/* ============================================
   NEESIO INK — Design System
   Premium dark theme inspired by Inkitt/Wattpad
   ============================================ */

/* ---- Google Fonts ---- */
@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:ital,wght@0,400;0,600;0,700;0,800;1,400;1,600&family=DM+Sans:wght@400;500;700&family=Inter:wght@400;500;600&family=JetBrains+Mono:wght@400;500&display=swap');

/* ---- CSS Custom Properties ---- */
:root {
  /* Brand Colors (from INK) */
  --ink-primary: #8b5cf6;
  --ink-primary-light: #a78bfa;
  --ink-primary-dark: #7c3aed;
  --ink-primary-glow: rgba(139, 92, 246, 0.3);

  --ink-secondary: #ec4899;
  --ink-secondary-light: #f472b6;
  --ink-secondary-dark: #db2777;

  --ink-accent: #f59e0b;
  --ink-accent-light: #fbbf24;
  --ink-accent-dark: #d97706;

  /* Surface Colors (from INK) */
  --bg-deepest: #0a0a0f;
  --bg-deep: #0f0f15;
  --bg-base: #12121a;
  --bg-elevated: #161622;
  --bg-card: #12121e;
  --bg-card-hover: #1a1a2b;
  --bg-surface: #12121a;
  --bg-surface-hover: #1a1a25;

  /* Text Colors */
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --text-disabled: #475569;
  --text-inverse: #0a0a0f;

  /* Border Colors */
  --border-subtle: #2a2a3a;
  --border-default: #2a2a3a;
  --border-strong: #3f3f5a;

  /* Status Colors */
  --status-ongoing: #10b981;
  --status-completed: #8b5cf6;
  --status-hiatus: #f59e0b;
  --status-draft: #64748b;

  /* Gradients */
  --gradient-hero: radial-gradient(circle at top, #1a1032 0%, #0a0a0f 100%);
  --gradient-primary: linear-gradient(135deg, #8b5cf6 0%, #ec4899 100%);
  --gradient-accent: linear-gradient(135deg, #f59e0b 0%, #ec4899 100%);
  --gradient-card: linear-gradient(145deg, rgba(18, 18, 30, 0.96), rgba(15, 15, 25, 0.8));

  /* Shadows */
  --shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  --shadow-xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  --shadow-glow: 0 0 40px rgba(139, 92, 246, 0.3);
  --shadow-glow-strong: 0 0 60px rgba(139, 92, 246, 0.4);

  /* Typography */
  --font-display: 'Playfair Display', serif;
  --font-body: 'DM Sans', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  /* Font Sizes */
  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 1.875rem;
  --text-4xl: 2.25rem;
  --text-5xl: 3rem;
  --text-6xl: 3.75rem;

  /* Spacing */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;

  /* Border Radius */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 400ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-spring: 500ms cubic-bezier(0.34, 1.56, 0.64, 1);

  /* Z-Index */
  --z-behind: -1;
  --z-base: 1;
  --z-dropdown: 100;
  --z-sticky: 200;
  --z-overlay: 300;
  --z-modal: 400;
  --z-toast: 500;

  /* Layout */
  --max-width: 1200px;
  --max-width-narrow: 800px;
  --max-width-reader: 720px;
  --nav-height: 72px;
  --sidebar-width: 280px;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  background: var(--bg-deepest);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  min-height: 100vh;
}

a {
  color: var(--ink-primary-light);
  text-decoration: none;
  transition: color var(--transition-fast);
}

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

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

button {
  font-family: var(--font-body);
  cursor: pointer;
  border: none;
  outline: none;
  background: none;
  color: inherit;
}

input,
textarea,
select {
  font-family: var(--font-body);
  color: var(--text-primary);
  background: var(--bg-card);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-md);
  padding: var(--space-3) var(--space-4);
  font-size: var(--text-base);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  outline: none;
  width: 100%;
}

input:focus,
textarea:focus,
select:focus {
  border-color: var(--ink-primary);
  box-shadow: 0 0 0 3px var(--ink-primary-glow);
}

textarea {
  resize: vertical;
  min-height: 120px;
}

::selection {
  background: var(--ink-primary);
  color: white;
}

::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--bg-deep);
}

::-webkit-scrollbar-thumb {
  background: var(--bg-surface);
  border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--ink-primary-dark);
}

/* ---- Utility Classes ---- */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-6);
}

.container--narrow {
  max-width: var(--max-width-narrow);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ---- Animations ---- */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(12px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(24px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(24px);
  }

  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes shimmer {
  0% {
    background-position: -200% 0;
  }

  100% {
    background-position: 200% 0;
  }
}

@keyframes pulse-glow {

  0%,
  100% {
    box-shadow: 0 0 8px var(--ink-primary-glow);
  }

  50% {
    box-shadow: 0 0 24px var(--ink-primary-glow), 0 0 48px rgba(124, 92, 252, 0.1);
  }
}

@keyframes float {

  0%,
  100% {
    transform: translateY(0);
  }

  50% {
    transform: translateY(-8px);
  }
}

@keyframes typewriter {
  from {
    width: 0;
  }

  to {
    width: 100%;
  }
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

.animate-fade-in {
  animation: fadeIn 0.5s ease-out forwards;
}

.animate-fade-in-up {
  animation: fadeInUp 0.6s ease-out forwards;
}

/* Stagger children animations */
.stagger-children>* {
  opacity: 0;
  animation: fadeInUp 0.5s ease-out forwards;
}

.stagger-children>*:nth-child(1) {
  animation-delay: 0.05s;
}

.stagger-children>*:nth-child(2) {
  animation-delay: 0.1s;
}

.stagger-children>*:nth-child(3) {
  animation-delay: 0.15s;
}

.stagger-children>*:nth-child(4) {
  animation-delay: 0.2s;
}

.stagger-children>*:nth-child(5) {
  animation-delay: 0.25s;
}

.stagger-children>*:nth-child(6) {
  animation-delay: 0.3s;
}

.stagger-children>*:nth-child(7) {
  animation-delay: 0.35s;
}

.stagger-children>*:nth-child(8) {
  animation-delay: 0.4s;
}

.stagger-children>*:nth-child(9) {
  animation-delay: 0.45s;
}

.stagger-children>*:nth-child(10) {
  animation-delay: 0.5s;
}

.stagger-children>*:nth-child(11) {
  animation-delay: 0.55s;
}

.stagger-children>*:nth-child(12) {
  animation-delay: 0.6s;
}