/* ========================================
   BANNER CREATE PUBLIC - MODERN UX DESIGN
   ======================================== */

:root {
    --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --success-gradient: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --info-gradient: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    --warning-gradient: linear-gradient(135deg, #fa709a 0%, #fee140 100%);
    --card-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
    --card-shadow-hover: 0 20px 60px rgba(0, 0, 0, 0.15);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Progress Stepper */
.progress-stepper {
    display: flex;
    justify-content: space-between;
    margin-bottom: 3rem;
    position: relative;
}

.progress-stepper::before {
    content: '';
    position: absolute;
    top: 24px;
    left: 0;
    right: 0;
    height: 3px;
    background: #e5e7eb;
    z-index: 0;
}

.progress-line {
    position: absolute;
    top: 24px;
    left: 0;
    height: 3px;
    background: var(--primary-gradient);
    z-index: 1;
    transition: width 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.step {
    position: relative;
    z-index: 2;
    display: flex;
    flex-direction: column;
    align-items: center;
    flex: 1;
}

.step-circle {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: white;
    border: 3px solid #e5e7eb;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    transition: var(--transition);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.step.active .step-circle {
    border-color: #667eea;
    background: var(--primary-gradient);
    color: white;
    transform: scale(1.1);
}

.step.completed .step-circle {
    border-color: #10b981;
    background: #10b981;
    color: white;
}

.step-label {
    margin-top: 0.75rem;
    font-size: 0.875rem;
    font-weight: 600;
    color: #6b7280;
    transition: var(--transition);
}

.step.active .step-label {
    color: #667eea;
}

.step.completed .step-label {
    color: #10b981;
}

/* Hero Section */
.banner-hero {
    text-align: center;
    padding: 3rem 1rem;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 1.5rem;
    margin-bottom: 3rem;
    color: white;
    position: relative;
    overflow: hidden;
}

.banner-hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 300px;
    height: 300px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    animation: float 6s ease-in-out infinite;
}

.banner-hero::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -5%;
    width: 200px;
    height: 200px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 50%;
    animation: float 8s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-20px); }
}

.banner-hero h1 {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 1rem;
    position: relative;
    z-index: 1;
}

.banner-hero p {
    font-size: 1.125rem;
    opacity: 0.95;
    position: relative;
    z-index: 1;
}

/* Banner Position Cards */
.banner-positions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.position-card {
    background: white;
    border-radius: 1rem;
    padding: 1.5rem;
    box-shadow: var(--card-shadow);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    border: 2px solid transparent;
    cursor: pointer;
}

.position-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--primary-gradient);
    transform: scaleX(0);
    transition: transform 0.3s;
}

.position-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--card-shadow-hover);
    border-color: #667eea;
}

.position-card:hover::before {
    transform: scaleX(1);
}

.position-card.selected {
    border-color: #667eea;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.05) 0%, rgba(118, 75, 162, 0.05) 100%);
}

.position-card.selected::before {
    transform: scaleX(1);
}

.position-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 1rem;
    background: var(--primary-gradient);
    border-radius: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.75rem;
    box-shadow: 0 8px 20px rgba(102, 126, 234, 0.3);
}

.position-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: #1f2937;
    margin-bottom: 0.5rem;
    text-align: center;
}

.position-size {
    display: inline-block;
    padding: 0.375rem 0.875rem;
    background: #f3f4f6;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 600;
    color: #6b7280;
    margin: 0 auto 1rem;
}

.position-preview {
    width: 100%;
    height: 120px;
    background: linear-gradient(135deg, #f3f4f6 0%, #e5e7eb 100%);
    border-radius: 0.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1rem;
    border: 2px dashed #d1d5db;
    transition: var(--transition);
}

.position-card:hover .position-preview {
    border-color: #667eea;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.1) 0%, rgba(118, 75, 162, 0.1) 100%);
}

.position-description {
    font-size: 0.875rem;
    color: #6b7280;
    margin-bottom: 1.5rem;
    text-align: center;
    line-height: 1.5;
}

.position-price {
    display: flex;
    align-items: baseline;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.price-amount {
    font-size: 2rem;
    font-weight: 800;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.price-period {
    font-size: 0.875rem;
    color: #6b7280;
    margin-left: 0.5rem;
}

.select-position-btn {
    width: 100%;
    padding: 0.875rem;
    background: var(--primary-gradient);
    color: white;
    border: none;
    border-radius: 0.75rem;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: 0 4px 14px rgba(102, 126, 234, 0.4);
}

.select-position-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.5);
}

.select-position-btn:active {
    transform: translateY(0);
}

/* Form Section */
.banner-form-card {
    background: white;
    border-radius: 1.5rem;
    padding: 2.5rem;
    box-shadow: var(--card-shadow);
    margin-bottom: 2rem;
}

.form-section-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: #1f2937;
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid #f3f4f6;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.form-section-icon {
    width: 40px;
    height: 40px;
    background: var(--primary-gradient);
    border-radius: 0.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.875rem;
    font-weight: 600;
    color: #374151;
    margin-bottom: 0.5rem;
}

.form-label-required {
    color: #ef4444;
}

.form-input {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 2px solid #e5e7eb;
    border-radius: 0.75rem;
    font-size: 1rem;
    transition: var(--transition);
    background: white;
}

.form-input:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.form-input:hover {
    border-color: #d1d5db;
}

.form-help {
    font-size: 0.75rem;
    color: #6b7280;
    margin-top: 0.375rem;
}

/* File Upload Area */
.file-upload-area {
    border: 3px dashed #d1d5db;
    border-radius: 1rem;
    padding: 2.5rem;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    background: linear-gradient(135deg, #f9fafb 0%, #f3f4f6 100%);
    position: relative;
}

.file-upload-area:hover {
    border-color: #667eea;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.05) 0%, rgba(118, 75, 162, 0.05) 100%);
}

.file-upload-area.dragover {
    border-color: #667eea;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.1) 0%, rgba(118, 75, 162, 0.1) 100%);
    transform: scale(1.02);
}

.upload-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 1rem;
    background: var(--primary-gradient);
    border-radius: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 2rem;
}

.upload-text {
    font-size: 1rem;
    font-weight: 600;
    color: #374151;
    margin-bottom: 0.5rem;
}

.upload-hint {
    font-size: 0.875rem;
    color: #6b7280;
}

#image {
    display: none;
}

/* Image Preview */
.image-preview-container {
    margin-top: 1.5rem;
    display: none;
}

.image-preview-container.show {
    display: block;
}

.image-preview {
    position: relative;
    border-radius: 1rem;
    overflow: hidden;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
}

.image-preview img {
    width: 100%;
    height: auto;
    display: block;
}

.remove-image-btn {
    position: absolute;
    top: 1rem;
    right: 1rem;
    width: 36px;
    height: 36px;
    background: rgba(239, 68, 68, 0.95);
    border: none;
    border-radius: 50%;
    color: white;
    font-size: 1.25rem;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

.remove-image-btn:hover {
    background: #dc2626;
    transform: scale(1.1);
}

/* Duration Selector */
.duration-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 1rem;
    margin-top: 0.75rem;
}

.duration-option {
    position: relative;
}

.duration-radio {
    display: none;
}

.duration-label {
    display: block;
    padding: 1rem;
    border: 2px solid #e5e7eb;
    border-radius: 0.75rem;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    background: white;
}

.duration-label:hover {
    border-color: #667eea;
    background: rgba(102, 126, 234, 0.05);
}

.duration-radio:checked + .duration-label {
    border-color: #667eea;
    background: var(--primary-gradient);
    color: white;
    box-shadow: 0 4px 14px rgba(102, 126, 234, 0.4);
}

.duration-months {
    font-size: 1.25rem;
    font-weight: 700;
    display: block;
    margin-bottom: 0.25rem;
}

.duration-discount {
    font-size: 0.75rem;
    opacity: 0.9;
}

/* Price Summary */
.price-summary {
    background: linear-gradient(135deg, #f9fafb 0%, #f3f4f6 100%);
    border-radius: 1rem;
    padding: 1.5rem;
    margin-top: 2rem;
}

.price-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 0;
    border-bottom: 1px solid #e5e7eb;
}

.price-row:last-child {
    border-bottom: none;
    padding-top: 1rem;
    margin-top: 0.5rem;
}

.price-label {
    font-size: 0.875rem;
    color: #6b7280;
    font-weight: 500;
}

.price-value {
    font-size: 1rem;
    color: #374151;
    font-weight: 600;
}

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

.price-total-label {
    font-size: 1.25rem;
    font-weight: 700;
    color: #1f2937;
}

.price-total-value {
    font-size: 2rem;
    font-weight: 800;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Action Buttons */
.form-actions {
    display: flex;
    gap: 1rem;
    margin-top: 2rem;
    justify-content: flex-end;
}

.btn {
    padding: 0.875rem 2rem;
    border-radius: 0.75rem;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-secondary {
    background: white;
    color: #374151;
    border: 2px solid #e5e7eb;
}

.btn-secondary:hover {
    border-color: #d1d5db;
    background: #f9fafb;
}

.btn-primary {
    background: var(--primary-gradient);
    color: white;
    box-shadow: 0 4px 14px rgba(102, 126, 234, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.5);
}

.btn-primary:active {
    transform: translateY(0);
}

/* Info Box */
.info-box {
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.1) 0%, rgba(147, 197, 253, 0.1) 100%);
    border-left: 4px solid #3b82f6;
    border-radius: 0.75rem;
    padding: 1.25rem;
    margin: 1.5rem 0;
}

.info-box-title {
    font-weight: 700;
    color: #1e40af;
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.info-box-text {
    font-size: 0.875rem;
    color: #1e3a8a;
    line-height: 1.6;
}

/* Success/Error Messages */
.alert {
    padding: 1rem 1.5rem;
    border-radius: 0.75rem;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    animation: slideDown 0.3s ease-out;
}

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

.alert-success {
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.1) 0%, rgba(6, 182, 212, 0.1) 100%);
    border-left: 4px solid #10b981;
    color: #065f46;
}

.alert-error {
    background: linear-gradient(135deg, rgba(239, 68, 68, 0.1) 0%, rgba(220, 38, 38, 0.1) 100%);
    border-left: 4px solid #ef4444;
    color: #991b1b;
}

.alert-icon {
    font-size: 1.5rem;
    flex-shrink: 0;
}

/* Dark Mode Support */
@media (prefers-color-scheme: dark) {
    .position-card,
    .banner-form-card {
        background: #1f2937;
    }
    
    .position-title,
    .form-section-title,
    .price-total-label {
        color: #f9fafb;
    }
    
    .position-description,
    .form-label,
    .price-label {
        color: #d1d5db;
    }
    
    .form-input {
        background: #374151;
        border-color: #4b5563;
        color: #f9fafb;
    }
    
    .file-upload-area {
        background: linear-gradient(135deg, #374151 0%, #1f2937 100%);
        border-color: #4b5563;
    }
}

/* Responsive Design */
@media (max-width: 768px) {
    .banner-hero h1 {
        font-size: 1.875rem;
    }
    
    .banner-positions-grid {
        grid-template-columns: 1fr;
    }
    
    .progress-stepper {
        flex-direction: column;
        gap: 1rem;
    }
    
    .progress-stepper::before,
    .progress-line {
        display: none;
    }
    
    .banner-form-card {
        padding: 1.5rem;
    }
    
    .form-actions {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
        justify-content: center;
    }
    
    .duration-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Loading State */
.btn.loading {
    position: relative;
    pointer-events: none;
}

.btn.loading::after {
    content: '';
    position: absolute;
    width: 20px;
    height: 20px;
    top: 50%;
    left: 50%;
    margin: -10px 0 0 -10px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}

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

/* Animations */
.fade-in {
    animation: fadeIn 0.5s ease-out;
}

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

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

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(40px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}