/* Enhanced Brand Color System - Anti To-Do List */
/* Cohesive color palette for mental wellness boundary-setting app */

:root {
    /* === BRAND IDENTITY COLORS === */
    
    /* Primary Brand Colors - Calming yet empowering */
    --brand-primary: #667eea;          /* Serene purple-blue - main brand */
    --brand-primary-light: #8b9aed;    /* Lighter variant */
    --brand-primary-dark: #4c63d2;     /* Darker variant */
    
    /* Secondary Brand Colors - Supportive palette */
    --brand-secondary: #8B5CF6;        /* Confident purple */
    --brand-accent: #10B981;           /* Success green - for achievements */
    --brand-wisdom: #F59E0B;           /* Warm amber - for insights */
    --brand-peace: #3B82F6;            /* Peaceful blue - for calm states */
    
    /* === FUNCTIONAL COLOR SYSTEM === */
    
    /* Background Hierarchy - Dark theme for reduced eye strain */
    --bg-app: #0B0F1A;                 /* Main app background - deeper */
    --bg-surface-primary: #1A1F2E;     /* Primary cards/surfaces */
    --bg-surface-secondary: #252A3A;   /* Secondary surfaces */
    --bg-surface-tertiary: #2F3441;    /* Elevated elements */
    --bg-overlay: rgba(11, 15, 26, 0.9); /* Modal overlays */
    
    /* Text Hierarchy - Optimized readability */
    --text-primary: #F8FAFC;           /* High contrast headings */
    --text-secondary: #E2E8F0;         /* Body text */
    --text-tertiary: #CBD5E1;          /* Subtle text */
    --text-muted: #94A3B8;             /* Disabled/meta text */
    --text-brand: var(--brand-primary); /* Brand color text */
    
    /* Interactive Elements */
    --interactive-primary: var(--brand-primary);
    --interactive-primary-hover: var(--brand-primary-light);
    --interactive-primary-active: var(--brand-primary-dark);
    
    --interactive-secondary: var(--bg-surface-secondary);
    --interactive-secondary-hover: var(--bg-surface-tertiary);
    --interactive-secondary-active: var(--bg-surface-primary);
    
    /* Border System */
    --border-primary: rgba(248, 250, 252, 0.1);    /* Subtle borders */
    --border-secondary: rgba(248, 250, 252, 0.06);  /* Very subtle */
    --border-accent: var(--brand-primary);           /* Highlighted borders */
    --border-focus: var(--brand-primary-light);     /* Focus states */
    
    /* Status Colors - Aligned with mental wellness */
    --status-success: #10B981;         /* Achievements, positive actions */
    --status-warning: #F59E0B;         /* Gentle nudges, insights */
    --status-info: #3B82F6;            /* Informational content */
    --status-danger: #EF4444;          /* Critical actions only */
    
    /* Semantic Colors for Boundary Setting */
    --boundary-set: var(--status-success);      /* When boundary is set */
    --boundary-pending: var(--status-warning);  /* Consideration needed */
    --boundary-challenge: var(--brand-primary); /* Challenge presented */
    --boundary-wisdom: var(--brand-wisdom);     /* AI insights */
    
    /* === COMPONENT SPECIFIC COLORS === */
    
    /* Buttons */
    --btn-primary-bg: var(--brand-primary);
    --btn-primary-text: #FFFFFF;
    --btn-primary-hover-bg: var(--brand-primary-light);
    --btn-primary-active-bg: var(--brand-primary-dark);
    
    --btn-secondary-bg: transparent;
    --btn-secondary-text: var(--brand-primary);
    --btn-secondary-border: var(--brand-primary);
    --btn-secondary-hover-bg: rgba(102, 126, 234, 0.1);
    
    --btn-ghost-bg: transparent;
    --btn-ghost-text: var(--text-secondary);
    --btn-ghost-hover-bg: var(--bg-surface-tertiary);
    
    /* Cards and Surfaces */
    --card-bg: var(--bg-surface-primary);
    --card-border: var(--border-secondary);
    --card-shadow: 0 4px 12px rgba(11, 15, 26, 0.3);
    --card-hover-shadow: 0 8px 24px rgba(102, 126, 234, 0.15);
    
    /* Navigation */
    --nav-bg: var(--bg-surface-primary);
    --nav-border: var(--border-primary);
    --nav-item-hover: var(--bg-surface-tertiary);
    --nav-item-active: var(--brand-primary);
    
    /* Forms */
    --form-input-bg: var(--bg-surface-secondary);
    --form-input-border: var(--border-primary);
    --form-input-focus-border: var(--border-focus);
    --form-input-text: var(--text-secondary);
    --form-label-text: var(--text-tertiary);
    
    /* Progress and Stats */
    --progress-bg: var(--bg-surface-tertiary);
    --progress-fill: var(--brand-primary);
    --streak-color: var(--status-success);
    --achievement-color: var(--brand-wisdom);
    
    /* === ENHANCED GRADIENTS === */
    
    /* Brand Gradients */
    --gradient-primary: linear-gradient(135deg, var(--brand-primary) 0%, var(--brand-secondary) 100%);
    --gradient-success: linear-gradient(135deg, var(--status-success) 0%, #34D399 100%);
    --gradient-wisdom: linear-gradient(135deg, var(--brand-wisdom) 0%, #FBBF24 100%);
    --gradient-surface: linear-gradient(145deg, var(--bg-surface-primary) 0%, var(--bg-surface-secondary) 100%);
    
    /* === SHADOWS AND DEPTH === */
    
    --shadow-sm: 0 2px 4px rgba(11, 15, 26, 0.1);
    --shadow-md: 0 4px 12px rgba(11, 15, 26, 0.2);
    --shadow-lg: 0 8px 24px rgba(11, 15, 26, 0.3);
    --shadow-xl: 0 16px 32px rgba(11, 15, 26, 0.4);
    
    --shadow-brand: 0 8px 24px rgba(102, 126, 234, 0.2);
    --shadow-success: 0 8px 24px rgba(16, 185, 129, 0.2);
    
    /* === RESPONSIVE OPACITY === */
    
    --opacity-disabled: 0.4;
    --opacity-hover: 0.8;
    --opacity-pressed: 0.9;
    --opacity-overlay: 0.95;
}

/* === COMPONENT IMPLEMENTATIONS === */

/* Enhanced Button System */
.btn-primary {
    background: var(--btn-primary-bg);
    color: var(--btn-primary-text);
    border: none;
    box-shadow: var(--shadow-brand);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

.btn-primary:active {
    background: var(--btn-primary-active-bg);
    transform: translateY(0);
}

.btn-secondary {
    background: var(--btn-secondary-bg);
    color: var(--btn-secondary-text);
    border: 2px solid var(--btn-secondary-border);
    transition: all 0.3s ease;
}

.btn-secondary:hover {
    background: var(--btn-secondary-hover-bg);
    color: var(--btn-primary-text);
    border-color: var(--brand-primary-light);
}

.btn-ghost {
    background: var(--btn-ghost-bg);
    color: var(--btn-ghost-text);
    border: 1px solid transparent;
    transition: all 0.3s ease;
}

.btn-ghost:hover {
    background: var(--btn-ghost-hover-bg);
    color: var(--text-primary);
}

/* Enhanced Card System */
.card-enhanced {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 1rem;
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
}

.card-enhanced:hover {
    box-shadow: var(--card-hover-shadow);
    transform: translateY(-4px);
    border-color: var(--border-accent);
}

/* Enhanced Typography */
.heading-primary {
    color: var(--text-primary);
    font-weight: 600;
    line-height: 1.2;
}

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

.text-success {
    color: var(--status-success);
}

.text-wisdom {
    color: var(--brand-wisdom);
}

/* Enhanced Navigation */
.nav-enhanced {
    background: var(--nav-bg);
    border-bottom: 1px solid var(--nav-border);
    backdrop-filter: blur(12px);
}

.nav-item-enhanced {
    color: var(--text-secondary);
    transition: all 0.3s ease;
    border-radius: 0.5rem;
    padding: 0.5rem 0.75rem;
}

.nav-item-enhanced:hover {
    background: var(--nav-item-hover);
    color: var(--text-primary);
}

.nav-item-enhanced.active {
    background: var(--gradient-primary);
    color: var(--btn-primary-text);
}

/* Enhanced Form Elements */
.form-control-enhanced {
    background: var(--form-input-bg);
    border: 1px solid var(--form-input-border);
    color: var(--form-input-text);
    border-radius: 0.75rem;
    transition: all 0.3s ease;
}

.form-control-enhanced:focus {
    border-color: var(--form-input-focus-border);
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
    outline: none;
}

.form-label-enhanced {
    color: var(--form-label-text);
    font-weight: 500;
}

/* Progress Indicators */
.progress-enhanced {
    background: var(--progress-bg);
    border-radius: 1rem;
    overflow: hidden;
}

.progress-bar-enhanced {
    background: var(--gradient-primary);
    transition: width 0.6s ease;
}

/* Status Indicators */
.status-success {
    color: var(--status-success);
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid rgba(16, 185, 129, 0.2);
}

.status-warning {
    color: var(--status-warning);
    background: rgba(245, 158, 11, 0.1);
    border: 1px solid rgba(245, 158, 11, 0.2);
}

.status-info {
    color: var(--status-info);
    background: rgba(59, 130, 246, 0.1);
    border: 1px solid rgba(59, 130, 246, 0.2);
}

/* Responsive Design Adjustments */
@media (max-width: 768px) {
    :root {
        --card-shadow: 0 2px 8px rgba(11, 15, 26, 0.2);
        --shadow-brand: 0 4px 16px rgba(102, 126, 234, 0.15);
    }
}

/* Dark Theme Optimizations */
@media (prefers-color-scheme: dark) {
    :root {
        --bg-app: #0B0F1A;
        --text-primary: #F8FAFC;
    }
}

/* High Contrast Mode */
@media (prefers-contrast: high) {
    :root {
        --text-primary: #FFFFFF;
        --border-primary: rgba(255, 255, 255, 0.2);
        --brand-primary: #8b9aed;
    }
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
    .btn-primary:hover,
    .card-enhanced:hover,
    .nav-item-enhanced {
        transform: none;
        transition: background-color 0.3s ease, color 0.3s ease;
    }
}