/* Image Compressor PRO — stil inspirat din mockup (dark navy + accent verde/albastru) */

:root, [data-theme="dark"] {
  --bg: #050b18;
  --bg-2: #081226;
  --panel: #0a1730;
  --panel-2: #0d1d3a;
  --line: #1a2b4b;
  --line-2: #243a63;
  --text: #e8eef8;
  --muted: #9aabc6;
  --faint: #6f81a1;
  --blue: #1677ff;
  --blue-2: #3b8cff;
  --green: #22c55e;
  --green-2: #16a34a;
  --violet: #7c4dff;
  --amber: #f59e0b;
  --red: #ef4444;
  --grad: linear-gradient(90deg, #0f7bff 0%, #18b67a 70%, #22c55e 100%);
  --shadow: 0 20px 60px -20px rgba(0, 0, 0, .65);
  --radius: 18px;
  --radius-sm: 12px;
  color-scheme: dark;
}

[data-theme="light"] {
  --bg: #eef3fa;
  --bg-2: #f5f8fd;
  --panel: #ffffff;
  --panel-2: #f3f6fb;
  --line: #dde5f0;
  --line-2: #c9d5e6;
  --text: #0c1a33;
  --muted: #4c5f7f;
  --faint: #7a8aa6;
  --shadow: 0 20px 50px -25px rgba(20, 40, 80, .25);
  color-scheme: light;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font: 15px/1.55 "Inter", "Segoe UI", system-ui, -apple-system, Roboto, sans-serif;
  color: var(--text);
  background:
    radial-gradient(1200px 600px at 10% -10%, rgba(22, 119, 255, .12), transparent 60%),
    radial-gradient(900px 500px at 100% 0%, rgba(34, 197, 94, .07), transparent 60%),
    var(--bg);
  min-height: 100vh;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; }
button, input, select { font: inherit; color: inherit; }
[hidden] { display: none !important; }
:focus-visible { outline: 2px solid var(--blue-2); outline-offset: 2px; border-radius: 6px; }

.skip-link { position: absolute; left: -999px; top: 8px; background: var(--blue); color: #fff; padding: 8px 14px; border-radius: 8px; z-index: 100; }
.skip-link:focus { left: 8px; }

.icon { flex: none; }

/* ---------- Shell ---------- */
.shell {
  max-width: 1480px;
  margin: 24px auto;
  padding: 26px 32px 18px;
  border: 1px solid var(--line);
  border-radius: 28px;
  background: linear-gradient(180deg, rgba(13, 29, 58, .55), rgba(5, 11, 24, .2));
  box-shadow: var(--shadow);
}
[data-theme="light"] .shell { background: rgba(255, 255, 255, .55); }

.topbar { display: flex; align-items: center; gap: 24px; margin-bottom: 26px; }
.brand { display: flex; align-items: center; gap: 16px; text-decoration: none; min-width: 0; }
.brand-logo { width: 52px; height: 52px; filter: drop-shadow(0 6px 14px rgba(22, 119, 255, .35)); }
.brand-text { display: flex; flex-direction: column; min-width: 0; }
.brand-name { font-size: 26px; font-weight: 700; letter-spacing: -.02em; line-height: 1.15; white-space: nowrap; }
.brand-name b { color: var(--green); font-weight: 800; }
.brand-tag { color: var(--muted); font-size: 14px; }

.mainnav { display: flex; gap: 4px; margin-left: auto; padding: 4px; border: 1px solid var(--line); border-radius: 999px; background: var(--panel); }
.mainnav a { text-decoration: none; padding: 8px 16px; border-radius: 999px; color: var(--muted); font-weight: 500; font-size: 14px; white-space: nowrap; }
.mainnav a:hover { color: var(--text); }
.mainnav a.active { background: var(--panel-2); color: var(--text); box-shadow: inset 0 0 0 1px var(--line-2); }

.topbar-actions { display: flex; gap: 6px; align-items: center; }
.icon-btn { display: grid; place-items: center; width: 44px; height: 44px; border-radius: 12px; border: 0; background: transparent; color: var(--muted); cursor: pointer; }
.icon-btn:hover { color: var(--text); background: var(--panel-2); }
.menu-btn { display: none; }
[data-theme="dark"] .when-light, [data-theme="light"] .when-dark { display: none; }

.lang { position: relative; }
.lang-menu { position: absolute; right: 0; top: 50px; background: var(--panel); border: 1px solid var(--line-2); border-radius: 12px; padding: 6px; min-width: 150px; box-shadow: var(--shadow); z-index: 30; }
.lang-menu a { display: block; padding: 8px 12px; border-radius: 8px; text-decoration: none; color: var(--muted); }
.lang-menu a:hover, .lang-menu a.active { background: var(--panel-2); color: var(--text); }

.footer { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; margin-top: 28px; padding-top: 16px; border-top: 1px solid var(--line); color: var(--faint); font-size: 13px; }
.footer-links { display: flex; gap: 16px; }
.footer-links a { text-decoration: none; }
.footer-links a:hover { color: var(--text); }

/* ---------- Cards & layout ---------- */
.card { background: linear-gradient(180deg, var(--panel), var(--bg-2)); border: 1px solid var(--line); border-radius: var(--radius); }
.card-title { font-size: 19px; font-weight: 600; margin: 0 0 16px; display: flex; align-items: center; gap: 10px; }
.tool-grid { display: grid; grid-template-columns: minmax(0, 1fr) 500px; gap: 24px; align-items: start; }
.stage { padding: 16px; display: flex; flex-direction: column; gap: 16px; }
.side { padding: 32px; display: flex; flex-direction: column; gap: 20px; position: sticky; top: 16px; }

/* ---------- Dropzone ---------- */
.dropzone {
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 10px;
  min-height: 236px; padding: 28px; text-align: center; cursor: pointer;
  border: 1.5px dashed var(--line-2); border-radius: 14px;
  transition: border-color .2s, background .2s;
}
.dropzone:hover, .dropzone.is-over { border-color: var(--green); background: rgba(34, 197, 94, .05); }
.dropzone.is-compact { min-height: 0; padding: 16px; flex-direction: row; }
.dropzone.is-compact .dz-icon, .dropzone.is-compact .dz-title, .dropzone.is-compact .dz-hint { display: none; }
.dz-icon { color: var(--green); }
.dz-icon .icon { stroke-width: 1.4; }
.dz-title { font-size: 19px; font-weight: 500; }
.dz-hint { color: var(--muted); font-size: 15px; }
.dz-file { display: inline-flex; align-items: center; gap: 8px; font-weight: 500; }
.dz-replace { color: var(--green); font-size: 14px; margin-left: 6px; }
.link { color: var(--green); }
.dropzone-bulk { min-height: 190px; }
.dz-extra { display: flex; justify-content: center; margin-top: -6px; }

/* ---------- Compare slider ---------- */
.compare {
  position: relative; aspect-ratio: 16 / 7; min-height: 280px; overflow: hidden;
  border-radius: 14px; background: var(--bg-2);
  background-image: linear-gradient(45deg, rgba(128,128,128,.12) 25%, transparent 25%, transparent 75%, rgba(128,128,128,.12) 75%),
                    linear-gradient(45deg, rgba(128,128,128,.12) 25%, transparent 25%, transparent 75%, rgba(128,128,128,.12) 75%);
  background-size: 20px 20px; background-position: 0 0, 10px 10px;
  user-select: none; touch-action: pan-y;
  --pos: 50%;
}
.compare.is-empty { background-image: none; border: 1px solid var(--line); }
.compare-placeholder { position: absolute; inset: 0; display: grid; place-content: center; justify-items: center; gap: 10px; color: var(--faint); }
.compare:not(.is-empty) .compare-placeholder { display: none; }
.compare-img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: contain; pointer-events: none; }
.compare-after-wrap { position: absolute; inset: 0; clip-path: inset(0 0 0 var(--pos)); }
.compare-badge { position: absolute; top: 18px; padding: 6px 14px; border-radius: 9px; font-weight: 600; font-size: 15px; z-index: 3; backdrop-filter: blur(6px); }
.compare-badge.before { left: 18px; background: rgba(9, 22, 45, .85); color: #fff; }
.compare-badge.after { right: 18px; background: rgba(21, 128, 61, .9); color: #fff; }
.compare-handle { position: absolute; top: 0; bottom: 0; left: var(--pos); width: 44px; margin-left: -22px; cursor: ew-resize; z-index: 4; display: flex; justify-content: center; }
.compare-handle::before { content: ""; width: 2px; height: 100%; background: #fff; box-shadow: 0 0 8px rgba(0,0,0,.4); }
.compare-knob { position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%); width: 46px; height: 46px; border-radius: 50%; display: grid; place-items: center; background: var(--green-2); color: #fff; border: 3px solid #fff; box-shadow: 0 6px 18px rgba(0,0,0,.4); }
.compare-busy { position: absolute; inset: 0; display: grid; place-content: center; justify-items: center; gap: 14px; background: rgba(5, 11, 24, .6); backdrop-filter: blur(3px); z-index: 6; color: #fff; font-weight: 500; }
.output-tabs { position: absolute; left: 50%; bottom: 14px; transform: translateX(-50%); display: flex; gap: 4px; padding: 4px; border-radius: 12px; background: rgba(5, 11, 24, .78); backdrop-filter: blur(8px); z-index: 5; }
.output-tabs button { border: 0; background: transparent; color: #c7d3e6; padding: 6px 12px; border-radius: 8px; cursor: pointer; font-size: 13px; font-weight: 500; white-space: nowrap; }
.output-tabs button.active { background: var(--green-2); color: #fff; }
.output-tabs button small { opacity: .8; margin-left: 4px; }

.spinner { width: 38px; height: 38px; border-radius: 50%; border: 3px solid rgba(255,255,255,.2); border-top-color: var(--green); animation: spin .8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

/* ---------- Stats ---------- */
.stats { display: grid; grid-template-columns: repeat(3, 1fr); border: 1px solid var(--line); border-radius: 14px; padding: 18px 0; }
.stat { display: flex; flex-direction: column; align-items: center; gap: 4px; text-align: center; padding: 0 12px; }
.stat + .stat { border-left: 1px solid var(--line); }
.stat-label { color: var(--muted); font-size: 15px; }
.stat-value { font-size: 22px; font-weight: 700; letter-spacing: -.01em; }
.stat-value.accent, .accent { color: var(--green); }
.stat-value.accent { font-size: 28px; }
.stat-sub { color: var(--faint); font-size: 12.5px; min-height: 1em; }

/* ---------- Form controls ---------- */
.settings-form { display: flex; flex-direction: column; gap: 18px; }
.field { display: flex; flex-direction: column; gap: 8px; border: 0; margin: 0; padding: 0; min-width: 0; }
.field-label { color: var(--muted); font-size: 15px; padding: 0; }
.field-row { display: flex; justify-content: space-between; align-items: baseline; }
.field-value { font-weight: 600; }
.field-hint { color: var(--faint); font-size: 13px; margin: 0; }
.field-hint.center { text-align: center; margin-top: -10px; }
.field-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }

.range { -webkit-appearance: none; appearance: none; width: 100%; height: 6px; border-radius: 99px; outline-offset: 6px;
  background: linear-gradient(90deg, var(--blue) 0%, var(--blue-2) var(--fill, 75%), #d9e2ef var(--fill, 75%)); cursor: pointer; }
.range::-webkit-slider-thumb { -webkit-appearance: none; width: 20px; height: 20px; border-radius: 50%; background: var(--blue); border: 3px solid #fff; box-shadow: 0 2px 8px rgba(22,119,255,.5); }
.range::-moz-range-thumb { width: 16px; height: 16px; border-radius: 50%; background: var(--blue); border: 3px solid #fff; }
.range:disabled { opacity: .4; cursor: not-allowed; }
.range-legend { display: flex; justify-content: space-between; color: var(--faint); font-size: 12px; }

.segmented { display: grid; grid-template-columns: repeat(3, 1fr); gap: 4px; padding: 4px; border-radius: 12px; background: var(--bg-2); border: 1px solid var(--line); }
.segment { position: relative; }
.segment input { position: absolute; opacity: 0; inset: 0; }
.segment span { display: block; text-align: center; padding: 8px; border-radius: 9px; color: var(--muted); cursor: pointer; font-weight: 500; }
.segment input:checked + span { background: var(--panel-2); color: var(--text); box-shadow: inset 0 0 0 1px var(--line-2); }
.segment input:focus-visible + span { outline: 2px solid var(--blue-2); }

.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip { position: relative; }
.chip input { position: absolute; opacity: 0; inset: 0; }
.chip span { display: inline-flex; align-items: center; gap: 6px; padding: 7px 14px; border-radius: 999px; border: 1px solid var(--line-2); color: var(--muted); cursor: pointer; font-weight: 500; }
.chip span .icon { opacity: 0; width: 0; transition: width .15s; }
.chip input:checked + span { border-color: var(--green); color: var(--text); background: rgba(34,197,94,.1); }
.chip input:checked + span .icon { opacity: 1; width: 14px; color: var(--green); }
.chip input:focus-visible + span { outline: 2px solid var(--blue-2); }
.chip.is-disabled span { opacity: .4; cursor: not-allowed; }

.input { width: 100%; padding: 9px 12px; border-radius: 10px; border: 1px solid var(--line-2); background: var(--bg-2); }
.input:focus { border-color: var(--blue); outline: none; }

.advanced { border: 1px solid var(--line); border-radius: 12px; }
.advanced summary { cursor: pointer; padding: 11px 14px; color: var(--muted); display: flex; align-items: center; gap: 8px; list-style: none; }
.advanced summary::-webkit-details-marker { display: none; }
.advanced[open] summary { color: var(--text); border-bottom: 1px solid var(--line); }
.advanced-body { padding: 14px; display: flex; flex-direction: column; gap: 14px; }

.switch { display: flex; gap: 12px; align-items: flex-start; cursor: pointer; }
.switch input { position: absolute; opacity: 0; }
.switch-ui { flex: none; width: 38px; height: 22px; border-radius: 99px; background: var(--line-2); position: relative; transition: background .2s; margin-top: 2px; }
.switch-ui::after { content: ""; position: absolute; top: 3px; left: 3px; width: 16px; height: 16px; border-radius: 50%; background: #fff; transition: transform .2s; }
.switch input:checked + .switch-ui { background: var(--green-2); }
.switch input:checked + .switch-ui::after { transform: translateX(16px); }
.switch input:focus-visible + .switch-ui { outline: 2px solid var(--blue-2); outline-offset: 2px; }
.switch b { display: block; font-weight: 500; }
.switch small { display: block; color: var(--faint); font-size: 12.5px; }

/* ---------- Buttons ---------- */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 10px; padding: 11px 20px; border-radius: 10px; border: 1px solid transparent; font-weight: 600; text-decoration: none; cursor: pointer; transition: filter .15s, transform .05s, background .15s; white-space: nowrap; }
.btn:active { transform: translateY(1px); }
.btn:disabled, .btn[aria-disabled="true"] { opacity: .45; cursor: not-allowed; pointer-events: none; }
.btn-lg { padding: 15px 24px; font-size: 17px; }
.btn-sm { padding: 6px 12px; font-size: 13px; font-weight: 500; }
.btn-block { width: 100%; }
.btn-primary { background: var(--grad); color: #fff; box-shadow: 0 10px 30px -10px rgba(22,119,255,.6); }
.btn-primary:hover { filter: brightness(1.08); }
.btn-success { background: linear-gradient(90deg, #15803d, #22c55e); color: #fff; }
.btn-success:hover { filter: brightness(1.08); }
.btn-outline { border-color: var(--line-2); background: transparent; color: var(--text); }
.btn-outline:hover { background: var(--panel-2); }
.btn-ghost { background: transparent; color: var(--muted); border-color: var(--line); }
.btn-ghost:hover { color: var(--text); background: var(--panel-2); }
.btn-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: auto; }

/* ---------- Features ---------- */
.feature-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 8px; }
.feature-item { display: flex; align-items: center; gap: 18px; padding: 12px 14px; border: 1px solid var(--line); border-radius: 12px; background: rgba(255,255,255,.01); }
.feature-item b { display: block; font-weight: 500; }
.feature-item small { color: var(--muted); font-size: 13.5px; }
.feature-icon { display: grid; place-items: center; width: 48px; height: 48px; border-radius: 10px; color: #fff; flex: none; }
.tone-green { background: linear-gradient(135deg, #22c55e, #15803d); }
.tone-blue { background: linear-gradient(135deg, #3b8cff, #0b5ed7); }
.tone-violet { background: linear-gradient(135deg, #8b5cf6, #5b21b6); }
.tone-amber { background: linear-gradient(135deg, #fbbf24, #f59e0b); }

/* ---------- Bulk queue ---------- */
.queue-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
.queue-head .card-title { margin: 0; }
.queue-actions { display: flex; gap: 8px; }
.count { font-size: 13px; padding: 2px 9px; border-radius: 99px; background: var(--panel-2); color: var(--muted); border: 1px solid var(--line); }
.queue { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 8px; max-height: 560px; overflow: auto; }
.queue-empty { display: flex; align-items: center; justify-content: center; gap: 10px; padding: 40px; color: var(--faint); border: 1px dashed var(--line); border-radius: 12px; }
.qi { display: grid; grid-template-columns: 52px minmax(0, 1fr) auto; gap: 14px; align-items: center; padding: 10px 12px; border: 1px solid var(--line); border-radius: 12px; background: rgba(255,255,255,.01); }
.qi-thumb { width: 52px; height: 52px; border-radius: 8px; object-fit: cover; background: var(--panel-2); }
.qi-main { min-width: 0; display: flex; flex-direction: column; gap: 5px; }
.qi-name { font-weight: 500; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.qi-meta { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; font-size: 13px; color: var(--muted); }
.qi-meta .tag { display: inline-flex; gap: 4px; padding: 1px 8px; border-radius: 6px; background: var(--panel-2); border: 1px solid var(--line); text-decoration: none; color: var(--text); }
.qi-meta a.tag:hover { border-color: var(--green); }
.qi-meta .tag b { color: var(--green); font-weight: 600; }
.qi-status { font-size: 13px; color: var(--muted); }
.qi.is-error .qi-status { color: var(--red); }
.qi.is-done .qi-status { color: var(--green); }
.qi-side { display: flex; align-items: center; gap: 10px; }
.qi-saving { font-weight: 700; color: var(--green); font-size: 18px; min-width: 56px; text-align: right; }
.qi .progress { height: 4px; }
.qi-remove { width: 32px; height: 32px; }
.progress { height: 6px; border-radius: 99px; background: var(--line); overflow: hidden; }
.progress-bar { display: block; height: 100%; width: 0; background: var(--grad); transition: width .2s; }
.qi.is-busy .progress-bar.indeterminate { width: 40%; animation: indet 1.1s ease-in-out infinite; }
@keyframes indet { 0% { transform: translateX(-100%); } 100% { transform: translateX(250%); } }
.progress-overall { display: flex; align-items: center; gap: 12px; }
.progress-overall .progress { flex: 1; }
.progress-text { color: var(--muted); font-size: 13px; white-space: nowrap; }

/* ---------- Toasts ---------- */
.toasts { position: fixed; right: 20px; bottom: 20px; display: flex; flex-direction: column; gap: 8px; z-index: 50; max-width: min(380px, calc(100vw - 32px)); }
.toast { padding: 12px 16px; border-radius: 12px; background: var(--panel); border: 1px solid var(--line-2); box-shadow: var(--shadow); animation: toast-in .2s ease-out; }
.toast.error { border-color: var(--red); }
.toast.success { border-color: var(--green); }
@keyframes toast-in { from { opacity: 0; transform: translateY(8px); } }

/* ---------- Home ---------- */
.hero { display: grid; grid-template-columns: 1.05fr 1fr; gap: 48px; align-items: center; padding: 28px 8px 40px; }
.eyebrow { display: inline-flex; align-items: center; gap: 8px; padding: 6px 12px; border-radius: 99px; border: 1px solid var(--line-2); color: var(--muted); font-size: 13px; }
.hero h1 { font-size: clamp(34px, 4.4vw, 56px); line-height: 1.07; letter-spacing: -.03em; margin: 18px 0 16px; }
.grad { background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.lead { color: var(--muted); font-size: 18px; max-width: 58ch; margin: 0 0 26px; }
.hero-cta { display: flex; gap: 14px; flex-wrap: wrap; }
.hero-points { list-style: none; padding: 0; margin: 24px 0 0; display: flex; flex-wrap: wrap; gap: 8px 22px; color: var(--muted); font-size: 14px; }
.hero-points li { display: flex; align-items: center; gap: 6px; }
.hero-points .icon { color: var(--green); }
.hero-visual { padding: 14px; }
.demo { position: relative; aspect-ratio: 16 / 10; border-radius: 12px; overflow: hidden; }
.demo-art { width: 100%; height: 100%; }
.demo-after { position: absolute; inset: 0 0 0 52%; backdrop-filter: saturate(1.15) contrast(1.03); }
.demo-line { position: absolute; top: 0; bottom: 0; left: 52%; width: 2px; background: #fff; }
.demo-stats { display: grid; grid-template-columns: repeat(3, 1fr); text-align: center; padding: 16px 0 4px; }
.demo-stats small { display: block; color: var(--muted); }
.demo-stats b { font-size: 20px; }

.section { margin: 56px 0 0; }
.section-head { text-align: center; max-width: 720px; margin: 0 auto 26px; }
.section-head h2 { font-size: clamp(24px, 2.6vw, 34px); letter-spacing: -.02em; margin: 0 0 8px; }
.section-head p { color: var(--muted); margin: 0; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.tile { padding: 24px; }
.tile h3 { margin: 16px 0 6px; font-size: 18px; }
.tile p { color: var(--muted); margin: 0; }
.mode-head { display: flex; justify-content: space-between; align-items: center; }
.mode-head h3 { margin: 0; }
.mode-tile small { display: block; margin-top: 12px; color: var(--faint); }
.mode-lossy { border-top: 3px solid var(--green); }
.mode-glossy { border-top: 3px solid var(--blue); }
.mode-lossless { border-top: 3px solid var(--violet); }
.pill { padding: 3px 10px; border-radius: 99px; background: rgba(34,197,94,.12); color: var(--green); font-weight: 600; font-size: 13px; }

.steps { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.step { padding: 22px; }
.step h3 { margin: 14px 0 6px; font-size: 17px; }
.step p { margin: 0; color: var(--muted); font-size: 14px; }
.step-n { display: grid; place-items: center; width: 36px; height: 36px; border-radius: 10px; background: var(--grad); color: #fff; font-weight: 700; }

.engine { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; }
.engine-col { padding: 24px; }
.engine-col + .engine-col { border-left: 1px solid var(--line); }
.engine-col h3 { margin: 0 0 14px; font-size: 16px; }
.status-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 10px; }
.status-list li { display: grid; grid-template-columns: 18px auto 1fr; gap: 8px; align-items: center; font-size: 14px; }
.status-list span { color: var(--faint); text-align: right; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.status-list .ok .icon { color: var(--green); }
.status-list .off { opacity: .55; }
.status-list .off .icon { color: var(--red); }
.warn { color: var(--amber); }

.faq { max-width: 860px; margin: 0 auto; display: flex; flex-direction: column; gap: 10px; }
.faq-item { padding: 0; }
.faq-item summary { cursor: pointer; padding: 18px 22px; font-weight: 600; list-style: none; display: flex; justify-content: space-between; gap: 12px; }
.faq-item summary::after { content: "+"; color: var(--green); font-size: 20px; line-height: 1; }
.faq-item[open] summary::after { content: "−"; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item p { margin: 0; padding: 0 22px 20px; color: var(--muted); }

.cta-band { display: flex; justify-content: space-between; align-items: center; gap: 24px; padding: 32px 36px; flex-wrap: wrap;
  background: linear-gradient(120deg, rgba(22,119,255,.18), rgba(34,197,94,.14)), var(--panel); }
.cta-band h2 { margin: 0 0 6px; }
.cta-band p { margin: 0; color: var(--muted); }

.error-page { max-width: 560px; margin: 60px auto; padding: 48px; text-align: center; }
.error-code { font-size: 64px; font-weight: 800; background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.error-page h1 { font-size: 22px; margin: 6px 0 24px; }

/* ---------- Responsive ---------- */
@media (max-width: 1180px) {
  .tool-grid { grid-template-columns: minmax(0, 1fr); }
  .stage, .side { min-width: 0; }
  .dz-title { overflow-wrap: anywhere; }
  .side { position: static; padding: 24px; }
  .hero { grid-template-columns: 1fr; gap: 28px; }
  .steps { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 860px) {
  .shell { margin: 0; border-radius: 0; border-width: 0; padding: 16px; }
  .menu-btn { display: grid; }
  .topbar { flex-wrap: wrap; gap: 12px; position: relative; }
  .topbar-actions { margin-left: auto; }
  .mainnav { display: none; order: 3; width: 100%; flex-direction: column; border-radius: 14px; }
  .mainnav.open { display: flex; }
  .mainnav a { border-radius: 10px; }
  .brand-name { font-size: 20px; }
  .brand-tag { font-size: 12px; }
  .brand-logo { width: 42px; height: 42px; }
  .grid-3, .engine { grid-template-columns: minmax(0, 1fr); }
  .hero { grid-template-columns: minmax(0, 1fr); }
  .segmented span { padding: 8px 4px; }
  .engine-col + .engine-col { border-left: 0; border-top: 1px solid var(--line); }
  .compare { aspect-ratio: 4 / 3; min-height: 220px; }
  .stat-value { font-size: 18px; }
  .stat-value.accent { font-size: 22px; }
  .stat-label { font-size: 13px; }
}
@media (max-width: 560px) {
  .steps { grid-template-columns: 1fr; }
  .btn-row, .field-grid { grid-template-columns: 1fr; }
  .brand-tag { display: none; }
  .dz-title { font-size: 16px; }
  .qi { grid-template-columns: 44px minmax(0, 1fr); }
  .qi-thumb { width: 44px; height: 44px; }
  .qi-side { grid-column: 1 / -1; justify-content: space-between; }
  .stats { grid-template-columns: 1fr; padding: 6px 0; }
  .stat { padding: 10px; }
  .stat + .stat { border-left: 0; border-top: 1px solid var(--line); }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
}