Responsive Preview Tool — Test Websites on Any Device

/* ═══ TOKENS ═══ */ :root { --bg:#f9fafb; --bg2:#ffffff; --bg3:#f3f4f6; --bg4:#eaecef; --bg5:#e5e7eb; --border:#e5e7eb; --border2:#d1d5db; --border3:#9ca3af; --violet:#e84545; --violet2:#c73030; --v-dim:rgba(232,69,69,.08); --v-glow:rgba(232,69,69,.2); --cyan:#0ea5e9; --green:#5edf8a; --orange:#ff9f43; --red:#ff6b6b; --pink:#f778ba; --yellow:#ffd166; --text:#374151; --text2:#111827; --muted2:#9ca3af; --muted3:#6b7280; --sans:'Plus Jakarta Sans',system-ui,sans-serif; --mono:'JetBrains Mono',monospace; --nav-h:52px; --toolbar-h:64px; } *,*::before,*::after{box-sizing:border-box;margin:0;padding:0} html,body{height:100%;font-family:var(--sans);background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased;overflow:hidden} *{scrollbar-width:thin;scrollbar-color:var(--border2) transparent} *::-webkit-scrollbar{width:4px;height:4px} *::-webkit-scrollbar-thumb{background:var(--border2);border-radius:3px} /* grain */ body::before{display:none} @keyframes fadeUp{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}} @keyframes spin{to{transform:rotate(360deg)}} @keyframes pulse{0%,100%{opacity:1}50%{opacity:.4}} /* ── NAV ── */ nav{position:relative;z-index:200;height:var(--nav-h);background:rgba(255,255,255,.97); backdrop-filter:blur(20px);border-bottom:1px solid var(--border); display:flex;align-items:center;padding:0 16px;gap:12px;flex-shrink:0} .nav-logo{display:flex;align-items:center;gap:8px;text-decoration:none} .nav-lm{width:30px;height:30px;border-radius:8px;background:linear-gradient(135deg,var(--violet),#b8a8ff); display:flex;align-items:center;justify-content:center;font-family:var(--mono);font-size:11px;font-weight:700;color:#fff} .nav-lt{font-size:14px;font-weight:800;color:var(--text2);letter-spacing:-.02em} .nav-lt em{font-style:normal;color:var(--violet2)} .nav-div{width:1px;height:20px;background:var(--border2)} .nav-tool{font-size:11px;font-weight:700;color:var(--muted3);font-family:var(--mono);letter-spacing:.04em} .nav-sp{flex:1} .nav-links{display:flex;align-items:center;gap:3px} .nav-link{padding:5px 10px;border-radius:7px;font-size:11px;font-weight:600;color:var(--muted3);text-decoration:none;transition:all .13s;border:1px solid transparent} .nav-link:hover{color:var(--text2);background:var(--bg3);border-color:var(--border)} .nav-link.primary{background:linear-gradient(135deg,var(--violet),var(--violet2));color:#fff;border:none} .nav-link.primary:hover{transform:translateY(-1px);box-shadow:0 4px 14px rgba(124,111,239,.35)} /* ── LAYOUT ── */ .app{display:flex;flex-direction:column;height:calc(100vh - var(--nav-h));position:relative;z-index:1} /* ── TOOLBAR ── */ .toolbar{height:var(--toolbar-h);background:var(--bg2);border-bottom:1px solid var(--border); display:flex;align-items:center;padding:0 12px;gap:8px;flex-shrink:0;overflow-x:auto;scrollbar-width:none} .toolbar::-webkit-scrollbar{display:none} /* URL bar */ .url-wrap{flex:1;min-width:200px;max-width:540px;position:relative} .url-icon{position:absolute;left:11px;top:50%;transform:translateY(-50%);color:var(--muted3);font-size:13px;pointer-events:none;z-index:2} .url-input{width:100%;padding:9px 36px 9px 34px;background:var(--bg3);border:1.5px solid var(--border2); color:var(--text2);border-radius:10px;font-size:12px;font-family:var(--sans);outline:none;transition:all .15s} .url-input:focus{border-color:var(--violet);box-shadow:0 0 0 3px var(--v-dim)} .url-input::placeholder{color:var(--muted3)} .url-clear{position:absolute;right:9px;top:50%;transform:translateY(-50%);color:var(--muted3); background:none;border:none;cursor:pointer;font-size:13px;display:none;transition:color .13s;padding:2px} .url-clear:hover{color:var(--text2)} /* History dropdown */ .url-history{position:absolute;top:calc(100% + 6px);left:0;right:0;background:var(--bg3); border:1px solid var(--border2);border-radius:10px;z-index:500;display:none; box-shadow:0 8px 32px rgba(0,0,0,.5);overflow:hidden;max-height:220px;overflow-y:auto} .url-history.open{display:block} .hist-label{padding:7px 12px;font-size:9px;font-weight:700;color:var(--muted2); text-transform:uppercase;letter-spacing:.1em;font-family:var(--mono);border-bottom:1px solid var(--border)} .hist-item{display:flex;align-items:center;gap:8px;padding:8px 12px;cursor:pointer;transition:background .1s;font-size:11px} .hist-item:hover{background:var(--bg4)} .hist-item i{color:var(--muted3);font-size:10px;flex-shrink:0} .hist-item span{color:var(--text2);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;flex:1} .hist-item .del{color:var(--muted2);font-size:10px;flex-shrink:0;margin-left:auto;display:none} .hist-item:hover .del{display:block} .hist-empty{padding:14px 12px;font-size:11px;color:var(--muted3);text-align:center} .tb-btn{display:flex;align-items:center;gap:5px;padding:7px 11px;border-radius:8px; background:var(--bg3);border:1px solid var(--border);color:var(--muted3);font-size:11px; font-weight:700;cursor:pointer;font-family:var(--sans);transition:all .13s;white-space:nowrap;flex-shrink:0} .tb-btn:hover{color:var(--text2);border-color:var(--border2);background:var(--bg4)} .tb-btn.active{background:var(--v-dim);color:var(--violet2);border-color:var(--v-glow)} .tb-btn.primary{background:linear-gradient(135deg,var(--violet),var(--violet2));color:#fff;border:none;box-shadow:0 2px 10px rgba(124,111,239,.25)} .tb-btn.primary:hover{transform:translateY(-1px);box-shadow:0 4px 16px rgba(124,111,239,.4)} .tb-btn i{font-size:12px} .tb-div{width:1px;height:22px;background:var(--border);flex-shrink:0} /* zoom control */ .zoom-wrap{display:flex;align-items:center;gap:5px;flex-shrink:0} .zoom-val{font-family:var(--mono);font-size:10px;color:var(--muted3);min-width:36px;text-align:center} .zoom-range{-webkit-appearance:none;appearance:none;width:70px;height:3px;background:var(--border2);border-radius:2px;outline:none;cursor:pointer} .zoom-range::-webkit-slider-thumb{-webkit-appearance:none;width:13px;height:13px;border-radius:50%;background:var(--violet);border:2px solid var(--bg2);cursor:pointer} /* ── BODY AREA ── */ .body-area{flex:1;display:flex;overflow:hidden} /* ── DEVICE SIDEBAR ── */ .device-sidebar{width:188px;background:var(--bg2);border-right:1px solid var(--border); overflow-y:auto;flex-shrink:0;display:flex;flex-direction:column} .ds-header{padding:10px 12px;border-bottom:1px solid var(--border);flex-shrink:0} .ds-title{font-size:9px;font-weight:700;color:var(--muted2);text-transform:uppercase; letter-spacing:.12em;font-family:var(--mono)} .ds-section{padding:8px 8px 2px;font-size:9px;font-weight:700;color:var(--muted2); text-transform:uppercase;letter-spacing:.1em;font-family:var(--mono);margin-top:2px} .ds-section:first-of-type{margin-top:0} .ds-item{display:flex;align-items:center;gap:8px;padding:7px 10px;border-radius:8px; margin:1px 4px;cursor:pointer;transition:all .13s;border:1px solid transparent;user-select:none} .ds-item:hover{background:var(--bg3);border-color:var(--border)} .ds-item.active{background:var(--v-dim);border-color:var(--v-glow)} .ds-icon{width:20px;text-align:center;flex-shrink:0;font-size:12px;color:var(--muted3)} .ds-item.active .ds-icon{color:var(--violet2)} .ds-info{flex:1;min-width:0} .ds-name{font-size:11px;font-weight:700;color:var(--text2);display:block;white-space:nowrap;overflow:hidden;text-overflow:ellipsis} .ds-item.active .ds-name{color:var(--violet2)} .ds-dims{font-size:9px;color:var(--muted3);font-family:var(--mono);display:block} /* ── CANVAS AREA ── */ .canvas-area{flex:1;overflow:auto;position:relative;background:var(--bg); background-image:radial-gradient(circle,rgba(58,58,80,.35) 1px,transparent 1px); background-size:22px 22px} .canvas-inner{display:flex;align-items:flex-start;justify-content:center;padding:28px 20px; min-width:100%;min-height:100%;gap:20px;flex-wrap:wrap} /* compare mode */ .canvas-inner.compare{flex-wrap:nowrap;align-items:flex-start;justify-content:center} /* ── DEVICE FRAME ── */ .device-wrap{display:flex;flex-direction:column;align-items:center;gap:0;flex-shrink:0} .device-label-bar{display:flex;align-items:center;justify-content:space-between;width:100%; padding:7px 10px;background:var(--bg2);border:1px solid var(--border);border-bottom:none; border-radius:10px 10px 0 0;gap:8px} .dlb-name{font-size:11px;font-weight:700;color:var(--text2);white-space:nowrap;overflow:hidden;text-overflow:ellipsis} .dlb-dims{font-family:var(--mono);font-size:9px;color:var(--muted3)} .dlb-actions{display:flex;align-items:center;gap:3px;flex-shrink:0} .dlb-btn{width:24px;height:24px;border-radius:6px;border:1px solid transparent;background:none; color:var(--muted3);cursor:pointer;font-size:10px;display:flex;align-items:center;justify-content:center;transition:all .13s} .dlb-btn:hover{background:var(--bg4);color:var(--text2);border-color:var(--border)} /* phone bezel */ .bezel-phone{position:relative;background:#111;border-radius:36px;padding:14px 8px; box-shadow:0 0 0 2px #2a2a3a, 0 0 0 4px #1a1a28, 0 8px 40px rgba(0,0,0,.7), inset 0 0 0 1px rgba(255,255,255,.04); display:flex;flex-direction:column;align-items:center;gap:0} .bezel-phone::before{content:'';position:absolute;top:8px;left:50%;transform:translateX(-50%); width:60px;height:5px;background:#1a1a28;border-radius:3px;z-index:2} .bezel-phone::after{content:'';position:absolute;bottom:10px;left:50%;transform:translateX(-50%); width:32px;height:32px;background:#1a1a28;border-radius:50%;border:2px solid #2a2a38;z-index:2} .bezel-tablet{position:relative;background:#111;border-radius:20px;padding:16px 12px; box-shadow:0 0 0 2px #2a2a3a, 0 0 0 4px #1a1a28, 0 12px 48px rgba(0,0,0,.7), inset 0 0 0 1px rgba(255,255,255,.04)} .bezel-tablet::before{content:'';position:absolute;left:6px;top:50%;transform:translateY(-50%); width:4px;height:4px;background:#1a1a28;border-radius:50%;z-index:2} .bezel-laptop{position:relative;background:#141418;border-radius:10px 10px 0 0;padding:12px 12px 0; box-shadow:0 0 0 1.5px #2a2a38, inset 0 0 0 1px rgba(255,255,255,.03)} .bezel-laptop::before{content:'';position:absolute;top:6px;left:50%;transform:translateX(-50%); width:6px;height:6px;background:#1a1a28;border-radius:50%;z-index:2} .laptop-base{background:#1a1a22;height:16px;border-radius:0 0 14px 14px; box-shadow:0 0 0 1.5px #2a2a38;display:flex;align-items:center;justify-content:center} .laptop-base::after{content:'';width:60px;height:4px;background:#111;border-radius:2px} .bezel-none{border-radius:8px;overflow:hidden;box-shadow:0 4px 32px rgba(0,0,0,.5);border:1px solid var(--border)} /* iframe container inside bezel */ .iframe-container{position:relative;overflow:hidden;background:#fff;flex-shrink:0;border-radius:3px} .bezel-phone .iframe-container{border-radius:6px} .bezel-tablet .iframe-container{border-radius:6px} .bezel-laptop .iframe-container{border-radius:4px} .preview-iframe{display:block;border:none;background:#fff;transform-origin:top left} .preview-iframe.loading{opacity:0} /* iframe overlay states */ .iframe-state{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center; gap:12px;background:var(--bg3);z-index:5} .iframe-state.hidden{display:none} .state-icon{font-size:32px;opacity:.35} .state-title{font-size:13px;font-weight:700;color:var(--text2);text-align:center} .state-sub{font-size:11px;color:var(--muted3);text-align:center;max-width:220px;line-height:1.5} .spin-icon{font-size:22px;color:var(--violet2);animation:spin 1s linear infinite} /* ── COMPARE MODE ── */ .compare-header{position:sticky;top:0;z-index:50;background:rgba(17,17,24,.9); backdrop-filter:blur(10px);border-bottom:1px solid var(--border); padding:10px 16px;display:flex;align-items:center;gap:12px;flex-shrink:0} .cmp-select{background:var(--bg3);border:1px solid var(--border2);color:var(--text2); padding:5px 9px;border-radius:7px;font-size:11px;font-family:var(--mono);outline:none;cursor:pointer;flex:1;max-width:200px} .cmp-select:hover{border-color:var(--border3)} /* ── STATUS BAR ── */ .status-bar{height:26px;background:var(--bg2);border-top:1px solid var(--border); display:flex;align-items:center;padding:0 12px;gap:16px;flex-shrink:0} .stat-item{font-size:10px;color:var(--muted3);font-family:var(--mono);display:flex;align-items:center;gap:5px} .stat-dot{width:5px;height:5px;border-radius:50%} .stat-sp{flex:1} kbd{background:var(--bg3);border:1px solid var(--border2);border-radius:3px; padding:1px 4px;font-size:9px;font-family:var(--mono);color:var(--muted3)} /* ── TOAST ── */ .toast{position:fixed;bottom:36px;left:50%;transform:translateX(-50%) translateY(60px); background:var(--bg3);border:1px solid var(--border2);border-radius:10px; padding:9px 16px;font-size:11px;font-weight:700;color:var(--text2); z-index:9999;transition:transform .28s cubic-bezier(.34,1.56,.64,1); display:flex;align-items:center;gap:8px;white-space:nowrap; box-shadow:0 6px 24px rgba(0,0,0,.4);pointer-events:none} .toast.show{transform:translateX(-50%) translateY(0)} .toast i{color:var(--green)} .toast.warn i{color:var(--orange)} .toast.error i{color:var(--red)} .toast.info i{color:var(--cyan)} /* ── RULER ── */ .ruler-x{position:sticky;top:0;left:0;right:0;height:20px;background:var(--bg2); border-bottom:1px solid var(--border);z-index:20;overflow:hidden;display:none} .ruler-x.visible{display:block} /* ── INFO PANEL (right) ── */ .info-panel{width:0;background:var(--bg2);border-left:1px solid var(--border); overflow:hidden;transition:width .22s ease;flex-shrink:0} .info-panel.open{width:220px} .ip-scroll{padding:14px;display:flex;flex-direction:column;gap:10px;overflow-y:auto;height:100%} .ip-title{font-size:10px;font-weight:700;color:var(--muted2);text-transform:uppercase; letter-spacing:.1em;font-family:var(--mono)} .ip-row{display:flex;justify-content:space-between;align-items:center;font-size:11px} .ip-key{color:var(--muted3)} .ip-val{color:var(--text2);font-family:var(--mono);font-size:10px} .ip-div{height:1px;background:var(--border)} .ip-badge{display:inline-flex;align-items:center;gap:4px;padding:3px 8px;border-radius:5px; font-size:10px;font-weight:700;font-family:var(--mono)} .badge-mobile{background:rgba(94,223,138,.12);color:var(--green);border:1px solid rgba(94,223,138,.2)} .badge-tablet{background:rgba(78,205,196,.12);color:var(--cyan);border:1px solid rgba(78,205,196,.2)} .badge-desktop{background:rgba(124,111,239,.1);color:var(--violet2);border:1px solid var(--v-glow)} /* blocked site message */ .blocked-banner{display:none;align-items:center;gap:10px;padding:10px 14px;background:rgba(255,159,67,.08); border:1px solid rgba(255,159,67,.2);border-radius:8px;font-size:11px;color:var(--orange);margin:12px 0;flex-shrink:0} .blocked-banner i{flex-shrink:0} /* ── SCREENSHOT FLASH ── */ .screenshot-flash{position:fixed;inset:0;background:white;z-index:99999; opacity:0;pointer-events:none;transition:opacity .1s} .screenshot-flash.flash{opacity:.7} /* scrollable page layout for below the tool */ .page-outer{height:calc(100vh - var(--nav-h));display:flex;flex-direction:column;overflow:hidden} /* ── SEO SECTION (scrollable) - shown below on larger screens ── */ .seo-section{padding:40px 20px;background:var(--bg);position:relative;z-index:1;flex-shrink:0} .seo-inner{max-width:900px;margin:0 auto} .seo-heading{font-size:18px;font-weight:800;color:var(--text2);text-align:center;margin-bottom:6px;letter-spacing:-.02em} .seo-sub{font-size:12px;color:var(--muted3);text-align:center;margin-bottom:28px} .feature-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:12px} .feature-card{background:var(--bg2);border:1px solid var(--border);border-radius:14px;padding:16px;transition:all .15s} .feature-card:hover{border-color:var(--border2);transform:translateY(-2px)} .fc-icon{width:36px;height:36px;border-radius:9px;display:flex;align-items:center;justify-content:center;font-size:14px;margin-bottom:10px} .fc-icon-v{background:var(--v-dim);color:var(--violet2);border:1px solid var(--v-glow)} .fc-icon-c{background:rgba(78,205,196,.09);color:var(--cyan);border:1px solid rgba(78,205,196,.18)} .fc-icon-g{background:rgba(94,223,138,.08);color:var(--green);border:1px solid rgba(94,223,138,.16)} .fc-icon-o{background:rgba(255,159,67,.08);color:var(--orange);border:1px solid rgba(255,159,67,.16)} .fc-icon-p{background:rgba(247,120,186,.08);color:var(--pink);border:1px solid rgba(247,120,186,.16)} .fc-icon-y{background:rgba(255,209,102,.08);color:var(--yellow);border:1px solid rgba(255,209,102,.16)} .fc-title{font-size:12px;font-weight:700;color:var(--text2);margin-bottom:4px} .fc-desc{font-size:11px;color:var(--muted3);line-height:1.6} /* ── DEVICE PICKER MODAL ── */ .modal-ov{position:fixed;inset:0;background:rgba(0,0,0,.6);z-index:1000; display:none;align-items:center;justify-content:center;padding:20px} .modal-ov.open{display:flex} .modal-box{background:var(--bg2);border:1px solid var(--border2);border-radius:16px; width:100%;max-width:460px;overflow:hidden;animation:fadeUp .22s ease} .modal-head{padding:14px 18px;border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between} .modal-title{font-size:13px;font-weight:700;color:var(--text2)} .modal-close{background:none;border:none;color:var(--muted3);font-size:18px;cursor:pointer;padding:2px 6px;border-radius:5px;transition:all .1s} .modal-close:hover{color:var(--text);background:var(--bg3)} .modal-body{padding:16px;display:flex;flex-direction:column;gap:10px;max-height:400px;overflow-y:auto} .csize-row{display:flex;align-items:center;gap:8px;flex-wrap:wrap} .csize-inp{flex:1;min-width:70px;background:var(--bg3);border:1.5px solid var(--border2);color:var(--text2); padding:7px 10px;border-radius:8px;font-size:12px;font-family:var(--mono);outline:none;transition:all .15s} .csize-inp:focus{border-color:var(--violet)} .modal-btn{padding:9px 16px;border-radius:9px;font-size:12px;font-weight:700;border:none;cursor:pointer; font-family:var(--sans);transition:all .15s} .mbt-violet{background:linear-gradient(135deg,var(--violet),var(--violet2));color:#fff} .mbt-violet:hover{transform:translateY(-1px);box-shadow:0 4px 14px rgba(124,111,239,.35)} .preset-chips{display:flex;flex-wrap:wrap;gap:6px} .pchip{padding:4px 10px;border-radius:6px;font-size:10px;font-weight:700;font-family:var(--mono); background:var(--bg3);border:1px solid var(--border);color:var(--muted3);cursor:pointer;transition:all .13s} .pchip:hover{border-color:var(--border2);color:var(--text)} .bezel-toggle{display:flex;gap:4px} .bt-opt{padding:5px 10px;border-radius:6px;font-size:10px;font-weight:700;font-family:var(--mono); background:var(--bg3);border:1px solid var(--border);color:var(--muted3);cursor:pointer;transition:all .13s} .bt-opt.active{background:var(--v-dim);color:var(--violet2);border-color:var(--v-glow)}

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