/* ========================================
   GLOBAL STYLES - BASE CSS FOR ALL PAGES
   ======================================== */

:root {
    /* Brand Colors */
    --brand-primary: #0066cc;
    --brand-primary-light: #0080ff;
    --brand-primary-dark: #0052a3;
    --brand-secondary: #ff6b35;
    --brand-secondary-light: #ff8456;
    --brand-secondary-dark: #e55a2b;
    
    /* Status Colors */
    --color-success: #28a745;
    --color-warning: #ffc107;
    --color-danger: #dc3545;
    --color-info: #17a2b8;
    
    /* Neutral Colors */
    --color-dark: #1a1a1a;
    --color-gray-900: #212529;
    --color-gray-800: #343a40;
    --color-gray-700: #495057;
    --color-gray-600: #6c757d;
    --color-gray-500: #868e96;
    --color-gray-400: #adb5bd;
    --color-gray-300: #dee2e6;
    --color-gray-200: #e9ecef;
    --color-gray-100: #f8f9fa;
    --color-gray-50: #f5f5f5;
    --color-light: #ffffff;
    
    /* Legacy color names for backward compatibility */
    --primary-color: #0066cc;
    --secondary-color: #ff6b35;
    --success-color: #28a745;
    --warning-color: #ffc107;
    --danger-color: #dc3545;
    --info-color: #17a2b8;
    --dark: #1a1a1a;
    --gray-dark: #333333;
    --gray: #666666;
    --gray-light: #f5f5f5;
    --light: #ffffff;
    
    /* Typography */
    --font-primary: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    --font-secondary: 'Georgia', serif;
    --font-size-base: 16px;
    --line-height-base: 1.6;
    
    /* Corporate Spacing Scale */
    --spacing-xs: 0.25rem;   /* 4px */
    --spacing-sm: 0.5rem;    /* 8px */
    --spacing-md: 1rem;      /* 16px */
    --spacing-lg: 1.5rem;    /* 24px */
    --spacing-xl: 2rem;      /* 32px */
    --spacing-2xl: 3rem;     /* 48px */
    --spacing-3xl: 4rem;     /* 64px */
    --spacing-4xl: 6rem;     /* 96px */
    
    /* Border Radius */
    --border-radius: 8px;
    --border-radius-lg: 12px;
    --border-radius-xl: 16px;
    
    /* Shadows - Enterprise Design */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.12);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.15);
    --shadow-xl: 0 15px 35px rgba(0, 0, 0, 0.2);
    --shadow-2xl: 0 20px 50px rgba(0, 0, 0, 0.25);
    
    /* Smooth Transitions */
    --transition-fast: 0.15s ease-in-out;
    --transition-base: 0.3s ease-in-out;
    --transition-slow: 0.5s ease-in-out;
    --transition-slower: 0.8s ease-in-out;
}

/* ========================================
   RESET & BASE STYLES
   ======================================== */

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    font-size: var(--font-size-base);
    line-height: var(--line-height-base);
    color: var(--gray-dark);
    background-color: var(--light);
}

/* ========================================
   TYPOGRAPHY
   ======================================== */

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-primary);
    font-weight: 600;
    line-height: 1.3;
    color: var(--dark);
    margin-bottom: var(--spacing-lg);
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.75rem; }
h4 { font-size: 1.5rem; }
h5 { font-size: 1.25rem; }
h6 { font-size: 1rem; }

p {
    margin-bottom: var(--spacing-md);
}

a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color 0.3s ease;
}

a:hover {
    color: var(--secondary-color);
}

/* ========================================
   BUTTONS
   ======================================== */

.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: var(--border-radius);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-base);
    text-decoration: none;
    text-align: center;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

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

.btn-primary:hover {
    background-color: #0052a3;
}

.btn-secondary {
    background-color: var(--secondary-color);
    color: var(--light);
}

.btn-secondary:hover {
    background-color: #e55a2b;
}

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

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

.btn-light {
    background-color: var(--light);
    color: var(--dark);
    border: 2px solid var(--light);
}

.btn-light:hover {
    background-color: var(--gray-light);
}

.btn-block {
    width: 100%;
    display: block;
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

/* ========================================
   HEADER & NAVIGATION
   ======================================== */

.header {
    background-color: var(--light);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md) 0;
    max-width: 1200px;
    margin: 0 auto;
    padding-left: var(--spacing-lg);
    padding-right: var(--spacing-lg);
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    font-weight: 700;
    color: var(--dark);
}

.logo img {
    height: 40px;
}

.company-name {
    font-size: 1.5rem;
    color: var(--primary-color);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-xl);
    align-items: center;
}

.nav-menu a {
    color: var(--gray-dark);
    font-weight: 500;
    transition: color 0.3s ease;
}

.nav-menu a:hover {
    color: var(--primary-color);
}

.menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    flex-direction: column;
    gap: 5px;
}

.menu-toggle span {
    width: 25px;
    height: 3px;
    background-color: var(--dark);
    border-radius: 2px;
    transition: all 0.3s ease;
}

/* ========================================
   CONTAINERS & SECTIONS
   ======================================== */

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

main {
    min-height: calc(100vh - 60px);
}

.section-white {
    background-color: var(--light);
}

.section-light {
    background-color: var(--gray-light);
    padding: var(--spacing-2xl) 0;
}

.section-dark {
    background-color: var(--dark);
    color: var(--light);
    padding: var(--spacing-2xl) 0;
}

/* ========================================
   FOOTER
   ======================================== */

.footer {
    background-color: var(--gray-dark);
    color: var(--light);
    padding: var(--spacing-2xl) 0 var(--spacing-lg);
    margin-top: var(--spacing-2xl);
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-2xl);
    margin-bottom: var(--spacing-2xl);
}

.footer-section h4 {
    color: var(--light);
    margin-bottom: var(--spacing-md);
}

.footer-section ul {
    list-style: none;
}

.footer-section li {
    margin-bottom: var(--spacing-sm);
}

.footer-section a {
    color: #ccc;
    transition: color 0.3s ease;
}

.footer-section a:hover {
    color: var(--light);
}

.social-links {
    display: flex;
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
}

.social-links a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    transition: all 0.3s ease;
}

.social-links a:hover {
    background-color: var(--primary-color);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: var(--spacing-lg);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.footer-links a {
    margin-right: var(--spacing-lg);
}

/* ========================================
   FORMS
   ======================================== */

.form-group {
    margin-bottom: var(--spacing-lg);
}

label {
    display: block;
    margin-bottom: var(--spacing-sm);
    font-weight: 600;
    color: var(--dark);
}

input[type="text"],
input[type="email"],
input[type="password"],
input[type="tel"],
input[type="number"],
input[type="file"],
textarea,
select {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid #ddd;
    border-radius: var(--border-radius);
    font-size: 1rem;
    font-family: inherit;
    transition: border-color 0.3s ease;
}

input:focus,
textarea:focus,
select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(0, 102, 204, 0.1);
}

textarea {
    resize: vertical;
    min-height: 150px;
}

/* ========================================
   UTILITY CLASSES
   ======================================== */

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

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

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

.text-lead {
    font-size: 1.25rem;
    font-weight: 500;
    line-height: 1.6;
    color: var(--gray-dark);
}

.mt-4 {
    margin-top: var(--spacing-xl);
}

.mb-2 {
    margin-bottom: var(--spacing-sm);
}

.mb-4 {
    margin-bottom: var(--spacing-xl);
}

.no-content {
    text-align: center;
    padding: var(--spacing-2xl);
    color: var(--gray);
}

/* ========================================
   PROFESSIONAL STYLING ENHANCEMENTS
   ======================================== */

/* Container Enhancements */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Section Backgrounds */
.section {
    padding: 4rem 0;
}

.section-white {
    background-color: var(--light);
}

.section-light {
    background-color: var(--gray-light);
}

.section-dark {
    background-color: var(--dark);
    color: var(--light);
}

.section-dark h2,
.section-dark h3,
.section-dark h4 {
    color: var(--light);
}

/* Improved Typography */
p {
    margin-bottom: 1rem;
}

strong {
    font-weight: 600;
    color: var(--dark);
}

em {
    font-style: italic;
    color: var(--gray-dark);
}

/* Link Improvements */
a {
    transition: color 0.3s ease, text-decoration 0.3s ease;
}

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

/* Button Enhanced Styles */
.btn-secondary {
    background-color: var(--secondary-color);
}

.btn-secondary:hover {
    background-color: #e55a2b;
}

.btn-success {
    background-color: var(--success-color);
    color: var(--light);
}

.btn-success:hover {
    background-color: #219653;
}

.btn-lg {
    padding: 1rem 2.5rem;
    font-size: 1.1rem;
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.9rem;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* Badge Styles */
.badge {
    display: inline-block;
    padding: 0.4rem 0.8rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    background-color: var(--primary-color);
    color: white;
}

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

.badge-secondary {
    background-color: var(--secondary-color);
}

.badge-success {
    background-color: var(--success-color);
}

.badge-warning {
    background-color: var(--warning-color);
    color: var(--dark);
}

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

/* Card Styles */
.card {
    background: white;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    padding: 2rem;
    transition: all 0.3s ease;
}

.card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

.card-header {
    border-bottom: 1px solid var(--gray-light);
    padding-bottom: 1rem;
    margin-bottom: 1rem;
}

.card-body {
    padding: 0;
}

.card-footer {
    border-top: 1px solid var(--gray-light);
    padding-top: 1rem;
    margin-top: 1rem;
}

/* List Styles */
.list-unstyled {
    list-style: none;
    padding: 0;
}

ul, ol {
    margin-bottom: 1.5rem;
    padding-left: 1.5rem;
}

li {
    margin-bottom: 0.5rem;
    line-height: 1.8;
}

/* Table Styles */
table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 2rem;
}

th, td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid var(--gray-light);
}

th {
    background-color: var(--gray-light);
    font-weight: 600;
    color: var(--dark);
}

tr:hover {
    background-color: var(--gray-light);
}

/* Form Styles */
input, textarea, select {
    width: 100%;
    padding: 0.75rem;
    margin-bottom: 1rem;
    border: 1px solid var(--gray-light);
    border-radius: var(--border-radius);
    font-family: var(--font-primary);
    font-size: 1rem;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

input:focus, textarea:focus, select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(0, 102, 204, 0.1);
}

label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--dark);
}

/* Responsive Design */

@media (max-width: 768px) {
    h1 { font-size: 2rem; }
    h2 { font-size: 1.5rem; }
    h3 { font-size: 1.25rem; }

    .nav-menu {
        position: absolute;
        top: 60px;
        left: 0;
        right: 0;
        flex-direction: column;
        background-color: var(--light);
        gap: 0;
        display: none;
        box-shadow: var(--shadow-md);
    }

    .nav-menu.active {
        display: flex;
    }

    .nav-menu li {
        padding: var(--spacing-md) var(--spacing-lg);
        border-bottom: 1px solid var(--gray-light);
    }

    .menu-toggle {
        display: flex;
    }

    .footer-bottom {
        flex-direction: column;
        gap: var(--spacing-lg);
    }
}

/* ========================================
   PAGE LOADING INDICATOR
   ======================================== */

.page-loading-indicator {
    position: fixed;
    top: 0;
    left: -100%;
    width: 100%;
    height: 3px;
    z-index: 9999;
    transition: left var(--transition-fast) ease-in-out;
}

.page-loading-indicator.active {
    left: 0;
}

.loading-bar {
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, var(--brand-primary) 0%, var(--brand-secondary) 100%);
    box-shadow: 0 0 10px rgba(0, 102, 204, 0.5);
    animation: slideLoading 0.8s ease-in-out infinite;
}

@keyframes slideLoading {
    0% {
        width: 10%;
    }
    50% {
        width: 80%;
    }
    100% {
        width: 100%;
    }
}

/* ========================================
   TOAST NOTIFICATIONS
   ======================================== */

.toast-container {
    position: fixed;
    top: 2rem;
    right: 2rem;
    z-index: 9998;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    max-width: 400px;
}

.toast {
    background: white;
    border-radius: var(--border-radius-lg);
    padding: 1.25rem;
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    animation: slideInToast var(--transition-base) ease-out;
    min-width: 320px;
    border-left: 4px solid var(--color-info);
}

.toast.success {
    border-left-color: var(--color-success);
}

.toast.success .toast-icon {
    color: var(--color-success);
}

.toast.error {
    border-left-color: var(--color-danger);
}

.toast.error .toast-icon {
    color: var(--color-danger);
}

.toast.warning {
    border-left-color: var(--color-warning);
}

.toast.warning .toast-icon {
    color: var(--color-warning);
}

.toast.info {
    border-left-color: var(--color-info);
}

.toast.info .toast-icon {
    color: var(--color-info);
}

.toast-icon {
    font-size: 1.5rem;
    flex-shrink: 0;
    margin-top: 0.25rem;
}

.toast-content {
    flex: 1;
}

.toast-title {
    font-weight: 600;
    color: var(--color-dark);
    margin-bottom: 0.25rem;
    font-size: 0.95rem;
}

.toast-message {
    color: var(--color-gray-700);
    font-size: 0.9rem;
    line-height: 1.5;
}

.toast-close {
    background: none;
    border: none;
    font-size: 1.25rem;
    color: var(--color-gray-600);
    cursor: pointer;
    transition: color var(--transition-fast);
    flex-shrink: 0;
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
}

.toast-close:hover {
    color: var(--color-dark);
}

.toast-progress {
    position: absolute;
    bottom: 0;
    left: 0;
    height: 2px;
    background: var(--color-info);
    animation: progressBar 3s linear forwards;
}

.toast.success .toast-progress {
    background: var(--color-success);
}

.toast.error .toast-progress {
    background: var(--color-danger);
}

.toast.warning .toast-progress {
    background: var(--color-warning);
}

@keyframes slideInToast {
    from {
        opacity: 0;
        transform: translateX(400px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes progressBar {
    from {
        width: 100%;
    }
    to {
        width: 0%;
    }
}

@media (max-width: 768px) {
    .toast-container {
        top: 1rem;
        right: 1rem;
        left: 1rem;
        max-width: none;
    }
    
    .toast {
        min-width: auto;
    }
}
        flex-direction: column;
        align-items: flex-start;
    }

    .footer-links a {
        display: block;
        margin-bottom: var(--spacing-sm);
    }
    
    .container {
        padding: 0 1rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-md);
    }

    h1 { font-size: 1.5rem; }
    h2 { font-size: 1.25rem; }
    h3 { font-size: 1.125rem; }

    .btn {
        padding: 0.625rem 1rem;
        font-size: 0.9375rem;
    }
    
    table {
        font-size: 0.9rem;
    }
    
    th, td {
        padding: 0.75rem 0.5rem;
    }
}