/* ==========================================================================
   ibirAi - Clean Professional Styles
   ========================================================================== */

/* Variables
   ========================================================================== */
:root {
    /* Brand Colors - AI Learning Theme */
    --primary: #6366f1;          /* Intelligence Purple - main brand */
    --primary-light: #818cf8;    /* Lighter variant for hover states */
    --primary-dark: #4338ca;     /* Deeper variant for active states */
    
    --accent: #059669;           /* Growth Emerald - success, progress */
    --accent-light: #10b981;     /* Lighter emerald for backgrounds */
    --accent-dark: #047857;      /* Deeper emerald for emphasis */
    
    --energy: #d97706;           /* Motivation Amber - energy, highlights */
    --energy-light: #f59e0b;     /* Lighter amber for warnings */
    --energy-dark: #b45309;      /* Deeper amber for active states */
    
    /* Semantic Colors */
    --success: #059669;          /* Using accent emerald for success */
    --warning: #d97706;          /* Using energy amber for warnings */
    --error: #dc2626;            /* Clean red for errors */
    --info: #6366f1;             /* Using primary purple for info */
    
    /* Modern Neutral Palette */
    --white: #ffffff;
    --gray-50: #fafaf9;          /* Warm white background */
    --gray-100: #f5f5f4;         /* Subtle warm gray */
    --gray-200: #e7e5e4;         /* Light warm gray */
    --gray-300: #d6d3d1;         /* Medium light gray */
    --gray-400: #a8a29e;         /* Medium gray */
    --gray-500: #78716c;         /* Balanced gray */
    --gray-600: #57534e;         /* Medium dark gray */
    --gray-700: #44403c;         /* Dark gray */
    --gray-800: #292524;         /* Very dark gray */
    --gray-900: #1c1917;         /* Near black */
    
    /* Surface Colors */
    --bg-primary: #ffffff;       /* Main background */
    --bg-secondary: #fafaf9;     /* Secondary background */
    --bg-tertiary: #f5f5f4;      /* Tertiary background */
    --bg-accent: #f0fdf4;        /* Success/growth background */
    --bg-energy: #fffbeb;        /* Energy/highlight background */
    
    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    
    /* Spacing */
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-12: 3rem;
    --space-16: 4rem;
    --space-20: 5rem;
    
    /* Modern Shadows */
    --shadow: 0 1px 3px rgba(28, 25, 23, 0.08);
    --shadow-md: 0 4px 6px rgba(28, 25, 23, 0.08);
    --shadow-lg: 0 10px 15px rgba(28, 25, 23, 0.08);
    --shadow-xl: 0 20px 25px rgba(28, 25, 23, 0.1);
    --shadow-colored: 0 4px 20px rgba(99, 102, 241, 0.15);
    --shadow-success: 0 4px 20px rgba(5, 150, 105, 0.15);
    --shadow-energy: 0 4px 20px rgba(217, 119, 6, 0.15);
    
    /* Border Radius */
    --radius: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    
    /* Transitions */
    --transition: 0.2s ease;
}

/* Reset & Base
   ========================================================================== */
*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    font-family: var(--font-primary);
    line-height: 1.6;
    color: var(--gray-800);
    background: var(--white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Layout
   ========================================================================== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-4);
}

@media (min-width: 640px) {
    .container {
        padding: 0 var(--space-6);
    }
}

@media (min-width: 1024px) {
    .container {
        padding: 0 var(--space-8);
    }
}

/* Navigation
   ========================================================================== */
.clean-nav {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--gray-200);
}

.nav-link {
    color: var(--gray-600);
    text-decoration: none;
    font-weight: 500;
    transition: color var(--transition);
}

.nav-link:hover {
    color: var(--primary);
}

/* Cards
   ========================================================================== */
.clean-card {
    background: var(--white);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow);
    border: 1px solid var(--gray-200);
    padding: var(--space-8);
    transition: all var(--transition);
}

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

/* Buttons
   ========================================================================== */
.clean-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-3) var(--space-6);
    border: none;
    border-radius: var(--radius-lg);
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: all var(--transition);
    font-size: 1rem;
}

.clean-btn-primary {
    background: var(--primary) !important;
    color: var(--white) !important;
}

.clean-btn-primary:hover {
    background: var(--primary-dark) !important;
    color: var(--white) !important;
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.clean-btn-secondary {
    background: var(--gray-600) !important;
    color: var(--white) !important;
    border: 1px solid var(--gray-600);
}

.clean-btn-secondary:hover {
    background: var(--gray-700) !important;
    color: var(--white) !important;
    border-color: var(--gray-700);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.clean-btn-accent {
    background: var(--accent) !important;
    color: var(--white) !important;
}

.clean-btn-accent:hover {
    background: var(--accent-dark) !important;
    color: var(--white) !important;
    transform: translateY(-1px);
    box-shadow: var(--shadow-success);
}

.clean-btn-energy {
    background: var(--energy) !important;
    color: var(--white) !important;
}

.clean-btn-energy:hover {
    background: var(--energy-dark) !important;
    color: var(--white) !important;
    transform: translateY(-1px);
    box-shadow: var(--shadow-energy);
}

.clean-btn-outline-accent {
    background: transparent;
    color: var(--accent);
    border: 2px solid var(--accent);
}

.clean-btn-outline-accent:hover {
    background: var(--accent);
    color: var(--white);
}

.clean-btn-yellow {
    background: #fbbf24 !important;
    color: #1f2937 !important;
    border: 2px solid #fbbf24 !important;
}

.clean-btn-yellow:hover {
    background: #f59e0b !important;
    color: #1f2937 !important;
    transform: translateY(-1px);
    box-shadow: 0 4px 20px rgba(251, 191, 36, 0.3);
}

/* Hero-specific button styles */
.clean-btn-hero-outline {
    background: transparent !important;
    color: var(--white) !important;
    border: 2px solid var(--white) !important;
    box-shadow: 0 0 15px rgba(255, 255, 255, 0.3) !important;
    animation: pulse-glow 2s ease-in-out infinite alternate;
}

.clean-btn-hero-outline:hover {
    background: var(--white) !important;
    color: var(--primary) !important;
    transform: translateY(-1px);
    box-shadow: 0 0 25px rgba(255, 255, 255, 0.6) !important;
    animation: none;
}

@keyframes pulse-glow {
    0% {
        box-shadow: 0 0 15px rgba(255, 255, 255, 0.3);
    }
    100% {
        box-shadow: 0 0 20px rgba(255, 255, 255, 0.5);
    }
}

/* Hero
   ========================================================================== */
.clean-hero {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: var(--white);
}

.clean-hero-accent {
    background: linear-gradient(135deg, var(--accent) 0%, var(--accent-dark) 100%);
    color: var(--white);
}

.clean-hero-energy {
    background: linear-gradient(135deg, var(--energy) 0%, var(--energy-dark) 100%);
    color: var(--white);
}

/* Pills
   ========================================================================== */
.clean-pills {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-3);
    justify-content: center;
}

@media (min-width: 1024px) {
    .clean-pills {
        justify-content: flex-start;
    }
}

.clean-pill {
    display: inline-flex;
    align-items: center;
    padding: var(--space-2) var(--space-4);
    background: rgba(255, 255, 255, 0.15);
    border-radius: var(--radius-2xl);
    font-size: 0.875rem;
    font-weight: 500;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.clean-pill i {
    margin-right: var(--space-2);
}

/* Stats
   ========================================================================== */
.clean-stats {
    background: var(--primary);
    color: var(--white);
    border-radius: var(--radius-2xl);
    padding: var(--space-12);
}

/* Phone Mockup
   ========================================================================== */
.phone-mockup {
    background: linear-gradient(135deg, var(--gray-800) 0%, var(--gray-700) 100%);
    border-radius: 25px;
    padding: 8px;
    box-shadow: var(--shadow-xl);
}

/* Animations
   ========================================================================== */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Responsive Design
   ========================================================================== */
@media (max-width: 768px) {
    .clean-pills {
        flex-direction: column;
        align-items: center;
    }
    
    .clean-pill {
        width: fit-content;
    }
}

/* Focus & Accessibility
   ========================================================================== */
.clean-btn:focus,
.nav-link:focus,
input:focus,
textarea:focus {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

/* Reduced Motion
   ========================================================================== */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

/* Dark Mode Support
   ========================================================================== */
@media (prefers-color-scheme: dark) {
    :root {
        --white: var(--gray-900);
        --gray-50: var(--gray-800);
        --gray-100: var(--gray-700);
        --gray-800: var(--gray-100);
        --gray-900: var(--white);
    }
}

/* Print Styles
   ========================================================================== */
@media print {
    .clean-nav,
    .fade-in,
    button {
        display: none !important;
    }
    
    .clean-hero {
        background: var(--gray-800) !important;
        color: var(--white) !important;
    }
}

/* Color Scheme Enforcement
   ========================================================================== */

/* Force correct button colors */
.clean-btn {
    text-decoration: none !important;
}

.clean-btn * {
    color: inherit !important;
}

/* Ensure all buttons have proper contrast */
a.clean-btn-primary,
button.clean-btn-primary {
    background-color: #6366f1 !important;
    color: #ffffff !important;
    border-color: #6366f1 !important;
}

a.clean-btn-secondary, 
button.clean-btn-secondary {
    background-color: #57534e !important;
    color: #ffffff !important;
    border-color: #57534e !important;
}

a.clean-btn-energy,
button.clean-btn-energy {
    background-color: #d97706 !important;
    color: #ffffff !important;
    border-color: #d97706 !important;
}

a.clean-btn-accent,
button.clean-btn-accent {
    background-color: #059669 !important;
    color: #ffffff !important;
    border-color: #059669 !important;
}

a.clean-btn-yellow,
button.clean-btn-yellow {
    background-color: #fbbf24 !important;
    color: #1f2937 !important;
    border-color: #fbbf24 !important;
}

a.clean-btn-orange,
button.clean-btn-orange {
    background-color: #ea580c !important;
    color: #ffffff !important;
    border-color: #ea580c !important;
    transition: all 0.3s ease !important;
}

a.clean-btn-orange:hover,
button.clean-btn-orange:hover {
    background-color: #dc2626 !important;
    border-color: #dc2626 !important;
    color: #ffffff !important;
    transform: translateY(-2px) !important;
    box-shadow: 0 10px 25px rgba(234, 88, 12, 0.3) !important;
}

/* Enhanced Color Theme Utilities
   ========================================================================== */

/* Background Variants */
.bg-primary { background: var(--primary); color: var(--white); }
.bg-accent { background: var(--accent); color: var(--white); }
.bg-energy { background: var(--energy); color: var(--white); }
.bg-success { background: var(--bg-accent); color: var(--accent-dark); }
.bg-energy-light { background: var(--bg-energy); color: var(--energy-dark); }

/* Text Colors */
.text-primary { color: var(--primary) !important; }
.text-accent { color: var(--accent) !important; }
.text-energy { color: var(--energy) !important; }

/* Hover states */
.hover\:text-primary:hover { color: var(--primary) !important; }
.hover\:text-accent:hover { color: var(--accent) !important; }
.hover\:text-energy:hover { color: var(--energy) !important; }

/* Border Variants */
.border-primary { border-color: var(--primary); }
.border-accent { border-color: var(--accent); }
.border-energy { border-color: var(--energy); }

/* Card Enhancements */
.clean-card-accent {
    border-left: 4px solid var(--accent);
    background: var(--bg-accent);
}

.clean-card-energy {
    border-left: 4px solid var(--energy);
    background: var(--bg-energy);
}

.clean-card-primary {
    border-left: 4px solid var(--primary);
    background: var(--bg-secondary);
}

/* Interactive Elements */
.clean-link-accent {
    color: var(--accent);
    text-decoration: none;
    transition: color var(--transition);
}

.clean-link-accent:hover {
    color: var(--accent-dark);
}

.clean-link-energy {
    color: var(--energy);
    text-decoration: none;
    transition: color var(--transition);
}

.clean-link-energy:hover {
    color: var(--energy-dark);
}

/* ==========================================================================
   End of Styles
   ========================================================================== */