/* ==================== CSS VARIABLES ==================== */
:root {
    /* Brand Colors */
    --brand: #1B0E54;
    --brand-600: #24126e;
    --brand-400: #4b3ca2;
    --accent: #00C2FF;
    
    /* Neutral Colors */
    --ink: #111218;
    --muted: #6B7280;
    --bg: #F7F8FC;
    --card: #FFFFFF;
    
    /* Border & Radius */
    --radius: 16px;
    --radius-sm: 8px;
    --radius-lg: 24px;
    
    /* Shadows - Premium Soft Shadows */
    --shadow-sm: 0 2px 8px rgba(27, 14, 84, 0.04);
    --shadow: 0 4px 16px rgba(27, 14, 84, 0.08);
    --shadow-lg: 0 8px 32px rgba(27, 14, 84, 0.12);
    --shadow-xl: 0 16px 48px rgba(27, 14, 84, 0.16);
    
    /* Spacing */
    --section-pad: 5rem;
    --section-pad-sm: 3rem;
    
    /* Typography - With Local Fallbacks */
    --font-heading: 'DM Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
    --font-accent: 'Quicksand', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
}

/* ==================== FONT FACE - LOCAL FALLBACKS ==================== */
@font-face {
    font-family: 'DM Sans Fallback';
    font-style: normal;
    font-weight: 400;
    src: local('Arial'), local('Helvetica Neue');
    ascent-override: 95%;
    descent-override: 25%;
    line-gap-override: 0%;
    size-adjust: 105%;
}

@font-face {
    font-family: 'Inter Fallback';
    font-style: normal;
    font-weight: 400;
    src: local('Arial'), local('Helvetica Neue');
    ascent-override: 90%;
    descent-override: 22%;
    line-gap-override: 0%;
    size-adjust: 107%;
}

@font-face {
    font-family: 'Quicksand Fallback';
    font-style: normal;
    font-weight: 400;
    src: local('Arial'), local('Helvetica Neue');
    ascent-override: 92%;
    descent-override: 20%;
    line-gap-override: 0%;
    size-adjust: 106%;
}

/* ==================== BASE RESET ==================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

*::before,
*::after {
    box-sizing: border-box;
}

/* ==================== BASE TYPOGRAPHY ==================== */
html {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
}

body {
    font-family: var(--font-body);
    color: var(--ink);
    background-color: var(--bg);
    line-height: 1.6;
    font-size: 1rem;
}

/* Headings */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
    color: var(--brand);
    margin-bottom: 1rem;
}

h1 { 
    font-size: 3.5rem; 
    letter-spacing: -0.02em;
}

h2 { 
    font-size: 2.5rem; 
    letter-spacing: -0.01em;
}

h3 { 
    font-size: 2rem; 
}

h4 { 
    font-size: 1.5rem; 
}

h5 { 
    font-size: 1.25rem; 
}

h6 { 
    font-size: 1rem; 
}

/* Paragraphs & Text */
p {
    margin-bottom: 1rem;
    color: var(--ink);
    line-height: 1.7;
}

a {
    color: var(--brand);
    transition: color 0.2s ease;
}

a:hover {
    color: var(--brand-600);
}

strong, b {
    font-weight: 600;
}

small {
    font-size: 0.875rem;
}

/* Lists */
ul, ol {
    margin-bottom: 1rem;
    padding-left: 1.5rem;
}

/* ==================== CONTAINER SYSTEM ==================== */
.container {
    width: 100%;
    max-width: 1240px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

.container-fluid {
    width: 100%;
    padding: 0 1.5rem;
}

.container-narrow {
    max-width: 960px;
}

.container-wide {
    max-width: 1440px;
}

/* ==================== RESPONSIVE BREAKPOINTS ==================== */
@media (max-width: 1240px) {
    .container {
        padding: 0 2rem;
    }
}

@media (max-width: 768px) {
    :root {
        --section-pad: 3rem;
        --section-pad-sm: 2rem;
    }
    
    h1 { 
        font-size: 2.5rem; 
    }
    
    h2 { 
        font-size: 2rem; 
    }
    
    h3 { 
        font-size: 1.75rem; 
    }
    
    h4 { 
        font-size: 1.25rem; 
    }
    
    .container {
        padding: 0 1.25rem;
    }
}

@media (max-width: 480px) {
    h1 { 
        font-size: 2rem; 
    }
    
    h2 { 
        font-size: 1.75rem; 
    }
}

/* ==================== ACCESSIBILITY ==================== */
:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}

/* Skip to main content */
.skip-to-main {
    position: absolute;
    left: -9999px;
    z-index: 999;
    padding: 1rem 1.5rem;
    background: var(--brand);
    color: white;
    text-decoration: none;
    border-radius: var(--radius);
}

.skip-to-main:focus {
    left: 1rem;
    top: 1rem;
}

/* Screen reader only */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

/* ==================== SMOOTH SCROLLING ==================== */
@media (prefers-reduced-motion: no-preference) {
    html {
        scroll-behavior: smooth;
    }
}

/* ==================== SELECTION ==================== */
::selection {
    background: var(--accent);
    color: var(--brand);
}

::-moz-selection {
    background: var(--accent);
    color: var(--brand);
}

/* ==================== BUTTONS ==================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    font-family: var(--font-body);
    font-size: 1rem;
    font-weight: 600;
    line-height: 1.5;
    text-decoration: none;
    border: none;
    border-radius: var(--radius);
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    white-space: nowrap;
}

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

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

.btn-primary:hover:not(:disabled) {
    background: var(--brand-600);
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

.btn-primary:active:not(:disabled) {
    transform: translateY(0);
}

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

.btn-secondary:hover:not(:disabled) {
    background: #00a8db;
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

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

.btn-outline:hover:not(:disabled) {
    background: var(--brand);
    color: white;
    box-shadow: var(--shadow);
}

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

.btn-ghost:hover:not(:disabled) {
    background: rgba(27, 14, 84, 0.05);
}

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

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

.btn-block {
    width: 100%;
}

/* ==================== CARDS ==================== */
.card {
    background: var(--card);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    overflow: hidden;
    transition: all 0.3s ease;
}

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

.card-body {
    padding: 1.5rem;
}

.card-header {
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid rgba(27, 14, 84, 0.08);
    font-weight: 600;
    color: var(--brand);
}

.card-footer {
    padding: 1.25rem 1.5rem;
    border-top: 1px solid rgba(27, 14, 84, 0.08);
    background: var(--bg);
}

.card-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--brand);
}

.card-text {
    color: var(--muted);
    line-height: 1.6;
}

.card-img-top {
    width: 100%;
    height: auto;
    display: block;
}

/* Card Variants */
.card-flat {
    box-shadow: none;
    border: 1px solid rgba(27, 14, 84, 0.08);
}

.card-elevated {
    box-shadow: var(--shadow-xl);
}

.card-brand {
    background: var(--brand);
    color: white;
}

.card-brand .card-title {
    color: white;
}

.card-brand .card-text {
    color: rgba(255, 255, 255, 0.9);
}

/* ==================== FORMS ==================== */
.form-group {
    margin-bottom: 1.5rem;
}

.form-label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--brand);
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.form-control {
    display: block;
    width: 100%;
    padding: 0.75rem 1rem;
    font-family: var(--font-body);
    font-size: 1rem;
    line-height: 1.5;
    color: var(--ink);
    background-color: var(--card);
    border: 2px solid rgba(27, 14, 84, 0.1);
    border-radius: var(--radius-sm);
    transition: all 0.2s ease;
}

.form-control:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(0, 194, 255, 0.1);
}

.form-control:disabled {
    background-color: var(--bg);
    opacity: 0.6;
    cursor: not-allowed;
}

.form-control::placeholder {
    color: var(--muted);
    opacity: 0.6;
}

/* Textarea */
textarea.form-control {
    min-height: 120px;
    resize: vertical;
}

/* Select */
select.form-control {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%231B0E54' d='M6 9L1 4h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    padding-right: 2.5rem;
}

/* Form Validation */
.form-control.is-valid {
    border-color: #10b981;
}

.form-control.is-invalid {
    border-color: #ef4444;
}

.valid-feedback {
    display: block;
    margin-top: 0.25rem;
    font-size: 0.875rem;
    color: #10b981;
}

.invalid-feedback {
    display: block;
    margin-top: 0.25rem;
    font-size: 0.875rem;
    color: #ef4444;
}

/* Checkbox & Radio */
.form-check {
    display: flex;
    align-items: center;
    margin-bottom: 0.75rem;
}

.form-check-input {
    width: 1.25rem;
    height: 1.25rem;
    margin-right: 0.5rem;
    cursor: pointer;
}

.form-check-label {
    cursor: pointer;
    user-select: none;
}

/* ==================== BADGES & TAGS ==================== */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.25rem 0.75rem;
    font-size: 0.75rem;
    font-weight: 600;
    line-height: 1;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-radius: 999px;
    white-space: nowrap;
}

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

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

.badge-success {
    background: #10b981;
    color: white;
}

.badge-warning {
    background: #f59e0b;
    color: white;
}

.badge-danger {
    background: #ef4444;
    color: white;
}

.badge-light {
    background: var(--bg);
    color: var(--brand);
}

.badge-outline {
    background: transparent;
    border: 1px solid var(--brand);
    color: var(--brand);
}

/* ==================== ALERTS ==================== */
.alert {
    padding: 1rem 1.5rem;
    margin-bottom: 1rem;
    border-radius: var(--radius);
    border-left: 4px solid;
    background: var(--card);
}

.alert-success {
    border-left-color: #10b981;
    background: rgba(16, 185, 129, 0.1);
    color: #065f46;
}

.alert-info {
    border-left-color: var(--accent);
    background: rgba(0, 194, 255, 0.1);
    color: var(--brand);
}

.alert-warning {
    border-left-color: #f59e0b;
    background: rgba(245, 158, 11, 0.1);
    color: #92400e;
}

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

.alert-title {
    font-weight: 700;
    margin-bottom: 0.25rem;
}

/* ==================== NAVIGATION ==================== */
.navbar {
    background: var(--card);
    box-shadow: var(--shadow);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
}

.navbar-brand {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--brand);
    text-decoration: none;
    transition: color 0.2s ease;
}

.navbar-brand:hover {
    color: var(--brand-600);
}

.navbar-nav {
    display: flex;
    align-items: center;
    gap: 2rem;
    list-style: none;
    margin: 0;
    padding: 0;
}

.nav-link {
    color: var(--ink);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s ease;
    position: relative;
}

.nav-link:hover,
.nav-link.active {
    color: var(--brand);
}

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -0.5rem;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--accent);
}

/* ==================== GRID SYSTEM ==================== */
.row {
    display: flex;
    flex-wrap: wrap;
    margin: 0 -0.75rem;
}

.col {
    flex: 1;
    padding: 0 0.75rem;
}

/* Column Sizes */
.col-1 { flex: 0 0 8.333333%; max-width: 8.333333%; }
.col-2 { flex: 0 0 16.666667%; max-width: 16.666667%; }
.col-3 { flex: 0 0 25%; max-width: 25%; }
.col-4 { flex: 0 0 33.333333%; max-width: 33.333333%; }
.col-5 { flex: 0 0 41.666667%; max-width: 41.666667%; }
.col-6 { flex: 0 0 50%; max-width: 50%; }
.col-7 { flex: 0 0 58.333333%; max-width: 58.333333%; }
.col-8 { flex: 0 0 66.666667%; max-width: 66.666667%; }
.col-9 { flex: 0 0 75%; max-width: 75%; }
.col-10 { flex: 0 0 83.333333%; max-width: 83.333333%; }
.col-11 { flex: 0 0 91.666667%; max-width: 91.666667%; }
.col-12 { flex: 0 0 100%; max-width: 100%; }

/* Responsive Grid */
@media (max-width: 768px) {
    .col-md-1 { flex: 0 0 8.333333%; max-width: 8.333333%; }
    .col-md-2 { flex: 0 0 16.666667%; max-width: 16.666667%; }
    .col-md-3 { flex: 0 0 25%; max-width: 25%; }
    .col-md-4 { flex: 0 0 33.333333%; max-width: 33.333333%; }
    .col-md-6 { flex: 0 0 50%; max-width: 50%; }
    .col-md-12 { flex: 0 0 100%; max-width: 100%; }
}

@media (max-width: 480px) {
    .col-sm-12 { flex: 0 0 100%; max-width: 100%; }
}

/* Gap Utilities */
.gap-1 { gap: 0.25rem; }
.gap-2 { gap: 0.5rem; }
.gap-3 { gap: 1rem; }
.gap-4 { gap: 1.5rem; }
.gap-5 { gap: 3rem; }

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

/* Spacing - Margin */
.m-0 { margin: 0; }
.m-1 { margin: 0.25rem; }
.m-2 { margin: 0.5rem; }
.m-3 { margin: 1rem; }
.m-4 { margin: 1.5rem; }
.m-5 { margin: 3rem; }
.m-auto { margin: auto; }

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: 0.25rem; }
.mt-2 { margin-top: 0.5rem; }
.mt-3 { margin-top: 1rem; }
.mt-4 { margin-top: 1.5rem; }
.mt-5 { margin-top: 3rem; }

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: 0.25rem; }
.mb-2 { margin-bottom: 0.5rem; }
.mb-3 { margin-bottom: 1rem; }
.mb-4 { margin-bottom: 1.5rem; }
.mb-5 { margin-bottom: 3rem; }

.ml-0 { margin-left: 0; }
.ml-1 { margin-left: 0.25rem; }
.ml-2 { margin-left: 0.5rem; }
.ml-3 { margin-left: 1rem; }
.ml-auto { margin-left: auto; }

.mr-0 { margin-right: 0; }
.mr-1 { margin-right: 0.25rem; }
.mr-2 { margin-right: 0.5rem; }
.mr-3 { margin-right: 1rem; }
.mr-auto { margin-right: auto; }

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

/* Spacing - Padding */
.p-0 { padding: 0; }
.p-1 { padding: 0.25rem; }
.p-2 { padding: 0.5rem; }
.p-3 { padding: 1rem; }
.p-4 { padding: 1.5rem; }
.p-5 { padding: 3rem; }

.pt-0 { padding-top: 0; }
.pt-1 { padding-top: 0.25rem; }
.pt-2 { padding-top: 0.5rem; }
.pt-3 { padding-top: 1rem; }
.pt-4 { padding-top: 1.5rem; }
.pt-5 { padding-top: 3rem; }

.pb-0 { padding-bottom: 0; }
.pb-1 { padding-bottom: 0.25rem; }
.pb-2 { padding-bottom: 0.5rem; }
.pb-3 { padding-bottom: 1rem; }
.pb-4 { padding-bottom: 1.5rem; }
.pb-5 { padding-bottom: 3rem; }

.px-3 { padding-left: 1rem; padding-right: 1rem; }
.py-3 { padding-top: 1rem; padding-bottom: 1rem; }
.py-5 { padding-top: 3rem; padding-bottom: 3rem; }

/* Display */
.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; }

/* Flexbox */
.flex-row { flex-direction: row; }
.flex-column { flex-direction: column; }
.flex-wrap { flex-wrap: wrap; }
.flex-nowrap { flex-wrap: nowrap; }

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

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

/* Text Alignment */
.text-left { text-align: left; }
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-justify { text-align: justify; }

/* Font Weight */
.font-light { font-weight: 300; }
.font-normal { font-weight: 400; }
.font-medium { font-weight: 500; }
.font-semibold { font-weight: 600; }
.font-bold { font-weight: 700; }

/* Text Transform */
.text-uppercase { text-transform: uppercase; }
.text-lowercase { text-transform: lowercase; }
.text-capitalize { text-transform: capitalize; }

/* Colors */
.text-brand { color: var(--brand); }
.text-accent { color: var(--accent); }
.text-muted { color: var(--muted); }
.text-ink { color: var(--ink); }
.text-white { color: white; }

.bg-brand { background-color: var(--brand); }
.bg-accent { background-color: var(--accent); }
.bg-bg { background-color: var(--bg); }
.bg-card { background-color: var(--card); }
.bg-white { background-color: white; }

/* Border */
.border { border: 1px solid rgba(27, 14, 84, 0.1); }
.border-0 { border: 0; }
.border-top { border-top: 1px solid rgba(27, 14, 84, 0.1); }
.border-bottom { border-bottom: 1px solid rgba(27, 14, 84, 0.1); }

.rounded { border-radius: var(--radius); }
.rounded-sm { border-radius: var(--radius-sm); }
.rounded-lg { border-radius: var(--radius-lg); }
.rounded-full { border-radius: 9999px; }

/* Shadow */
.shadow-none { box-shadow: none; }
.shadow-sm { box-shadow: var(--shadow-sm); }
.shadow { box-shadow: var(--shadow); }
.shadow-lg { box-shadow: var(--shadow-lg); }
.shadow-xl { box-shadow: var(--shadow-xl); }

/* Width & Height */
.w-100 { width: 100%; }
.w-75 { width: 75%; }
.w-50 { width: 50%; }
.w-25 { width: 25%; }
.w-auto { width: auto; }

.h-100 { height: 100%; }
.h-auto { height: auto; }

/* Position */
.position-relative { position: relative; }
.position-absolute { position: absolute; }
.position-fixed { position: fixed; }
.position-sticky { position: sticky; }

/* Overflow */
.overflow-hidden { overflow: hidden; }
.overflow-auto { overflow: auto; }
.overflow-scroll { overflow: scroll; }

/* Cursor */
.cursor-pointer { cursor: pointer; }
.cursor-not-allowed { cursor: not-allowed; }

/* User Select */
.select-none { user-select: none; }
.select-text { user-select: text; }
.select-all { user-select: all; }

/* Visibility */
.invisible { visibility: hidden; }
.visible { visibility: visible; }

/* Opacity */
.opacity-0 { opacity: 0; }
.opacity-25 { opacity: 0.25; }
.opacity-50 { opacity: 0.5; }
.opacity-75 { opacity: 0.75; }
.opacity-100 { opacity: 1; }

/* Z-Index */
.z-0 { z-index: 0; }
.z-10 { z-index: 10; }
.z-20 { z-index: 20; }
.z-30 { z-index: 30; }
.z-40 { z-index: 40; }
.z-50 { z-index: 50; }

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

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

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

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

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

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* Animation Utilities */
.animate-fadeIn { animation: fadeIn 0.5s ease-in; }
.animate-fadeInUp { animation: fadeInUp 0.6s ease-out; }
.animate-fadeInDown { animation: fadeInDown 0.6s ease-out; }
.animate-slideInLeft { animation: slideInLeft 0.6s ease-out; }
.animate-slideInRight { animation: slideInRight 0.6s ease-out; }
.animate-pulse { animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite; }
.animate-spin { animation: spin 1s linear infinite; }

/* ==================== RESPONSIVE UTILITIES ==================== */
@media (max-width: 768px) {
    .d-md-none { display: none; }
    .d-md-block { display: block; }
    .d-md-flex { display: flex; }
    
    .text-md-center { text-align: center; }
    
    .navbar-nav {
        flex-direction: column;
        gap: 1rem;
    }
}

@media (max-width: 480px) {
    .d-sm-none { display: none; }
    .d-sm-block { display: block; }
    
    .text-sm-center { text-align: center; }
}