/* ========================================
   Minimalist Zen Theme for Bootstrap 5
   ======================================== */

/* Import Google Fonts for clean typography */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

/* ========================================
   CSS Custom Properties (Variables)
   ======================================== */
:root {
    /* Color Palette */
    --zen-white: #ffffff;
    --zen-light-gray: #f8f9fa;
    --zen-medium-gray: #e9ecef;
    --zen-dark-gray: #6c757d;
    --zen-charcoal: #495057;
    --zen-primary: #22c55e;        /* Muted green */
    --zen-primary-light: #86efac;  /* Light green */
    --zen-primary-dark: #16a34a;   /* Dark green */
    --zen-secondary: #f1f5f9;      /* Very light gray */
    --zen-accent: #64748b;         /* Slate gray */

    /* Typography */
    --zen-font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --zen-font-weight-light: 300;
    --zen-font-weight-normal: 400;
    --zen-font-weight-medium: 500;
    --zen-font-weight-semibold: 600;
    --zen-font-weight-bold: 700;

    /* Spacing & Layout */
    --zen-border-radius: 12px;
    --zen-border-radius-sm: 8px;
    --zen-border-radius-lg: 16px;
    --zen-shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.04);
    --zen-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    --zen-shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.12);

    /* Transitions */
    --zen-transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ========================================
   Global Styles
   ======================================== */
body {
    font-family: var(--zen-font-family);
    font-weight: var(--zen-font-weight-normal);
    background-color: var(--zen-light-gray);
    color: var(--zen-charcoal);
    line-height: 1.7;
    letter-spacing: -0.01em;
}

/* Smooth scrolling */
html {
    scroll-behavior: smooth;
}

/* ========================================
   Typography Overrides
   ======================================== */
h1, h2, h3, h4, h5, h6,
.h1, .h2, .h3, .h4, .h5, .h6 {
    font-family: var(--zen-font-family);
    font-weight: var(--zen-font-weight-semibold);
    color: var(--zen-charcoal);
    letter-spacing: -0.02em;
    margin-bottom: 1.5rem;
}

h1, .h1 { font-size: 2.5rem; font-weight: var(--zen-font-weight-bold); }
h2, .h2 { font-size: 2rem; }
h3, .h3 { font-size: 1.5rem; }
h4, .h4 { font-size: 1.25rem; }
h5, .h5 { font-size: 1.125rem; }
h6, .h6 { font-size: 1rem; }

p {
    margin-bottom: 1.5rem;
    color: var(--zen-dark-gray);
}

/* ========================================
   Button Styles
   ======================================== */
.btn {
    font-family: var(--zen-font-family);
    font-weight: var(--zen-font-weight-medium);
    border-radius: var(--zen-border-radius);
    padding: 0.75rem 1.5rem;
    border: none;
    transition: var(--zen-transition);
    letter-spacing: -0.01em;
    box-shadow: var(--zen-shadow-sm);
}

.btn-primary {
    background-color: var(--zen-primary);
    color: var(--zen-white);
    box-shadow: var(--zen-shadow);
}

.btn-primary:hover {
    background-color: var(--zen-primary-dark);
    transform: translateY(-1px);
    box-shadow: var(--zen-shadow-lg);
}

.btn-secondary {
    background-color: var(--zen-white);
    color: var(--zen-charcoal);
    border: 1px solid var(--zen-medium-gray);
}

.btn-secondary:hover {
    background-color: var(--zen-secondary);
    border-color: var(--zen-primary);
    color: var(--zen-primary);
    transform: translateY(-1px);
}

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

.btn-outline-primary:hover {
    background-color: var(--zen-primary);
    color: var(--zen-white);
    transform: translateY(-1px);
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1.125rem;
    border-radius: var(--zen-border-radius-lg);
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
    border-radius: var(--zen-border-radius-sm);
}

/* ========================================
   Card Styles
   ======================================== */
.card {
    background-color: var(--zen-white);
    border: none;
    border-radius: var(--zen-border-radius);
    box-shadow: var(--zen-shadow);
    transition: var(--zen-transition);
    overflow: hidden;
}

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

.card-header {
    background-color: var(--zen-secondary);
    border-bottom: 1px solid var(--zen-medium-gray);
    padding: 1.5rem;
    font-weight: var(--zen-font-weight-medium);
}

.card-body {
    padding: 2rem;
}

.card-footer {
    background-color: var(--zen-secondary);
    border-top: 1px solid var(--zen-medium-gray);
    padding: 1.5rem;
}

/* ========================================
   Form Styles
   ======================================== */
.form-control {
    border: 2px solid var(--zen-medium-gray);
    border-radius: var(--zen-border-radius);
    padding: 0.75rem 1rem;
    font-family: var(--zen-font-family);
    transition: var(--zen-transition);
    background-color: var(--zen-white);
}

.form-control:focus {
    border-color: var(--zen-primary);
    box-shadow: 0 0 0 3px rgba(34, 197, 94, 0.1);
    background-color: var(--zen-white);
}

.form-select {
    border: 2px solid var(--zen-medium-gray);
    border-radius: var(--zen-border-radius);
    padding: 0.75rem 1rem;
    background-color: var(--zen-white);
}

.form-select:focus {
    border-color: var(--zen-primary);
    box-shadow: 0 0 0 3px rgba(34, 197, 94, 0.1);
}

.form-label {
    font-weight: var(--zen-font-weight-medium);
    color: var(--zen-charcoal);
    margin-bottom: 0.5rem;
}

.form-text {
    color: var(--zen-dark-gray);
    font-size: 0.875rem;
}

/* ========================================
   Navigation Styles
   ======================================== */
.navbar {
    background-color: var(--zen-white);
    box-shadow: var(--zen-shadow);
    border-bottom: 1px solid var(--zen-medium-gray);
    padding: 1rem 0;
}

.navbar-brand {
    font-weight: var(--zen-font-weight-bold);
    color: var(--zen-charcoal);
    font-size: 1.5rem;
}

.navbar-nav .nav-link {
    color: var(--zen-dark-gray);
    font-weight: var(--zen-font-weight-medium);
    padding: 0.5rem 1rem;
    border-radius: var(--zen-border-radius-sm);
    transition: var(--zen-transition);
}

.navbar-nav .nav-link:hover,
.navbar-nav .nav-link.active {
    color: var(--zen-primary);
    background-color: var(--zen-secondary);
}

.navbar-toggler {
    border: none;
    padding: 0.5rem;
}

.navbar-toggler:focus {
    box-shadow: none;
}

/* ========================================
   Alert Styles
   ======================================== */
.alert {
    border: none;
    border-radius: var(--zen-border-radius);
    padding: 1.25rem 1.5rem;
    border-left: 4px solid;
}

.alert-primary {
    background-color: rgba(34, 197, 94, 0.1);
    color: var(--zen-primary-dark);
    border-left-color: var(--zen-primary);
}

.alert-success {
    background-color: rgba(34, 197, 94, 0.1);
    color: var(--zen-primary-dark);
    border-left-color: var(--zen-primary);
}

.alert-warning {
    background-color: rgba(251, 191, 36, 0.1);
    color: #92400e;
    border-left-color: #fbbf24;
}

.alert-danger {
    background-color: rgba(239, 68, 68, 0.1);
    color: #991b1b;
    border-left-color: #ef4444;
}

.alert-info {
    background-color: rgba(59, 130, 246, 0.1);
    color: #1e40af;
    border-left-color: #3b82f6;
}

/* ========================================
   Badge Styles
   ======================================== */
.badge {
    font-weight: var(--zen-font-weight-medium);
    border-radius: var(--zen-border-radius-sm);
    padding: 0.5rem 0.75rem;
}

.badge.bg-primary {
    background-color: var(--zen-primary);
}

/* ========================================
   Modal Styles
   ======================================== */
.modal-content {
    border: none;
    border-radius: var(--zen-border-radius-lg);
    box-shadow: var(--zen-shadow-lg);
}

.modal-header {
    border-bottom: 1px solid var(--zen-medium-gray);
    padding: 2rem 2rem 1rem;
}

.modal-body {
    padding: 1rem 2rem;
}

.modal-footer {
    border-top: 1px solid var(--zen-medium-gray);
    padding: 1rem 2rem 2rem;
}

/* ========================================
   Table Styles
   ======================================== */
.table {
    background-color: var(--zen-white);
    border-radius: var(--zen-border-radius);
    overflow: hidden;
    box-shadow: var(--zen-shadow);
}

.table thead th {
    background-color: var(--zen-secondary);
    border-bottom: 2px solid var(--zen-medium-gray);
    font-weight: var(--zen-font-weight-semibold);
    color: var(--zen-charcoal);
    padding: 1rem;
}

.table tbody td {
    padding: 1rem;
    border-bottom: 1px solid var(--zen-medium-gray);
}

.table-hover tbody tr:hover {
    background-color: var(--zen-secondary);
}

/* ========================================
   Pagination Styles
   ======================================== */
.pagination .page-link {
    border: 2px solid var(--zen-medium-gray);
    color: var(--zen-dark-gray);
    padding: 0.75rem 1rem;
    margin: 0 0.125rem;
    border-radius: var(--zen-border-radius);
    transition: var(--zen-transition);
}

.pagination .page-link:hover {
    border-color: var(--zen-primary);
    color: var(--zen-primary);
    background-color: var(--zen-secondary);
}

.pagination .page-item.active .page-link {
    background-color: var(--zen-primary);
    border-color: var(--zen-primary);
    color: var(--zen-white);
}

/* ========================================
   Utility Classes
   ======================================== */
.text-primary {
    color: var(--zen-primary) !important;
}

.bg-primary {
    background-color: var(--zen-primary) !important;
}

.border-primary {
    border-color: var(--zen-primary) !important;
}

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

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

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

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

/* ========================================
   Container Spacing
   ======================================== */
.container,
.container-fluid {
    padding-top: 2rem;
    padding-bottom: 2rem;
}

/* ========================================
   Custom Components
   ======================================== */

/* Zen Card with hover effect */
.zen-card {
    background: var(--zen-white);
    border-radius: var(--zen-border-radius-lg);
    padding: 2rem;
    box-shadow: var(--zen-shadow);
    transition: var(--zen-transition);
    border: 1px solid var(--zen-medium-gray);
}

.zen-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--zen-shadow-lg);
    border-color: var(--zen-primary-light);
}

/* Zen Section Spacing */
.zen-section {
    padding: 4rem 0;
}

.zen-section-lg {
    padding: 6rem 0;
}

/* Zen Divider */
.zen-divider {
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--zen-medium-gray), transparent);
    border: none;
    margin: 3rem 0;
}

/* ========================================
   Responsive Design
   ======================================== */
@media (max-width: 768px) {
    .container {
        padding-left: 1rem;
        padding-right: 1rem;
    }

    .zen-section {
        padding: 2rem 0;
    }

    .zen-section-lg {
        padding: 3rem 0;
    }

    h1, .h1 { font-size: 2rem; }
    h2, .h2 { font-size: 1.75rem; }
    h3, .h3 { font-size: 1.375rem; }
}

/* ========================================
   Focus Styles for Accessibility
   ======================================== */
*:focus-visible {
    outline: 2px solid var(--zen-primary);
    outline-offset: 2px;
}

.btn:focus-visible,
.form-control:focus-visible,
.form-select:focus-visible {
    outline: none;
    box-shadow: 0 0 0 3px rgba(34, 197, 94, 0.3);
}