/* ===================================================================
   RESPONSEIQ ROI CALCULATOR - GLASSMORPHIC DESIGN
   =================================================================== */

:root {
  --primary: #00b7ff;
  --primary-glow: rgba(0, 183, 255, 0.4);
  --secondary: #0077cc;
  --success: #22c55e;
  --warning: #f59e0b;

  --glass-bg: rgba(255, 255, 255, 0.03);
  --glass-border: rgba(255, 255, 255, 0.1);
  --glass-hover: rgba(255, 255, 255, 0.08);

  --dark-bg: rgba(0, 0, 0, 0.6);
  --darker-bg: rgba(0, 0, 0, 0.8);

  --text-primary: #e1e5eb;
  --text-secondary: #a0aec0;
  --text-muted: #718096;

  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.3);
  --shadow-glow: 0 0 20px var(--primary-glow);

  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;

  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html, body {
  height: 100%;
  height: 100dvh;
  overflow-x: hidden;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  color: var(--text-primary);
  background: #000;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.background-video {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  height: 100dvh;
  object-fit: cover;
  z-index: -1;
  filter: brightness(8%) blur(2px);
}

/* Header - Same as services page */
.header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--darker-bg);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid var(--glass-border);
  padding: 1rem 2rem;
  padding-top: max(1rem, env(safe-area-inset-top));
  padding-left: max(2rem, env(safe-area-inset-left));
  padding-right: max(2rem, env(safe-area-inset-right));
}

.header-content {
  max-width: 1400px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  display: flex;
  align-items: center;
  text-decoration: none;
  transition: var(--transition);
}

.logo:hover {
  transform: scale(1.05);
  filter: drop-shadow(0 0 16px var(--primary-glow));
}

.logo-img {
  height: 50px;
  width: auto;
  filter: brightness(1.1);
}

.header-nav {
  display: flex;
  gap: 1.5rem;
}

.nav-link {
  color: var(--text-secondary);
  text-decoration: none;
  padding: 0.5rem 1rem;
  border-radius: var(--radius-md);
  transition: var(--transition);
  font-weight: 500;
}

.nav-link:hover {
  color: var(--primary);
  background: var(--glass-bg);
}

.login-link {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: #000;
  font-weight: 600;
}

.login-link:hover {
  box-shadow: var(--shadow-glow);
  transform: translateY(-2px);
}

/* Main Content */
.main-content {
  max-width: 1600px;
  margin: 0 auto;
  padding: 2rem;
  min-height: calc(100vh - 200px);
}

/* Hero Section */
.hero {
  text-align: center;
  padding: 3rem 2rem;
  margin-bottom: 3rem;
}

.page-title {
  font-size: 3.5rem;
  font-weight: 800;
  color: var(--primary);
  margin-bottom: 1rem;
  text-shadow: 0 0 30px var(--primary-glow);
}

.page-subtitle {
  font-size: 1.5rem;
  color: var(--text-secondary);
}

/* Calculator Container */
.calculator-container {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 2rem;
}

/* Calculator Inputs */
.calculator-inputs {
  background: var(--glass-bg);
  backdrop-filter: blur(24px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  padding: 2.5rem;
}

.section-title {
  font-size: 1.75rem;
  color: var(--primary);
  margin-bottom: 2rem;
  font-weight: 700;
}

.input-group {
  margin-bottom: 2rem;
}

.input-group label {
  display: block;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

.input-group input[type="number"] {
  width: 100%;
  background: var(--dark-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  padding: 0.875rem 1rem;
  font-size: 16px; /* Prevents iOS zoom */
  color: var(--text-primary);
  font-family: inherit;
  transition: var(--transition);
  min-height: 48px;
  -webkit-appearance: none;
  appearance: none;
}

.input-group input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(0, 183, 255, 0.1);
}

.input-with-prefix {
  position: relative;
}

.input-with-prefix .prefix {
  position: absolute;
  left: 1rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  font-weight: 600;
}

.input-with-prefix input {
  padding-left: 2.5rem;
}

.input-help {
  display: block;
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 0.25rem;
  font-style: italic;
}

.subsection-title {
  font-size: 1.25rem;
  color: var(--text-primary);
  margin: 2.5rem 0 1.5rem;
  font-weight: 600;
}

.module-checkboxes {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-bottom: 2rem;
}

.checkbox-label {
  background: var(--dark-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  padding: 1rem;
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.checkbox-label:hover {
  border-color: var(--primary);
  background: var(--glass-hover);
}

.checkbox-label input[type="checkbox"] {
  margin-right: 0.75rem;
  width: 24px;
  height: 24px;
  min-width: 24px;
  min-height: 24px;
  cursor: pointer;
  -webkit-appearance: checkbox;
}

.checkbox-text {
  font-weight: 600;
  color: var(--text-primary);
  font-size: 1rem;
}

.checkbox-benefit {
  font-size: 0.85rem;
  color: var(--text-muted);
  padding-left: 2rem;
}

.calculate-btn {
  width: 100%;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: #000;
  border: none;
  padding: 1.25rem;
  border-radius: var(--radius-md);
  font-size: 1.125rem;
  font-weight: 700;
  cursor: pointer;
  transition: var(--transition);
  font-family: inherit;
  box-shadow: var(--shadow-glow);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  min-height: 48px;
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
}

.calculate-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 183, 255, 0.5);
}

/* Calculator Results */
.calculator-results {
  background: var(--glass-bg);
  backdrop-filter: blur(24px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  padding: 2.5rem;
}

.results-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
  margin-bottom: 3rem;
}

.result-card {
  background: var(--dark-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  text-align: center;
  transition: var(--transition);
}

.result-card:hover {
  transform: translateY(-4px);
  border-color: var(--primary);
  box-shadow: 0 4px 16px rgba(0, 183, 255, 0.2);
}

.result-card.highlight {
  background: linear-gradient(135deg, rgba(0, 183, 255, 0.15), rgba(0, 119, 204, 0.15));
  border-color: var(--primary);
  border-width: 2px;
  box-shadow: 0 0 20px rgba(0, 183, 255, 0.3);
}

.result-icon {
  font-size: 2.5rem;
  margin-bottom: 0.5rem;
}

.result-label {
  font-size: 0.9rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 0.5rem;
}

.result-value {
  font-size: 2rem;
  font-weight: 800;
  color: var(--primary);
  margin-bottom: 0.5rem;
  text-shadow: 0 0 16px var(--primary-glow);
}

.result-card.highlight .result-value {
  font-size: 2.5rem;
}

.result-detail {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

/* ROI Breakdown */
.roi-breakdown {
  background: var(--dark-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  margin-bottom: 2rem;
}

.breakdown-title {
  font-size: 1.5rem;
  color: var(--primary);
  margin-bottom: 1.5rem;
  font-weight: 700;
}

.breakdown-content {
  color: var(--text-secondary);
  line-height: 1.8;
}

.placeholder-text {
  text-align: center;
  color: var(--text-muted);
  font-style: italic;
  padding: 2rem;
}

.breakdown-item {
  display: flex;
  justify-content: space-between;
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--glass-border);
}

.breakdown-item:last-child {
  border-bottom: none;
}

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

.breakdown-value {
  color: var(--primary);
  font-weight: 600;
}

/* CTA Section */
.cta-section {
  text-align: center;
  padding: 2rem;
  background: linear-gradient(135deg, rgba(0, 183, 255, 0.1), rgba(0, 119, 204, 0.1));
  border-radius: var(--radius-lg);
  border: 1px solid var(--primary);
}

.cta-text {
  font-size: 1.25rem;
  color: var(--text-primary);
  margin-bottom: 1.5rem;
  font-weight: 600;
}

.cta-button {
  display: inline-block;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: #000;
  padding: 1rem 3rem;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 700;
  font-size: 1.125rem;
  transition: var(--transition);
  box-shadow: var(--shadow-glow);
}

.cta-button:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 183, 255, 0.5);
}

/* Footer */
.footer {
  background: var(--darker-bg);
  border-top: 1px solid var(--glass-border);
  padding: 3rem 2rem;
  text-align: center;
  margin-top: 5rem;
}

.footer-content {
  max-width: 800px;
  margin: 0 auto;
}

.footer-logo {
  margin-bottom: 1.5rem;
}

.footer-logo-img {
  height: 80px;
  width: auto;
  filter: brightness(1.1);
  opacity: 0.9;
}

.footer p {
  color: var(--text-muted);
  margin-bottom: 0.5rem;
}

.footer a {
  color: var(--primary);
  text-decoration: none;
  transition: color 0.2s;
}

.footer a:hover {
  color: #fff;
  text-decoration: underline;
}

/* Responsive Design */
@media (max-width: 1200px) {
  .calculator-container {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .main-content {
    padding: 1rem;
  }

  .page-title {
    font-size: 2.5rem;
  }

  .page-subtitle {
    font-size: 1.125rem;
  }

  .calculator-inputs,
  .calculator-results {
    padding: 1.5rem;
  }

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

  .header-nav {
    display: none;
  }

  .logo-img {
    height: 40px;
  }
}

@media (max-width: 480px) {
  .result-value {
    font-size: 1.5rem;
  }

  .result-card.highlight .result-value {
    font-size: 2rem;
  }

  .footer-logo-img {
    height: 60px;
  }
}

/* ═══════════════════════════════════════════════════════════════════════
   HAMBURGER MENU - Mobile Navigation (Production)
   ═══════════════════════════════════════════════════════════════════════ */

.hamburger-btn {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 48px;
  height: 48px;
  background: rgba(0, 183, 255, 0.1);
  border: 1px solid rgba(0, 183, 255, 0.3);
  border-radius: 10px;
  cursor: pointer;
  padding: 10px;
  z-index: 10001;
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
  transition: all 0.2s ease;
}

.hamburger-btn:active {
  background: rgba(0, 183, 255, 0.25);
  transform: scale(0.95);
}

.hamburger-btn span {
  display: block;
  width: 22px;
  height: 2px;
  background-color: var(--primary);
  border-radius: 2px;
  transition: all 0.3s cubic-bezier(0.68, -0.55, 0.265, 1.55);
  margin: 2.5px 0;
}

.hamburger-btn.active {
  background: rgba(0, 183, 255, 0.2);
}

.hamburger-btn.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.hamburger-btn.active span:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}

.hamburger-btn.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

.mobile-menu-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  height: 100dvh;
  background: rgba(0, 0, 0, 0.85);
  z-index: 9998;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}

.mobile-menu-overlay.active {
  opacity: 1;
  visibility: visible;
}

.mobile-nav-menu {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(180deg, rgba(0, 10, 20, 0.98) 0%, rgba(0, 0, 0, 0.99) 100%);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  z-index: 9999;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 2rem 1.5rem;
  padding-top: max(2rem, env(safe-area-inset-top));
  padding-bottom: max(2rem, env(safe-area-inset-bottom));
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  transform: translateY(-100%);
  opacity: 0;
  transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.3s ease;
}

.mobile-nav-menu.active {
  transform: translateY(0);
  opacity: 1;
}

.mobile-nav-close {
  position: absolute;
  top: max(1rem, env(safe-area-inset-top));
  right: max(1rem, env(safe-area-inset-right));
  width: 48px;
  height: 48px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: var(--text-secondary);
  transition: all 0.2s ease;
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
  z-index: 10000;
}

.mobile-nav-close:active {
  background: rgba(255, 255, 255, 0.15);
  transform: scale(0.9);
}

.mobile-nav-menu .nav-item {
  width: 100%;
  max-width: 280px;
  padding: 1rem 1.5rem;
  margin: 0.4rem 0;
  font-size: 1.15rem;
  font-weight: 500;
  text-align: center;
  border-radius: 14px;
  background: linear-gradient(135deg, rgba(0, 183, 255, 0.08) 0%, rgba(0, 119, 204, 0.05) 100%);
  border: 1px solid rgba(0, 183, 255, 0.2);
  color: var(--text-primary);
  text-decoration: none;
  transition: all 0.2s ease;
  -webkit-tap-highlight-color: transparent;
}

.mobile-nav-menu .nav-item:active {
  background: linear-gradient(135deg, rgba(0, 183, 255, 0.2) 0%, rgba(0, 119, 204, 0.15) 100%);
  border-color: rgba(0, 183, 255, 0.4);
  transform: scale(0.98);
}

.mobile-nav-menu .nav-item.active {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border-color: var(--primary);
  color: #000;
  font-weight: 600;
}

@media (max-width: 768px) {
  .hamburger-btn {
    display: flex;
  }

  .mobile-nav-menu {
    display: flex;
  }

  .mobile-menu-overlay {
    display: block;
  }

  .header-nav {
    display: none;
  }
}

@media only screen and (min-width: 769px) {
  .hamburger-btn,
  .mobile-nav-menu,
  .mobile-menu-overlay {
    display: none !important;
  }
}