/* FindNext - Main Stylesheet */
/* Global styles, CSS variables, typography, components, and responsive utilities */
/* This file contains the foundation styles used across all pages */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&display=swap');

/* Reset & Base Styles */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Modern Color Palette */
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --primary-light: #3b82f6;
    --secondary: #0ea5e9;
    --accent: #f97316;
    --success: #10b981;
    --danger: #ef4444;
    --warning: #f59e0b;
    --info: #06b6d4;

    /* Neutral Colors */
    --dark: #0f172a;
    --dark-light: #1e293b;
    --gray: #64748b;
    --gray-light: #cbd5e1;
    --light: #f8fafc;
    --white: #ffffff;

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

    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);

    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition: 300ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    min-height: 100vh;
    margin: 0;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--light);
    color: var(--dark);
    line-height: 1.6;
    display: flex;
    flex-direction: column;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

main {
    flex: 1 0 auto;
    position: relative;
    min-height: 60vh;
    padding-bottom: 3rem;
}

/* TYPOGRAPHY */
h1, h2, h3, h4, h5, h6 {
    margin: 0 0 1rem 0;
    font-weight: 700;
    line-height: 1.2;
    color: var(--dark);
    letter-spacing: -0.025em;
}

h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 800;
}

h2 {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
}

h3 {
    font-size: clamp(1.5rem, 3vw, 2rem);
    font-weight: 600;
}

h4 { font-size: 1.5rem; }
h5 { font-size: 1.25rem; }
h6 { font-size: 1.125rem; }

p {
    margin-bottom: 1rem;
    line-height: 1.7;
    color: var(--gray);
}

.lead {
    font-size: 1.25rem;
    font-weight: 400;
    line-height: 1.8;
    color: var(--gray);
}

.text-gradient {
    background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* CONTAINER & LAYOUT */
.container {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.container-sm {
    max-width: 640px;
}

.container-md {
    max-width: 768px;
}

.container-lg {
    max-width: 1024px;
}

.section {
    padding: var(--spacing-xl) 0;
}

.section-lg {
    padding: calc(var(--spacing-xl) * 2) 0;
}

/* Grid System */
.row {
    display: flex;
    flex-wrap: wrap;
    margin: 0 calc(var(--spacing-sm) * -1);
}

.col {
    flex: 1;
    padding: 0 var(--spacing-sm);
}

.col-1 { flex: 0 0 8.333%; max-width: 8.333%; padding: 0 var(--spacing-sm); }
.col-2 { flex: 0 0 16.666%; max-width: 16.666%; padding: 0 var(--spacing-sm); }
.col-3 { flex: 0 0 25%; max-width: 25%; padding: 0 var(--spacing-sm); }
.col-4 { flex: 0 0 33.333%; max-width: 33.333%; padding: 0 var(--spacing-sm); }
.col-5 { flex: 0 0 41.666%; max-width: 41.666%; padding: 0 var(--spacing-sm); }
.col-6 { flex: 0 0 50%; max-width: 50%; padding: 0 var(--spacing-sm); }
.col-7 { flex: 0 0 58.333%; max-width: 58.333%; padding: 0 var(--spacing-sm); }
.col-8 { flex: 0 0 66.666%; max-width: 66.666%; padding: 0 var(--spacing-sm); }
.col-9 { flex: 0 0 75%; max-width: 75%; padding: 0 var(--spacing-sm); }
.col-10 { flex: 0 0 83.333%; max-width: 83.333%; padding: 0 var(--spacing-sm); }
.col-11 { flex: 0 0 91.666%; max-width: 91.666%; padding: 0 var(--spacing-sm); }
.col-12 { flex: 0 0 100%; max-width: 100%; padding: 0 var(--spacing-sm); }

/* NAVIGATION */
.navbar {
    background: var(--white);
    border-bottom: 1px solid var(--gray-light);
    padding: var(--spacing-sm) 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.navbar.scrolled {
    box-shadow: var(--shadow-md);
}

.navbar-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.navbar-brand {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--dark);
    text-decoration: none;
    transition: var(--transition);
}

.navbar-brand i {
    color: var(--primary);
}

.navbar-brand:hover {
    color: var(--primary);
}

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

.navbar-menu a {
    color: var(--gray);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    padding: 0.5rem var(--spacing-sm);
    border-radius: var(--radius-md);
    position: relative;
}

.navbar-menu a:hover {
    color: var(--primary);
    background: var(--light);
}

.navbar-menu a.active {
    color: var(--primary);
    font-weight: 600;
}

.navbar-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--dark);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0.5rem;
}

/* BUTTONS */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
    font-weight: 600;
    font-family: inherit;
    text-align: center;
    text-decoration: none;
    border: 2px solid transparent;
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    pointer-events: none;
}

.btn i {
    font-size: 1.125rem;
}

/* Button Variants */
.btn-primary {
    background: var(--primary);
    color: var(--white);
    box-shadow: var(--shadow);
}

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

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

.btn-secondary:hover {
    background: #7c3aed;
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

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

.btn-success:hover {
    background: #059669;
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

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

.btn-danger:hover {
    background: #dc2626;
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

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

.btn-warning:hover {
    background: #d97706;
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

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

.btn-info:hover {
    background: #0891b2;
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

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

.btn-outline:hover {
    background: var(--primary);
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-ghost {
    background: transparent;
    color: var(--gray);
}

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

/* Button Sizes */
.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1.125rem;
}

.btn-xl {
    padding: 1.25rem 2.5rem;
    font-size: 1.25rem;
}

.btn-block {
    width: 100%;
}

.btn-icon {
    width: 2.5rem;
    height: 2.5rem;
    padding: 0;
    border-radius: var(--radius-full);
}

/* FORMS */
.form-group {
    margin-bottom: var(--spacing-md);
}

.form-label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-weight: 600;
    color: var(--dark);
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.form-control,
.form-select {
    width: 100%;
    padding: 0.75rem 1rem;
    font-size: 1rem;
    font-family: inherit;
    border: 2px solid var(--gray-light);
    border-radius: var(--radius-lg);
    background: var(--white);
    color: var(--dark);
    transition: var(--transition);
}

.form-control:focus,
.form-select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.form-control::placeholder {
    color: var(--gray);
}

.form-select {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='%2364748b' viewBox='0 0 16 16'%3E%3Cpath d='M7.247 11.14 2.451 5.658C1.885 5.013 2.345 4 3.204 4h9.592a1 1 0 0 1 .753 1.659l-4.796 5.48a1 1 0 0 1-1.506 0z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    padding-right: 3rem;
}

.form-select option {
    background: var(--white);
    color: var(--dark);
}

.form-control-icon {
    position: relative;
}

.form-control-icon i {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--gray);
}

.form-control-icon .form-control {
    padding-left: 3rem;
}

/* CARDS */
.card {
    background: var(--white);
    border: 1px solid var(--gray-light);
    border-radius: var(--radius-xl);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

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

.card-header {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-md);
    border-bottom: 2px solid var(--gray-light);
    color: var(--dark);
}

.card-body {
    padding: var(--spacing-sm) 0;
}

.card-footer {
    margin-top: var(--spacing-md);
    padding-top: var(--spacing-md);
    border-top: 2px solid var(--gray-light);
    display: flex;
    gap: var(--spacing-sm);
    align-items: center;
}

/* Feature Card */
.feature-card {
    background: var(--white);
    border: 2px solid var(--gray-light);
    border-radius: var(--radius-2xl);
    padding: var(--spacing-xl);
    text-align: center;
    transition: var(--transition);
    height: 100%;
}

.feature-card:hover {
    transform: translateY(-8px);
    border-color: var(--primary);
    box-shadow: var(--shadow-xl);
}

.feature-card i {
    font-size: 3rem;
    color: var(--primary);
    margin-bottom: var(--spacing-md);
    display: inline-block;
    transition: var(--transition);
}

.feature-card:hover i {
    transform: scale(1.1);
}

.feature-card h4 {
    color: var(--dark);
    margin-bottom: var(--spacing-sm);
}

.feature-card p {
    color: var(--gray);
    font-size: 0.95rem;
}

/* Job Card */
.job-card {
    background: var(--white);
    border: 2px solid var(--gray-light);
    border-radius: var(--radius-xl);
    padding: var(--spacing-lg);
    position: relative;
    transition: var(--transition);
    height: 100%;
    margin-bottom: 2rem;
}

.job-card:hover {
    transform: translateY(-4px);
    border-color: var(--primary);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
}

.job-card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--spacing-md);
}

.job-title {
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--dark);
    margin-bottom: 0.25rem;
    line-height: 1.4;
    word-wrap: break-word;
    overflow-wrap: break-word;
}

.job-company {
    color: var(--gray);
    font-size: 0.9rem;
}

.job-meta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin: var(--spacing-md) 0;
    font-size: 0.875rem;
    color: var(--gray);
}

.job-meta-item {
    display: flex;
    align-items: center;
    gap: 0.35rem;
}

.job-meta-item i {
    color: var(--primary);
}

.match-score {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    background: linear-gradient(135deg, var(--primary), var(--accent));
    color: var(--white);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-full);
    font-weight: 700;
    font-size: 0.875rem;
    box-shadow: var(--shadow-md);
}

/* MODALS */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(15, 23, 42, 0.75);
    backdrop-filter: blur(4px);
    z-index: 2000;
    overflow-y: auto;
}

.modal.show {
    display: flex;
    align-items: center;
    justify-content: center;
    animation: fadeIn 0.2s ease;
}

.modal-dialog {
    width: 90%;
    max-width: 600px;
    margin: var(--spacing-xl) auto;
    animation: slideUp 0.3s ease;
}

.modal-content {
    background: var(--white);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-xl);
    overflow: hidden;
}

.modal-header {
    padding: var(--spacing-lg);
    border-bottom: 2px solid var(--gray-light);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--light);
}

.modal-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--dark);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.modal-title i {
    color: var(--primary);
}

.modal-close {
    background: transparent;
    border: none;
    color: var(--gray);
    font-size: 1.5rem;
    cursor: pointer;
    width: 2.5rem;
    height: 2.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-full);
    transition: var(--transition);
}

.modal-close:hover {
    background: var(--gray-light);
    color: var(--dark);
}

.modal-body {
    padding: var(--spacing-lg);
    max-height: 70vh;
    overflow-y: auto;
}

.modal-footer {
    padding: var(--spacing-lg);
    border-top: 2px solid var(--gray-light);
    display: flex;
    gap: var(--spacing-sm);
    justify-content: flex-end;
    background: var(--light);
}

/* ALERTS */
.alert {
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-md);
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
    border-left: 4px solid;
    animation: slideIn 0.3s ease;
}

.alert i {
    font-size: 1.25rem;
    margin-top: 0.125rem;
}

.alert-close {
    margin-left: auto;
    background: none;
    border: none;
    color: inherit;
    font-size: 1.25rem;
    cursor: pointer;
    opacity: 0.7;
    transition: var(--transition);
    padding: 0.25rem;
}

.alert-close:hover {
    opacity: 1;
}

.alert-success {
    background: rgba(16, 185, 129, 0.1);
    border-color: var(--success);
    color: #065f46;
}

.alert-success i {
    color: var(--success);
}

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

.alert-danger i {
    color: var(--danger);
}

.alert-warning {
    background: rgba(245, 158, 11, 0.1);
    border-color: var(--warning);
    color: #92400e;
}

.alert-warning i {
    color: var(--warning);
}

.alert-info {
    background: rgba(6, 182, 212, 0.1);
    border-color: var(--info);
    color: #164e63;
}

.alert-info i {
    color: var(--info);
}

/* TABLES */
.table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    margin: var(--spacing-md) 0;
}

.table thead {
    background: var(--light);
}

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

.table th {
    font-weight: 600;
    color: var(--dark);
    text-transform: uppercase;
    font-size: 0.875rem;
    letter-spacing: 0.05em;
}

.table tr:hover {
    background: var(--light);
}

.table tr:last-child td {
    border-bottom: none;
}

/* BADGES */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    padding: 0.35rem 0.75rem;
    font-size: 0.875rem;
    font-weight: 600;
    border-radius: var(--radius-full);
    text-align: center;
}

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

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

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

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

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

/* HERO SECTION */
.hero {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: var(--white);
    padding: calc(var(--spacing-xl) * 2) 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    opacity: 0.5;
}

.hero-content {
    position: relative;
    z-index: 1;
}

.hero h1 {
    color: var(--white);
    margin-bottom: var(--spacing-md);
}

.hero p {
    font-size: 1.25rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: var(--spacing-xl);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero .btn {
    margin: 0.5rem;
}

/* STATS SECTION */
.stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-lg);
    margin: var(--spacing-xl) 0;
}

.stat-card {
    background: var(--white);
    padding: var(--spacing-lg);
    border-radius: var(--radius-xl);
    text-align: center;
    box-shadow: var(--shadow-md);
    border: 2px solid var(--gray-light);
    transition: var(--transition);
}

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

.stat-number {
    font-size: 3rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: 1rem;
    color: var(--gray);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* FOOTER */
footer {
    background: var(--dark);
    color: var(--gray-light);
    padding: var(--spacing-xl) 0 var(--spacing-lg);
    margin-top: 4rem;
    flex-shrink: 0;
    position: relative;
    width: 100%;
}

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

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

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

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

.footer-section a {
    color: var(--gray-light);
    text-decoration: none;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

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

.footer-bottom {
    border-top: 1px solid var(--dark-light);
    padding-top: var(--spacing-md);
    text-align: center;
    color: var(--gray);
}

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

.social-links a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 2.5rem;
    height: 2.5rem;
    border-radius: var(--radius-full);
    background: var(--dark-light);
    color: var(--gray-light);
    transition: var(--transition);
}

.social-links a:hover {
    background: var(--primary);
    color: var(--white);
    transform: translateY(-2px);
}

/* UTILITIES */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.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); }

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

.px-2 { padding-left: var(--spacing-sm); padding-right: var(--spacing-sm); }
.px-3 { padding-left: var(--spacing-md); padding-right: var(--spacing-md); }
.px-4 { padding-left: var(--spacing-lg); padding-right: var(--spacing-lg); }

.d-flex { display: flex; }
.flex-wrap { flex-wrap: wrap; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.align-center { align-items: center; }
.gap-1 { gap: var(--spacing-xs); }
.gap-2 { gap: var(--spacing-sm); }
.gap-3 { gap: var(--spacing-md); }

.hidden { display: none; }
.block { display: block; }
.inline-block { display: inline-block; }

.clearfix::after {
    content: "";
    display: table;
    clear: both;
}

.overflow-hidden { overflow: hidden; }
.overflow-auto { overflow: auto; }

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

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

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(-20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.fade-in {
    animation: fadeIn 0.5s ease;
}

.slide-up {
    animation: slideUp 0.5s ease;
}

/* COMPREHENSIVE RESPONSIVE DESIGN FOR ALL PAGES */

/* ========== MOBILE PHONES (up to 576px) ========== */
@media (max-width: 576px) {
    /* Base Container */
    .container {
        padding: 0 0.75rem;
        max-width: 100%;
    }

    /* Navigation */
    .navbar {
        padding: 0.5rem 0;
    }

    .navbar-brand {
        font-size: 1.1rem;
    }

    .navbar-toggle {
        display: block;
    }

    .navbar-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--white);
        flex-direction: column;
        box-shadow: 0 4px 12px rgba(0,0,0,0.15);
        z-index: 1000;
        padding: 0.5rem 0;
    }

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

    .navbar-menu a {
        padding: 0.75rem 1rem;
        border-bottom: 1px solid var(--gray-light);
    }

    /* Typography */
    h1 { font-size: 1.5rem; }
    h2 { font-size: 1.25rem; }
    h3 { font-size: 1.1rem; }
    h4 { font-size: 1rem; }
    h5 { font-size: 0.9rem; }

    /* Buttons */
    .btn {
        padding: 0.5rem 1rem;
        font-size: 0.85rem;
        width: 100%;
        margin-bottom: 0.5rem;
    }

    .btn-group {
        flex-direction: column;
        gap: 0.5rem;
    }

    /* Grid System */
    .row {
        flex-direction: column;
    }

    .col, .col-1, .col-2, .col-3, .col-4, .col-5, .col-6,
    .col-7, .col-8, .col-9, .col-10, .col-11, .col-12 {
        flex: 0 0 100%;
        max-width: 100%;
        margin-bottom: 0.75rem;
    }

    /* Hero Section */
    .hero {
        padding: 2rem 0;
        text-align: center;
    }

    .hero h1 {
        font-size: 1.5rem;
        line-height: 1.3;
    }

    .hero p {
        font-size: 0.85rem;
    }

    .hero .btn {
        width: 100%;
        margin: 0.25rem 0;
    }

    /* Cards */
    .glass-card,
    .card {
        padding: 0.75rem;
        margin-bottom: 0.75rem;
    }

    /* Forms */
    .form-group {
        margin-bottom: 0.75rem;
    }

    .form-control,
    .form-select {
        font-size: 0.9rem;
        padding: 0.5rem;
    }

    .form-row {
        flex-direction: column;
    }

    .form-row .form-group {
        width: 100%;
    }

    /* Dashboard */
    .d-flex.justify-between {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.75rem;
    }

    /* Tables */
    .table-responsive {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }

    table {
        font-size: 0.75rem;
        min-width: 600px;
    }

    table th,
    table td {
        padding: 0.5rem 0.25rem;
    }

    .table-actions {
        flex-direction: column;
        gap: 0.25rem;
    }

    .table-actions .btn {
        width: 100%;
        font-size: 0.75rem;
        padding: 0.4rem 0.5rem;
    }

    /* Modals - Mobile Optimized */
    .modal {
        align-items: flex-start;
        padding: 0;
    }

    .modal-dialog {
        width: 100%;
        max-width: 100%;
        margin: 0;
        min-height: 100vh;
        display: flex;
        align-items: center;
    }

    .modal-content {
        width: 100%;
        max-height: 100vh;
        margin: 0;
        border-radius: 0;
        display: flex;
        flex-direction: column;
    }

    .modal-header {
        padding: 1rem;
        flex-shrink: 0;
    }

    .modal-header h4,
    .modal-header h5,
    .modal-title {
        font-size: 1.1rem;
    }

    .modal-body {
        padding: 1rem;
        max-height: none;
        overflow-y: auto;
        flex: 1 1 auto;
    }

    .modal-footer {
        padding: 1rem;
        flex-shrink: 0;
        flex-wrap: nowrap;
        gap: 0.5rem;
    }

    .modal-footer .btn {
        flex: 1;
        padding: 0.875rem 1rem;
        font-size: 0.9rem;
    }

    /* Alert in Modal */
    .modal-body .alert {
        padding: 0.875rem;
        font-size: 0.875rem;
    }

    .modal-body .alert ul {
        font-size: 0.85rem;
        margin-top: 0.5rem;
    }

    /* Form elements in Modal */
    .modal-body .form-group {
        margin-bottom: 1rem;
    }

    .modal-body .form-label {
        font-size: 0.9rem;
        margin-bottom: 0.5rem;
    }

    .modal-body .form-control {
        font-size: 1rem;
        padding: 0.75rem;
    }

    .modal-body small {
        font-size: 0.8rem;
    }

    /* Auth Pages */
    .auth-card {
        padding: 1rem;
    }

    .auth-container {
        padding: 0.5rem;
    }

    /* Stats Grid */
    .stats-grid {
        grid-template-columns: 1fr;
        gap: 0.75rem;
    }

    .stat-card {
        padding: 1rem;
    }

    /* Footer */
    .footer-content {
        grid-template-columns: 1fr;
        gap: 1.5rem;
        text-align: center;
    }

    .footer-section {
        margin-bottom: 1rem;
    }

    /* Feature Cards */
    .feature-card {
        padding: 1rem;
        margin-bottom: 1rem;
    }

    .feature-card i {
        font-size: 2rem;
    }
}

/* ========== MOBILE LANDSCAPE & SMALL TABLETS (577px to 768px) ========== */
@media (min-width: 577px) and (max-width: 768px) {
    .container {
        padding: 0 1rem;
    }

    h1 { font-size: 1.75rem; }
    h2 { font-size: 1.5rem; }

    .btn {
        width: auto;
        min-width: 120px;
    }

    .col-4,
    .col-3 {
        flex: 0 0 50%;
        max-width: 50%;
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .footer-content {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* ========== TABLETS (769px to 1024px) ========== */
@media (min-width: 769px) and (max-width: 1024px) {
    .container {
        max-width: 960px;
        padding: 0 1.5rem;
    }

    h1 { font-size: 2rem; }
    h2 { font-size: 1.75rem; }

    .col-3 {
        flex: 0 0 50%;
        max-width: 50%;
    }

    .col-4 {
        flex: 0 0 33.333%;
        max-width: 33.333%;
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .footer-content {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* ========== SMALL DESKTOPS (1025px to 1199px) ========== */
@media (min-width: 1025px) and (max-width: 1199px) {
    .container {
        max-width: 1140px;
    }

    .col-3 {
        flex: 0 0 33.333%;
        max-width: 33.333%;
    }

    .col-4 {
        flex: 0 0 33.333%;
        max-width: 33.333%;
    }
}

/* ========== MOBILE-SPECIFIC FIXES ========== */
@media (max-width: 768px) {
    /* Buttons - Keep compact on mobile */
    .btn,
    .btn-primary,
    .btn-secondary,
    .btn-success,
    .btn-danger,
    .btn-warning,
    .btn-info,
    .btn-outline,
    .btn-ghost,
    .btn-white,
    .btn-outline-white {
        width: auto;
        max-width: fit-content;
        padding: 0.625rem 1.25rem;
        font-size: 0.875rem;
    }

    .btn-sm {
        padding: 0.5rem 1rem;
        font-size: 0.8125rem;
    }

    .btn-lg {
        padding: 0.75rem 1.5rem;
        font-size: 1rem;
    }

    .btn-xl {
        padding: 0.875rem 1.75rem;
        font-size: 1.125rem;
    }

    /* Full width button utility class */
    .btn-block {
        width: 100%;
        max-width: 100%;
    }

    /* Mobile visibility utilities */
    .hide-mobile {
        display: none;
    }

    .show-mobile {
        display: block;
    }
}