/* ==========================================================================
   GRIP FORGE — Precision Weapon & Hand Rigging
   Official Product Website — Clean, Minimalist Software Developer Theme
   ========================================================================== */

:root {
  /* Dark Charcoal & Metallic Grey Palette */
  --bg-body: #0c0f14;
  --bg-surface: #131720;
  --bg-surface-alt: #181d28;
  --border-subtle: #202735;
  --border-medium: #2c3647;
  
  /* Restrained Industrial Orange Accent */
  --accent-orange: #f97316;
  --accent-orange-hover: #ea580c;
  --accent-orange-subtle: rgba(249, 115, 22, 0.1);
  
  /* Clean Typography Colors */
  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  
  /* Fonts */
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Inter", "Helvetica Neue", Arial, sans-serif;
  --font-mono: "JetBrains Mono", Consolas, "SF Mono", monospace;
  
  /* Layout Sizing */
  --max-width: 1120px;
  --radius: 6px;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
  background-color: var(--bg-body);
  color: var(--text-primary);
  -webkit-font-smoothing: antialiased;
}

body {
  font-family: var(--font-sans);
  line-height: 1.6;
  background-color: var(--bg-body);
  color: var(--text-primary);
}

a {
  color: inherit;
  text-decoration: none;
}

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

button {
  font-family: inherit;
  cursor: pointer;
}

.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* ==========================================================================
   NAVIGATION
   ========================================================================== */
.site-header {
  position: sticky;
  top: 0;
  width: 100%;
  background: rgba(12, 15, 20, 0.95);
  border-bottom: 1px solid var(--border-subtle);
  backdrop-filter: blur(8px);
  z-index: 100;
}

.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
}

.brand-icon {
  width: 32px;
  height: 32px;
  object-fit: contain;
  display: block;
}

.brand-text {
  font-size: 1.2rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: #ffffff;
}

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

.nav-links {
  display: flex;
  align-items: center;
  gap: 24px;
  list-style: none;
}

.nav-link {
  font-size: 0.9rem;
  color: var(--text-secondary);
  font-weight: 500;
  transition: color 0.15s ease;
}

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

.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 0.88rem;
  font-weight: 600;
  padding: 9px 18px;
  border-radius: var(--radius);
  transition: all 0.15s ease;
  white-space: nowrap;
}

.btn-primary {
  background: var(--accent-orange);
  color: #ffffff;
  border: 1px solid var(--accent-orange-hover);
}

.btn-primary:hover {
  background: var(--accent-orange-hover);
}

.btn-secondary {
  background: var(--bg-surface);
  color: var(--text-primary);
  border: 1px solid var(--border-medium);
}

.btn-secondary:hover {
  background: var(--bg-surface-alt);
  border-color: #3f4e66;
}

.btn-sm {
  padding: 7px 14px;
  font-size: 0.82rem;
}

.btn-lg {
  padding: 12px 24px;
  font-size: 0.95rem;
}

.mobile-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text-primary);
  padding: 6px;
}

.mobile-menu {
  display: none;
  flex-direction: column;
  gap: 12px;
  padding: 16px 24px 20px 24px;
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border-medium);
}

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

/* ==========================================================================
   SECTIONS & TYPOGRAPHY
   ========================================================================== */
.section {
  padding: 80px 0;
}

.section-alt {
  background-color: var(--bg-surface);
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
}

.section-header {
  margin-bottom: 44px;
}

.section-header.center {
  text-align: center;
  max-width: 680px;
  margin-left: auto;
  margin-right: auto;
}

.section-tag {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent-orange);
  margin-bottom: 10px;
  display: inline-block;
}

.section-title {
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: #ffffff;
  margin-bottom: 12px;
}

.section-desc {
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ==========================================================================
   HERO SECTION
   ========================================================================= */
.hero {
  padding: 60px 0 70px 0;
  text-align: center;
}

.hero-content {
  max-width: 820px;
  margin: 0 auto 40px auto;
}

.hero-platform-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-secondary);
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  padding: 4px 12px;
  border-radius: var(--radius);
  margin-bottom: 20px;
}

.hero-platform-tag .tag-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent-orange);
}

.hero-title {
  font-size: 3rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: #ffffff;
  margin-bottom: 10px;
}

.hero-title span {
  color: var(--accent-orange);
}

.hero-tagline {
  font-size: 1.45rem;
  font-weight: 600;
  color: #e2e8f0;
  margin-bottom: 18px;
}

.hero-description {
  font-size: 1.1rem;
  color: var(--text-secondary);
  line-height: 1.65;
  margin-bottom: 28px;
}

.hero-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
}

/* Genuine Screenshot Wrapper */
.hero-screenshot-wrapper {
  max-width: 1080px;
  margin: 0 auto;
  border-radius: 8px;
  background: #090c10;
  border: 1px solid var(--border-medium);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.6);
  overflow: hidden;
}

.screenshot-titlebar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 14px;
  background: #0f141d;
  border-bottom: 1px solid var(--border-subtle);
  font-size: 0.78rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

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

.screenshot-caption {
  padding: 10px 16px;
  font-size: 0.8rem;
  color: var(--text-muted);
  text-align: center;
  border-top: 1px solid var(--border-subtle);
  background: #0c1017;
}

/* ==========================================================================
   FEATURES (5 CONCISE CARDS)
   ========================================================================== */
.features-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(310px, 1fr));
  gap: 20px;
}

.feature-item {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius);
  padding: 24px;
}

.feature-number {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--accent-orange);
  margin-bottom: 12px;
}

.feature-item h3 {
  font-size: 1.15rem;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 10px;
}

.feature-item p {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.55;
}

/* ==========================================================================
   HOW IT WORKS (4 STEPS)
   ========================================================================== */
.workflow-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.workflow-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius);
  padding: 24px;
  display: flex;
  flex-direction: column;
}

.step-badge {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 700;
  color: #ffffff;
  background: #1c2433;
  border: 1px solid var(--border-medium);
  width: 32px;
  height: 32px;
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}

.workflow-card h3 {
  font-size: 1.05rem;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 10px;
}

.workflow-card p {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.55;
}

/* ==========================================================================
   RUNTIME SDK
   ========================================================================== */
.sdk-layout {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 36px;
  align-items: center;
}

.sdk-text h3 {
  font-size: 1.35rem;
  color: #ffffff;
  margin-bottom: 14px;
}

.sdk-text p {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 16px;
}

.sdk-bullets {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-top: 14px;
}

.sdk-bullets li {
  display: flex;
  align-items: center;
  gap: 8px;
}

.sdk-bullets li::before {
  content: "—";
  color: var(--accent-orange);
}

.code-box {
  background: #090c10;
  border: 1px solid var(--border-medium);
  border-radius: var(--radius);
  overflow: hidden;
}

.code-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 14px;
  background: #0f141d;
  border-bottom: 1px solid var(--border-subtle);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-muted);
}

.code-body {
  padding: 18px 16px;
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  line-height: 1.65;
  color: #cbd5e1;
  margin: 0;
}

/* ==========================================================================
   PRICING & LICENSING
   ========================================================================== */
.currency-toggle-wrap {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  margin-top: 24px;
}

.currency-toggle-label {
  font-size: 0.82rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
}

.currency-toggle {
  display: inline-flex;
  background: var(--bg-surface-alt);
  border: 1px solid var(--border-medium);
  border-radius: 20px;
  padding: 3px;
  gap: 2px;
}

.currency-btn {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  font-family: inherit;
  font-size: 0.82rem;
  font-weight: 600;
  padding: 6px 16px;
  border-radius: 16px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.currency-btn:hover:not(.active) {
  color: var(--text-primary);
}

.currency-btn.active {
  background: var(--accent-orange);
  color: #ffffff;
  box-shadow: 0 2px 8px rgba(249, 115, 22, 0.35);
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
  max-width: 960px;
  margin: 0 auto;
}

.pricing-card {
  position: relative;
  background: var(--bg-surface);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius);
  padding: 36px 32px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: border-color 0.2s ease, transform 0.2s ease;
}

.pricing-card:hover {
  border-color: #3f4e66;
  transform: translateY(-2px);
}

.pricing-card-featured {
  border-color: var(--accent-orange);
  background: linear-gradient(180deg, rgba(249, 115, 22, 0.05) 0%, var(--bg-surface) 100%);
  box-shadow: 0 12px 36px rgba(0, 0, 0, 0.4);
}

.pricing-card-featured:hover {
  border-color: var(--accent-orange-hover);
}

.pricing-badge {
  position: absolute;
  top: -12px;
  right: 28px;
  background: var(--accent-orange);
  color: #ffffff;
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 4px 14px;
  border-radius: 12px;
  box-shadow: 0 2px 6px rgba(249, 115, 22, 0.4);
}

.pricing-card-header {
  margin-bottom: 24px;
}

.pricing-tier-tag {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent-orange);
  display: inline-block;
  margin-bottom: 8px;
}

.pricing-card-title {
  font-size: 1.45rem;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 8px;
}

.pricing-card-desc {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.5;
  margin-bottom: 20px;
  min-height: 44px;
}

.pricing-price-wrap {
  display: flex;
  align-items: baseline;
  gap: 3px;
  padding: 16px 0;
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
}

.pricing-currency-symbol {
  font-size: 1.85rem;
  font-weight: 700;
  color: #ffffff;
  line-height: 1;
}

.pricing-amount {
  font-size: 3.2rem;
  font-weight: 800;
  color: #ffffff;
  line-height: 1;
  letter-spacing: -0.02em;
}

.pricing-period {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-left: 8px;
}

.pricing-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin: 24px 0 32px 0;
  flex-grow: 1;
}

.pricing-features li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.pricing-features li strong {
  color: var(--text-primary);
}

.feature-check {
  width: 18px;
  height: 18px;
  color: var(--accent-orange);
  flex-shrink: 0;
  margin-top: 2px;
}

.btn-block {
  width: 100%;
  text-align: center;
  padding: 12px 20px;
  font-size: 0.95rem;
}

.pricing-footer-note {
  text-align: center;
  margin-top: 36px;
  font-size: 0.82rem;
  color: var(--text-muted);
}

/* ==========================================================================
   CHECKOUT MODAL
   ========================================================================== */
.checkout-modal {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.2s ease, visibility 0.2s ease;
}

.checkout-modal.open {
  opacity: 1;
  visibility: visible;
}

.checkout-modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(12, 15, 20, 0.85);
  backdrop-filter: blur(8px);
}

.checkout-modal-card {
  position: relative;
  z-index: 1001;
  width: 100%;
  max-width: 480px;
  background: var(--bg-surface);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius);
  padding: 32px;
  box-shadow: 0 20px 48px rgba(0, 0, 0, 0.6);
  transform: translateY(12px) scale(0.98);
  transition: transform 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

.checkout-modal.open .checkout-modal-card {
  transform: translateY(0) scale(1);
}

.checkout-modal-close {
  position: absolute;
  top: 18px;
  right: 18px;
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: 1.6rem;
  line-height: 1;
  cursor: pointer;
  padding: 4px 8px;
  transition: color 0.15s ease;
}

.checkout-modal-close:hover {
  color: var(--text-primary);
}

.checkout-modal-header {
  margin-bottom: 24px;
}

.checkout-modal-header h3 {
  font-size: 1.4rem;
  color: #ffffff;
  margin: 6px 0 4px 0;
}

.checkout-modal-subtitle {
  font-size: 0.95rem;
  color: var(--accent-orange);
  font-weight: 600;
}

.form-group {
  margin-bottom: 20px;
}

.form-label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.form-input {
  width: 100%;
  background: var(--bg-surface-alt);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius);
  padding: 12px 14px;
  font-family: inherit;
  font-size: 0.92rem;
  color: var(--text-primary);
  outline: none;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.form-input:focus {
  border-color: var(--accent-orange);
  box-shadow: 0 0 0 2px var(--accent-orange-subtle);
}

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

.form-hint {
  display: block;
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-top: 6px;
  line-height: 1.45;
}

.checkout-error {
  background: rgba(239, 68, 68, 0.12);
  border: 1px solid rgba(239, 68, 68, 0.4);
  color: #fca5a5;
  padding: 10px 14px;
  border-radius: var(--radius);
  font-size: 0.84rem;
  margin-bottom: 18px;
  line-height: 1.45;
}

.checkout-security-note {
  text-align: center;
  margin-top: 14px;
  font-size: 0.76rem;
  color: var(--text-muted);
}

.spinner-svg {
  width: 16px;
  height: 16px;
  animation: spin 0.8s linear infinite;
  display: inline-block;
  vertical-align: middle;
}

.btn-spinner {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  justify-content: center;
}

@keyframes spin {
  100% {
    transform: rotate(360deg);
  }
}

/* ==========================================================================
   DOWNLOAD & 14-DAY EVALUATION
   ========================================================================== */
.download-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius);
  padding: 36px 32px;
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 36px;
  align-items: center;
}

.download-text h3 {
  font-size: 1.45rem;
  color: #ffffff;
  margin-bottom: 12px;
}

.download-text p {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 16px;
}

.eval-box {
  background: var(--bg-body);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius);
  padding: 16px;
  margin-top: 18px;
}

.eval-box h4 {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--accent-orange);
  margin-bottom: 6px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.eval-box p {
  font-size: 0.86rem;
  color: var(--text-secondary);
  margin-bottom: 0;
  line-height: 1.5;
}

.eval-box a {
  color: var(--accent-orange);
  text-decoration: underline;
}

.activation-preview-wrap {
  text-align: center;
}

.activation-preview-img {
  max-width: 100%;
  height: auto;
  border-radius: 4px;
  border: 1px solid var(--border-subtle);
  margin: 0 auto;
}

.activation-preview-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 8px;
  font-family: var(--font-mono);
}

/* ==========================================================================
   FOOTER
   ========================================================================== */
.site-footer {
  background: #090c10;
  border-top: 1px solid var(--border-subtle);
  padding: 48px 0 32px 0;
}

.footer-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 32px;
  margin-bottom: 36px;
  flex-wrap: wrap;
}

.footer-brand-title {
  display: flex;
  align-items: center;
  gap: 10px;
}

.footer-brand-icon {
  width: 28px;
  height: 28px;
  object-fit: contain;
  display: block;
}

.footer-brand p {
  font-size: 0.85rem;
  color: var(--text-muted);
  max-width: 380px;
  margin-top: 10px;
  line-height: 1.55;
}

.footer-links-wrap {
  display: flex;
  gap: 36px;
  flex-wrap: wrap;
}

.footer-col h5 {
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #ffffff;
  margin-bottom: 12px;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.footer-link {
  font-size: 0.85rem;
  color: var(--text-secondary);
  transition: color 0.15s ease;
}

.footer-link:hover {
  color: var(--accent-orange);
}

.footer-bottom {
  padding-top: 24px;
  border-top: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.8rem;
  color: var(--text-muted);
  flex-wrap: wrap;
  gap: 12px;
}

/* ==========================================================================
   RESPONSIVE DESIGN
   ========================================================================== */
@media (max-width: 900px) {
  .pricing-grid {
    grid-template-columns: 1fr;
    max-width: 520px;
  }

  .workflow-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .sdk-layout {
    grid-template-columns: 1fr;
  }
  
  .download-card {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .nav-links, .nav-actions .btn-secondary {
    display: none;
  }
  
  .mobile-toggle {
    display: block;
  }
  
  .hero-title {
    font-size: 2.2rem;
  }
  
  .hero-tagline {
    font-size: 1.2rem;
  }
  
  .workflow-grid {
    grid-template-columns: 1fr;
  }
  
  .features-list {
    grid-template-columns: 1fr;
  }
}