/* StickLink Unified Theme CSS */
:root {
    --primary-neon: #ff6ec7;
    --secondary-neon: #7873f5;
    --background-dark: #121212;
    --background-card: #1e1e1e;
    --background-sidebar: #1a1a1a;
    --text-light: #f0f0f0;
    --text-muted: #cccccc;
    --text-dark: #333333;
    --border-color: #333333;
    --neon-glow: 0 0 20px var(--primary-neon);
    --card-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --border-radius: 12px;
    --border-radius-lg: 16px;
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --font-family: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

/* Reset and Base Styles */
* { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; scroll-behavior: smooth; }
body { 
    font-family: var(--font-family);
    background: var(--background-dark);
    color: var(--text-light);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}
.sticklink-app { min-height: 100vh; display: flex; flex-direction: column; }

/* Typography */
h1, h2, h3, h4, h5, h6 { 
    font-weight: 600; 
    line-height: 1.2; 
    margin-bottom: var(--spacing-sm);
    color: var(--text-light);
}
h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }
h5 { font-size: 1.125rem; }
h6 { font-size: 1rem; }
p { margin-bottom: var(--spacing-md); }
a { color: var(--primary-neon); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--secondary-neon); text-shadow: var(--neon-glow); }

/* Layout */
.container { max-width: 1200px; margin: 0 auto; padding: 0 var(--spacing-md); }
.container-fluid { padding: 0 var(--spacing-md); }
.row { display: flex; flex-wrap: wrap; margin: 0 -var(--spacing-sm); }
.col { flex: 1; padding: 0 var(--spacing-sm); }
.col-lg-1 { flex: 0 0 8.333333%; }
.col-lg-2 { flex: 0 0 16.666667%; }
.col-lg-3 { flex: 0 0 25%; }
.col-lg-4 { flex: 0 0 33.333333%; }
.col-lg-6 { flex: 0 0 50%; }
.col-lg-8 { flex: 0 0 66.666667%; }
.col-lg-9 { flex: 0 0 75%; }
.col-lg-12 { flex: 0 0 100%; }
@media (max-width: 991px) {
    .col-lg-1, .col-lg-2, .col-lg-3, .col-lg-4, .col-lg-6, .col-lg-8, .col-lg-9, .col-lg-12 { flex: 0 0 100%; }
}

/* Navigation */
.navbar { 
    background: var(--background-card);
    border-bottom: 1px solid var(--border-color);
    padding: var(--spacing-md) 0;
    box-shadow: var(--card-shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
}
.navbar-brand { 
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-neon);
    text-shadow: var(--neon-glow);
}
.navbar-nav {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
    gap: var(--spacing-lg);
}

/* Ensure mobile nav takes precedence */
@media (max-width: 768px) {
    .navbar-nav {
        /* Mobile styles overridden by navigation component */
    }
}
.navbar-nav .nav-link { 
    color: var(--text-muted);
    font-weight: 500;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius);
    transition: var(--transition);
}
.navbar-nav .nav-link:hover,
.navbar-nav .nav-link.active { 
    color: var(--primary-neon);
    background: rgba(255, 110, 199, 0.1);
    text-shadow: var(--neon-glow);
}
.navbar-nav .nav-link i { margin-right: var(--spacing-xs); }

/* Main Content */
.main-content { 
    flex: 1;
    padding: var(--spacing-xl) 0;
}
.page-header { 
    text-align: center;
    margin-bottom: var(--spacing-xl);
}
.page-header h1 { 
    background: linear-gradient(45deg, var(--primary-neon), var(--secondary-neon));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--spacing-sm);
}
.page-header p { 
    color: var(--text-muted);
    font-size: 1.125rem;
}

/* Cards */
.card, .theme-card { 
    background: var(--background-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--card-shadow);
    margin-bottom: var(--spacing-lg);
    overflow: hidden;
    transition: var(--transition);
}
.card:hover, .theme-card:hover { 
    transform: translateY(-4px);
    box-shadow: 0 16px 48px rgba(0, 0, 0, 0.4);
}
.card-header { 
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
    background: linear-gradient(135deg, rgba(255, 110, 199, 0.1), rgba(120, 115, 245, 0.1));
}
.card-header h3 { 
    color: var(--primary-neon);
    margin: 0;
    font-size: 1.25rem;
}
.card-body { 
    padding: var(--spacing-lg);
}

/* Buttons */
.btn { 
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-sm) var(--spacing-lg);
    border: 2px solid transparent;
    border-radius: var(--border-radius);
    font-weight: 500;
    text-decoration: none;
    transition: var(--transition);
    cursor: pointer;
    font-size: 1rem;
    line-height: 1.5;
    min-height: 44px;
}
.btn i { margin-right: var(--spacing-xs); }
.btn-primary { 
    background: linear-gradient(45deg, var(--primary-neon), var(--secondary-neon));
    color: white;
    border-color: var(--primary-neon);
}
.btn-primary:hover { 
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(255, 110, 199, 0.4);
    color: white;
}
.btn-secondary { 
    background: transparent;
    color: var(--text-muted);
    border-color: var(--border-color);
}
.btn-secondary:hover { 
    color: var(--primary-neon);
    border-color: var(--primary-neon);
    background: rgba(255, 110, 199, 0.1);
}
.btn-danger { 
    background: #dc3545;
    color: white;
    border-color: #dc3545;
}
.btn-success { 
    background: #28a745;
    color: white;
    border-color: #28a745;
}
.btn-block { width: 100%; }
.btn-sm { 
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: 0.875rem;
    min-height: 36px;
}
.btn-lg { 
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: 1.125rem;
    min-height: 52px;
}

/* Forms */
.form-group { margin-bottom: var(--spacing-lg); }
.form-label { 
    display: block;
    margin-bottom: var(--spacing-xs);
    color: var(--text-light);
    font-weight: 500;
}
.form-control { 
    display: block;
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    background: var(--background-dark);
    color: var(--text-light);
    font-size: 1rem;
    transition: var(--transition);
}
.form-control:focus { 
    outline: none;
    border-color: var(--primary-neon);
    box-shadow: 0 0 0 3px rgba(255, 110, 199, 0.2);
}
.form-control::placeholder { color: var(--text-muted); }
select.form-control { 
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%23999' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='M6 8l4 4 4-4'/%3e%3c/svg%3e");
    background-position: right 0.5rem center;
    background-repeat: no-repeat;
    background-size: 1.5em 1.5em;
    padding-right: 2.5rem;
}
.form-control:invalid { border-color: #dc3545; }
.form-control:valid { border-color: #28a745; }

/* Enhanced Form Styling for App-like Experience */
.form-field { 
    position: relative; 
    margin-bottom: var(--spacing-lg);
}

.form-floating { 
    position: relative;
}

.form-floating .form-control {
    padding: 1rem 0.75rem 0.5rem;
    height: calc(3.5rem + 2px);
    line-height: 1.25;
}

.form-floating .form-label {
    position: absolute;
    top: 0;
    left: 0.75rem;
    padding: 1rem 0 0;
    pointer-events: none;
    transform-origin: 0 0;
    transition: opacity 0.1s ease-in-out, transform 0.1s ease-in-out;
    margin-bottom: 0;
    color: var(--text-muted);
    font-size: 0.875rem;
}

.form-floating .form-control:focus ~ .form-label,
.form-floating .form-control:not(:placeholder-shown) ~ .form-label {
    opacity: 0.65;
    transform: scale(0.85) translateY(-0.5rem) translateX(0.15rem);
    color: var(--primary-neon);
}

.input-group {
    position: relative;
    display: flex;
    flex-wrap: wrap;
    align-items: stretch;
    width: 100%;
}

.input-group .form-control {
    position: relative;
    flex: 1 1 auto;
    width: 1%;
    min-width: 0;
}

.input-group-text {
    display: flex;
    align-items: center;
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: 1rem;
    font-weight: 400;
    line-height: 1.5;
    color: var(--text-muted);
    text-align: center;
    white-space: nowrap;
    background-color: var(--background-card);
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
}

.input-group:not(.has-validation) > :not(:last-child):not(.dropdown-toggle):not(.dropdown-menu) {
    border-top-right-radius: 0;
    border-bottom-right-radius: 0;
    border-right: 0;
}

.input-group > :not(:first-child):not(.dropdown-menu):not(.valid-tooltip):not(.valid-feedback):not(.invalid-tooltip):not(.invalid-feedback) {
    margin-left: 0;
    border-top-left-radius: 0;
    border-bottom-left-radius: 0;
}

.form-control:focus,
.input-group .form-control:focus {
    z-index: 3;
    border-color: var(--primary-neon);
    outline: 0;
    box-shadow: 0 0 0 0.25rem rgba(255, 110, 199, 0.25);
}

.input-group:focus-within .input-group-text {
    border-color: var(--primary-neon);
    background-color: rgba(255, 110, 199, 0.1);
}

/* Enhanced Dropdown Styling */
.form-select {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3e%3cpath fill='none' stroke='%23f0f0f0' stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M2 5l6 6 6-6'/%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right 0.75rem center;
    background-size: 16px 12px;
    padding-right: 2.5rem;
    appearance: none;
    cursor: pointer;
}

.form-select:focus {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3e%3cpath fill='none' stroke='%23ff6ec7' stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M2 5l6 6 6-6'/%3e%3c/svg%3e");
}

/* Custom Checkbox and Radio Styling */
.form-check {
    display: block;
    min-height: 1.5rem;
    padding-left: 1.5em;
    margin-bottom: 0.125rem;
}

.form-check-input {
    width: 1em;
    height: 1em;
    margin-top: 0.25em;
    margin-left: -1.5em;
    vertical-align: top;
    background-color: var(--background-dark);
    background-repeat: no-repeat;
    background-position: center;
    background-size: contain;
    border: 2px solid var(--border-color);
    appearance: none;
    color-adjust: exact;
    transition: var(--transition);
    cursor: pointer;
}

.form-check-input[type="checkbox"] {
    border-radius: 0.25em;
}

.form-check-input[type="radio"] {
    border-radius: 50%;
}

.form-check-input:active {
    filter: brightness(90%);
}

.form-check-input:focus {
    border-color: var(--primary-neon);
    outline: 0;
    box-shadow: 0 0 0 0.25rem rgba(255, 110, 199, 0.25);
}

.form-check-input:checked {
    background-color: var(--primary-neon);
    border-color: var(--primary-neon);
}

.form-check-input:checked[type="checkbox"] {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3e%3cpath fill='none' stroke='%23fff' stroke-linecap='round' stroke-linejoin='round' stroke-width='3' d='M6 10l3 3l6-6'/%3e%3c/svg%3e");
}

.form-check-input:checked[type="radio"] {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='-4 -4 8 8'%3e%3ccircle r='2' fill='%23fff'/%3e%3c/svg%3e");
}

.form-check-label {
    color: var(--text-light);
    cursor: pointer;
}

/* Form Validation States */
.form-field.has-error .form-control,
.form-field.has-error .form-select {
    border-color: #dc3545;
    box-shadow: 0 0 0 0.25rem rgba(220, 53, 69, 0.25);
}

.form-field.has-success .form-control,
.form-field.has-success .form-select {
    border-color: #198754;
    box-shadow: 0 0 0 0.25rem rgba(25, 135, 84, 0.25);
}

.form-field.has-error .form-label {
    color: #dc3545;
}

.form-field.has-success .form-label {
    color: #198754;
}

.invalid-feedback,
.valid-feedback {
    display: block;
    width: 100%;
    margin-top: 0.25rem;
    font-size: 0.875em;
}

.invalid-feedback {
    color: #dc3545;
}

.valid-feedback {
    color: #198754;
}

/* Enhanced Button Styling */
.btn {
    display: inline-block;
    font-weight: 500;
    line-height: 1.5;
    color: var(--text-light);
    text-align: center;
    text-decoration: none;
    vertical-align: middle;
    cursor: pointer;
    user-select: none;
    background-color: transparent;
    border: 2px solid transparent;
    padding: 0.5rem 1rem;
    font-size: 1rem;
    border-radius: var(--border-radius);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.btn:hover {
    color: var(--text-light);
    text-decoration: none;
    transform: translateY(-2px);
}

.btn:focus {
    outline: 0;
    box-shadow: 0 0 0 0.25rem rgba(255, 110, 199, 0.25);
}

.btn-primary {
    color: #fff;
    background: linear-gradient(45deg, var(--primary-neon), var(--secondary-neon));
    border-color: var(--primary-neon);
    box-shadow: 0 4px 15px rgba(255, 110, 199, 0.3);
}

.btn-primary:hover {
    color: #fff;
    background: linear-gradient(45deg, var(--secondary-neon), var(--primary-neon));
    border-color: var(--secondary-neon);
    box-shadow: 0 8px 25px rgba(255, 110, 199, 0.4);
    transform: translateY(-3px);
}

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

.btn-secondary:hover {
    color: var(--text-light);
    background-color: var(--border-color);
    border-color: var(--primary-neon);
}

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

.btn-outline-primary:hover {
    color: #fff;
    background-color: var(--primary-neon);
    border-color: var(--primary-neon);
}

.btn-sm {
    padding: 0.375rem 0.75rem;
    font-size: 0.875rem;
    border-radius: calc(var(--border-radius) * 0.75);
}

.btn-lg {
    padding: 0.75rem 1.5rem;
    font-size: 1.125rem;
    border-radius: calc(var(--border-radius) * 1.25);
}

/* Loading States */
.btn.loading {
    color: transparent;
    pointer-events: none;
}

.btn.loading::after {
    content: "";
    position: absolute;
    width: 16px;
    height: 16px;
    top: 50%;
    left: 50%;
    margin-left: -8px;
    margin-top: -8px;
    border: 2px solid transparent;
    border-top-color: currentColor;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Toggle Switch */
.toggle-switch { position: relative; display: inline-block; width: 60px; height: 34px; }
.toggle-switch input { opacity: 0; width: 0; height: 0; }
.toggle-switch label { 
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--border-color);
    transition: var(--transition);
    border-radius: 34px;
}
.toggle-switch label:before { 
    position: absolute;
    content: "";
    height: 26px;
    width: 26px;
    left: 4px;
    bottom: 4px;
    background: white;
    transition: var(--transition);
    border-radius: 50%;
}
.toggle-switch input:checked + label { background: var(--primary-neon); }
.toggle-switch input:checked + label:before { transform: translateX(26px); }

/* Color Picker */
.color-picker-group { 
    display: flex;
    gap: var(--spacing-sm);
    align-items: center;
}
.color-picker-group input[type="color"] { 
    width: 50px;
    height: 40px;
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
}
.color-picker-group input[type="text"] { 
    flex: 1;
    font-family: monospace;
}

/* Sticker Designer */
.sticker-designer { 
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: start;
}
.design-preview { 
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 300px;
    background: radial-gradient(circle, rgba(255, 110, 199, 0.1) 0%, transparent 70%);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-xl);
}
.nfc-sticker-preview { 
    width: 200px;
    height: 200px;
    border-radius: 50%;
    position: relative;
    overflow: hidden;
    box-shadow: var(--card-shadow);
    transition: var(--transition);
}
.nfc-sticker-preview.gradient .sticker-bg { 
    background: linear-gradient(45deg, var(--primary-color, #ff6ec7), var(--secondary-color, #7873f5));
}
.nfc-sticker-preview.waves .sticker-bg { 
    background: linear-gradient(45deg, var(--primary-color, #ff6ec7), var(--secondary-color, #7873f5));
    position: relative;
}
.nfc-sticker-preview.waves .sticker-bg: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='0.1'%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");
}
.sticker-bg { 
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, var(--primary-color, #ff6ec7), var(--secondary-color, #7873f5));
}
.sticker-content { 
    position: relative;
    z-index: 2;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    padding: var(--spacing-md);
    color: white;
}
.nfc-icon { 
    font-size: 2rem;
    margin-bottom: var(--spacing-sm);
    opacity: 0.9;
}
.username-display { 
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    text-align: center;
}
.sticker-qr { 
    width: 80px;
    height: 80px;
    background: white;
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
}
.sticker-qr canvas { 
    max-width: 100%;
    max-height: 100%;
}

/* Design Controls */
.design-controls { 
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}
.control-group { 
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}
.control-group label { 
    font-weight: 500;
    color: var(--text-light);
}
.pattern-selector { 
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-sm);
}
.pattern-option { 
    width: 50px;
    height: 50px;
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
    overflow: hidden;
}
.pattern-option.active { border-color: var(--primary-neon); }
.pattern-option:hover { transform: scale(1.05); }
.pattern-preview { 
    width: 100%;
    height: 100%;
}
.pattern-preview.gradient { 
    background: linear-gradient(45deg, var(--primary-neon), var(--secondary-neon));
}
.pattern-preview.waves { 
    background: linear-gradient(45deg, var(--primary-neon), var(--secondary-neon));
    position: relative;
}
.pattern-preview.geometric { 
    background: var(--primary-neon);
    background-image: radial-gradient(circle at 1px 1px, white 1px, transparent 0);
    background-size: 20px 20px;
}
.pattern-preview.minimal { 
    background: var(--background-card);
    border: 1px solid var(--primary-neon);
}

/* Order Summary */
.order-details { 
    margin-bottom: var(--spacing-lg);
}
.order-item { 
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm) 0;
    border-bottom: 1px solid var(--border-color);
}
.order-item:last-child { border-bottom: none; }
.order-total { 
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: 600;
    font-size: 1.125rem;
    color: var(--primary-neon);
    margin-top: var(--spacing-md);
    padding-top: var(--spacing-md);
    border-top: 2px solid var(--border-color);
}
.price { 
    font-weight: 600;
    color: var(--primary-neon);
}
.shipping-info { 
    margin-top: var(--spacing-lg);
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--border-color);
}
.shipping-info h4 { 
    margin-bottom: var(--spacing-sm);
    color: var(--text-light);
}
.shipping-info p { 
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-xs);
    color: var(--text-muted);
    font-size: 0.875rem;
}
.shipping-info i { 
    color: var(--primary-neon);
    width: 16px;
}

/* Steps */
.steps { 
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}
.step { 
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
}
.step-number { 
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: linear-gradient(45deg, var(--primary-neon), var(--secondary-neon));
    color: white;
    border-radius: 50%;
    font-weight: 600;
    flex-shrink: 0;
}
.step-content h4 { 
    margin-bottom: var(--spacing-xs);
    color: var(--text-light);
}
.step-content p { 
    color: var(--text-muted);
    margin: 0;
    font-size: 0.875rem;
}

/* Alerts */
.alert { 
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
    margin-bottom: var(--spacing-md);
    border: 1px solid transparent;
}
.alert-success { 
    background: rgba(40, 167, 69, 0.1);
    border-color: #28a745;
    color: #28a745;
}
.alert-error, .alert-danger { 
    background: rgba(220, 53, 69, 0.1);
    border-color: #dc3545;
    color: #dc3545;
}
.alert-info { 
    background: rgba(255, 110, 199, 0.1);
    border-color: var(--primary-neon);
    color: var(--primary-neon);
}
.alert-warning { 
    background: rgba(255, 193, 7, 0.1);
    border-color: #ffc107;
    color: #ffc107;
}

/* Dashboard Specific Styles */
.sidebar {
    position: fixed;
    top: 0;
    left: 0;
    width: 260px;
    height: 100vh;
    background: var(--background-sidebar);
    border-right: 1px solid #333;
    z-index: 1000;
    transition: all 0.3s ease;
}
.sidebar.collapsed {
    width: 60px;
}
.sidebar .navbar-brand {
    padding: 20px;
    text-align: center;
    border-bottom: 1px solid #333;
}
.sidebar .menu {
    padding: 20px 0;
}
.sidebar .menu ul {
    list-style: none;
    padding: 0;
    margin: 0;
}
.sidebar .menu li {
    margin: 0;
}
.sidebar .menu li a {
    display: flex;
    align-items: center;
    padding: 12px 20px;
    color: var(--text-muted);
    text-decoration: none;
    transition: all 0.3s ease;
    border-radius: 0 25px 25px 0;
    margin-right: 10px;
}
.sidebar .menu li a:hover,
.sidebar .menu li.active a {
    background: linear-gradient(135deg, var(--primary-neon), var(--secondary-neon));
    color: white;
    text-shadow: 0 0 10px rgba(0,0,0,0.5);
}
.sidebar .menu li a i {
    margin-right: 10px;
    width: 20px;
    text-align: center;
}
.content {
    margin-left: 260px;
    padding: 20px;
    transition: margin-left 0.3s ease;
}
.sidebar.collapsed + .content {
    margin-left: 60px;
}
.user-info {
    padding: 20px;
    text-align: center;
    border-bottom: 1px solid #333;
}
.user-info h4 {
    color: var(--primary-neon);
    margin: 10px 0 5px 0;
}
.user-info small {
    color: var(--text-muted);
}
.btn-menu {
    background: none;
    border: none;
    color: var(--primary-neon);
    font-size: 18px;
    cursor: pointer;
}
.block-header {
    margin-bottom: 30px;
}
.block-header h2 {
    color: var(--primary-neon);
    margin-bottom: 10px;
}
.breadcrumb {
    background: none;
    padding: 0;
    margin: 0;
}
.breadcrumb-item {
    color: var(--text-muted);
}
.breadcrumb-item + .breadcrumb-item::before {
    content: "/";
    color: var(--text-muted);
    margin: 0 5px;
}
.breadcrumb-item.active {
    color: var(--primary-neon);
}
.overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.5);
    z-index: 999;
    display: none;
}
.quick-action {
    transition: all 0.3s ease;
}
.quick-action:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(255, 110, 199, 0.3);
}
.text-pink {
    color: var(--primary-neon) !important;
}
.text-blue {
    color: var(--secondary-neon) !important;
}
.bg-dark {
    background-color: var(--background-card) !important;
}

/* Utilities */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }
.d-none { display: none; }
.d-block { display: block; }
.d-flex { display: flex; }
.align-items-center { align-items: center; }
.justify-content-center { justify-content: center; }
.justify-content-between { justify-content: space-between; }
.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); }
.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); }

/* Responsive Design */
@media (max-width: 768px) {
    .sticker-designer { 
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    .design-preview { 
        min-height: 200px;
        padding: var(--spacing-lg);
    }
    .nfc-sticker-preview { 
        width: 150px;
        height: 150px;
    }
    .pattern-selector { 
        grid-template-columns: repeat(2, 1fr);
    }
    /* Navbar mobile styles handled by navigation component */
    .page-header h1 { 
        font-size: 2rem;
    }
    .container { 
        padding: 0 var(--spacing-sm);
    }
}

/* Animation */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}
@keyframes slideIn {
    from { transform: translateX(-100%); }
    to { transform: translateX(0); }
}
@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}
.fade-in { animation: fadeIn 0.6s ease-out; }
.slide-in { animation: slideIn 0.6s ease-out; }
.pulse { animation: pulse 2s ease-in-out infinite; }

/* Loading States */
.loading { 
    position: relative;
    overflow: hidden;
}
.loading::after { 
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 110, 199, 0.2), transparent);
    animation: loading 1.5s infinite;
}
@keyframes loading {
    0% { left: -100%; }
    100% { left: 100%; }
}

/* Dark Mode Support */
@media (prefers-color-scheme: dark) {
    :root {
        --background-dark: #0a0a0a;
        --background-card: #1a1a1a;
        --text-light: #ffffff;
        --text-muted: #b0b0b0;
    }
}