);
  box-shadow: 0 0 15px var(--color-glow), 0 4px 20px rgba(0, 0, 0, 0.3);
}

.solution-detail-close {
  position: absolute; top: var(--spacing-sm); right: var(--spacing-sm);
  font-size: 1.5rem; line-height: 1; color: var(--color-text-light);
  background: none; border: none; cursor: pointer; padding: var(--spacing-xs);
  font-family: var(--font-mono);
}

.solution-detail-close:hover {
  color: var(--color-secondary);
  text-shadow: 0 0 8px var(--color-glow);
}

/* ----- Contact Page ----- */
.contact-layout { align-items: flex-start; }
.contact-form-wrapper { flex: 1.5; }

.contact-form .form-group { margin-bottom: var(--spacing-lg); }

.contact-form label {
  display: block;
  font-weight: 600;
  font-family: var(--font-mono);
  font-size: 0.875rem;
  margin-bottom: var(--spacing-xs);
  color: var(--color-secondary);
  letter-spacing: 0.05em;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: 0.75rem var(--spacing-md);
  font-family: var(--font-mono);
  font-size: 0.9375rem;
  color: var(--color-secondary);
  background-color: var(--color-primary);
  border: 1px solid var(--color-card-border);
  border-radius: var(--border-radius);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  caret-color: transparent;
}

/* Block cursor overlay for terminal feel */
.contact-form .input-cursor-wrap {
  position: relative;
  display: block;
}

.contact-form .block-cursor {
  position: absolute;
  width: 0.6em;
  height: 1.15em;
  background: var(--color-secondary);
  opacity: 0.8;
  pointer-events: none;
  animation: blink-cursor 0.8s step-end infinite;
  display: none;
  z-index: 1;
}

.contact-form input:focus ~ .block-cursor,
.contact-form textarea:focus ~ .block-cursor {
  display: block;
}

.contact-form input::placeholder,
.contact-form textarea::placeholder {
  color: rgba(0, 255, 65, 0.25);
}

.contact-form input:focus,
.contact-form textarea:focus {
  border-color: var(--color-secondary);
  box-shadow: 0 0 10px var(--color-glow), inset 0 0 5px var(--color-glow);
}

.contact-form input:focus:not(:focus-visible),
.contact-form textarea:focus:not(:focus-visible) { outline: none; }

.contact-form input:focus-visible,
.contact-form textarea:focus-visible {
  outline: 2px solid var(--color-secondary);
  outline-offset: 2px;
}

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

.contact-info {
  flex: 1;
  background-color: var(--color-card);
  border: 1px solid var(--color-card-border);
  border-radius: var(--border-radius);
  padding: var(--spacing-xl);
}

.contact-info h2 { margin-bottom: var(--spacing-sm); }
.contact-info > p { color: var(--color-text-light); margin-bottom: var(--spacing-xl); }

.contact-info-item {
  display: flex; align-items: flex-start;
  gap: var(--spacing-md); margin-bottom: var(--spacing-lg);
}

.contact-info-item svg { flex-shrink: 0; margin-top: 2px; }
.contact-info-item h3 { font-size: 1rem; margin-bottom: var(--spacing-xs); }
.contact-info-item p { margin-bottom: 0; }

/* ----- Form Validation States ----- */
.contact-form .input-error {
  border-color: #ff4444;
  box-shadow: 0 0 8px rgba(255, 68, 68, 0.2);
}

.contact-form .input-error:focus {
  border-color: #ff4444;
  box-shadow: 0 0 12px rgba(255, 68, 68, 0.3);
}

.form-error {
  display: block; color: #ff4444;
  font-size: 0.8125rem;
  font-family: var(--font-mono);
  margin-top: var(--spacing-xs);
}

.form-error::before {
  content: '⚠ ';
}

.form-success { text-align: center; padding: var(--spacing-xl); }
.form-success svg { margin-bottom: var(--spacing-md); }
.form-success h3 { color: var(--color-white); margin-bottom: var(--spacing-sm); }
.form-success p { color: var(--color-text-light); }

/* ----- Footer ----- */
.site-footer {
  background-color: var(--color-primary);
  color: var(--color-text-light);
  padding-block: var(--spacing-xl);
  text-align: center;
  font-size: 0.8125rem;
  font-family: var(--font-mono);
  border-top: 1px solid var(--color-card-border);
}

.site-footer a {
  color: var(--color-secondary);
}

.site-footer a:hover {
  color: var(--color-accent);
  text-shadow: 0 0 6px var(--color-glow);
}

/* ----- Sound Toggle Button ----- */
.sound-toggle {
  position: fixed;
  bottom: var(--spacing-lg);
  right: var(--spacing-lg);
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--color-bg-alt);
  border: 1px solid var(--color-card-border);
  color: var(--color-secondary);
  font-size: 1.2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 1001;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.sound-toggle:hover {
  border-color: var(--color-secondary);
  box-shadow: 0 0 10px var(--color-glow);
}