@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600&family=Playfair+Display:ital,wght@0,400;0,500;0,600;0,700;1,400&display=swap');

/* --- DESIGN SYSTEM VARIABLES (Editorial Luxe) --- */
:root {
  /* Colors */
  --color-primary: #0A0A0A;       /* 60% Obsidian Black Background */
  --color-secondary: #F5F5F7;     /* 30% Alabaster White for body text/surfaces */
  --color-accent: #D4AF37;        /* 10% Gold Accent for focal highlights */
  
  --color-dark-surface: #151515;
  --color-dark-border: #2C2C2C;
  --color-muted: #A0A0A5;
  --color-success: #34C759;
  --color-error: #FF3B30;

  /* Typography */
  --font-sans: 'Inter', sans-serif;
  --font-serif: 'Playfair Display', serif; /* Editorial elegance */
  
  --font-size-xs: 0.8rem;
  --font-size-sm: 0.88rem;
  --font-size-base: 1rem;
  --font-size-h4: 1.25rem;
  --font-size-h3: 1.563rem;
  --font-size-h2: 1.953rem;
  --font-size-h1: 2.441rem;
  --font-size-hero: 3.2rem;

  /* 8px Base Grid spacing */
  --space-1: 8px;
  --space-2: 16px;
  --space-3: 24px;
  --space-4: 32px;
  --space-5: 40px;
  --space-6: 48px;
  --space-8: 64px;
  --space-10: 80px;

  /* Motion & Animations */
  --transition-smooth: all 0.6s cubic-bezier(0.16, 1, 0.3, 1);
  
  /* --- MD3 WEB COMPONENT overrides (theme.json mapped) --- */
  --md-sys-color-primary: var(--color-accent);
  --md-sys-color-on-primary: var(--color-primary);
  --md-sys-color-primary-container: var(--color-dark-surface);
  --md-sys-color-on-primary-container: var(--color-secondary);
  --md-sys-color-surface: var(--color-dark-surface);
  --md-sys-color-on-surface: var(--color-secondary);
  --md-sys-color-on-surface-variant: var(--color-muted);
  --md-sys-color-outline: var(--color-dark-border);
  --md-sys-color-background: var(--color-primary);
  --md-sys-color-on-background: var(--color-secondary);
  --md-sys-color-surface-container: var(--color-dark-surface);
  --md-sys-color-surface-container-high: var(--color-dark-surface);
  
  /* Sharp (0px) shapes */
  --md-sys-shape-corner-extra-small: 0px;
  --md-sys-shape-corner-small: 0px;
  --md-sys-shape-corner-medium: 0px;
  --md-sys-shape-corner-large: 0px;
  --md-sys-shape-corner-extra-large: 0px;

  /* Flat elevations */
  --md-sys-elevation-level-0: none;
  --md-sys-elevation-level-1: none;
  --md-sys-elevation-level-2: none;
  --md-sys-elevation-level-3: none;
  --md-sys-elevation-level-4: none;
  --md-sys-elevation-level-5: none;

  /* Typography mappings */
  --md-filled-button-label-text-font: var(--font-sans);
  --md-outlined-button-label-text-font: var(--font-sans);
  --md-text-button-label-text-font: var(--font-sans);
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  background-color: var(--color-primary);
  color: var(--color-secondary);
  font-family: var(--font-sans);
  -webkit-font-smoothing: antialiased;
}

body {
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* --- TYPOGRAPHY --- */
h1, h2, h3, h4, .font-serif {
  font-family: var(--font-serif);
  font-weight: 400;
  color: #FFFFFF;
  letter-spacing: -0.01em;
}

h1 {
  font-size: var(--font-size-hero);
  line-height: 1.1;
  margin-bottom: var(--space-3);
}

h2 {
  font-size: var(--font-size-h2);
  line-height: 1.2;
  margin-bottom: var(--space-3);
}

h3 {
  font-size: var(--font-size-h3);
  line-height: 1.3;
  margin-bottom: var(--space-2);
}

p {
  font-size: var(--font-size-base);
  color: #D1D1D6;
  margin-bottom: var(--space-3);
  font-weight: 300;
}

strong {
  color: var(--color-accent);
  font-weight: 600;
}

/* --- CONTAINER RULE WRAPPERS --- */
.m3-nav-wrapper {
  display: flex;
  gap: var(--space-2);
  align-items: center;
}

.m3-hero-actions-wrapper {
  display: flex;
  gap: var(--space-2);
  margin-top: var(--space-4);
}

.m3-button-full-wrapper {
  display: grid;
  grid-template-columns: 1fr;
}

.m3-checkbox-wrapper {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  cursor: pointer;
}

/* --- THE 20% CREATIVE LAYOUT SHELLS --- */

/* 1. Asymmetrical Split Shell */
.creative-shell-split {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: var(--space-8);
  align-items: center;
  margin-bottom: var(--space-8);
}

.split-left {
  padding-right: var(--space-4);
}

.split-right {
  background-color: var(--color-dark-surface);
  border: 1px solid var(--color-dark-border);
  padding: var(--space-5);
  position: relative;
}

@media (max-width: 992px) {
  .creative-shell-split {
    grid-template-columns: 1fr;
    gap: var(--space-5);
  }
  .split-left {
    padding-right: 0;
  }
}

/* 2. Bento Grid Shell */
.creative-shell-bento {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: var(--space-4);
  margin-top: var(--space-5);
}

.bento-card {
  background-color: var(--color-dark-surface);
  border: 1px solid var(--color-dark-border);
  padding: var(--space-5);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: var(--transition-smooth);
}

.bento-card:hover {
  border-color: var(--color-accent);
}

.bento-card-title {
  color: #FFFFFF;
  margin-bottom: var(--space-2);
}

.bento-span-4 { grid-column: span 4; }
.bento-span-6 { grid-column: span 6; }
.bento-span-8 { grid-column: span 8; }
.bento-span-12 { grid-column: span 12; }

@media (max-width: 992px) {
  .bento-span-4, .bento-span-6, .bento-span-8, .bento-span-12 {
    grid-column: span 12;
  }
}

/* 3. Editorial Arch Shell */
.creative-shell-arch {
  background-color: var(--color-dark-surface);
  border: 1px solid var(--color-dark-border);
  border-top: 3px solid var(--color-accent);
  padding: var(--space-6) var(--space-5);
  margin: var(--space-8) auto;
  max-width: 800px;
  position: relative;
  text-align: center;
}

/* --- ANIMATIONS & SCROLL REVEALS --- */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in-up {
  animation: fadeInUp 0.8s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

/* Scroll reveal structure */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal.revealed {
  opacity: 1;
  transform: translateY(0);
}

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

.section {
  padding: var(--space-8) 0;
}

/* Header & Nav */
.header {
  border-bottom: 1px solid var(--color-dark-border);
  background-color: rgba(10, 10, 10, 0.85);
  backdrop-filter: blur(12px);
  position: sticky;
  top: 0;
  z-index: 100;
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: var(--space-8);
}

.logo {
  font-family: var(--font-serif);
  font-size: var(--font-size-h3);
  font-weight: 500;
  color: #FFFFFF;
}

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

.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--color-secondary);
  font-size: var(--font-size-h3);
  cursor: pointer;
  width: 48px;
  height: 48px;
  align-items: center;
  justify-content: center;
}

@media (max-width: 992px) {
  .nav-toggle {
    display: flex;
  }
  .m3-nav-wrapper {
    display: none;
    position: absolute;
    top: var(--space-8);
    left: 0;
    right: 0;
    background-color: var(--color-primary);
    border-bottom: 1px solid var(--color-dark-border);
    flex-direction: column;
    padding: var(--space-4);
    gap: var(--space-2);
    align-items: stretch;
  }
  .m3-nav-wrapper.active {
    display: flex;
  }
}

/* Value Stack Pricing Elements */
.price-value {
  font-size: var(--font-size-hero);
  font-family: var(--font-serif);
  color: var(--color-accent);
  margin: var(--space-2) 0;
}

.price-features-list {
  list-style: none;
  margin: var(--space-3) 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.price-features-list li {
  font-size: var(--font-size-sm);
  color: #C7C7CC;
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.price-features-list li::before {
  content: "✓";
  color: var(--color-accent);
  font-weight: bold;
}

/* Footer styling */
.footer {
  border-top: 1px solid var(--color-dark-border);
  background-color: var(--color-primary);
  padding: var(--space-6) 0;
  margin-top: auto;
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-3);
}

.footer-text {
  font-size: var(--font-size-sm);
  color: var(--color-muted);
}