/* ==========================================================================
   slash.ecnet.dev - Modern Dev Landing Page Stylesheet
   ========================================================================== */

/* Modern View Transitions */
@media (prefers-reduced-motion: no-preference) {
  @view-transition {
    navigation: auto;
  }
}

:root {
  --bg-primary: #07090e;
  --bg-secondary: #0d111a;
  --bg-tertiary: #131926;
  --bg-card: rgba(19, 25, 38, 0.7);
  --bg-card-hover: rgba(28, 37, 56, 0.85);
  
  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-active: rgba(0, 242, 254, 0.4);
  --border-glow: rgba(79, 172, 254, 0.25);
  
  --text-main: #f0f4fc;
  --text-muted: #8d9bb0;
  --text-dim: #546279;
  
  --color-cyan: #00f2fe;
  --color-blue: #4facfe;
  --color-violet: #8e2de2;
  --color-emerald: #00f5a0;
  --color-amber: #f6d365;
  --color-rose: #ff5858;
  
  --gradient-brand: linear-gradient(135deg, #00f2fe 0%, #4facfe 50%, #8e2de2 100%);
  --gradient-glow: radial-gradient(circle at 50% 30%, rgba(0, 242, 254, 0.15), transparent 70%);
  --gradient-card: linear-gradient(180deg, rgba(255, 255, 255, 0.04) 0%, rgba(255, 255, 255, 0.01) 100%);

  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
  --font-mono: "JetBrains Mono", "Fira Code", ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;

  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-xl: 24px;
  
  --shadow-sm: 0 4px 12px rgba(0, 0, 0, 0.4);
  --shadow-glow: 0 0 25px rgba(0, 242, 254, 0.25);
  --shadow-card: 0 10px 30px -10px rgba(0, 0, 0, 0.5);

  --transition-fast: 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-normal: 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  scroll-behavior: smooth;
  color-scheme: dark;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-primary);
  color: var(--text-main);
  line-height: 1.6;
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Background Canvas & Ambient Grid */
#bg-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
  z-index: 0;
  opacity: 0.8;
}

.ambient-grid {
  position: fixed;
  inset: 0;
  background-size: 40px 40px;
  background-image: 
    linear-gradient(to right, rgba(255, 255, 255, 0.02) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
  mask-image: radial-gradient(ellipse 80% 60% at 50% 20%, #000 60%, transparent 100%);
  -webkit-mask-image: radial-gradient(ellipse 80% 60% at 50% 20%, #000 60%, transparent 100%);
  pointer-events: none;
  z-index: 0;
}

.ambient-glow {
  position: fixed;
  top: -150px;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 500px;
  background: radial-gradient(circle, rgba(0, 242, 254, 0.12) 0%, rgba(142, 45, 226, 0.08) 50%, transparent 70%);
  filter: blur(80px);
  pointer-events: none;
  z-index: 0;
}

/* Layout Wrapper */
.site-wrapper {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Typography Helpers */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  color: #fff;
  letter-spacing: -0.025em;
  line-height: 1.2;
}

.text-gradient {
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
}

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

a:hover {
  color: #fff;
}

/* Header & Navigation */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  background: rgba(7, 9, 14, 0.75);
  border-bottom: 1px solid var(--border-subtle);
  transition: background var(--transition-fast), border-color var(--transition-fast);
}

.navbar .nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  font-weight: 700;
  font-size: 1.15rem;
  color: #fff;
}

.brand-icon {
  width: 34px;
  height: 34px;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, #00f2fe, #8e2de2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-weight: 800;
  font-size: 1.1rem;
  color: #07090e;
  box-shadow: 0 0 15px rgba(0, 242, 254, 0.4);
}

.brand-text .domain-sub {
  color: var(--color-cyan);
}

.brand-text .domain-root {
  color: var(--text-muted);
  font-weight: 400;
}

.env-tag {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  padding: 2px 7px;
  border-radius: 999px;
  background: rgba(0, 242, 254, 0.12);
  color: var(--color-cyan);
  border: 1px solid rgba(0, 242, 254, 0.3);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-left: 6px;
}

.nav-links {
  display: flex;
  align-items: center;
  list-style: none;
  gap: 28px;
}

.nav-links a {
  color: var(--text-muted);
  font-size: 0.92rem;
  font-weight: 500;
  transition: all var(--transition-fast);
  position: relative;
  padding: 6px 0;
}

.nav-links a:hover,
.nav-links a.active {
  color: #fff;
}

.nav-links a.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--gradient-brand);
  border-radius: 2px;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.status-pill {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  font-family: var(--font-mono);
  padding: 6px 12px;
  border-radius: 999px;
  background: rgba(0, 245, 160, 0.08);
  border: 1px solid rgba(0, 245, 160, 0.25);
  color: var(--color-emerald);
}

.status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background-color: var(--color-emerald);
  box-shadow: 0 0 10px var(--color-emerald);
  animation: pulse-dot 2s infinite;
}

@keyframes pulse-dot {
  0% { transform: scale(0.95); opacity: 0.8; }
  50% { transform: scale(1.3); opacity: 1; }
  100% { transform: scale(0.95); opacity: 0.8; }
}

/* Mobile Menu Toggle */
.mobile-toggle {
  display: none;
  background: transparent;
  border: none;
  color: var(--text-main);
  font-size: 1.5rem;
  cursor: pointer;
  padding: 6px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: var(--radius-md);
  font-size: 0.92rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
  border: 1px solid transparent;
  text-decoration: none;
}

.btn-primary {
  background: var(--gradient-brand);
  color: #07090e;
  box-shadow: 0 0 20px rgba(0, 242, 254, 0.3);
}

.btn-primary:hover {
  box-shadow: 0 0 30px rgba(0, 242, 254, 0.5);
  transform: translateY(-1px);
  color: #000;
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.05);
  border-color: var(--border-subtle);
  color: var(--text-main);
  backdrop-filter: blur(8px);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.2);
  color: #fff;
  transform: translateY(-1px);
}

.btn-sm {
  padding: 6px 14px;
  font-size: 0.82rem;
  border-radius: var(--radius-sm);
}

/* Hero Section */
.hero {
  padding: 90px 0 60px;
  text-align: center;
}

.hero-badge-wrap {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  border-radius: 999px;
  background: rgba(0, 242, 254, 0.08);
  border: 1px solid rgba(0, 242, 254, 0.2);
  color: var(--color-cyan);
  font-size: 0.85rem;
  margin-bottom: 24px;
  backdrop-filter: blur(6px);
}

.hero-title {
  font-size: clamp(2.4rem, 5.5vw, 4.2rem);
  line-height: 1.1;
  margin-bottom: 20px;
  letter-spacing: -0.03em;
}

.hero-subtitle {
  font-size: clamp(1.05rem, 2vw, 1.25rem);
  color: var(--text-muted);
  max-width: 680px;
  margin: 0 auto 36px;
  font-weight: 400;
}

.hero-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-bottom: 50px;
  flex-wrap: wrap;
}

/* Quick Stats Bar */
.stats-bar {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  backdrop-filter: blur(12px);
  border-radius: var(--radius-lg);
  padding: 24px;
  margin-bottom: 80px;
  box-shadow: var(--shadow-card);
}

.stat-item {
  text-align: center;
  border-right: 1px solid var(--border-subtle);
  padding: 0 12px;
}

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

.stat-value {
  font-size: 2rem;
  font-weight: 800;
  font-family: var(--font-mono);
  color: #fff;
  margin-bottom: 4px;
}

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

/* Interactive Playground / Console */
.terminal-wrapper {
  max-width: 900px;
  margin: 0 auto 80px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.6), 0 0 20px rgba(0, 242, 254, 0.08);
}

.terminal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 18px;
  background: rgba(255, 255, 255, 0.03);
  border-bottom: 1px solid var(--border-subtle);
}

.terminal-controls {
  display: flex;
  gap: 8px;
}

.terminal-dot {
  width: 11px;
  height: 11px;
  border-radius: 50%;
}

.terminal-dot.red { background: #ff5f56; }
.terminal-dot.yellow { background: #ffbd2e; }
.terminal-dot.green { background: #27c93f; }

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

.terminal-tabs {
  display: flex;
  gap: 4px;
}

.tab-btn {
  background: transparent;
  border: none;
  color: var(--text-dim);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.tab-btn.active, .tab-btn:hover {
  color: var(--color-cyan);
  background: rgba(0, 242, 254, 0.08);
}

.terminal-body {
  padding: 20px 24px;
  background: #0a0d14;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  position: relative;
}

.code-block {
  display: none;
  white-space: pre-wrap;
  word-break: break-all;
  color: #c9d1d9;
  line-height: 1.7;
}

.code-block.active {
  display: block;
}

.code-kw { color: #ff7b72; }
.code-str { color: #a5d6ff; }
.code-fn { color: #d2a8ff; }
.code-cmt { color: #8b949e; font-style: italic; }

.terminal-action-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 18px;
  padding-top: 16px;
  border-top: 1px dashed rgba(255, 255, 255, 0.1);
}

.copy-btn {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-subtle);
  color: var(--text-muted);
  border-radius: var(--radius-sm);
  padding: 6px 12px;
  font-size: 0.78rem;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.copy-btn:hover {
  color: #fff;
  border-color: rgba(255, 255, 255, 0.3);
}

.terminal-output {
  margin-top: 14px;
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  background: rgba(0, 0, 0, 0.4);
  border: 1px solid rgba(0, 242, 254, 0.15);
  font-size: 0.8rem;
  color: var(--color-emerald);
  display: none;
}

.terminal-output.visible {
  display: block;
}

/* Features Grid */
.features-section {
  padding: 60px 0 100px;
}

.section-header {
  text-align: center;
  max-width: 650px;
  margin: 0 auto 50px;
}

.section-tag {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--color-cyan);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 12px;
  display: block;
}

.section-title {
  font-size: clamp(1.8rem, 3.5vw, 2.5rem);
  margin-bottom: 16px;
}

.section-desc {
  color: var(--text-muted);
  font-size: 1.05rem;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--gradient-brand);
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.feature-card:hover {
  transform: translateY(-4px);
  background: var(--bg-card-hover);
  border-color: var(--border-active);
  box-shadow: 0 15px 30px rgba(0, 0, 0, 0.4);
}

.feature-card:hover::before {
  opacity: 1;
}

.feature-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: rgba(0, 242, 254, 0.1);
  color: var(--color-cyan);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  margin-bottom: 20px;
  border: 1px solid rgba(0, 242, 254, 0.2);
}

.feature-title {
  font-size: 1.25rem;
  margin-bottom: 12px;
}

.feature-desc {
  color: var(--text-muted);
  font-size: 0.94rem;
  line-height: 1.6;
}

/* Interactive Edge Node Latency Widget */
.edge-matrix {
  margin: 60px 0 100px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: 40px;
  backdrop-filter: blur(12px);
}

.matrix-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
  flex-wrap: wrap;
  gap: 16px;
}

.nodes-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
}

.node-card {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 16px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: all var(--transition-fast);
}

.node-card:hover {
  border-color: var(--border-active);
  background: rgba(0, 242, 254, 0.04);
}

.node-info {
  display: flex;
  flex-direction: column;
}

.node-name {
  font-weight: 600;
  font-size: 0.95rem;
  color: #fff;
}

.node-region {
  font-size: 0.78rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

.node-latency {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 999px;
  background: rgba(0, 245, 160, 0.1);
  color: var(--color-emerald);
  border: 1px solid rgba(0, 245, 160, 0.25);
}

/* Call to Action Banner */
.cta-banner {
  margin: 40px 0 100px;
  padding: 60px 40px;
  border-radius: var(--radius-xl);
  background: radial-gradient(ellipse at center, rgba(0, 242, 254, 0.12) 0%, rgba(13, 17, 26, 0.9) 70%), var(--bg-secondary);
  border: 1px solid rgba(0, 242, 254, 0.25);
  text-align: center;
  position: relative;
  overflow: hidden;
  box-shadow: 0 0 50px rgba(0, 242, 254, 0.1);
}

.cta-title {
  font-size: clamp(2rem, 3.5vw, 2.8rem);
  margin-bottom: 16px;
}

.cta-desc {
  color: var(--text-muted);
  max-width: 600px;
  margin: 0 auto 32px;
  font-size: 1.05rem;
}

/* Footer */
.site-footer {
  margin-top: auto;
  border-top: 1px solid var(--border-subtle);
  background: #05070a;
  padding: 60px 0 30px;
  color: var(--text-muted);
  font-size: 0.9rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}

.footer-col h4 {
  font-size: 0.95rem;
  color: #fff;
  margin-bottom: 16px;
  letter-spacing: 0.02em;
}

.footer-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-col ul a {
  color: var(--text-muted);
  font-size: 0.88rem;
}

.footer-col ul a:hover {
  color: var(--color-cyan);
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  font-size: 0.82rem;
  color: var(--text-dim);
}

/* About Page Specific Styles */
.about-hero {
  padding: 80px 0 50px;
  text-align: center;
}

.about-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 36px;
  margin-bottom: 40px;
}

.architecture-diagram {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin: 30px 0;
}

.arch-layer {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 18px 24px;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-subtle);
}

.arch-badge {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  background: rgba(0, 242, 254, 0.1);
  color: var(--color-cyan);
  white-space: nowrap;
}

.arch-info h4 {
  font-size: 1.05rem;
  margin-bottom: 4px;
}

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

.specs-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
  margin-top: 24px;
}

.spec-box {
  background: rgba(0, 0, 0, 0.3);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 16px;
}

.spec-key {
  font-size: 0.75rem;
  color: var(--text-dim);
  text-transform: uppercase;
  font-family: var(--font-mono);
  margin-bottom: 4px;
}

.spec-val {
  font-size: 1.1rem;
  font-weight: 700;
  color: #fff;
}

/* Accordion FAQ */
.accordion {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin: 30px 0;
}

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

.accordion-item.active {
  border-color: var(--border-active);
}

.accordion-header {
  padding: 18px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  font-weight: 600;
  user-select: none;
}

.accordion-icon {
  font-size: 1.2rem;
  color: var(--color-cyan);
  transition: transform var(--transition-fast);
}

.accordion-item.active .accordion-icon {
  transform: rotate(45deg);
}

.accordion-content {
  display: none;
  padding: 0 24px 20px;
  color: var(--text-muted);
  font-size: 0.94rem;
  line-height: 1.6;
}

.accordion-item.active .accordion-content {
  display: block;
}

/* Toast Notification */
.toast {
  position: fixed;
  bottom: 30px;
  right: 30px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-active);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.6), 0 0 15px rgba(0, 242, 254, 0.3);
  padding: 12px 20px;
  border-radius: var(--radius-md);
  color: #fff;
  font-size: 0.88rem;
  display: flex;
  align-items: center;
  gap: 10px;
  transform: translateY(100px);
  opacity: 0;
  transition: all var(--transition-normal);
  z-index: 999;
}

.toast.show {
  transform: translateY(0);
  opacity: 1;
}

/* Responsive Breakpoints */
@media (max-width: 900px) {
  .stats-bar {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }
  
  .stat-item:nth-child(2) {
    border-right: none;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 30px;
  }
}

@media (max-width: 768px) {
  .mobile-toggle {
    display: block;
  }

  .nav-links {
    position: fixed;
    top: 72px;
    left: 0;
    width: 100%;
    background: rgba(7, 9, 14, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    flex-direction: column;
    padding: 24px;
    border-bottom: 1px solid var(--border-subtle);
    display: none;
    gap: 18px;
  }

  .nav-links.open {
    display: flex;
  }

  .status-pill {
    display: none;
  }

  .hero-title {
    font-size: 2.2rem;
  }

  .stats-bar {
    grid-template-columns: 1fr;
  }

  .stat-item {
    border-right: none;
    border-bottom: 1px solid var(--border-subtle);
    padding-bottom: 16px;
  }

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

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

  .footer-bottom {
    flex-direction: column;
    gap: 12px;
    text-align: center;
  }
}