/* ==========================================================================
   Help Center + Support — matches the TypeMaster design system
   Uses shared tokens: --surface, --border, --radius, --shadow-*, buttons, .panel
   ========================================================================== */

/* ---------------- Breadcrumb ---------------- */
.help-breadcrumb {
    display: flex; align-items: center; gap: 10px;
    font-size: 13.5px; color: var(--text-muted); margin-bottom: 18px;
}
.help-breadcrumb a { color: var(--text-muted); display: inline-flex; align-items: center; gap: 7px; transition: color .18s; }
.help-breadcrumb a:hover { color: var(--text); }
.help-breadcrumb .sep { font-size: 10px; opacity: .6; }
.help-breadcrumb [aria-current] { color: var(--text); font-weight: 600; }

/* ---------------- Hub search ---------------- */
.help-search {
    display: flex; align-items: center; gap: 12px;
    padding: 4px 18px; margin-bottom: 22px;
}
.help-search > i { color: var(--text-muted); font-size: 15px; }
.help-search-input {
    flex: 1; background: transparent; border: none; outline: none;
    color: var(--text); font-size: 15px; padding: 14px 0;
    font-family: var(--font-sans);
}
.help-search-input::placeholder { color: var(--text-muted); }

/* ---------------- Hub topic grid ---------------- */
.help-grid {
    display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-bottom: 24px;
}
.help-card {
    display: flex; align-items: flex-start; gap: 14px;
    padding: 22px; border-radius: var(--radius);
    background: var(--surface); border: 1px solid var(--border);
    color: var(--text); position: relative; overflow: hidden;
    transition: transform .22s ease, border-color .22s ease, box-shadow .22s ease;
}
.help-card:hover { transform: translateY(-5px); border-color: var(--border-strong); box-shadow: var(--shadow-md); color: var(--text); }
.help-card-ico {
    width: 46px; height: 46px; flex-shrink: 0; border-radius: 12px;
    display: grid; place-items: center; font-size: 19px;
    background: color-mix(in srgb, var(--primary) 16%, transparent); color: var(--primary);
}
.help-card:nth-child(2n) .help-card-ico { background: color-mix(in srgb, var(--accent) 18%, transparent); color: var(--accent); }
.help-card-body { display: flex; flex-direction: column; gap: 4px; min-width: 0; }
.help-card-body b { font-family: var(--font-display); font-size: 16px; }
.help-card-body span { color: var(--text-muted); font-size: 13.5px; line-height: 1.5; }
.help-card-arrow {
    position: absolute; right: 18px; top: 22px; color: var(--text-muted);
    font-size: 13px; opacity: 0; transform: translateX(-6px); transition: .22s;
}
.help-card:hover .help-card-arrow { opacity: .85; transform: translateX(0); }
.help-empty { text-align: center; color: var(--text-muted); padding: 20px 0 30px; }

/* ---------------- Contact strip (shared CTA) ---------------- */
.help-contact-strip {
    display: flex; align-items: center; justify-content: space-between;
    gap: 20px; flex-wrap: wrap; margin-top: 24px;
}
.help-contact-strip h4 { font-family: var(--font-display); font-size: 18px; margin: 0 0 4px; display: flex; align-items: center; gap: 10px; }
.help-contact-strip h4 i { color: var(--primary); }

/* ---------------- Steps (how-it-works / cert) ---------------- */
.help-steps { list-style: none; margin: 0 0 26px; padding: 0; display: flex; flex-direction: column; gap: 12px; }
.help-step {
    display: flex; align-items: flex-start; gap: 16px;
    padding: 20px; border-radius: var(--radius);
    background: var(--surface); border: 1px solid var(--border);
    transition: border-color .2s, box-shadow .2s;
}
.help-step:hover { border-color: var(--border-strong); box-shadow: var(--shadow-sm); }
.help-step-num {
    width: 34px; height: 34px; flex-shrink: 0; border-radius: 10px;
    display: grid; place-items: center; font-family: var(--font-display); font-weight: 700;
    color: #fff; background: linear-gradient(135deg, var(--primary), var(--primary-700));
}
.help-step-ico { width: 26px; text-align: center; color: var(--accent); font-size: 18px; padding-top: 5px; }
.help-step-text { display: flex; flex-direction: column; gap: 4px; }
.help-step-text b { font-family: var(--font-display); font-size: 16px; }
.help-step-text span { color: var(--text-muted); font-size: 14px; line-height: 1.6; }

/* ---------------- Formula callouts ---------------- */
.help-formula-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-bottom: 8px; }
.help-formula h4 { font-family: var(--font-display); font-size: 17px; margin: 12px 0 10px; }
.help-formula-tag {
    display: inline-block; font-size: 11px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase;
    color: var(--primary); background: color-mix(in srgb, var(--primary) 14%, transparent);
    border: 1px solid color-mix(in srgb, var(--primary) 30%, transparent);
    padding: 4px 12px; border-radius: 999px;
}
.help-formula-tag.accent { color: var(--accent); background: color-mix(in srgb, var(--accent) 14%, transparent); border-color: color-mix(in srgb, var(--accent) 30%, transparent); }
.help-code {
    display: block; font-family: var(--font-mono, ui-monospace, monospace);
    background: var(--surface-2); border: 1px solid var(--border);
    border-radius: var(--radius-sm); padding: 12px 14px; margin-bottom: 12px;
    color: var(--text); font-size: 13.5px; overflow-x: auto;
}

/* ---------------- Trust badges (cert page) ---------------- */
.help-trust-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.help-trust {
    text-align: center; padding: 24px 18px; border-radius: var(--radius);
    background: var(--surface); border: 1px solid var(--border);
}
.help-trust i { font-size: 26px; color: var(--primary); margin-bottom: 12px; display: block; }
.help-trust b { display: block; font-family: var(--font-display); font-size: 15px; margin-bottom: 4px; }
.help-trust span { color: var(--text-muted); font-size: 13px; line-height: 1.5; display: block; }

/* ---------------- Keyboard shortcuts ---------------- */
.help-shortcut-groups { display: flex; flex-direction: column; gap: 16px; }
.help-keys { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; }
.help-keys li {
    display: flex; align-items: center; justify-content: space-between; gap: 16px;
    padding: 12px 0; border-bottom: 1px solid var(--border);
}
.help-keys li:last-child { border-bottom: none; }
.help-key-combo { display: inline-flex; align-items: center; gap: 6px; flex-shrink: 0; }
.help-key-plus { color: var(--text-muted); font-size: 12px; }
.help-key-desc { color: var(--text-muted); font-size: 14px; text-align: right; }
kbd {
    display: inline-block; min-width: 30px; text-align: center;
    font-family: var(--font-mono, ui-monospace, monospace); font-size: 12.5px; font-weight: 600;
    color: var(--text); background: var(--surface-2);
    border: 1px solid var(--border-strong); border-bottom-width: 2px;
    border-radius: 7px; padding: 5px 9px; line-height: 1;
}

/* ---------------- Video tutorials ---------------- */
.help-video-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.help-video {
    border-radius: var(--radius); overflow: hidden;
    background: var(--surface); border: 1px solid var(--border);
    transition: transform .22s, border-color .22s, box-shadow .22s;
}
.help-video:hover { transform: translateY(-5px); border-color: var(--border-strong); box-shadow: var(--shadow-md); }
.help-video-thumb {
    position: relative; aspect-ratio: 16 / 9; display: grid; place-items: center;
    background: linear-gradient(135deg, color-mix(in srgb, var(--primary) 22%, var(--surface-2)), color-mix(in srgb, var(--accent) 16%, var(--surface-2)));
    color: color-mix(in srgb, var(--text) 55%, transparent); font-size: 40px;
}
.help-video-play {
    position: absolute; width: 52px; height: 52px; border-radius: 50%;
    display: grid; place-items: center; font-size: 16px; color: var(--primary);
    background: var(--surface-solid); box-shadow: var(--shadow-md);
    transition: transform .2s;
}
.help-video:hover .help-video-play { transform: scale(1.08); }
.help-video-soon {
    position: absolute; top: 10px; right: 10px; font-size: 10.5px; font-weight: 700;
    letter-spacing: .05em; text-transform: uppercase; color: var(--text);
    background: color-mix(in srgb, var(--bg-2) 82%, transparent); border: 1px solid var(--border-strong);
    padding: 3px 9px; border-radius: 999px; backdrop-filter: blur(6px);
}
.help-video-meta { padding: 16px 18px; }
.help-video-meta b { display: block; font-family: var(--font-display); font-size: 15px; margin-bottom: 4px; }
.help-video-meta span { color: var(--text-muted); font-size: 13px; line-height: 1.5; }

/* ---------------- Support layout ---------------- */
.help-support-layout { display: grid; grid-template-columns: 1.7fr 1fr; gap: 20px; align-items: start; margin-bottom: 24px; }
.help-support-side { display: flex; flex-direction: column; gap: 20px; }

/* Tabs */
.help-tabs { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 22px; }
.help-tab {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 10px 16px; border-radius: 10px; font-weight: 600; font-size: 14px;
    color: var(--text-muted); background: var(--surface); border: 1px solid var(--border);
    cursor: pointer; transition: .2s;
}
.help-tab:hover { color: var(--text); border-color: var(--border-strong); }
.help-tab.is-active {
    color: #fff; background: linear-gradient(135deg, var(--primary), var(--primary-700));
    border-color: transparent; box-shadow: 0 8px 20px color-mix(in srgb, var(--primary) 32%, transparent);
}

/* Form */
.help-form-row, .help-field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.help-field { display: flex; flex-direction: column; gap: 7px; margin-bottom: 16px; }
.help-field label { font-size: 13px; font-weight: 600; color: var(--text); }
.help-field input, .help-field textarea {
    width: 100%; background: var(--input-bg); color: var(--text);
    border: 1px solid var(--border); border-radius: var(--radius-sm);
    padding: 12px 14px; font-size: 14.5px; font-family: var(--font-sans);
    transition: border-color .18s, box-shadow .18s;
}
.help-field input:focus, .help-field textarea:focus {
    outline: none; border-color: var(--primary);
    box-shadow: 0 0 0 3px color-mix(in srgb, var(--primary) 22%, transparent);
}
.help-field textarea { resize: vertical; min-height: 120px; }
.help-form-footer { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; margin-top: 4px; }
.help-form-note { font-size: 12.5px; color: var(--text-muted); margin: 0; display: inline-flex; align-items: center; gap: 7px; }
.help-form-success {
    display: flex; align-items: center; gap: 14px; margin-top: 18px;
    padding: 16px; border-radius: var(--radius-sm);
    background: color-mix(in srgb, var(--success) 12%, transparent);
    border: 1px solid color-mix(in srgb, var(--success) 38%, transparent);
}
.help-form-success i { font-size: 22px; color: var(--success); }
.help-form-success b { display: block; font-size: 14px; }
.help-form-success span { color: var(--text-muted); font-size: 13px; }

/* Channels */
.help-channel {
    display: flex; align-items: center; gap: 13px; padding: 12px;
    border-radius: var(--radius-sm); color: var(--text);
    border: 1px solid transparent; transition: .18s;
}
.help-channel:hover { color: var(--text); background: var(--surface); border-color: var(--border); transform: translateX(3px); }
.help-channel-ico { width: 40px; height: 40px; flex-shrink: 0; border-radius: 11px; display: grid; place-items: center; font-size: 17px; color: #fff; }
.help-channel-ico.email { background: linear-gradient(135deg, var(--primary), var(--primary-700)); }
.help-channel-ico.tg { background: linear-gradient(135deg, #2aabee, #229ed9); }
.help-channel-ico.dc { background: linear-gradient(135deg, #5865f2, #4752c4); }
.help-channel b { display: block; font-size: 14.5px; font-family: var(--font-display); }
.help-channel small { color: var(--text-muted); font-size: 12.5px; }

/* Office hours */
.help-hours { list-style: none; margin: 0; padding: 0; }
.help-hours li { display: flex; justify-content: space-between; padding: 10px 0; border-bottom: 1px solid var(--border); font-size: 14px; }
.help-hours li:last-child { border-bottom: none; }
.help-hours li span { color: var(--text-muted); }
.help-hours li b.muted { color: var(--text-muted); font-weight: 500; }
.help-hours-note { margin: 12px 0 0; font-size: 12.5px; color: var(--text-muted); display: flex; align-items: center; gap: 7px; }

.help-inline-link { display: inline-flex; align-items: center; gap: 8px; margin-top: 14px; color: var(--primary); font-weight: 600; font-size: 14px; }
.help-inline-link:hover { color: var(--primary); gap: 11px; }

/* ==========================================================================
   Responsive
   ========================================================================== */
@media (max-width: 960px) {
    .help-grid, .help-video-grid, .help-trust-grid { grid-template-columns: repeat(2, 1fr); }
    .help-support-layout { grid-template-columns: 1fr; }
    .help-formula-grid { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
    .help-grid, .help-video-grid, .help-trust-grid { grid-template-columns: 1fr; }
    .help-field-row, .help-form-row { grid-template-columns: 1fr; }
    .help-contact-strip { flex-direction: column; align-items: flex-start; }
    .help-contact-strip .btn { width: 100%; text-align: center; }
    .help-keys li { flex-direction: column; align-items: flex-start; gap: 6px; }
    .help-key-desc { text-align: left; }
    .help-card-arrow { display: none; }
}