/* ==========================================================================
   AMR Software - Purchase System Theme (Light Theme)
   ========================================================================== */

:root {
    /* Color Palette */
    --amr-page-bg: #f0f4f8;
    --amr-card-bg: #ffffff;
    --amr-card-border: #e2e8f0;
    --amr-card-shadow: 0 4px 24px rgba(0,0,0,.06);
    --amr-card-shadow-hover: 0 10px 32px rgba(0,0,0,.12);
    
    /* Primary (Teal) */
    --amr-primary: #0d9488;
    --amr-primary-dark: #0f766e;
    --amr-primary-light: #ccfbf1;
    --amr-primary-alpha: rgba(13, 148, 136, 0.15);
    
    /* Secondary (Blue) */
    --amr-secondary: #2563eb;
    --amr-secondary-dark: #1d4ed8;
    --amr-secondary-light: #dbeafe;
    
    /* Accent (Emerald Green) */
    --amr-accent: #10b981;
    --amr-accent-dark: #059669;
    --amr-accent-light: #d1fae5;
    
    /* Status Colors */
    --amr-success: #16a34a;
    --amr-success-bg: #dcfce7;
    --amr-warning: #f59e0b;
    --amr-warning-bg: #fef3c7;
    --amr-danger: #ef4444;
    --amr-danger-bg: #fee2e2;
    --amr-info: #3b82f6;
    --amr-info-bg: #eff6ff;
    
    /* Typography Colors */
    --amr-text-primary: #1e293b;
    --amr-text-secondary: #64748b;
    --amr-text-muted: #94a3b8;
    --amr-text-inverse: #ffffff;
    
    /* Gradients */
    --amr-gradient-primary: linear-gradient(135deg, #0d9488, #2563eb);
    --amr-gradient-accent: linear-gradient(135deg, #10b981, #0d9488);
    --amr-gradient-promo: linear-gradient(135deg, #8b5cf6, #3b82f6);
    
    /* Borders & Radius */
    --amr-radius-sm: 8px;
    --amr-radius-md: 12px;
    --amr-radius-lg: 16px;
    --amr-radius-xl: 24px;
    --amr-radius-full: 9999px;
    
    /* Transitions */
    --amr-transition-fast: 0.15s ease-in-out;
    --amr-transition-normal: 0.3s ease-in-out;
    --amr-transition-slow: 0.5s ease-in-out;
    
    /* Fonts */
    --amr-font-sans: 'Inter', system-ui, -apple-system, sans-serif;
}

/* ==========================================================================
   Base & Resets
   ========================================================================== */

body.purchase-theme {
    background-color: var(--amr-page-bg);
    color: var(--amr-text-primary);
    font-family: var(--amr-font-sans);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    margin: 0;
    padding: 0;
}

.purchase-wrapper {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.purchase-main {
    flex: 1;
    padding: 2rem 0;
}

.purchase-container {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* Typography */
.purchase-theme h1, .purchase-theme h2, .purchase-theme h3, 
.purchase-theme h4, .purchase-theme h5, .purchase-theme h6 {
    color: var(--amr-text-primary);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
}

.purchase-theme p {
    color: var(--amr-text-secondary);
    margin-bottom: 1rem;
}

.text-primary { color: var(--amr-primary) !important; }
.text-secondary { color: var(--amr-secondary) !important; }
.text-muted { color: var(--amr-text-muted) !important; }
.text-gradient {
    background: var(--amr-gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ==========================================================================
   Buttons
   ========================================================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-family: var(--amr-font-sans);
    font-weight: 600;
    text-align: center;
    white-space: nowrap;
    vertical-align: middle;
    user-select: none;
    border: 2px solid transparent;
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
    line-height: 1.5;
    border-radius: var(--amr-radius-full);
    transition: all var(--amr-transition-normal);
    cursor: pointer;
    text-decoration: none;
    gap: 0.5rem;
}

.btn:focus-visible {
    outline: none;
    box-shadow: 0 0 0 3px var(--amr-primary-light);
}

.btn:disabled, .btn.disabled {
    opacity: 0.65;
    cursor: not-allowed;
    pointer-events: none;
}

.btn-primary {
    color: var(--amr-text-inverse);
    background-color: var(--amr-primary);
    border-color: var(--amr-primary);
    box-shadow: 0 4px 14px var(--amr-primary-alpha);
}

.btn-primary:hover {
    background-color: var(--amr-primary-dark);
    border-color: var(--amr-primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(13, 148, 136, 0.25);
    color: var(--amr-text-inverse);
}

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

.btn-secondary:hover {
    background-color: var(--amr-primary-light);
    color: var(--amr-primary-dark);
}

.btn-accent {
    color: var(--amr-text-inverse);
    background-color: var(--amr-accent);
    border-color: var(--amr-accent);
}

.btn-accent:hover {
    background-color: var(--amr-accent-dark);
    border-color: var(--amr-accent-dark);
}

.btn-danger {
    color: var(--amr-text-inverse);
    background-color: var(--amr-danger);
    border-color: var(--amr-danger);
}

.btn-danger:hover {
    background-color: #dc2626;
    border-color: #dc2626;
}

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

.btn-outline:hover {
    background-color: var(--amr-page-bg);
    border-color: var(--amr-text-muted);
    color: var(--amr-text-primary);
}

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

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

.btn-icon {
    padding: 0.5rem;
    border-radius: 50%;
    width: 2.5rem;
    height: 2.5rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

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

/* ==========================================================================
   Forms
   ========================================================================== */
.purchase-form {
    width: 100%;
}

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

.form-label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--amr-text-primary);
    font-size: 0.95rem;
}

.form-control {
    display: block;
    width: 100%;
    padding: 0.75rem 1rem;
    font-size: 1rem;
    font-weight: 400;
    line-height: 1.5;
    color: var(--amr-text-primary);
    background-color: var(--amr-card-bg);
    background-clip: padding-box;
    border: 1px solid var(--amr-card-border);
    border-radius: var(--amr-radius-sm);
    transition: border-color var(--amr-transition-fast), box-shadow var(--amr-transition-fast);
}

.form-control::placeholder {
    color: var(--amr-text-muted);
}

.form-control:focus {
    color: var(--amr-text-primary);
    background-color: var(--amr-card-bg);
    border-color: var(--amr-primary);
    outline: 0;
    box-shadow: 0 0 0 4px var(--amr-primary-light);
}

.form-control:disabled, .form-control[readonly] {
    background-color: var(--amr-page-bg);
    opacity: 1;
}

/* Validation States */
.is-valid {
    border-color: var(--amr-success);
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 8 8'%3e%3cpath fill='%2316a34a' d='M2.3 6.73L.6 4.53c-.4-1.04.46-1.4 1.1-.8l1.1 1.4 3.4-3.8c.6-.63 1.6-.27 1.2.7l-4 4.6c-.43.5-.8.4-1.1.1z'/%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right calc(0.375em + 0.1875rem) center;
    background-size: calc(0.75em + 0.375rem) calc(0.75em + 0.375rem);
}

.is-invalid {
    border-color: var(--amr-danger);
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 12' width='12' height='12' fill='none' stroke='%23ef4444'%3e%3ccircle cx='6' cy='6' r='4.5'/%3e%3cpath stroke-linejoin='round' d='M5.8 3.6h.4L6 6.5z'/%3e%3ccircle cx='6' cy='8.2' r='.6' fill='%23ef4444' stroke='none'/%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right calc(0.375em + 0.1875rem) center;
    background-size: calc(0.75em + 0.375rem) calc(0.75em + 0.375rem);
}

.invalid-feedback {
    display: none;
    width: 100%;
    margin-top: 0.25rem;
    font-size: 0.875em;
    color: var(--amr-danger);
}

.is-invalid ~ .invalid-feedback {
    display: block;
}

/* Floating Labels */
.form-floating {
    position: relative;
}
.form-floating > .form-control {
    height: calc(3.5rem + 2px);
    padding: 1rem 0.75rem;
}
.form-floating > label {
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    padding: 1rem 0.75rem;
    pointer-events: none;
    border: 1px solid transparent;
    transform-origin: 0 0;
    transition: opacity .1s ease-in-out, transform .1s ease-in-out;
    color: var(--amr-text-muted);
}
.form-floating > .form-control:focus ~ label,
.form-floating > .form-control:not(:placeholder-shown) ~ label {
    opacity: .65;
    transform: scale(.85) translateY(-0.5rem) translateX(0.15rem);
}

/* File Upload */
.file-upload-zone {
    border: 2px dashed var(--amr-card-border);
    border-radius: var(--amr-radius-md);
    padding: 2rem;
    text-align: center;
    background-color: var(--amr-card-bg);
    transition: all var(--amr-transition-fast);
    cursor: pointer;
    position: relative;
}
.file-upload-zone:hover, .file-upload-zone.dragover {
    border-color: var(--amr-primary);
    background-color: var(--amr-primary-light);
}
.file-upload-zone input[type="file"] {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    opacity: 0;
    cursor: pointer;
}
.file-upload-icon {
    font-size: 2.5rem;
    color: var(--amr-primary);
    margin-bottom: 1rem;
}
.file-upload-text {
    font-weight: 500;
    color: var(--amr-text-primary);
    margin-bottom: 0.25rem;
}
.file-upload-hint {
    font-size: 0.875rem;
    color: var(--amr-text-muted);
}

/* ==========================================================================
   Cards & Plan Cards
   ========================================================================== */
.card {
    background-color: var(--amr-card-bg);
    border-radius: var(--amr-radius-lg);
    border: 1px solid var(--amr-card-border);
    box-shadow: var(--amr-card-shadow);
    transition: box-shadow var(--amr-transition-normal), transform var(--amr-transition-normal);
    overflow: hidden;
}

.card:hover {
    box-shadow: var(--amr-card-shadow-hover);
}

/* Plan Cards */
.plan-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    align-items: stretch;
    margin: 3rem 0;
}

.plan-card {
    position: relative;
    display: flex;
    flex-direction: column;
    padding: 2.5rem 2rem;
    border-radius: var(--amr-radius-xl);
    background: var(--amr-card-bg);
    border: 1px solid var(--amr-card-border);
    box-shadow: var(--amr-card-shadow);
    transition: all var(--amr-transition-normal);
    z-index: 1;
}

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

.plan-card.featured {
    border: 2px solid var(--amr-primary);
    transform: scale(1.05);
    z-index: 2;
    box-shadow: 0 20px 40px rgba(13, 148, 136, 0.1);
}

.plan-card.featured:hover {
    transform: scale(1.05) translateY(-8px);
}

.plan-badge {
    position: absolute;
    top: -14px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--amr-gradient-primary);
    color: white;
    padding: 0.25rem 1.25rem;
    border-radius: var(--amr-radius-full);
    font-size: 0.875rem;
    font-weight: 600;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    box-shadow: 0 4px 10px var(--amr-primary-alpha);
    white-space: nowrap;
}

.plan-header {
    text-align: center;
    margin-bottom: 2rem;
}

.plan-title {
    font-size: 1.5rem;
    color: var(--amr-text-primary);
    margin-bottom: 1rem;
    font-weight: 700;
}

.price-display {
    display: flex;
    align-items: baseline;
    justify-content: center;
    margin-bottom: 0.5rem;
}

.price-currency {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--amr-text-primary);
    margin-right: 0.25rem;
}

.price-amount {
    font-size: 3.5rem;
    font-weight: 800;
    color: var(--amr-text-primary);
    line-height: 1;
    letter-spacing: -1px;
}

.price-period {
    font-size: 1rem;
    color: var(--amr-text-muted);
    margin-left: 0.25rem;
}

.price-original {
    text-decoration: line-through;
    color: var(--amr-text-muted);
    font-size: 1.125rem;
    margin-right: 0.5rem;
}

.plan-desc {
    color: var(--amr-text-secondary);
    font-size: 0.95rem;
    margin-top: 1rem;
    min-height: 3rem;
}

.plan-features {
    list-style: none;
    padding: 0;
    margin: 0 0 2.5rem 0;
    flex-grow: 1;
}

.plan-features li {
    display: flex;
    align-items: flex-start;
    margin-bottom: 1rem;
    color: var(--amr-text-secondary);
    font-size: 0.95rem;
    line-height: 1.4;
}

.plan-features li i, .plan-features li svg {
    color: var(--amr-accent);
    margin-right: 0.75rem;
    margin-top: 0.2rem;
    flex-shrink: 0;
    font-size: 1.125rem;
}

.plan-features li.disabled {
    color: var(--amr-text-muted);
}
.plan-features li.disabled i, .plan-features li.disabled svg {
    color: var(--amr-text-muted);
    opacity: 0.5;
}

.plan-action {
    margin-top: auto;
}

/* Billing Toggle */
.billing-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 2rem auto;
    background: var(--amr-card-bg);
    padding: 0.5rem;
    border-radius: var(--amr-radius-full);
    border: 1px solid var(--amr-card-border);
    max-width: max-content;
    box-shadow: 0 2px 10px rgba(0,0,0,0.02);
}

.toggle-label {
    padding: 0.5rem 1.25rem;
    cursor: pointer;
    font-weight: 600;
    color: var(--amr-text-secondary);
    border-radius: var(--amr-radius-full);
    transition: all var(--amr-transition-fast);
    user-select: none;
}

.toggle-label.active {
    background: var(--amr-primary);
    color: white;
    box-shadow: 0 2px 8px var(--amr-primary-alpha);
}

.savings-badge {
    background: var(--amr-accent-light);
    color: var(--amr-accent-dark);
    font-size: 0.75rem;
    font-weight: 700;
    padding: 0.15rem 0.5rem;
    border-radius: var(--amr-radius-full);
    margin-left: 0.5rem;
    text-transform: uppercase;
}

/* ==========================================================================
   Checkout Stepper
   ========================================================================== */
.checkout-stepper {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin: 2rem 0 3rem;
    position: relative;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.checkout-stepper::before {
    content: '';
    position: absolute;
    top: 20px;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--amr-card-border);
    z-index: 1;
}

.step-item {
    position: relative;
    z-index: 2;
    display: flex;
    flex-direction: column;
    align-items: center;
    width: 80px;
}

.step-circle {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--amr-card-bg);
    border: 2px solid var(--amr-card-border);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    color: var(--amr-text-muted);
    transition: all var(--amr-transition-normal);
    margin-bottom: 0.5rem;
}

.step-label {
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--amr-text-muted);
    text-align: center;
    line-height: 1.2;
}

.step-item.active .step-circle {
    border-color: var(--amr-primary);
    background: var(--amr-primary);
    color: white;
    box-shadow: 0 0 0 4px var(--amr-primary-light);
}

.step-item.active .step-label {
    color: var(--amr-primary);
    font-weight: 700;
}

.step-item.completed .step-circle {
    border-color: var(--amr-primary);
    background: var(--amr-primary-light);
    color: var(--amr-primary);
}

.step-item.completed .step-label {
    color: var(--amr-text-primary);
}

/* Connecting line progress */
.checkout-stepper .progress-line {
    position: absolute;
    top: 20px;
    left: 0;
    height: 2px;
    background: var(--amr-primary);
    z-index: 1;
    transition: width 0.4s ease;
}

/* ==========================================================================
   Cart
   ========================================================================== */
.cart-container {
    display: flex;
    gap: 2rem;
    align-items: flex-start;
}

.cart-items-wrap {
    flex: 1;
    background: var(--amr-card-bg);
    border-radius: var(--amr-radius-lg);
    border: 1px solid var(--amr-card-border);
    box-shadow: var(--amr-card-shadow);
    overflow: hidden;
}

.cart-header {
    display: grid;
    grid-template-columns: 3fr 1fr 1fr 1fr 40px;
    gap: 1rem;
    padding: 1rem 1.5rem;
    background: var(--amr-page-bg);
    border-bottom: 1px solid var(--amr-card-border);
    font-weight: 600;
    color: var(--amr-text-secondary);
    font-size: 0.9rem;
}

.cart-item {
    display: grid;
    grid-template-columns: 3fr 1fr 1fr 1fr 40px;
    gap: 1rem;
    padding: 1.5rem;
    border-bottom: 1px solid var(--amr-card-border);
    align-items: center;
}
.cart-item:last-child {
    border-bottom: none;
}

.cart-item-details {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.item-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--amr-radius-md);
    background: var(--amr-primary-light);
    color: var(--amr-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.item-info h4 {
    margin: 0 0 0.25rem 0;
    font-size: 1.1rem;
}

.item-info p {
    margin: 0;
    font-size: 0.85rem;
    color: var(--amr-text-secondary);
}

.cart-summary {
    width: 350px;
    background: var(--amr-card-bg);
    border-radius: var(--amr-radius-lg);
    border: 1px solid var(--amr-card-border);
    box-shadow: var(--amr-card-shadow);
    padding: 1.5rem;
    position: sticky;
    top: 2rem;
}

.summary-title {
    font-size: 1.25rem;
    margin-bottom: 1.5rem;
    border-bottom: 1px solid var(--amr-card-border);
    padding-bottom: 1rem;
}

.summary-row {
    display: flex;
    justify-content: space-between;
    margin-bottom: 1rem;
    color: var(--amr-text-secondary);
}

.summary-row.total {
    border-top: 1px solid var(--amr-card-border);
    padding-top: 1rem;
    margin-top: 1rem;
    font-weight: 700;
    color: var(--amr-text-primary);
    font-size: 1.25rem;
}

.summary-row.discount {
    color: var(--amr-success);
}

.coupon-box {
    display: flex;
    gap: 0.5rem;
    margin: 1.5rem 0;
}

.coupon-box input {
    flex: 1;
}

/* ==========================================================================
   Authentication (Modal & Pages)
   ========================================================================== */
.auth-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem 1rem;
    background: var(--amr-page-bg) url('../images/auth-bg-pattern.svg') no-repeat center;
    background-size: cover;
}

.auth-card {
    background: var(--amr-card-bg);
    width: 100%;
    max-width: 480px;
    border-radius: var(--amr-radius-xl);
    box-shadow: 0 20px 40px rgba(0,0,0,0.08);
    overflow: hidden;
}

.auth-card.register {
    max-width: 600px;
}

.auth-header {
    text-align: center;
    padding: 2rem 2rem 1rem;
}

.auth-logo {
    height: 48px;
    margin-bottom: 1.5rem;
}

.auth-body {
    padding: 0 2rem 2rem;
}

.auth-tabs {
    display: flex;
    border-bottom: 1px solid var(--amr-card-border);
    margin-bottom: 2rem;
}

.auth-tab {
    flex: 1;
    text-align: center;
    padding: 1rem;
    font-weight: 600;
    color: var(--amr-text-secondary);
    cursor: pointer;
    border-bottom: 2px solid transparent;
    transition: all var(--amr-transition-fast);
}

.auth-tab.active {
    color: var(--amr-primary);
    border-bottom-color: var(--amr-primary);
}

.social-login {
    display: flex;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.btn-social {
    flex: 1;
    background: var(--amr-page-bg);
    border: 1px solid var(--amr-card-border);
    color: var(--amr-text-primary);
}

.btn-social:hover {
    background: var(--amr-card-border);
}

.auth-divider {
    display: flex;
    align-items: center;
    text-align: center;
    margin: 1.5rem 0;
    color: var(--amr-text-muted);
    font-size: 0.85rem;
}

.auth-divider::before, .auth-divider::after {
    content: '';
    flex: 1;
    border-bottom: 1px solid var(--amr-card-border);
}

.auth-divider::before { margin-right: 1rem; }
.auth-divider::after { margin-left: 1rem; }

/* Modal specific */
.auth-modal {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(15, 23, 42, 0.7);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1050;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--amr-transition-normal);
}

.auth-modal.show {
    opacity: 1;
    pointer-events: auto;
}

.auth-modal .auth-card {
    transform: translateY(20px);
    transition: transform var(--amr-transition-normal);
    position: relative;
}

.auth-modal.show .auth-card {
    transform: translateY(0);
}

.modal-close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--amr-text-muted);
    cursor: pointer;
    transition: color var(--amr-transition-fast);
}

.modal-close:hover {
    color: var(--amr-danger);
}

/* ==========================================================================
   Purchase Timeline
   ========================================================================== */
.purchase-timeline {
    position: relative;
    padding-left: 2rem;
    margin: 2rem 0;
}

.purchase-timeline::before {
    content: '';
    position: absolute;
    top: 0;
    bottom: 0;
    left: 7px;
    width: 2px;
    background: var(--amr-card-border);
}

.timeline-item {
    position: relative;
    margin-bottom: 2rem;
}

.timeline-item:last-child {
    margin-bottom: 0;
}

.timeline-dot {
    position: absolute;
    left: -2rem;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--amr-card-bg);
    border: 3px solid var(--amr-card-border);
    top: 4px;
}

.timeline-item.completed .timeline-dot {
    border-color: var(--amr-success);
    background: var(--amr-success);
}

.timeline-item.active .timeline-dot {
    border-color: var(--amr-primary);
    background: var(--amr-card-bg);
    box-shadow: 0 0 0 3px var(--amr-primary-light);
}

.timeline-item.failed .timeline-dot {
    border-color: var(--amr-danger);
    background: var(--amr-danger);
}

.timeline-date {
    font-size: 0.85rem;
    color: var(--amr-text-muted);
    margin-bottom: 0.25rem;
    font-weight: 500;
}

.timeline-content h5 {
    margin: 0 0 0.5rem 0;
    font-size: 1.1rem;
}

.timeline-content p {
    margin: 0;
    font-size: 0.95rem;
    color: var(--amr-text-secondary);
}

/* ==========================================================================
   Promotion Labels & Badges
   ========================================================================== */
.promo-label {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.25rem 0.75rem;
    border-radius: var(--amr-radius-full);
    font-size: 0.8rem;
    font-weight: 600;
    cursor: help;
    color: white;
}

.promo-launch { background: linear-gradient(135deg, #3b82f6, #2dd4bf); }
.promo-discount { background: linear-gradient(135deg, #10b981, #059669); }
.promo-free { background: linear-gradient(135deg, #8b5cf6, #d946ef); }
.promo-loyalty { background: linear-gradient(135deg, #f59e0b, #fbbf24); color: #78350f; }

.badge {
    display: inline-block;
    padding: 0.25em 0.6em;
    font-size: 75%;
    font-weight: 700;
    line-height: 1;
    text-align: center;
    white-space: nowrap;
    vertical-align: baseline;
    border-radius: var(--amr-radius-full);
}

.badge-success { background-color: var(--amr-success-bg); color: var(--amr-success); }
.badge-warning { background-color: var(--amr-warning-bg); color: var(--amr-warning); }
.badge-danger { background-color: var(--amr-danger-bg); color: var(--amr-danger); }
.badge-info { background-color: var(--amr-info-bg); color: var(--amr-info); }
.badge-primary { background-color: var(--amr-primary-light); color: var(--amr-primary-dark); }

/* ==========================================================================
   Admin Tables
   ========================================================================== */
.admin-purchase-table {
    width: 100%;
    background: var(--amr-card-bg);
    border-radius: var(--amr-radius-lg);
    box-shadow: var(--amr-card-shadow);
    border-collapse: separate;
    border-spacing: 0;
    overflow: hidden;
}

.admin-purchase-table th, 
.admin-purchase-table td {
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--amr-card-border);
    text-align: left;
}

.admin-purchase-table th {
    background: var(--amr-page-bg);
    font-weight: 600;
    color: var(--amr-text-secondary);
    text-transform: uppercase;
    font-size: 0.8rem;
    letter-spacing: 0.5px;
}

.admin-purchase-table tbody tr:hover {
    background-color: var(--amr-page-bg);
}

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

/* ==========================================================================
   Payment Proof Viewer
   ========================================================================== */
.proof-viewer {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(15, 23, 42, 0.9);
    z-index: 1100;
    display: flex;
    flex-direction: column;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--amr-transition-normal);
}

.proof-viewer.active {
    opacity: 1;
    pointer-events: auto;
}

.proof-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    background: #1e293b;
    color: white;
}

.proof-actions {
    display: flex;
    gap: 1rem;
}

.proof-content {
    flex: 1;
    display: flex;
    overflow: hidden;
}

.proof-image-area {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    overflow: auto;
}

.proof-image-area img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    box-shadow: 0 0 20px rgba(0,0,0,0.5);
}

.proof-sidebar {
    width: 320px;
    background: var(--amr-card-bg);
    padding: 2rem;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

/* ==========================================================================
   Logo Animation (Orbit)
   ========================================================================== */
.amr-logo-orbit {
    position: relative;
    width: 200px;
    height: 200px;
    margin: 2rem auto;
    display: flex;
    align-items: center;
    justify-content: center;
}

.orbit-inner-logo {
    width: 120px;
    height: auto;
    z-index: 2;
    position: relative;
}

.orbit-ring {
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    border-radius: 50%;
    border: 2px dashed var(--amr-primary);
    border-top-color: var(--amr-secondary);
    border-bottom-color: var(--amr-accent);
    animation: spin 20s linear infinite;
    z-index: 1;
    opacity: 0.6;
}

.orbit-ring::before {
    content: '';
    position: absolute;
    top: 10px; left: 10px; right: 10px; bottom: 10px;
    border-radius: 50%;
    border: 1px solid var(--amr-secondary-light);
    border-left-color: var(--amr-primary);
    animation: spin-reverse 15s linear infinite;
}

.orbit-dot {
    position: absolute;
    width: 12px;
    height: 12px;
    background: var(--amr-primary);
    border-radius: 50%;
    top: -6px;
    left: 50%;
    transform: translateX(-50%);
    box-shadow: 0 0 10px var(--amr-primary);
}

@media (prefers-reduced-motion: reduce) {
    .orbit-ring, .orbit-ring::before {
        animation: none;
    }
}

/* ==========================================================================
   Module List & AI Suggestion Panel
   ========================================================================== */
.module-list {
    background: var(--amr-card-bg);
    border-radius: var(--amr-radius-md);
    border: 1px solid var(--amr-card-border);
}

.module-item {
    display: flex;
    align-items: center;
    padding: 1rem;
    border-bottom: 1px solid var(--amr-card-border);
}
.module-item:last-child {
    border-bottom: none;
}

.module-checkbox {
    width: 20px;
    height: 20px;
    margin-right: 1rem;
    cursor: pointer;
    accent-color: var(--amr-primary);
}

.module-info {
    flex: 1;
}

.module-name {
    font-weight: 600;
    color: var(--amr-text-primary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.module-desc {
    font-size: 0.85rem;
    color: var(--amr-text-secondary);
    margin: 0;
}

.module-price {
    font-weight: 700;
    color: var(--amr-text-primary);
}

.module-item.dependent {
    padding-left: 3rem;
    background: var(--amr-page-bg);
    border-left: 3px solid var(--amr-card-border);
}

.module-warning {
    color: var(--amr-danger);
    font-size: 0.8rem;
    display: flex;
    align-items: center;
    gap: 0.25rem;
    margin-top: 0.25rem;
}

/* AI Suggestion Panel */
.ai-suggestion-panel {
    background: linear-gradient(to bottom right, #ffffff, #f8fafc);
    border-radius: var(--amr-radius-xl);
    border: 1px solid var(--amr-primary-light);
    box-shadow: 0 10px 30px rgba(13, 148, 136, 0.1);
    padding: 2rem;
    margin: 2rem 0;
    position: relative;
    overflow: hidden;
}

.ai-suggestion-panel::before {
    content: '';
    position: absolute;
    top: 0; right: 0;
    width: 150px; height: 150px;
    background: radial-gradient(circle, var(--amr-primary-light) 0%, rgba(255,255,255,0) 70%);
    opacity: 0.5;
    z-index: 0;
}

.ai-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 2rem;
    position: relative;
    z-index: 1;
}

.ai-icon {
    width: 48px; height: 48px;
    background: var(--amr-gradient-primary);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
}

.ai-columns {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    position: relative;
    z-index: 1;
}

.ai-column-title {
    font-weight: 700;
    color: var(--amr-text-primary);
    margin-bottom: 1rem;
    text-align: center;
}

.module-chip {
    background: white;
    border: 1px solid var(--amr-card-border);
    padding: 0.75rem 1rem;
    border-radius: var(--amr-radius-sm);
    margin-bottom: 0.75rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    box-shadow: 0 2px 4px rgba(0,0,0,0.02);
    cursor: grab;
}
.module-chip:active {
    cursor: grabbing;
}

/* ==========================================================================
   Comparison Table
   ========================================================================== */
.comparison-wrapper {
    overflow-x: auto;
    margin: 3rem 0;
}

.plan-comparison {
    width: 100%;
    border-collapse: collapse;
    background: var(--amr-card-bg);
    border-radius: var(--amr-radius-lg);
    overflow: hidden;
    box-shadow: var(--amr-card-shadow);
    min-width: 800px;
}

.plan-comparison th, .plan-comparison td {
    padding: 1.25rem 1rem;
    text-align: center;
    border-bottom: 1px solid var(--amr-card-border);
}

.plan-comparison th:first-child, .plan-comparison td:first-child {
    text-align: left;
    font-weight: 600;
    color: var(--amr-text-primary);
    background: var(--amr-page-bg);
    width: 30%;
}

.plan-comparison th {
    background: var(--amr-card-bg);
    position: sticky;
    top: 0;
    z-index: 10;
    font-size: 1.25rem;
    color: var(--amr-text-primary);
}

.plan-comparison th.recommended {
    background: var(--amr-primary-light);
    color: var(--amr-primary-dark);
    border-top: 4px solid var(--amr-primary);
}
.plan-comparison td.recommended-col {
    background: rgba(13, 148, 136, 0.03);
}

.feature-group-row {
    background: var(--amr-page-bg) !important;
    text-transform: uppercase;
    font-size: 0.85rem;
    letter-spacing: 1px;
    color: var(--amr-text-secondary) !important;
}

.icon-check { color: var(--amr-success); font-size: 1.2rem; }
.icon-cross { color: var(--amr-danger); font-size: 1.2rem; }
.icon-dash { color: var(--amr-text-muted); }

/* ==========================================================================
   Alerts / Flash Messages
   ========================================================================== */
.alert {
    padding: 1rem 1.5rem;
    border-radius: var(--amr-radius-md);
    margin-bottom: 1.5rem;
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    border: 1px solid transparent;
}

.alert-icon {
    font-size: 1.25rem;
    margin-top: 0.1rem;
}

.alert-content {
    flex: 1;
}

.alert-dismiss {
    background: none;
    border: none;
    cursor: pointer;
    opacity: 0.5;
    transition: opacity 0.2s;
}
.alert-dismiss:hover {
    opacity: 1;
}

.alert-success {
    background-color: var(--amr-success-bg);
    border-color: #bbf7d0;
    color: #166534;
}
.alert-success .alert-icon { color: var(--amr-success); }

.alert-warning {
    background-color: var(--amr-warning-bg);
    border-color: #fde68a;
    color: #92400e;
}
.alert-warning .alert-icon { color: var(--amr-warning); }

.alert-danger {
    background-color: var(--amr-danger-bg);
    border-color: #fecaca;
    color: #991b1b;
}
.alert-danger .alert-icon { color: var(--amr-danger); }

.alert-info {
    background-color: var(--amr-info-bg);
    border-color: #bfdbfe;
    color: #1e40af;
}
.alert-info .alert-icon { color: var(--amr-info); }

/* ==========================================================================
   Footer
   ========================================================================== */
.purchase-footer {
    background: var(--amr-card-bg);
    border-top: 1px solid var(--amr-card-border);
    padding: 4rem 0 2rem;
    margin-top: auto;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 2rem;
    margin-bottom: 3rem;
}

.footer-brand p {
    color: var(--amr-text-secondary);
    margin-top: 1rem;
    font-size: 0.95rem;
}

.footer-title {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--amr-text-primary);
    margin-bottom: 1.5rem;
}

.footer-links {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-links li {
    margin-bottom: 0.75rem;
}

.footer-links a {
    color: var(--amr-text-secondary);
    text-decoration: none;
    transition: color var(--amr-transition-fast);
}

.footer-links a:hover {
    color: var(--amr-primary);
}

.footer-bottom {
    border-top: 1px solid var(--amr-card-border);
    padding-top: 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--amr-text-muted);
    font-size: 0.9rem;
}

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

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

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

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

/* ==========================================================================
   Responsive Breakpoints
   ========================================================================== */
@media (max-width: 1440px) {
    .purchase-container { max-width: 1140px; }
}

@media (max-width: 1024px) {
    .plan-grid { grid-template-columns: repeat(2, 1fr); }
    .cart-container { flex-direction: column; }
    .cart-summary { width: 100%; position: static; }
    .ai-columns { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
    
    .plan-card.featured {
        transform: scale(1);
    }
    .plan-card.featured:hover {
        transform: translateY(-8px);
    }
}

@media (max-width: 768px) {
    .plan-grid { grid-template-columns: 1fr; }
    
    .checkout-stepper {
        flex-direction: column;
        align-items: flex-start;
        gap: 1.5rem;
    }
    .checkout-stepper::before {
        left: 19px;
        top: 0;
        bottom: 0;
        width: 2px;
        height: auto;
    }
    .checkout-stepper .progress-line {
        left: 19px;
        top: 0;
        width: 2px;
        height: 50%; /* JS would control this */
        transition: height 0.4s ease;
    }
    .step-item {
        flex-direction: row;
        width: 100%;
        gap: 1rem;
    }
    .step-circle { margin-bottom: 0; }
    .step-label { text-align: left; font-size: 1rem; }
    
    .cart-header { display: none; }
    .cart-item {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    .cart-item-details { flex-direction: column; text-align: center; }
    
    .footer-grid { grid-template-columns: 1fr; text-align: center; }
    .footer-bottom { flex-direction: column; gap: 1rem; text-align: center; }
}

@media (max-width: 430px) {
    .plan-card { padding: 1.5rem; }
    .price-amount { font-size: 2.5rem; }
    .auth-card { border-radius: 0; }
    .auth-page { padding: 0; }
    .proof-header { flex-direction: column; gap: 1rem; }
}

@media (max-width: 375px) {
    .btn { width: 100%; justify-content: center; }
    .billing-toggle { flex-direction: column; gap: 0.5rem; }
}

@media (max-width: 320px) {
    .price-amount { font-size: 2rem; }
    .plan-features li { font-size: 0.85rem; }
}