/* ============================================ */
/* SITI - Custom Clean CSS Stylesheet          */
/* Pure CSS, no framework dependencies         */
/* ============================================ */

/* ============================================ */
/* CSS Variables for Consistent Theming        */
/* ============================================ */
:root {
    /* Primary Colors */
    --blue-50: #EFF6FF;
    --blue-100: #DBEAFE;
    --blue-500: #3B82F6;
    --blue-600: #2563EB;
    --blue-700: #1D4ED8;
    --blue-800: #1E40AF;
    --blue-900: #1E3A8A;
    
    --indigo-100: #E0E7FF;
    --indigo-600: #4F46E5;
    --indigo-700: #4338CA;
    --indigo-800: #3730A3;
    --indigo-900: #312E81;
    
    --green-50: #F0FDF4;
    --green-100: #DCFCE7;
    --green-200: #BBF7D0;
    --green-500: #22C55E;
    --green-600: #16A34A;
    --green-700: #15803D;
    
    --emerald-700: #047857;
    --emerald-800: #065F46;
    --emerald-900: #064E3B;
    
    --teal-500: #14B8A6;
    --teal-600: #0D9488;
    
    --gray-50: #F9FAFB;
    --gray-100: #F3F4F6;
    --gray-200: #E5E7EB;
    --gray-300: #D1D5DB;
    --gray-400: #9CA3AF;
    --gray-600: #4B5563;
    --gray-700: #374151;
    --gray-800: #1F2937;
    --gray-900: #111827;
    
    --red-100: #FEE2E2;
    --red-400: #F87171;
    --red-600: #DC2626;
    --red-700: #991B1B;
    
    --yellow-100: #FEF9C3;
    --yellow-600: #CA8A04;
    --yellow-700: #A16207;
    --yellow-900: #713F12;

    --amber-600: #D97706;
    --amber-700: #B45309;
    --amber-800: #92400E;
    --amber-900: #78350F;
    
    /* Spacing Scale */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-12: 3rem;
    
    /* Font Sizes */
    --text-xs: 0.75rem;
    --text-sm: 0.875rem;
    --text-base: 1rem;
    --text-lg: 1.125rem;
    --text-xl: 1.25rem;
    --text-2xl: 1.5rem;
    --text-4xl: 2.25rem;
    
    /* Font Weights */
    --font-normal: 400;
    --font-semibold: 600;
    --font-bold: 700;
    
    /* Border Radius */
    --rounded: 0.25rem;
    --rounded-lg: 0.5rem;
    --rounded-full: 9999px;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    --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);
}

/* ============================================ */
/* Reset & Base Styles                         */
/* ============================================ */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    color: var(--gray-800);
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
}

/* ============================================ */
/* Layout Components                           */
/* ============================================ */
.container {
    max-width: 1280px;
    margin-left: auto;
    margin-right: auto;
    padding-left: var(--space-4);
    padding-right: var(--space-4);
}

.mx-auto {
    margin-left: auto;
    margin-right: auto;
}

.max-w-4xl {
    max-width: 896px;
}

/* ============================================ */
/* Typography                                  */
/* ============================================ */
h1 {
    font-size: var(--text-4xl);
    font-weight: var(--font-bold);
    color: var(--gray-900);
    margin-bottom: var(--space-4);
}

h2 {
    font-size: var(--text-2xl);
    font-weight: var(--font-bold);
    margin-bottom: var(--space-4);
}

h3 {
    font-size: var(--text-xl);
    font-weight: var(--font-semibold);
    margin-bottom: var(--space-2);
}

p {
    margin-bottom: var(--space-4);
}

.text-lg {
    font-size: var(--text-lg);
    line-height: 1.75;
}

.text-gray-600 {
    color: #4B5563;
}

.text-gray-700 {
    color: #374151;
}

.text-gray-800 {
    color: #1F2937;
}

.text-gray-900 {
    color: var(--gray-900);
}

.text-white {
    color: white;
}

.text-center {
    text-align: center;
}

.font-bold {
    font-weight: var(--font-bold);
}

.font-semibold {
    font-weight: var(--font-semibold);
}

/* ============================================ */
/* Spacing                                     */
/* ============================================ */
.p-3 { padding: var(--space-3); }
.p-4 { padding: var(--space-4); }
.p-5 { padding: var(--space-5); }
.p-6 { padding: var(--space-6); }
.p-8 { padding: var(--space-8); }

.px-4 { 
    padding-left: var(--space-4);
    padding-right: var(--space-4);
}

.py-2 {
    padding-top: var(--space-2);
    padding-bottom: var(--space-2);
}

.py-12 {
    padding-top: var(--space-12);
    padding-bottom: var(--space-12);
}

.mb-2 { margin-bottom: var(--space-2); }
.mb-3 { margin-bottom: var(--space-3); }
.mb-4 { margin-bottom: var(--space-4); }
.mb-6 { margin-bottom: var(--space-6); }
.mb-8 { margin-bottom: var(--space-8); }

.mt-4 { margin-top: var(--space-4); }
.mt-6 { margin-top: var(--space-6); }

.mr-2 { margin-right: var(--space-2); }

/* ============================================ */
/* Backgrounds                                 */
/* ============================================ */
.bg-white {
    background-color: white;
}

.bg-gray-100 {
    background-color: var(--gray-100);
}

.bg-gray-800 {
    background-color: var(--gray-800);
}

.bg-blue-50 {
    background-color: var(--blue-50);
}

.bg-green-50 {
    background-color: var(--green-50);
}

.bg-green-100 {
    background-color: var(--green-100);
}

.bg-red-100 {
    background-color: var(--red-100);
}

.bg-yellow-100 {
    background-color: var(--yellow-100);
}

.bg-gradient-to-br {
    background-image: linear-gradient(to bottom right, var(--blue-50), var(--indigo-100));
}

.bg-gradient-to-r {
    background-image: linear-gradient(to right, var(--tw-gradient-stops));
}

.from-green-500 {
    --tw-gradient-from: #047857; /* Emerald 700 - darker for better contrast */
    --tw-gradient-stops: var(--tw-gradient-from), var(--tw-gradient-to, rgba(4, 120, 87, 0));
}

.to-teal-600 {
    --tw-gradient-to: #0e7490; /* Cyan 700 - deeper teal for better contrast */
}

.from-blue-500 {
    --tw-gradient-from: var(--blue-500);
    --tw-gradient-stops: var(--tw-gradient-from), var(--tw-gradient-to, rgba(59, 130, 246, 0));
}

.to-indigo-600 {
    --tw-gradient-to: var(--indigo-600);
}

.from-blue-50 {
    --tw-gradient-from: var(--blue-50);
    --tw-gradient-stops: var(--tw-gradient-from), var(--tw-gradient-to, rgba(239, 246, 255, 0));
}

.to-indigo-100 {
    --tw-gradient-to: var(--indigo-100);
}

/* ============================================ */
/* Borders & Shadows                           */
/* ============================================ */
.border {
    border-width: 1px;
}

.border-gray-200 {
    border-color: var(--gray-200);
}

.border-gray-300 {
    border-color: var(--gray-300);
}

.border-green-400 {
    border-color: #4ADE80;
}

.border-red-400 {
    border-color: var(--red-400);
}

.rounded {
    border-radius: var(--rounded);
}

.rounded-lg {
    border-radius: var(--rounded-lg);
}

.rounded-full {
    border-radius: var(--rounded-full);
}

.shadow {
    box-shadow: var(--shadow);
}

.shadow-md {
    box-shadow: var(--shadow-md);
}

.shadow-lg {
    box-shadow: var(--shadow-lg);
}

/* ============================================ */
/* Flexbox & Grid                              */
/* ============================================ */
.flex {
    display: flex;
}

.grid {
    display: grid;
}

.items-start {
    align-items: flex-start;
}

.items-center {
    align-items: center;
}

.justify-between {
    justify-content: space-between;
}

.justify-center {
    justify-content: center;
}

.flex-1 {
    flex: 1 1 0%;
}

.flex-shrink-0 {
    flex-shrink: 0;
}

.gap-3 {
    gap: var(--space-3);
}

.gap-6 {
    gap: var(--space-6);
}

.space-y-1 > * + * {
    margin-top: var(--space-1);
}

.space-y-6 > * + * {
    margin-top: var(--space-6);
}

.space-x-2 > * + * {
    margin-left: var(--space-2);
}

.space-x-3 > * + * {
    margin-left: var(--space-3);
}

.space-x-4 > * + * {
    margin-left: var(--space-4);
}

.space-x-6 > * + * {
    margin-left: var(--space-6);
}

/* ============================================ */
/* Positioning                                 */
/* ============================================ */
.absolute {
    position: absolute;
}

.relative {
    position: relative;
}

.top-4 {
    top: var(--space-4);
}

.right-4 {
    right: var(--space-4);
}

.z-50 {
    z-index: 50;
}

/* ============================================ */
/* Sizing                                      */
/* ============================================ */
.w-full {
    width: 100%;
}

.w-12 {
    width: 3rem;
}

.h-12 {
    height: 3rem;
}

.min-h-screen {
    min-height: 100vh;
}

/* ============================================ */
/* Display                                     */
/* ============================================ */
.inline-block {
    display: inline-block;
}

.hidden {
    display: none;
}

/* ============================================ */
/* Interactive Elements                        */
/* ============================================ */
button, .cursor-pointer {
    cursor: pointer;
}

select {
    cursor: pointer;
}

/* ============================================ */
/* Focus States                                */
/* ============================================ */
input:focus,
select:focus,
textarea:focus {
    outline: 2px solid transparent;
    outline-offset: 2px;
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.5);
}

/* ============================================ */
/* Hover Effects                               */
/* ============================================ */
.hover\:bg-green-50:hover {
    background-color: var(--green-50);
}

.hover\:bg-blue-50:hover {
    background-color: var(--blue-50);
}

.hover\:shadow-lg:hover {
    box-shadow: var(--shadow-lg);
}

.transition-colors {
    transition-property: color, background-color, border-color;
    transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
    transition-duration: 150ms;
}

/* ============================================ */
/* Animations                                  */
/* ============================================ */
@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-25%); }
}

.animate-bounce {
    animation: bounce 1s infinite;
}

@keyframes ping {
    75%, 100% {
        transform: scale(2);
        opacity: 0;
    }
}

.animate-ping {
    animation: ping 1s cubic-bezier(0, 0, 0.2, 1) infinite;
}

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

.animate-spin {
    animation: spin 1s linear infinite;
}

/* ============================================ */
/* Component-Specific Styles                   */
/* ============================================ */

/* Welcome Section - High Contrast */
.welcome-section {
    background: linear-gradient(135deg, #059669 0%, #0891b2 100%);
    border-radius: var(--rounded-lg);
    box-shadow: 0 20px 60px rgba(5, 150, 105, 0.3);
    padding: var(--space-6);
    margin-bottom: var(--space-8);
    color: white;
    position: relative;
    overflow: hidden;
}

.welcome-section::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%);
    pointer-events: none;
}

.welcome-section h2,
.welcome-section p,
.welcome-section li {
    position: relative;
    z-index: 1;
}

/* Checkmark items in welcome section */
.welcome-section .checkmark-list li::before {
    color: #FFFFFF; /* Pure white for maximum contrast */
    font-weight: bold;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

/* White info box inside welcome section */
.welcome-info-box {
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: var(--rounded-lg);
    padding: var(--space-4);
    margin-top: var(--space-6);
}

/* Button inside welcome section */
.welcome-section .btn-learn-more {
    display: inline-block;
    background: white;
    color: #059669;
    font-weight: var(--font-bold);
    padding: var(--space-2) var(--space-6);
    border-radius: var(--rounded-lg);
    text-decoration: none;
    transition: all 150ms ease;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.welcome-section .btn-learn-more:hover {
    background: #F0FDF4;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
}

/* Language Selector */
#language-selector {
    background-color: white;
    border: 1px solid var(--gray-300);
    color: var(--gray-700);
    padding: var(--space-2) var(--space-4);
    border-radius: var(--rounded-lg);
    box-shadow: var(--shadow-md);
}

/* Cards */
.card {
    background: white;
    border-radius: var(--rounded-lg);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
    padding: var(--space-6);
    margin-bottom: var(--space-6);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.card:hover {
    box-shadow: 0 15px 50px rgba(0, 0, 0, 0.2);
    transition: box-shadow 150ms ease;
}

/* Buttons Base */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-weight: var(--font-bold);
    padding: var(--space-3) var(--space-8);
    border-radius: var(--rounded-lg);
    text-decoration: none;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
    border: none;
    position: relative;
    overflow: hidden;
    gap: var(--space-2);
    font-size: var(--text-base);
}

/* Premium Primary Button */
.btn-premium {
    background: linear-gradient(135deg, var(--blue-600) 0%, var(--indigo-600) 100%);
    color: white !important;
    box-shadow: 0 4px 15px rgba(37, 99, 235, 0.3);
}

.btn-premium:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(37, 99, 235, 0.4);
    background: linear-gradient(135deg, var(--blue-500) 0%, var(--indigo-600) 100%);
}

.btn-premium:active {
    transform: translateY(0);
}

/* Shimmer Effect for Premium Buttons */
.btn-premium::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(
        to bottom right,
        rgba(255, 255, 255, 0) 0%,
        rgba(255, 255, 255, 0) 40%,
        rgba(255, 255, 255, 0.4) 50%,
        rgba(255, 255, 255, 0) 60%,
        rgba(255, 255, 255, 0) 100%
    );
    transform: rotate(45deg);
    transition: all 0.3s;
    opacity: 0;
}

.btn-premium:hover::after {
    animation: shimmer 1.5s infinite;
    opacity: 1;
}

@keyframes shimmer {
    0% { transform: translate(-100%, -100%) rotate(45deg); }
    100% { transform: translate(100%, 100%) rotate(45deg); }
}

/* Premium Success Button */
.btn-premium-success {
    background: linear-gradient(135deg, #059669 0%, #0d9488 100%);
    color: white !important;
    box-shadow: 0 4px 15px rgba(5, 150, 105, 0.3);
}

.btn-premium-success:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(5, 150, 105, 0.4);
    background: linear-gradient(135deg, #10b981 0%, #0d9488 100%);
}

/* Outline/Secondary Button */
.btn-outline {
    background: transparent;
    color: var(--blue-600);
    border: 2px solid var(--blue-600);
}

.btn-outline:hover {
    background: var(--blue-50);
    transform: translateY(-2px);
}

.btn-white {
    background: white;
    color: var(--blue-600);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.btn-white:hover {
    background: var(--blue-50);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

/* Industry Cards */
.industry-card {
    background: rgba(255, 255, 255, 0.95);
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: var(--rounded-lg);
    padding: var(--space-5);
    transition: all 150ms ease;
}

.industry-card:hover {
    background: white;
    box-shadow: 0 15px 50px rgba(0, 0, 0, 0.2);
    transform: translateY(-2px);
}

/* Step Cards */
.step-card {
    display: flex;
    align-items: flex-start;
    gap: var(--space-4);
    margin-bottom: var(--space-6);
    background: rgba(255, 255, 255, 0.95);
    padding: var(--space-5);
    border-radius: var(--rounded-lg);
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.step-card:hover {
    background: white;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
    transform: translateX(4px);
    transition: all 150ms ease;
}

.step-number {
    flex-shrink: 0;
    width: 3rem;
    height: 3rem;
    background-color: var(--blue-600);
    color: white;
    border-radius: var(--rounded-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: var(--font-bold);
    font-size: var(--text-xl);
}

/* Lists */
ul.checkmark-list {
    list-style: none;
}

ul.checkmark-list li {
    display: flex;
    align-items: flex-start;
    margin-bottom: var(--space-2);
}

ul.checkmark-list li::before {
    content: "✓";
    color: #FFFFFF; /* High contrast white */
    margin-right: var(--space-2);
    font-weight: var(--font-bold);
}

/* Info Boxes */
.info-box {
    background: rgba(59, 130, 246, 0.1);
    border-left: 4px solid var(--blue-600);
    padding: var(--space-4);
    border-radius: var(--rounded);
    margin-bottom: var(--space-4);
}

.code-box {
    background: #111827; /* Gray-900 for maximum contrast */
    color: #F9FAFB;
    padding: var(--space-4);
    border-radius: var(--rounded-lg);
    font-family: 'ui-monospace', 'SFMono-Regular', 'Menlo', 'Monaco', 'Consolas', 'Liberation Mono', 'Courier New', monospace;
    font-size: var(--text-sm);
    overflow-x: auto;
    margin-bottom: var(--space-4);
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
}

/* ============================================ */
/* Chat Widget Styles                            */
/* ============================================ */

/* Fixed position bottom-right */
.fixed.bottom-6.right-6 {
    position: fixed;
    bottom: 1.5rem;
    right: 1.5rem;
}

.z-50 {
    z-index: 50;
}

.bg-blue-600 {
    background-color: #2563EB;
}

.hover\:bg-blue-700:hover {
    background-color: #1D4ED8;
}

.text-white {
    color: #ffffff;
}

.p-4 {
    padding: 1rem;
}

.rounded-full {
    border-radius: 9999px;
}

.shadow-lg {
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

.transition-all {
    transition: all 0.3s ease;
}

.transform {
    transform: scale(1);
}

.hover\:scale-110:hover {
    transform: scale(1.1);
}

/* Pulse animation */
@keyframes ping {
    75%, 100% {
        transform: scale(2);
        opacity: 0;
    }
}

.animate-ping {
    animation: ping 1s cubic-bezier(0, 0, 0.2, 1) infinite;
}

/* Tooltip */
.absolute.right-16 {
    position: absolute;
    right: 4rem;
}

.bg-white {
    background-color: #ffffff;
}

.text-gray-800 {
    color: #1F2937;
}

.font-semibold {
    font-weight: 600;
}

.px-4 {
    padding-left: 1rem;
    padding-right: 1rem;
}

.py-2 {
    padding-top: 0.5rem;
    padding-bottom: 0.5rem;
}

.rounded-lg {
    border-radius: 0.5rem;
}

.shadow-xl {
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

.opacity-0 {
    opacity: 0;
}

.group-hover\:opacity-100:hover {
    opacity: 1;
}

.transition-opacity {
    transition: opacity 0.3s ease;
}

.whitespace-nowrap {
    white-space: nowrap;
}

.pointer-events-none {
    pointer-events: none;
}

.group:hover .group-hover\:opacity-100 {
    opacity: 1;
}

/* Chat widget FAB button hover effects */
button[aria-label="Open chat"]:hover {
    background-color: #1D4ED8 !important;
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04) !important;
    transform: scale(1.1) !important;
}

button[aria-label="Open chat"]:active {
    transform: scale(0.95) !important;
}

/* Ping animation keyframes */
@keyframes ping {
    75%, 100% {
        transform: scale(2);
        opacity: 0;
    }
}

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

/* Bounce animation keyframes */
@keyframes bounce {
    0%, 100% {
        transform: translateY(-25%);
        animation-timing-function: cubic-bezier(0.8, 0, 1, 1);
    }
    50% {
        transform: translateY(0);
        animation-timing-function: cubic-bezier(0, 0, 0.2, 1);
    }
}

/* Chat window positioning */
.fixed.bottom-24.right-6 {
    position: fixed;
    bottom: 6rem;
    right: 1.5rem;
}

.w-96 {
    width: 24rem;
}

.max-w-\[calc\(100vw-3rem\)\] {
    max-width: calc(100vw - 3rem);
}

.h-\[32rem\] {
    height: 32rem;
}

.max-h-\[calc\(100vh-8rem\)\] {
    max-height: calc(100vh - 8rem);
}

.bg-white {
    background-color: #ffffff;
}

.rounded-2xl {
    border-radius: 1rem;
}

.shadow-2xl {
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
}

.flex {
    display: flex;
}

.flex-col {
    flex-direction: column;
}

.overflow-hidden {
    overflow: hidden;
}

.border {
    border-width: 1px;
}

.border-gray-200 {
    border-color: #E5E7EB;
}

.px-5 {
    padding-left: 1.25rem;
    padding-right: 1.25rem;
}

.py-4 {
    padding-top: 1rem;
    padding-bottom: 1rem;
}

.items-center {
    align-items: center;
}

.justify-between {
    justify-content: space-between;
}

.rounded-t-2xl {
    border-top-left-radius: 1rem;
    border-top-right-radius: 1rem;
}

.w-9 {
    width: 2.25rem;
}

.h-9 {
    height: 2.25rem;
}

.text-sm {
    font-size: 0.875rem;
}

.text-xs {
    font-size: 0.75rem;
}

.text-base {
    font-size: 1rem;
}

.font-semibold {
    font-weight: 600;
}

.font-bold {
    font-weight: 700;
}

.text-white\/80 {
    color: rgba(255, 255, 255, 0.8);
}

.hover\:text-white:hover {
    color: #ffffff;
}

.p-1 {
    padding: 0.25rem;
}

.hover\:bg-white\/10:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

.flex-1 {
    flex: 1 1 0%;
}

.overflow-y-auto {
    overflow-y: auto;
}

.p-4 {
    padding: 1rem;
}

.space-y-3 > * + * {
    margin-top: 0.75rem;
}

.max-w-\[80\%\] {
    max-width: 80%;
}

.bg-gray-100 {
    background-color: #F3F4F6;
}

.text-gray-800 {
    color: #1F2937;
}

.px-4 {
    padding-left: 1rem;
    padding-right: 1rem;
}

.py-2\.5 {
    padding-top: 0.625rem;
    padding-bottom: 0.625rem;
}

.rounded-2xl {
    border-radius: 1rem;
}

.rounded-tl-sm {
    border-top-left-radius: 0.125rem;
}

.rounded-tr-sm {
    border-top-right-radius: 0.125rem;
}

.ml-auto {
    margin-left: auto;
}

.border-t {
    border-top-width: 1px;
}

.border-gray-200 {
    border-color: #E5E7EB;
}

.p-3 {
    padding: 0.75rem;
}

.bg-gray-50 {
    background-color: #F9FAFB;
}

.outline-none {
    outline: 2px solid transparent;
    outline-offset: 2px;
}

.focus\:ring-2:focus {
    box-shadow: 0 0 0 2px rgba(37, 99, 235, 0.5);
}

.focus\:ring-blue-500:focus {
    --tw-ring-color: #3B82F6;
}

.disabled\:bg-gray-300:disabled {
    background-color: #D1D5DB;
}

.p-2\.5 {
    padding: 0.625rem;
}

.rounded-xl {
    border-radius: 0.75rem;
}

.duration-200 {
    transition-duration: 200ms;
}

.items-center {
    align-items: center;
}

.justify-center {
    justify-content: center;
}

.h-5 {
    height: 1.25rem;
}

.w-5 {
    width: 1.25rem;
}

.h-7 {
    height: 1.75rem;
}

.w-7 {
    width: 1.75rem;
}

.animate-spin {
    animation: spin 1s linear infinite;
}

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

.border-2 {
    border-width: 2px;
}

.border-white {
    border-color: #ffffff;
}

.border-t-transparent {
    border-top-color: transparent;
}

.text-center {
    text-align: center;
}

.mt-4 {
    margin-top: 1rem;
}

.text-blue-600 {
    color: #2563EB;
}

.hover\:text-blue-800:hover {
    color: #1E40AF;
}

.underline {
    text-decoration-line: underline;
}

.text-gray-400 {
    color: #9CA3AF;
}

.bg-gray-400 {
    background-color: #9CA3AF;
}

.w-2 {
    width: 0.5rem;
}

.h-2 {
    height: 0.5rem;
}

.animate-bounce {
    animation: bounce 1s infinite;
}

@keyframes bounce {
    0%, 100% {
        transform: translateY(-25%);
        animation-timing-function: cubic-bezier(0.8, 0, 1, 1);
    }
    50% {
        transform: translateY(0);
        animation-timing-function: cubic-bezier(0, 0, 0.2, 1);
    }
}

.code-box code {
    color: #E2E8F0;
}

.code-box .comment {
    color: #94A3B8;
    font-style: italic;
}

.duration-box {
    background: rgba(34, 197, 94, 0.1);
    border-left: 4px solid var(--green-600);
    padding: var(--space-3);
    border-radius: var(--rounded);
    margin-bottom: var(--space-4);
}

/* ============================================ */
/* Responsive Design                           */
/* ============================================ */
@media (min-width: 768px) {
    .grid-cols-2 {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
    
    .grid-cols-3 {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }
}

@media (max-width: 767px) {
    .grid-cols-1 {
        grid-template-columns: 1fr;
    }
}

/* ============================================ */
/* Utility Classes                             */
/* ============================================ */
.text-green-200 { color: var(--green-200); }
.text-green-700 { color: var(--green-700); }
.text-blue-600 { color: var(--blue-600); }
.text-blue-700 { color: var(--blue-700); }
.text-red-700 { color: var(--red-700); }
.text-yellow-700 { color: var(--yellow-700); }

.bg-blue-500 { background-color: var(--blue-500); }
.bg-green-500 { background-color: var(--green-500); }

/* High Contrast Button Utilities */
.btn-primary-high {
    background: linear-gradient(135deg, var(--blue-700) 0%, var(--indigo-800) 100%) !important;
    color: white !important;
    font-weight: 700 !important;
    box-shadow: 0 4px 14px 0 rgba(29, 78, 216, 0.5) !important;
    border: 1px solid var(--blue-800) !important;
}

.btn-primary-high:hover {
    background: linear-gradient(135deg, var(--blue-800) 0%, var(--indigo-900) 100%) !important;
    transform: translateY(-1px);
    box-shadow: 0 6px 20px 0 rgba(29, 78, 216, 0.6) !important;
}

.btn-amber-high {
    background: linear-gradient(135deg, var(--amber-600) 0%, var(--amber-800) 100%) !important;
    color: white !important;
    font-weight: 700 !important;
    box-shadow: 0 4px 14px 0 rgba(180, 83, 9, 0.5) !important;
    border: 1px solid var(--amber-700) !important;
}

.btn-amber-high:hover {
    background: linear-gradient(135deg, var(--amber-700) 0%, var(--amber-900) 100%) !important;
    transform: translateY(-1px);
    box-shadow: 0 6px 20px 0 rgba(180, 83, 9, 0.6) !important;
}

.btn-emerald-high {
    background: linear-gradient(135deg, var(--emerald-700) 0%, var(--emerald-900) 100%) !important;
    color: white !important;
    font-weight: 700 !important;
    box-shadow: 0 4px 14px 0 rgba(4, 120, 87, 0.5) !important;
    border: 1px solid var(--emerald-800) !important;
}

.btn-emerald-high:hover {
    background: linear-gradient(135deg, var(--emerald-800) 0%, var(--emerald-900) 100%) !important;
    transform: translateY(-1px);
    box-shadow: 0 6px 20px 0 rgba(4, 120, 87, 0.6) !important;
}

.input-high-contrast {
    background-color: white !important;
    border: 1px solid var(--gray-400) !important;
    color: var(--gray-900) !important;
    box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.05) !important;
}

.input-high-contrast:focus {
    border-color: var(--blue-600) !important;
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.3) !important;
    outline: none !important;
}