/* ═══════════════════════════════════════════════════════════
   Byron Hair Solution — Final Stylesheet (White/Black/Gold)
   ═══════════════════════════════════════════════════════════ */
:root {
  --bg:            #ffffff;
  --bg-card:       #ffffff;
  --bg-muted:      #ffffff;
  --border:        #000000;
  --text:          #000000;
  --text-muted:    #000000;
  --text-label:    #000000;
  --gold:          #d4a843;
  --gold-light:    rgba(212,168,67,.15);
  --gold-dark:     #b8912f;
  --green:         #22c55e;
  --red:           #ef4444;
  --blue:          #3b82f6;
  --radius:        0.7rem;
  --radius-lg:     0.75rem;
  --shadow:        0 4px 24px rgba(0,0,0,.5);
  --transition:    .18s ease;
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{font-size:15px;scroll-behavior:smooth}
body{background:#fff;color:#000;font-family:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;line-height:1.6;min-height:100vh;padding-bottom:env(safe-area-inset-bottom)}
a{color:var(--gold-dark);text-decoration:none}
a:hover{opacity:.75}
img{max-width:100%;display:block}
::-webkit-scrollbar{width:4px;height:4px}
::-webkit-scrollbar-track{background:#f5f5f5}
::-webkit-scrollbar-thumb{background:#bbb;border-radius:2px}

h1{font-size:1.3rem;font-weight:700;color:#000}
h2{font-size:1.1rem;font-weight:600;color:#000}
h3{font-size:1rem;font-weight:600;color:#000}
.text-muted{color:#444;font-size:.85rem}

.container{max-width:1200px;margin:0 auto;padding:0 1rem}

/* Header */
.app-header{position:sticky;top:0;z-index:100;background:#fff;border-bottom:2px solid #000;padding:.7rem 0;padding-top:calc(.7rem + env(safe-area-inset-top));box-shadow:0 2px 6px rgba(0,0,0,.1)}
.app-header .inner{display:flex;align-items:center;justify-content:space-between;gap:1rem}
.brand{display:flex;align-items:center;gap:.75rem}
.brand img{height:38px;width:auto}
.brand-text h1{font-size:.95rem;line-height:1.2}
.brand-text p{font-size:.7rem;color:#555}

.main-content{padding:1.25rem 0 3rem}

/* Card */
.card{background:#fff;border:1.5px solid #000;border-radius:var(--radius-lg);overflow:hidden}
.card-body{padding:1.25rem}
.card-header{padding:1rem 1.25rem;border-bottom:1.5px solid #000;display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:.5rem}

/* Stats */
.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(155px,1fr));gap:.75rem;margin-bottom:1.25rem}
.stat-card{padding:1rem 1.1rem}
.stat-card .inner{display:flex;align-items:center;gap:.8rem}
.stat-icon{width:40px;height:40px;border-radius:var(--radius);background:var(--gold-light);border:1.5px solid var(--gold);display:flex;align-items:center;justify-content:center;flex-shrink:0}
.stat-icon svg{width:18px;height:18px;stroke:var(--gold-dark)}
.stat-label{font-size:.72rem;color:#555;margin-bottom:.15rem;font-weight:600;text-transform:uppercase;letter-spacing:.03em}
.stat-value{font-size:1.35rem;font-weight:700;line-height:1;color:#000}

/* Tabs */
.tab-list{display:flex;gap:.1rem;border-bottom:2px solid #000;margin-bottom:1.25rem;overflow-x:auto;scrollbar-width:none}
.tab-list::-webkit-scrollbar{display:none}
.tab-btn{flex-shrink:0;padding:.55rem 1rem;border:none;background:transparent;color:#555;border-bottom:3px solid transparent;margin-bottom:-2px;cursor:pointer;font-size:.875rem;font-weight:500;transition:var(--transition);white-space:nowrap}
.tab-btn.active{color:#000;border-bottom-color:var(--gold);font-weight:700}
.tab-btn:hover:not(.active){color:#000}
.tab-panel{display:none}
.tab-panel.active{display:block}

/* Table */
.table-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch}
table{width:100%;border-collapse:collapse;font-size:.875rem}
thead tr{border-bottom:2px solid #000;background:#f8f8f8}
th{padding:.65rem 1rem;text-align:left;font-weight:700;font-size:.72rem;text-transform:uppercase;letter-spacing:.04em;color:#000}
td{padding:.65rem 1rem;border-bottom:1px solid #ddd;color:#000;vertical-align:middle}
tr:last-child td{border-bottom:none}
tbody tr:hover{background:#fafafa}

/* Buttons */
.btn{display:inline-flex;align-items:center;gap:.4rem;padding:.5rem 1rem;border-radius:var(--radius);font-size:.875rem;font-weight:600;cursor:pointer;border:1.5px solid transparent;transition:var(--transition);white-space:nowrap;text-decoration:none;min-height:40px}
.btn-sm{padding:.35rem .75rem;font-size:.8rem;min-height:34px}
.btn-icon{padding:.4rem;border-radius:var(--radius);min-height:unset}
.btn-primary{background:var(--gold);color:#000;border-color:var(--gold-dark);font-weight:700}
.btn-primary:hover{background:var(--gold-dark);border-color:var(--gold-dark);opacity:1}
.btn-outline{background:transparent;color:#000;border-color:#000}
.btn-outline:hover{background:#f5f5f5;opacity:1}
.btn-ghost{background:transparent;border-color:transparent;color:#555}
.btn-ghost:hover{background:#f0f0f0;color:#000;opacity:1}
.btn-danger{background:transparent;border-color:var(--red);color:var(--red)}
.btn-danger:hover{background:rgba(239,68,68,.08);opacity:1}
.btn-green{background:#16a34a;border-color:#16a34a;color:#fff}
.btn-green:hover{background:#15803d;opacity:1}
.btn svg{width:15px;height:15px;stroke:currentColor}

/* Forms */
.form-group{margin-bottom:1rem}
.form-group:last-child{margin-bottom:0}
label{display:block;font-size:.82rem;font-weight:600;color:#000;margin-bottom:.35rem}
input,select,textarea{width:100%;padding:.6rem .85rem;background:#fff;color:#000;border:1.5px solid #000;border-radius:var(--radius);font-family:inherit;transition:border-color var(--transition);appearance:none;font-size:16px}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--gold);box-shadow:0 0 0 3px var(--gold-light)}
input::placeholder{color:#aaa}
select{background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23000' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right .75rem center;padding-right:2.2rem}
textarea{resize:vertical;min-height:80px}
input:disabled,input[readonly],select:disabled{opacity:.4;cursor:not-allowed}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:1rem}
@media(max-width:500px){.form-row{grid-template-columns:1fr}}
.form-hint{font-size:.75rem;color:#666;margin-top:.3rem}
.earning-preview{background:#f8f8f8;border:1.5px solid #000;border-radius:var(--radius);padding:.75rem 1rem;font-size:.875rem;margin-top:.5rem}
.earning-preview p{margin:.15rem 0}
.earning-preview strong{color:var(--gold-dark);font-weight:700}

/* Modal – bottom sheet on mobile, centred on desktop */
.modal-overlay{position:fixed;inset:0;z-index:500;background:rgba(0,0,0,.5);display:flex;align-items:flex-end;justify-content:center;padding:0;opacity:0;pointer-events:none;transition:opacity var(--transition)}
@media(min-width:600px){.modal-overlay{align-items:center;padding:1rem}}
.modal-overlay.open{opacity:1;pointer-events:all}
.modal{background:#fff;border:2px solid #000;border-radius:var(--radius-lg) var(--radius-lg) 0 0;width:100%;max-width:480px;max-height:92vh;overflow-y:auto;box-shadow:var(--shadow);transform:translateY(30px);transition:transform var(--transition);padding-bottom:env(safe-area-inset-bottom)}
@media(min-width:600px){.modal{border-radius:var(--radius-lg);transform:scale(.96)}}
.modal-overlay.open .modal{transform:translateY(0) scale(1)}
.modal-header{display:flex;align-items:center;justify-content:space-between;padding:1rem 1.25rem;border-bottom:1.5px solid #000;position:sticky;top:0;background:#fff;z-index:1}
.modal-header h3{font-size:1rem;color:#000}
.modal-close{background:none;border:1.5px solid #000;color:#000;cursor:pointer;padding:.2rem .55rem;border-radius:var(--radius);font-size:.9rem;font-weight:700}
.modal-close:hover{background:#f0f0f0}
.modal-body{padding:1.25rem}

/* Badge */
.badge{display:inline-flex;align-items:center;padding:.2rem .6rem;border-radius:99px;font-size:.72rem;font-weight:700;border:1px solid}
.badge-gold {background:var(--gold-light);color:var(--gold-dark);border-color:var(--gold)}
.badge-green{background:rgba(34,197,94,.12);color:#15803d;border-color:rgba(34,197,94,.4)}
.badge-red  {background:rgba(239,68,68,.1);color:#b91c1c;border-color:rgba(239,68,68,.4)}
.badge-muted{background:#f0f0f0;color:#555;border-color:#ccc}

/* Alert */
.alert{padding:.75rem 1rem;border-radius:var(--radius);font-size:.875rem;margin-bottom:1rem;display:flex;align-items:flex-start;gap:.5rem;border:1.5px solid}
.alert-success{background:rgba(34,197,94,.08);border-color:rgba(34,197,94,.4);color:#15803d}
.alert-error  {background:rgba(239,68,68,.08);border-color:rgba(239,68,68,.4);color:#b91c1c}
.alert-info   {background:rgba(59,130,246,.08);border-color:rgba(59,130,246,.4);color:#1d4ed8}
.alert-dismiss{margin-left:auto;background:none;border:none;color:inherit;cursor:pointer;font-size:1.1rem;opacity:.6;line-height:1}
.alert-dismiss:hover{opacity:1}

/* Section header */
.section-header{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:.75rem;margin-bottom:1rem}
.section-header h2{margin:0}
.section-actions{display:flex;gap:.5rem;flex-wrap:wrap}
.period-filter select{width:auto;font-size:.8rem;padding:.35rem .7rem}

/* Worker cards */
.worker-card{margin-bottom:1rem}
.worker-stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(110px,1fr));gap:1rem;padding:1rem 1.25rem}
.worker-stat-label{font-size:.72rem;color:#555;margin-bottom:.2rem;font-weight:600;text-transform:uppercase;letter-spacing:.03em}
.worker-stat-value{font-size:1.15rem;font-weight:700;color:#000}

/* Login */
.login-page{min-height:100vh;display:flex;align-items:center;justify-content:center;background:#fff;padding:1rem;padding-top:calc(1rem + env(safe-area-inset-top))}
.login-card{width:100%;max-width:400px;background:#fff;border:2px solid #000;border-radius:var(--radius-lg);box-shadow:var(--shadow);overflow:hidden}
.login-header{padding:2rem 2rem 1rem;text-align:center}
.login-header img{height:90px;margin:0 auto 1rem}
.login-header p{color:#555;font-size:.85rem;font-weight:500}
.login-body{padding:1.25rem 2rem 2rem}
.login-body .btn{width:100%;justify-content:center;margin-top:.5rem}
.login-toggle{text-align:center;margin-top:1rem;font-size:.83rem;color:#555}
.login-toggle button{background:none;border:none;color:var(--gold-dark);cursor:pointer;text-decoration:underline;font-size:inherit;font-weight:600}

/* Empty state */
.empty-state{text-align:center;padding:3rem 1rem;color:#555;font-size:.9rem}

/* PWA install bar */
#pwa-install-bar{position:fixed;bottom:0;left:0;right:0;background:#000;color:#fff;display:flex;align-items:center;justify-content:space-between;padding:.85rem 1rem;padding-bottom:calc(.85rem + env(safe-area-inset-bottom));z-index:999;gap:1rem;border-top:2px solid var(--gold);transform:translateY(100%);transition:transform .3s ease}
#pwa-install-bar.show{transform:translateY(0)}
#pwa-install-bar p{font-size:.83rem;line-height:1.4}
#pwa-install-bar strong{color:var(--gold)}
#pwa-install-bar .pwa-actions{display:flex;gap:.5rem;flex-shrink:0}
#pwa-install-bar .btn-install{background:var(--gold);color:#000;border:none;padding:.45rem .9rem;border-radius:var(--radius);font-weight:700;font-size:.82rem;cursor:pointer}
#pwa-install-bar .btn-dismiss{background:transparent;color:#fff;border:1px solid #555;padding:.45rem .75rem;border-radius:var(--radius);font-size:.82rem;cursor:pointer}

/* Responsive */
@media(max-width:768px){.stats-grid{grid-template-columns:1fr 1fr}.section-header{flex-direction:column;align-items:flex-start}table{font-size:.8rem}th,td{padding:.55rem .7rem}.main-content{padding-bottom:5rem}}
@media(max-width:480px){.stats-grid{grid-template-columns:1fr 1fr}.tab-btn{font-size:.77rem;padding:.45rem .65rem}h1{font-size:1.05rem}}

/* Spinner */
.spinner{width:36px;height:36px;border:3px solid #eee;border-top-color:var(--gold);border-radius:50%;animation:spin .7s linear infinite;margin:3rem auto}
@keyframes spin{to{transform:rotate(360deg)}}

/* Print */
@media print{.app-header,.btn,.tab-list,.modal-overlay,#pwa-install-bar{display:none!important}body{background:#fff;color:#000}.card{border:1px solid #000;box-shadow:none}}