/* ============================================
   BOLLETTA SMART — DESIGN SYSTEM
   Apple Liquid Glass · Enterprise Dark
   ============================================ */

/* ---------- Google Fonts ---------- */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=JetBrains+Mono:wght@400;500&display=swap');

/* ---------- CSS Custom Properties ---------- */
:root {
  /* ---- Color Palette ---- */
  /* Primary — Teal / Cyan */
  --primary-50: #F0FDFA;
  --primary-100: #CCFBF1;
  --primary-200: #99F6E4;
  --primary-300: #5EEAD4;
  --primary-400: #2DD4BF;
  --primary-500: #14B8A6;
  --primary-600: #0D9488;
  --primary-700: #0F766E;
  --primary-800: #115E59;
  --primary-900: #134E4A;

  /* Accent — Cyan */
  --accent-50: #ECFEFF;
  --accent-100: #CFFAFE;
  --accent-200: #A5F3FC;
  --accent-300: #67E8F9;
  --accent-400: #22D3EE;
  --accent-500: #06B6D4;
  --accent-600: #0891B2;
  --accent-700: #0E7490;

  /* Electric — Indigo / Blue */
  --electric-400: #818CF8;
  --electric-500: #6366F1;
  --electric-600: #4F46E5;

  /* Success — Emerald */
  --success-50: #ECFDF5;
  --success-100: #D1FAE5;
  --success-200: #A7F3D0;
  --success-300: #6EE7B7;
  --success-400: #34D399;
  --success-500: #10B981;
  --success-600: #059669;
  --success-700: #047857;

  /* Warning — Amber */
  --warning-50: #FFFBEB;
  --warning-100: #FEF3C7;
  --warning-200: #FDE68A;
  --warning-300: #FCD34D;
  --warning-400: #FBBF24;
  --warning-500: #F59E0B;
  --warning-600: #D97706;

  /* Danger — Rose */
  --danger-50: #FFF1F2;
  --danger-100: #FFE4E6;
  --danger-200: #FECDD3;
  --danger-300: #FDA4AF;
  --danger-400: #FB7185;
  --danger-500: #F43F5E;
  --danger-600: #E11D48;

  /* Neutral — Slate */
  --slate-50: #F8FAFC;
  --slate-100: #F1F5F9;
  --slate-200: #E2E8F0;
  --slate-300: #CBD5E1;
  --slate-400: #94A3B8;
  --slate-500: #64748B;
  --slate-600: #475569;
  --slate-700: #334155;
  --slate-800: #1E293B;
  --slate-900: #0F172A;
  --slate-950: #020617;

  /* ---- Dark Glass Surfaces ---- */
  --color-bg: #080C14;
  --color-bg-alt: #0B1120;
  --color-bg-elevated: rgba(15, 23, 42, 0.60);
  --color-bg-subtle: rgba(15, 23, 42, 0.40);
  --color-bg-card: rgba(15, 25, 50, 0.55);
  --color-bg-card-hover: rgba(20, 32, 60, 0.65);
  --color-bg-input: rgba(15, 23, 42, 0.70);
  --color-bg-overlay: rgba(0, 0, 0, 0.60);

  /* Text on dark */
  --color-text: #F1F5F9;
  --color-text-secondary: #94A3B8;
  --color-text-tertiary: #64748B;
  --color-text-muted: #475569;
  --color-text-on-primary: #FFFFFF;
  --color-text-accent: #2DD4BF;

  /* Borders */
  --color-border: rgba(148, 163, 184, 0.10);
  --color-border-subtle: rgba(148, 163, 184, 0.06);
  --color-border-strong: rgba(148, 163, 184, 0.18);
  --color-border-glow: rgba(45, 212, 191, 0.15);

  /* Links */
  --color-link: #2DD4BF;
  --color-link-hover: #5EEAD4;

  /* ---- Glass Effects ---- */
  --glass-surface: linear-gradient(
    135deg,
    rgba(15, 23, 42, 0.72) 0%,
    rgba(15, 23, 42, 0.48) 100%
  );
  --glass-surface-strong: linear-gradient(
    135deg,
    rgba(15, 23, 42, 0.82) 0%,
    rgba(15, 23, 42, 0.62) 100%
  );
  --glass-surface-light: linear-gradient(
    135deg,
    rgba(30, 41, 59, 0.52) 0%,
    rgba(15, 23, 42, 0.36) 100%
  );
  --glass-stroke: rgba(148, 163, 184, 0.08);
  --glass-stroke-strong: rgba(148, 163, 184, 0.14);
  --glass-blur: blur(40px) saturate(180%);
  --glass-blur-light: blur(24px) saturate(160%);
  --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.40),
                  0 0 0 1px rgba(148, 163, 184, 0.06),
                  inset 0 1px 0 rgba(255, 255, 255, 0.03);
  --glass-shadow-hover: 0 12px 48px rgba(0, 0, 0, 0.50),
                        0 0 0 1px rgba(148, 163, 184, 0.10),
                        inset 0 1px 0 rgba(255, 255, 255, 0.05);

  /* ---- Gradients ---- */
  --gradient-primary: linear-gradient(135deg, #0D9488 0%, #14B8A6 50%, #2DD4BF 100%);
  --gradient-primary-soft: linear-gradient(135deg, #115E59 0%, #0D9488 100%);
  --gradient-hero: radial-gradient(ellipse at 20% 50%, rgba(45, 212, 191, 0.08) 0%, transparent 50%),
                   radial-gradient(ellipse at 80% 20%, rgba(99, 102, 241, 0.06) 0%, transparent 40%),
                   radial-gradient(ellipse at 50% 80%, rgba(244, 63, 94, 0.04) 0%, transparent 40%),
                   linear-gradient(180deg, #080C14 0%, #0B1120 100%);
  --gradient-mesh: radial-gradient(circle at 18% 16%, rgba(45, 212, 191, 0.06) 0%, transparent 34%),
                   radial-gradient(circle at 82% 12%, rgba(99, 102, 241, 0.04) 0%, transparent 28%),
                   radial-gradient(circle at 22% 82%, rgba(244, 114, 182, 0.03) 0%, transparent 24%),
                   radial-gradient(circle at 74% 78%, rgba(45, 212, 191, 0.04) 0%, transparent 32%);
  --gradient-success: linear-gradient(135deg, #059669 0%, #10B981 100%);
  --gradient-warning: linear-gradient(135deg, #D97706 0%, #F59E0B 100%);
  --gradient-danger: linear-gradient(135deg, #E11D48 0%, #F43F5E 100%);
  --gradient-card-shine: linear-gradient(
    135deg,
    rgba(255, 255, 255, 0.03) 0%,
    rgba(255, 255, 255, 0) 60%
  );
  --gradient-neon-teal: linear-gradient(135deg, #0D9488 0%, #2DD4BF 100%);
  --gradient-neon-indigo: linear-gradient(135deg, #4F46E5 0%, #818CF8 100%);

  /* ---- Typography ---- */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Segoe UI', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', 'SF Mono', 'Fira Code', monospace;

  --text-xs: 0.6875rem;    /* 11px */
  --text-sm: 0.8125rem;    /* 13px */
  --text-base: 0.9375rem;  /* 15px */
  --text-md: 1rem;         /* 16px */
  --text-lg: 1.125rem;     /* 18px */
  --text-xl: 1.25rem;      /* 20px */
  --text-2xl: 1.5rem;      /* 24px */
  --text-3xl: 1.875rem;    /* 30px */
  --text-4xl: 2.25rem;     /* 36px */
  --text-5xl: 3rem;        /* 48px */
  --text-6xl: 3.75rem;     /* 60px */

  --leading-tight: 1.15;
  --leading-snug: 1.3;
  --leading-normal: 1.6;
  --leading-relaxed: 1.75;

  --font-light: 300;
  --font-regular: 400;
  --font-medium: 500;
  --font-semibold: 600;
  --font-bold: 700;
  --font-extrabold: 800;

  --tracking-tight: -0.025em;
  --tracking-normal: 0;
  --tracking-wide: 0.025em;
  --tracking-wider: 0.05em;
  --tracking-widest: 0.1em;

  /* ---- 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;
  --space-32: 8rem;

  /* ---- Radius ---- */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.25rem;
  --radius-3xl: 1.5rem;
  --radius-full: 9999px;

  /* ---- Shadows ---- */
  --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.4), 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.35), 0 2px 4px rgba(0, 0, 0, 0.25);
  --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.35), 0 4px 6px rgba(0, 0, 0, 0.20);
  --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.35), 0 8px 10px rgba(0, 0, 0, 0.20);
  --shadow-2xl: 0 25px 50px rgba(0, 0, 0, 0.50);
  --shadow-inner: inset 0 2px 4px rgba(0, 0, 0, 0.30);
  --shadow-glow-primary: 0 0 20px rgba(45, 212, 191, 0.15), 0 0 60px rgba(45, 212, 191, 0.05);
  --shadow-glow-success: 0 0 20px rgba(16, 185, 129, 0.15);
  --shadow-glow-warning: 0 0 20px rgba(245, 158, 11, 0.15);
  --shadow-glow-danger: 0 0 20px rgba(244, 63, 94, 0.15);
  --shadow-glow-electric: 0 0 20px rgba(99, 102, 241, 0.15);
  --shadow-card: var(--glass-shadow);
  --shadow-card-hover: var(--glass-shadow-hover);

  /* ---- Transitions ---- */
  --ease-out: cubic-bezier(0.33, 1, 0.68, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --duration-fast: 150ms;
  --duration-normal: 250ms;
  --duration-slow: 400ms;
  --duration-slower: 600ms;

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

  /* ---- Container ---- */
  --container-sm: 640px;
  --container-md: 768px;
  --container-lg: 1024px;
  --container-xl: 1200px;
  --container-2xl: 1400px;
}

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

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

body {
  font-family: var(--font-sans);
  font-size: var(--text-base);
  font-weight: var(--font-regular);
  line-height: var(--leading-normal);
  color: var(--color-text);
  background-color: var(--color-bg);
  background-image: var(--gradient-mesh);
  background-attachment: fixed;
  min-height: 100vh;
  overflow-x: hidden;
}

img, picture, video, canvas, svg {
  display: block;
  max-width: 100%;
}

input, button, textarea, select {
  font: inherit;
  color: inherit;
}

a {
  color: var(--color-link);
  text-decoration: none;
  transition: color var(--duration-fast) var(--ease-out);
}

a:hover {
  color: var(--color-link-hover);
}

button {
  cursor: pointer;
  border: none;
  background: none;
}

ul, ol {
  list-style: none;
}

h1, h2, h3, h4, h5, h6 {
  font-weight: var(--font-bold);
  line-height: var(--leading-tight);
  letter-spacing: var(--tracking-tight);
  color: var(--color-text);
}

h1 { font-size: var(--text-5xl); }
h2 { font-size: var(--text-4xl); }
h3 { font-size: var(--text-3xl); }
h4 { font-size: var(--text-2xl); }
h5 { font-size: var(--text-xl); }
h6 { font-size: var(--text-lg); }

p {
  color: var(--color-text-secondary);
  line-height: var(--leading-relaxed);
}

/* ---------- Layout Utilities ---------- */
.container {
  width: 100%;
  max-width: var(--container-xl);
  margin: 0 auto;
  padding: 0 var(--space-6);
}

.container--narrow { max-width: var(--container-md); }
.container--wide { max-width: var(--container-2xl); }

.section { padding: var(--space-20) 0; }
.section--sm { padding: var(--space-12) 0; }
.section--lg { padding: var(--space-32) 0; }

/* Flex helpers */
.flex { display: flex; }
.flex-col { flex-direction: column; }
.flex-wrap { flex-wrap: wrap; }
.items-center { align-items: center; }
.items-start { align-items: flex-start; }
.items-end { align-items: flex-end; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.justify-end { justify-content: flex-end; }
.gap-1 { gap: var(--space-1); }
.gap-2 { gap: var(--space-2); }
.gap-3 { gap: var(--space-3); }
.gap-4 { gap: var(--space-4); }
.gap-5 { gap: var(--space-5); }
.gap-6 { gap: var(--space-6); }
.gap-8 { gap: var(--space-8); }
.gap-10 { gap: var(--space-10); }
.gap-12 { gap: var(--space-12); }

/* Grid helpers */
.grid { display: grid; }
.grid-2 { grid-template-columns: repeat(2, 1fr); gap: var(--space-6); }
.grid-3 { grid-template-columns: repeat(3, 1fr); gap: var(--space-6); }
.grid-4 { grid-template-columns: repeat(4, 1fr); gap: var(--space-6); }

/* Text helpers */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.font-light { font-weight: var(--font-light); }
.font-medium { font-weight: var(--font-medium); }
.font-semibold { font-weight: var(--font-semibold); }
.font-bold { font-weight: var(--font-bold); }

.text-xs { font-size: var(--text-xs); }
.text-sm { font-size: var(--text-sm); }
.text-base { font-size: var(--text-base); }
.text-lg { font-size: var(--text-lg); }
.text-xl { font-size: var(--text-xl); }
.text-2xl { font-size: var(--text-2xl); }

.text-primary { color: var(--primary-400); }
.text-secondary { color: var(--color-text-secondary); }
.text-tertiary { color: var(--color-text-tertiary); }
.text-success { color: var(--success-400); }
.text-warning { color: var(--warning-400); }
.text-danger { color: var(--danger-400); }

.uppercase {
  text-transform: uppercase;
  letter-spacing: var(--tracking-widest);
  font-size: var(--text-xs);
  font-weight: var(--font-semibold);
}

/* Spacing */
.mt-1 { margin-top: var(--space-1); }
.mt-2 { margin-top: var(--space-2); }
.mt-3 { margin-top: var(--space-3); }
.mt-4 { margin-top: var(--space-4); }
.mt-6 { margin-top: var(--space-6); }
.mt-8 { margin-top: var(--space-8); }
.mt-10 { margin-top: var(--space-10); }
.mt-12 { margin-top: var(--space-12); }
.mb-2 { margin-bottom: var(--space-2); }
.mb-3 { margin-bottom: var(--space-3); }
.mb-4 { margin-bottom: var(--space-4); }
.mb-6 { margin-bottom: var(--space-6); }
.mb-8 { margin-bottom: var(--space-8); }
.mb-10 { margin-bottom: var(--space-10); }

/* Visibility */
.hidden { display: none !important; }
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  border: 0;
}

/* ---------- Animations ---------- */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInDown {
  from { opacity: 0; transform: translateY(-12px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes slideInLeft {
  from { opacity: 0; transform: translateX(-24px); }
  to { opacity: 1; transform: translateX(0); }
}

@keyframes slideInRight {
  from { opacity: 0; transform: translateX(24px); }
  to { opacity: 1; transform: translateX(0); }
}

@keyframes scaleIn {
  from { opacity: 0; transform: scale(0.92); }
  to { opacity: 1; transform: scale(1); }
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

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

@keyframes shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

@keyframes progressBar {
  0% { width: 0%; }
  100% { width: 100%; }
}

@keyframes float {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-6px); }
}

@keyframes gradientShift {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

@keyframes countUp {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes glowPulse {
  0%, 100% { box-shadow: 0 0 20px rgba(45, 212, 191, 0.10); }
  50% { box-shadow: 0 0 40px rgba(45, 212, 191, 0.20); }
}

@keyframes borderGlow {
  0%, 100% { border-color: rgba(45, 212, 191, 0.10); }
  50% { border-color: rgba(45, 212, 191, 0.25); }
}

@keyframes neonFlicker {
  0%, 100% { opacity: 1; }
  92% { opacity: 1; }
  93% { opacity: 0.8; }
  94% { opacity: 1; }
}

.animate-fade-in { animation: fadeIn var(--duration-slow) var(--ease-out) forwards; }
.animate-fade-in-up { animation: fadeInUp var(--duration-slower) var(--ease-out) forwards; }
.animate-fade-in-down { animation: fadeInDown var(--duration-normal) var(--ease-out) forwards; }
.animate-slide-left { animation: slideInLeft var(--duration-slow) var(--ease-out) forwards; }
.animate-slide-right { animation: slideInRight var(--duration-slow) var(--ease-out) forwards; }
.animate-scale-in { animation: scaleIn var(--duration-slow) var(--ease-out) forwards; }
.animate-pulse { animation: pulse 2s var(--ease-in-out) infinite; }
.animate-spin { animation: spin 1s linear infinite; }
.animate-float { animation: float 3s var(--ease-in-out) infinite; }
.animate-glow { animation: glowPulse 3s var(--ease-in-out) infinite; }

/* Stagger delays */
.delay-1 { animation-delay: 80ms; }
.delay-2 { animation-delay: 160ms; }
.delay-3 { animation-delay: 240ms; }
.delay-4 { animation-delay: 320ms; }
.delay-5 { animation-delay: 400ms; }
.delay-6 { animation-delay: 480ms; }
.delay-7 { animation-delay: 560ms; }
.delay-8 { animation-delay: 640ms; }

/* Start invisible for animations */
[class*="animate-fade-in"],
[class*="animate-slide-"],
[class*="animate-scale-in"] {
  opacity: 0;
}

/* ---------- Scrollbar Styling ---------- */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: rgba(148, 163, 184, 0.20);
  border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
  background: rgba(148, 163, 184, 0.35);
}

/* ---------- Selection ---------- */
::selection {
  background-color: rgba(45, 212, 191, 0.25);
  color: var(--color-text);
}

/* ---------- Glass Card Utility ---------- */
.glass-card {
  background: var(--glass-surface);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-stroke);
  border-radius: var(--radius-2xl);
  box-shadow: var(--glass-shadow);
  transition: box-shadow var(--duration-normal) var(--ease-out),
              border-color var(--duration-normal) var(--ease-out);
}

.glass-card:hover {
  box-shadow: var(--glass-shadow-hover);
  border-color: var(--glass-stroke-strong);
}

.glass-card--strong {
  background: var(--glass-surface-strong);
}

.glass-card--light {
  background: var(--glass-surface-light);
}