/* =====================================================================
 * /features (서비스 소개)
 *  - depends on common.css, index.css, site.css
 * ===================================================================== */

/* ---------- Hero mock ---------- */
.fx-mock { position: relative; padding: 8px 8px 40px 0; }
.fx-window {
    background: var(--surface-card);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
}
.fx-window-bar {
    display: flex; align-items: center; gap: 6px;
    padding: 10px 14px; background: var(--surface-subtle);
    border-bottom: 1px solid var(--border-default);
}
.fx-window-bar > span { width: 10px; height: 10px; border-radius: 50%; background: var(--gray-300); }
.fx-url {
    margin-left: 10px; flex: 1; min-width: 0;
    background: var(--surface-card); border: 1px solid var(--border-default); border-radius: var(--radius-pill);
    padding: 3px 12px; font-size: var(--fs-xs); color: var(--text-tertiary);
    white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.fx-url i { margin-right: 6px; color: var(--success-color); }

.fx-booking { display: grid; grid-template-columns: 1fr 1fr; min-height: 300px; }
.fx-booking-info { padding: 24px; border-right: 1px solid var(--border-default); }
.fx-avatar {
    width: 44px; height: 44px; border-radius: 50%;
    background: var(--primary-soft); color: var(--primary-color); border: 1px solid var(--primary-border);
    display: flex; align-items: center; justify-content: center; font-weight: 800; font-size: var(--fs-sm);
    margin-bottom: 14px;
}
.fx-muted { color: var(--text-tertiary); font-size: var(--fs-sm); }
.fx-event { font-size: var(--fs-xl); font-weight: 800; color: var(--text-strong); letter-spacing: -0.02em; margin: 4px 0 16px; }
.fx-meta { list-style: none; margin: 0; padding: 0; }
.fx-meta li { display: flex; align-items: center; gap: 10px; color: var(--text-secondary); font-size: var(--fs-base); padding: 4px 0; }
.fx-meta i { width: 16px; color: var(--text-tertiary); text-align: center; }

.fx-booking-slots { padding: 24px; display: flex; flex-direction: column; gap: 8px; }
.fx-slots-head { display: flex; flex-direction: column; margin-bottom: 6px; }
.fx-slots-head strong { color: var(--text-strong); font-size: var(--fs-md); }
.fx-slot {
    height: 40px; border: 1px solid var(--primary-border); border-radius: var(--radius-md);
    display: flex; align-items: center; justify-content: center; gap: 8px;
    color: var(--primary-color); font-weight: 700; font-size: var(--fs-base);
    font-variant-numeric: tabular-nums;
}
.fx-slot.is-selected { border-color: transparent; display: grid; grid-template-columns: 1fr 1fr; gap: 6px; }
.fx-slot.is-selected > span {
    height: 40px; display: flex; align-items: center; justify-content: center; border-radius: var(--radius-md);
    background: var(--gray-700); color: #fff;
}
.fx-slot.is-selected .fx-slot-cta { background: var(--primary-color); }

.fx-toast {
    position: absolute; left: -12px; bottom: 0;
    display: flex; align-items: center; gap: 12px;
    background: var(--surface-card); border: 1px solid var(--border-default);
    border-radius: var(--radius-lg); box-shadow: var(--shadow-lg);
    padding: 12px 16px; max-width: 320px;
}
.fx-toast strong { display: block; color: var(--text-strong); font-size: var(--fs-base); }
.fx-toast span { display: block; color: var(--text-tertiary); font-size: var(--fs-sm); }
.fx-toast-icon {
    width: 32px; height: 32px; border-radius: 50%; flex-shrink: 0;
    background: var(--success-soft); color: var(--success-color); border: 1px solid var(--success-border);
    display: flex; align-items: center; justify-content: center; font-size: 0.8125rem;
}

/* ---------- Sub nav ---------- */
.fx-subnav {
    position: sticky; top: 64px; z-index: 900;
    background: var(--surface-card);
    background: color-mix(in srgb, var(--surface-card) 92%, transparent);
    -webkit-backdrop-filter: saturate(180%) blur(8px);
            backdrop-filter: saturate(180%) blur(8px);
    border-bottom: 1px solid var(--border-default);
}
.fx-subnav ul {
    display: flex; gap: 4px; list-style: none; margin: 0; padding: 0;
    overflow-x: auto; scrollbar-width: none;
}
.fx-subnav ul::-webkit-scrollbar { display: none; }
.fx-subnav a {
    display: inline-flex; align-items: center; height: 52px; padding: 0 14px;
    color: var(--text-secondary); font-weight: 600; font-size: var(--fs-base);
    text-decoration: none; white-space: nowrap;
    border-bottom: 2px solid transparent;
    transition: color .15s, border-color .15s;
}
.fx-subnav a:hover { color: var(--text-strong); }
.fx-subnav a.active { color: var(--primary-color); border-bottom-color: var(--primary-color); }

/* ---------- Feature cards ---------- */
.fx-card {
    height: 100%;
    background: var(--surface-card);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-xl);
    padding: 28px;
    transition: border-color .15s, box-shadow .15s;
}
.fx-card:hover { border-color: var(--border-strong); box-shadow: var(--shadow-md); }
.fx-card-icon {
    width: 44px; height: 44px; border-radius: var(--radius-lg);
    background: var(--primary-soft); color: var(--primary-color); border: 1px solid var(--primary-border);
    display: flex; align-items: center; justify-content: center; font-size: 1.125rem;
    margin-bottom: 18px;
}
.fx-card h3 { font-size: var(--fs-lg); font-weight: 800; color: var(--text-strong); letter-spacing: -0.02em; margin: 0 0 8px; }
.fx-card p { color: var(--text-secondary); font-size: var(--fs-md); line-height: 1.7; margin: 0 0 16px; word-break: keep-all; }

/* ---------- Highlights ---------- */
.fx-highlight { margin-top: 96px; }
.fx-kicker { display: block; color: var(--primary-color); font-weight: 700; font-size: var(--fs-base); margin-bottom: 10px; }
.fx-highlight-title { font-size: 1.875rem; font-weight: 800; letter-spacing: -0.03em; line-height: 1.3; color: var(--text-strong); margin: 0 0 16px; word-break: keep-all; }
.fx-highlight-text { color: var(--text-secondary); font-size: var(--fs-lg); line-height: 1.75; margin: 0 0 20px; word-break: keep-all; }
.fx-checks { list-style: none; padding: 0; margin: 0; }
.fx-checks li { display: flex; align-items: center; flex-wrap: wrap; gap: 10px; padding: 6px 0; color: var(--text-primary); font-weight: 500; }
.fx-checks li > i {
    width: 22px; height: 22px; border-radius: 50%; flex-shrink: 0;
    background: var(--primary-soft); color: var(--primary-color);
    display: inline-flex; align-items: center; justify-content: center; font-size: 0.6875rem;
}

.fx-panel {
    background: var(--surface-card); border: 1px solid var(--border-default);
    border-radius: var(--radius-xl); box-shadow: var(--shadow-md); padding: 24px;
}
.fx-panel-head { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 8px; margin-bottom: 20px; }
.fx-panel-head strong { color: var(--text-strong); }
.fx-legend { display: inline-flex; align-items: center; gap: 6px; color: var(--text-tertiary); font-size: var(--fs-sm); }
.fx-legend i { display: inline-block; width: 10px; height: 10px; border-radius: 3px; margin-left: 8px; }
.fx-week { display: grid; grid-template-columns: repeat(5, 1fr); gap: 10px; }
.fx-week-col { display: flex; flex-direction: column; gap: 8px; }
.fx-week-col span { text-align: center; color: var(--text-tertiary); font-size: var(--fs-sm); font-weight: 600; }
.fx-week-col i, .fx-legend i {
    height: 34px; border-radius: var(--radius-md);
    background: var(--surface-subtle); border: 1px dashed var(--border-default);
}
.fx-legend i { height: 10px; border-style: solid; }
.fx-week-col i.is-busy, .fx-legend i.is-busy {
    background: repeating-linear-gradient(45deg, var(--gray-200), var(--gray-200) 4px, var(--gray-100) 4px, var(--gray-100) 8px);
    border: 1px solid var(--border-strong);
}
.fx-week-col i.is-open, .fx-legend i.is-open { background: var(--primary-soft); border: 1px solid var(--primary-border); }

.fx-flow { list-style: none; margin: 0; padding: 0; position: relative; }
.fx-flow::before { content: ''; position: absolute; left: 36px; top: 24px; bottom: 24px; width: 2px; background: var(--border-default); }
.fx-flow li {
    position: relative; display: flex; align-items: center; gap: 16px;
    background: var(--surface-card); border: 1px solid var(--border-default); border-radius: var(--radius-lg);
    padding: 12px 16px; margin-bottom: 10px; margin-left: 0;
}
.fx-flow li:last-child { margin-bottom: 0; }
.fx-flow .fx-flow-icon {
    width: 40px; height: 40px; flex-shrink: 0; position: relative; z-index: 1;
    border-radius: 10px; background: var(--primary-color); color: #fff;
    display: inline-flex; align-items: center; justify-content: center; line-height: 1;
}
.fx-flow .fx-flow-icon i { font-size: 1.1rem; line-height: 1; color: #fff; }
.fx-flow strong { display: block; color: var(--text-strong); font-size: var(--fs-md); }
.fx-flow li > div > span { display: block; color: var(--text-tertiary); font-size: var(--fs-sm); }

/* ---------- Steps ---------- */
.fx-steps { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; counter-reset: none; position: relative; }
.fx-step {
    position: relative; background: var(--surface-card);
    border: 1px solid var(--border-default); border-radius: var(--radius-xl); padding: 28px 24px;
}
.fx-step:not(:last-child)::after {
    content: '\f054'; font-family: 'Font Awesome 6 Free'; font-weight: 900; font-size: 0.75rem;
    position: absolute; right: -16px; top: 50%; transform: translateY(-50%);
    width: 24px; height: 24px; border-radius: 50%; z-index: 1;
    background: var(--surface-card); border: 1px solid var(--border-default); color: var(--text-tertiary);
    display: flex; align-items: center; justify-content: center;
}
.fx-step-no { display: block; font-size: var(--fs-sm); font-weight: 800; color: var(--primary-color); letter-spacing: .04em; margin-bottom: 14px; font-variant-numeric: tabular-nums; }
.fx-step-icon { font-size: 1.5rem; color: var(--text-strong); margin-bottom: 14px; }
.fx-step h3 { font-size: var(--fs-lg); font-weight: 800; color: var(--text-strong); margin: 0 0 8px; letter-spacing: -0.02em; }
.fx-step p { color: var(--text-secondary); font-size: var(--fs-base); line-height: 1.7; margin: 0; word-break: keep-all; }

/* ---------- Meeting types ---------- */
.fx-type {
    height: 100%; background: var(--surface-card);
    border: 1px solid var(--border-default); border-radius: var(--radius-xl); padding: 28px;
}
.fx-type-diagram {
    display: flex; align-items: center; justify-content: center; gap: 12px;
    height: 132px; margin-bottom: 22px; border-radius: var(--radius-lg);
    background: var(--surface-subtle); border: 1px solid var(--border-subtle);
}
.fx-node {
    width: 36px; height: 36px; border-radius: 50%;
    background: var(--surface-card); border: 1px solid var(--border-strong); color: var(--text-tertiary);
    display: inline-flex; align-items: center; justify-content: center; font-size: 0.8125rem;
}
.fx-node.is-host { background: var(--primary-color); border-color: var(--primary-color); color: #fff; }
.fx-node-group { display: inline-flex; flex-direction: column; gap: 6px; }
.fx-edge { width: 48px; height: 2px; background: var(--border-strong); position: relative; display: inline-flex; align-items: center; justify-content: center; }
.fx-edge.is-rotate i {
    width: 24px; height: 24px; border-radius: 50%; font-size: 0.6875rem;
    background: var(--primary-soft); color: var(--primary-color); border: 1px solid var(--primary-border);
    display: inline-flex; align-items: center; justify-content: center;
}
.fx-type-head { display: flex; align-items: center; justify-content: space-between; gap: 8px; margin-bottom: 8px; }
.fx-type-head h3 { font-size: var(--fs-xl); font-weight: 800; color: var(--text-strong); margin: 0; letter-spacing: -0.02em; }
.fx-type p { color: var(--text-secondary); font-size: var(--fs-md); line-height: 1.7; margin: 0 0 16px; word-break: keep-all; }
.fx-uses { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 6px; }
.fx-uses li { font-size: var(--fs-sm); color: var(--text-secondary); background: var(--surface-subtle); border: 1px solid var(--border-default); border-radius: var(--radius-pill); padding: 2px 10px; }

/* ---------- Integrations ---------- */
.fx-int-groups { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.fx-int-group {
    background: var(--surface-card); border: 1px solid var(--border-default);
    border-radius: var(--radius-xl); padding: 24px;
}
.fx-int-group h3 { font-size: var(--fs-md); font-weight: 800; color: var(--text-strong); margin: 0 0 14px; display: flex; align-items: center; gap: 8px; }
.fx-int-group h3 i { color: var(--text-tertiary); }
.fx-int-list { list-style: none; margin: 0; padding: 0; }
.fx-int-list li {
    display: flex; align-items: center; gap: 12px;
    padding: 9px 0; border-top: 1px solid var(--border-subtle);
    color: var(--text-primary); font-weight: 600; font-size: var(--fs-base);
}
.fx-int-list li:first-child { border-top: none; }
.fx-int-list .plan-tag { margin-left: auto; }
.fx-logo {
    width: 32px; height: 32px; flex-shrink: 0; border-radius: var(--radius-md);
    background: var(--bg, var(--surface-subtle)); border: 1px solid var(--border-default);
    color: var(--c); display: inline-flex; align-items: center; justify-content: center; font-size: 0.9375rem;
}
.fx-logo--text { font-weight: 900; font-size: 0.9375rem; font-family: Arial, sans-serif; }
[data-theme="dark"] .fx-logo { background: var(--bg, #f1f3f6); }
.fx-int-group--cta { background: var(--primary-soft); border-color: var(--primary-border); display: flex; flex-direction: column; }
.fx-int-group--cta p { color: var(--text-secondary); font-size: var(--fs-base); line-height: 1.7; margin: 0 0 16px; word-break: keep-all; }
.fx-link { margin-top: auto; color: var(--primary-color); font-weight: 700; font-size: var(--fs-base); text-decoration: none; display: inline-flex; align-items: center; gap: 8px; }
.fx-link:hover { text-decoration: underline; color: var(--primary-color); }
.fx-footnote { margin: 24px 0 0; text-align: center; color: var(--text-tertiary); font-size: var(--fs-sm); word-break: keep-all; }
.fx-footnote a { color: var(--primary-color); }

/* ---------- Team ---------- */
.fx-team-points { list-style: none; margin: 32px 0 0; padding: 0; }
.fx-team-points li { display: flex; gap: 14px; padding: 14px 0; border-top: 1px solid var(--border-default); }
.fx-team-points strong { color: var(--text-strong); font-size: var(--fs-md); }
.fx-team-points p { color: var(--text-secondary); font-size: var(--fs-base); line-height: 1.7; margin: 4px 0 0; word-break: keep-all; }
.fx-team-icon {
    width: 36px; height: 36px; flex-shrink: 0; border-radius: var(--radius-md);
    background: var(--primary-soft); color: var(--primary-color);
    display: inline-flex; align-items: center; justify-content: center;
}
.fx-table-wrap {
    background: var(--surface-card); border: 1px solid var(--border-default);
    border-radius: var(--radius-xl); overflow-x: auto; box-shadow: var(--shadow-sm);
}
.fx-roles { width: 100%; border-collapse: collapse; min-width: 560px; }
.fx-roles caption { caption-side: top; padding: 18px 20px 6px; font-weight: 800; color: var(--text-strong); font-size: var(--fs-md); }
.fx-roles thead th {
    padding: 12px 10px; text-align: center; font-size: var(--fs-base); font-weight: 700; color: var(--text-strong);
    background: var(--surface-subtle); border-top: 1px solid var(--border-default); border-bottom: 1px solid var(--border-default);
}
.fx-roles thead th:first-child { text-align: left; padding-left: 20px; }
.fx-roles thead small { display: block; font-size: 0.6875rem; font-weight: 600; color: var(--text-tertiary); letter-spacing: .04em; }
.fx-roles tbody th { padding: 12px 10px 12px 20px; font-weight: 500; font-size: var(--fs-base); color: var(--text-primary); text-align: left; }
.fx-roles tbody td { padding: 12px 10px; text-align: center; }
.fx-roles tbody tr + tr > * { border-top: 1px solid var(--border-subtle); }
.fx-roles .fa-check { color: var(--primary-color); }
.fx-no { color: var(--text-disabled); }

/* ---------- Security ---------- */
.fx-sec {
    height: 100%; background: var(--surface-card);
    border: 1px solid var(--border-default); border-radius: var(--radius-xl); padding: 28px;
}
.fx-sec > i { font-size: 1.25rem; color: var(--primary-color); margin-bottom: 16px; display: block; }
.fx-sec h3 { font-size: var(--fs-lg); font-weight: 800; color: var(--text-strong); margin: 0 0 8px; letter-spacing: -0.02em; display: flex; align-items: center; flex-wrap: wrap; }
.fx-sec p { color: var(--text-secondary); font-size: var(--fs-md); line-height: 1.7; margin: 0; word-break: keep-all; }
.fx-privacy {
    margin-top: 28px; display: flex; align-items: center; justify-content: space-between; gap: 20px;
    background: var(--surface-card); border: 1px solid var(--border-default); border-radius: var(--radius-xl);
    padding: 24px 28px;
}
.fx-privacy strong { color: var(--text-strong); font-size: var(--fs-md); }
.fx-privacy p { color: var(--text-secondary); font-size: var(--fs-base); margin: 4px 0 0; word-break: keep-all; }

/* ---------- Enterprise ---------- */
.fx-ent { padding: var(--mk-section-y) 0; background: var(--mk-dark); color: #fff; }
.fx-ent-badge {
    display: inline-block; padding: 3px 10px; border-radius: var(--radius-sm);
    border: 1px solid rgba(255,255,255,.25); color: #c7d6f7; font-size: var(--fs-sm); font-weight: 700; margin-bottom: 18px;
}
.fx-ent-title { font-size: 2.25rem; font-weight: 800; letter-spacing: -0.035em; line-height: 1.25; color: #fff; margin: 0 0 16px; word-break: keep-all; }
.fx-ent-text { color: var(--mk-dark-text); font-size: var(--fs-lg); line-height: 1.75; margin: 0 0 28px; word-break: keep-all; }
.fx-ent-grid { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; background: var(--mk-dark-line); border: 1px solid var(--mk-dark-line); border-radius: var(--radius-xl); overflow: hidden; }
.fx-ent-grid li { background: var(--mk-dark); padding: 24px; }
.fx-ent-grid i { color: #8fb0f5; font-size: 1.125rem; margin-bottom: 12px; display: block; }
.fx-ent-grid strong { display: block; color: #fff; font-size: var(--fs-md); margin-bottom: 4px; }
.fx-ent-grid span { display: block; color: var(--mk-dark-muted); font-size: var(--fs-base); line-height: 1.6; word-break: keep-all; }
.fx-ent a:focus-visible { outline-color: #fff; }

/* ---------- Responsive ---------- */
@media (max-width: 1199.98px) {
    .fx-steps { grid-template-columns: repeat(2, 1fr); }
    .fx-step:nth-child(2)::after { display: none; }
    .fx-int-groups { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 991.98px) {
    .fx-subnav { top: 64px; }
    .fx-highlight { margin-top: 64px; }
    .fx-highlight-title { font-size: 1.625rem; }
    .fx-ent-title { font-size: 1.875rem; }
    .fx-mock { max-width: 560px; margin: 0 auto; }
}
@media (max-width: 767.98px) {
    .fx-booking { grid-template-columns: 1fr; }
    .fx-booking-info { border-right: none; border-bottom: 1px solid var(--border-default); padding: 20px; }
    .fx-booking-slots { padding: 20px; }
    .fx-mock { padding: 0 0 76px; }
    .fx-toast { left: 8px; right: 8px; max-width: none; }
    .fx-steps { grid-template-columns: 1fr; }
    .fx-step::after { display: none !important; }
    .fx-int-groups { grid-template-columns: 1fr; }
    .fx-ent-grid { grid-template-columns: 1fr; }
    .fx-privacy { flex-direction: column; align-items: flex-start; padding: 20px; }
    .fx-privacy .mk-btn { width: 100%; }
    .fx-card, .fx-type, .fx-sec { padding: 22px; }
    .fx-highlight-text, .fx-ent-text { font-size: var(--fs-md); }
    .fx-subnav a { height: 46px; padding: 0 12px; }
}