/* ============================================
   BizClaw — Design System & Landing Page Styles
   ============================================ */

/* --- CSS Variables --- */
:root {
  --bg-primary: #0a0a0f;
  --bg-card: #13131a;
  --bg-card-hover: #1a1a24;
  --bg-input: #1a1a24;
  --bg-input-focus: #1e1e2a;
  --border-subtle: #232330;
  --border-focus: #4f7df9;

  --accent: #4f7df9;
  --accent-hover: #6b93ff;
  --accent-glow: rgba(79, 125, 249, 0.15);
  --accent-gradient: linear-gradient(135deg, #4f7df9 0%, #7b5bf5 100%);

  --text-primary: #e8e8ed;
  --text-secondary: #8e8ea0;
  --text-muted: #5a5a6e;
  --text-on-accent: #ffffff;

  --success: #34d399;
  --error: #f87171;
  --warning: #fbbf24;

  --font-stack: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Helvetica Neue', sans-serif;
  --font-mono: 'SF Mono', SFMono-Regular, ui-monospace, Menlo, Consolas, 'Liberation Mono', monospace;

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 40px rgba(79, 125, 249, 0.08);

  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 400ms ease;

  --container-max: 1080px;
  --section-padding: 100px 0;
  --section-padding-mobile: 60px 0;
}

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-stack);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
}

a {
  color: var(--accent);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--accent-hover);
}

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

/* --- Layout --- */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
}

/* --- Typography --- */
h1, h2, h3, h4 {
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--text-primary);
}

h1 {
  font-size: clamp(2.2rem, 5vw, 3.5rem);
}

h2 {
  font-size: clamp(1.6rem, 3.5vw, 2.2rem);
  text-align: center;
  margin-bottom: 56px;
}

h3 {
  font-size: 1.15rem;
}

p {
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ============================================
   Hero Section
   ============================================ */
.hero {
  position: relative;
  padding: 140px 0 120px;
  text-align: center;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -40%;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, rgba(79, 125, 249, 0.08) 0%, transparent 70%);
  pointer-events: none;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-subtle), transparent);
}

.hero h1 {
  margin-bottom: 24px;
  position: relative;
}

.hero-subtitle {
  font-size: clamp(1.05rem, 2vw, 1.25rem);
  max-width: 600px;
  margin: 0 auto 44px;
  color: var(--text-secondary);
}

/* --- Buttons --- */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 32px;
  background: var(--accent-gradient);
  color: var(--text-on-accent);
  font-size: 1rem;
  font-weight: 600;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), opacity var(--transition-fast);
  text-decoration: none;
  line-height: 1.4;
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 20px rgba(79, 125, 249, 0.3);
  color: var(--text-on-accent);
  opacity: 0.92;
}

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

.btn-primary:disabled {
  opacity: 0.4;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

.btn-large {
  padding: 16px 40px;
  font-size: 1.05rem;
  border-radius: var(--radius-md);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 32px;
  background: transparent;
  color: var(--text-secondary);
  font-size: 1rem;
  font-weight: 500;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: border-color var(--transition-fast), color var(--transition-fast), background var(--transition-fast);
  text-decoration: none;
  line-height: 1.4;
}

.btn-secondary:hover {
  border-color: var(--text-muted);
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.03);
}

.btn-secondary:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

/* ============================================
   How It Works
   ============================================ */
.how-it-works {
  padding: var(--section-padding);
  position: relative;
}

.how-it-works::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-subtle), transparent);
}

.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.step-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  text-align: center;
  transition: border-color var(--transition-base), transform var(--transition-base), box-shadow var(--transition-base);
}

.step-card:hover {
  border-color: rgba(79, 125, 249, 0.2);
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow);
}

.step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  background: var(--accent-gradient);
  color: var(--text-on-accent);
  font-size: 1.1rem;
  font-weight: 700;
  border-radius: 50%;
  margin-bottom: 20px;
}

.step-card h3 {
  margin-bottom: 10px;
}

.step-card p {
  font-size: 0.95rem;
}

/* ============================================
   Features
   ============================================ */
.features {
  padding: var(--section-padding);
  position: relative;
}

.features::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-subtle), transparent);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  transition: border-color var(--transition-base), transform var(--transition-base), box-shadow var(--transition-base);
}

.feature-card:hover {
  border-color: rgba(79, 125, 249, 0.2);
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow);
}

.feature-card h3 {
  margin-bottom: 8px;
}

.feature-card p {
  font-size: 0.95rem;
}

/* ============================================
   Wizard Section
   ============================================ */
.wizard-section {
  padding: var(--section-padding);
  position: relative;
}

.wizard-section::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-subtle), transparent);
}

.wizard-container {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: 48px 40px;
  max-width: 640px;
  margin: 0 auto;
  box-shadow: var(--shadow-lg), var(--shadow-glow);
}

/* --- Wizard Progress --- */
.wizard-progress {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-bottom: 40px;
  flex-wrap: wrap;
}

.progress-step {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--text-muted);
  padding: 6px 14px;
  border-radius: 20px;
  background: transparent;
  border: 1px solid transparent;
  transition: color var(--transition-base), background var(--transition-base), border-color var(--transition-base);
  cursor: default;
  white-space: nowrap;
}

.progress-step.active {
  color: var(--accent);
  background: var(--accent-glow);
  border-color: rgba(79, 125, 249, 0.2);
}

.progress-step.completed {
  color: var(--success);
}

.progress-step.completed::before {
  content: '\2713';
  font-size: 0.7rem;
  font-weight: 700;
}

/* --- Wizard Steps --- */
.wizard-step {
  display: none;
  animation: wizardFadeIn var(--transition-slow) ease;
}

.wizard-step.active {
  display: block;
}

@keyframes wizardFadeIn {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.wizard-step h3 {
  font-size: 1.25rem;
  margin-bottom: 6px;
}

.wizard-step > p {
  color: var(--text-muted);
  font-size: 0.92rem;
  margin-bottom: 28px;
}

/* --- Form Groups --- */
.form-group {
  margin-bottom: 22px;
}

.form-group label {
  display: block;
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  background: var(--bg-input);
  color: var(--text-primary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  font-family: var(--font-stack);
  font-size: 0.95rem;
  transition: border-color var(--transition-fast), background var(--transition-fast), box-shadow var(--transition-fast);
  outline: none;
}

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

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--border-focus);
  background: var(--bg-input-focus);
  box-shadow: 0 0 0 3px rgba(79, 125, 249, 0.1);
}

.form-group textarea {
  resize: vertical;
  min-height: 80px;
}

.form-group select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg width='12' height='8' viewBox='0 0 12 8' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1.5L6 6.5L11 1.5' stroke='%238e8ea0' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 40px;
}

.form-hint {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 6px;
}

/* --- Validation --- */
.validation-error {
  font-size: 0.82rem;
  color: var(--error);
  margin-top: 6px;
  display: none;
}

.validation-error.visible {
  display: block;
  animation: wizardFadeIn var(--transition-fast) ease;
}

.form-group.has-error input,
.form-group.has-error select,
.form-group.has-error textarea {
  border-color: var(--error);
}

.form-group.has-error input:focus,
.form-group.has-error select:focus,
.form-group.has-error textarea:focus {
  box-shadow: 0 0 0 3px rgba(248, 113, 113, 0.1);
}

/* --- Channel Options --- */
.channel-options {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-top: 8px;
}

.channel-option {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 20px 12px;
  background: var(--bg-input);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: border-color var(--transition-fast), background var(--transition-fast), transform var(--transition-fast);
  text-align: center;
}

.channel-option:hover {
  border-color: var(--text-muted);
  background: var(--bg-card-hover);
}

.channel-option.selected {
  border-color: var(--accent);
  background: var(--accent-glow);
}

.channel-option .channel-icon {
  font-size: 1.6rem;
  line-height: 1;
}

.channel-option .channel-name {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-secondary);
}

.channel-option.selected .channel-name {
  color: var(--accent);
}

/* --- Wizard Navigation --- */
.wizard-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 36px;
  gap: 12px;
}

.wizard-nav .btn-primary,
.wizard-nav .btn-secondary {
  min-width: 120px;
}

/* --- Install Output --- */
.install-output {
  position: relative;
  background: var(--bg-primary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 20px;
  margin-top: 16px;
  overflow: hidden;
}

.install-output code {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--accent);
  line-height: 1.7;
  word-break: break-all;
  white-space: pre-wrap;
}

.install-output .copy-btn {
  position: absolute;
  top: 10px;
  right: 10px;
  padding: 6px 14px;
  font-size: 0.78rem;
  font-weight: 500;
  font-family: var(--font-stack);
  color: var(--text-secondary);
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: color var(--transition-fast), border-color var(--transition-fast);
}

.install-output .copy-btn:hover {
  color: var(--text-primary);
  border-color: var(--text-muted);
}

.install-output .copy-btn.copied {
  color: var(--success);
  border-color: var(--success);
}

/* --- Status Badge --- */
.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.82rem;
  font-weight: 500;
  padding: 4px 12px;
  border-radius: 20px;
}

.status-badge::before {
  content: '';
  width: 7px;
  height: 7px;
  border-radius: 50%;
  flex-shrink: 0;
}

.status-badge.pending {
  color: var(--warning);
  background: rgba(251, 191, 36, 0.08);
}

.status-badge.pending::before {
  background: var(--warning);
}

.status-badge.success {
  color: var(--success);
  background: rgba(52, 211, 153, 0.08);
}

.status-badge.success::before {
  background: var(--success);
}

.status-badge.error {
  color: var(--error);
  background: rgba(248, 113, 113, 0.08);
}

.status-badge.error::before {
  background: var(--error);
}

/* ============================================
   FAQ
   ============================================ */
.faq {
  padding: var(--section-padding);
  position: relative;
}

.faq::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-subtle), transparent);
}

.faq-list {
  max-width: 640px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color var(--transition-base);
}

.faq-item[open] {
  border-color: rgba(79, 125, 249, 0.15);
}

.faq-item summary {
  padding: 18px 24px;
  font-size: 0.98rem;
  font-weight: 500;
  color: var(--text-primary);
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: color var(--transition-fast);
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary::after {
  content: '+';
  font-size: 1.2rem;
  font-weight: 300;
  color: var(--text-muted);
  transition: transform var(--transition-base), color var(--transition-base);
  flex-shrink: 0;
  margin-left: 16px;
}

.faq-item[open] summary::after {
  transform: rotate(45deg);
  color: var(--accent);
}

.faq-item p {
  padding: 0 24px 18px;
  font-size: 0.92rem;
  line-height: 1.7;
}

/* ============================================
   Footer
   ============================================ */
footer {
  padding: 48px 0;
  text-align: center;
}

footer p {
  font-size: 0.88rem;
  color: var(--text-muted);
}

footer a {
  color: var(--text-secondary);
  font-weight: 500;
}

footer a:hover {
  color: var(--accent);
}

/* ============================================
   Responsive
   ============================================ */
@media (max-width: 768px) {
  .hero {
    padding: 100px 0 80px;
  }

  .how-it-works,
  .features,
  .wizard-section,
  .faq {
    padding: var(--section-padding-mobile);
  }

  h2 {
    margin-bottom: 40px;
  }

  .steps-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .features-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .wizard-container {
    padding: 32px 24px;
    border-radius: var(--radius-lg);
  }

  .wizard-progress {
    gap: 4px;
    margin-bottom: 32px;
  }

  .progress-step {
    font-size: 0.75rem;
    padding: 5px 10px;
  }

  .channel-options {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .channel-option {
    flex-direction: row;
    padding: 14px 16px;
  }

  .wizard-nav {
    margin-top: 28px;
  }

  .wizard-nav .btn-primary,
  .wizard-nav .btn-secondary {
    min-width: 100px;
    padding: 12px 20px;
    font-size: 0.92rem;
  }
}

@media (max-width: 480px) {
  .hero {
    padding: 80px 0 60px;
  }

  .container {
    padding: 0 16px;
  }

  .wizard-container {
    padding: 24px 18px;
  }

  .wizard-progress {
    gap: 2px;
  }

  .progress-step {
    font-size: 0.7rem;
    padding: 4px 8px;
  }
}