/* =========================================
   CRYPTO TEK AI V3 - UPGRADE PAGE
   Modern, Professional Design
   ========================================= */

.upgrade-page-wrapper {
    min-height: 100vh;
    padding: 2rem 1rem;
    max-width: 1400px;
    margin: 0 auto;
}

/* Header */
.upgrade-header {
    text-align: center;
    margin-bottom: 2.5rem;
}

.upgrade-header-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 1.5rem;
    background: linear-gradient(135deg, #9C27B0, #673AB7);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    box-shadow: 0 8px 24px rgba(156, 39, 176, 0.3);
}

.upgrade-header h1 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.75rem;
}

.upgrade-header p {
    font-size: 1rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* Campaign Banner */
.upgrade-campaign-banner {
    background: linear-gradient(135deg, #FF6B35, #F7931A);
    border-radius: 16px;
    padding: 1.5rem;
    margin-bottom: 2rem;
    box-shadow: 0 4px 16px rgba(255, 107, 53, 0.2);
}

.upgrade-campaign-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.upgrade-campaign-info {
    flex: 1;
    min-width: 200px;
}

.upgrade-campaign-title {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: #fff;
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.upgrade-campaign-title span {
    font-size: 1.75rem;
}

.upgrade-campaign-desc {
    color: rgba(255, 255, 255, 0.9);
    font-size: 0.875rem;
}

.upgrade-countdown {
    display: flex;
    gap: 0.5rem;
}

.upgrade-countdown-item {
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    border-radius: 12px;
    padding: 0.75rem 1rem;
    min-width: 70px;
    text-align: center;
}

.upgrade-countdown-value {
    color: #fff;
    font-size: 1.5rem;
    font-weight: 700;
    line-height: 1;
}

.upgrade-countdown-label {
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.75rem;
    text-transform: uppercase;
    margin-top: 0.25rem;
}

/* Current Package Badge */
.upgrade-current-package {
    background: rgba(255, 107, 53, 0.08);
    border: 1px solid rgba(255, 107, 53, 0.2);
    border-radius: 12px;
    padding: 1rem 1.25rem;
    margin-bottom: 2rem;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.upgrade-current-package-icon {
    font-size: 2rem;
}

.upgrade-current-package-info {
    flex: 1;
}

.upgrade-current-package-label {
    color: var(--text-secondary);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-weight: 500;
    margin-bottom: 0.25rem;
}

.upgrade-current-package-name {
    color: var(--text-primary);
    font-size: 1rem;
    font-weight: 600;
}

/* Packages Grid */
.upgrade-packages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

/* Package Card */
.upgrade-package-card {
    position: relative;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 2rem;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.upgrade-package-card.highlighted {
    border-color: rgba(156, 39, 176, 0.4);
    background: linear-gradient(135deg, rgba(156, 39, 176, 0.05), var(--bg-card));
    box-shadow: 0 8px 24px rgba(156, 39, 176, 0.15);
    transform: scale(1.02);
}

.upgrade-package-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
}

.upgrade-package-card.highlighted:hover {
    transform: translateY(-4px) scale(1.02);
}

/* Package Badges */
.upgrade-package-badge-top {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(135deg, #F59E0B, #D97706);
    color: #000;
    padding: 0.375rem 1rem;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    box-shadow: 0 4px 12px rgba(245, 158, 11, 0.3);
}

.upgrade-package-badge-top.best {
    background: linear-gradient(135deg, #9C27B0, #673AB7);
    color: #fff;
}

.upgrade-package-badge-discount {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: linear-gradient(135deg, #FF6B35, #F7931A);
    color: #fff;
    padding: 0.375rem 0.75rem;
    border-radius: 8px;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
}

.upgrade-package-badge-current {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: rgba(76, 175, 80, 0.1);
    color: #4CAF50;
    border: 1px solid rgba(76, 175, 80, 0.2);
    padding: 0.375rem 0.75rem;
    border-radius: 8px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
}

/* Package Header */
.upgrade-package-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--border);
    margin-bottom: 1.5rem;
}

.upgrade-package-icon {
    font-size: 2.5rem;
}

.upgrade-package-info {
    flex: 1;
}

.upgrade-package-name {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.upgrade-package-name.free {
    color: #6B7280;
}

.upgrade-package-name.pro {
    color: #3B82F6;
}

.upgrade-package-name.premium {
    color: #F59E0B;
}

.upgrade-package-name.diamond {
    background: linear-gradient(135deg, #9C27B0, #673AB7);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.upgrade-package-price {
    color: var(--text-primary);
    display: flex;
    align-items: baseline;
    gap: 0.5rem;
}

.upgrade-package-price-old {
    color: var(--text-muted);
    text-decoration: line-through;
    font-size: 1rem;
}

.upgrade-package-price-current {
    font-size: 1.75rem;
    font-weight: 700;
    color: #4CAF50;
}

.upgrade-package-price-period {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

/* Package Features */
.upgrade-package-features {
    margin-bottom: 1.5rem;
}

.upgrade-feature-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.875rem 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.03);
}

.upgrade-feature-item:last-child {
    border-bottom: none;
}

.upgrade-feature-icon {
    font-size: 1.25rem;
}

.upgrade-feature-icon.locked {
    opacity: 0.4;
}

.upgrade-feature-name {
    flex: 1;
    font-size: 0.9375rem;
    color: var(--text-secondary);
}

.upgrade-feature-name.locked {
    color: var(--text-muted);
}

.upgrade-feature-value {
    font-weight: 600;
    font-size: 0.875rem;
    color: #4CAF50;
}

.upgrade-feature-value.locked {
    color: #EF4444;
}

.upgrade-feature-value.highlight {
    color: #00D4FF;
}

/* Package Button */
.upgrade-package-btn {
    width: 100%;
    padding: 1rem;
    border: none;
    border-radius: 12px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.upgrade-package-btn.free {
    background: rgba(107, 114, 128, 0.1);
    color: #6B7280;
    cursor: not-allowed;
}

.upgrade-package-btn.pro:not(:disabled) {
    background: linear-gradient(135deg, #2563EB, #1D4ED8);
    color: #fff;
}

.upgrade-package-btn.premium:not(:disabled) {
    background: linear-gradient(135deg, #F59E0B, #D97706);
    color: #000;
}

.upgrade-package-btn.diamond:not(:disabled) {
    background: linear-gradient(135deg, #9C27B0, #673AB7);
    color: #fff;
}

.upgrade-package-btn:not(:disabled):hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.15);
}

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

.upgrade-package-btn:disabled {
    background: rgba(255, 255, 255, 0.04);
    color: var(--text-muted);
    cursor: not-allowed;
}

/* Features Accordion */
.upgrade-accordion-section {
    margin-top: 1rem;
    margin-bottom: 3rem;
}

.upgrade-accordion-title {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 1rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--border);
}

.upgrade-accordion-title-icon {
    font-size: 1.5rem;
}

.upgrade-accordion-item {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    margin-bottom: 0.5rem;
    overflow: hidden;
    transition: all 0.3s ease;
}

.upgrade-accordion-item:hover {
    border-color: rgba(255, 255, 255, 0.1);
}

.upgrade-accordion-item.expanded {
    border-color: rgba(255, 107, 53, 0.3);
    box-shadow: 0 2px 12px rgba(255, 107, 53, 0.08);
}

.upgrade-accordion-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 1.25rem;
    cursor: pointer;
    user-select: none;
    transition: background 0.2s ease;
}

.upgrade-accordion-header:hover {
    background: rgba(255, 255, 255, 0.02);
}

.upgrade-accordion-header-icon {
    font-size: 1.25rem;
    flex-shrink: 0;
}

.upgrade-accordion-header-name {
    flex: 1;
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--text-primary);
}

.upgrade-accordion-arrow {
    font-size: 0.75rem;
    color: var(--text-secondary);
    transition: transform 0.3s ease;
    flex-shrink: 0;
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.04);
}

.upgrade-accordion-item.expanded .upgrade-accordion-arrow {
    transform: rotate(180deg);
    background: rgba(255, 107, 53, 0.15);
    color: #FF6B35;
}

.upgrade-accordion-body {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.upgrade-accordion-item.expanded .upgrade-accordion-body {
    max-height: 300px;
}

.upgrade-accordion-body-inner {
    padding: 0 1.25rem 1rem;
    color: var(--text-secondary);
    font-size: 0.875rem;
    line-height: 1.6;
    border-top: 1px solid var(--border);
    padding-top: 0.75rem;
}

/* Responsive */
@media (max-width: 768px) {
    .upgrade-page-wrapper {
        padding: 1.5rem 1rem;
    }

    .upgrade-header h1 {
        font-size: 1.5rem;
    }

    .upgrade-header p {
        font-size: 0.875rem;
    }

    .upgrade-packages-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .upgrade-package-card.highlighted {
        transform: scale(1);
    }

    .upgrade-package-card.highlighted:hover {
        transform: translateY(-4px);
    }

    .upgrade-countdown {
        width: 100%;
        justify-content: center;
    }

    .upgrade-countdown-item {
        min-width: 60px;
        padding: 0.625rem 0.75rem;
    }

    .upgrade-countdown-value {
        font-size: 1.25rem;
    }
}

/* Animations */
@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.upgrade-page-wrapper {
    animation: slideIn 0.3s ease;
}

.upgrade-package-card {
    animation: slideIn 0.4s ease backwards;
}

.upgrade-package-card:nth-child(1) {
    animation-delay: 0.1s;
}

.upgrade-package-card:nth-child(2) {
    animation-delay: 0.2s;
}

.upgrade-package-card:nth-child(3) {
    animation-delay: 0.3s;
}

.upgrade-package-card:nth-child(4) {
    animation-delay: 0.4s;
}