/* ─── DESIGN TOKENS ──────────────────────────────── */
:root {
  --bg:          #0f172a;
  --bg-card:     #1e293b;
  --bg-input:    #0d1526;
  --bg3:         #162032;
  --bg4:         #243347;
  --border:      #334155;
  --border2:     #475569;
  --border-focus:#10b981;
  --text:        #e2e8f0;
  --text-muted:  #94a3b8;
  --text-light:  #cbd5e1;
  --text-lt:     #f8fafc;
  --green:       #10b981;
  --green-dk:    #065f46;
  --green-lt:    #064e3b;
  --green-btn:   #10b981;
  --green-btn-hover: #059669;
  --red:         #ef4444;
  --amber:       #f59e0b;
  --blue:        #3b82f6;
  --shadow:      0 1px 3px rgba(0,0,0,0.3);
  --shadow-md:   0 4px 6px rgba(0,0,0,0.3);
  --radius:      6px;
  --font:        'Plus Jakarta Sans', sans-serif;
  --mono:        'JetBrains Mono', monospace;
  --header-h:    60px;
  --tab-h:       56px;
  --logo-tava: #ffffff;
  --logo-slash: rgba(255,255,255,0.5);
}
[data-theme="light"] {
  --bg:          #f8fafc;
  --bg-card:     #ffffff;
  --bg-input:    #f1f5f9;
  --bg3:         #e2e8f0;
  --bg4:         #cbd5e1;
  --border:      #e2e8f0;
  --border2:     #cbd5e1;
  --text:        #0f172a;
  --text-muted:  #475569;
  --text-light:  #64748b;
  --text-lt:     #0f172a;
  --green:       #059669;
  --green-dk:    #047857;
  --green-lt:    #d1fae5;
  --green-btn:   #059669;
  --green-btn-hover: #047857;
  --shadow:      0 1px 3px rgba(0,0,0,0.1);
  --shadow-md:   0 4px 6px rgba(0,0,0,0.08);
  --logo-tava: #0f172a;
  --logo-slash: rgba(0,0,0,0.3);
}

html{overscroll-behavior-y:auto}
body{overscroll-behavior-y:auto}

/* ─── RESET ──────────────────────────────────────── */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html,body{height:100%;overscroll-behavior-x:none}
body{font-family:var(--mono);background:var(--bg);color:var(--text);font-size:14px;line-height:1.5;-webkit-font-smoothing:antialiased}
input,select,textarea,button{font-family:inherit;font-size:inherit}
button{cursor:pointer;border:none;background:none}

/* ─── APP LAYOUT ─────────────────────────────────── */
#app{display:flex;flex-direction:column;height:100dvh;overflow:hidden}
header{height:var(--header-h);background:var(--bg-card);border-bottom:1px solid var(--border2);display:flex;align-items:center;justify-content:space-between;padding:0 20px;flex-shrink:0;z-index:100;box-shadow:0 2px 12px rgba(0,0,0,0.4)}
.main{flex:1;overflow-y:auto;-webkit-overflow-scrolling:touch;min-height:0}
footer{flex-shrink:0;background:var(--bg-card);border-top:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;padding:0 20px;height:44px}

/* ─── HEADER ─────────────────────────────────────── */
.logo{font-family:var(--font);font-size:1.1rem;font-weight:800;letter-spacing:0.01em;display:flex;align-items:center;gap:4px}
.logo-tava{color:#ffffff;font-weight:800}
.logo-slash{color:rgba(255,255,255,0.5);font-weight:700}
.logo-act{color:var(--green);font-weight:800}
.header-actions{display:flex;align-items:center;gap:8px}

/* ─── STATUS BAR ─────────────────────────────────── */
.status-bar{display:flex;align-items:center;justify-content:space-between;padding:5px 20px;font-family:var(--font);font-size:0.58rem;font-weight:700;letter-spacing:0.12em;text-transform:uppercase;background:var(--bg-card);border-bottom:1px solid var(--border);color:var(--text-muted);flex-shrink:0}
.online-dot{width:7px;height:7px;border-radius:50%;background:var(--green);display:inline-block;margin-right:4px;box-shadow:0 0 5px rgba(16,185,129,0.4)}
.online-dot.offline{background:var(--amber);box-shadow:none}

/* ─── STATS CLOCK BAR ────────────────────────────── */
.stats-clock-bar{background:var(--bg-card);border-bottom:1px solid var(--border);flex-shrink:0}
.scb-stat{flex:1;text-align:center;padding:10px 8px;border-right:1px solid var(--border)}
.scb-val{font-family:var(--font);font-size:1.1rem;font-weight:800;color:var(--green);line-height:1;margin-bottom:3px}
.scb-lbl{font-family:var(--font);font-size:0.52rem;font-weight:700;letter-spacing:0.2em;text-transform:uppercase;color:var(--text-muted)}
.scb-clock{padding:10px 0 10px 20px;text-align:right;white-space:nowrap;flex-shrink:0}

/* ─── TAB BAR ────────────────────────────────────── */
.tab-bar{height:var(--tab-h);background:var(--bg-card);border-bottom:1px solid var(--border);display:flex;flex-shrink:0;overflow-x:auto;scrollbar-width:none}
.tab-bar::-webkit-scrollbar{display:none}
.tab{flex:1;min-width:80px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;font-family:var(--font);font-size:0.6rem;font-weight:700;letter-spacing:0.18em;text-transform:uppercase;color:var(--text-muted);border-bottom:2px solid transparent;transition:color .15s,border-color .15s;padding:0 8px;white-space:nowrap}
.tab.active{color:var(--green);border-bottom-color:var(--green)}
.tab svg{width:20px;height:20px;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}

/* ─── PAGES ──────────────────────────────────────── */
.page{display:none;padding:16px;max-width:640px;width:100%;margin-left:auto;margin-right:auto}
.page.active{display:block}

/* ─── COMPONENTS ─────────────────────────────────── */
.card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:16px;margin-bottom:12px;box-shadow:var(--shadow)}
.card-title{font-family:var(--font);font-size:0.6rem;font-weight:700;color:var(--text-muted);text-transform:uppercase;letter-spacing:0.28em;margin-bottom:12px;display:flex;align-items:center;gap:8px;padding-bottom:10px;border-bottom:1px solid var(--border)}
.card-title::before{content:'';width:2px;height:11px;background:var(--green);border-radius:1px;flex-shrink:0}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-bottom:10px}
.field-row.single{grid-template-columns:1fr}
.field-row.triple{grid-template-columns:1fr 1fr 1fr}
label{display:block;font-family:var(--font);font-size:0.6rem;font-weight:600;letter-spacing:0.18em;text-transform:uppercase;color:var(--text-muted);margin-bottom:4px}
input[type=text],input[type=date],input[type=time],input[type=password],input[type=email],select,textarea{
  width:100%;padding:7px 10px;background:var(--bg-input);border:1px solid var(--border);
  border-radius:var(--radius);color:var(--text);outline:none;transition:border-color .15s,box-shadow .15s,background .15s;
  -webkit-appearance:none;appearance:none;font-family:var(--mono);font-size:0.82rem;letter-spacing:0.04em
}
input:focus,select:focus,textarea:focus{border-color:var(--green-dk);background:var(--bg3);box-shadow:0 0 0 2px rgba(16,185,129,0.08)}
input.callsign-input{font-family:var(--mono);font-size:1.05rem;font-weight:700;text-transform:uppercase;letter-spacing:0.14em;color:var(--green)}
select{background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='8' height='5'%3E%3Cpath d='M0 0l4 5 4-5z' fill='%2394a3b8'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 9px center;padding-right:26px;cursor:pointer}
select option{background:var(--bg-input)}
textarea{min-height:80px;resize:vertical;line-height:1.4}

/* ─── BUTTONS ────────────────────────────────────── */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;font-family:var(--font);font-size:0.7rem;font-weight:700;letter-spacing:0.16em;text-transform:uppercase;padding:9px 16px;border-radius:var(--radius);transition:all .15s;white-space:nowrap;border:1px solid transparent}
.btn:active{transform:scale(.98)}
.btn-primary{background:var(--green-btn);color:#fff;border-color:var(--green-btn);font-size:0.8rem;letter-spacing:0.2em;padding:11px 20px}
.btn-primary:hover{background:var(--green-btn-hover);box-shadow:0 2px 12px rgba(16,185,129,0.2)}
.btn-secondary{background:transparent;color:var(--text-light);border:1px solid var(--border2)}
.btn-secondary:hover{color:var(--text);border-color:var(--border2);background:var(--bg-input)}
.btn-danger{color:var(--red);border:1px solid rgba(192,24,15,0.2);font-size:0.6rem;padding:4px 8px}
.btn-danger:hover{background:rgba(239,68,68,0.1);border-color:rgba(192,24,15,0.5)}
.btn-full{width:100%;margin-top:4px}
.btn-sm{padding:6px 12px;font-size:0.65rem}
.btn:disabled{opacity:.5;pointer-events:none}
.icon-btn{width:38px;height:38px;border-radius:var(--radius);display:flex;align-items:center;justify-content:center;color:var(--text-muted);transition:background .15s,color .15s;border:1px solid transparent}
.icon-btn:hover{background:var(--bg-input);color:var(--text);border-color:var(--border)}
.icon-btn svg{width:20px;height:20px;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}

/* ─── BADGES ─────────────────────────────────────── */
.badge{display:inline-flex;align-items:center;padding:3px 8px;border-radius:99px;font-family:var(--font);font-size:0.6rem;font-weight:700;letter-spacing:0.1em;text-transform:uppercase}
.badge-green{background:rgba(16,185,129,0.12);color:var(--green);border:1px solid var(--green-dk)}
.badge-amber{background:rgba(245,158,11,0.12);color:#f59e0b;border:1px solid rgba(245,158,11,0.3)}
.badge-red{background:rgba(239,68,68,0.1);color:var(--red);border:1px solid rgba(239,68,68,0.3)}
.badge-blue{background:rgba(59,130,246,0.1);color:var(--blue);border:1px solid rgba(59,130,246,0.3)}
.badge-gray{background:var(--bg-input);color:var(--text-muted);border:1px solid var(--border)}

/* ─── ALERTS ─────────────────────────────────────── */
.divider{height:1px;background:var(--border);margin:12px 0}
.alert{padding:10px 14px;border-radius:var(--radius);font-family:var(--font);font-size:0.72rem;font-weight:500;margin-bottom:12px;display:flex;align-items:center;gap:8px;letter-spacing:0.02em}
.alert-green{background:rgba(16,185,129,0.08);color:#34d399;border:1px solid var(--green-dk)}
.alert-amber{background:rgba(245,158,11,0.08);color:#f59e0b;border:1px solid rgba(245,158,11,0.3)}
.alert-red{background:rgba(239,68,68,0.08);color:var(--red);border:1px solid rgba(239,68,68,0.3)}
.alert svg{width:16px;height:16px;stroke:currentColor;fill:none;stroke-width:2;flex-shrink:0}
.spinner{width:18px;height:18px;border:2px solid currentColor;border-top-color:transparent;border-radius:50%;animation:spin .7s linear infinite;display:inline-block}
@keyframes spin{to{transform:rotate(360deg)}}

/* ─── QSO COUNTER ────────────────────────────────── */
.qso-counter{display:flex;align-items:center;justify-content:space-between;padding:12px 16px;background:var(--bg-card);border:1px solid var(--border);border-top:3px solid var(--green);border-radius:var(--radius);margin-bottom:12px}
.qso-count-num{font-family:var(--font);font-size:2rem;font-weight:800;color:var(--green);line-height:1}
.qso-count-label{font-family:var(--font);font-size:0.58rem;font-weight:700;letter-spacing:0.18em;text-transform:uppercase;color:var(--text-muted);margin-top:4px}
.qso-count-pota{font-family:var(--font);font-size:0.65rem;font-weight:700;letter-spacing:0.1em;text-transform:uppercase}
.qso-count-pota.met{color:var(--green)}
.qso-count-pota.unmet{color:var(--text-muted)}
.pota-banner{background:rgba(16,185,129,0.08);border:1px solid var(--green-dk);border-radius:var(--radius);padding:10px 16px;text-align:center;font-family:var(--font);font-weight:700;color:#34d399;font-size:0.76rem;letter-spacing:0.1em;margin-bottom:12px;display:none}
.pota-banner.show{display:block}

/* ─── QSO LIST ───────────────────────────────────── */
.qso-list{display:flex;flex-direction:column;gap:6px}
.qso-item{background:var(--bg-input);border:1px solid var(--border);border-radius:var(--radius);font-size:0.78rem;overflow:hidden}
.qso-call{font-family:var(--mono);font-weight:700;font-size:0.88rem;letter-spacing:0.08em;color:var(--green);min-width:80px}
.qso-meta{flex:1;color:var(--text-muted);display:flex;gap:6px;flex-wrap:wrap;align-items:center}
.qso-time{font-family:var(--mono);font-size:0.68rem;color:var(--text-muted);margin-left:auto}
.qso-delete{color:var(--text-muted);flex-shrink:0;padding:4px;border-radius:4px;transition:color .15s}
.qso-delete:hover{color:var(--red)}
.qso-delete svg{width:14px;height:14px;stroke:currentColor;fill:none;stroke-width:2}
.sync-dot{width:7px;height:7px;border-radius:50%;flex-shrink:0}
.sync-dot.synced{background:var(--green)}
.sync-dot.local{background:var(--amber)}

/* ─── LOOKUP RESULT ──────────────────────────────── */
.lookup-result{padding:8px 12px;background:var(--bg3);border:1px solid var(--border);border-radius:var(--radius);margin-top:4px;font-size:0.76rem;display:none;font-family:var(--mono)}
.lookup-result.show{display:block}
.lookup-result strong{color:var(--green);font-weight:700}
.lookup-result span{color:var(--text-muted)}

/* ─── AUTH SCREEN ────────────────────────────────── */
#auth-screen{display:flex;align-items:center;justify-content:center;min-height:100dvh;background:var(--bg);position:relative}
.auth-logo{font-family:var(--font);font-size:1.5rem;font-weight:800;letter-spacing:0.04em}
.auth-logo .logo-act{display:block;font-size:2rem;margin-top:4px}
.auth-tagline{color:var(--text-muted);font-family:var(--font);font-size:0.76rem;font-weight:600;letter-spacing:0.08em;max-width:280px;line-height:1.8;text-transform:uppercase}
.btn-google{display:flex;align-items:center;gap:10px;background:var(--bg-card);color:var(--text);border:1px solid var(--border2);border-radius:var(--radius);padding:12px 24px;font-family:var(--font);font-weight:700;font-size:0.76rem;letter-spacing:0.14em;text-transform:uppercase;box-shadow:var(--shadow);transition:all .15s}
.btn-google:hover{border-color:var(--border2);background:var(--bg3)}
.btn-google svg{width:20px;height:20px;flex-shrink:0}

/* ─── SETTINGS ───────────────────────────────────── */
.setting-row{display:flex;align-items:center;justify-content:space-between;padding:12px 0;border-bottom:1px solid var(--border)}
.setting-row:last-child{border-bottom:none}
.setting-label{font-family:var(--font);font-size:0.76rem;font-weight:600;color:var(--text)}
.setting-desc{font-family:var(--font);font-size:0.62rem;color:var(--text-muted);margin-top:2px;letter-spacing:0.02em}
.toggle{position:relative;width:44px;height:24px;flex-shrink:0}
.toggle input{opacity:0;width:0;height:0;position:absolute}
.toggle-track{position:absolute;inset:0;background:var(--border);border-radius:99px;transition:background .2s;cursor:pointer}
.toggle input:checked~.toggle-track{background:var(--green)}
.toggle-thumb{position:absolute;top:3px;left:3px;width:18px;height:18px;background:#fff;border-radius:50%;transition:transform .2s;pointer-events:none;box-shadow:0 1px 3px rgba(0,0,0,.3)}
.toggle input:checked~.toggle-track~.toggle-thumb{transform:translateX(20px)}

/* ─── CODE BLOCK ─────────────────────────────────── */
.code-block{background:var(--bg-input);border:1px solid var(--border);border-radius:var(--radius);padding:12px;font-family:var(--mono);font-size:0.76rem;color:var(--text);line-height:1.8;margin-top:8px}
.code-block strong{color:var(--green)}

/* ─── DRIVE STATUS ───────────────────────────────── */
.drive-status{display:flex;align-items:center;gap:8px;padding:10px 12px;border-radius:var(--radius);border:1px solid var(--border);background:var(--bg-input);font-size:0.76rem}
.drive-icon{width:28px;height:28px;flex-shrink:0}

/* ─── ACTIVATION SELECTOR ────────────────────────── */
.act-selector{display:flex;flex-direction:column;gap:8px;margin-bottom:12px}
.act-option{padding:12px 14px;border:1px solid var(--border);border-radius:var(--radius);cursor:pointer;transition:all .15s;font-family:var(--font);font-size:0.76rem}
.act-option.selected{border-color:var(--green);background:rgba(16,185,129,0.08)}
.act-option-title{font-weight:700;color:var(--text)}
.act-option-meta{font-size:0.65rem;color:var(--text-muted);margin-top:2px;font-family:var(--mono)}

/* ─── TOAST ──────────────────────────────────────── */
#toast{position:fixed;bottom:60px;right:20px;background:var(--bg3);border:1px solid var(--border2);color:var(--text);padding:10px 16px;border-radius:var(--radius);font-family:var(--mono);font-size:0.76rem;letter-spacing:0.04em;box-shadow:0 4px 20px rgba(0,0,0,0.3);opacity:0;transform:translateY(6px) scale(0.98);transition:opacity .2s,transform .2s;z-index:9999;pointer-events:none;white-space:nowrap}
#toast.show{opacity:1;transform:translateY(0) scale(1)}

/* ─── MODAL ──────────────────────────────────────── */
.modal-overlay{position:fixed;inset:0;background:rgba(0,0,0,.72);z-index:500;display:flex;align-items:flex-end;justify-content:center;opacity:0;pointer-events:none;transition:opacity .2s}
.modal-overlay.show{opacity:1;pointer-events:all}
.modal{background:var(--bg-card);border:1px solid var(--border);border-radius:16px 16px 0 0;padding:20px;width:100%;max-width:480px;max-height:80dvh;overflow-y:auto;transform:translateY(20px);transition:transform .2s}
.modal-overlay.show .modal{transform:translateY(0)}
.modal-title{font-family:var(--font);font-size:0.76rem;font-weight:700;letter-spacing:0.18em;text-transform:uppercase;color:var(--text-muted);margin-bottom:16px;display:flex;align-items:center;gap:8px;padding-bottom:10px;border-bottom:1px solid var(--border)}
.modal-title::before{content:'';width:2px;height:11px;background:var(--green);border-radius:1px;flex-shrink:0}
.modal-actions{display:flex;gap:8px;margin-top:16px}

/* ─── HISTORY ────────────────────────────────────── */
.hist-item{display:flex;align-items:center;gap:10px;padding:12px;background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);margin-bottom:8px}
.hist-ref{font-family:var(--mono);font-weight:700;font-size:0.82rem;letter-spacing:0.08em;color:var(--green)}
.hist-meta{flex:1;font-family:var(--font);font-size:0.65rem;color:var(--text-muted);letter-spacing:0.04em}
.hist-count{font-family:var(--font);font-size:1.25rem;font-weight:800;color:var(--green)}

/* ─── RESPONSIVE ─────────────────────────────────── */
@media(min-width:480px){
  .field-row{grid-template-columns:1fr 1fr}
  .page{padding:20px}
}