/* ===================================
   VARIÁVEIS CSS - OrçaZap
   Design System - Professional Theme
   =================================== */

:root {
    /* ===== COLOR PALETTE ===== */

    /* Primary - Deep Blue (Trust & Professionalism) */
    --color-primary: #1e40af;
    --color-primary-light: #3b82f6;
    --color-primary-dark: #1e3a8a;
    --color-primary-50: #eff6ff;
    --color-primary-100: #dbeafe;

    /* Secondary - Slate (Sophistication) */
    --color-secondary: #475569;
    --color-secondary-light: #64748b;
    --color-secondary-dark: #334155;

    /* Accent - Emerald (Success & Positivity) */
    --color-accent: #059669;
    --color-accent-light: #10b981;
    --color-accent-dark: #047857;

    /* Neutrals */
    --color-white: #ffffff;
    --color-black: #000000;

    /* Grays - Slate Scale */
    --color-gray-50: #f8fafc;
    --color-gray-100: #f1f5f9;
    --color-gray-200: #e2e8f0;
    --color-gray-300: #cbd5e1;
    --color-gray-400: #94a3b8;
    --color-gray-500: #64748b;
    --color-gray-600: #475569;
    --color-gray-700: #334155;
    --color-gray-800: #1e293b;
    --color-gray-900: #0f172a;

    /* Semantic Colors */
    --color-success: #059669;
    --color-success-light: #ecfdf5;
    --color-success-dark: #047857;
    --color-warning: #d97706;
    --color-warning-light: #fffbeb;
    --color-warning-dark: #b45309;
    --color-error: #dc2626;
    --color-error-light: #fef2f2;
    --color-error-dark: #b91c1c;
    --color-info: #0284c7;
    --color-info-light: #f0f9ff;
    --color-info-dark: #0369a1;

    /* Legacy gradient (for compatibility) */
    --gradient-primary: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    --gradient-success: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-dark) 100%);

    /* ===== SEMANTIC TOKENS ===== */

    /* Backgrounds */
    --bg-primary: var(--color-white);
    --bg-secondary: var(--color-gray-50);
    --bg-tertiary: var(--color-gray-100);
    --bg-card: var(--color-white);
    --bg-elevated: var(--color-white);

    /* Text */
    --text-primary: var(--color-gray-900);
    --text-secondary: var(--color-gray-600);
    --text-muted: var(--color-gray-500);
    --text-inverse: var(--color-white);

    /* Borders */
    --border-color: var(--color-gray-200);
    --border-color-light: var(--color-gray-100);
    --border-color-dark: var(--color-gray-300);

    /* Links */
    --link-color: var(--color-primary);
    --link-hover: var(--color-primary-dark);

    /* ===== TYPOGRAPHY ===== */

    /* Font Family */
    --font-family-base: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --font-family-mono: 'SF Mono', 'Monaco', 'Inconsolata', 'Roboto Mono', monospace;

    /* Font Sizes */
    --font-size-xs: 0.75rem;
    /* 12px */
    --font-size-sm: 0.875rem;
    /* 14px */
    --font-size-base: 1rem;
    /* 16px */
    --font-size-lg: 1.125rem;
    /* 18px */
    --font-size-xl: 1.25rem;
    /* 20px */
    --font-size-2xl: 1.5rem;
    /* 24px */
    --font-size-3xl: 1.875rem;
    /* 30px */
    --font-size-4xl: 2.25rem;
    /* 36px */
    --font-size-5xl: 3rem;
    /* 48px */
    --font-size-6xl: 3.75rem;
    /* 60px */

    /* Font Weights */
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;

    /* Line Heights */
    --line-height-tight: 1.1;
    --line-height-snug: 1.25;
    --line-height-normal: 1.5;
    --line-height-relaxed: 1.625;
    --line-height-loose: 2;

    /* Letter Spacing */
    --letter-spacing-tight: -0.025em;
    --letter-spacing-normal: 0;
    --letter-spacing-wide: 0.025em;

    /* ===== SPACING ===== */

    --space-0: 0;
    --space-1: 0.25rem;
    /* 4px */
    --space-2: 0.5rem;
    /* 8px */
    --space-3: 0.75rem;
    /* 12px */
    --space-4: 1rem;
    /* 16px */
    --space-5: 1.25rem;
    /* 20px */
    --space-6: 1.5rem;
    /* 24px */
    --space-8: 2rem;
    /* 32px */
    --space-10: 2.5rem;
    /* 40px */
    --space-12: 3rem;
    /* 48px */
    --space-16: 4rem;
    /* 64px */
    --space-20: 5rem;
    /* 80px */
    --space-24: 6rem;
    /* 96px */

    /* Legacy spacing aliases */
    --spacing-xs: var(--space-1);
    --spacing-sm: var(--space-2);
    --spacing-md: var(--space-4);
    --spacing-lg: var(--space-6);
    --spacing-xl: var(--space-8);
    --spacing-xxl: var(--space-12);

    /* ===== BORDERS ===== */

    --radius-none: 0;
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-2xl: 24px;
    --radius-full: 9999px;

    --border-width: 1px;
    --border-width-2: 2px;

    /* ===== SHADOWS ===== */

    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px -1px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    --shadow-inner: inset 0 2px 4px 0 rgba(0, 0, 0, 0.05);
    --shadow-none: 0 0 #0000;

    /* ===== TRANSITIONS ===== */

    --transition-fast: 150ms ease;
    --transition-base: 200ms ease;
    --transition-slow: 300ms ease;
    --transition-slower: 500ms ease;

    /* ===== Z-INDEX ===== */

    --z-dropdown: 1000;
    --z-sticky: 1020;
    --z-fixed: 1030;
    --z-modal-backdrop: 1040;
    --z-modal: 1050;
    --z-popover: 1060;
    --z-tooltip: 1070;

    /* ===== CONTAINER WIDTHS ===== */

    --container-sm: 640px;
    --container-md: 768px;
    --container-lg: 1024px;
    --container-xl: 1280px;

    /* ===== NAVBAR ===== */

    --navbar-height: 64px;
    --navbar-bg: rgba(255, 255, 255, 0.98);
    --navbar-border: var(--border-color);
}