/* GSM Multi Tool — shared frontend design system */
:root{--u-ink:#14213d;--u-deep:#071326;--u-paper:#ffffff;--u-bg:#f7f9fc;--u-line:#dfe7f2;--u-muted:#63718a;--u-blue:#2156df;--u-mint:#1fb58a;--u-radius:18px}
html[data-theme="dark"]{--bg-body:var(--u-bg);--card-bg:var(--u-paper);--navbar-bg:rgba(255,255,255,.84);--text-main:var(--u-ink);--text-muted:var(--u-muted);--border-color:var(--u-line);--modal-bg:#fff;--input-bg:#fff;--input-border:#d9e3f0;--card-shadow:0 14px 35px rgba(22,59,116,.09)}
body,html[data-theme="dark"] body{background:var(--u-bg)!important;color:var(--u-ink)!important;font-family:Inter,system-ui,sans-serif}body:after,html[data-theme="dark"] body:after{background:radial-gradient(780px 380px at 90% 0,#d7e8ff 0%,transparent 68%),radial-gradient(620px 360px at 0 18%,#d6fff2 0%,transparent 65%)!important;opacity:.72}body:before{opacity:0!important}h1,h2,h3,h4,h5,h6,.navbar-brand{color:var(--u-ink)!important;letter-spacing:-.035em}.text-muted{color:var(--u-muted)!important}.text-dark{color:var(--u-ink)!important}
.navbar{background:rgba(255,255,255,.86)!important;border-bottom:1px solid var(--u-line)!important;box-shadow:0 8px 28px rgba(33,68,120,.06);backdrop-filter:blur(18px)}.navbar-brand,.navbar-brand span{color:var(--u-ink)!important;text-shadow:none!important}.nav-link{color:#52627c!important;font-weight:700}.nav-link:hover{color:var(--u-blue)!important}.navbar-toggler{border-color:var(--u-line)!important}.navbar-toggler-icon{filter:none}.navbar-collapse{background:#fff!important}
.card,.glass-card,.login-card,.a2z-reg-card,.a2z-page-card,.sidebar-nav{background:rgba(255,255,255,.94)!important;border:1px solid var(--u-line)!important;border-radius:var(--u-radius)!important;box-shadow:0 14px 35px rgba(29,66,126,.09)!important;color:var(--u-ink)!important}.card-header{background:#fff!important;border-bottom-color:var(--u-line)!important}.card:hover{border-color:#b8cdf8!important}.form-control,.form-select{background:#fff!important;border:1px solid #d7e1ef!important;border-radius:12px!important;color:var(--u-ink)!important;padding:.7rem .85rem}.form-control:focus,.form-select:focus{border-color:#78a5ff!important;box-shadow:0 0 0 .2rem rgba(33,86,223,.12)!important}.form-label{color:#33435f!important;font-weight:700;font-size:.88rem}
.btn-modern,.btn-primary-modern,.login-btn,.a2z-btn-primary{background:var(--u-deep)!important;color:#fff!important;border:1px solid var(--u-deep)!important;border-radius:12px!important;box-shadow:0 9px 18px rgba(7,19,38,.16)!important}.btn-modern:hover,.btn-primary-modern:hover,.login-btn:hover,.a2z-btn-primary:hover{background:var(--u-blue)!important;border-color:var(--u-blue)!important;transform:translateY(-2px)}.btn-outline-modern,.btn-light{background:#fff!important;color:var(--u-ink)!important;border:1px solid var(--u-line)!important;border-radius:12px!important}.btn-outline-modern:hover,.btn-light:hover{background:#edf4ff!important;color:var(--u-blue)!important;border-color:#b8cdf8!important}
.sidebar-nav .nav-link{border-radius:12px}.sidebar-nav .nav-link:hover{background:#edf4ff!important;color:var(--u-blue)!important}.sidebar-nav .nav-link.active{background:var(--u-deep)!important;color:#fff!important;box-shadow:none!important}.sidebar-nav .nav-link.active i{color:#fff!important}.user-chip{background:#fff!important;border-color:var(--u-line)!important}.user-chip .u-name{color:var(--u-ink)!important}.user-chip .avatar{background:linear-gradient(135deg,#dce9ff,#d9fbf1)!important;color:var(--u-blue)!important}.btn-logout{background:#fff!important;border-color:var(--u-line)!important}
.table{color:var(--u-ink)!important}.table thead th{background:#f1f5fb!important;color:#54647d!important;border-color:var(--u-line)!important}.table td{border-color:var(--u-line)!important}.table tbody tr:hover td{background:#f8fbff!important}.alert{border-radius:12px}.badge{border-radius:99px}footer{background:var(--u-deep)!important;border:0!important;color:#b6c5dc!important}footer .text-muted,footer a{color:#b6c5dc!important}footer h1,footer h2,footer h3,footer h4,footer h5,footer h6{color:#fff!important}
.a2z-page-fill{min-height:calc(100vh - 160px)}.login-card,.a2z-reg-card{padding:38px 32px!important}.login-title,.x-gold,.a2z-reg-title{color:var(--u-ink)!important;background:none!important;-webkit-text-fill-color:var(--u-ink)!important}.login-sub,.a2z-reg-sub{color:var(--u-muted)!important}.back-home a{color:var(--u-blue)!important}
@media(max-width:991px){.navbar-collapse{margin-top:.75rem;padding:1rem;border:1px solid var(--u-line);border-radius:14px;box-shadow:0 12px 25px rgba(25,60,110,.1)}}