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

/* ═══════════════════════════════════════════════════════════════
   DESIGN SYSTEM ?" DocOptimizer Premium Teal & Orange
   ═══════════════════════════════════════════════════════════════ */
@import url("https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;700&display=swap");

:root {
  --font-display: "DM Sans", system-ui, -apple-system, sans-serif;
  --font: "DM Sans", system-ui, -apple-system, sans-serif;
  --font-mono: "JetBrains Mono", "SF Mono", ui-monospace, Consolas, monospace;

  /* Premium Soft & Clean Palette */
  --bg: #F8FAFC;
  --bg2: #F1F5F9;
  --surface: rgba(255, 255, 255, 0.9);
  --surface-solid: #ffffff;
  --surface2: rgba(255, 255, 255, 0.7);
  --text: #0F172A;
  --text2: #334155;
  --text3: #475569;
  --text4: #94a3b8;
  --border: #E2E8F0;
  --border2: rgba(226, 232, 240, 0.8);
  --grid-line: rgba(15, 23, 42, 0.03);

  --ind: #3B82F6; --ind2: #2563EB; --ind3: #1D4ED8; --ind-l: rgba(59, 130, 246, 0.08); --ind-glow: rgba(59, 130, 246, 0.2);
  --vio: #6366F1; --vio-l: rgba(99, 102, 241, 0.08);
  --em: #10B981; --em-l: rgba(16, 185, 129, 0.08);
  --am: #F59E0B; --am-l: rgba(245, 158, 11, 0.08);
  --rose: #EF4444; --rose-l: rgba(239, 68, 68, 0.08);
  --cyan: #0EA5E9;

  --shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.04);
  --shadow: 0 8px 24px rgba(15, 23, 42, 0.06);
  --shadow-lg: 0 16px 48px rgba(15, 23, 42, 0.08);
  --radius: 16px;
  --radius-sm: 10px;
  --transition: all 0.3s cubic-bezier(0.2, 0.8, 0.2, 1);
}

[data-theme="dark"] {
  --bg: #10131A;
  --bg2: #151A23;
  --surface: rgba(24, 29, 39, 0.94);
  --surface-solid: #181D27;
  --surface2: rgba(32, 39, 51, 0.86);
  --text: #EDF2F7;
  --text2: #CBD5E1;
  --text3: #A4AFBD;
  --text4: #7B8797;
  --border: #303A49;
  --border2: rgba(71, 85, 105, 0.72);
  --grid-line: rgba(255, 255, 255, 0.035);
  --shadow-lg: 0 20px 48px rgba(0, 0, 0, 0.5);
}

/* ═══════════ BASE ═══════════ */
html{scroll-behavior:smooth}
body{font-family:var(--font);background:var(--bg);min-height:100vh;font-size:14.5px;color:var(--text);transition:background .5s ease,color .5s ease;overflow-x:hidden;overflow-y:visible;overscroll-behavior-y:auto;touch-action:pan-y pinch-zoom;-webkit-overflow-scrolling:touch;position:relative;letter-spacing:-.005em}

/* ═══════════ ANIMATED MESH GRADIENT BACKGROUND ═══════════ */



button{cursor:pointer;border:none;font-family:var(--font)}
input[type=range]{width:100%;accent-color:var(--ind);cursor:pointer;height:6px}
input[type=text],input[type=number],input[type=email],input[type=password],input[type=tel],textarea,select{font-family:var(--font);padding:13px 18px;border:1.5px solid var(--border2);border-radius:var(--r3);background:var(--surface-solid);color:var(--text);transition:var(--transition);font-size:14px;width:100%}
input:focus,select:focus{outline:none;border-color:var(--ind);box-shadow:0 0 0 4px var(--ind-glow)}
::selection{background:var(--ind);color:#fff}
button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,[tabindex]:focus-visible{
  outline:2px solid var(--ind);outline-offset:2px;border-radius:4px;
}
@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
}

/* ═══════════ ANIMATIONS ═══════════ */
@keyframes spin{to{transform:rotate(360deg)}}
@keyframes slideUp{from{transform:translateY(28px);opacity:0}to{transform:none;opacity:1}}
@keyframes scaleIn{from{transform:scale(.94);opacity:0}to{transform:scale(1);opacity:1}}
@keyframes shimmer{0%{background-position:-200% 0}100%{background-position:200% 0}}
@keyframes gradientFlow{0%{background-position:0% 50%}50%{background-position:100% 50%}100%{background-position:0% 50%}}
@keyframes toastIn{from{transform:translateX(28px) scale(.95);opacity:0}to{transform:translateX(0) scale(1);opacity:1}}
@keyframes toastOut{from{transform:translateX(0) scale(1);opacity:1}to{transform:translateX(28px) scale(.95);opacity:0}}
@keyframes checkmark{from{stroke-dashoffset:50}to{stroke-dashoffset:0}}
@keyframes meshShift{0%{filter:hue-rotate(0deg)}100%{filter:hue-rotate(25deg)}}
@keyframes pulseGlow{0%,100%{box-shadow:0 0 20px var(--ind-glow)}50%{box-shadow:0 0 40px var(--ind-glow),0 0 60px rgba(99,102,241,.12)}}
@keyframes borderGlow{0%{border-color:rgba(99,102,241,.2)}50%{border-color:rgba(99,102,241,.5)}100%{border-color:rgba(99,102,241,.2)}}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-8px)}}
@keyframes fadeIn{from{opacity:0}to{opacity:1}}
@keyframes slideDown{from{transform:translateY(-10px);opacity:0}to{transform:none;opacity:1}}
@keyframes progressTimer{from{width:100%}to{width:0%}}
@keyframes ripple{0%{transform:scale(0);opacity:.5}100%{transform:scale(4);opacity:0}}

.slide-up{animation:slideUp .5s cubic-bezier(.16,1,.3,1) both}
.scale-in{animation:scaleIn .5s cubic-bezier(.16,1,.3,1) both}
.fade-in{animation:fadeIn .4s ease both}

/* ═══════════ AUTH SCREEN ?" PREMIUM SPLIT ═══════════ */
.auth-overlay{position:fixed;inset:0;z-index:9999;display:none;transition:opacity .3s}
.auth-overlay.show{display:flex}

.auth-container{display:flex;width:100%;height:100%}

/* Left branding panel */
.auth-brand{flex:1;background:linear-gradient(135deg, #042F2E 0%, #115E59 40%, #0D9488 70%, #134E4A 100%);display:flex;flex-direction:column;align-items:center;justify-content:center;padding:60px;position:relative;overflow:hidden}
.auth-brand::before{content:'';position:absolute;inset:0;background:
  radial-gradient(circle at 20% 30%, rgba(20, 184, 166, 0.3) 0%, transparent 40%),
  radial-gradient(circle at 80% 70%, rgba(6,182,212,.25) 0%, transparent 40%),
  radial-gradient(circle at 50% 50%, rgba(124,58,237,.2) 0%, transparent 50%);
  animation:meshShift 15s ease-in-out infinite alternate}
.auth-brand::after{content:'';position:absolute;inset:0;background-image:url("data:image/svg+xml;base64,PHN2ZyB4bWxucz0naHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmcnIHdpZHRoPSc0MCcgaGVpZ2h0PSc0MCc+PGcgc3Ryb2tlPSdyZ2JhKDI1NSwgMjU1LCAyNTUsIDAuMSknIHN0cm9rZS13aWR0aD0nMSc+PHBhdGggZD0nTTAgNDBINDAnIC8+PHBhdGggZD0nTTAgMFY0MCcgLz48L2c+PC9zdmc+"); opacity:.6;animation:gradientFlow 4s ease infinite;background-size:200% auto}
.h-inner{max-width:1400px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;position:relative}
.h-left{display:flex;align-items:center;gap:16px}
.h-logo{width:44px;height:44px;border-radius:13px;background:linear-gradient(135deg,var(--ind) 0%,var(--vio) 100%);color:#fff;display:flex;align-items:center;justify-content:center;font-size:20px;font-family:var(--font-display);box-shadow:0 4px 16px var(--ind-glow),inset 0 0 0 1px rgba(255,255,255,.18);transition:var(--transition)}
.h-logo:hover{transform:rotate(-8deg) scale(1.06)}
.h-title{color:var(--text);font-size:18px;font-family:var(--font-display);font-weight:700;letter-spacing:-.4px}
.h-sub{color:var(--text3);font-size:10.5px;font-family:var(--font-mono);letter-spacing:.5px;margin-top:2px;text-transform:uppercase}
.h-right{display:flex;align-items:center;gap:12px}

.user-badge{display:flex;align-items:center;gap:10px;background:var(--surface);border:1px solid var(--border);border-radius:100px;padding:4px 16px 4px 4px;color:var(--text);font-size:13px;font-weight:600;transition:var(--transition);box-shadow:var(--shadow-sm)}
.user-badge:hover{background:var(--surface-solid);box-shadow:var(--shadow)}
.user-avatar{width:32px;height:32px;border-radius:50%;object-fit:cover;background:linear-gradient(135deg,var(--ind),var(--vio));display:flex;align-items:center;justify-content:center;font-size:13px;font-family:var(--font-display);color:#fff;font-weight:700}
.admin-badge{background:linear-gradient(135deg,rgba(217,119,6,.15),rgba(245,158,11,.15));color:var(--am);padding:3px 9px;border-radius:6px;font-size:9.5px;font-family:var(--font-mono);font-weight:700;letter-spacing:1.2px;border:1px solid rgba(217,119,6,.2);margin-left:2px}
.h-btn{background:var(--surface);border:1px solid var(--border);color:var(--text2);border-radius:11px;padding:9px 15px;font-size:12.5px;font-weight:600;transition:var(--transition);display:flex;align-items:center;gap:7px}
.h-btn:hover{background:var(--surface-solid);color:var(--text);transform:translateY(-1px);box-shadow:var(--shadow-sm)}

/* ═══════════ THEME TOGGLE ═══════════ */
.theme-toggle {
  background: var(--bg2);
  border: 1px solid var(--border);
  width: 44px;
  height: 44px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  transition: var(--transition);
}
.theme-toggle:hover {
  transform: scale(1.1);
  box-shadow: var(--shadow-sm);
}
.theme-toggle::after {
  content: '☀️';
}
[data-theme="dark"] .theme-toggle::after {
  content: '🌙';
}
.theme-toggle::after{content:'☀';position:absolute;left:3px;top:2px;width:19px;height:19px;border-radius:50%;background:var(--surface-solid);box-shadow:0 2px 4px rgba(0,0,0,.12);transition:var(--transition);display:flex;align-items:center;justify-content:center;font-size:10px}
[data-theme="dark"] .theme-toggle::after{content:'☾';left:calc(100% - 22px);background:var(--text2)}

/* ═══════════ ADMIN PANEL ═══════════ */
.admin-panel{position:fixed;right:-440px;top:0;width:440px;max-width:92vw;height:100vh;background:var(--surface-solid);box-shadow:-12px 0 60px rgba(0,0,0,.18);z-index:1000;transition:right .4s cubic-bezier(.16,1,.3,1);overflow-y:auto;padding:30px;border-left:1px solid var(--border)}
.admin-panel.show{right:0}
.admin-overlay{position:fixed;inset:0;background:rgba(5,7,12,.5);backdrop-filter:blur(4px);z-index:999;display:none;opacity:0;transition:opacity .3s}
.admin-overlay.show{display:block;opacity:1}
.admin-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:28px;padding-bottom:16px;border-bottom:1px solid var(--border)}
.admin-header h2{font-size:17px;font-family:var(--font-display);font-weight:700;color:var(--text);letter-spacing:-.2px}
.admin-close{background:var(--bg2);border:none;width:32px;height:32px;border-radius:10px;font-size:14px;color:var(--text3);cursor:pointer;display:flex;align-items:center;justify-content:center;transition:var(--transition)}
.admin-close:hover{background:var(--rose-l);color:var(--rose)}
.stat-box{background:var(--ind-l);border:1px solid rgba(99,102,241,.12);border-radius:var(--r);padding:22px;margin-bottom:14px;transition:var(--transition);position:relative;overflow:hidden}
.stat-box::before{content:'';position:absolute;top:0;left:0;width:3px;height:100%;background:linear-gradient(180deg,var(--ind),var(--vio))}
.stat-box:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
.stat-label{font-size:10.5px;color:var(--text3);font-family:var(--font-mono);font-weight:600;text-transform:uppercase;letter-spacing:1.5px}
.stat-value{font-size:34px;font-family:var(--font-mono);font-weight:700;color:var(--ind2);margin-top:6px;letter-spacing:-.5px}
.log-item{font-size:11.5px;font-family:var(--font-mono);padding:13px;background:var(--bg);border-radius:11px;margin-bottom:9px;border-left:3px solid var(--ind2);color:var(--text2);transition:var(--transition)}
.log-item:hover{background:var(--ind-l)}

/* ═══════════ TABS BAR ═══════════ */
.tabs-wrap{margin-top:28px;margin-bottom:22px}
nav.tabs-inner{max-width:1400px;margin:0 auto;display:flex;gap:8px;overflow-x:auto;padding:0 16px;scrollbar-width:none}
nav.tabs-inner::-webkit-scrollbar{display:none}
.tab-btn{display:flex;align-items:center;gap:8px;padding:11px 20px;font-size:13px;font-family:var(--font-display);font-weight:600;border:1px solid var(--border);border-radius:100px;color:var(--text3);background:var(--surface);transition:var(--transition);cursor:pointer;white-space:nowrap;box-shadow:var(--shadow-sm);position:relative;overflow:hidden}
.tab-btn::before{content:'';position:absolute;inset:0;background:linear-gradient(135deg,var(--ind),var(--vio));opacity:0;transition:opacity .3s ease;border-radius:100px}
.tab-btn:hover{color:var(--text);border-color:var(--border2);transform:translateY(-1px)}
.tab-btn.active{background:var(--text);color:var(--bg);border-color:var(--text);box-shadow:0 6px 20px rgba(0,0,0,.18)}
.tab-btn.active::before{opacity:0}
[data-theme="dark"] .tab-btn.active{background:linear-gradient(135deg,var(--ind),var(--ind2));color:#fff;border-color:transparent;box-shadow:0 6px 24px var(--ind-glow)}

/* ═══════════ MAIN & CARDS ═══════════ */
main{max-width:1400px;margin:0 auto;padding:0 16px 60px}
.tab-panel{display:none}
.tab-panel.active{display:block;animation:slideUp .4s cubic-bezier(.16,1,.3,1) both}

.card {
  background: var(--surface);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px;
  box-shadow: var(--shadow);
  position: relative;
  transition: var(--transition);
  overflow: hidden;
}
[data-theme="dark"] .card{border-color:rgba(255,255,255,0.06)}
.card:hover{box-shadow:var(--shadow-lg);border-color:rgba(99,102,241,.12)}
/* Viewfinder corner marks */
.card::before,.card::after{content:'';position:absolute;width:14px;height:14px;border-color:var(--ind);opacity:.25;pointer-events:none;transition:opacity .3s ease}
.card::before{top:10px;left:10px;border-top:2px solid;border-left:2px solid;border-radius:3px 0 0 0}
.card::after{bottom:10px;right:10px;border-bottom:2px solid;border-right:2px solid;border-radius:0 0 3px 0}
.card:hover::before,.card:hover::after{opacity:.6}
.card-title{font-size:18px;font-family:var(--font-display);font-weight:700;color:var(--text);display:flex;align-items:center;gap:9px;letter-spacing:-.3px}
.card-desc{font-size:13.5px;color:var(--text3);margin-top:6px;margin-bottom:26px;line-height:1.6;font-weight:450}

/* ═══════════ DROP ZONE ═══════════ */
.drop-zone{border:2px dashed var(--border2);border-radius:var(--r);padding:52px 24px;text-align:center;cursor:pointer;transition:var(--transition);background:var(--surface2);position:relative;overflow:hidden}
.drop-zone::after{content:'';position:absolute;inset:0;background:linear-gradient(115deg,transparent 42%,var(--ind-l) 50%,transparent 58%);transform:translateX(-130%);transition:transform .7s cubic-bezier(.4,0,.2,1)}
.drop-zone:hover::after,.drop-zone.over::after{transform:translateX(130%)}
.drop-zone:hover,.drop-zone.over{border-color:var(--ind);background:var(--ind-l);transform:scale(1.003)}
.drop-icon{width:64px;height:64px;border-radius:16px;background:var(--surface-solid);border:1px solid var(--border);box-shadow:var(--shadow-sm);display:flex;align-items:center;justify-content:center;margin:0 auto 16px;transition:var(--transition);font-size:28px;position:relative;z-index:1}
.drop-zone:hover .drop-icon{transform:translateY(-4px) scale(1.04);box-shadow:var(--shadow);border-color:var(--ind);animation:float 2s ease-in-out infinite}
.drop-lbl{font-size:16px;font-family:var(--font-display);font-weight:600;color:var(--text);letter-spacing:-.2px;position:relative;z-index:1}
.drop-sub{font-size:12px;color:var(--text4);margin-top:7px;font-weight:500;font-family:var(--font-mono);position:relative;z-index:1}

/* ═══════════ FILE PILL ═══════════ */
.file-pill{display:flex;align-items:center;gap:13px;border-radius:14px;border:1.5px solid;padding:13px 18px;margin-top:18px;transition:var(--transition);animation:scaleIn .3s cubic-bezier(.16,1,.3,1) both;background:var(--surface-solid)}
.pill-ext{font-size:11px;font-family:var(--font-mono);font-weight:700;padding:5px 9px;border-radius:7px;background:rgba(255,255,255,.8);letter-spacing:1px}
[data-theme="dark"] .pill-ext{background:rgba(255,255,255,.1)}
.pill-name{font-size:14px;font-weight:600;flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.pill-size{font-size:12px;font-family:var(--font-mono);opacity:.7;flex-shrink:0;font-weight:600}
.pill-rm{background:var(--bg2);border:none;cursor:pointer;color:var(--text3);font-size:15px;transition:var(--transition);width:30px;height:30px;border-radius:9px;display:flex;align-items:center;justify-content:center}
.pill-rm:hover{background:var(--rose-l);color:var(--rose)}

.c-pdf{background:var(--rose-l);color:#e11d48;border-color:rgba(225,29,72,.25)}
.c-docx{background:rgba(59,130,246,.08);color:#2563eb;border-color:rgba(59,130,246,.25)}
.c-png{background:var(--em-l);color:#059669;border-color:rgba(5,150,105,.25)}
.c-jpg,.c-jpeg{background:var(--am-l);color:#d97706;border-color:rgba(217,119,6,.25)}
.c-xlsx,.c-csv{background:var(--em-l);color:#059669;border-color:rgba(5,150,105,.25)}
.c-txt{background:var(--bg2);color:var(--text2);border-color:var(--border2)}
.c-pptx{background:rgba(234,88,12,.08);color:#ea580c;border-color:rgba(234,88,12,.25)}
.c-webp{background:var(--cyan-l);color:#0891b2;border-color:rgba(6,182,212,.25)}

/* ═══════════ BUTTONS ═══════════ */
.btn{font-family:var(--font-display);padding:14px 24px;border-radius:13px;border:none;font-weight:600;font-size:14px;cursor:pointer;transition:var(--transition);display:inline-flex;align-items:center;justify-content:center;gap:9px;position:relative;overflow:hidden;letter-spacing:.1px}
.btn::after{content:'';position:absolute;inset:0;background:linear-gradient(rgba(255,255,255,.15),transparent);opacity:0;transition:opacity .2s}
.btn:hover::after{opacity:1}
.btn:active{transform:scale(.97)}
.btn-primary{background:linear-gradient(135deg,var(--ind) 0%,var(--ind2) 50%,var(--vio) 100%);background-size:200% auto;color:#fff;box-shadow:0 4px 20px var(--ind-glow);animation:gradientFlow 3s ease infinite}
.btn-primary:hover{box-shadow:0 8px 28px var(--ind-glow);transform:translateY(-2px)}
.btn-primary:disabled{opacity:.5;cursor:not-allowed;transform:none;animation:none}
.btn-secondary{background:var(--surface-solid);color:var(--text);border:1px solid var(--border2)}
.btn-secondary:hover{background:var(--bg2);transform:translateY(-2px)}

/* ═══════════ PROGRESS ═══════════ */
.progress-wrap{margin-top:22px;display:none}
.progress-wrap.show{display:block;animation:slideUp .3s ease both}
.progress-bar{width:100%;height:8px;background:var(--border);border-radius:5px;overflow:hidden;margin-bottom:11px}
.progress-fill{height:100%;background:linear-gradient(90deg,var(--ind),var(--vio),var(--cyan),var(--ind));background-size:300% 100%;animation:shimmer 2s ease infinite;width:0%;transition:width .4s cubic-bezier(.4,0,.2,1);border-radius:5px}
.progress-text{font-size:12px;font-family:var(--font-mono);color:var(--text3);display:flex;justify-content:space-between;font-weight:600;letter-spacing:.2px}

/* ═══════════ TOAST NOTIFICATIONS ═══════════ */
.toast-container{position:fixed;top:96px;right:22px;z-index:2000;display:flex;flex-direction:column;gap:11px;pointer-events:none}
.toast{pointer-events:all;padding:15px 22px;border-radius:14px;font-size:13.5px;font-weight:600;display:flex;align-items:center;gap:11px;box-shadow:var(--shadow-lg);animation:toastIn .35s cubic-bezier(.16,1,.3,1) both;min-width:300px;max-width:420px;backdrop-filter:blur(14px);border:1px solid;position:relative;overflow:hidden}
.toast.removing{animation:toastOut .3s ease both}
.toast-success{background:rgba(5,150,105,.92);border-color:rgba(5,150,105,.3);color:#fff}
.toast-error{background:rgba(225,29,72,.92);border-color:rgba(225,29,72,.3);color:#fff}
.toast-info{background:rgba(79,70,229,.92);border-color:rgba(20, 184, 166, 0.3);color:#fff}
.toast-timer{position:absolute;bottom:0;left:0;height:3px;background:rgba(255,255,255,.3);border-radius:0 0 14px 14px}

/* ═══════════ GRID & CONTROLS ═══════════ */
.grid-2{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:14px;margin-bottom:18px}
.grid-4{display:grid;grid-template-columns:repeat(auto-fit,minmax(120px,1fr));gap:11px;margin-bottom:18px}

.control-label{font-size:11px;font-family:var(--font-mono);font-weight:600;color:var(--text3);text-transform:uppercase;letter-spacing:1.3px;margin-bottom:11px;display:block}
.control-button{padding:11px 17px;font-size:13px;font-weight:600;background:var(--surface-solid);border:1.5px solid var(--border2);border-radius:11px;cursor:pointer;transition:var(--transition);color:var(--text2)}
.control-button:hover{border-color:var(--ind);color:var(--ind);transform:translateY(-1px);box-shadow:var(--shadow-sm)}
.control-button.active{background:linear-gradient(135deg,var(--ind),var(--ind2));color:#fff;border-color:transparent;box-shadow:0 4px 14px var(--ind-glow)}

.editor-controls{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:18px;background:var(--surface2);padding:22px;border-radius:var(--r);border:1px solid var(--border)}
#image-canvas-container{background:var(--surface-solid);border-radius:var(--r);padding:22px;margin-bottom:22px;min-height:300px;border:1px solid var(--border);display:flex;justify-content:center}

/* ═══════════ HISTORY TABLE ═══════════ */
.history-table{width:100%;border-collapse:separate;border-spacing:0;font-size:12.5px}
.history-table th{background:var(--surface2);color:var(--text3);font-weight:600;font-family:var(--font-mono);text-transform:uppercase;font-size:10px;letter-spacing:1.2px;padding:13px 16px;text-align:left;border-bottom:1px solid var(--border)}
.history-table td{padding:13px 16px;border-bottom:1px solid var(--border);color:var(--text2);font-weight:450;font-family:var(--font-mono)}
.history-table tr:hover td{background:var(--ind-l)}
.badge{padding:4px 9px;border-radius:7px;font-size:10px;font-family:var(--font-mono);font-weight:700;letter-spacing:.6px}
.badge-success{background:var(--em-l);color:var(--em)}
.badge-error{background:var(--rose-l);color:var(--rose)}

/* ═══════════ SUCCESS ANIMATION ═══════════ */
.success-check{width:68px;height:68px;margin:0 auto 18px}
.success-check svg{width:100%;height:100%}
.success-check circle{fill:var(--em);opacity:.1}
.success-check path{stroke:var(--em);stroke-width:3;stroke-linecap:round;stroke-linejoin:round;fill:none;stroke-dasharray:50;stroke-dashoffset:50;animation:checkmark .6s cubic-bezier(.16,1,.3,1) .2s forwards}

/* ═══════════ FOOTER ═══════════ */
footer{background:var(--surface);backdrop-filter:blur(16px);border-top:1px solid var(--border);padding:32px 24px;margin-top:40px}
.footer-inner{max-width:1400px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:16px}
.footer-brand{display:flex;align-items:center;gap:12px}
.footer-logo{width:32px;height:32px;border-radius:9px;background:linear-gradient(135deg,var(--ind),var(--vio));display:flex;align-items:center;justify-content:center;color:#fff;font-size:14px;font-family:var(--font-display)}
.footer-text{font-size:12px;color:var(--text4);font-family:var(--font-mono)}
.footer-links{display:flex;gap:20px}
.footer-links a{color:var(--text3);font-size:12px;text-decoration:none;font-weight:500;transition:color .2s}
.footer-links a:hover{color:var(--ind)}

/* ═══════════ RESPONSIVE ═══════════ */
@media (max-width:768px){
  header .h-inner{flex-wrap:wrap;gap:12px}
  .h-right{width:100%;justify-content:flex-end}
  .user-badge span{display:none}
  .admin-badge{display:none!important}
  .card{padding:22px}
  .editor-controls{grid-template-columns:1fr}
  .footer-inner{flex-direction:column;text-align:center}
  .grid-2{grid-template-columns:1fr}
}

/* ═══════════ DASHBOARD TOOLS ═══════════ */
.dashboard-section { margin-bottom: 16px; }
.section-title { font-size: 20px; font-family: var(--font-display); font-weight: 700; color: var(--text); margin-bottom: 16px; padding-bottom: 10px; border-bottom: 1px solid var(--border); letter-spacing:-.2px; }


/* Estilos del Acordeón Premium */
.accordion-controls {
  max-width: 1400px;
  margin: 15px auto;
  padding: 0 16px;
  display: flex;
  gap: 10px;
}

.accordion-item {
  border: 1px solid var(--border);
  border-radius: var(--r);
  background: var(--surface);
  backdrop-filter: blur(16px);
  margin-bottom: 16px;
  overflow: hidden;
  transition: var(--transition);
}

.accordion-item:hover {
  border-color: rgba(99,102,241, 0.25);
  box-shadow: var(--shadow-sm), 0 0 20px rgba(99,102,241, 0.05);
}

.accordion-header {
  width: 100%;
  background: transparent;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 24px;
  text-align: left;
  cursor: pointer;
  border: none;
  outline: none;
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 700;
  color: var(--text);
  transition: var(--transition);
}

.accordion-header:focus-visible {
  box-shadow: inset 0 0 0 2px var(--ind);
}

.accordion-title {
  display: flex;
  align-items: center;
  gap: 12px;
}

.accordion-icon {
  font-size: 12px;
  color: var(--text3);
  transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Panel Colapsable Animado */
.accordion-panel {
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.3s ease;
  border-top: 1px solid transparent;
}

.accordion-item.active .accordion-panel {
  opacity: 1;
  border-top: 1px solid var(--border);
}

.accordion-item.active .accordion-icon {
  transform: rotate(-180deg);
  color: var(--ind);
}

.accordion-panel .tools-grid {
  padding: 24px;
}

.tool-card { background: rgba(255, 255, 255, 0.4); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); border: 1px solid rgba(255,255,255,0.6); border-radius: 16px; padding: 20px; text-decoration: none; display: flex; flex-direction: column; gap: 12px; transition: var(--transition); cursor: pointer; position: relative; overflow: hidden; box-shadow: var(--shadow-sm); }
[data-theme="dark"] .tool-card { background: rgba(19, 78, 74, 0.3); border: 1px solid rgba(94, 234, 212, 0.15); }
.tool-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: var(--ind); }
.tool-card::before { content: ''; position: absolute; inset: 0; background: linear-gradient(135deg, var(--ind-l) 0%, transparent 100%); opacity: 0; transition: opacity 0.3s; pointer-events: none; }
.tool-card:hover::before { opacity: 1; }
.tool-icon { width: 42px; height: 42px; border-radius: 12px; background: var(--surface2); border: 1px solid var(--border2); display: flex; align-items: center; justify-content: center; font-size: 20px; color: var(--ind); transition: var(--transition); }
.tool-card:hover .tool-icon { background: var(--ind-glow); color: var(--ind2); transform: scale(1.05) rotate(-5deg); }
.tool-title { font-size: 15px; font-family: var(--font-display); font-weight: 600; color: var(--text); letter-spacing: -0.2px; }
.tool-desc { font-size: 12.5px; color: var(--text3); line-height: 1.5; font-weight: 450; flex: 1; }
    /* WebRTC Scanner Modal */
    #scanner-modal { display:none; position:fixed; top:0; left:0; width:100%; height:100%; background:rgba(0,0,0,0.95); z-index:9999; flex-direction:column; align-items:center; justify-content:center; padding: 20px; box-sizing: border-box; }
    #scanner-video { width:100%; max-width:600px; max-height: 75vh; object-fit: cover; border-radius:12px; background:#000; box-shadow:0 10px 30px rgba(0,0,0,0.5); border: 2px solid var(--border); }
    #scanner-canvas { display:none; }
    .scanner-controls { margin-top:24px; display:flex; gap:15px; width: 100%; max-width: 600px; justify-content: center; flex-wrap: wrap; }
  /* --- UI/UX Pro Max Login Split Screen --- */
body:has(.auth-container[style*="flex-direction: row"]) {
  margin: 0;
  overflow: hidden;
  height: 100vh;
}

.auth-container[style*="flex-direction: row"] {
  display: flex;
  width: 100vw;
  height: 100vh;
  margin: 0;
  border-radius: 0;
  background: transparent;
}

.auth-container[style*="flex-direction: row"] .auth-brand {
  flex: 1;
  border-radius: 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: flex-start;
  padding: 5rem;
  background: linear-gradient(135deg, var(--ind) 0%, var(--vio) 40%, var(--cyan) 70%, var(--bg2) 100%);
  position: relative;
  overflow: hidden;
}

/* Add premium iridescent/glass effect overlay */
.auth-container[style*="flex-direction: row"] .auth-brand::after {
  content: '';
  position: absolute;
  top: -50%; left: -50%; width: 200%; height: 200%;
  background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 60%);
  animation: rotateGlow 15s linear infinite;
  pointer-events: none;
}

@keyframes rotateGlow {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

.auth-container[style*="flex-direction: row"] .auth-brand h1 {
  font-size: 3.5rem;
  margin-bottom: 1.5rem;
  z-index: 2;
  text-shadow: 0 4px 20px rgba(0,0,0,0.2);
}

.auth-container[style*="flex-direction: row"] .auth-brand p {
  font-size: 1.25rem;
  max-width: 450px;
  margin-bottom: 3rem;
  z-index: 2;
}

.auth-container[style*="flex-direction: row"] .auth-features {
  grid-template-columns: 1fr;
  gap: 1.5rem;
  z-index: 2;
}

.auth-container[style*="flex-direction: row"] .auth-feature {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  padding: 1rem 1.5rem;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(255, 255, 255, 0.2);
  font-size: 1.1rem;
}

.auth-container[style*="flex-direction: row"] .auth-form-panel {
  flex: 0.8;
  min-width: 500px;
  background: var(--surface);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border-radius: 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 4rem;
  box-shadow: -10px 0 40px rgba(0,0,0,0.1);
}

@media (max-width: 900px) {
  .auth-container[style*="flex-direction: row"] {
    flex-direction: column !important;
    overflow-y: auto;
  }
  .auth-container[style*="flex-direction: row"] .auth-brand {
    padding: 3rem 2rem;
    flex: none;
    min-height: 50vh;
  }
  .auth-container[style*="flex-direction: row"] .auth-form-panel {
    flex: none;
    min-width: 100%;
    padding: 3rem 2rem;
  }
}

/* ═══════════════════════════════════════════════════════════════
   PDF EDITOR STYLES
   ═══════════════════════════════════════════════════════════════ */

.pdf-editor-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
  justify-content: space-between;
  background: var(--surface-solid);
  border: 1px solid var(--border);
  padding: 12px 20px;
  border-radius: var(--radius-sm);
  margin-bottom: 20px;
  box-shadow: var(--shadow-sm);
}

.pdf-editor-toolbar .toolbar-group {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.toolbar-btn {
  min-height: 44px;
  padding: 8px 16px;
  background: var(--bg2);
  border: 1px solid var(--border);
  color: var(--text2);
  border-radius: var(--radius-sm);
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: var(--transition);
  cursor: pointer;
  outline: none;
}

.toolbar-btn:hover {
  background: var(--ind-l);
  color: var(--text);
  border-color: var(--ind);
}

.toolbar-btn.active {
  background: var(--ind);
  color: #ffffff !important;
  border-color: var(--ind2);
  box-shadow: var(--shadow-sm);
}

.toolbar-btn.btn-nav {
  width: 44px;
  height: 44px;
  justify-content: center;
  padding: 0;
}

.toolbar-btn.btn-danger {
  background: var(--rose-l);
  color: var(--rose);
  border-color: rgba(220, 38, 38, 0.2);
}

.toolbar-btn.btn-danger:hover {
  background: var(--rose);
  color: #ffffff !important;
  border-color: var(--rose);
}

.pdf-editor-toolbar .page-indicator {
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 700;
  color: var(--text2);
  padding: 0 10px;
}

/* Workspace Layout */
.pdf-editor-workspace {
  display: grid;
  grid-template-columns: 180px 1fr 240px;
  gap: 20px;
  min-height: 600px;
  max-height: 800px;
  height: calc(100vh - 250px);
}

@media (max-width: 1024px) {
  .pdf-editor-workspace {
    grid-template-columns: 140px 1fr;
    grid-template-rows: auto auto;
    height: auto;
    max-height: none;
  }
  .pdf-editor-sidebar-right {
    grid-column: 1 / -1;
  }
}

@media (max-width: 640px) {
  .pdf-editor-workspace {
    grid-template-columns: 1fr;
    grid-template-rows: auto auto auto;
  }
  .pdf-editor-sidebar-left {
    max-height: 200px;
  }
}

.pdf-editor-sidebar-left,
.pdf-editor-sidebar-right {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  overflow-y: auto;
  box-shadow: var(--shadow-sm);
}

.pdf-editor-sidebar-left h3,
.pdf-editor-sidebar-right h3 {
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 8px;
  border-bottom: 1px solid var(--border);
  padding-bottom: 8px;
}

/* Left sidebar thumbnails */
.pdf-thumbnails-container {
  display: flex;
  flex-direction: column;
  gap: 12px;
  align-items: center;
}

@media (max-width: 640px) {
  .pdf-thumbnails-container {
    flex-direction: row;
    overflow-x: auto;
    padding-bottom: 10px;
    width: 100%;
  }
}

.pdf-thumbnail {
  width: 120px;
  background: var(--surface-solid);
  border: 2px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 6px;
  cursor: pointer;
  position: relative;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
}

.pdf-thumbnail:hover {
  border-color: var(--ind);
  transform: translateY(-2px);
}

.pdf-thumbnail.active {
  border-color: var(--ind2);
  background: var(--ind-l);
  box-shadow: var(--shadow-sm);
}

.pdf-thumbnail canvas {
  width: 100% !important;
  height: auto !important;
  border-radius: 4px;
  box-shadow: 0 2px 4px rgba(0,0,0,0.1);
  background: white;
}

.pdf-thumbnail span {
  font-size: 11px;
  font-family: var(--font-mono);
  font-weight: bold;
  color: var(--text2);
}

/* Central Viewport and Layers */
.pdf-editor-viewport-container {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: auto;
  display: flex;
  justify-content: center;
  align-items: flex-start;
  padding: 20px;
  box-shadow: inset 0 2px 8px rgba(0,0,0,0.05);
  position: relative;
}

.pdf-canvas-viewport {
  position: relative;
  box-shadow: var(--shadow);
  background: #ffffff;
  border-radius: 4px;
  overflow: hidden;
}

.pdf-layer {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

/* Enable pointer events selectively */
#pdf-render-canvas {
  z-index: 1;
  display: block;
}

.fabric-canvas-container-wrapper {
  z-index: 2;
}

.fabric-canvas-container-wrapper canvas,
.fabric-canvas-container-wrapper .canvas-container {
  pointer-events: auto !important;
}

.pdf-forms-overlay {
  z-index: 3;
  pointer-events: none;
}

.pdf-forms-overlay input {
  position: absolute;
  pointer-events: auto;
  border: 1px dashed var(--ind);
  background: rgba(13, 148, 136, 0.08);
  font-family: var(--font);
  font-size: 12px;
  color: #000000;
  padding: 2px 4px;
  border-radius: 2px;
  box-sizing: border-box;
  transition: background 0.2s, border-color 0.2s;
}

.pdf-forms-overlay input:focus {
  border: 1px solid var(--am);
  background: rgba(234, 88, 12, 0.08);
  box-shadow: 0 0 4px var(--am-l);
  outline: none;
}

/* Color palettes & Properties */
.properties-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.color-palette {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
}

.color-swatch {
  width: 100%;
  height: 38px;
  border-radius: var(--radius-sm);
  border: 2px solid transparent;
  cursor: pointer;
  transition: var(--transition);
  position: relative;
}

.color-swatch:hover {
  transform: scale(1.1);
}

.color-swatch.active {
  border-color: var(--text);
  box-shadow: var(--shadow-sm);
}

.color-swatch.active::after {
  content: '✓';
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  font-weight: bold;
  font-size: 14px;
  text-shadow: 0 1px 2px rgba(0,0,0,0.5);
}

.color-swatch[data-color="#ffffff"].active::after {
  color: #000000;
  text-shadow: none;
}

/* Signature drawing modal */
.pdf-modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 10000;
  background: rgba(5, 7, 12, 0.6);
  backdrop-filter: blur(5px);
  display: flex;
  align-items: center;
  justify-content: center;
  animation: fadeIn 0.3s ease;
}

.pdf-modal-content {
  background: var(--surface-solid);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  width: 460px;
  max-width: 90vw;
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  animation: scaleIn 0.3s cubic-bezier(0.2, 0.8, 0.2, 1);
}

.pdf-modal-header {
  padding: 20px;
  border-bottom: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.pdf-modal-header h3 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 18px;
  color: var(--text);
}

.pdf-modal-close {
  background: none;
  border: none;
  font-size: 18px;
  color: var(--text3);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

.pdf-modal-close:hover {
  color: var(--rose);
}

.pdf-modal-body {
  padding: 20px;
}

.signature-canvas-wrap {
  border: 2px dashed var(--border);
  background: var(--bg2);
  border-radius: var(--radius-sm);
  overflow: hidden;
  height: 200px;
  position: relative;
  touch-action: none;
}

#signature-draw-canvas {
  width: 100%;
  height: 100%;
  display: block;
  cursor: crosshair;
  background: transparent;
}

.pdf-modal-footer {
  padding: 20px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: flex-end;
  gap: 12px;
  background: var(--surface2);
}

/* Inline SVG Icon Styling */
.svg-icon {
  width: 18px;
  height: 18px;
  stroke: currentColor;
  fill: none;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
  display: inline-block;
  vertical-align: middle;
}

/* Ensure pdf export button meets 44x44px touch target standard */
#btn-pdf-export {
  min-height: 44px !important;
  padding: 12px 24px !important;
}

/* ==============================================================
   RESPONSIVIDAD MNVIL (MOBILE FIRST & RESPONSIVE FIXES)
   ============================================================== */

@media (max-width: 1024px) {
  .tools-grid { grid-template-columns: repeat(2, 1fr) !important; }
}

@media (max-width: 768px) {
  .tools-grid { grid-template-columns: 1fr !important; }
  
  .auth-brand { padding: 30px !important; }
  .auth-brand-logo { width: 220px !important; }
  .auth-brand h1 { font-size: 28px !important; }
  .auth-container { flex-direction: column !important; }
  .auth-panel { padding: 30px 20px !important; }
  
  .tabs-wrap {
    overflow-x: auto !important;
    padding-bottom: 10px !important;
    -webkit-overflow-scrolling: touch;
    white-space: nowrap;
  }
  
  .tabs-inner {
    display: inline-flex !important;
    flex-wrap: nowrap !important;
    width: max-content !important;
  }
  
  .tab-btn {
    padding: 10px 16px !important;
    font-size: 13px !important;
  }
  
  .filters-container {
    grid-template-columns: 1fr !important;
  }
  
  header, .navbar { flex-direction: column; gap: 15px; }
  
  #main-content { padding: 15px !important; }
  
  .card { padding: 15px !important; }
}

@media (max-width: 480px) {
  h1, .card-title { font-size: 22px !important; }
  
  .action-buttons {
    flex-direction: column !important;
    width: 100% !important;
  }
  
  .action-buttons button, .btn {
    width: 100% !important;
  }
  
  /* Arreglo para la tabla de Programación UAS en móvil */
  .table-responsive {
    border: none !important;
  }
}


/* Header & Navbar Responsive */
@media (max-width: 768px) {
  header { padding: 10px 15px; }
  .h-inner { flex-direction: column; align-items: stretch; gap: 10px; }
  .h-left { width: 100%; justify-content: space-between; }
  .h-right { width: 100%; justify-content: flex-end; margin-top: 5px; flex-wrap: wrap; }
  .h-logo { width: 120px; }
  nav.tabs-inner { padding: 0 5px; margin: 0; flex-wrap: nowrap; overflow-x: auto; -webkit-overflow-scrolling: touch; }
  .tab-btn { padding: 8px 16px; font-size: 13px; }
}

/* Tools Grid Responsive (Desktop: 3 cols, Tablet: 2 cols, Mobile: 1 col) */

@media (max-width: 1024px) {
  
}
@media (max-width: 768px) {
  .dashboard-section .tools-grid,
  .dashboard-section .tools-grid-top { grid-template-columns: 1fr !important; }
  .tool-card { padding: 15px; }
}

/* General Modals, Auth and Drop Zones */
@media (max-width: 600px) {
  .auth-form-panel { padding: 20px 15px !important; min-width: 100% !important; width: 100%; box-sizing: border-box; }
  .auth-modal { width: 100%; box-sizing: border-box; }
  .card { padding: 15px; margin: 0; border-radius: 12px; }
  .drop-zone { padding: 30px 15px; }
}

/* PDF Editor Workspace Responsive */
@media (max-width: 768px) {
  .pdf-editor-workspace {
    display: flex !important;
    flex-direction: column;
    height: auto !important;
  }
  .pdf-editor-sidebar-left, .pdf-editor-sidebar-right {
    width: 100%;
    max-height: none;
    overflow-y: visible;
  }
  .pdf-thumbnails-container {
    flex-direction: row;
    overflow-x: auto;
  }
  .pdf-editor-toolbar { flex-direction: column; align-items: stretch; gap: 10px; }
  .pdf-editor-toolbar .toolbar-group { justify-content: center; flex-wrap: wrap; }
  .pdf-canvas-viewport { width: 100%; overflow-x: auto; }
}

/* Final mobile priority: protects the app shell from older responsive rules. */
@media (max-width:768px) {
  body { padding-bottom:calc(82px + env(safe-area-inset-bottom)); }
  .classic-app-header { padding:env(safe-area-inset-top) 12px 0!important; }
  .classic-app-header .h-inner { min-height:58px;flex-direction:row!important;align-items:center!important;gap:7px!important; }
  .classic-app-header .h-left { width:auto!important;min-width:0;flex:1!important;flex-direction:row!important;align-items:center!important;justify-content:flex-start!important;gap:6px!important;text-align:left!important; }
  .classic-brand span:last-child,.classic-nav { display:none; }
  .classic-brand .h-logo { width:38px!important;height:38px!important;margin:0!important; }
  .classic-app-header .h-right { width:auto!important;flex:none;justify-content:flex-end!important;margin:0!important;gap:5px!important;flex-wrap:nowrap!important; }
  .classic-app-header .user-badge { width:40px;height:40px;padding:3px;overflow:hidden;border-radius:11px; }
  .classic-app-header #user-email,.classic-app-header #admin-badge,.classic-app-header #btn-theme { display:none!important; }
  .classic-app-header #btn-admin,.classic-app-header #btn-logout { width:40px;min-width:40px;padding:0;overflow:hidden;justify-content:center; }
  .auth-overlay { align-items:flex-start;overflow:auto;background:#f4f8ff; }
  .auth-container { display:block!important;width:100%;height:auto;min-height:100dvh; }
  .auth-brand { display:none!important; }
  .auth-form-panel { display:flex!important;align-items:center;justify-content:center;min-width:0!important;width:100%!important;min-height:100dvh;padding:calc(28px + env(safe-area-inset-top)) 18px calc(30px + env(safe-area-inset-bottom))!important;background:linear-gradient(180deg,#edf5ff,#fff 32%); }
  .auth-modal { width:100%!important;max-width:430px;padding:22px 18px;border:1px solid #dce7f7;border-radius:20px;background:#fff;box-shadow:0 18px 50px rgba(22,75,145,.13); }
}

/* Unified OptimixPDF navigation and mobile shell */
:root, [data-theme="dark"] {
  color-scheme: light;
  --bg:#f4f8ff;--bg2:#edf5ff;--surface:rgba(255,255,255,.94);--surface-solid:#fff;--surface2:#f8fbff;
  --text:#102342;--text2:#334967;--text3:#62738d;--text4:#8998ad;--border:#dce7f7;--border2:#c7d9ef;
  --ind:#1261d5;--ind2:#0b55c2;--ind3:#08479f;--vio:#3b82f6;--ind-l:rgba(18,97,213,.08);--ind-glow:rgba(18,97,213,.19);
}
[data-theme="dark"] { --bg:#0d1a2d;--bg2:#14233a;--surface:rgba(20,35,58,.95);--surface-solid:#14233a;--surface2:#192b46;--text:#edf5ff;--text2:#d3e2f6;--text3:#a9bdd8;--text4:#7e94b2;--border:#2b4261;--border2:#3b577c; }
body { background:radial-gradient(circle at 8% 3%,#e6f1ff 0,transparent 28%),var(--bg);padding-bottom:0; }
.classic-app-header { position:sticky;z-index:900;top:0;padding:0 24px;background:rgba(255,255,255,.94);border-bottom:1px solid var(--border);box-shadow:0 5px 22px rgba(42,85,145,.055);backdrop-filter:blur(16px); }
.classic-app-header .h-inner { min-height:72px;max-width:1180px;gap:24px; }
.classic-app-header .h-left { flex:none; }
.classic-brand { display:flex;align-items:center;gap:9px;color:var(--text);font-size:17px;font-weight:700;text-decoration:none;letter-spacing:-.3px; }
.classic-brand .h-logo { width:34px;height:34px;margin:0;border-radius:10px;background:var(--ind);box-shadow:0 7px 16px var(--ind-glow);font-size:17px; }
.classic-brand b { color:var(--text); }
.classic-brand span:last-child { color:var(--ind); }
.classic-nav { display:flex;align-items:center;gap:3px;margin-right:auto; }
.classic-nav a { min-height:40px;display:flex;align-items:center;padding:0 13px;border-radius:10px;color:var(--text3);font-size:13px;font-weight:600;text-decoration:none; }
.classic-nav a:hover { color:var(--ind);background:#edf5ff; }
.classic-app-header .h-right { gap:7px; }
.classic-app-header .user-badge { padding-right:10px;border-radius:11px;box-shadow:none; }
.classic-app-header .theme-toggle { display:none; }
.classic-app-header .h-btn { min-height:40px;border-radius:10px;background:#fff; }
.classic-app-header .classic-back { margin-left:8px!important;color:var(--ind)!important;border:1px solid var(--border)!important;background:#edf5ff!important;font-size:12px!important; }
.classic-mobile-tabbar { display:none; }
.tabs-wrap { position:sticky;z-index:100;top:72px;padding:10px 0;margin:0;background:rgba(244,248,255,.94);backdrop-filter:blur(12px); }
.tab-btn { min-height:44px;border-radius:12px;background:#fff;box-shadow:none; }
.tab-btn.active { color:#fff;background:var(--ind);border-color:var(--ind);box-shadow:0 7px 18px var(--ind-glow); }

@media (max-width:768px) {
  body { padding-bottom:calc(82px + env(safe-area-inset-bottom)); }
  .classic-app-header { padding:env(safe-area-inset-top) 12px 0!important; }
  .classic-app-header .h-inner { min-height:58px;flex-direction:row!important;align-items:center!important;gap:7px!important; }
  .classic-app-header .h-left { width:auto!important;min-width:0;flex:1!important;flex-direction:row!important;justify-content:flex-start!important;gap:6px!important; }
  .classic-brand span:last-child { display:none; }
  .classic-brand .h-logo { width:38px!important;height:38px!important;margin:0!important; }
  .classic-nav { display:none; }
  .classic-app-header .classic-back { overflow:hidden;max-width:145px;margin-left:3px!important;padding:0 9px;white-space:nowrap;text-overflow:ellipsis; }
  .classic-app-header .h-right { width:auto!important;flex:none;justify-content:flex-end!important;margin:0!important;gap:5px!important;flex-wrap:nowrap!important; }
  .classic-app-header .user-badge { width:40px;height:40px;padding:3px;overflow:hidden;border-radius:11px; }
  .classic-app-header .user-avatar { flex:none;width:32px;height:32px; }
  .classic-app-header #user-email,.classic-app-header #admin-badge,.classic-app-header #btn-theme { display:none!important; }
  .classic-app-header #btn-admin,.classic-app-header #btn-logout { width:40px;min-width:40px;padding:0;overflow:hidden;font-size:0;justify-content:center; }
  .classic-app-header #btn-admin { font-size:16px; }
  .classic-app-header #btn-logout::after { content:'↪';font-size:18px;color:var(--text3); }
  .classic-mobile-tabbar { position:fixed;z-index:950;right:10px;bottom:max(8px,env(safe-area-inset-bottom));left:10px;min-height:64px;display:grid;grid-template-columns:repeat(3,1fr);gap:3px;padding:6px;border:1px solid #d0def1;border-radius:18px;background:rgba(255,255,255,.97);box-shadow:0 12px 36px rgba(20,64,124,.2);backdrop-filter:blur(18px); }
  .classic-mobile-tabbar a { min-width:0;min-height:52px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;border-radius:13px;color:var(--text3);font-size:19px;text-decoration:none; }
  .classic-mobile-tabbar a span { font-size:9px;font-weight:700; }
  .tabs-wrap { top:calc(58px + env(safe-area-inset-top));padding:7px 0; }
  nav.tabs-inner { padding:4px 10px!important;gap:7px!important; }
  .tab-btn { min-height:42px;padding:8px 14px!important; }
  .wrap,.dashboard-section,.main-content { width:100%!important;max-width:100%!important;padding-left:12px!important;padding-right:12px!important; }
  .tool-body,.tool-content,.card { min-width:0;max-width:100%; }
  .modal,.admin-panel { max-width:calc(100vw - 18px)!important; }
}

/* Sign-in screen: compact, readable and touch friendly */
.auth-overlay { overflow:auto;background:#f4f8ff; }
.auth-container { min-height:100dvh; }
.auth-brand { flex:1;padding:clamp(36px,6vw,82px);color:#fff;background:linear-gradient(145deg,#0756c7,#1675e8); }
.auth-brand::before { background:radial-gradient(circle at 20% 25%,rgba(255,255,255,.18),transparent 38%),radial-gradient(circle at 85% 80%,rgba(255,255,255,.12),transparent 34%); }
.auth-brand-content { position:relative;z-index:2;width:min(500px,100%); }
.auth-brand-logo,.auth-modal-logo { width:54px;height:54px;display:grid;place-items:center;margin-bottom:22px;border-radius:16px;color:#1261d5;background:#fff;font-size:22px;font-weight:800;box-shadow:0 12px 28px rgba(0,30,80,.18); }
.auth-brand h1 { margin:0 0 14px;color:#fff;font-size:clamp(35px,4vw,56px);letter-spacing:-.04em; }
.auth-brand h1 span { color:#dcecff; }
.auth-brand p { max-width:520px;margin:0 0 32px;color:#e5f0ff;font-size:17px;line-height:1.55; }
.auth-features { display:grid;gap:10px; }
.auth-feature { display:flex;align-items:center;gap:12px;min-height:52px;padding:10px 13px;border:1px solid rgba(255,255,255,.18);border-radius:13px;background:rgba(255,255,255,.1);font-size:13px; }
.auth-feature-icon { width:32px;height:32px;display:grid;place-items:center;border-radius:9px;background:rgba(255,255,255,.14); }
.auth-form-panel { flex:0 0 min(560px,50vw);display:flex;align-items:center;justify-content:center;padding:40px;background:#fff; }
.auth-modal { width:min(420px,100%); }
.auth-modal-logo { width:45px;height:45px;margin:0 0 18px;color:#fff;background:#1261d5; }
.auth-title { color:#102342;font-size:30px;font-weight:700;letter-spacing:-.035em; }
.auth-sub { margin:6px 0 21px;color:#62738d;font-size:13px; }
.auth-tabs { display:grid;grid-template-columns:repeat(3,1fr);gap:4px;margin-bottom:18px;padding:4px;border-radius:12px;background:#edf5ff; }
.auth-tab { min-height:42px;padding:0 8px;border-radius:9px;color:#62738d;background:transparent;font-size:12px;font-weight:700; }
.auth-tab.active { color:#fff;background:#1261d5;box-shadow:0 6px 14px rgba(18,97,213,.19); }
.auth-form { display:none; }
.auth-form.active { display:block; }
.auth-input-group { margin-bottom:10px; }
.auth-input { min-height:48px!important;padding:0 14px!important;border:1px solid #c7d9ef!important;border-radius:11px!important;background:#fafdff!important; }
.auth-input-error { min-height:0;color:#c23737;font-size:10px; }
.auth-form .btn { min-height:48px;border-radius:11px;background:#1261d5!important;box-shadow:0 8px 18px rgba(18,97,213,.16); }
.auth-divider { display:flex;align-items:center;gap:10px;margin:20px 0 14px;color:#8998ad;font-size:11px; }
.auth-divider::before,.auth-divider::after { content:'';height:1px;flex:1;background:#dce7f7; }
#google-signin { min-height:44px;display:grid;place-items:center; }
.auth-footer { margin-top:18px;color:#8998ad;font-size:10px;text-align:center; }

@media (max-width:700px) {
  .auth-overlay { align-items:flex-start; }
  .auth-container { display:block;height:auto;min-height:100dvh; }
  .auth-brand { display:none; }
  .auth-form-panel { min-width:0!important;width:100%;min-height:100dvh;padding:calc(28px + env(safe-area-inset-top)) 18px calc(30px + env(safe-area-inset-bottom))!important;background:linear-gradient(180deg,#edf5ff,#fff 32%); }
  .auth-modal { width:100%;max-width:430px;padding:22px 18px;border:1px solid #dce7f7;border-radius:20px;background:#fff;box-shadow:0 18px 50px rgba(22,75,145,.13); }
  .auth-modal-logo { margin:0 auto 14px; }
  .auth-title,.auth-sub { text-align:center; }
  .auth-title { font-size:26px; }
  .auth-tabs { position:sticky;top:8px;z-index:2; }
  .auth-form > div[style*="display:flex"] { gap:7px!important; }
}

/* --- GLOBAL RESPONSIVE FIXES --- */
html, body {
  overflow-x: hidden;
  max-width: 100vw;
}

/* Header & Navbar Responsive */
@media (max-width: 768px) {
  header:not(.classic-app-header) { padding: 10px !important; }
  header:not(.classic-app-header) .h-inner { flex-direction: column !important; align-items: center !important; gap: 12px !important; }
  header:not(.classic-app-header) .h-left { width: 100% !important; flex-direction: column !important; align-items: center !important; text-align: center !important; gap: 8px !important; }
  header:not(.classic-app-header) .h-logo { width: 60px !important; margin: 0 auto !important; }
  .h-title { font-size: 16px !important; text-align: center !important; }
  .h-sub { font-size: 9px !important; text-align: center !important; line-height: 1.3 !important; max-width: 100% !important; white-space: normal !important; }
  header:not(.classic-app-header) .h-right { width: 100% !important; justify-content: center !important; flex-wrap: wrap !important; gap: 10px !important; }
  
  /* Fix squished tabs */
  nav.tabs-inner { 
    padding: 10px 5px !important; 
    margin: 0 !important; 
    flex-wrap: nowrap !important; 
    overflow-x: auto !important; 
    -webkit-overflow-scrolling: touch !important; 
    justify-content: flex-start !important;
    gap: 12px !important;
  }
  .tab-btn { 
    padding: 10px 20px !important; 
    font-size: 13.5px !important; 
    flex-shrink: 0 !important; /* CRITICAL: prevents squishing */
    white-space: nowrap !important;
  }
}

/* Tools Grid Responsive (Desktop: 3 cols, Tablet: 2 cols, Mobile: 1 col) */
.dashboard-section .tools-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
@media (max-width: 1024px) {
  .dashboard-section .tools-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  .dashboard-section .tools-grid,
  .dashboard-section .tools-grid-top { grid-template-columns: 1fr !important; }
  .tool-card { padding: 15px; }
}

/* General Modals, Auth and Drop Zones */
@media (max-width: 600px) {
  .auth-form-panel { padding: 20px 15px !important; min-width: 100% !important; width: 100%; box-sizing: border-box; }
  .auth-modal { width: 100%; box-sizing: border-box; }
  .card { padding: 15px; margin: 0; border-radius: 12px; }
  .drop-zone { padding: 30px 15px; }
}

/* PDF Editor Workspace Responsive */
@media (max-width: 768px) {
  .pdf-editor-workspace {
    display: flex !important;
    flex-direction: column;
    height: auto !important;
  }
  .pdf-editor-sidebar-left, .pdf-editor-sidebar-right {
    width: 100%;
    max-height: none;
    overflow-y: visible;
  }
  .pdf-thumbnails-container {
    flex-direction: row;
    overflow-x: auto;
  }
  .pdf-editor-toolbar { flex-direction: column; align-items: stretch; gap: 10px; }
  .pdf-editor-toolbar .toolbar-group { justify-content: center; flex-wrap: wrap; }
  .pdf-canvas-viewport { width: 100%; overflow-x: auto; }
}