/**
 * JC Propostas — Design System Tokens
 * Tokens only. Component styles live in main.css.
 */

:root {
  /* ── Brand (whitelabel overridable) ── */
  --color-brand-primary: #2563EB;
  --color-brand-primary-hover: #1D4ED8;
  --color-brand-primary-text: #FFFFFF;
  --color-brand-accent: #0EA5E9;
  --color-brand-primary-subtle: #EFF6FF;
  --color-border-focus: var(--color-brand-primary);

  /* Legacy aliases — keep until full Tailwind migration */
  --color-primary: var(--color-brand-primary);
  --color-primary-hover: var(--color-brand-primary-hover);
  --color-primary-subtle: #EFF6FF;
  --color-primary-muted: #BFDBFE;
  --color-secondary: #64748B;
  --color-secondary-hover: #475569;
  --color-secondary-subtle: #F1F5F9;

  /* ── Semantic feedback ── */
  --color-success: #16A34A;
  --color-success-hover: #15803D;
  --color-success-bg: #F0FDF4;
  --color-success-subtle: #F0FDF4;
  --color-success-muted: #BBF7D0;
  --color-warning: #D97706;
  --color-warning-hover: #B45309;
  --color-warning-bg: #FFFBEB;
  --color-warning-subtle: #FFFBEB;
  --color-warning-muted: #FDE68A;
  --color-danger: #DC2626;
  --color-danger-hover: #B91C1C;
  --color-danger-bg: #FEF2F2;
  --color-danger-subtle: #FEF2F2;
  --color-danger-muted: #FECACA;
  --color-info: #0284C7;
  --color-info-hover: #0369A1;
  --color-info-bg: #F0F9FF;
  --color-info-subtle: #F0F9FF;
  --color-info-muted: #BAE6FD;

  /* ── Proposal status ── */
  --color-status-draft: #64748B;
  --color-status-draft-bg: #F1F5F9;
  --color-status-in-progress: #2563EB;
  --color-status-in-progress-bg: #EFF6FF;
  --color-status-finalized: #16A34A;
  --color-status-finalized-bg: #F0FDF4;
  --color-status-sent: #7C3AED;
  --color-status-sent-bg: #F5F3FF;

  /* ── Pricing tiers ── */
  --color-tier-basic: #64748B;
  --color-tier-basic-bg: #F8FAFC;
  --color-tier-standard: #2563EB;
  --color-tier-standard-bg: #EFF6FF;
  --color-tier-premium: #D97706;
  --color-tier-premium-bg: #FFFBEB;
  --color-tier-enterprise: #7C3AED;
  --color-tier-enterprise-bg: #F5F3FF;

  /* ── Surfaces & text ── */
  --color-surface: #FFFFFF;
  --color-surface-secondary: #F8FAFC;
  --color-surface-tertiary: #F1F5F9;
  --color-surface-elevated: #FFFFFF;
  --color-surface-overlay: rgba(15, 23, 42, 0.5);
  --color-border: #E2E8F0;
  --color-border-strong: #CBD5E1;
  --color-text-primary: #0F172A;
  --color-text-secondary: #475569;
  --color-text-muted: #94A3B8;
  --color-text-on-brand: #FFFFFF;
  --color-text-inverse: #FFFFFF;
  --color-text-link: #2563EB;
  --color-text-link-hover: #1D4ED8;

  /* ── Focus & selection ── */
  --color-focus-ring: #2563EB;
  --color-selection-bg: #DBEAFE;

  /* ── Typography ── */
  --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, monospace;
  --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;
  --font-normal: 400;
  --font-medium: 500;
  --font-semibold: 600;
  --font-bold: 700;
  --line-height-tight: 1.25;
  --line-height-snug: 1.4;
  --line-height-base: 1.6;
  --line-height-relaxed: 1.75;
  --letter-spacing-tight: -0.025em;

  /* ── Spacing (4px base) ── */
  --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;

  /* ── Layout ── */
  --sidebar-width: 16rem;
  --sidebar-width-collapsed: 4.5rem;
  --topbar-height: 3.5rem;
  --content-max-width: 80rem;
  --sticky-summary-height: 4rem;

  /* ── Borders & radius ── */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-2xl: 24px;
  --radius-full: 9999px;
  --border-default: 1px solid var(--color-border);
  --border-strong: 1px solid var(--color-border-strong);

  /* ── Shadows ── */
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04);
  --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.07), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -4px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.05);

  /* ── Transitions & motion ── */
  --transition-fast: 100ms ease;
  --transition-base: 180ms ease;
  --transition-slow: 300ms ease;
  --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);

  /* ── Z-index scale ── */
  --z-dropdown: 100;
  --z-sticky: 200;
  --z-topbar: 300;
  --z-sidebar: 350;
  --z-modal-backdrop: 400;
  --z-modal: 410;
  --z-toast: 500;
  --z-command-palette: 600;

  /* ── Auth screens ── */
  --auth-card-width: 440px;
  --auth-card-padding: var(--space-10);
  --auth-logo-height: 40px;

  /* ── Breakpoints (reference only — use in media queries) ── */
  /* sm: 640px | md: 768px | lg: 1024px | xl: 1280px */
}

/* ── Dark mode ── */
[data-theme="dark"] {
  --color-brand-primary: #3B82F6;
  --color-brand-primary-hover: #60A5FA;
  --color-brand-primary-subtle: #1E3A5F;
  --color-primary: var(--color-brand-primary);
  --color-primary-hover: var(--color-brand-primary-hover);
  --color-primary-subtle: #1E3A5F;
  --color-primary-muted: #1D4ED8;
  --color-secondary: #94A3B8;
  --color-secondary-hover: #CBD5E1;
  --color-secondary-subtle: #1E293B;

  --color-success: #22C55E;
  --color-success-hover: #4ADE80;
  --color-success-subtle: #14532D;
  --color-success-muted: #166534;
  --color-warning: #F59E0B;
  --color-warning-hover: #FBBF24;
  --color-warning-subtle: #451A03;
  --color-warning-muted: #92400E;
  --color-danger: #EF4444;
  --color-danger-hover: #F87171;
  --color-danger-subtle: #450A0A;
  --color-danger-muted: #991B1B;
  --color-info: #38BDF8;
  --color-info-hover: #7DD3FC;
  --color-info-subtle: #0C4A6E;
  --color-info-muted: #075985;

  --color-status-draft: #94A3B8;
  --color-status-draft-bg: #1E293B;
  --color-status-in-progress: #60A5FA;
  --color-status-in-progress-bg: #1E3A5F;
  --color-status-finalized: #4ADE80;
  --color-status-finalized-bg: #14532D;
  --color-status-sent: #A78BFA;
  --color-status-sent-bg: #2E1065;

  --color-tier-basic: #94A3B8;
  --color-tier-basic-bg: #1E293B;
  --color-tier-standard: #60A5FA;
  --color-tier-standard-bg: #1E3A5F;
  --color-tier-premium: #FBBF24;
  --color-tier-premium-bg: #451A03;
  --color-tier-enterprise: #A78BFA;
  --color-tier-enterprise-bg: #2E1065;

  --color-surface: #0F172A;
  --color-surface-secondary: #1E293B;
  --color-surface-tertiary: #334155;
  --color-surface-elevated: #1E293B;
  --color-surface-overlay: rgba(0, 0, 0, 0.7);
  --color-border: #334155;
  --color-border-strong: #475569;
  --color-text-primary: #F1F5F9;
  --color-text-secondary: #94A3B8;
  --color-text-muted: #64748B;
  --color-text-inverse: #0F172A;
  --color-text-link: #60A5FA;
  --color-text-link-hover: #93C5FD;

  --color-focus-ring: #60A5FA;
  --color-selection-bg: #1E3A5F;

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4), 0 2px 4px -2px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.45), 0 4px 6px -4px rgba(0, 0, 0, 0.35);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.5), 0 8px 10px -6px rgba(0, 0, 0, 0.4);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --color-primary: #3B82F6;
    --color-primary-hover: #60A5FA;
    --color-primary-subtle: #1E3A5F;
    --color-primary-muted: #1D4ED8;
    --color-secondary: #94A3B8;
    --color-secondary-hover: #CBD5E1;
    --color-secondary-subtle: #1E293B;

    --color-success: #22C55E;
    --color-success-hover: #4ADE80;
    --color-success-subtle: #14532D;
    --color-success-muted: #166534;
    --color-warning: #F59E0B;
    --color-warning-hover: #FBBF24;
    --color-warning-subtle: #451A03;
    --color-warning-muted: #92400E;
    --color-danger: #EF4444;
    --color-danger-hover: #F87171;
    --color-danger-subtle: #450A0A;
    --color-danger-muted: #991B1B;
    --color-info: #38BDF8;
    --color-info-hover: #7DD3FC;
    --color-info-subtle: #0C4A6E;
    --color-info-muted: #075985;

    --color-status-draft: #94A3B8;
    --color-status-draft-bg: #1E293B;
    --color-status-in-progress: #60A5FA;
    --color-status-in-progress-bg: #1E3A5F;
    --color-status-finalized: #4ADE80;
    --color-status-finalized-bg: #14532D;
    --color-status-sent: #A78BFA;
    --color-status-sent-bg: #2E1065;

    --color-tier-basic: #94A3B8;
    --color-tier-basic-bg: #1E293B;
    --color-tier-standard: #60A5FA;
    --color-tier-standard-bg: #1E3A5F;
    --color-tier-premium: #FBBF24;
    --color-tier-premium-bg: #451A03;
    --color-tier-enterprise: #A78BFA;
    --color-tier-enterprise-bg: #2E1065;

    --color-surface: #0F172A;
    --color-surface-secondary: #1E293B;
    --color-surface-tertiary: #334155;
    --color-surface-elevated: #1E293B;
    --color-surface-overlay: rgba(0, 0, 0, 0.7);
    --color-border: #334155;
    --color-border-strong: #475569;
    --color-text-primary: #F1F5F9;
    --color-text-secondary: #94A3B8;
    --color-text-muted: #64748B;
    --color-text-inverse: #0F172A;
    --color-text-link: #60A5FA;
    --color-text-link-hover: #93C5FD;

    --color-focus-ring: #60A5FA;
    --color-selection-bg: #1E3A5F;

    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4), 0 2px 4px -2px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.45), 0 4px 6px -4px rgba(0, 0, 0, 0.35);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.5), 0 8px 10px -6px rgba(0, 0, 0, 0.4);
  }
}

[hidden] {
  display: none !important;
}

/* ── Global resets (cross-browser) ── */
html {
  color-scheme: light;
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-feature-settings: "kern" 1, "liga" 1;
  scroll-behavior: smooth;
}

html[data-theme="dark"] {
  color-scheme: dark;
}

@media (prefers-color-scheme: dark) {
  html:not([data-theme="light"]) {
    color-scheme: dark;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

* {
  -webkit-tap-highlight-color: transparent;
}

input,
textarea,
select,
button {
  font-family: inherit;
  font-size: inherit;
  line-height: inherit;
  color: inherit;
}

input:not([type="checkbox"]):not([type="radio"]),
textarea,
select {
  -webkit-appearance: none;
  appearance: none;
}

input[type="checkbox"],
input[type="radio"] {
  width: 1.125rem;
  height: 1.125rem;
  flex-shrink: 0;
  margin: 0;
  accent-color: var(--color-primary);
  cursor: pointer;
}

input[type="text"],
input[type="email"],
input[type="password"],
input[type="number"],
input[type="tel"],
input[type="url"],
input[type="search"],
select,
textarea {
  font-size: 1rem;
}

button,
a,
[role="button"] {
  touch-action: manipulation;
}

button,
nav,
.sidebar,
.toolbar {
  user-select: none;
  -webkit-user-select: none;
}

input[type="number"]::-webkit-inner-spin-button,
input[type="number"]::-webkit-outer-spin-button {
  -webkit-appearance: none;
}

input[type="number"] {
  -moz-appearance: textfield;
}

input[type="search"]::-webkit-search-decoration,
input[type="search"]::-webkit-search-cancel-button {
  -webkit-appearance: none;
}