/* ================================
   BUDAPEST BUDGET TRACKER - 2025 REDESIGN
   Project Revolution - Designer #1 & Rio
   ================================ */

/* ================================
   DESIGN TOKENS - Color System 2025
   ================================ */
:root {
    /* Primary Colors - Money & Success */
    --color-primary-50: #ecfdf5;
    --color-primary-100: #d1fae5;
    --color-primary-500: #10b981;
    --color-primary-600: #059669;
    --color-primary-700: #047857;
    
    /* Accent Colors - Interactive Elements */
    --color-accent-50: #faf5ff;
    --color-accent-100: #f3e8ff;
    --color-accent-500: #8b5cf6;
    --color-accent-600: #7c3aed;
    --color-accent-700: #6d28d9;
    
    /* Danger Colors - Delete & Warnings */
    --color-danger-50: #fef2f2;
    --color-danger-100: #fee2e2;
    --color-danger-500: #ef4444;
    --color-danger-600: #dc2626;
    --color-danger-700: #b91c1c;
    
    /* Info Colors - Neutral Actions */
    --color-info-50: #f0f9ff;
    --color-info-100: #e0f2fe;
    --color-info-500: #06b6d4;
    --color-info-600: #0891b2;
    --color-info-700: #0e7490;
    
    /* Warning Colors - Budget Alerts */
    --color-warning-50: #fffbeb;
    --color-warning-100: #fef3c7;
    --color-warning-500: #f59e0b;
    --color-warning-600: #d97706;
    --color-warning-700: #b45309;
    
    /* Neutral Colors - Text & Backgrounds */
    --color-neutral-50: #f9fafb;
    --color-neutral-100: #f3f4f6;
    --color-neutral-200: #e5e7eb;
    --color-neutral-300: #d1d5db;
    --color-neutral-400: #9ca3af;
    --color-neutral-500: #6b7280;
    --color-neutral-600: #4b5563;
    --color-neutral-700: #374151;
    --color-neutral-800: #1f2937;
    --color-neutral-900: #111827;
    
    /* Background Gradients */
    --bg-gradient-primary: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
    --bg-gradient-card: linear-gradient(135deg, #ffffff 0%, #fafbfc 100%);
    --bg-gradient-success: linear-gradient(135deg, #10b981 0%, #059669 100%);
    --bg-gradient-accent: linear-gradient(135deg, #8b5cf6 0%, #7c3aed 100%);
    
    /* Glass Morphism */
    --glass-bg: rgba(255, 255, 255, 0.7);
    --glass-border: rgba(255, 255, 255, 0.3);
    --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    
    /* Typography Scale */
    --font-size-xs: 12px;
    --font-size-sm: 14px;
    --font-size-base: 16px;
    --font-size-lg: 18px;
    --font-size-xl: 20px;
    --font-size-2xl: 24px;
    --font-size-3xl: 30px;
    --font-size-4xl: 36px;
    --font-size-5xl: 48px;
    
    /* Font Weights */
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    --font-weight-extrabold: 800;
    
    /* Spacing Scale */
    --space-1: 4px;
    --space-2: 8px;
    --space-3: 12px;
    --space-4: 16px;
    --space-5: 20px;
    --space-6: 24px;
    --space-8: 32px;
    --space-10: 40px;
    --space-12: 48px;
    --space-16: 64px;
    
    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    --radius-2xl: 24px;
    --radius-full: 9999px;
    
    /* Shadows - Modern & Subtle */
    --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 12px 24px rgba(0, 0, 0, 0.12);
    --shadow-2xl: 0 20px 40px rgba(0, 0, 0, 0.15);
    
    /* Transitions */
    --transition-fast: 150ms 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-bounce: 600ms cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* ================================
   BASE STYLES - Reset & Fundamentals
   ================================ */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Heebo', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--bg-gradient-primary);
    min-height: 100vh;
    padding: var(--space-5);
    direction: rtl;
    color: var(--color-neutral-800);
    font-size: var(--font-size-base);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
}

/* ================================
   VISUAL ORDER CONTROL
   ================================ */
.daily-budget-settings {
    order: 1;
}

.add-expense-section {
    order: 2; /* הוסף הוצאה - שני! */
}

.summary-cards {
    order: 3;
}

.budget-alert {
    order: 4;
}

.budget-overview {
    order: 5;
}

.charts-section {
    order: 6;
}

.expenses-section {
    order: 7;
}

/* ================================
   HEADER - Modern & Clean
   ================================ */
header {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-2xl);
    padding: var(--space-6) var(--space-8);
    margin-bottom: var(--space-6);
    box-shadow: var(--shadow-lg);
    transition: transform var(--transition-base);
}

header:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--space-5);
}

.header-title {
    display: flex;
    align-items: center;
    gap: var(--space-4);
}

.header-title i {
    font-size: var(--font-size-4xl);
    background: var(--bg-gradient-success);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.header-title h1 {
    font-size: var(--font-size-3xl);
    color: var(--color-neutral-900);
    font-weight: var(--font-weight-bold);
    letter-spacing: -0.5px;
}

.header-actions {
    display: flex;
    gap: var(--space-3);
}

/* ================================
   BUTTONS - 2025 Modern Style
   ================================ */
.btn {
    padding: var(--space-3) var(--space-6);
    border: none;
    border-radius: var(--radius-lg);
    font-family: 'Heebo', sans-serif;
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    cursor: pointer;
    transition: all var(--transition-base);
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width var(--transition-bounce), height var(--transition-bounce);
}

.btn:active::before {
    width: 300px;
    height: 300px;
}

.btn-export {
    background: var(--bg-gradient-success);
    color: white;
    box-shadow: var(--shadow-md);
}

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

.btn-clear {
    background: var(--color-danger-50);
    color: var(--color-danger-600);
    border: 2px solid var(--color-danger-100);
}

.btn-clear:hover {
    background: var(--color-danger-500);
    color: white;
    border-color: var(--color-danger-500);
    transform: translateY(-2px);
}

/* ================================
   SUMMARY CARDS - Glass Morphism
   ================================ */
.summary-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-5);
    margin-bottom: var(--space-6);
}

.summary-card {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    padding: var(--space-6);
    display: flex;
    align-items: center;
    gap: var(--space-5);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.summary-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--bg-gradient-success);
    transform: scaleX(0);
    transition: transform var(--transition-base);
    transform-origin: right;
}

.summary-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.summary-card:hover::before {
    transform: scaleX(1);
    transform-origin: left;
}

.card-icon {
    width: 70px;
    height: 70px;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-3xl);
    color: white;
    flex-shrink: 0;
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-base);
}

.summary-card:hover .card-icon {
    transform: scale(1.1) rotate(5deg);
}

.card-content {
    flex: 1;
}

.card-label {
    font-size: var(--font-size-sm);
    color: #1f2937 !important;
    margin-bottom: var(--space-2);
    font-weight: var(--font-weight-semibold);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.card-value {
    font-size: var(--font-size-3xl);
    font-weight: var(--font-weight-bold);
    color: #111827 !important;
    line-height: 1;
}

/* Category-specific icon backgrounds */
.card-icon.total-expenses {
    background: var(--bg-gradient-success);
}

.card-icon.daily-budget {
    background: var(--bg-gradient-accent);
}

.card-icon.today-expenses {
    background: linear-gradient(135deg, #06b6d4 0%, #0891b2 100%);
}

.card-icon.daily-average {
    background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
}

/* ================================
   BUDGET ALERT - Attention Grabber
   ================================ */
.budget-alert {
    background: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
    color: white;
    padding: var(--space-5) var(--space-6);
    border-radius: var(--radius-xl);
    margin-bottom: var(--space-6);
    display: flex;
    align-items: center;
    gap: var(--space-4);
    font-weight: var(--font-weight-semibold);
    font-size: var(--font-size-lg);
    box-shadow: var(--shadow-lg), 0 0 0 4px rgba(239, 68, 68, 0.1);
    animation: alert-pulse 2s ease-in-out infinite;
}

@keyframes alert-pulse {
    0%, 100% {
        transform: scale(1);
        box-shadow: var(--shadow-lg), 0 0 0 4px rgba(239, 68, 68, 0.1);
    }
    50% {
        transform: scale(1.02);
        box-shadow: var(--shadow-xl), 0 0 0 8px rgba(239, 68, 68, 0.2);
    }
}

.budget-alert i {
    font-size: var(--font-size-3xl);
    animation: shake 0.5s ease-in-out infinite;
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-5px); }
    75% { transform: translateX(5px); }
}