/* ═══════════════════ RESET & BASE ═══════════════════ */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
html,body{height:100%;width:100%;overflow:hidden;background:#0b0b1a;color:#e8e8f5;font-family:'Inter',sans-serif;-webkit-tap-highlight-color:transparent;}

/* ═══════════════════ TOKENS ═══════════════════ */
:root{
  --bg0:#0b0b1a;--bg1:#12122a;--bg2:#1a1a3a;--bg3:#232348;
  --accent:#7B5EA7;--accent2:#00D4FF;--accent-grad:linear-gradient(135deg,#7B5EA7,#00D4FF);
  --text:#e8e8f5;--text2:#9999bb;--text3:#5555aa;
  --glass:rgba(255,255,255,0.05);--glass2:rgba(255,255,255,0.09);
  --border:rgba(255,255,255,0.08);--radius:16px;--radius-sm:10px;
  --shadow:0 8px 32px rgba(0,0,0,0.5);
}

/* ═══════════════════ SPLASH ═══════════════════ */
.splash{position:fixed;inset:0;background:var(--bg0);display:flex;align-items:center;justify-content:center;z-index:999;transition:opacity .5s,transform .5s;}
.splash.fade-out{opacity:0;transform:scale(1.05);pointer-events:none;}
.splash-inner{display:flex;flex-direction:column;align-items:center;gap:14px;}
.logo-ring{width:88px;height:88px;animation:pulse-ring 2s ease-in-out infinite;}
@keyframes pulse-ring{0%,100%{transform:scale(1);}50%{transform:scale(1.08);}}
.splash-title{font-family:'Outfit',sans-serif;font-size:2rem;font-weight:800;letter-spacing:-1px;}
.splash-title span{background:var(--accent-grad);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;}
.splash-sub{color:var(--text2);font-size:.9rem;letter-spacing:2px;text-transform:uppercase;}
.splash-loader{display:flex;gap:8px;margin-top:8px;}
.splash-loader span{width:8px;height:8px;border-radius:50%;background:var(--accent);animation:bounce .9s ease-in-out infinite;}
.splash-loader span:nth-child(2){animation-delay:.15s;background:var(--accent2);}
.splash-loader span:nth-child(3){animation-delay:.3s;}
@keyframes bounce{0%,100%{transform:translateY(0);}50%{transform:translateY(-10px);}}

/* ═══════════════════ APP SHELL ═══════════════════ */
.app{position:fixed;inset:0;display:flex;flex-direction:column;background:var(--bg0);}
.hidden{display:none!important;}

/* ── HEADER ── */
.app-header{display:flex;align-items:center;justify-content:space-between;padding:12px 18px;background:var(--bg1);border-bottom:1px solid var(--border);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);position:relative;z-index:10;}
.header-logo{display:flex;align-items:center;gap:10px;font-family:'Outfit',sans-serif;font-size:1.15rem;font-weight:700;}
.header-logo b{background:var(--accent-grad);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;}
.hdr-btn{background:var(--glass);border:1px solid var(--border);border-radius:10px;padding:7px 10px;color:var(--text);cursor:pointer;position:relative;transition:background .2s;}
.hdr-btn:hover{background:var(--glass2);}
.page-badge{position:absolute;top:-4px;right:-4px;background:var(--accent-grad);color:#fff;font-size:10px;font-weight:700;border-radius:999px;min-width:18px;height:18px;display:flex;align-items:center;justify-content:center;padding:0 4px;}

/* ── SCREENS ── */
.screen{flex:1;overflow-y:auto;display:none;flex-direction:column;}
.screen.active{display:flex;}

/* ═══════════════════ SCREEN 1 – HOME ═══════════════════ */
.home-hero{flex:1;display:flex;align-items:center;justify-content:center;padding:20px;}
.hero-graphic{display:flex;flex-direction:column;align-items:center;gap:16px;}
.camera-outline{width:200px;height:150px;position:relative;border-radius:12px;}
.cam-corner{position:absolute;width:24px;height:24px;border-color:var(--accent2);border-style:solid;}
.cam-corner.tl{top:0;left:0;border-width:3px 0 0 3px;border-radius:4px 0 0 0;}
.cam-corner.tr{top:0;right:0;border-width:3px 3px 0 0;border-radius:0 4px 0 0;}
.cam-corner.bl{bottom:0;left:0;border-width:0 0 3px 3px;border-radius:0 0 0 4px;}
.cam-corner.br{bottom:0;right:0;border-width:0 3px 3px 0;border-radius:0 0 4px 0;}
.scan-line{position:absolute;left:8px;right:8px;height:2px;background:linear-gradient(90deg,transparent,var(--accent2),transparent);top:50%;animation:scanMove 2s ease-in-out infinite;}
@keyframes scanMove{0%,100%{top:10%;}50%{top:88%;}}
.hero-label{color:var(--text2);font-size:.9rem;letter-spacing:.5px;}
.home-actions{padding:16px 20px 28px;display:flex;flex-direction:column;gap:12px;}
.pdf-ready-banner{margin:0 20px 16px;background:linear-gradient(135deg,rgba(123,94,167,.25),rgba(0,212,255,.15));border:1px solid rgba(0,212,255,.3);border-radius:var(--radius-sm);padding:12px 16px;display:flex;align-items:center;gap:10px;font-size:.87rem;color:var(--accent2);animation:fadeSlideUp .4s ease;}
@keyframes fadeSlideUp{from{opacity:0;transform:translateY(12px);}to{opacity:1;transform:translateY(0);}}

/* ═══════════════════ BUTTONS ═══════════════════ */
.action-btn{display:flex;align-items:center;justify-content:center;gap:10px;border:none;border-radius:var(--radius);padding:15px 20px;font-size:1rem;font-weight:600;font-family:'Inter',sans-serif;cursor:pointer;transition:all .2s;letter-spacing:.3px;}
.action-btn.primary{background:var(--accent-grad);color:#fff;box-shadow:0 4px 24px rgba(123,94,167,.4);}
.action-btn.primary:active{transform:scale(.97);}
.action-btn.secondary{background:var(--glass2);color:var(--text);border:1px solid var(--border);}
.action-btn.secondary:active{background:var(--bg3);}
.action-btn.ghost{background:transparent;color:var(--text2);border:1px solid var(--border);}
.action-btn.sm{padding:10px 16px;font-size:.88rem;border-radius:var(--radius-sm);}

/* ═══════════════════ SCREEN 2 – CAMERA ═══════════════════ */
#screenCamera{background:#000;position:relative;}
.viewfinder-wrap{flex:1;position:relative;overflow:hidden;}
#cameraVideo{width:100%;height:100%;object-fit:cover;}
.overlay-canvas{position:absolute;inset:0;width:100%;height:100%;pointer-events:none;}
.vf-corners{position:absolute;inset:16px;pointer-events:none;}
.vf-c{position:absolute;width:28px;height:28px;border-color:rgba(255,255,255,.7);border-style:solid;}
.vf-c.tl{top:0;left:0;border-width:3px 0 0 3px;border-radius:4px 0 0 0;}
.vf-c.tr{top:0;right:0;border-width:3px 3px 0 0;border-radius:0 4px 0 0;}
.vf-c.bl{bottom:0;left:0;border-width:0 0 3px 3px;border-radius:0 0 0 4px;}
.vf-c.br{bottom:0;right:0;border-width:0 3px 3px 0;border-radius:0 0 4px 0;}
.detect-label{position:absolute;bottom:16px;left:50%;transform:translateX(-50%);background:rgba(0,0,0,.6);color:#fff;font-size:.8rem;padding:6px 16px;border-radius:999px;white-space:nowrap;backdrop-filter:blur(6px);}
.doc-detect-ring{position:absolute;inset:30px;border:2px dashed transparent;border-radius:12px;transition:border-color .4s;pointer-events:none;}
.doc-detect-ring.found{border-color:var(--accent2);animation:ringPulse 1s ease-in-out infinite;}
@keyframes ringPulse{0%,100%{opacity:1;}50%{opacity:.4;}}
.cam-toolbar{display:flex;align-items:center;justify-content:space-around;padding:20px 30px 30px;background:rgba(0,0,0,.8);}
.cam-ctrl{background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.2);border-radius:50%;width:52px;height:52px;display:flex;align-items:center;justify-content:center;color:#fff;cursor:pointer;transition:background .2s;}
.cam-ctrl:active{background:rgba(255,255,255,.25);}
.capture-btn{width:72px;height:72px;border-radius:50%;background:rgba(255,255,255,.2);border:3px solid #fff;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:transform .15s;}
.capture-btn:active{transform:scale(.92);}
.capture-inner{width:52px;height:52px;background:#fff;border-radius:50%;}

/* ═══════════════════ SCREEN 3 – EDIT ═══════════════════ */
.edit-header{display:flex;align-items:center;justify-content:space-between;padding:10px 14px;background:var(--bg1);border-bottom:1px solid var(--border);}
.edit-title{font-weight:600;font-size:1rem;}
.icon-btn{background:var(--glass);border:1px solid var(--border);border-radius:var(--radius-sm);padding:8px 14px;color:var(--text);cursor:pointer;font-size:.88rem;font-weight:600;display:flex;align-items:center;gap:6px;transition:all .2s;}
.icon-btn.accent{background:var(--accent-grad);border-color:transparent;color:#fff;}
.icon-btn:active{transform:scale(.96);}

.canvas-wrapper{flex:1;position:relative;overflow:visible;background:#111;display:flex;align-items:center;justify-content:center;}
#editCanvas{max-width:100%;max-height:100%;display:block;}
.text-layer{position:absolute;pointer-events:none;top:0;left:0;width:100%;height:100%;}

/* Crop overlay – JS positions it to exactly cover the canvas */
.crop-overlay{position:absolute;pointer-events:none;box-sizing:border-box;}
.crop-overlay.hidden{display:none;}
.crop-svg{position:absolute;inset:0;width:100%;height:100%;overflow:visible;}
/* Corner handle groups */
.ch{cursor:crosshair;pointer-events:all;touch-action:none;}
.ch-hit{fill:transparent;}
.ch-ring{fill:none;stroke:#00D4FF;stroke-width:2.5;}
.ch-dot{fill:#00D4FF;}
.ch-lbl{fill:#fff;font-size:9px;font-weight:700;text-anchor:middle;pointer-events:none;font-family:'Inter',sans-serif;}
.ch.active .ch-dot{fill:#fff;r:7px;}
.ch.active .ch-ring{stroke:#fff;}

/* Tool Tabs */
.tool-tabs{display:flex;background:var(--bg1);border-top:1px solid var(--border);padding:6px;}
.tab-btn{flex:1;padding:10px;border:none;background:transparent;color:var(--text2);font-size:.88rem;font-weight:600;border-radius:var(--radius-sm);cursor:pointer;transition:all .2s;}
.tab-btn.active{background:var(--accent-grad);color:#fff;}

/* Tool Panels */
.tool-panel{display:none;padding:16px;background:var(--bg1);border-top:1px solid var(--border);overflow-y:auto;max-height:220px;}
.tool-panel.active{display:block;}

/* Sliders */
.sliders-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px 16px;}
.slider-item label{display:flex;justify-content:space-between;font-size:.78rem;color:var(--text2);margin-bottom:5px;}
.slider-item label span{color:var(--accent2);font-weight:600;}
.styled-range{-webkit-appearance:none;appearance:none;width:100%;height:4px;border-radius:4px;background:var(--bg3);outline:none;}
.styled-range::-webkit-slider-thumb{-webkit-appearance:none;appearance:none;width:18px;height:18px;border-radius:50%;background:var(--accent-grad);cursor:pointer;box-shadow:0 0 8px rgba(123,94,167,.6);}

/* Presets */
.preset-chips{display:flex;gap:8px;margin-top:12px;flex-wrap:wrap;}
.chip{background:var(--bg3);border:1px solid var(--border);border-radius:999px;padding:6px 14px;color:var(--text2);font-size:.8rem;cursor:pointer;transition:all .2s;}
.chip:hover,.chip:active{background:var(--accent);color:#fff;border-color:transparent;}

/* Crop buttons */
.crop-actions{display:grid;grid-template-columns:1fr 1fr;gap:10px;}
.crop-btn{display:flex;align-items:center;gap:8px;background:var(--bg3);border:1px solid var(--border);border-radius:var(--radius-sm);padding:10px 12px;color:var(--text);font-size:.83rem;font-weight:600;cursor:pointer;transition:all .2s;}
.crop-btn:active{transform:scale(.96);}
.crop-btn.accent{background:var(--accent-grad);border-color:transparent;color:#fff;}

/* Text tools */
.text-controls{display:flex;flex-direction:column;gap:10px;}
.text-input-field{background:var(--bg3);border:1px solid var(--border);border-radius:var(--radius-sm);padding:10px 14px;color:var(--text);font-size:.9rem;width:100%;outline:none;}
.text-input-field:focus{border-color:var(--accent);}
.text-row{display:flex;align-items:center;gap:12px;flex-wrap:wrap;}
.color-pick-wrap{display:flex;align-items:center;gap:6px;font-size:.8rem;color:var(--text2);}
.color-pick{-webkit-appearance:none;appearance:none;width:36px;height:28px;border:2px solid var(--border);border-radius:6px;cursor:pointer;background:none;padding:0;}
.color-pick::-webkit-color-swatch-wrapper{padding:0;}
.color-pick::-webkit-color-swatch{border:none;border-radius:4px;}
.toggle-wrap{display:flex;align-items:center;gap:6px;font-size:.8rem;color:var(--text2);cursor:pointer;}
.toggle-label{}
.sel-field,.num-field{background:var(--bg3);border:1px solid var(--border);border-radius:var(--radius-sm);padding:7px 10px;color:var(--text);font-size:.85rem;outline:none;}
.sel-field{flex:1;}.num-field{width:64px;}
.unit-label{color:var(--text2);font-size:.82rem;}
.hint-text{font-size:.77rem;color:var(--text3);}

/* ═══════════════════ SCREEN 4 – PAGES ═══════════════════ */
.pages-grid{flex:1;display:grid;grid-template-columns:repeat(2,1fr);gap:14px;padding:16px;overflow-y:auto;}
.page-card{background:var(--bg2);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;position:relative;aspect-ratio:0.707;}
.page-card img{width:100%;height:100%;object-fit:cover;}
.page-card .page-num{position:absolute;bottom:6px;left:6px;background:rgba(0,0,0,.7);color:#fff;font-size:.72rem;border-radius:6px;padding:2px 8px;}
.page-card .del-page{position:absolute;top:6px;right:6px;background:rgba(200,50,50,.85);border:none;border-radius:50%;width:26px;height:26px;color:#fff;cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:14px;}
.pages-footer{padding:14px 20px 24px;border-top:1px solid var(--border);}
.pdf-btn{background:var(--accent-grad)!important;border-color:transparent!important;color:#fff!important;}

/* ═══════════════════ MODALS ═══════════════════ */
.modal-backdrop{position:fixed;inset:0;background:rgba(0,0,0,.75);display:flex;align-items:center;justify-content:center;z-index:500;backdrop-filter:blur(6px);}
.modal-backdrop.hidden{display:none;}
.modal{background:var(--bg2);border:1px solid var(--border);border-radius:20px;padding:28px 24px;width:min(340px,90vw);display:flex;flex-direction:column;align-items:center;gap:14px;text-align:center;box-shadow:var(--shadow);}
.modal.small{width:200px;}
.modal h2{font-family:'Outfit',sans-serif;font-size:1.3rem;font-weight:700;}
.modal p{color:var(--text2);font-size:.9rem;line-height:1.5;}
.modal-btns{display:flex;flex-direction:column;gap:10px;width:100%;}
.cam-icon{background:var(--accent-grad);border-radius:50%;width:72px;height:72px;display:flex;align-items:center;justify-content:center;color:#fff;}

/* Progress ring */
.progress-ring-wrap{position:relative;width:64px;height:64px;}
.progress-ring{width:64px;height:64px;transform:rotate(-90deg);}
.progress-pct{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;font-size:.75rem;font-weight:700;color:var(--accent2);}

/* ═══════════════════ TOAST ═══════════════════ */
.toast-container{position:fixed;bottom:28px;left:50%;transform:translateX(-50%);display:flex;flex-direction:column;gap:8px;z-index:600;pointer-events:none;}
.toast{background:var(--bg3);border:1px solid var(--border);border-radius:999px;padding:10px 20px;font-size:.85rem;color:var(--text);box-shadow:var(--shadow);animation:toastIn .3s ease;white-space:nowrap;}
.toast.success{border-color:rgba(0,212,255,.4);color:var(--accent2);}
.toast.error{border-color:rgba(220,80,80,.4);color:#ff7070;}
@keyframes toastIn{from{opacity:0;transform:translateY(12px);}to{opacity:1;transform:translateY(0);}}