/**
 * PureStats Dashboard Theme
 * Based on Bootstrap 5 with custom styling
 *
 * @version 1.0.0
 */

/* ========================================
   1. CSS Variables & Theme Configuration
   ======================================== */
:root {
    /* Primary Colors */
    --primary: #0E6F5C;
    --primary-hover: #095343;
    --primary-light: #DDEDE7;
    --primary-dark: #05382E;
    --accent: #B8D94A;
    --accent-soft: #EEF6C8;
    --ink: #111718;
    --muted-ink: #5B6363;
    --paper: #F7F5EF;
    --paper-deep: #ECE8DC;
    --line: #D9D6CB;

    /* Secondary Colors */
    --secondary: #5B6363;
    --secondary-hover: #424B4B;
    --secondary-light: #EFEDE5;

    /* Status Colors */
    --success: #0E6F5C;
    --success-light: #DDEDE7;
    --success-dark: #05382E;
    --danger: #C94A3A;
    --danger-light: #F7D9D2;
    --danger-dark: #7C241A;
    --warning: #D89A1D;
    --warning-light: #F6E8BD;
    --warning-dark: #6F4A08;
    --info: #2D6F9F;
    --info-light: #D7E7F0;

    /* Grayscale */
    --gray-50: #F7F5EF;
    --gray-100: #EFEDE5;
    --gray-200: #D9D6CB;
    --gray-300: #C6C2B6;
    --gray-400: #98958D;
    --gray-500: #73766F;
    --gray-600: #5B6363;
    --gray-700: #374241;
    --gray-800: #232D2C;
    --gray-900: #111718;

    /* Layout */
    --body-bg: #F7F5EF;
    --card-bg: #FFFFFF;
    --border-color: #D9D6CB;
    --border-radius: 0.5rem;
    --border-radius-sm: 0.375rem;
    --border-radius-lg: 0.625rem;
    --form-control-height: 2.5rem;

    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --font-size-base: 0.875rem;
    --font-size-sm: 0.8125rem;
    --font-size-xs: 0.775rem;
    --font-size-lg: 1rem;
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;

    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(17, 23, 24, 0.04);
    --shadow: 0 1px 3px rgba(17, 23, 24, 0.05);
    --shadow-md: 0 8px 20px rgba(17, 23, 24, 0.08);
    --shadow-lg: 0 18px 42px rgba(17, 23, 24, 0.12);

    /* Transitions */
    --transition-fast: 150ms ease-in-out;
    --transition-base: 200ms ease-in-out;
    --transition-slow: 300ms ease-in-out;
}

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

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-normal);
    line-height: 1.5;
    color: var(--gray-900);
    background-color: var(--body-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
    font-weight: var(--font-weight-semibold);
    line-height: 1.25;
    color: var(--gray-900);
}

h1 { font-size: 2rem; }
h2 { font-size: 1.5rem; }
h3 { font-size: 1.25rem; }
h4 { font-size: 1.125rem; }
h5 { font-size: 1rem; }
h6 { font-size: 0.875rem; }

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

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

/* ========================================
   3. Layout Components
   ======================================== */
.analytics-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.analytics-header {
    background-color: var(--card-bg);
    border-bottom: 1px solid var(--border-color);
    padding: var(--spacing-md) 0;
    margin-bottom: var(--spacing-xl);
}

.analytics-main {
    padding-bottom: var(--spacing-2xl);
}

/* ========================================
   7. Report Cards
   ======================================== */
.reports-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.report-card {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: var(--spacing-lg);
}

/* ========================================
   10. Buttons
   ======================================== */
.btn,
button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-lg);
    border: 1px solid transparent;
    border-radius: var(--border-radius-sm);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-medium);
    font-family: var(--font-family);
    cursor: pointer;
    transition: all var(--transition-fast);
    white-space: nowrap;
}

.btn-primary {
    background-color: var(--primary);
    color: white;
    border-color: var(--primary);
}

.btn-primary:hover {
    background-color: var(--primary-hover);
    border-color: var(--primary-hover);
    color: white;
}

.btn-secondary {
    background-color: var(--card-bg);
    color: var(--gray-700);
    border-color: var(--border-color);
}

.btn-secondary:hover {
    background-color: var(--gray-200);
    color: var(--gray-700);
}

.btn-danger {
    background-color: var(--danger);
    border-color: var(--danger);
    color: white;
}

.btn-danger:hover {
    background-color: var(--danger-dark);
    border-color: var(--danger-dark);
    color: white;
}

.btn-outline {
    background-color: transparent;
    color: var(--primary);
    border-color: var(--primary);
}

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

.btn-sm {
    padding: var(--spacing-xs) var(--spacing-md);
    font-size: var(--font-size-sm);
}

.btn-lg {
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: var(--font-size-lg);
}

/* ========================================
   12. Modals
   ======================================== */
.modal-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.modal {
    background-color: var(--card-bg);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
    max-width: 600px;
    width: 90%;
    max-height: 90vh;
    overflow: auto;
}

.modal-header {
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
}

.modal-title {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    color: var(--gray-900);
}

.modal-body {
    padding: var(--spacing-lg);
}

.modal-footer {
    padding: var(--spacing-lg);
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: flex-end;
    gap: var(--spacing-sm);
}

.modal-backdrop[hidden],
.admin-modal-backdrop,
.analytics-confirm-backdrop,
.settings-modal-backdrop {
    display: none !important;
}

.admin-modal-backdrop.is-open,
.analytics-confirm-backdrop.is-open,
.settings-modal-backdrop.is-open {
    display: flex !important;
}

.admin-modal,
.analytics-confirm-modal {
    max-width: 480px;
}

.admin-modal-header,
.analytics-confirm-modal-header {
    align-items: center;
    display: flex;
    gap: 1rem;
    justify-content: space-between;
}

.admin-modal-copy,
.analytics-confirm-modal-copy {
    color: var(--gray-700);
    margin: 0;
}

.admin-reauth-fields {
    display: grid;
    gap: 0.5rem;
    margin-top: 1rem;
}

.admin-reauth-fields[hidden] {
    display: none !important;
}

.admin-reauth-label {
    color: var(--gray-700);
    font-size: var(--font-size-sm);
    font-weight: 800;
}

/* ========================================
   13. Loading States
   ======================================== */
.skeleton {
    background: linear-gradient(90deg, var(--gray-200) 25%, var(--gray-100) 50%, var(--gray-200) 75%);
    background-size: 200% 100%;
    animation: loading 1.5s infinite;
    border-radius: var(--border-radius-sm);
}

@keyframes loading {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

.spinner {
    width: 24px;
    height: 24px;
    border: 3px solid var(--gray-300);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

/* ========================================
   14. Utility Classes
   ======================================== */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.text-primary { color: var(--primary); }
.text-secondary { color: var(--secondary); }
.text-success { color: var(--success); }
.text-danger { color: var(--danger); }
.text-warning { color: var(--warning); }
.text-info { color: var(--info); }
.text-muted { color: var(--gray-500); }

.bg-primary { background-color: var(--primary); }
.bg-secondary { background-color: var(--secondary); }
.bg-success { background-color: var(--success); }
.bg-danger { background-color: var(--danger); }
.bg-warning { background-color: var(--warning); }
.bg-info { background-color: var(--info); }

.d-none { display: none; }
.d-block { display: block; }
.d-inline { display: inline; }
.d-inline-block { display: inline-block; }
.d-flex { display: flex; }
.d-grid { display: grid; }

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

.justify-content-start { justify-content: flex-start; }
.justify-content-center { justify-content: center; }
.justify-content-end { justify-content: flex-end; }
.justify-content-between { justify-content: space-between; }

.gap-1 { gap: var(--spacing-xs); }
.gap-2 { gap: var(--spacing-sm); }
.gap-3 { gap: var(--spacing-md); }
.gap-4 { gap: var(--spacing-lg); }
.gap-5 { gap: var(--spacing-xl); }

.m-0 { margin: 0; }
.m-1 { margin: var(--spacing-xs); }
.m-2 { margin: var(--spacing-sm); }
.m-3 { margin: var(--spacing-md); }
.m-4 { margin: var(--spacing-lg); }
.m-5 { margin: var(--spacing-xl); }

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: var(--spacing-xs); }
.mt-2 { margin-top: var(--spacing-sm); }
.mt-3 { margin-top: var(--spacing-md); }
.mt-4 { margin-top: var(--spacing-lg); }
.mt-5 { margin-top: var(--spacing-xl); }

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: var(--spacing-xs); }
.mb-2 { margin-bottom: var(--spacing-sm); }
.mb-3 { margin-bottom: var(--spacing-md); }
.mb-4 { margin-bottom: var(--spacing-lg); }
.mb-5 { margin-bottom: var(--spacing-xl); }

.p-0 { padding: 0; }
.p-1 { padding: var(--spacing-xs); }
.p-2 { padding: var(--spacing-sm); }
.p-3 { padding: var(--spacing-md); }
.p-4 { padding: var(--spacing-lg); }
.p-5 { padding: var(--spacing-xl); }