*{margin:0;padding:0;box-sizing:border-box}

:root{
  --brand:#4f46e5;
  --brand-light:#818cf8;
  --brand-dark:#3730a3;
  --brand-bg:linear-gradient(135deg,#4f46e5 0%,#7c3aed 100%);
  --accent:#06b6d4;
  --success:#10b981;
  --danger:#ef4444;
  --bg:#fafbff;
  --surface:#fff;
  --surface-2:#f4f5fb;
  --border:#e5e7ef;
  --text:#1e1e2e;
  --text-2:#64748b;
  --text-3:#94a3b8;
  --radius:14px;
  --shadow:0 1px 3px rgba(0,0,0,.06),0 1px 2px rgba(0,0,0,.04);
  --shadow-lg:0 10px 40px rgba(79,70,229,.1),0 4px 12px rgba(0,0,0,.05);
}

body{font-family:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;background:var(--bg);color:var(--text);min-height:100vh;display:flex;flex-direction:column;align-items:center;-webkit-font-smoothing:antialiased}
a{color:var(--brand)}

/* ── NAV BAR ── */
.navbar{width:100%;background:var(--surface);border-bottom:1px solid var(--border);padding:0 24px;display:flex;align-items:center;justify-content:center;height:56px;position:sticky;top:0;z-index:50;backdrop-filter:blur(12px);background:rgba(255,255,255,.85)}
.navbar-inner{max-width:1100px;width:100%;display:flex;align-items:center;justify-content:space-between}
.nav-logo{font-size:1.25rem;font-weight:800;text-decoration:none;color:var(--text);letter-spacing:-.03em}
.nav-logo span{background:var(--brand-bg);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.nav-links{display:flex;gap:24px}
.nav-links a{text-decoration:none;color:var(--text-2);font-size:.85rem;font-weight:500;transition:color .15s}
.nav-links a:hover{color:var(--brand)}
.nav-badge{background:var(--brand);color:#fff;font-size:.65rem;padding:2px 6px;border-radius:6px;font-weight:600;margin-left:4px;vertical-align:middle}

/* ── HERO ── */
.hero{text-align:center;padding:80px 24px 48px;max-width:680px}
.hero h1{font-size:3rem;font-weight:800;letter-spacing:-.04em;line-height:1.1}
.hero h1 span{background:var(--brand-bg);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.hero p{color:var(--text-2);margin-top:16px;font-size:1.15rem;line-height:1.6}
.hero-badges{display:flex;gap:12px;justify-content:center;margin-top:24px;flex-wrap:wrap}
.hero-badge{display:inline-flex;align-items:center;gap:6px;padding:6px 14px;background:var(--surface);border:1px solid var(--border);border-radius:100px;font-size:.8rem;color:var(--text-2);font-weight:500}
.hero-badge svg{width:16px;height:16px}

/* ── STATS BAR ── */
.stats-bar{display:flex;justify-content:center;gap:48px;padding:24px;margin-bottom:8px;flex-wrap:wrap}
.stat-item{text-align:center}
.stat-num{font-size:1.6rem;font-weight:800;background:var(--brand-bg);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.stat-label{font-size:.78rem;color:var(--text-3);margin-top:2px;font-weight:500}

/* ── AD SLOTS ── */
.ad-slot{width:100%;max-width:728px;min-height:90px;margin:20px auto;display:flex;align-items:center;justify-content:center;color:var(--text-3);font-size:.75rem;border:1px dashed var(--border);border-radius:var(--radius)}
.ad-slot-side{position:fixed;top:50%;transform:translateY(-50%);width:160px;min-height:600px;border:1px dashed var(--border);border-radius:var(--radius);display:none;align-items:center;justify-content:center;color:var(--text-3);font-size:.75rem}
.ad-slot-left{left:20px}
.ad-slot-right{right:20px}
@media(min-width:1200px){.ad-slot-side{display:flex}}

/* ── TOOL SECTIONS ── */
.tools-section{max-width:900px;width:100%;padding:0 24px 12px}
.section-header{display:flex;align-items:center;gap:10px;margin-bottom:20px}
.section-header h2{font-size:1.1rem;font-weight:700;color:var(--text)}
.section-line{flex:1;height:1px;background:var(--border)}
.section-count{font-size:.75rem;color:var(--text-3);font-weight:500;background:var(--surface-2);padding:2px 10px;border-radius:100px}

/* ── TOOL CARDS ── */
.tools-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:14px;margin-bottom:48px}
.tool-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:22px 20px;text-decoration:none;color:var(--text);transition:all .2s;position:relative;overflow:hidden}
.tool-card:hover{border-color:var(--brand-light);box-shadow:var(--shadow-lg);transform:translateY(-2px)}
.tool-card::before{content:'';position:absolute;top:0;left:0;right:0;height:3px;background:var(--brand-bg);opacity:0;transition:opacity .2s}
.tool-card:hover::before{opacity:1}
.tool-card .tool-icon{width:40px;height:40px;border-radius:10px;display:flex;align-items:center;justify-content:center;font-size:1.2rem;margin-bottom:12px}
.tool-card .tool-icon.compress{background:#ede9fe;color:#7c3aed}
.tool-card .tool-icon.convert{background:#e0f2fe;color:#0284c7}
.tool-card .tool-icon.resize{background:#fce7f3;color:#db2777}
.tool-card .tool-name{font-size:.95rem;font-weight:700;display:block;letter-spacing:-.01em}
.tool-card .tool-desc{color:var(--text-2);font-size:.8rem;margin-top:6px;display:block;line-height:1.5}
.tool-card .tool-format{display:inline-block;margin-top:10px;font-size:.7rem;color:var(--text-3);background:var(--surface-2);padding:3px 10px;border-radius:6px;font-weight:500;letter-spacing:.02em}

/* ── TOOL PAGE HEADER ── */
.header{text-align:center;padding:48px 24px 24px}
.header h1{font-size:2.2rem;font-weight:800;letter-spacing:-.03em}
.header h1 span{background:var(--brand-bg);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.header p{color:var(--text-2);margin-top:10px;font-size:1rem;max-width:480px;margin-left:auto;margin-right:auto;line-height:1.6}

.main{width:100%;max-width:600px;padding:0 24px 48px}

/* ── UPLOAD AREA ── */
.upload-area{border:2px dashed var(--border);border-radius:20px;padding:56px 24px;text-align:center;cursor:pointer;transition:all .25s;position:relative;background:var(--surface)}
.upload-area:hover,.upload-area.dragover{border-color:var(--brand);background:rgba(79,70,229,.03);box-shadow:0 0 0 4px rgba(79,70,229,.08)}
.upload-area input{display:none}
.upload-icon{font-size:3.5rem;margin-bottom:16px;display:block}
.upload-text{font-size:1.05rem;color:var(--text-2)}
.upload-text strong{color:var(--brand);font-weight:600}
.upload-hint{font-size:.8rem;color:var(--text-3);margin-top:10px}
.upload-area.has-file{border-style:solid;border-color:var(--border)}

/* ── FILE INFO ── */
.file-info{display:none;align-items:center;gap:14px;padding:16px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);margin-top:16px;box-shadow:var(--shadow)}
.file-info.visible{display:flex}
.file-thumb{border-radius:8px;background:var(--surface-2);overflow:hidden}
.file-thumb-img{max-width:72px;max-height:72px;border-radius:8px;display:block}
.file-meta{flex:1;min-width:0}
.file-name{font-weight:600;font-size:.88rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;color:var(--text)}
.file-size{color:var(--text-3);font-size:.8rem;margin-top:3px}
.file-remove{background:none;border:none;color:var(--text-3);font-size:1.3rem;cursor:pointer;padding:4px 8px;border-radius:8px;transition:all .15s}
.file-remove:hover{color:var(--danger);background:rgba(239,68,68,.08)}

/* ── ACTION BUTTON ── */
.action-btn{display:none;width:100%;padding:16px;border:none;border-radius:12px;background:var(--brand-bg);color:#fff;font-size:1rem;font-weight:600;cursor:pointer;transition:all .2s;margin-top:20px;box-shadow:0 4px 14px rgba(79,70,229,.3)}
.action-btn.visible{display:block}
.action-btn:hover{transform:translateY(-1px);box-shadow:0 6px 20px rgba(79,70,229,.4)}
.action-btn:disabled{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none}

/* ── OPTIONS PANEL ── */
.options-panel{display:none;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:20px;margin-top:16px;box-shadow:var(--shadow)}
.options-panel.visible{display:block}
.option-row{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px}
.option-row:last-child{margin-bottom:0}
.option-label{font-size:.88rem;color:var(--text);font-weight:500}
.option-value{font-size:.82rem;color:var(--brand);min-width:48px;text-align:right;font-weight:600}
.option-slider{-webkit-appearance:none;appearance:none;width:160px;height:6px;background:var(--surface-2);border-radius:3px;outline:none;cursor:pointer}
.option-slider::-webkit-slider-thumb{-webkit-appearance:none;appearance:none;width:20px;height:20px;background:var(--brand);border-radius:50%;cursor:pointer;box-shadow:0 2px 6px rgba(79,70,229,.3)}
.option-select{background:var(--surface);border:1px solid var(--border);color:var(--text);padding:8px 12px;border-radius:8px;font-size:.85rem;cursor:pointer}
.option-input{background:var(--surface);border:1px solid var(--border);color:var(--text);padding:8px 12px;border-radius:8px;font-size:.85rem;width:100px;text-align:center}

/* ── PROGRESS ── */
.progress-wrap{display:none;margin-top:20px}
.progress-wrap.visible{display:block}
.progress-bar-bg{width:100%;height:8px;background:var(--surface-2);border-radius:4px;overflow:hidden}
.progress-bar{height:100%;background:var(--brand-bg);border-radius:4px;transition:width .3s;width:0%}
.progress-text{text-align:center;color:var(--text-2);font-size:.85rem;margin-top:10px}

/* ── RESULT ── */
.result{display:none;margin-top:24px;text-align:center}
.result.visible{display:block}
.result-preview{max-width:300px;max-height:300px;border-radius:var(--radius);margin:0 auto 20px;display:block;background:var(--surface-2);box-shadow:var(--shadow)}
.result-stats{display:flex;justify-content:center;gap:32px;margin-bottom:20px;font-size:.85rem}
.stat{text-align:center;padding:12px 16px;background:var(--surface-2);border-radius:10px;min-width:80px}
.stat-label{color:var(--text-3);font-size:.7rem;display:block;margin-bottom:4px;text-transform:uppercase;letter-spacing:.04em;font-weight:600}
.stat-value{color:var(--text);font-weight:700;font-size:1rem}
.stat-value.green{color:var(--success)}
.stat-value.red{color:var(--danger)}
.download-btn{display:inline-block;padding:14px 48px;background:var(--success);color:#fff;border:none;border-radius:12px;font-size:1rem;font-weight:600;cursor:pointer;text-decoration:none;transition:all .2s;box-shadow:0 4px 14px rgba(16,185,129,.3)}
.download-btn:hover{transform:translateY(-1px);box-shadow:0 6px 20px rgba(16,185,129,.4)}
.again-btn{display:inline-block;margin-top:14px;background:none;border:1px solid var(--border);color:var(--text-2);padding:10px 28px;border-radius:10px;font-size:.88rem;cursor:pointer;transition:all .15s;font-weight:500}
.again-btn:hover{border-color:var(--brand-light);color:var(--brand)}

/* ── BATCH ── */
.batch-info{display:none;margin-top:16px}
.batch-info.visible{display:block}
.batch-list{list-style:none;max-height:200px;overflow-y:auto}
.batch-item{display:flex;align-items:center;justify-content:space-between;padding:10px 14px;background:var(--surface);border:1px solid var(--border);border-radius:10px;margin-bottom:6px;font-size:.85rem}
.batch-item .name{flex:1;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin-right:12px;font-weight:500}
.batch-item .size{color:var(--text-3);font-size:.8rem}
.batch-count{color:var(--text-2);font-size:.85rem;margin-top:10px;text-align:center;font-weight:500}

/* ── FEATURES ── */
.features{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:16px;margin-top:40px}
.feat{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:20px 16px;text-align:center;transition:all .2s}
.feat:hover{box-shadow:var(--shadow);transform:translateY(-1px)}
.feat-icon{font-size:1.6rem;margin-bottom:8px}
.feat-title{font-weight:700;font-size:.82rem;color:var(--text)}
.feat-desc{color:var(--text-3);font-size:.72rem;margin-top:4px;line-height:1.4}

/* ── TRUST SECTION ── */
.trust-section{max-width:700px;width:100%;padding:48px 24px;text-align:center}
.trust-section h3{font-size:1.1rem;font-weight:700;margin-bottom:20px;color:var(--text)}
.trust-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.trust-item{display:flex;flex-direction:column;align-items:center;gap:8px}
.trust-icon{width:48px;height:48px;background:var(--surface-2);border-radius:12px;display:flex;align-items:center;justify-content:center;font-size:1.4rem}
.trust-label{font-size:.78rem;color:var(--text-2);font-weight:500}

/* ── FOOTER ── */
.footer{text-align:center;padding:40px 24px;color:var(--text-3);font-size:.8rem;border-top:1px solid var(--border);width:100%;margin-top:20px}
.footer a{color:var(--text-2)}
.footer-links{display:flex;justify-content:center;gap:20px;margin-bottom:12px}
.footer-links a{text-decoration:none;font-weight:500;font-size:.82rem}

/* ── ERROR ── */
.error-msg{display:none;background:#fef2f2;border:1px solid #fecaca;color:var(--danger);padding:12px 16px;border-radius:10px;margin-top:16px;font-size:.88rem;font-weight:500}
.error-msg.visible{display:block}

/* ── BREADCRUMB ── */
.breadcrumb{padding:14px 24px;font-size:.82rem;color:var(--text-3);width:100%;max-width:600px}
.breadcrumb a{color:var(--text-2);text-decoration:none;font-weight:500}
.breadcrumb a:hover{color:var(--brand)}

/* ── RESPONSIVE ── */
@media(max-width:640px){
  .hero h1{font-size:2.2rem}
  .hero p{font-size:1rem}
  .tools-grid{grid-template-columns:1fr}
  .stats-bar{gap:24px}
  .stat-num{font-size:1.3rem}
  .trust-grid{grid-template-columns:1fr 1fr 1fr;gap:12px}
  .nav-links{gap:16px}
  .nav-links a{font-size:.8rem}
}

/* ── DOWNLOAD ALL ── */
.download-all-btn{display:inline-block;padding:14px 40px;background:var(--brand-bg);color:#fff;border:none;border-radius:12px;font-size:1rem;font-weight:600;cursor:pointer;text-decoration:none;transition:all .2s;margin-top:12px;box-shadow:0 4px 14px rgba(79,70,229,.3)}
.download-all-btn:hover{transform:translateY(-1px);box-shadow:0 6px 20px rgba(79,70,229,.4)}