@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

:root {
  /* Brand Colors */
  --bg-primary: #FFFFFF; /* 70% White */
  --brand-blue: #1800AD; /* 25% Deep Electric Blue */
  --brand-red: #FE0000;  /* 5% Radiant Red */
  
  /* Text & Surface */
  --text-main: #0a0a0f;
  --text-muted: #6b7280;
  --surface: #f9fafb;
  --surface-hover: #f3f4f6;
  --border: #e5e7eb;

  /* 8-point grid variables */
  --sp-1: 8px;
  --sp-2: 16px;
  --sp-3: 24px;
  --sp-4: 32px;
  --sp-5: 40px;
  --sp-6: 48px;
  --sp-8: 64px;
  --sp-10: 80px;
  --sp-12: 96px;
  --sp-16: 128px;

  /* Transitions */
  --transition-fast: 0.15s ease-in-out;
  --transition-normal: 0.3s ease-in-out;
  --transition-slow: 0.5s ease-in-out;
}

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

body {
  font-family: 'Inter', sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-main);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

ul {
  list-style: none;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--text-main);
}

h1 { font-size: clamp(2.5rem, 5vw, 4.5rem); margin-bottom: var(--sp-3); }
h2 { font-size: clamp(2rem, 4vw, 3rem); margin-bottom: var(--sp-3); }
h3 { font-size: clamp(1.5rem, 3vw, 2rem); margin-bottom: var(--sp-2); }
p { font-size: 1.125rem; color: var(--text-muted); margin-bottom: var(--sp-3); max-width: 600px; }

/* Layout */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--sp-3);
}

.section {
  padding: var(--sp-12) 0;
}

/* Header / Nav */
.header {
  position: fixed;
  top: 0;
  width: 100%;
  padding: var(--sp-2) 0;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(12px);
  z-index: 100;
  border-bottom: 1px solid rgba(0,0,0,0.05);
}

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

.logo {
  font-weight: 800;
  font-size: 1.5rem;
  display: flex;
  align-items: center;
  gap: var(--sp-1);
}

.logo span {
  color: var(--brand-blue);
}

.nav-links {
  display: none;
  gap: var(--sp-4);
  font-weight: 500;
}

@media (min-width: 768px) {
  .nav-links { display: flex; }
}

.nav-links a:hover {
  color: var(--brand-blue);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--sp-2) var(--sp-4);
  font-weight: 600;
  font-size: 1rem;
  border-radius: 4px; /* Minimal geometry */
  cursor: pointer;
  transition: all var(--transition-normal);
  border: none;
  gap: var(--sp-1);
}

.btn-primary {
  background-color: var(--brand-blue);
  color: var(--bg-primary);
}

.btn-primary:hover {
  background-color: #0c006b;
  transform: translateY(-2px);
  box-shadow: 0 8px 16px rgba(24, 0, 173, 0.15);
}

/* Radiant Red ONLY for the main CTA in hero */
.btn-accent {
  background-color: var(--brand-red);
  color: var(--bg-primary);
}

.btn-accent:hover {
  background-color: #cc0000;
  transform: translateY(-2px);
  box-shadow: 0 8px 16px rgba(254, 0, 0, 0.2);
}

.btn-secondary {
  background-color: transparent;
  color: var(--text-main);
  border: 1px solid var(--border);
}

.btn-secondary:hover {
  background-color: var(--surface-hover);
  border-color: var(--text-muted);
}

/* Hero Section */
.hero {
  padding-top: calc(var(--sp-16) + var(--sp-8));
  padding-bottom: var(--sp-16);
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.hero p {
  margin: 0 auto var(--sp-4) auto;
  font-size: 1.25rem;
}

.hero-actions {
  display: flex;
  gap: var(--sp-2);
  flex-wrap: wrap;
  justify-content: center;
}

/* Value Proposition */
.value-prop {
  background-color: var(--surface);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.grid-3 {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--sp-4);
}

@media (min-width: 768px) {
  .grid-3 { grid-template-columns: repeat(3, 1fr); }
}

.feature-card {
  padding: var(--sp-4);
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: 8px;
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 24px rgba(0,0,0,0.05);
}

.feature-icon {
  width: 48px;
  height: 48px;
  background: rgba(24, 0, 173, 0.05);
  color: var(--brand-blue);
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  font-size: 24px;
  margin-bottom: var(--sp-3);
}

/* Packages Section */
.packages {
  text-align: center;
}

.packages-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--sp-4);
  margin-top: var(--sp-6);
}

@media (min-width: 768px) {
  .packages-grid { grid-template-columns: repeat(3, 1fr); }
}

.package-card {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: var(--sp-5);
  text-align: left;
  display: flex;
  flex-direction: column;
  background: var(--bg-primary);
  transition: all var(--transition-normal);
}

.package-card:hover {
  border-color: var(--brand-blue);
  box-shadow: 0 16px 32px rgba(24, 0, 173, 0.08);
}

.package-card.elite {
  border-color: var(--brand-blue);
  box-shadow: 0 8px 24px rgba(24, 0, 173, 0.05);
  position: relative;
}

.package-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--brand-blue);
  color: var(--bg-primary);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 100px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.package-price {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--text-main);
  margin-bottom: var(--sp-3);
  display: flex;
  align-items:baseline;
}

.package-price span {
  font-size: 1rem;
  color: var(--text-muted);
  font-weight: 500;
  margin-left: 4px;
}

.package-features {
  margin-top: var(--sp-4);
  margin-bottom: var(--sp-5);
  flex-grow: 1;
}

.package-features li {
  display: flex;
  align-items: center;
  gap: var(--sp-1);
  margin-bottom: var(--sp-2);
  color: var(--text-main);
}

.package-features i {
  color: var(--brand-blue);
  font-size: 1.2rem;
}

/* Tech Stack */
.tech-stack {
  background-color: var(--brand-blue);
  color: var(--bg-primary);
  text-align: center;
}

.tech-stack h2, .tech-stack p, .tech-stack h3 {
  color: var(--bg-primary);
}

.tech-stack p {
  color: rgba(255,255,255,0.8);
  margin: 0 auto var(--sp-6) auto;
}

.tech-grid {
  display: flex;
  justify-content: center;
  gap: var(--sp-6);
  flex-wrap: wrap;
}

.tech-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--sp-2);
  opacity: 0.9;
  transition: opacity var(--transition-fast);
}

.tech-item:hover {
  opacity: 1;
}

.tech-item i {
  font-size: 3rem;
}

/* Footer */
.footer {
  padding: var(--sp-6) 0;
  border-top: 1px solid var(--border);
  text-align: center;
}

.footer a {
  font-weight: 600;
  color: var(--brand-blue);
  font-size: 1.25rem;
}

/* Command Palette / App Interface */
.fab {
  position: fixed;
  bottom: var(--sp-4);
  right: var(--sp-4);
  width: 56px;
  height: 56px;
  border-radius: 28px;
  background: var(--bg-primary);
  color: var(--brand-blue);
  box-shadow: 0 4px 12px rgba(0,0,0,0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  cursor: pointer;
  z-index: 90;
  border: 1px solid var(--border);
  transition: all var(--transition-normal);
}

.fab:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.15);
  border-color: var(--brand-blue);
}

/* Command Palette Overlay */
.cmd-palette-overlay {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(10, 10, 15, 0.6);
  backdrop-filter: blur(4px);
  z-index: 1000;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding-top: 15vh;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-fast);
}

.cmd-palette-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.cmd-palette {
  width: 100%;
  max-width: 600px;
  background: var(--bg-primary);
  border-radius: 12px;
  box-shadow: 0 24px 48px rgba(0,0,0,0.2);
  overflow: hidden;
  transform: scale(0.95) translateY(-20px);
  transition: transform var(--transition-normal);
}

.cmd-palette-overlay.active .cmd-palette {
  transform: scale(1) translateY(0);
}

.cmd-input-wrap {
  padding: var(--sp-2) var(--sp-3);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: var(--sp-2);
}

.cmd-input-wrap i {
  color: var(--text-muted);
  font-size: 1.25rem;
}

.cmd-input {
  width: 100%;
  border: none;
  outline: none;
  font-size: 1.125rem;
  font-family: inherit;
  color: var(--text-main);
  background: transparent;
}

.cmd-list {
  max-height: 300px;
  overflow-y: auto;
  padding: var(--sp-1);
}

.cmd-item {
  padding: var(--sp-2) var(--sp-3);
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  cursor: pointer;
  border-radius: 6px;
  color: var(--text-main);
  transition: background var(--transition-fast);
}

.cmd-item:hover, .cmd-item.active {
  background: var(--surface-hover);
  color: var(--brand-blue);
}

.cmd-item-shortcut {
  margin-left: auto;
  font-size: 0.75rem;
  color: var(--text-muted);
  background: var(--surface);
  padding: 2px 6px;
  border-radius: 4px;
  border: 1px solid var(--border);
}

/* Animations classes for intersection observer */
.fade-up {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

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