/* ===== Variables ===== */
:root {
    --color-primary: #1a73e8;
    --color-primary-hover: #1557b0;
    --color-text: #202124;
    --color-text-secondary: #4d5156;
    --color-bg: #ffffff;
    --color-bg-secondary: #f8f9fa;
    --color-border: #dadce0;
    --color-success: #0d904f;
    --color-error: #d93025;
    --color-warning: #e37400;
    --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --font-mono: "SF Mono", "Cascadia Code", "Fira Code", Consolas, monospace;
    --radius: 8px;
    --radius-sm: 4px;
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    --max-width: 960px;
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 48px;
}

/* ===== Reset ===== */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: var(--font-family);
    font-size: 14px;
    line-height: 1.6;
    color: var(--color-text);
    background: var(--color-bg);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* ===== Header ===== */
.header {
    border-bottom: 1px solid var(--color-border);
    background: var(--color-bg);
}

.header__nav {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: var(--spacing-md) var(--spacing-lg);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.header__logo {
    font-size: 16px;
    font-weight: 600;
    color: var(--color-text);
    text-decoration: none;
}

.header__menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-lg);
}

.header__link {
    color: var(--color-text-secondary);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    transition: color 0.15s;
}

.header__link:hover {
    color: var(--color-primary);
}

/* ===== Main ===== */
.main {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: var(--spacing-xl) var(--spacing-lg);
    width: 100%;
    flex: 1;
}

/* ===== Footer ===== */
.footer {
    border-top: 1px solid var(--color-border);
    padding: var(--spacing-lg);
    text-align: center;
}

.footer__text {
    color: var(--color-text-secondary);
    font-size: 12px;
}

/* ===== Hero ===== */
.hero {
    text-align: center;
    padding: var(--spacing-xl) 0;
}

.hero__title {
    font-size: 40px;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: var(--spacing-md);
    letter-spacing: -0.5px;
}

.hero__subtitle {
    font-size: 18px;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-xl);
    max-width: 560px;
    margin-left: auto;
    margin-right: auto;
}

.hero__actions {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
}

/* ===== Info ===== */
.info {
    padding: var(--spacing-xl) 0;
}

.info__grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-lg);
}

.info__card {
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: var(--spacing-lg);
}

.info__title {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.info__text {
    color: var(--color-text-secondary);
    font-size: 14px;
}

/* ===== FAQ ===== */
.faq {
    padding: var(--spacing-xl) 0;
}

.faq__title {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: var(--spacing-lg);
}

.faq__item {
    margin-bottom: var(--spacing-lg);
}

.faq__question {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.faq__answer {
    color: var(--color-text-secondary);
    font-size: 14px;
}

/* ===== Info list ===== */
.info__list {
    color: var(--color-text-secondary);
    font-size: 14px;
    padding-left: var(--spacing-lg);
}

.info__list li {
    margin-bottom: var(--spacing-xs);
}

.info__list a {
    color: var(--color-primary);
    text-decoration: none;
}

.info__list a:hover {
    text-decoration: underline;
}

/* ===== Button ===== */
.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: 14px;
    font-weight: 500;
    font-family: inherit;
    border-radius: var(--radius-sm);
    border: 1px solid transparent;
    cursor: pointer;
    text-decoration: none;
    transition: background 0.15s, box-shadow 0.15s;
    line-height: 1.6;
}

.button--primary {
    background: var(--color-primary);
    color: #ffffff;
}

.button--primary:hover {
    background: var(--color-primary-hover);
    box-shadow: var(--shadow);
}

.button--secondary {
    background: var(--color-bg);
    color: var(--color-primary);
    border-color: var(--color-border);
}

.button--secondary:hover {
    background: var(--color-bg-secondary);
}

/* ===== Form ===== */
.form-group {
    margin-bottom: var(--spacing-md);
}

.form-group__label {
    display: block;
    font-size: 12px;
    font-weight: 500;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-xs);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.form-group__hint {
    font-weight: 400;
    text-transform: none;
    letter-spacing: 0;
}

.form-group__input,
.form-group__select,
.form-group__textarea {
    width: 100%;
    padding: var(--spacing-sm) 12px;
    font-size: 14px;
    font-family: inherit;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    background: var(--color-bg);
    color: var(--color-text);
    transition: border-color 0.15s;
}

.form-group__input:focus,
.form-group__select:focus,
.form-group__textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 2px rgba(26, 115, 232, 0.15);
}

.form-group__textarea {
    resize: vertical;
    font-family: var(--font-mono);
    font-size: 13px;
}

/* ===== Header Editor ===== */
.header-editor {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: var(--spacing-sm);
}

.header-editor thead th {
    text-align: left;
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: 11px;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--color-text-secondary);
}

.header-editor thead th:last-child {
    width: 40px;
}

.header-editor tbody td {
    padding: var(--spacing-xs) var(--spacing-sm) var(--spacing-xs) 0;
}

.header-editor tbody td:first-child {
    padding-left: 0;
}

.header-editor__name {
    min-width: 160px;
}

.header-editor__value {
    width: 100%;
}

.header-editor__remove {
    padding: var(--spacing-xs) var(--spacing-sm) !important;
    font-size: 18px;
    line-height: 1;
    color: var(--color-text-secondary);
    border: none !important;
    background: none !important;
}

.header-editor__remove:hover {
    color: var(--color-error);
}

.header-editor__add {
    margin-top: var(--spacing-xs);
    font-size: 13px;
}

/* ===== Outbound ===== */
.outbound__title {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: var(--spacing-lg);
}

.outbound__form {
    margin-bottom: var(--spacing-xl);
}

/* ===== Inbound ===== */
.inbound__title {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: var(--spacing-lg);
}

.inbound__url {
    margin-bottom: var(--spacing-lg);
}

.inbound__url-row {
    display: flex;
    gap: var(--spacing-sm);
}

.inbound__url-input {
    flex: 1;
    font-family: var(--font-mono);
    font-size: 13px;
}

.inbound__config {
    margin-bottom: var(--spacing-lg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: var(--spacing-lg);
}

.inbound__config-summary {
    font-weight: 500;
    cursor: pointer;
    margin-bottom: var(--spacing-md);
    color: var(--color-text-secondary);
}

.inbound__config[open] .inbound__config-summary {
    margin-bottom: var(--spacing-md);
}

.inbound__config-form {
    margin-top: var(--spacing-md);
}

.inbound__events-title {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
}

.inbound__status {
    font-size: 13px;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.inbound__status::before {
    content: "";
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--color-warning);
}

.inbound__status--connected::before {
    background: var(--color-success);
}

.inbound__status--error::before {
    background: var(--color-error);
}

/* ===== Response ===== */
.response {
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    overflow: hidden;
}

.response__title {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
}

.response__meta {
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--color-bg-secondary);
    border-bottom: 1px solid var(--color-border);
    font-size: 13px;
    font-family: var(--font-mono);
    color: var(--color-text-secondary);
}

.response__tabs {
    display: flex;
    border-bottom: 1px solid var(--color-border);
    background: var(--color-bg-secondary);
}

.response__tab {
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: 13px;
    font-weight: 500;
    font-family: inherit;
    background: none;
    border: none;
    border-bottom: 2px solid transparent;
    color: var(--color-text-secondary);
    cursor: pointer;
    transition: color 0.15s, border-color 0.15s;
}

.response__tab:hover {
    color: var(--color-text);
}

.response__tab--active {
    color: var(--color-primary);
    border-bottom-color: var(--color-primary);
}

.response__body {
    padding: var(--spacing-md);
    font-family: var(--font-mono);
    font-size: 13px;
    white-space: pre-wrap;
    word-break: break-word;
    overflow-x: auto;
    max-height: 500px;
    overflow-y: auto;
    background: var(--color-bg);
}

.response__body--hidden {
    display: none;
}

/* ===== Headers Table ===== */
.headers-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
    font-family: var(--font-mono);
    margin-bottom: var(--spacing-md);
}

.headers-table thead th {
    text-align: left;
    padding: var(--spacing-xs) var(--spacing-sm);
    font-weight: 600;
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--color-text-secondary);
    border-bottom: 2px solid var(--color-border);
}

.headers-table tbody td {
    padding: var(--spacing-xs) var(--spacing-sm);
    border-bottom: 1px solid var(--color-border);
    word-break: break-all;
}

.headers-table tbody td:first-child {
    font-weight: 500;
    white-space: nowrap;
    color: var(--color-text);
}

.headers-table tbody td:last-child {
    color: var(--color-text-secondary);
}

/* ===== Response pre ===== */
.response__pre {
    margin: 0;
    font-family: var(--font-mono);
    font-size: 13px;
    white-space: pre-wrap;
    word-break: break-word;
}

.response__method {
    font-family: var(--font-mono);
    font-size: 13px;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    color: var(--color-text);
}

/* ===== Status badges ===== */
.status--success {
    color: var(--color-success);
}

.status--error {
    color: var(--color-error);
}

/* ===== Responsive ===== */
@media (max-width: 600px) {
    .hero__title {
        font-size: 28px;
    }

    .hero__subtitle {
        font-size: 16px;
    }

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

    .header__nav {
        flex-direction: column;
        gap: var(--spacing-sm);
    }

    .inbound__url-row {
        flex-direction: column;
    }
}