/* Knock — Main Stylesheet */
:root {
  --red: #FF3B00;
  --ember: #FF6B3D;
  --black: #0A0A0A;
  --dark: #111;
  --card: #161616;
  --card-hover: #1C1C1C;
  --white: #FFF;
  --warm: #F5F4F0;
  --gray: #888;
  --light-gray: #CCC;
  --mid-gray: #666;
  --border: rgba(255,255,255,0.06);
  --border-hover: rgba(255,255,255,0.12);
  --green: #25D366;
  --blue: #3B82F6;
  --font-d: 'Plus Jakarta Sans', sans-serif;
  --font-b: 'DM Sans', sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:var(--font-b);background:var(--black);color:var(--white);min-height:100vh;overflow-x:hidden}

body::after{content:'';position:fixed;top:-50%;left:-50%;width:200%;height:200%;background:url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.03'/%3E%3C/svg%3E");pointer-events:none;z-index:9999}

.app{max-width:600px;margin:0 auto;min-height:100vh;position:relative}

/* Nav */
.nav{padding:14px 20px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--border);position:sticky;top:0;z-index:50;background:rgba(10,10,10,0.92);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px)}
.nav-logo{font-family:var(--font-d);font-weight:800;font-size:24px;letter-spacing:-1px;color:var(--white);text-decoration:none}
.nav-logo span{color:var(--red)}
.nav-right{display:flex;align-items:center;gap:12px}
.nav-icon{position:relative;color:var(--gray);text-decoration:none;padding:6px;transition:color .2s}
.nav-icon:hover{color:var(--white)}
.badge{position:absolute;top:-2px;right:-4px;background:var(--red);color:var(--white);font-size:10px;font-weight:700;width:18px;height:18px;border-radius:50%;display:flex;align-items:center;justify-content:center}

/* Buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:14px 24px;border-radius:12px;font-size:14px;font-weight:600;text-decoration:none;border:none;cursor:pointer;font-family:var(--font-d);transition:all .25s ease;width:100%}
.btn-primary{background:var(--red);color:var(--white)}
.btn-primary:hover{background:var(--ember);transform:translateY(-1px);box-shadow:0 8px 24px rgba(255,59,0,.2)}
.btn-secondary{background:transparent;color:var(--white);border:1px solid var(--border-hover)}
.btn-secondary:hover{border-color:rgba(255,255,255,.25);background:rgba(255,255,255,.03)}
.btn-green{background:var(--green);color:var(--white)}
.btn-green:hover{background:#20BD5A}
.btn-sm{padding:10px 18px;font-size:13px;border-radius:10px;width:auto}
.btn-ghost{background:transparent;color:var(--gray);border:none;padding:8px}
.btn-ghost:hover{color:var(--white)}
.btn-danger{background:rgba(255,59,0,.08);color:var(--red);border:1px solid rgba(255,59,0,.15)}
.btn-block{width:100%}
.btn-row{display:flex;gap:10px}
.btn-row .btn{flex:1}

/* Screen */
.screen{padding:24px 20px 40px}
@keyframes fadeIn{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}
.screen{animation:fadeIn .35s ease}

/* Screen header */
.screen-header{display:flex;align-items:center;gap:12px;margin-bottom:24px;padding-bottom:16px;border-bottom:1px solid var(--border)}
.back-btn{width:40px;height:40px;border-radius:12px;border:1px solid var(--border);background:transparent;color:var(--white);font-size:18px;cursor:pointer;display:flex;align-items:center;justify-content:center;text-decoration:none;transition:all .2s}
.back-btn:hover{border-color:var(--border-hover);background:rgba(255,255,255,.03)}
.screen-title{font-family:var(--font-d);font-size:20px;font-weight:800;letter-spacing:-.5px}

/* Section */
.section-label{font-family:var(--font-d);font-size:11px;font-weight:700;letter-spacing:2px;text-transform:uppercase;color:var(--red);margin-bottom:12px}
.section-title{font-family:var(--font-d);font-size:24px;font-weight:800;line-height:1.2;letter-spacing:-.5px;margin-bottom:8px}
.section-sub{font-size:14px;color:var(--gray);line-height:1.6;margin-bottom:24px}

/* Cards */
.card{background:var(--card);border:1px solid var(--border);border-radius:16px;padding:20px;margin-bottom:12px;transition:all .2s}
.card:hover{border-color:var(--border-hover)}
.card-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px}
.card-title{font-family:var(--font-d);font-weight:700;font-size:16px}
.card-meta{font-size:12px;color:var(--gray)}

/* Forms */
.form-group{margin-bottom:16px}
.form-label{display:block;font-size:13px;font-weight:500;color:var(--light-gray);margin-bottom:6px}
.form-input,.form-select,.form-textarea{width:100%;padding:13px 16px;background:var(--card);border:1px solid var(--border);border-radius:12px;color:var(--white);font-size:14px;font-family:var(--font-b);outline:none;transition:border-color .2s}
.form-input:focus,.form-select:focus,.form-textarea:focus{border-color:var(--red)}
.form-input::placeholder,.form-textarea::placeholder{color:var(--mid-gray)}
.form-select{appearance:none;cursor:pointer;background-image:url("data:image/svg+xml,%3Csvg width='12' height='8' viewBox='0 0 12 8' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1.5L6 6.5L11 1.5' stroke='%23888' stroke-width='1.5' stroke-linecap='round'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 16px center}
.form-select option{background:var(--dark);color:var(--white)}
.form-textarea{resize:none;min-height:80px}
.form-hint{font-size:12px;color:var(--mid-gray);margin-top:4px}
.form-error{font-size:12px;color:var(--red);margin-top:4px}
.phone-row{display:flex;gap:8px}
.phone-code{width:100px;flex-shrink:0}

/* Alerts */
.alert{padding:14px 18px;border-radius:12px;font-size:14px;margin-bottom:20px;display:flex;align-items:center;gap:10px}
.alert-success{background:rgba(37,211,102,.08);border:1px solid rgba(37,211,102,.15);color:var(--green)}
.alert-error{background:rgba(255,59,0,.08);border:1px solid rgba(255,59,0,.15);color:var(--red)}
.alert-info{background:rgba(59,130,246,.08);border:1px solid rgba(59,130,246,.15);color:var(--blue)}

/* Tag list */
.tag-item{display:flex;align-items:center;gap:16px;padding:18px 20px;background:var(--card);border:1px solid var(--border);border-radius:16px;margin-bottom:10px;cursor:pointer;text-decoration:none;color:var(--white);transition:all .2s}
.tag-item:hover{border-color:rgba(255,59,0,.15);transform:translateY(-2px)}
.tag-icon{width:48px;height:48px;border-radius:12px;background:rgba(255,59,0,.08);display:flex;align-items:center;justify-content:center;font-size:22px;flex-shrink:0}
.tag-info{flex:1}
.tag-plate{font-family:var(--font-d);font-weight:700;font-size:16px;letter-spacing:.5px}
.tag-meta{font-size:12px;color:var(--gray);margin-top:2px}
.tag-arrow{color:var(--mid-gray);font-size:18px}
.tag-status{display:inline-block;font-size:10px;font-weight:600;padding:3px 8px;border-radius:4px;letter-spacing:.5px}
.tag-status.active{background:rgba(37,211,102,.1);color:var(--green)}
.tag-status.inactive{background:rgba(255,59,0,.1);color:var(--red)}

/* QR */
.qr-card{background:var(--card);border:1px solid var(--border);border-radius:20px;padding:32px 24px;text-align:center;position:relative;overflow:hidden;margin-bottom:20px}
.qr-card::before{content:'';position:absolute;top:0;left:0;right:0;height:3px;background:var(--red)}
#qr-code-container{display:flex;justify-content:center;margin:20px 0}
#qr-code-container canvas,#qr-code-container img{border-radius:12px}

/* Messages */
.msg-item{padding:16px 20px;background:var(--card);border:1px solid var(--border);border-radius:14px;margin-bottom:8px;transition:all .2s}
.msg-item.unread{border-left:3px solid var(--red)}
.msg-item:hover{border-color:var(--border-hover)}
.msg-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:6px}
.msg-sender{font-family:var(--font-d);font-weight:600;font-size:14px}
.msg-time{font-size:11px;color:var(--mid-gray)}
.msg-plate{font-size:12px;color:var(--ember);margin-bottom:6px}
.msg-body{font-size:14px;color:var(--light-gray);line-height:1.5}
.msg-actions{margin-top:10px;display:flex;gap:8px}

/* Stats grid */
.stats-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-bottom:24px}
.stat-card{background:var(--card);border:1px solid var(--border);border-radius:14px;padding:18px;text-align:center}
.stat-num{font-family:var(--font-d);font-weight:800;font-size:28px;color:var(--white)}
.stat-num span{color:var(--red)}
.stat-label{font-size:11px;color:var(--gray);margin-top:4px;letter-spacing:.3px}

/* Empty state */
.empty{text-align:center;padding:48px 20px}
.empty-icon{font-size:48px;margin-bottom:16px;opacity:.5}
.empty p{color:var(--gray);font-size:14px;margin-bottom:20px;line-height:1.6}

/* Contact page (scanner view) */
.contact-page{text-align:center;padding-top:32px}
.contact-logo{font-family:var(--font-d);font-weight:800;font-size:28px;margin-bottom:6px}
.contact-logo span{color:var(--red)}
.contact-sub{font-size:13px;color:var(--gray);margin-bottom:28px}
.contact-card{background:var(--card);border:1px solid var(--border);border-radius:20px;padding:24px 20px;text-align:left;margin-bottom:20px}
.contact-plate{font-family:var(--font-d);font-weight:800;font-size:28px;letter-spacing:2px;margin-bottom:4px}
.contact-label{font-size:11px;color:var(--mid-gray);letter-spacing:1.5px;text-transform:uppercase;font-weight:600;margin-bottom:6px}
.contact-divider{height:1px;background:var(--border);margin:16px 0}
.privacy-note{display:flex;align-items:center;gap:8px;justify-content:center;font-size:11px;color:var(--mid-gray);margin-top:20px;padding:12px;background:rgba(255,255,255,.02);border-radius:10px}

/* Tabs */
.tabs{display:flex;gap:4px;background:var(--card);border-radius:12px;padding:4px;margin-bottom:24px}
.tab{flex:1;padding:10px;text-align:center;border-radius:10px;font-size:13px;font-weight:600;color:var(--gray);cursor:pointer;transition:all .2s;text-decoration:none;font-family:var(--font-d)}
.tab.active{background:var(--red);color:var(--white)}
.tab:hover:not(.active){color:var(--white)}

/* Coming soon banner */
.coming-soon{background:linear-gradient(135deg,rgba(255,59,0,.06),rgba(255,107,61,.03));border:1px dashed rgba(255,59,0,.2);border-radius:16px;padding:32px;text-align:center;margin-bottom:24px}
.coming-soon h3{font-family:var(--font-d);font-size:18px;font-weight:700;margin-bottom:8px}
.coming-soon p{font-size:13px;color:var(--gray);line-height:1.6}

/* Footer */
.app-footer{text-align:center;padding:24px 20px;border-top:1px solid var(--border);font-size:12px;color:var(--mid-gray);margin-top:40px}

/* Toast */
.toast{position:fixed;bottom:24px;left:50%;transform:translateX(-50%) translateY(100px);background:var(--card);border:1px solid var(--border);border-radius:14px;padding:14px 24px;font-size:14px;font-weight:500;z-index:200;transition:transform .4s cubic-bezier(.34,1.56,.64,1);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);max-width:90%;text-align:center;box-shadow:0 8px 32px rgba(0,0,0,.3)}
.toast.show{transform:translateX(-50%) translateY(0)}
.toast.success{border-color:rgba(37,211,102,.3);color:var(--green)}
.toast.error{border-color:rgba(255,59,0,.3);color:var(--red)}
.toast.info{border-color:rgba(59,130,246,.3);color:var(--blue)}

/* Coming soon badge */
.badge-soon{display:inline-block;font-size:9px;font-weight:700;letter-spacing:1px;text-transform:uppercase;padding:3px 8px;border-radius:4px;background:rgba(255,59,0,.1);color:var(--ember);margin-left:8px;vertical-align:middle}

/* Feature card with coming soon */
.feature-locked{position:relative;cursor:pointer}
.feature-locked::after{content:'COMING SOON';position:absolute;top:12px;right:12px;font-size:8px;font-weight:700;letter-spacing:1px;background:rgba(255,59,0,.15);color:var(--ember);padding:3px 8px;border-radius:4px}

/* Auth page layout */
.auth-layout{display:grid;grid-template-columns:1fr;gap:0;min-height:calc(100vh - 60px)}
.auth-visual{display:none}
@media(min-width:768px){
  .auth-layout{grid-template-columns:1fr 1fr;gap:40px;align-items:center}
  .auth-visual{display:flex;align-items:center;justify-content:center;padding:40px}
}

/* Wider app for auth and landing pages */
.app.wide{max-width:900px}

/* Responsive */
@media(max-width:600px){
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .btn-row{flex-direction:column}
}