/**
 * CloudUI Theme - Main Stylesheet
 * Modern Cloud Service Management Interface
 * Author: CloudUI Theme
 * Version: 1.0.0
 */

/* ============================================
   CSS Variables System
   ============================================ */
:root {
    /* Primary Colors */
    --primary-color: #FF6A00;
    --primary-light: #FF8533;
    --primary-dark: #CC5500;
    --secondary-color: #0070CC;
    --secondary-light: #3399FF;
    --secondary-dark: #005099;

    /* Neutral Colors */
    --sidebar-bg: #001529;
    --sidebar-text: #ffffff;
    --sidebar-hover: #1890ff;
    --body-bg: #f0f2f5;
    --white: #ffffff;
    --black: #000000;
    --gray-50: #fafafa;
    --gray-100: #f5f5f5;
    --gray-200: #eeeeee;
    --gray-300: #e0e0e0;
    --gray-400: #bdbdbd;
    --gray-500: #9e9e9e;
    --gray-600: #757575;
    --gray-700: #616161;
    --gray-800: #424242;
    --gray-900: #212121;

    /* Semantic Colors */
    --success: #52c41a;
    --success-light: #73d13d;
    --success-dark: #389e0d;
    --warning: #faad14;
    --warning-light: #ffc53d;
    --warning-dark: #d48806;
    --error: #f5222d;
    --error-light: #ff4d4f;
    --error-dark: #cf1322;
    --info: #1890ff;
    --info-light: #40a9ff;
    --info-dark: #096dd9;

    /* Typography */
    --font-family-base: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue', sans-serif;
    --font-family-mono: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, Courier, monospace;
    --font-size-base: 14px;
    --font-size-sm: 12px;
    --font-size-lg: 16px;
    --font-size-xl: 18px;
    --font-size-xxl: 24px;
    --line-height-base: 1.5;
    --line-height-tight: 1.2;
    --line-height-loose: 1.8;

    /* Spacing */
    --space-xs: 4px;
    --space-sm: 8px;
    --space-md: 12px;
    --space-lg: 16px;
    --space-xl: 24px;
    --space-xxl: 32px;
    --space-xxxl: 48px;

    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-base: 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);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);

    /* Layout */
    --sidebar-width: 240px;
    --sidebar-collapsed-width: 64px;
    --navbar-height: 64px;
    --content-max-width: 1400px;

    /* Transitions */
    --transition-fast: 150ms ease-in-out;
    --transition-base: 250ms ease-in-out;
    --transition-slow: 350ms ease-in-out;

    /* Z-index */
    --z-dropdown: 1000;
    --z-sticky: 1020;
    --z-fixed: 1030;
    --z-modal-backdrop: 1040;
    --z-modal: 1050;
    --z-popover: 1060;
    --z-tooltip: 1070;
}

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

html {
    font-size: var(--font-size-base);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-family-base);
    font-size: var(--font-size-base);
    line-height: var(--line-height-base);
    color: var(--gray-900);
    background-color: var(--body-bg);
    overflow-x: hidden;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: var(--line-height-tight);
    color: var(--gray-900);
    margin-bottom: var(--space-lg);
}

h1 { font-size: var(--font-size-xxl); }
h2 { font-size: var(--font-size-xl); }
h3 { font-size: var(--font-size-lg); }
h4 { font-size: var(--font-size-base); }
h5 { font-size: var(--font-size-sm); }
h6 { font-size: var(--font-size-sm); }

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

a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--primary-dark);
    text-decoration: none;
}

a:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* Lists */
ul, ol {
    padding-left: var(--space-xl);
    margin-bottom: var(--space-lg);
}

/* ============================================
   Layout System
   ============================================ */
.cloudui-layout {
    display: flex;
    min-height: 100vh;
    background-color: var(--body-bg);
}

.cloudui-layout.sidebar-collapsed .cloudui-sidebar {
    width: var(--sidebar-collapsed-width);
}

.cloudui-layout.sidebar-collapsed .cloudui-main {
    margin-left: var(--sidebar-collapsed-width);
}

.cloudui-main {
    flex: 1;
    margin-left: var(--sidebar-width);
    display: flex;
    flex-direction: column;
    transition: margin-left var(--transition-base);
}

.cloudui-content {
    flex: 1;
    padding: var(--space-xl);
    max-width: var(--content-max-width);
    width: 100%;
    margin: 0 auto;
}

/* ============================================
   Card System
   ============================================ */
.cloudui-card {
    background: var(--white);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-base);
    margin-bottom: var(--space-xl);
    transition: box-shadow var(--transition-fast);
}

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

.cloudui-card-header {
    padding: var(--space-lg) var(--space-xl);
    border-bottom: 1px solid var(--gray-200);
}

.cloudui-card-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--gray-900);
    margin: 0;
}

.cloudui-card-subtitle {
    font-size: var(--font-size-sm);
    color: var(--gray-600);
    margin-top: var(--space-xs);
}

.cloudui-card-body {
    padding: var(--space-xl);
}

.cloudui-card-footer {
    padding: var(--space-lg) var(--space-xl);
    border-top: 1px solid var(--gray-200);
    background-color: var(--gray-50);
    border-radius: 0 0 var(--radius-md) var(--radius-md);
}

/* Card Variants */
.cloudui-card.card-bordered {
    border: 1px solid var(--gray-200);
    box-shadow: none;
}

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

/* ============================================
   Grid System
   ============================================ */
.cloudui-grid {
    display: grid;
    gap: var(--space-xl);
}

.cloudui-grid.grid-cols-1 { grid-template-columns: repeat(1, 1fr); }
.cloudui-grid.grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
.cloudui-grid.grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
.cloudui-grid.grid-cols-4 { grid-template-columns: repeat(4, 1fr); }
.cloudui-grid.grid-cols-5 { grid-template-columns: repeat(5, 1fr); }
.cloudui-grid.grid-cols-6 { grid-template-columns: repeat(6, 1fr); }

/* ============================================
   Utility Classes
   ============================================ */
/* Spacing */
.m-0 { margin: 0 !important; }
.mt-0 { margin-top: 0 !important; }
.mr-0 { margin-right: 0 !important; }
.mb-0 { margin-bottom: 0 !important; }
.ml-0 { margin-left: 0 !important; }

.m-xs { margin: var(--space-xs) !important; }
.m-sm { margin: var(--space-sm) !important; }
.m-md { margin: var(--space-md) !important; }
.m-lg { margin: var(--space-lg) !important; }
.m-xl { margin: var(--space-xl) !important; }

.p-0 { padding: 0 !important; }
.p-xs { padding: var(--space-xs) !important; }
.p-sm { padding: var(--space-sm) !important; }
.p-md { padding: var(--space-md) !important; }
.p-lg { padding: var(--space-lg) !important; }
.p-xl { padding: var(--space-xl) !important; }

/* Text */
.text-left { text-align: left !important; }
.text-center { text-align: center !important; }
.text-right { text-align: right !important; }

.text-primary { color: var(--primary-color) !important; }
.text-secondary { color: var(--secondary-color) !important; }
.text-success { color: var(--success) !important; }
.text-warning { color: var(--warning) !important; }
.text-error { color: var(--error) !important; }
.text-info { color: var(--info) !important; }
.text-muted { color: var(--gray-600) !important; }

.font-bold { font-weight: 600 !important; }
.font-normal { font-weight: 400 !important; }
.font-light { font-weight: 300 !important; }

/* Display */
.d-none { display: none !important; }
.d-block { display: block !important; }
.d-inline { display: inline !important; }
.d-inline-block { display: inline-block !important; }
.d-flex { display: flex !important; }

/* Flex */
.flex-row { flex-direction: row !important; }
.flex-column { flex-direction: column !important; }
.flex-wrap { flex-wrap: wrap !important; }
.justify-start { justify-content: flex-start !important; }
.justify-center { justify-content: center !important; }
.justify-end { justify-content: flex-end !important; }
.justify-between { justify-content: space-between !important; }
.align-start { align-items: flex-start !important; }
.align-center { align-items: center !important; }
.align-end { align-items: flex-end !important; }

/* Backgrounds */
.bg-primary { background-color: var(--primary-color) !important; }
.bg-secondary { background-color: var(--secondary-color) !important; }
.bg-success { background-color: var(--success) !important; }
.bg-warning { background-color: var(--warning) !important; }
.bg-error { background-color: var(--error) !important; }
.bg-info { background-color: var(--info) !important; }
.bg-white { background-color: var(--white) !important; }
.bg-gray { background-color: var(--gray-100) !important; }

/* ============================================
   Animations
   ============================================ */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slideInRight {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

@keyframes slideInLeft {
    from {
        transform: translateX(-100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

@keyframes slideInUp {
    from {
        transform: translateY(20px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

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

.animate-fadeIn { animation: fadeIn var(--transition-base); }
.animate-slideInRight { animation: slideInRight var(--transition-base); }
.animate-slideInLeft { animation: slideInLeft var(--transition-base); }
.animate-slideInUp { animation: slideInUp var(--transition-base); }
.animate-spin { animation: spin 1s linear infinite; }

/* ============================================
   Responsive Design
   ============================================ */
@media (max-width: 1200px) {
    :root {
        --content-max-width: 100%;
    }
}

@media (max-width: 992px) {
    .cloudui-grid.grid-cols-4,
    .cloudui-grid.grid-cols-3 {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    :root {
        --font-size-base: 13px;
        --space-xl: 16px;
        --space-xxl: 24px;
    }

    .cloudui-layout {
        flex-direction: column;
    }

    .cloudui-main {
        margin-left: 0;
    }

    .cloudui-content {
        padding: var(--space-lg);
    }

    .cloudui-grid.grid-cols-2,
    .cloudui-grid.grid-cols-3,
    .cloudui-grid.grid-cols-4,
    .cloudui-grid.grid-cols-5,
    .cloudui-grid.grid-cols-6 {
        grid-template-columns: repeat(1, 1fr);
    }

    /* Hide on mobile */
    .hidden-mobile {
        display: none !important;
    }
}

@media (min-width: 769px) {
    /* Hide on desktop */
    .hidden-desktop {
        display: none !important;
    }
}

/* ============================================
   Print Styles
   ============================================ */
@media print {
    .cloudui-sidebar,
    .cloudui-navbar,
    .no-print {
        display: none !important;
    }

    .cloudui-main {
        margin-left: 0;
    }

    .cloudui-card {
        box-shadow: none;
        border: 1px solid var(--gray-300);
    }
}

/* ============================================
   Accessibility
   ============================================ */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

/* Focus visible for keyboard navigation */
*:focus-visible {
    outline: 2px solid var(--primary-color);
    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;
    }
}