/* ============================================
   ULTRA-PREMIUM DESIGN SYSTEM
   Light, Airy, Elegant Theme
   ============================================ */

:root {
    /* ===== PRIMARY COLORS ===== */
    --premium-white: #FFFFFF;
    --premium-off-white: #FAFBFC;
    --premium-light-gray: #F8FAFC;
    --premium-gray-100: #F1F5F9;
    --premium-gray-200: #E2E8F0;
    --premium-gray-300: #CBD5E1;
    --premium-gray-400: #94A3B8;
    --premium-gray-500: #64748B;
    --premium-gray-600: #475569;
    --premium-gray-700: #334155;
    --premium-gray-800: #1E293B;
    --premium-gray-900: #0F172A;

    /* ===== ACCENT COLORS ===== */
    --premium-blue-50: #EFF6FF;
    --premium-blue-100: #DBEAFE;
    --premium-blue-200: #BFDBFE;
    --premium-blue-300: #93C5FD;
    --premium-blue-400: #60A5FA;
    --premium-blue-500: #3B82F6;
    --premium-blue-600: #2563EB;
    --premium-blue-700: #1D4ED8;
    --premium-blue-800: #1E40AF;

    --premium-gold-50: #FFFBEB;
    --premium-gold-100: #FEF3C7;
    --premium-gold-200: #FDE68A;
    --premium-gold-300: #FCD34D;
    --premium-gold-400: #FBBF24;
    --premium-gold-500: #F59E0B;
    --premium-gold-600: #D97706;
    --premium-gold-700: #B45309;

    /* ===== SEMANTIC COLORS ===== */
    --color-bg-primary: var(--premium-white);
    --color-bg-secondary: var(--premium-light-gray);
    --color-bg-tertiary: var(--premium-gray-100);
    --color-bg-elevated: var(--premium-white);

    --color-text-primary: var(--premium-gray-900);
    --color-text-secondary: var(--premium-gray-600);
    --color-text-tertiary: var(--premium-gray-500);
    --color-text-muted: var(--premium-gray-400);

    --color-accent: var(--premium-blue-600);
    --color-accent-hover: var(--premium-blue-700);
    --color-accent-light: var(--premium-blue-100);

    --color-secondary-accent: var(--premium-gold-500);
    --color-secondary-accent-hover: var(--premium-gold-600);

    --color-border: var(--premium-gray-200);
    --color-border-light: var(--premium-gray-100);
    --color-divider: var(--premium-gray-200);

    --color-success: #10B981;
    --color-warning: #F59E0B;
    --color-error: #EF4444;
    --color-info: var(--premium-blue-500);

    /* ===== GLASSMORPHISM ===== */
    --glass-bg: rgba(255, 255, 255, 0.7);
    --glass-bg-light: rgba(255, 255, 255, 0.5);
    --glass-bg-elevated: rgba(255, 255, 255, 0.9);
    --glass-border: rgba(255, 255, 255, 0.3);
    --glass-blur: 20px;
    --glass-blur-heavy: 30px;

    /* ===== GRADIENTS ===== */
    --gradient-primary: linear-gradient(135deg, #3B82F6 0%, #2563EB 100%);
    --gradient-secondary: linear-gradient(135deg, #F59E0B 0%, #D97706 100%);
    --gradient-light: linear-gradient(180deg, #FFFFFF 0%, #F8FAFC 100%);
    --gradient-subtle: linear-gradient(135deg, #EFF6FF 0%, #FAFBFC 100%);
    --gradient-surface: linear-gradient(180deg, #FAFBFC 0%, #FFFFFF 50%, #F8FAFC 100%);
    --gradient-premium: linear-gradient(135deg, #3B82F6 0%, #8B5CF6 50%, #EC4899 100%);

    /* ===== SHADOWS ===== */
    --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.03);
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.12);
    --shadow-xl: 0 20px 60px rgba(0, 0, 0, 0.15);
    --shadow-2xl: 0 30px 80px rgba(0, 0, 0, 0.18);

    /* Premium colored shadows */
    --shadow-blue: 0 8px 30px rgba(59, 130, 246, 0.15);
    --shadow-gold: 0 8px 30px rgba(245, 158, 11, 0.15);

    /* ===== SPACING ===== */
    --spacing-1: 8px;
    --spacing-2: 16px;
    --spacing-3: 24px;
    --spacing-4: 32px;
    --spacing-5: 40px;
    --spacing-6: 48px;
    --spacing-7: 56px;
    --spacing-8: 64px;

    /* ===== BORDER RADIUS ===== */
    --radius-xs: 4px;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-2xl: 32px;
    --radius-full: 9999px;

    /* ===== TYPOGRAPHY ===== */
    --font-family-base: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-family-display: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-family-mono: 'Fira Code', 'Courier New', monospace;

    --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-size-7xl: 4.5rem;
    /* 72px */

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

    --line-height-tight: 1.25;
    --line-height-snug: 1.375;
    --line-height-normal: 1.5;
    --line-height-relaxed: 1.625;
    --line-height-loose: 2;

    /* ===== TRANSITIONS ===== */
    --transition-faster: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-fast: 200ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 300ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-elastic: 600ms cubic-bezier(0.68, -0.55, 0.265, 1.55);

    /* ===== Z-INDEX LAYERS ===== */
    --z-base: 1;
    --z-dropdown: 100;
    --z-sticky: 200;
    --z-overlay: 500;
    --z-modal: 1000;
    --z-toast: 2000;
    --z-tooltip: 3000;

    /* ===== EFFECTS ===== */
    --blur-sm: blur(4px);
    --blur-md: blur(12px);
    --blur-lg: blur(20px);
    --blur-xl: blur(30px);
}

/* ===== DARK MODE OVERRIDE (if needed) ===== */
[data-theme="dark"] {
    /* For now, keep light theme only as requested */
    /* Can be implemented later if needed */
}

/* ===== GLOBAL RESETS WITH PREMIUM STYLING ===== */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

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

body {
    font-family: var(--font-family-base);
    background: var(--color-bg-primary);
    color: var(--color-text-primary);
    line-height: var(--line-height-normal);
    transition: background-color var(--transition-base), color var(--transition-base);
}

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

/* Glassmorphism */
.glass {
    background: var(--glass-bg);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border: 1px solid var(--glass-border);
}

.glass-light {
    background: var(--glass-bg-light);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
}

.glass-elevated {
    background: var(--glass-bg-elevated);
    backdrop-filter: blur(var(--glass-blur-heavy));
    -webkit-backdrop-filter: blur(var(--glass-blur-heavy));
    border: 1px solid var(--glass-border);
}

/* Premium Cards */
.card-premium {
    background: var(--color-bg-elevated);
    border-radius: var(--radius-lg);
    padding: var(--spacing-4);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
    border: 1px solid var(--color-border-light);
}

.card-premium:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

/* Premium Buttons */
.btn-premium-primary {
    background: var(--gradient-primary);
    color: white;
    border: none;
    border-radius: var(--radius-full);
    padding: 1rem 2rem;
    font-weight: var(--font-weight-semibold);
    box-shadow: var(--shadow-blue);
    transition: all var(--transition-base);
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-premium-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-premium-secondary {
    background: white;
    color: var(--color-accent);
    border: 2px solid var(--color-accent);
    border-radius: var(--radius-full);
    padding: 1rem 2rem;
    font-weight: var(--font-weight-semibold);
    transition: all var(--transition-base);
    cursor: pointer;
}

.btn-premium-secondary:hover {
    background: var(--color-accent-light);
}

/* Premium Text Gradients */
.text-gradient-premium {
    background: var(--gradient-premium);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Smooth Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

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

@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

@keyframes float {

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

    50% {
        transform: translateY(-10px);
    }
}

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

.animate-float {
    animation: float 3s ease-in-out infinite;
}