/*
 * Zeppelin Marketing Website — Custom Styles
 * Light theme, turbopuffer-inspired aesthetic.
 */

/* ===========================
   1. Custom Properties
   =========================== */
:root {
  --color-bg: #ffffff;
  --color-surface: #f8f8f8;
  --color-accent: #e8590c;
  --color-accent-hover: #d14b00;
  --color-border: rgba(0, 0, 0, 0.12);
  --color-border-hover: rgba(232, 89, 12, 0.4);
  --color-text-primary: #1a1a2e;
  --color-text-secondary: #555555;
  --color-text-muted: #888888;
  --color-nav-bg: #1a1a2e;
  --color-code-bg: #1e1e2e;

  /* Syntax highlighting (inside dark code blocks) */
  --syntax-string: #4ade80;
  --syntax-key: #60a5fa;
  --syntax-number: #fb923c;
  --syntax-comment: #6b7280;
  --syntax-command: #fbbf24;
}

/* ===========================
   2. Base & Smooth Scroll
   =========================== */
html {
  scroll-behavior: smooth;
}

/* ===========================
   3. Selection Color
   =========================== */
::selection {
  background-color: rgba(232, 89, 12, 0.2);
  color: #1a1a2e;
}

::-moz-selection {
  background-color: rgba(232, 89, 12, 0.2);
  color: #1a1a2e;
}

/* ===========================
   4. Scrollbar Styling (WebKit)
   =========================== */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--color-bg);
}

::-webkit-scrollbar-thumb {
  background: #d0d0d0;
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: #b0b0b0;
}

/* Code block scrollbars — thinner, dark theme inside code blocks */
pre::-webkit-scrollbar {
  height: 6px;
}

pre::-webkit-scrollbar-track {
  background: transparent;
}

pre::-webkit-scrollbar-thumb {
  background: #3a3a4a;
  border-radius: 3px;
}

pre::-webkit-scrollbar-thumb:hover {
  background: #555;
}

/* ===========================
   5. Syntax Highlighting Classes
   =========================== */
.syntax-string {
  color: var(--syntax-string);
}

.syntax-key {
  color: var(--syntax-key);
}

.syntax-number {
  color: var(--syntax-number);
}

.syntax-comment {
  color: var(--syntax-comment);
  font-style: italic;
}

.syntax-command {
  color: var(--syntax-command);
}

/* ===========================
   6. Code Tab Active State
   =========================== */
.code-tab {
  border-bottom: 2px solid transparent;
  color: var(--color-text-muted);
  transition: color 0.15s ease, border-color 0.15s ease;
}

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

.code-tab.active {
  color: var(--color-text-primary);
  border-bottom-color: var(--color-accent);
}

/* ===========================
   7. Card Hover Effects
   =========================== */
.feature-card {
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.feature-card:hover {
  border-color: rgba(0, 0, 0, 0.25);
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
}

/* ===========================
   8. Code Block Styling
   =========================== */
pre {
  margin: 0;
  tab-size: 2;
}

pre code {
  display: block;
  white-space: pre;
  word-break: normal;
  overflow-x: auto;
}

/* Dark code block container */
.code-block {
  background-color: var(--color-code-bg);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 8px;
  padding: 1.5rem;
  overflow-x: auto;
}

.code-block pre {
  color: #e0e0e0;
}

/* ===========================
   9. Fieldset-Style Containers
   =========================== */
.fieldset-card {
  border: 1px solid var(--color-border);
  border-radius: 4px;
  padding: 24px;
  position: relative;
}

.fieldset-card .fieldset-legend {
  position: absolute;
  top: -10px;
  left: 16px;
  background: var(--color-bg);
  padding: 0 8px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text-primary);
}

/* ===========================
   11. Performance Bar Charts
   =========================== */
.perf-row {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 14px;
}

.perf-row:last-child {
  margin-bottom: 0;
}

.perf-label {
  flex-shrink: 0;
  width: 90px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 13px;
  color: var(--color-text-secondary);
  text-align: left;
}

.perf-bar-track {
  flex: 1;
  height: 24px;
  background: var(--color-surface);
  border-radius: 2px;
  overflow: hidden;
  position: relative;
}

.perf-bar {
  height: 100%;
  border-radius: 2px;
  width: 0;
  transition: width 1s ease-out;
}

.perf-bar--warm {
  background: var(--color-nav-bg);
}

.perf-bar--cold {
  background: var(--color-accent);
}

.perf-bar--zeppelin {
  background: var(--color-accent);
}

.perf-bar--competitor {
  background: #c0c0c8;
}

.perf-value {
  flex-shrink: 0;
  width: 70px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 13px;
  font-weight: 600;
  color: var(--color-text-primary);
}

/* Perf group spacing for comparison charts */
.perf-group {
  margin-bottom: 14px;
}

.perf-group:last-child {
  margin-bottom: 0;
}

.perf-group-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  font-weight: 500;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 4px;
}

.perf-group .perf-row {
  margin-bottom: 6px;
}

.perf-group .perf-row:last-child {
  margin-bottom: 0;
}

/* ===========================
   12. Button Styles
   =========================== */

/* Orange outlined button (primary CTA) */
.btn-primary {
  display: inline-flex;
  align-items: center;
  padding: 0.625rem 1.5rem;
  font-size: 0.875rem;
  font-weight: 500;
  border: 1.5px solid var(--color-accent);
  color: var(--color-accent);
  border-radius: 6px;
  transition: background-color 0.15s ease, color 0.15s ease, transform 0.15s ease;
}

.btn-primary:hover {
  background-color: var(--color-accent);
  color: #ffffff;
  transform: translateY(-1px);
}

.btn-primary:active {
  transform: translateY(0);
}

/* Dark outlined button (secondary CTA) */
.btn-secondary {
  display: inline-flex;
  align-items: center;
  padding: 0.625rem 1.5rem;
  font-size: 0.875rem;
  font-weight: 500;
  border: 1.5px solid var(--color-border);
  color: var(--color-text-primary);
  border-radius: 6px;
  transition: border-color 0.15s ease, transform 0.15s ease;
}

.btn-secondary:hover {
  border-color: rgba(0, 0, 0, 0.35);
  transform: translateY(-1px);
}

.btn-secondary:active {
  transform: translateY(0);
}

/* Nav CTA buttons (on dark background) */
.btn-nav-primary {
  display: inline-flex;
  align-items: center;
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
  font-weight: 500;
  border: 1.5px solid var(--color-accent);
  color: var(--color-accent);
  border-radius: 6px;
  transition: background-color 0.15s ease, color 0.15s ease;
}

.btn-nav-primary:hover {
  background-color: var(--color-accent);
  color: #ffffff;
}

.btn-nav-ghost {
  display: inline-flex;
  align-items: center;
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.7);
  border: 1.5px solid rgba(255, 255, 255, 0.2);
  border-radius: 6px;
  transition: color 0.15s ease, border-color 0.15s ease;
}

.btn-nav-ghost:hover {
  color: #ffffff;
  border-color: rgba(255, 255, 255, 0.5);
}

/* ===========================
   12b. Hero Install Command Block
   =========================== */
.hero-install-block {
  position: relative;
  background: var(--color-code-bg);
  border-radius: 8px;
  padding: 0.875rem 3rem 0.875rem 1rem;
  overflow-x: auto;
  border: 1px solid rgba(255,255,255,0.08);
}

.hero-install-block pre {
  margin: 0;
  white-space: nowrap;
  color: #e0e0e0;
}

.hero-install-block .copy-btn {
  position: absolute;
  top: 50%;
  right: 0.625rem;
  transform: translateY(-50%);
  background: none;
  border: none;
  color: rgba(255,255,255,0.4);
  cursor: pointer;
  padding: 0.375rem;
  border-radius: 4px;
  transition: color 0.15s ease, background-color 0.15s ease;
}

.hero-install-block .copy-btn:hover {
  color: rgba(255,255,255,0.8);
  background: rgba(255,255,255,0.08);
}

/* ===========================
   13. Nav Styling
   =========================== */
nav.sticky {
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
}

/* ===========================
   14. Stats Bar — Dotted Separator
   =========================== */
.stats-bar {
  border-top: 1px dashed var(--color-border);
  border-bottom: 1px dashed var(--color-border);
}

/* ===========================
   15. Fade-In Animation
   =========================== */
.fade-in {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ===========================
   16. Compact Two-Column Layout
   =========================== */
.compact-col {
  display: flex;
  flex-direction: column;
}

.compact-col .fieldset-card {
  flex: 1;
}

.compact-col .perf-label {
  width: 140px;
}

.compact-col .perf-value {
  width: 90px;
}

/* ===========================
   17. Responsive Adjustments
   =========================== */
@media (max-width: 639px) {
  pre {
    font-size: 0.75rem;
    line-height: 1.5;
  }

  .code-block {
    padding: 1rem;
  }

  /* Perf bar labels shrink on mobile */
  .perf-label {
    width: 120px;
    font-size: 11px;
  }

  .perf-value {
    width: 70px;
    font-size: 11px;
  }
}

/* Tabs: horizontal scroll on small screens */
@media (max-width: 639px) {
  .tab-bar {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
  }

  .tab-bar::-webkit-scrollbar {
    display: none;
  }

  .code-tab {
    white-space: nowrap;
    flex-shrink: 0;
  }
}

/* Quickstart step circles on mobile */
@media (max-width: 639px) {
  #quickstart .flex-shrink-0.w-7 {
    width: 1.5rem;
    height: 1.5rem;
  }
}

/* ===========================
   18. Pricing Calculator
   =========================== */

/* Labels */
.calc-label {
  display: block;
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-muted);
  margin-bottom: 6px;
}

/* Custom select */
.calc-select {
  width: 100%;
  padding: 8px 32px 8px 10px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 13px;
  color: var(--color-text-primary);
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 4px;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23888' d='M3 4.5l3 3 3-3'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 10px center;
  cursor: pointer;
  transition: border-color 0.15s ease;
}

.calc-select:hover {
  border-color: var(--color-border-hover);
}

.calc-select:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 2px rgba(232, 89, 12, 0.12);
}

/* Range slider */
.calc-slider {
  -webkit-appearance: none;
  appearance: none;
  height: 6px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 3px;
  outline: none;
  cursor: pointer;
}

.calc-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--color-accent);
  border: 2px solid var(--color-bg);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
  cursor: pointer;
  transition: transform 0.1s ease;
}

.calc-slider::-webkit-slider-thumb:hover {
  transform: scale(1.15);
}

.calc-slider::-moz-range-thumb {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--color-accent);
  border: 2px solid var(--color-bg);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
  cursor: pointer;
}

/* Provider tabs */
.calc-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.calc-tab {
  padding: 6px 14px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  font-weight: 500;
  color: var(--color-text-secondary);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.15s ease;
}

.calc-tab:hover {
  border-color: var(--color-border-hover);
  color: var(--color-text-primary);
}

.calc-tab.active {
  background: var(--color-accent);
  color: #ffffff;
  border-color: var(--color-accent);
}

/* Node stepper */
.calc-stepper-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 34px;
  font-size: 16px;
  font-weight: 600;
  color: var(--color-text-secondary);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.15s ease;
  user-select: none;
}

.calc-stepper-btn:hover {
  border-color: var(--color-border-hover);
  color: var(--color-accent);
}

.calc-number-input {
  width: 48px;
  height: 34px;
  text-align: center;
  font-family: 'JetBrains Mono', monospace;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text-primary);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 4px;
  -moz-appearance: textfield;
}

.calc-number-input::-webkit-outer-spin-button,
.calc-number-input::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

/* Cost output */
.calc-cost-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.calc-cost-value {
  font-family: 'JetBrains Mono', monospace;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text-primary);
  transition: color 0.3s ease;
}

.calc-cost-value.updated {
  color: var(--color-accent);
}

.calc-cost-total {
  font-family: 'JetBrains Mono', monospace;
  font-size: 22px;
  font-weight: 700;
  color: var(--color-accent);
  transition: color 0.3s ease;
}

/* Chart container */
.calc-chart-wrap {
  position: relative;
  height: 280px;
  padding-top: 8px;
}

/* Responsive calculator */
@media (max-width: 767px) {
  .calc-chart-wrap {
    height: 260px;
  }

  .calc-tab {
    padding: 5px 10px;
    font-size: 11px;
  }
}

/* ===========================
   19. Architecture Section
   =========================== */

.arch-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.arch-list li {
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  color: var(--color-text-secondary);
  padding: 5px 0;
  border-bottom: 1px solid rgba(0, 0, 0, 0.06);
}

.arch-list li:last-child {
  border-bottom: none;
}

.arch-list li strong {
  color: var(--color-text-primary);
}

/* ===========================
   20. About Section
   =========================== */

.about-founder-card {
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 28px 24px;
  background: var(--color-surface);
}

.about-credentials {
  list-style: none;
  padding: 0;
  margin: 0;
}

.about-credentials li {
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  color: var(--color-text-secondary);
  padding: 5px 0;
  border-bottom: 1px solid rgba(0, 0, 0, 0.06);
  white-space: nowrap;
}

.about-credentials li:last-child {
  border-bottom: none;
}