/*
 * random-number.css
 * Premium Random Number Generator - Light theme, purple/blue accent
 * Scoped under .rng-wrap - zero global side-effects
 * ──────────────────────────────────────────────────────────────────
 */

/* ═══════════════════════════════════════════════════════════════════
   DESIGN TOKENS
══════════════════════════════════════════════════════════════════ */
.rng-wrap {
    /* Brand - purple → blue gradient palette */
    --rng-purple:        #7c3aed;
    --rng-purple-dark:   #6d28d9;
    --rng-purple-mid:    #8b5cf6;
    --rng-purple-light:  #ede9fe;
    --rng-purple-xlight: #f5f3ff;
    --rng-blue:          #2563eb;
    --rng-blue-light:    #dbeafe;

    /* Gradient */
    --rng-gradient:      linear-gradient(135deg, #7c3aed 0%, #2563eb 100%);
    --rng-gradient-soft: linear-gradient(135deg, #ede9fe 0%, #dbeafe 100%);

    /* Neutrals */
    --rng-text:          #0f172a;
    --rng-text-2:        #334155;
    --rng-text-3:        #64748b;
    --rng-text-4:        #94a3b8;
    --rng-border:        #e2e8f0;
    --rng-border-focus:  #8b5cf6;
    --rng-bg:            #ffffff;
    --rng-bg-card:       #f8fafc;
    --rng-bg-input:      #ffffff;

    /* Status */
    --rng-green:         #16a34a;
    --rng-green-light:   #dcfce7;
    --rng-red:           #dc2626;
    --rng-red-light:     #fee2e2;
    --rng-amber:         #d97706;
    --rng-amber-light:   #fef3c7;

    /* Shadows */
    --rng-shadow-sm:     0 1px 3px rgba(0,0,0,.07);
    --rng-shadow-md:     0 4px 16px rgba(0,0,0,.09);
    --rng-shadow-lg:     0 8px 32px rgba(0,0,0,.12);
    --rng-shadow-purple: 0 4px 18px rgba(124,58,237,.28);

    /* Shape */
    --rng-radius:        14px;
    --rng-radius-sm:     8px;
    --rng-radius-lg:     20px;
    --rng-radius-xl:     28px;

    /* Motion */
    --rng-ease:          .17s ease;
    --rng-font-mono:     'DM Mono', 'Roboto Mono', 'Courier New', monospace;
}

/* ═══════════════════════════════════════════════════════════════════
   RESET / BASE
══════════════════════════════════════════════════════════════════ */
.rng-wrap *,
.rng-wrap *::before,
.rng-wrap *::after { box-sizing: border-box; margin: 0; padding: 0; }

.rng-wrap {
    font-family: 'DM Sans', system-ui, -apple-system, sans-serif;
    color: var(--rng-text);
    background: transparent;
    max-width: 1080px;
    margin: 0 auto;
    padding: 0 0 130px;
}

/* ═══════════════════════════════════════════════════════════════════
   HERO
══════════════════════════════════════════════════════════════════ */
.rng-hero {
    text-align: center;
    padding: 44px 20px 36px;
}

.rng-badge {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    background: var(--rng-purple-light);
    color: var(--rng-purple);
    border-radius: 999px;
    padding: 5px 16px;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: .6px;
    text-transform: uppercase;
    margin-bottom: 18px;
}
.rng-badge svg { width: 13px; height: 13px; flex-shrink: 0; }

.rng-hero h1 {
    font-size: clamp(26px, 5vw, 40px);
    font-weight: 800;
    line-height: 1.13;
    letter-spacing: -.6px;
    color: var(--rng-text);
    margin-bottom: 14px;
}
.rng-hero h1 em {
    font-style: normal;
    background: var(--rng-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.rng-hero p {
    font-size: 15.5px;
    color: var(--rng-text-3);
    max-width: 520px;
    margin: 0 auto;
    line-height: 1.68;
}

/* ═══════════════════════════════════════════════════════════════════
   LAYOUT - two columns on desktop
══════════════════════════════════════════════════════════════════ */
.rng-layout {
    display: grid;
    grid-template-columns: 360px 1fr;
    gap: 20px;
    padding: 0 16px;
    align-items: start;
}

@media (max-width: 880px) {
    .rng-layout { grid-template-columns: 1fr; }
}

/* ═══════════════════════════════════════════════════════════════════
   CARD
══════════════════════════════════════════════════════════════════ */
.rng-card {
    background: var(--rng-bg);
    border: 1.5px solid var(--rng-border);
    border-radius: var(--rng-radius);
    padding: 20px;
    margin-bottom: 16px;
    box-shadow: var(--rng-shadow-sm);
    transition: box-shadow var(--rng-ease);
}
.rng-card:hover { box-shadow: var(--rng-shadow-md); }
.rng-card:last-child { margin-bottom: 0; }

.rng-card-head {
    display: flex;
    align-items: center;
    gap: 9px;
    margin-bottom: 16px;
    padding-bottom: 13px;
    border-bottom: 1.5px solid var(--rng-border);
}
.rng-card-icon {
    width: 17px; height: 17px;
    color: var(--rng-purple);
    flex-shrink: 0;
}
.rng-card-title {
    font-size: 12.5px;
    font-weight: 700;
    color: var(--rng-text-2);
    letter-spacing: .4px;
    text-transform: uppercase;
}

/* ═══════════════════════════════════════════════════════════════════
   PRESETS
══════════════════════════════════════════════════════════════════ */
.rng-presets {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 8px;
}

.rng-preset {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 5px;
    padding: 11px 6px;
    border: 1.5px solid var(--rng-border);
    border-radius: var(--rng-radius-sm);
    background: var(--rng-bg-card);
    cursor: pointer;
    transition: all var(--rng-ease);
    font-family: inherit;
}
.rng-preset:hover {
    border-color: var(--rng-purple-mid);
    background: var(--rng-purple-xlight);
}
.rng-preset-emoji { font-size: 20px; line-height: 1; }
.rng-preset-name  { font-size: 11px; font-weight: 700; color: var(--rng-text-2); }
.rng-preset-range { font-size: 10px; color: var(--rng-text-3); font-family: var(--rng-font-mono); }

/* ═══════════════════════════════════════════════════════════════════
   FORM FIELDS
══════════════════════════════════════════════════════════════════ */
.rng-field { margin-bottom: 14px; }
.rng-field:last-child { margin-bottom: 0; }

.rng-label {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 12.5px;
    font-weight: 700;
    color: var(--rng-text-2);
    margin-bottom: 6px;
    letter-spacing: .15px;
}
.rng-label-badge {
    font-size: 10.5px;
    font-weight: 600;
    color: var(--rng-purple);
    background: var(--rng-purple-light);
    padding: 2px 8px;
    border-radius: 99px;
    letter-spacing: .2px;
    text-transform: uppercase;
}

.rng-input {
    width: 100%;
    padding: 10px 13px;
    border: 1.5px solid var(--rng-border);
    border-radius: var(--rng-radius-sm);
    background: var(--rng-bg-input);
    font-size: 14px;
    font-weight: 600;
    color: var(--rng-text);
    font-family: var(--rng-font-mono);
    outline: none;
    -webkit-appearance: none;
    appearance: none;
    transition: border-color var(--rng-ease), box-shadow var(--rng-ease);
}
.rng-input:focus {
    border-color: var(--rng-border-focus);
    box-shadow: 0 0 0 3px rgba(139,92,246,.15);
}
.rng-input.is-error {
    border-color: var(--rng-red);
    box-shadow: 0 0 0 3px rgba(220,38,38,.10);
}

/* side-by-side min/max */
.rng-range-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
}

/* ── Error message ── */
.rng-err {
    font-size: 11.5px;
    color: var(--rng-red);
    font-weight: 600;
    margin-top: 5px;
    min-height: 16px;
    display: flex;
    align-items: center;
    gap: 4px;
}

/* ═══════════════════════════════════════════════════════════════════
   STEPPER (quantity)
══════════════════════════════════════════════════════════════════ */
.rng-stepper {
    display: flex;
    align-items: center;
    gap: 0;
    border: 1.5px solid var(--rng-border);
    border-radius: var(--rng-radius-sm);
    overflow: hidden;
    background: var(--rng-bg-input);
    transition: border-color var(--rng-ease), box-shadow var(--rng-ease);
}
.rng-stepper:focus-within {
    border-color: var(--rng-border-focus);
    box-shadow: 0 0 0 3px rgba(139,92,246,.15);
}
.rng-step-btn {
    width: 38px;
    min-width: 38px;
    height: 42px;
    border: none;
    background: var(--rng-bg-card);
    color: var(--rng-purple);
    font-size: 18px;
    font-weight: 700;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background var(--rng-ease);
    flex-shrink: 0;
}
.rng-step-btn:hover { background: var(--rng-purple-light); }
.rng-step-btn:active { background: var(--rng-purple-mid); color: #fff; }
.rng-stepper .rng-input {
    border: none;
    border-radius: 0;
    text-align: center;
    box-shadow: none;
    flex: 1;
    padding: 10px 4px;
}
.rng-stepper .rng-input:focus { box-shadow: none; border-color: transparent; }

/* ═══════════════════════════════════════════════════════════════════
   TOGGLES
══════════════════════════════════════════════════════════════════ */
.rng-toggle-list { display: flex; flex-direction: column; gap: 2px; }

.rng-toggle-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 11px 0;
    border-bottom: 1px solid var(--rng-border);
    gap: 10px;
}
.rng-toggle-row:last-child { border-bottom: none; padding-bottom: 0; }

.rng-toggle-info { flex: 1; min-width: 0; }
.rng-toggle-name {
    font-size: 13px; font-weight: 700; color: var(--rng-text-2);
    margin-bottom: 2px;
}
.rng-toggle-desc {
    font-size: 11.5px; color: var(--rng-text-3); font-weight: 400; line-height: 1.4;
}

/* iOS-style pill toggle */
.rng-toggle {
    position: relative; display: inline-block;
    width: 40px; height: 22px; flex-shrink: 0;
}
.rng-toggle input { opacity: 0; width: 0; height: 0; position: absolute; }
.rng-toggle-track {
    position: absolute; inset: 0;
    background: #cbd5e1;
    border-radius: 99px; cursor: pointer;
    transition: background .2s ease;
}
.rng-toggle-track::before {
    content: '';
    position: absolute;
    width: 16px; height: 16px;
    left: 3px; top: 3px;
    background: #fff;
    border-radius: 50%;
    box-shadow: 0 1px 4px rgba(0,0,0,.18);
    transition: transform .2s ease;
}
.rng-toggle input:checked + .rng-toggle-track { background: var(--rng-purple); }
.rng-toggle input:checked + .rng-toggle-track::before { transform: translateX(18px); }

/* ── Decimal precision (shown only when decimals on) ── */
.rng-precision-row {
    display: none;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    padding: 10px 12px;
    background: var(--rng-purple-xlight);
    border: 1.5px solid var(--rng-purple-light);
    border-radius: var(--rng-radius-sm);
    margin-top: 4px;
}
.rng-precision-row.is-visible { display: flex; }
.rng-precision-label { font-size: 12.5px; font-weight: 700; color: var(--rng-purple-dark); }
.rng-precision-select {
    border: 1.5px solid var(--rng-purple-light);
    border-radius: 6px;
    background: #fff;
    color: var(--rng-purple-dark);
    font-size: 13px;
    font-weight: 700;
    padding: 4px 10px;
    outline: none;
    font-family: var(--rng-font-mono);
    cursor: pointer;
}

/* ── Sort select ── */
.rng-sort-select {
    width: 100%;
    padding: 9px 12px;
    border: 1.5px solid var(--rng-border);
    border-radius: var(--rng-radius-sm);
    background: var(--rng-bg-input);
    font-size: 13.5px;
    font-weight: 600;
    color: var(--rng-text-2);
    font-family: inherit;
    outline: none;
    cursor: pointer;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%238b5cf6' stroke-width='2.5'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    -webkit-appearance: none;
    appearance: none;
    padding-right: 34px;
    transition: border-color var(--rng-ease), box-shadow var(--rng-ease);
}
.rng-sort-select:focus {
    border-color: var(--rng-border-focus);
    box-shadow: 0 0 0 3px rgba(139,92,246,.15);
}

/* ═══════════════════════════════════════════════════════════════════
   GENERATE BUTTON (left panel)
══════════════════════════════════════════════════════════════════ */
.rng-btn-generate {
    width: 100%;
    padding: 14px;
    background: var(--rng-gradient);
    color: #fff;
    border: none;
    border-radius: var(--rng-radius-sm);
    font-size: 15px;
    font-weight: 800;
    font-family: inherit;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 9px;
    letter-spacing: .2px;
    box-shadow: var(--rng-shadow-purple);
    transition: opacity var(--rng-ease), transform var(--rng-ease), box-shadow var(--rng-ease);
    position: relative;
    overflow: hidden;
}
.rng-btn-generate::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(to right, rgba(255,255,255,0) 0%, rgba(255,255,255,.12) 50%, rgba(255,255,255,0) 100%);
    transform: translateX(-100%);
    transition: transform .5s ease;
}
.rng-btn-generate:hover::before { transform: translateX(100%); }
.rng-btn-generate:hover {
    opacity: .93;
    transform: translateY(-1px);
    box-shadow: 0 6px 24px rgba(124,58,237,.38);
}
.rng-btn-generate:active {
    transform: translateY(0);
    box-shadow: var(--rng-shadow-purple);
}
.rng-btn-generate svg { width: 18px; height: 18px; flex-shrink: 0; }

/* pulse animation on fresh result */
@keyframes rngPulse {
    0%   { box-shadow: 0 0 0 0   rgba(124,58,237,.55); }
    70%  { box-shadow: 0 0 0 10px rgba(124,58,237,.0);  }
    100% { box-shadow: 0 0 0 0   rgba(124,58,237,.0);  }
}
.rng-btn-generate.did-generate { animation: rngPulse .55s ease; }

/* ═══════════════════════════════════════════════════════════════════
   RIGHT PANEL
══════════════════════════════════════════════════════════════════ */
.rng-right { display: flex; flex-direction: column; gap: 16px; }

/* ── Big number spotlight (single result) ── */
.rng-spotlight {
    background: var(--rng-gradient);
    border-radius: var(--rng-radius-lg);
    padding: 32px 24px;
    text-align: center;
    box-shadow: var(--rng-shadow-purple);
    position: relative;
    overflow: hidden;
    display: none;
}
.rng-spotlight.is-visible { display: block; }
.rng-spotlight::before {
    content: '';
    position: absolute;
    width: 240px; height: 240px;
    border-radius: 50%;
    background: rgba(255,255,255,.07);
    top: -80px; right: -60px;
}
.rng-spotlight::after {
    content: '';
    position: absolute;
    width: 160px; height: 160px;
    border-radius: 50%;
    background: rgba(255,255,255,.05);
    bottom: -50px; left: -40px;
}
.rng-spotlight-label {
    font-size: 12px; font-weight: 700; letter-spacing: .8px;
    text-transform: uppercase; color: rgba(255,255,255,.65);
    margin-bottom: 10px;
}
.rng-spotlight-number {
    font-size: clamp(52px, 10vw, 88px);
    font-weight: 800;
    color: #fff;
    line-height: 1;
    font-family: var(--rng-font-mono);
    letter-spacing: -2px;
    position: relative; z-index: 1;
    animation: rngCountIn .35s cubic-bezier(.34,1.56,.64,1) both;
}
@keyframes rngCountIn {
    from { transform: scale(.7); opacity: 0; }
    to   { transform: scale(1);  opacity: 1; }
}
.rng-spotlight-sub {
    font-size: 12.5px; color: rgba(255,255,255,.55);
    margin-top: 10px; font-weight: 500;
}

/* ── Output card ── */
.rng-output-card {
    background: var(--rng-bg);
    border: 1.5px solid var(--rng-border);
    border-radius: var(--rng-radius);
    overflow: hidden;
    box-shadow: var(--rng-shadow-sm);
}

.rng-output-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 13px 18px;
    border-bottom: 1.5px solid var(--rng-border);
    background: var(--rng-bg-card);
    flex-wrap: wrap;
    gap: 8px;
}
.rng-output-title {
    font-size: 13px; font-weight: 700; color: var(--rng-text-2);
    letter-spacing: .2px; text-transform: uppercase;
    display: flex; align-items: center; gap: 7px;
}
.rng-output-title svg { width: 15px; height: 15px; color: var(--rng-purple); }

.rng-output-actions { display: flex; align-items: center; gap: 7px; }

/* small icon buttons */
.rng-icon-btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 5px;
    padding: 6px 11px;
    border: 1.5px solid var(--rng-border);
    border-radius: 7px;
    background: var(--rng-bg);
    color: var(--rng-text-2);
    font-size: 12px; font-weight: 700;
    cursor: pointer; font-family: inherit;
    transition: all var(--rng-ease);
    white-space: nowrap;
}
.rng-icon-btn svg { width: 13px; height: 13px; flex-shrink: 0; }
.rng-icon-btn:hover {
    border-color: var(--rng-purple-mid);
    background: var(--rng-purple-xlight);
    color: var(--rng-purple);
}
.rng-icon-btn.is-danger:hover {
    border-color: var(--rng-red);
    background: var(--rng-red-light);
    color: var(--rng-red);
}

/* results grid */
.rng-output-body {
    padding: 18px;
    min-height: 140px;
}

.rng-empty {
    display: flex; flex-direction: column; align-items: center; justify-content: center;
    gap: 10px; padding: 32px 20px; color: var(--rng-text-4);
    text-align: center;
}
.rng-empty svg { width: 44px; height: 44px; opacity: .25; }
.rng-empty p { font-size: 13.5px; font-weight: 500; }

.rng-numbers-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.rng-num-chip {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 58px;
    padding: 7px 14px;
    background: var(--rng-gradient-soft);
    border: 1.5px solid var(--rng-purple-light);
    border-radius: 8px;
    font-size: 15px;
    font-weight: 700;
    color: var(--rng-purple-dark);
    font-family: var(--rng-font-mono);
    letter-spacing: .3px;
    animation: rngChipIn .25s ease both;
}
.rng-num-chip:nth-child(1)  { animation-delay: .00s; }
.rng-num-chip:nth-child(2)  { animation-delay: .02s; }
.rng-num-chip:nth-child(3)  { animation-delay: .04s; }
.rng-num-chip:nth-child(4)  { animation-delay: .06s; }
.rng-num-chip:nth-child(5)  { animation-delay: .08s; }
.rng-num-chip:nth-child(n+6){ animation-delay: .10s; }

@keyframes rngChipIn {
    from { transform: scale(.7) translateY(4px); opacity: 0; }
    to   { transform: scale(1)  translateY(0);   opacity: 1; }
}

/* list mode (>20 results) */
.rng-numbers-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(80px, 1fr));
    gap: 6px;
}
.rng-numbers-list .rng-num-chip {
    min-width: unset; width: 100%; padding: 6px 8px;
    font-size: 13px;
}

/* ── Stats bar ── */
.rng-stats {
    display: none;
    border-top: 1.5px solid var(--rng-border);
    padding: 14px 18px;
    background: var(--rng-bg-card);
    flex-wrap: wrap;
    gap: 12px;
}
.rng-stats.is-visible { display: flex; }

.rng-stat {
    display: flex;
    flex-direction: column;
    gap: 2px;
    flex: 1;
    min-width: 70px;
}
.rng-stat-label {
    font-size: 10.5px; font-weight: 700; color: var(--rng-text-3);
    letter-spacing: .5px; text-transform: uppercase;
}
.rng-stat-value {
    font-size: 16px; font-weight: 800;
    color: var(--rng-purple);
    font-family: var(--rng-font-mono);
    letter-spacing: -.3px;
}

/* ── History card ── */
.rng-history-list { display: flex; flex-direction: column; gap: 6px; }
.rng-history-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 9px 13px;
    border: 1.5px solid var(--rng-border);
    border-radius: var(--rng-radius-sm);
    background: var(--rng-bg-card);
    cursor: pointer;
    transition: all var(--rng-ease);
}
.rng-history-item:hover {
    border-color: var(--rng-purple-mid);
    background: var(--rng-purple-xlight);
}
.rng-history-meta {
    flex: 1; min-width: 0;
}
.rng-history-range {
    font-size: 12.5px; font-weight: 700; color: var(--rng-text-2);
    font-family: var(--rng-font-mono);
}
.rng-history-preview {
    font-size: 11px; color: var(--rng-text-3); white-space: nowrap;
    overflow: hidden; text-overflow: ellipsis; margin-top: 2px;
}
.rng-history-time {
    font-size: 10.5px; color: var(--rng-text-4); font-weight: 500;
    flex-shrink: 0;
}
.rng-history-restore {
    font-size: 11px; font-weight: 700; color: var(--rng-purple);
    flex-shrink: 0;
    opacity: 0;
    transition: opacity var(--rng-ease);
}
.rng-history-item:hover .rng-history-restore { opacity: 1; }

.rng-no-history {
    font-size: 13px; color: var(--rng-text-4);
    text-align: center; padding: 14px 0; font-weight: 500;
}

/* ═══════════════════════════════════════════════════════════════════
   MOBILE FIXED BAR
══════════════════════════════════════════════════════════════════ */
.rng-mobile-bar { display: none; }

@media (max-width: 640px) {
    .rng-mobile-bar {
        display: flex;
        position: fixed;
        bottom: 0; left: 0; right: 0;
        background: var(--rng-bg);
        border-top: 1.5px solid var(--rng-border);
        padding: 10px 14px 14px;
        gap: 10px;
        z-index: 900;
        box-shadow: 0 -4px 20px rgba(0,0,0,.09);
    }
    .rng-mobile-bar .rng-btn-generate {
        flex: 1; padding: 13px 10px; font-size: 14px;
    }
    .rng-mobile-copy {
        padding: 13px 16px;
        border: 1.5px solid var(--rng-border);
        border-radius: var(--rng-radius-sm);
        background: var(--rng-bg);
        color: var(--rng-text-2);
        font-size: 13px; font-weight: 700;
        cursor: pointer; font-family: inherit;
        display: flex; align-items: center; gap: 6px;
        transition: all var(--rng-ease); white-space: nowrap;
    }
    .rng-mobile-copy svg { width: 15px; height: 15px; }
    .rng-mobile-copy:hover {
        border-color: var(--rng-purple-mid);
        background: var(--rng-purple-xlight);
        color: var(--rng-purple);
    }
}

/* ═══════════════════════════════════════════════════════════════════
   TOAST
══════════════════════════════════════════════════════════════════ */
.rng-toast {
    position: fixed;
    bottom: 28px; left: 50%;
    transform: translateX(-50%) translateY(70px);
    background: #1e293b;
    color: #fff;
    padding: 10px 20px;
    border-radius: 10px;
    font-size: 13.5px; font-weight: 600;
    box-shadow: 0 8px 28px rgba(0,0,0,.22);
    z-index: 9999;
    pointer-events: none;
    transition: transform .28s cubic-bezier(.34,1.56,.64,1), opacity .2s ease;
    opacity: 0;
    display: flex; align-items: center; gap: 8px;
    white-space: nowrap;
}
.rng-toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }
.rng-toast svg  { width: 16px; height: 16px; flex-shrink: 0; }
.rng-toast.success { background: #14532d; }
.rng-toast.error   { background: #7f1d1d; }
.rng-toast.info    { background: #4c1d95; }

/* ═══════════════════════════════════════════════════════════════════
   SEO / CONTENT SECTION
══════════════════════════════════════════════════════════════════ */
.rng-seo {
    padding: 44px 16px 8px;
    max-width: 860px;
    margin: 0 auto;
}

.rng-seo-why {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 14px;
    margin-bottom: 36px;
}

.rng-seo-card {
    background: var(--rng-bg);
    border: 1.5px solid var(--rng-border);
    border-radius: var(--rng-radius);
    padding: 18px;
    box-shadow: var(--rng-shadow-sm);
}
.rng-seo-card-icon {
    width: 38px; height: 38px;
    border-radius: 10px;
    background: var(--rng-purple-light);
    display: flex; align-items: center; justify-content: center;
    margin-bottom: 10px;
}
.rng-seo-card-icon svg { width: 18px; height: 18px; color: var(--rng-purple); }
.rng-seo-card h3 { font-size: 14px; font-weight: 700; color: var(--rng-text); margin-bottom: 5px; }
.rng-seo-card p  { font-size: 13px; color: var(--rng-text-3); line-height: 1.6; }

.rng-seo h2 {
    font-size: 21px; font-weight: 800; color: var(--rng-text);
    margin-bottom: 12px; letter-spacing: -.2px;
}
.rng-seo > p {
    font-size: 14px; color: var(--rng-text-3); line-height: 1.75;
    margin-bottom: 28px;
}

/* Use cases chips */
.rng-use-cases {
    display: flex; flex-wrap: wrap; gap: 9px;
    margin-bottom: 32px;
}
.rng-use-case {
    display: inline-flex; align-items: center; gap: 6px;
    padding: 7px 14px;
    border: 1.5px solid var(--rng-purple-light);
    border-radius: 999px;
    background: var(--rng-purple-xlight);
    font-size: 13px; font-weight: 600; color: var(--rng-purple-dark);
}
.rng-use-case svg { width: 13px; height: 13px; }

/* FAQ */
.rng-faq { margin-bottom: 44px; }
.rng-faq-item { border-bottom: 1.5px solid var(--rng-border); }
.rng-faq-item:last-child { border-bottom: none; }

.rng-faq-q {
    width: 100%; text-align: left; background: none; border: none;
    padding: 16px 0; font-size: 14.5px; font-weight: 700; color: var(--rng-text);
    cursor: pointer; display: flex; align-items: center; justify-content: space-between;
    gap: 12px; font-family: inherit; transition: color var(--rng-ease);
}
.rng-faq-q:hover { color: var(--rng-purple); }
.rng-faq-chevron {
    width: 18px; height: 18px; flex-shrink: 0;
    color: var(--rng-text-3); transition: transform .2s ease;
}
.rng-faq-item.is-open .rng-faq-chevron { transform: rotate(180deg); color: var(--rng-purple); }

.rng-faq-a { max-height: 0; overflow: hidden; transition: max-height .3s ease; }
.rng-faq-item.is-open .rng-faq-a { max-height: 260px; }
.rng-faq-a-inner {
    padding-bottom: 16px;
    font-size: 14px; color: var(--rng-text-3); line-height: 1.72;
}

/* ═══════════════════════════════════════════════════════════════════
   RESPONSIVE TWEAKS
══════════════════════════════════════════════════════════════════ */
@media (max-width: 640px) {
    .rng-hero { padding: 28px 14px 22px; }
    .rng-layout { padding: 0 12px; gap: 14px; }
    .rng-card  { padding: 16px; margin-bottom: 12px; }
    .rng-presets { grid-template-columns: repeat(4, 1fr); }
    .rng-numbers-grid { gap: 6px; }
    .rng-num-chip { font-size: 14px; min-width: 50px; padding: 6px 10px; }
    .rng-seo { padding: 30px 12px 8px; }
    .rng-seo-why { grid-template-columns: 1fr; }
    .rng-output-actions { gap: 5px; }
    .rng-icon-btn { padding: 5px 9px; font-size: 11.5px; }
}

@media (max-width: 380px) {
    .rng-presets { grid-template-columns: repeat(2, 1fr); }
}