/* ===================================
   FORTEXA BRAND TOKENS
   Centralized design system for consistent branding
   =================================== */

/* Typography Imports */
@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@400;500;600;700;800;900&family=DM+Sans:wght@400;500;600;700&display=swap');

:root {
    /* ============ BRAND IDENTITY ============ */
    --brand-name: 'Fortexa';
    --brand-tagline: 'Secure, transparent blockchain recovery';
    
    /* ============ TYPOGRAPHY ============ */
    --font-heading: 'Outfit', system-ui, -apple-system, sans-serif;
    --font-body: 'DM Sans', system-ui, -apple-system, sans-serif;
    
    /* Font Sizes */
    --text-xs: 0.75rem;      /* 12px */
    --text-sm: 0.875rem;     /* 14px */
    --text-base: 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 */
    
    /* Font Weights */
    --font-normal: 400;
    --font-medium: 500;
    --font-semibold: 600;
    --font-bold: 700;
    --font-extrabold: 800;
    --font-black: 900;
    
    /* Line Heights */
    --leading-tight: 1.15;
    --leading-snug: 1.375;
    --leading-normal: 1.5;
    --leading-relaxed: 1.625;
    --leading-loose: 2;
    
    /* ============ COLOR SYSTEM ============ */
    
    /* Primary - Deep Teal/Cyan (Trust, Security, Technology) */
    --primary-50: #ecfeff;
    --primary-100: #cffafe;
    --primary-200: #a5f3fc;
    --primary-300: #67e8f9;
    --primary-400: #22d3ee;
    --primary-500: #06b6d4;
    --primary-600: #0891b2;
    --primary-700: #0e7490;
    --primary-800: #155e75;
    --primary-900: #164e63;
    --primary: var(--primary-600);
    --primary-dark: var(--primary-700);
    --primary-light: var(--primary-400);
    
    /* Accent - Electric Blue (Energy, Innovation) */
    --accent-50: #eff6ff;
    --accent-100: #dbeafe;
    --accent-200: #bfdbfe;
    --accent-300: #93c5fd;
    --accent-400: #60a5fa;
    --accent-500: #3b82f6;
    --accent-600: #2563eb;
    --accent-700: #1d4ed8;
    --accent-800: #1e40af;
    --accent-900: #1e3a8a;
    --accent: var(--accent-500);
    
    /* Secondary - Emerald (Success, Growth) */
    --secondary-50: #ecfdf5;
    --secondary-100: #d1fae5;
    --secondary-200: #a7f3d0;
    --secondary-300: #6ee7b7;
    --secondary-400: #34d399;
    --secondary-500: #10b981;
    --secondary-600: #059669;
    --secondary-700: #047857;
    --secondary-800: #065f46;
    --secondary-900: #064e3b;
    --secondary: var(--secondary-600);
    
    /* Neutrals - Ink/Navy (Professional, Modern) */
    --gray-50: #f8fafc;
    --gray-100: #f1f5f9;
    --gray-200: #e2e8f0;
    --gray-300: #cbd5e1;
    --gray-400: #94a3b8;
    --gray-500: #64748b;
    --gray-600: #475569;
    --gray-700: #334155;
    --gray-800: #1e293b;
    --gray-900: #0f172a;
    --gray-950: #020617;
    
    /* Semantic Colors */
    --success: #10b981;
    --success-light: #d1fae5;
    --success-dark: #065f46;
    
    --warning: #f59e0b;
    --warning-light: #fef3c7;
    --warning-dark: #92400e;
    
    --danger: #ef4444;
    --danger-light: #fee2e2;
    --danger-dark: #991b1b;
    
    --info: #3b82f6;
    --info-light: #dbeafe;
    --info-dark: #1e40af;
    
    /* Background Gradients */
    --bg-hero: linear-gradient(135deg, #0f172a 0%, #1e293b 50%, #0f172a 100%);
    --bg-hero-light: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    --bg-card: linear-gradient(135deg, rgba(255,255,255,0.05) 0%, rgba(255,255,255,0.02) 100%);
    --bg-primary-gradient: linear-gradient(135deg, var(--primary-600) 0%, var(--primary-700) 100%);
    --bg-accent-gradient: linear-gradient(135deg, var(--accent-500) 0%, var(--accent-600) 100%);
    
    /* ============ SPACING SCALE ============ */
    --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 */
    
    /* ============ BORDER RADIUS ============ */
    --radius-sm: 0.375rem;   /* 6px */
    --radius-md: 0.5rem;     /* 8px */
    --radius-lg: 0.75rem;    /* 12px */
    --radius-xl: 1rem;       /* 16px */
    --radius-2xl: 1.5rem;    /* 24px */
    --radius-full: 9999px;
    
    /* ============ SHADOWS ============ */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    --shadow-glow: 0 0 20px rgba(13, 148, 136, 0.3);
    --shadow-glow-accent: 0 0 20px rgba(245, 158, 11, 0.3);
    
    /* ============ TRANSITIONS ============ */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 200ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 300ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-bounce: 500ms cubic-bezier(0.34, 1.56, 0.64, 1);
    
    /* ============ Z-INDEX SCALE ============ */
    --z-base: 0;
    --z-dropdown: 1000;
    --z-sticky: 1100;
    --z-fixed: 1200;
    --z-modal-backdrop: 1300;
    --z-modal: 1400;
    --z-popover: 1500;
    --z-tooltip: 1600;
    
    /* ============ LAYOUT ============ */
    --container-max: 1280px;
    --container-padding: 2rem;
    --header-height: 80px;
}

/* ============ GLOBAL RESETS & BASE STYLES ============ */

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

body {
    font-family: var(--font-body);
    font-size: var(--text-base);
    line-height: var(--leading-normal);
    color: var(--gray-800);
    background: var(--gray-50);
}

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

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: var(--font-bold);
    line-height: var(--leading-tight);
    color: var(--gray-900);
}

h1 {
    font-size: var(--text-5xl);
    font-weight: var(--font-extrabold);
    letter-spacing: -0.02em;
}

h2 {
    font-size: var(--text-4xl);
    font-weight: var(--font-bold);
}

h3 {
    font-size: var(--text-3xl);
    font-weight: var(--font-bold);
}

h4 {
    font-size: var(--text-2xl);
    font-weight: var(--font-semibold);
}

h5 {
    font-size: var(--text-xl);
    font-weight: var(--font-semibold);
}

h6 {
    font-size: var(--text-lg);
    font-weight: var(--font-medium);
}

/* ============ ANIMATION KEYFRAMES ============ */

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

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

@keyframes spin {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

/* ============ UTILITY CLASSES ============ */

.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

.text-primary {
    color: var(--primary);
}

.text-accent {
    color: var(--accent);
}

.bg-primary {
    background: var(--primary);
}

.bg-accent {
    background: var(--accent);
}

.animate-fadeIn {
    animation: fadeIn 0.6s ease-out;
}

.animate-fadeInUp {
    animation: fadeInUp 0.6s ease-out;
}

.animate-fadeInDown {
    animation: fadeInDown 0.6s ease-out;
}

/* ============ RESPONSIVE BREAKPOINTS ============ */

@media (max-width: 1280px) {
    :root {
        --container-padding: 1.5rem;
    }
}

@media (max-width: 768px) {
    :root {
        --text-5xl: 2.25rem;   /* 36px */
        --text-4xl: 1.875rem;  /* 30px */
        --text-3xl: 1.5rem;    /* 24px */
        --container-padding: 1.25rem;
    }
    
    h1 {
        font-size: var(--text-4xl);
    }
    
    h2 {
        font-size: var(--text-3xl);
    }
}

@media (max-width: 480px) {
    :root {
        --container-padding: 1rem;
    }
}