/* 
 * Modern CSS Framework - Bootstrap & jQuery Free
 * Copyright (c) Evolve Telecom LLC. All rights reserved.
 */

:root {
    --primary-color: #667eea;
    --primary-hover: #5a67d8;
    --secondary-color: #6c757d;
    --success-color: #198754;
    --danger-color: #dc3545;
    --warning-color: #ffc107;
    --info-color: #0dcaf0;
    --light-color: #f8f9fa;
    --dark-color: #212529;
    --dark-brown: rgb(91, 91, 93);
    --white: #ffffff;
    --gray-100: #f8f9fa;
    --gray-200: #e9ecef;
    --gray-300: #dee2e6;
    --gray-400: #ced4da;
    --gray-500: #adb5bd;
    --gray-600: #6c757d;
    --gray-700: #495057;
    --gray-800: #343a40;
    --gray-900: #212529;
    --spacing-1: 0.25rem;
    --spacing-2: 0.5rem;
    --spacing-3: 1rem;
    --spacing-4: 1.5rem;
    --spacing-5: 3rem;
    --border-radius: 0.375rem;
    --shadow-sm: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
    --shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.15);
    --shadow-evolve: 0 4px 5px 0 rgba(0, 0, 0, .14), 0 1px 10px 0 rgba(0, 0, 0, .12), 0 2px 4px -1px rgba(0, 0, 0, .3);
    --transition: all 0.3s ease;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    line-height: 1.5;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    color: var(--dark-color);
    background-color: #f4f4f4;
    min-height: 100vh;
    padding-bottom: 60px;
}

/* Container */
.container {
    width: 100%;
    max-width: 1140px;
    margin: 0 auto;
    padding: 0 var(--spacing-3);
}

/* Grid System - Mobile First */
.row {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    gap: var(--spacing-3);
}

/* All columns full-width by default (mobile) */
[class*="col-"] {
    grid-column: span 12;
}

/* Medium screens and up (768px+) */
@media (min-width: 768px) {
    .col-md-1 { grid-column: span 1; }
    .col-md-2 { grid-column: span 2; }
    .col-md-3 { grid-column: span 3; }
    .col-md-4 { grid-column: span 4; }
    .col-md-5 { grid-column: span 5; }
    .col-md-6 { grid-column: span 6; }
    .col-md-7 { grid-column: span 7; }
    .col-md-8 { grid-column: span 8; }
    .col-md-9 { grid-column: span 9; }
    .col-md-10 { grid-column: span 10; }
    .col-md-11 { grid-column: span 11; }
    .col-md-12 { grid-column: span 12; }
}

/* Large screens and up (992px+) */
@media (min-width: 992px) {
    .col-lg-1 { grid-column: span 1; }
    .col-lg-2 { grid-column: span 2; }
    .col-lg-3 { grid-column: span 3; }
    .col-lg-4 { grid-column: span 4; }
    .col-lg-5 { grid-column: span 5; }
    .col-lg-6 { grid-column: span 6; }
    .col-lg-7 { grid-column: span 7; }
    .col-lg-8 { grid-column: span 8; }
    .col-lg-9 { grid-column: span 9; }
    .col-lg-10 { grid-column: span 10; }
    .col-lg-11 { grid-column: span 11; }
    .col-lg-12 { grid-column: span 12; }
}

/* XL screens (1200px+) */
@media (min-width: 1200px) {
    .col-xl-1 { grid-column: span 1; }
    .col-xl-2 { grid-column: span 2; }
    .col-xl-3 { grid-column: span 3; }
    .col-xl-4 { grid-column: span 4; }
    .col-xl-5 { grid-column: span 5; }
    .col-xl-6 { grid-column: span 6; }
    .col-xl-7 { grid-column: span 7; }
    .col-xl-8 { grid-column: span 8; }
    .col-xl-9 { grid-column: span 9; }
    .col-xl-10 { grid-column: span 10; }
    .col-xl-11 { grid-column: span 11; }
    .col-xl-12 { grid-column: span 12; }
}

/* Always full width */
.col-10 { grid-column: span 10; }
.col-12 { grid-column: span 12; }

/* Flexbox Utilities */
.d-flex { display: flex; }
.d-none { display: none; }
.d-block { display: block; }
.d-inline { display: inline; }
.d-inline-block { display: inline-block; }
.flex-wrap { flex-wrap: wrap; }
.flex-column { flex-direction: column; }
.justify-content-center { justify-content: center; }
.justify-content-between { justify-content: space-between; }
.justify-content-end { justify-content: flex-end; }
.justify-content-evenly {justify-content: space-evenly;}
.align-items-center { align-items: center; }
.align-items-start { align-items: flex-start; }
.gap-2 { gap: var(--spacing-2); }
.gap-3 { gap: var(--spacing-3); }
.gap-4 { gap: var(--spacing-4); }

/* Card */
.card {
    background: var(--white);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    overflow: hidden;
}
.card-header {
    padding: var(--spacing-3);
    border-bottom: 1px solid var(--gray-200);
    background: var(--gray-100);
}
.card-body { padding: var(--spacing-4); }
.card-footer {
    padding: var(--spacing-3);
    border-top: 1px solid var(--gray-200);
    background: var(--gray-100);
}

/* Form Controls */
.form-label {
    display: block;
    margin-bottom: var(--spacing-1);
    font-weight: 600;
    color: var(--gray-700);
}
.form-control {
    display: block;
    width: 100%;
    padding: 0.6rem 0.8rem;
    font-size: 1rem;
    border: 1px solid var(--gray-400);
    border-radius: var(--border-radius);
    transition: var(--transition);
}
.form-control:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.25);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    padding: 0.6rem 1.2rem;
    font-size: 0.95rem;
    font-weight: 500;
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
}
.btn:hover { transform: translateY(-1px); box-shadow: var(--shadow-sm); }
.btn-primary { background: var(--primary-color); color: var(--white); }
.btn-primary:hover { background: var(--primary-hover); }
.btn-secondary { background: var(--secondary-color); color: var(--white); }
.btn-success { background: var(--success-color); color: var(--white); }
.btn-danger { background: var(--danger-color); color: var(--white); }
.btn-outline-primary { background: transparent; color: var(--primary-color); border: 1px solid var(--primary-color); }
.btn-outline-secondary { background: transparent; color: var(--secondary-color); border: 1px solid var(--secondary-color); }
.btn-outline-danger { background: transparent; color: var(--danger-color); border: 1px solid var(--danger-color); }
.w-100 { width: 100%; }

/* Alerts */
.alert {
    padding: var(--spacing-3);
    border-radius: var(--border-radius);
    margin-bottom: var(--spacing-3);
}
.alert-info { background: #cff4fc; color: #055160; }
.alert-success { background: #d1e7dd; color: #0f5132; }
.alert-warning { background: #fff3cd; color: #664d03; }
.alert-danger { background: #f8d7da; color: #842029; }

/* Badge */
.badge {
    display: inline-block;
    padding: 0.35em 0.65em;
    font-size: 0.75em;
    font-weight: 600;
    border-radius: var(--border-radius);
}
.bg-success { background: var(--success-color); color: var(--white); }
.bg-secondary { background: var(--secondary-color); color: var(--white); }
.bg-primary { background: var(--primary-color); color: var(--white); }

/* Text */
.truncate {
    white-space: nowrap; /* Prevents text from wrapping to a second line */
    overflow: hidden; /* Hides the text that overflows the container */
    text-overflow: ellipsis; /* Adds the "..." at the end */
    width: 200px; /* A width (or max-width) is required */
}
.text-center { text-align: center; }
.text-left {text-align: left;}
.text-muted { color: var(--gray-600); }
.text-success { color: var(--success-color); }
.text-danger { color: var(--danger-color); }
.text-white { color: var(--white); }
.fw-bold { font-weight: 700; }
.small { font-size: 0.875rem; }

/* Spacing */
.m-0 { margin: 0; }
.mt-2 { margin-top: var(--spacing-2); }
.mt-3 { margin-top: var(--spacing-3); }
.mt-4 { margin-top: var(--spacing-4); }
.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: var(--spacing-1); }
.mb-2 { margin-bottom: var(--spacing-2); }
.mb-3 { margin-bottom: var(--spacing-3); }
.mb-4 { margin-bottom: var(--spacing-4); }
.me-1 { margin-right: var(--spacing-1); }
.me-2 { margin-right: var(--spacing-2); }
.my-4 { margin-top: var(--spacing-4); margin-bottom: var(--spacing-4); }
.p-2 { padding: var(--spacing-2); }
.p-3 { padding: var(--spacing-3); }
.p-4 { padding: var(--spacing-4); }
.py-3 { padding-top: var(--spacing-3); padding-bottom: var(--spacing-3); }
.py-4 { padding-top: var(--spacing-4); padding-bottom: var(--spacing-4); }

/* Background & Border */
.bg-light { background: var(--gray-100); }
.bg-white { background: var(--white); }
.rounded { border-radius: var(--border-radius); }
.border { border: 1px solid var(--gray-300); }
.shadow-sm { box-shadow: var(--shadow-sm); }

/* Responsive Display */
@media (min-width: 768px) {
    .d-md-flex { display: flex; }
    .d-md-block { display: block; }
    .d-md-none { display: none; }
}

/* Footer */
.footer {
    position: absolute;
    bottom: 0;
    width: 100%;
    padding: var(--spacing-3) 0;
    border-top: 1px solid var(--gray-300);
    background: var(--white);
    text-align: center;
}

/* Validation */
.field-validation-error, .text-danger { color: var(--danger-color); font-size: 0.875rem; }
.input-validation-error { border-color: var(--danger-color); }

/* ============================================
   Global Page Layout
   ============================================ */
.main-content {
    padding: var(--spacing-4) 0;
    min-height: calc(100vh - 140px);
}

.page-container {
    width: 100%;
    max-width: 700px;
    margin: 0 auto;
    padding: 0 var(--spacing-3);
}

.page-container.wide {
    max-width: 1140px;
}

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