/* Agent-2-Agent.com - Premium Dark Voxel Stylesheet */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500&family=Orbitron:wght@400;500;600;700;800;900&family=Exo+2:wght@300;400;500;600;700;800;900&display=swap');

:root {
  --bg-color: #020202;
  --bg-gradient: radial-gradient(circle at 50% 0%, #0c0c0e 0%, #020202 70%);
  --panel-bg: #141416;
  --panel-bg-hover: #1b1b1e;
  --panel-border: #222225;
  --panel-border-hover: #E2A82A;
  
  --text-primary: #E8EAF0;
  --text-secondary: #909090;
  --text-muted: #606060;
  
  --color-primary: #E2A82A; /* Gold Accent */
  --color-primary-hover: #FFC44D;
  --color-success: #10b981;
  --color-warning: #f59e0b;
  
  --primary-gradient: linear-gradient(135deg, #E2A82A 0%, #FFC44D 100%);
  --accent-gradient: linear-gradient(135deg, #161618 0%, #2b2b2e 100%);
  
  --glow-shadow: 0 0 25px rgba(226, 168, 42, 0.15);
  --font-sans: 'Inter', -apple-system, sans-serif;
  --font-heading: 'Orbitron', -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  
  --btn-bg: #161618;
  --btn-border: #2b2b2e;
  --btn-bg-hover: #222225;
}

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

html, body {
  width: 100%;
  min-height: 100%;
  background-color: var(--bg-color);
  background-image: var(--bg-gradient);
  color: var(--text-primary);
  font-family: var(--font-sans);
  line-height: 1.6;
  overflow-x: hidden;
  scroll-behavior: smooth;
}

/* Typography */
h1, h2, h3, h4 {
  font-family: var(--font-heading);
  font-weight: 700;
  letter-spacing: -0.02em;
}

.text-gradient {
  background: var(--primary-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.text-accent-gradient {
  color: var(--color-primary);
}

/* Layout Container */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Header / Navigation */
header {
  border-bottom: 1px solid var(--panel-border);
  backdrop-filter: blur(12px);
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(9, 9, 9, 0.9);
}

.header-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 80px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.logo-image {
  height: 90px; /* Büyütülmüş ve taşan logo */
  width: auto;
  object-fit: contain;
  display: block;
  transform: translateY(8px);
}

.logo span {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1.4rem;
  letter-spacing: 0.02em;
  color: var(--text-primary);
  display: flex;
  align-items: center;
}

.logo-com {
  color: var(--color-primary);
}

nav {
  display: flex;
  gap: 32px;
}

nav a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
  transition: color 0.2s ease;
  display: flex;
  align-items: center;
}

nav a:hover {
  color: var(--color-primary);
}

.btn-header {
  padding: 8px 18px;
  border-radius: 8px;
  border: 1px solid var(--btn-border);
  background: var(--btn-bg);
  color: var(--text-primary);
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  text-decoration: none;
  font-size: 0.9rem;
}

.btn-header:hover {
  background: var(--btn-bg-hover);
  border-color: var(--color-primary);
  box-shadow: 0 0 12px rgba(226, 168, 42, 0.2);
}

/* Hero Section */
.hero {
  padding: 80px 0 60px 0;
  position: relative;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 48px;
  align-items: center;
  margin-bottom: 60px;
  text-align: left;
}

@media (max-width: 900px) {
  .hero-grid {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 32px;
  }
}

.hero-content {
  display: flex;
  flex-direction: column;
}

.hero-tag {
  display: inline-block;
  align-self: flex-start;
  padding: 6px 16px;
  background: rgba(226, 168, 42, 0.1);
  border: 1px solid rgba(226, 168, 42, 0.25);
  border-radius: 99px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 24px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

@media (max-width: 900px) {
  .hero-tag {
    align-self: center;
  }
}

.hero h1 {
  font-size: 3.8rem;
  line-height: 1.1;
  margin-bottom: 24px;
  color: var(--text-primary);
}

@media (max-width: 900px) {
  .hero h1 {
    font-size: 2.8rem;
  }
}

.hero p {
  font-size: 1.125rem;
  color: var(--text-secondary);
  max-width: 680px;
  margin-bottom: 36px;
  line-height: 1.7;
}

@media (max-width: 900px) {
  .hero p {
    margin-left: auto;
    margin-right: auto;
  }
}

.hero-actions {
  display: flex;
  gap: 16px;
  margin-bottom: 20px;
}

@media (max-width: 900px) {
  .hero-actions {
    justify-content: center;
  }
}

@media (max-width: 500px) {
  .hero-actions {
    flex-direction: column;
    width: 100%;
  }
}

.btn-hero {
  height: 56px;
  padding: 0 28px;
  border-radius: 12px;
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
  text-decoration: none;
}

.btn-hero-primary {
  background: var(--color-primary);
  color: #0b0d12;
  border: none;
  box-shadow: 0 4px 20px rgba(226, 168, 42, 0.2);
}

.btn-hero-primary:hover {
  background: var(--color-primary-hover);
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(226, 168, 42, 0.35);
}

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

.btn-hero-secondary:hover {
  background: var(--btn-bg-hover);
  border-color: var(--color-primary);
  transform: translateY(-2px);
  box-shadow: 0 0 15px rgba(226, 168, 42, 0.15);
}

.hero-graphic {
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-robots-img {
  max-width: 100%;
  height: auto;
  object-fit: contain;
  border-radius: 20px;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5), 0 0 30px rgba(226, 168, 42, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.03);
  max-height: 420px;
}

/* Grid layout for CTA/Register Form */
.grid-main {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 40px;
  margin-top: 40px;
  margin-bottom: 80px;
}

@media (max-width: 900px) {
  .grid-main {
    grid-template-columns: 1fr;
  }
}

/* Glassmorphic Panel */
.glass-panel {
  background: var(--panel-bg);
  border: 1px solid var(--panel-border);
  border-radius: 16px;
  padding: 32px;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  transition: border-color 0.3s ease, box-shadow 0.3s ease, transform 0.3s ease;
}

.glass-panel:hover {
  border-color: var(--panel-border-hover);
  transform: translateY(-3px);
  box-shadow: 0 0 25px rgba(226, 168, 42, 0.15);
}

/* Network Stats */
.stats-bar {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-bottom: 60px;
}

@media (max-width: 768px) {
  .stats-bar {
    grid-template-columns: repeat(2, 1fr);
  }
}

.stat-item {
  text-align: center;
  border-right: 1px solid var(--panel-border);
}

.stat-item:last-child {
  border-right: none;
}

@media (max-width: 768px) {
  .stat-item:nth-child(2) {
    border-right: none;
  }
}

.stat-num {
  font-size: 2.25rem;
  font-weight: 700;
  font-family: var(--font-mono);
  color: var(--color-primary);
  margin-bottom: 4px;
}

.stat-num.active-green {
  color: var(--color-success);
}

.stat-label {
  font-size: 0.85rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Interactive Key Generator Form */
.form-title {
  font-size: 1.5rem;
  margin-bottom: 8px;
}

.form-subtitle {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 24px;
}

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

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

.form-input {
  width: 100%;
  padding: 12px 16px;
  background: rgba(6, 7, 11, 0.6);
  border: 1px solid var(--panel-border);
  border-radius: 8px;
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 0.95rem;
  outline: none;
  transition: all 0.3s ease;
}

.form-input:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 10px rgba(226, 168, 42, 0.15);
}

.form-select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%239ca3af'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M19 9l-7 7-7-7'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
  background-size: 16px;
}

.btn-primary {
  width: 100%;
  height: 56px;
  background: var(--btn-bg);
  border: 1px solid var(--btn-border);
  border-radius: 12px;
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  justify-content: center;
}

.btn-primary:hover {
  background: var(--btn-bg-hover);
  border-color: var(--color-primary);
  transform: translateY(-2px);
  box-shadow: 0 0 15px rgba(226, 168, 42, 0.15);
}

/* Console & Response panel */
.console-panel {
  display: flex;
  flex-direction: column;
  height: 100%;
  min-height: 380px;
}

.console-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--panel-border);
  padding-bottom: 12px;
  margin-bottom: 16px;
}

.console-dots {
  display: flex;
  gap: 6px;
}

.console-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.15);
}

.console-dot:nth-child(1) { background: #ff5f56; }
.console-dot:nth-child(2) { background: #ffbd2e; }
.console-dot:nth-child(3) { background: #27c93f; }

.console-title {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.console-body {
  flex-grow: 1;
  background: rgba(6, 7, 11, 0.8);
  border: 1px solid rgba(255, 255, 255, 0.03);
  border-radius: 8px;
  padding: 20px;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--color-primary);
  overflow-y: auto;
  text-align: left;
  white-space: pre-wrap;
  word-break: break-all;
}

/* API Docs Section */
.docs-section {
  padding: 60px 0 100px 0;
  border-top: 1px solid var(--panel-border);
}

.docs-title {
  font-size: 2.25rem;
  text-align: center;
  margin-bottom: 12px;
}

.docs-subtitle {
  color: var(--text-secondary);
  text-align: center;
  max-width: 600px;
  margin: 0 auto 60px auto;
}

.api-endpoint {
  margin-bottom: 48px;
}

.api-method {
  display: inline-block;
  padding: 4px 8px;
  border-radius: 4px;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 0.8rem;
  margin-right: 12px;
}

.api-method.post { background: rgba(16, 185, 129, 0.15); color: var(--color-success); border: 1px solid rgba(16, 185, 129, 0.3); }
.api-method.get { background: rgba(226, 168, 42, 0.15); color: var(--color-primary); border: 1px solid rgba(226, 168, 42, 0.3); }

.api-path {
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 1.1rem;
}

.api-desc {
  margin-top: 12px;
  color: var(--text-secondary);
}

.api-details-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-top: 20px;
}

@media (max-width: 768px) {
  .api-details-grid {
    grid-template-columns: 1fr;
  }
}

.param-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 12px;
  text-align: left;
}

.param-table th {
  padding: 10px;
  border-bottom: 1px solid var(--panel-border);
  color: var(--text-secondary);
  font-size: 0.85rem;
  text-transform: uppercase;
}

.param-table td {
  padding: 12px 10px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.03);
  font-size: 0.9rem;
}

.param-name {
  font-family: var(--font-mono);
  color: var(--color-primary);
  font-weight: 500;
}

.param-type {
  font-family: var(--font-mono);
  color: var(--text-muted);
  font-size: 0.8rem;
}

.param-req {
  color: var(--color-accent);
  font-size: 0.8rem;
  font-weight: 600;
}

.code-container {
  position: relative;
}

.code-header {
  position: absolute;
  top: 8px;
  right: 12px;
  font-size: 0.75rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

pre {
  background: rgba(10, 11, 16, 0.9);
  border: 1px solid var(--panel-border);
  border-radius: 8px;
  padding: 20px;
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: #f3f4f6;
  text-align: left;
}

/* JSON syntax coloring */
.json-key { color: #f43f5e; }
.json-str { color: #34d399; }
.json-num { color: #fb923c; }
.json-bool { color: #a78bfa; }

/* Micro-animations */
@keyframes pulse {
  0% { transform: scale(1); opacity: 0.2; }
  50% { transform: scale(1.05); opacity: 0.4; }
  100% { transform: scale(1); opacity: 0.2; }
}

.glow-ambient {
  position: absolute;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(226, 168, 42, 0.08) 0%, rgba(24, 29, 41, 0.04) 50%, rgba(0,0,0,0) 100%);
  border-radius: 50%;
  pointer-events: none;
  z-index: -1;
}

.glow-1 { top: 10%; left: -10%; animation: pulse 8s infinite ease-in-out; }
.glow-2 { top: 50%; right: -10%; animation: pulse 12s infinite ease-in-out; }

/* Copy Alert toast */
.toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background: var(--panel-bg);
  border: 1px solid var(--color-success);
  padding: 12px 24px;
  border-radius: 8px;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 10px;
  backdrop-filter: blur(16px);
  transform: translateY(150%);
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  z-index: 1000;
}

.toast.show {
  transform: translateY(0);
}

/* Footer */
footer {
  border-top: 1px solid var(--panel-border);
  padding: 40px 0;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.9rem;
}

/* Premium Glassmorphic Google Translate Widget Styling */
#google_translate_element {
  margin-right: 12px;
  display: inline-block;
  vertical-align: middle;
}
/* Style the standard select element */
.goog-te-combo {
  background: var(--panel-bg) !important;
  border: 1px solid var(--panel-border) !important;
  border-radius: 8px !important;
  padding: 6px 12px !important;
  color: var(--text-primary) !important;
  font-family: var(--font-sans) !important;
  font-size: 0.85rem !important;
  cursor: pointer;
  outline: none;
  transition: all 0.3s ease;
  background-image: none !important;
}
.goog-te-combo:hover {
  border-color: var(--panel-border-hover) !important;
  box-shadow: 0 0 10px rgba(226, 168, 42, 0.15);
}
.goog-te-combo option {
  background: #0d0f19 !important; /* Premium dark background for options */
  color: var(--text-primary) !important;
}
/* Hide Google logo/text and attribution */
.goog-te-gadget {
  color: transparent !important;
  font-size: 0 !important;
}
.goog-te-gadget a, 
.goog-te-gadget span, 
.goog-te-gadget img {
  display: none !important;
}
/* Hide translation popups and banner */
body {
  top: 0px !important;
}
.goog-te-banner-frame {
  display: none !important;
}
.goog-tooltip {
  display: none !important;
}
.goog-tooltip:hover {
  display: none !important;
}
.goog-text-highlight {
  background-color: transparent !important;
  box-shadow: none !important;
}

/* A2A Concierge Chat Widget Styles */
.concierge-widget {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 360px;
  height: 480px;
  max-height: 80vh;
  z-index: 1000;
  display: flex;
  flex-direction: column;
  background: rgba(20, 20, 22, 0.95);
  backdrop-filter: blur(16px) saturate(180%);
  -webkit-backdrop-filter: blur(16px) saturate(180%);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 16px;
  box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.5), var(--glow-shadow);
  overflow: hidden;
  transition: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
  transform: translateY(411px);
}

.concierge-widget.open {
  transform: translateY(0);
  width: 380px;
  height: 520px;
  border-color: rgba(226, 168, 42, 0.3);
}

.concierge-header {
  padding: 16px 20px;
  background: linear-gradient(135deg, #1d1d20 0%, #111112 100%);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  display: flex;
  align-items: center;
  gap: 12px;
  cursor: pointer;
  user-select: none;
}

.concierge-avatar {
  width: 36px;
  height: 36px;
  background: #111112;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(255, 255, 255, 0.08);
  overflow: hidden;
  box-shadow: 0 0 8px rgba(226, 168, 42, 0.4);
}
.concierge-avatar-img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.concierge-title {
  flex-grow: 1;
}

.concierge-title h4 {
  margin: 0;
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-primary);
  font-family: var(--font-sans);
}

.status-indicator {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  display: inline-block;
}

.status-indicator.online {
  background: #27c93f;
  box-shadow: 0 0 6px #27c93f;
}

.concierge-toggle-icon {
  font-size: 0.8rem;
  color: var(--text-secondary);
  transition: transform 0.3s ease;
}

.concierge-body {
  flex-grow: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  height: calc(100% - 69px);
}

.concierge-messages {
  flex-grow: 1;
  padding: 16px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
  background: rgba(5, 7, 12, 0.4);
}

/* Custom scrollbar for chat */
.concierge-messages::-webkit-scrollbar {
  width: 6px;
}
.concierge-messages::-webkit-scrollbar-track {
  background: transparent;
}
.concierge-messages::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.08);
  border-radius: 3px;
}
.concierge-messages::-webkit-scrollbar-thumb:hover {
  background: rgba(255, 255, 255, 0.15);
}

.concierge-messages .message {
  max-width: 85%;
  padding: 10px 14px;
  border-radius: 12px;
  font-family: var(--font-sans);
  font-size: 0.88rem;
  line-height: 1.4;
  word-wrap: break-word;
}

.concierge-messages .message.user {
  align-self: flex-end;
  background: var(--primary-gradient);
  color: var(--bg-color);
  font-weight: 500;
  border-bottom-right-radius: 4px;
  box-shadow: 0 2px 8px rgba(226, 168, 42, 0.15);
}

.concierge-messages .message.assistant {
  align-self: flex-start;
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-primary);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-bottom-left-radius: 4px;
}

.concierge-messages .message.system {
  align-self: center;
  background: rgba(239, 68, 68, 0.1);
  color: #f87171;
  border: 1px solid rgba(239, 68, 68, 0.2);
  font-size: 0.8rem;
  text-align: center;
  max-width: 95%;
}

.concierge-messages .message p {
  margin: 0;
}

.concierge-input-area {
  padding: 12px 16px;
  background: rgba(22, 22, 25, 0.6);
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  display: flex;
  gap: 8px;
}

.concierge-input-area input {
  flex-grow: 1;
  background: rgba(5, 7, 12, 0.6);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 8px;
  padding: 10px 12px;
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 0.88rem;
  outline: none;
  transition: all 0.3s ease;
}

.concierge-input-area input:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 8px rgba(226, 168, 42, 0.1);
}

.concierge-input-area button {
  background: var(--primary-gradient);
  border: none;
  border-radius: 8px;
  padding: 0 16px;
  color: var(--bg-color);
  font-family: var(--font-sans);
  font-weight: 700;
  font-size: 0.88rem;
  cursor: pointer;
  transition: all 0.3s ease;
}

.concierge-input-area button:hover {
  filter: brightness(1.1);
}

.concierge-input-area button:disabled, 
.concierge-input-area input:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

@media (max-width: 480px) {
  .concierge-widget {
    bottom: 12px;
    right: 12px;
    width: calc(100% - 24px);
    height: 400px;
  }
  .concierge-widget.open {
    width: calc(100% - 24px);
    height: 480px;
  }
}

/* SDK Section Styles */
.sdk-section {
  padding: 80px 0;
  border-top: 1px solid var(--panel-border);
  background: rgba(8, 11, 19, 0.4);
}

.sdk-downloads {
  display: flex;
  justify-content: center;
  gap: 16px;
  margin-bottom: 40px;
}

.btn-secondary {
  display: inline-block;
  padding: 12px 24px;
  background: var(--btn-bg);
  border: 1px solid var(--btn-border);
  border-radius: 12px;
  color: var(--text-primary);
  text-decoration: none;
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 0.95rem;
  transition: all 0.3s ease;
}

.btn-secondary:hover {
  background: var(--btn-bg-hover);
  border-color: var(--color-primary);
  color: var(--text-primary);
  transform: translateY(-2px);
  box-shadow: 0 0 15px rgba(226, 168, 42, 0.15);
}

.sdk-tabs-container {
  max-width: 800px;
  margin: 0 auto;
}

.sdk-tabs {
  display: flex;
  gap: 8px;
  border-bottom: 1px solid var(--panel-border);
  margin-bottom: 20px;
}

.sdk-tab {
  padding: 10px 20px;
  background: transparent;
  border: none;
  border-bottom: 2px solid transparent;
  color: var(--text-secondary);
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
}

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

.sdk-tab.active {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
}

.sdk-content {
  display: none;
}

.sdk-content.active {
  display: block;
}

/* Responsive Header & Navigation Styles */
@media (max-width: 900px) {
  .header-container {
    flex-direction: column;
    height: auto;
    padding: 16px 24px;
    gap: 16px;
  }
  
  nav {
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: 20px;
    width: 100%;
  }

  #google_translate_element {
    margin-right: 0;
  }
}

@media (max-width: 500px) {
  .logo span {
    font-size: 1.15rem;
  }

  .logo-image {
    height: 48px;
  }

  nav {
    gap: 12px;
  }

  nav a {
    font-size: 0.85rem;
  }

  .btn-header {
    padding: 6px 12px;
    font-size: 0.8rem;
  }
}

/* Agent Playground Styles */
.playground-status-glowing {
  animation: play-heartbeat 1.5s infinite ease-in-out;
}
@keyframes play-heartbeat {
  0% { transform: scale(1); box-shadow: 0 0 4px currentColor; }
  50% { transform: scale(1.25); box-shadow: 0 0 12px currentColor; }
  100% { transform: scale(1); box-shadow: 0 0 4px currentColor; }
}