:root {
    color-scheme: light;
    --bg: #f4f7fb;
    --surface: #ffffff;
    --text: #14213d;
    --muted: #5c677d;
    --primary: #1d4ed8;
    --primary-dark: #153ea8;
    --border: #dbe4f0;
    --danger: #b42318;
    --shadow: 0 18px 40px rgba(20, 33, 61, 0.08);
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: Inter, Arial, sans-serif;
    background: linear-gradient(180deg, #eef4ff 0%, var(--bg) 100%);
    color: var(--text);
}

.container {
    width: min(100% - 40px, 1800px);
    max-width: none;
    margin: 0 auto;
    padding: 48px 20px 64px;
}

.container.narrow {
    max-width: 720px;
}

.admin-container {
    width: min(100% - 48px, 1900px);
}

.logo-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    margin-bottom: 24px;
    flex-wrap: wrap;
}

.partner-logo {
    display: block;
    max-height: 56px;
    max-width: 220px;
    width: auto;
    object-fit: contain;
}

.hero {
    margin-bottom: 28px;
}

.eyebrow {
    margin: 0 0 8px;
    color: var(--primary);
    font-size: 0.95rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

h1 {
    margin: 0;
    font-size: clamp(2rem, 4vw, 3.4rem);
}

.subtitle,
.description,
.summary-note,
small {
    color: var(--muted);
}

.card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 24px;
    box-shadow: var(--shadow);
    padding: 28px;
}

.grid {
    display: grid;
    grid-template-columns: 1.5fr 0.9fr;
    gap: 24px;
}

.support-tier-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 18px;
    margin: 30px 0 28px;
}

.support-tier {
    position: relative;
    overflow: hidden;
    min-height: 172px;
    padding: 24px 22px 22px;
    border: 1px solid var(--tier-border, var(--border));
    border-radius: 22px;
    box-shadow: 0 14px 30px rgba(20, 33, 61, 0.08);
    background: linear-gradient(145deg, var(--tier-light, #ffffff), #ffffff 68%);
    transition: transform 180ms ease, box-shadow 180ms ease;
}

.support-tier::after {
    content: "";
    position: absolute;
    width: 126px;
    height: 126px;
    right: -50px;
    bottom: -56px;
    border-radius: 50%;
    background: var(--tier-accent, var(--primary));
    opacity: 0.1;
}

.support-tier:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 38px rgba(20, 33, 61, 0.14);
}

.support-tier h2,
.support-tier p {
    position: relative;
    z-index: 1;
    margin: 0;
}

.support-tier h2 {
    font-size: 1.35rem;
    color: var(--tier-heading, var(--text));
}

.support-tier p {
    margin-top: 12px;
    font-size: 1.08rem;
    font-weight: 700;
}

.support-tier span {
    position: relative;
    z-index: 1;
    display: block;
    margin-top: 10px;
    color: var(--muted);
    line-height: 1.45;
}

.support-tier.tier-platinum {
    --tier-accent: #475569;
    --tier-border: #b7c2d0;
    --tier-light: #eff4fa;
    --tier-heading: #334155;
    border-top: 6px solid #475569;
}

.support-tier.tier-gold {
    --tier-accent: #d69e08;
    --tier-border: #f2d37a;
    --tier-light: #fffae5;
    --tier-heading: #8a5a00;
    border-top: 6px solid #d69e08;
}

.support-tier.tier-silver {
    --tier-accent: #718096;
    --tier-border: #cbd5e1;
    --tier-light: #f5f7fa;
    --tier-heading: #475569;
    border-top: 6px solid #94a3b8;
}

.support-tier.tier-bronze {
    --tier-accent: #b45309;
    --tier-border: #e7b27a;
    --tier-light: #fff4e8;
    --tier-heading: #8a3f06;
    border-top: 6px solid #b45309;
}

.form,
.summary-panel {
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.field-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.inline-field input {
    max-width: 140px;
}

label,
legend {
    font-weight: 600;
}

input[type="text"],
input[type="email"],
input[type="number"],
input[type="file"] {
    width: 100%;
    padding: 14px 16px;
    border: 1px solid var(--border);
    border-radius: 14px;
    font-size: 1rem;
    background: #fff;
}

fieldset {
    border: 0;
    padding: 0;
    margin: 0;
}

.option-card {
    display: flex;
    gap: 12px;
    align-items: flex-start;
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 16px;
    cursor: pointer;
}

.option-card input {
    margin-top: 4px;
}

.checkbox-option {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 16px;
    border: 1px solid var(--border);
    border-radius: 16px;
    cursor: pointer;
}

.checkbox-option input {
    margin-top: 4px;
}

.checkbox-option span {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.subsection {
    padding: 18px;
    border-radius: 18px;
    background: #f8fbff;
    border: 1px solid #e0ecff;
}

.summary-lines {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.summary-line,
.summary-total {
    display: flex;
    justify-content: space-between;
    gap: 16px;
}

.summary-total {
    font-size: 1.15rem;
    padding-top: 16px;
    border-top: 1px solid var(--border);
}

.invoice-box {
    margin-top: 8px;
    padding-top: 18px;
    border-top: 1px solid var(--border);
}

.invoice-box h3 {
    margin: 0 0 8px;
}

button,
.button-link {
    border: 0;
    border-radius: 14px;
    padding: 15px 20px;
    background: var(--primary);
    color: #fff;
    font-size: 1rem;
    font-weight: 700;
    cursor: pointer;
    text-align: center;
    text-decoration: none;
}

button:hover,
.button-link:hover {
    background: var(--primary-dark);
}

.error {
    padding: 14px 16px;
    border-radius: 12px;
    color: var(--danger);
    background: #fef3f2;
    border: 1px solid #fecdca;
}

.hidden {
    display: none;
}

.success-card {
    text-align: center;
}

.admin-card {
    max-width: 520px;
    margin: 48px auto;
}

.admin-header {
    display: flex;
    align-items: end;
    justify-content: space-between;
    gap: 20px;
    margin-bottom: 24px;
}

.admin-actions {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}

.table-wrap {
    overflow-x: auto;
}

.admin-table-toolbar {
    display: flex;
    justify-content: flex-end;
    margin-bottom: 18px;
}

.page-size-form {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}

.page-size-form label {
    color: var(--muted);
    font-size: 0.95rem;
}

.page-size-form select {
    min-width: 120px;
    padding: 10px 12px;
    border: 1px solid var(--border);
    border-radius: 10px;
    color: var(--text);
    background: #fff;
    font-size: 0.95rem;
}

.table-count {
    color: var(--muted);
    font-size: 0.9rem;
}

.invoice-download-actions {
    display: flex;
    justify-content: flex-end;
    gap: 12px;
    margin-bottom: 18px;
    flex-wrap: wrap;
}

.secondary-button {
    background: #0f766e;
}

.secondary-button:hover {
    background: #0b5f59;
}

.danger-zone {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    margin-top: 24px;
    padding: 18px;
    border: 1px solid #fecdca;
    border-radius: 14px;
    background: #fff7f6;
}

.danger-zone p {
    margin: 6px 0 0;
    color: var(--muted);
}

.danger-button {
    flex: 0 0 auto;
    background: var(--danger);
}

.danger-button:hover {
    background: #8f1d16;
}

table {
    width: 100%;
    border-collapse: collapse;
    min-width: 900px;
}

th,
td {
    padding: 14px 12px;
    text-align: left;
    vertical-align: top;
    border-bottom: 1px solid var(--border);
}

th {
    color: var(--muted);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.checkbox-column {
    width: 42px;
    text-align: center;
}

.checkbox-column input {
    width: 16px;
    height: 16px;
    cursor: pointer;
}

td a {
    color: var(--primary);
    font-weight: 700;
}

.secondary-link {
    display: inline-block;
    margin-bottom: 14px;
    background: #0f766e;
}

.secondary-link:hover {
    background: #0b5f59;
}

.success-message {
    padding: 14px 16px;
    border-radius: 12px;
    color: #05603a;
    background: #ecfdf3;
    border: 1px solid #abefc6;
}

@media (max-width: 900px) {
    .container,
    .admin-container {
        width: min(100% - 24px, 1800px);
        padding: 28px 12px 48px;
    }

    .logo-bar {
        justify-content: center;
    }

    .grid {
        grid-template-columns: 1fr;
    }

    .support-tier-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .admin-header {
        align-items: flex-start;
        flex-direction: column;
    }

    .danger-zone {
        align-items: flex-start;
        flex-direction: column;
    }
}

@media (max-width: 520px) {
    .support-tier-grid {
        grid-template-columns: 1fr;
    }
}