:root {
    --support-bg: #f4f7fb;
    --support-surface: rgba(255, 255, 255, 0.94);
    --support-border: #dfe7f2;
    --support-text: #10172a;
    --support-muted: #667085;
    --support-primary: #1e5eff;
    --support-primary-dark: #1749e5;
    --support-success: #17c47f;
    --support-success-bg: rgba(23, 196, 127, 0.12);
    --support-warning-bg: #fff7df;
    --support-warning-border: #f2d270;
    --support-warning-text: #8a6200;
    --support-error-bg: #fff1f1;
    --support-error-border: #f3b5b5;
    --support-error-text: #b42318;
    --support-shadow: 0 24px 70px rgba(16, 23, 42, 0.08);
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    min-height: 100vh;
    font-family: 'Inter', sans-serif;
    color: var(--support-text);
    background:
        radial-gradient(circle at top, rgba(30, 94, 255, 0.13), transparent 32%),
        linear-gradient(180deg, #f8fbff 0%, var(--support-bg) 100%);
}

a {
    color: inherit;
}

.support-page {
    max-width: 980px;
    margin: 0 auto;
    padding: 32px 20px 72px;
}

.support-header {
    display: flex;
    justify-content: center;
    margin-bottom: 28px;
}

.brand-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.88);
    border: 1px solid rgba(223, 231, 242, 0.9);
    border-radius: 24px;
    padding: 18px 28px;
    box-shadow: 0 18px 40px rgba(30, 94, 255, 0.08);
}

.brand-link img {
    height: 82px;
    width: auto;
    max-width: 320px;
    display: block;
    object-fit: contain;
}

.support-hero {
    text-align: center;
    margin-bottom: 28px;
}

.support-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: rgba(30, 94, 255, 0.1);
    border: 1px solid rgba(30, 94, 255, 0.18);
    color: var(--support-primary);
    font-weight: 700;
    font-size: 14px;
    padding: 8px 16px;
    border-radius: 999px;
}

.support-eyebrow-icon {
    width: 24px;
    height: 24px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 999px;
    background: rgba(30, 94, 255, 0.12);
}

.support-hero h1 {
    margin: 20px 0 12px;
    font-size: clamp(2.2rem, 5vw, 3.4rem);
    line-height: 1.05;
    letter-spacing: -0.04em;
}

.support-hero-subtitle {
    margin: 0 auto 10px;
    max-width: 720px;
    color: var(--support-text);
    font-size: 1.14rem;
    line-height: 1.65;
    font-weight: 600;
}

.support-hero-copy {
    margin: 0 auto;
    max-width: 620px;
    color: var(--support-muted);
    font-size: 1.04rem;
    line-height: 1.7;
}

.support-hero-actions {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 14px;
    margin-top: 22px;
    flex-wrap: wrap;
}

.support-primary-button,
.support-secondary-button,
.support-submit-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 54px;
    border-radius: 18px;
    font-weight: 800;
    letter-spacing: -0.01em;
    text-decoration: none;
    transition: transform 0.2s ease, box-shadow 0.2s ease, opacity 0.2s ease;
}

.support-primary-button,
.support-submit-button {
    padding: 0 26px;
    border: 0;
    color: #fff;
    background: linear-gradient(135deg, var(--support-primary) 0%, var(--support-primary-dark) 100%);
    box-shadow: 0 18px 36px rgba(30, 94, 255, 0.22);
}

.support-secondary-button {
    padding: 0 24px;
    border: 1px solid rgba(30, 94, 255, 0.18);
    background: rgba(255, 255, 255, 0.82);
    color: var(--support-primary);
}

.support-primary-button:hover,
.support-secondary-button:hover,
.support-submit-button:hover {
    transform: translateY(-1px);
}

.support-guidance {
    margin-bottom: 18px;
}

.support-help-center-card {
    margin-top: 18px;
    padding: 22px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
}

.support-help-center-copy {
    display: grid;
    gap: 8px;
}

.support-help-center-copy h2 {
    margin: 0;
    font-size: 1.3rem;
    letter-spacing: -0.02em;
}

.support-help-center-copy p {
    margin: 0;
    color: var(--support-muted);
    line-height: 1.7;
    max-width: 640px;
}

.support-section-heading {
    margin-bottom: 16px;
}

.support-section-heading h2 {
    margin: 0;
    font-size: 1.9rem;
    letter-spacing: -0.03em;
}

.support-guidance-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
}

.support-card,
.support-guidance-card,
.support-notice {
    background: var(--support-surface);
    border: 1px solid rgba(223, 231, 242, 0.92);
    border-radius: 28px;
    box-shadow: var(--support-shadow);
    backdrop-filter: blur(14px);
}

.support-guidance-card {
    padding: 22px;
}

.support-guidance-card h3 {
    margin: 0 0 8px;
    font-size: 1.12rem;
}

.support-guidance-card p {
    margin: 0;
    color: var(--support-muted);
    line-height: 1.7;
}

.support-notice {
    margin-bottom: 16px;
    padding: 16px 18px;
    color: var(--support-warning-text);
    background: var(--support-warning-bg);
    border-color: var(--support-warning-border);
    font-size: 14px;
    line-height: 1.6;
}

.support-form-card,
.support-state-card,
.support-info-card,
.support-faq-card {
    padding: 28px;
    margin-top: 18px;
}

.support-form-heading {
    margin-bottom: 24px;
}

.support-form-heading h2 {
    margin: 0 0 8px;
    font-size: 1.65rem;
}

.support-form-heading p {
    margin: 0;
    color: var(--support-muted);
    line-height: 1.7;
}

#support-form {
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.support-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
}

.support-field,
.support-terms {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.support-field label {
    font-weight: 700;
    font-size: 14px;
}

.required-marker {
    color: #ff4d4f;
}

.support-field input,
.support-field select,
.support-field textarea {
    width: 100%;
    min-height: 52px;
    border-radius: 16px;
    border: 1px solid #d8dfeb;
    background: #fff;
    color: var(--support-text);
    font: inherit;
    padding: 14px 16px;
    outline: none;
    transition: border-color 0.2s ease, box-shadow 0.2s ease, background-color 0.2s ease;
}

.support-field textarea {
    min-height: 170px;
    resize: vertical;
}

.support-field input:focus,
.support-field select:focus,
.support-field textarea:focus {
    border-color: rgba(30, 94, 255, 0.8);
    box-shadow: 0 0 0 4px rgba(30, 94, 255, 0.12);
}

.support-field input::placeholder,
.support-field textarea::placeholder {
    color: #98a2b3;
}

.support-field.has-error input,
.support-field.has-error select,
.support-field.has-error textarea,
.support-terms.has-error .support-checkbox-row {
    border-color: #f04438;
    background: #fff6f6;
}

.support-field-error {
    min-height: 18px;
    margin: 0;
    color: #f04438;
    font-size: 12px;
    font-weight: 600;
}

.support-checkbox-row {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    border: 1px solid transparent;
    border-radius: 18px;
    padding: 2px;
    cursor: pointer;
}

.support-checkbox-row input {
    width: 18px;
    height: 18px;
    margin-top: 2px;
    accent-color: var(--support-primary);
}

.support-checkbox-row span {
    color: var(--support-muted);
    font-size: 14px;
    line-height: 1.7;
}

.support-checkbox-row a,
.support-state-link {
    color: var(--support-primary);
    font-weight: 700;
    text-decoration: none;
}

.support-submit-button {
    width: 100%;
    cursor: pointer;
}

.support-submit-button:disabled {
    opacity: 0.7;
    cursor: wait;
    transform: none;
}

.support-security-note {
    margin: 0;
    text-align: center;
    color: var(--support-muted);
    font-size: 12px;
    line-height: 1.6;
}

.support-feedback {
    margin-bottom: 20px;
    border-radius: 18px;
    padding: 14px 16px;
    font-size: 14px;
    line-height: 1.6;
}

.support-feedback.error {
    background: var(--support-error-bg);
    border: 1px solid var(--support-error-border);
    color: var(--support-error-text);
}

.support-feedback.success {
    background: rgba(23, 196, 127, 0.1);
    border: 1px solid rgba(23, 196, 127, 0.2);
    color: #117a51;
}

.support-state-card {
    text-align: center;
}

.support-state-icon {
    width: 84px;
    height: 84px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 999px;
    margin-bottom: 20px;
}

.success-icon {
    background: var(--support-success-bg);
    color: var(--support-success);
}

.support-state-card h2 {
    margin: 0 0 12px;
    font-size: 1.8rem;
}

.support-state-card p {
    margin: 0 auto 12px;
    max-width: 560px;
    color: var(--support-muted);
    line-height: 1.7;
}

.support-success-details {
    margin-bottom: 20px;
}

.support-success-actions {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
}

.support-protocol-shell {
    display: inline-flex;
    flex-direction: column;
    gap: 4px;
    padding: 12px 18px;
    border-radius: 18px;
    background: rgba(30, 94, 255, 0.08);
    border: 1px solid rgba(30, 94, 255, 0.14);
}

.support-protocol-label {
    color: var(--support-muted);
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

.support-protocol-shell strong {
    font-size: 1rem;
    letter-spacing: -0.02em;
}

.support-success-actions .support-state-link {
    display: inline-flex;
    align-items: center;
    min-height: 48px;
}

.support-info-list {
    margin: 0;
    padding-left: 18px;
    display: grid;
    gap: 12px;
    color: var(--support-muted);
    line-height: 1.7;
}

.support-faq-list {
    display: grid;
    gap: 12px;
}

.faq-item {
    border: 1px solid var(--support-border);
    border-radius: 20px;
    overflow: hidden;
    background: rgba(255, 255, 255, 0.72);
}

.faq-question {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 18px 20px;
    cursor: pointer;
}

.faq-question h4 {
    margin: 0;
    font-size: 1rem;
}

.faq-question::after {
    content: '+';
    flex-shrink: 0;
    color: var(--support-primary);
    font-weight: 700;
    font-size: 1.25rem;
}

.faq-item.active .faq-question::after {
    content: '−';
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    padding: 0 20px;
    transition: max-height 0.25s ease, padding 0.25s ease;
}

.faq-answer p {
    margin: 0;
    color: var(--support-muted);
    line-height: 1.7;
}

.faq-item.active .faq-answer {
    max-height: 220px;
    padding: 0 20px 18px;
}

.support-closing {
    text-align: center;
    margin: 24px auto 0;
    max-width: 620px;
}

.support-closing p {
    margin: 0 0 6px;
    color: var(--support-muted);
    line-height: 1.7;
}

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

@media (max-width: 720px) {
    .support-page {
        padding: 20px 14px 48px;
    }

    .support-guidance-grid,
    .support-grid {
        grid-template-columns: 1fr;
    }

    .support-card,
    .support-guidance-card {
        border-radius: 24px;
    }

    .support-form-card,
    .support-state-card,
    .support-info-card,
    .support-faq-card {
        padding: 22px 18px;
    }

    .support-hero h1 {
        font-size: 2.35rem;
    }

    .support-hero-actions {
        flex-direction: column;
    }

    .support-help-center-card {
        padding: 20px 18px;
        flex-direction: column;
        align-items: stretch;
    }

    .support-primary-button,
    .support-secondary-button {
        width: 100%;
    }
}