.support-grid,
.manage-page,
.support-page {
    --support-accent: #00ff9f;
    --support-accent-soft: rgba(0, 255, 159, 0.18);
    --support-panel-shadow: 0 10px 28px rgba(0, 0, 0, 0.22);
}

.support-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
    margin: 20px 0;
}

.support-card {
    position: relative;
    background: var(--desc-bg-color);
    border: 1px solid var(--desc-border-color);
    box-shadow: var(--support-panel-shadow);
    padding: 22px 20px 20px;
    text-align: center;
}

.support-card::before,
.support-panel::before,
.email-form::before,
.subscription-list::before {
    content: "";
    position: absolute;
    top: -1px;
    left: -1px;
    right: -1px;
    height: 2px;
    background: linear-gradient(90deg, #00d9ff, #00ff9f);
}

.support-card h3 {
    color: var(--body-txt);
    margin-bottom: 12px;
    letter-spacing: 0.02em;
}

.support-card p {
    color: var(--excerpt-text);
    margin-bottom: 18px;
    line-height: 1.5;
}

.support-info {
    margin-top: 30px;
    padding: 22px 20px 14px;
    border: 1px solid var(--desc-border-color);
    background: var(--desc-bg-color);
    background: color-mix(in srgb, var(--desc-bg-color) 80%, transparent);
    box-shadow: var(--support-panel-shadow);
}

.support-info h3 {
    color: var(--body-txt);
    margin-bottom: 10px;
    letter-spacing: 0.02em;
}

.support-info p {
    color: var(--excerpt-text);
    line-height: 1.6;
    margin-bottom: 15px;
}

.support-info a {
    color: var(--read-text);
    text-decoration: none;
}

.support-info a:hover {
    text-decoration: underline;
}

.support-manage-link {
    color: #00ff9f !important;
    font-weight: bold;
    display: inline-block;
}

.subscription-info {
    text-align: center;
}

.price {
    font-size: 2.5rem;
    font-weight: bold;
    color: var(--feed-text);
    margin: 15px 0;
}

.price span {
    font-size: 1rem;
    color: var(--excerpt-text);
}

.subscription-info ul {
    list-style: none;
    padding: 0;
    margin: 20px 0;
    text-align: left;
}

.subscription-info li {
    padding: 5px 0;
    color: var(--body-txt);
}

.subscription-info li::before {
    content: "✓ ";
    color: var(--feed-text);
    font-weight: bold;
}

.support-btn {
    background: var(--btn-bg);
    border: 1px solid var(--btn-border);
    color: var(--button-txt);
    padding: 12px 24px;
    cursor: pointer;
    font-size: 16px;
    font-weight: bold;
    width: 100%;
    margin-top: 10px;
    transition: all 0.2s;
    letter-spacing: 0.02em;
}

.support-btn:hover {
    background: var(--button-bgcolor);
    color: #000;
    transform: translateY(-1px);
}

.support-btn.primary {
    background: linear-gradient(45deg, #ff6b6b, #ff8e53);
    color: white;
    animation: support-pulse-glow 2s infinite;
    box-shadow: 0 0 10px rgba(255, 107, 107, 0.5);
}

.support-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    animation: none;
}

@keyframes support-pulse-glow {
    0% { box-shadow: 0 0 10px rgba(255, 107, 107, 0.5); }
    50% { box-shadow: 0 0 20px rgba(255, 107, 107, 0.8); }
    100% { box-shadow: 0 0 10px rgba(255, 107, 107, 0.5); }
}

.btn {
    display: inline-block;
    padding: 12px 24px;
    text-decoration: none;
    font-weight: bold;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    letter-spacing: 0.02em;
    line-height: 1.2;
}

.btn:hover {
    transform: translateY(-2px);
}

.btn:focus-visible,
.support-btn:focus-visible,
.email-form input:focus-visible {
    outline: 2px solid #00d9ff;
    outline-offset: 2px;
}

.btn:disabled {
    background: #666;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.btn-primary {
    background: #00ff9f;
    color: #000 !important;
    text-decoration: none !important;
}

.btn-primary:hover {
    background: #00cc7f;
    color: #000 !important;
    text-decoration: none !important;
    box-shadow: 0 4px 12px rgba(0, 255, 159, 0.3);
}

.btn-secondary {
    background: var(--text-bg);
    color: var(--body-txt) !important;
    border: 1px solid var(--desc-border-color);
    text-decoration: none !important;
}

.btn-secondary:hover {
    background: var(--desc-bg-color);
    color: var(--body-txt) !important;
    text-decoration: none !important;
}

.action-buttons {
    margin-top: 2rem;
    display: flex;
    gap: 15px;
    justify-content: center;
    flex-wrap: wrap;
}

.action-buttons .btn {
    max-width: 250px;
    min-width: 180px;
}

.support-status-message {
    padding: 1rem;
    margin-bottom: 1rem;
}

.error-message,
.success-message,
.info-message {
    padding: 1rem;
    margin-bottom: 1rem;
}

.error-message {
    background: rgba(255, 107, 107, 0.1);
    border: 1px solid #ff6b6b;
    color: #ff6b6b;
}

.success-message {
    background: rgba(0, 255, 159, 0.1);
    border: 1px solid #00ff9f;
    color: #00ff9f;
}

.info-message {
    background: rgba(100, 149, 237, 0.1);
    border: 1px solid #6495ed;
    color: #6495ed;
}

.is-hidden {
    display: none !important;
}

.support-page {
    padding: 2rem 0;
    text-align: center;
}

.support-panel {
    position: relative;
    max-width: 600px;
    margin: 0 auto;
    background: var(--desc-bg-color);
    border: 1px solid var(--desc-border-color);
    box-shadow: var(--support-panel-shadow);
    padding: 3rem 2rem;
}

.support-panel h1 {
    margin-bottom: 0.9rem;
    font-size: clamp(2rem, 4vw, 2.5rem);
    line-height: 1.1;
}

.support-panel .lead {
    color: var(--body-txt);
    font-size: 1.2rem;
    margin-bottom: 2rem;
}

.support-page--success .support-panel h1 {
    color: #00ff9f;
}

.support-page--cancel .support-panel h1 {
    color: #ff6b6b;
}

.support-details {
    margin: 2rem 0;
    text-align: left;
}

.support-details p {
    color: var(--excerpt-text);
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.support-list-block h3 {
    color: var(--body-txt);
    margin-bottom: 1rem;
    text-align: center;
}

.support-list-block ul {
    color: var(--excerpt-text);
    list-style: none;
    padding: 0;
}

.support-list-block li {
    padding: 0.5rem 0;
    padding-left: 1rem;
    margin-bottom: 0.5rem;
    line-height: 1.45;
}

.support-page--success .support-list-block li {
    border-left: 3px solid #00ff9f;
}

.support-page--cancel .support-list-block li {
    border-left: 3px solid #ff6b6b;
}

.manage-page {
    padding: 2rem 1rem;
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
    box-sizing: border-box;
}

.manage-header h1 {
    color: #00ff9f;
    margin-bottom: 1rem;
    font-size: clamp(2rem, 4vw, 2.5rem);
    line-height: 1.1;
}

.manage-header p {
    color: var(--excerpt-text);
    margin-bottom: 2rem;
    line-height: 1.5;
}

.email-form {
    position: relative;
    background: var(--desc-bg-color);
    border: 1px solid var(--desc-border-color);
    box-shadow: var(--support-panel-shadow);
    padding: 2rem;
    margin-bottom: 2rem;
}

.email-form label {
    display: block;
    color: var(--body-txt);
    margin-bottom: 0.5rem;
    font-weight: bold;
    text-align: left;
}

.email-form input {
    width: 100%;
    padding: 12px;
    background: var(--text-bg);
    border: 1px solid var(--desc-border-color);
    color: var(--body-txt);
    margin-bottom: 1rem;
    box-sizing: border-box;
    font-size: 16px;
    transition: border-color 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.email-form input:focus-visible {
    border-color: #00d9ff;
    box-shadow: 0 0 0 2px rgba(0, 217, 255, 0.15);
}

.subscription-list {
    position: relative;
    background: var(--desc-bg-color);
    border: 1px solid var(--desc-border-color);
    box-shadow: var(--support-panel-shadow);
    padding: 2rem;
    margin-bottom: 2rem;
    text-align: left;
}

.subscription-list-heading {
    color: var(--body-txt);
    margin-bottom: 1rem;
}

.subscription-item {
    background: var(--text-bg);
    border: 1px solid var(--desc-border-color);
    padding: 1.5rem;
    margin-bottom: 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    transition: border-color 0.2s ease, transform 0.2s ease, background 0.2s ease;
}

.subscription-item:hover {
    border-color: #00d9ff;
    border-color: color-mix(in srgb, var(--desc-border-color) 55%, #00d9ff);
    transform: translateY(-1px);
}

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

.subscription-info h3 {
    color: var(--body-txt);
    margin-bottom: 0.5rem;
    line-height: 1.35;
}

.subscription-info p {
    color: var(--excerpt-text);
    margin: 0;
    font-size: 0.9rem;
}

.subscription-status {
    color: #00ff9f;
    font-weight: bold;
    text-transform: uppercase;
    font-size: 0.8rem;
}

.loading {
    color: var(--excerpt-text);
    font-style: italic;
}

.no-subscriptions {
    color: var(--excerpt-text);
    text-align: center;
    padding: 2rem;
}

.back-button-container {
    margin-top: 2rem;
    text-align: center;
    padding: 0 1rem;
    box-sizing: border-box;
}

.home-button-container {
    margin-top: 1.5rem;
}

.manage-page .btn {
    background: #00ff9f;
    color: #000 !important;
    text-decoration: none !important;
}

.manage-page .btn:hover {
    background: #00cc7f;
    box-shadow: 0 4px 12px rgba(0, 255, 159, 0.3);
}

.manage-page .btn-secondary {
    background: var(--text-bg) !important;
    color: var(--body-txt) !important;
    border: 1px solid var(--desc-border-color) !important;
    max-width: calc(100% - 2rem);
    box-sizing: border-box;
}

.manage-page .btn-secondary:hover {
    background: var(--desc-bg-color) !important;
    color: var(--body-txt) !important;
    box-shadow: 0 4px 12px rgba(255, 255, 255, 0.1);
}

@media (max-width: 768px) {
    .support-grid {
        grid-template-columns: 1fr;
    }

    .action-buttons {
        flex-direction: column;
        align-items: center;
    }

    .action-buttons .btn {
        width: 100%;
        max-width: 200px;
        min-width: 0;
    }

    .support-panel {
        padding: 2rem 1rem;
    }

    .subscription-item {
        flex-direction: column;
        text-align: center;
        gap: 1rem;
    }

    .manage-page {
        padding: 1rem 0.5rem;
        max-width: 100%;
        margin: 0;
    }

    .email-form {
        padding: 1.5rem 1rem;
    }

    .manage-page .btn {
        width: 100%;
        max-width: calc(100% - 1rem);
        box-sizing: border-box;
    }

    .support-btn {
        padding-inline: 18px;
    }

    .back-button-container {
        padding: 0 0.5rem;
    }
}

.light-mode .support-card {
    background: #f8f9fa;
    border-color: #e9ecef;
    box-shadow: 0 8px 22px rgba(0, 0, 0, 0.06);
}

.light-mode .support-card h3,
.light-mode .support-info h3,
.light-mode .support-panel h1,
.light-mode .support-panel h3 {
    color: #000 !important;
}

.light-mode .support-card p,
.light-mode .support-info p,
.light-mode .subscription-info li,
.light-mode .support-panel p,
.light-mode .support-panel .lead,
.light-mode .support-details p,
.light-mode .support-list-block li {
    color: #333 !important;
}

.light-mode .support-info a {
    color: #000 !important;
}

.light-mode .price {
    color: #000 !important;
}

.light-mode .price span {
    color: #666 !important;
}

.light-mode .subscription-info li::before {
    color: #28a745 !important;
}

.light-mode .support-btn {
    background: #e9ecef;
    border-color: #ced4da;
    color: #333;
}

.light-mode .support-btn:hover {
    background: #dee2e6;
}

.light-mode .manage-header h1 {
    color: #000 !important;
}

.light-mode .manage-header p {
    color: #333 !important;
}

.light-mode .email-form,
.light-mode .subscription-list,
.light-mode .support-panel {
    background: #f8f9fa;
    border-color: #e9ecef;
    box-shadow: 0 8px 22px rgba(0, 0, 0, 0.06);
}

.light-mode .email-form input {
    background: white;
    border-color: #ced4da;
    color: #333;
}

.light-mode .subscription-item {
    background: white;
    border-color: #e9ecef;
}

.light-mode .subscription-status {
    color: #28a745 !important;
}

.light-mode .manage-page .btn {
    background: #28a745 !important;
    color: #fff !important;
}

.light-mode .manage-page .btn:hover {
    background: #1e7e34 !important;
    color: #fff !important;
}

.light-mode .manage-page .btn-secondary,
.light-mode .btn-secondary {
    background: #e9ecef !important;
    color: #333 !important;
    border-color: #ced4da !important;
}

.light-mode .manage-page .btn-secondary:hover,
.light-mode .btn-secondary:hover {
    background: #dee2e6 !important;
    color: #333 !important;
}

.light-mode .info-message {
    background: rgba(23, 162, 184, 0.1);
    border-color: #17a2b8;
    color: #17a2b8;
}

.light-mode .error-message {
    background: rgba(220, 53, 69, 0.1);
    border-color: #dc3545;
    color: #dc3545;
}

.light-mode .success-message {
    background: rgba(40, 167, 69, 0.1);
    border-color: #28a745;
    color: #28a745;
}

.light-mode .support-page--success .support-list-block li {
    border-left-color: #28a745;
}

.light-mode .support-page--cancel .support-list-block li {
    border-left-color: #dc3545;
}

.light-mode .support-page--cancel .btn-primary {
    background: #007bff !important;
    color: #fff !important;
}

.light-mode .support-page--cancel .btn-primary:hover {
    background: #0056b3 !important;
    color: #fff !important;
}