/* ==========================================================
   Smart Call Management CRM - Core Stylesheet
   ========================================================== */

:root{
    --c-primary:   #0F172A;
    --c-secondary: #2563EB;
    --c-accent:    #38BDF8;
    --c-success:   #22C55E;
    --c-warning:   #F59E0B;
    --c-danger:    #EF4444;
    --c-bg:        #F8FAFC;
    --c-card:      #FFFFFF;
    --radius-lg: 18px;
    --radius-md: 12px;
    --radius-sm: 8px;
    --shadow-soft: 0 10px 30px rgba(15,23,42,0.06);
    --shadow-hover: 0 16px 40px rgba(15,23,42,0.12);
    --sidebar-w: 260px;
}

[data-theme="dark"]{
    --c-bg: #0B1220;
    --c-card: #131B2E;
    --c-primary: #E2E8F0;
}

*{ box-sizing:border-box; }

body{
    font-family:'Poppins', system-ui, sans-serif;
    background:var(--c-bg);
    color:#1E293B;
    transition:background .3s ease, color .3s ease;
}
[data-theme="dark"] body{ color:#E2E8F0; }

a{ text-decoration:none; }

/* ---------- Layout ---------- */
.app-shell{ display:flex; min-height:100vh; }

.sidebar{
    width:var(--sidebar-w);
    background:linear-gradient(180deg,#0F172A 0%, #16213A 100%);
    color:#CBD5E1;
    position:fixed;
    top:0; left:0; bottom:0;
    display:flex;
    flex-direction:column;
    transition:transform .3s ease, width .3s ease;
    z-index:1030;
}
.sidebar.collapsed{ width:76px; }
.sidebar.collapsed .nav-label,
.sidebar.collapsed .brand-text{ display:none; }

.sidebar .brand{
    display:flex; align-items:center; gap:.6rem;
    padding:1.4rem 1.2rem;
    font-weight:700; font-size:1rem; line-height:1.15; color:#fff;
    border-bottom:1px solid rgba(255,255,255,0.08);
}
.sidebar .brand i{ color:var(--c-accent); font-size:1.5rem; }

.sidebar-nav{ flex:1; overflow-y:auto; padding:1rem 0.6rem; }
.sidebar-nav .nav-link{
    display:flex; align-items:center; gap:.85rem;
    color:#CBD5E1; padding:.7rem .9rem; border-radius:var(--radius-sm);
    margin-bottom:.25rem; font-size:.92rem; font-weight:500;
}
.sidebar-nav .nav-link i{ width:20px; text-align:center; color:var(--c-accent); }
.sidebar-nav .nav-link:hover,
.sidebar-nav .nav-link.active{
    background:rgba(56,189,248,0.12);
    color:#fff;
}
.sidebar-nav .nav-section{
    text-transform:uppercase; font-size:.68rem; letter-spacing:.08em;
    color:#64748B; margin:1rem .9rem .4rem;
}

.main-content{
    margin-left:var(--sidebar-w);
    flex:1; min-width:0;
    transition:margin-left .3s ease;
}
.main-content.expanded{ margin-left:76px; }

/* ---------- Topbar ---------- */
.topbar{
    position:sticky; top:0; z-index:1020;
    background:rgba(248,250,252,0.85);
    backdrop-filter:blur(10px);
    border-bottom:1px solid rgba(15,23,42,0.06);
    padding:.8rem 1.5rem;
    display:flex; align-items:center; justify-content:space-between;
}
[data-theme="dark"] .topbar{ background:rgba(11,18,32,0.85); }

.search-pill{
    background:#fff; border-radius:50px; padding:.5rem 1rem;
    box-shadow:var(--shadow-soft); display:flex; align-items:center; gap:.6rem;
    min-width:320px;
}
[data-theme="dark"] .search-pill{ background:#131B2E; }
.search-pill input{ border:none; outline:none; background:transparent; width:100%; font-size:.9rem; color:inherit; }

.icon-btn{
    width:42px; height:42px; border-radius:50%;
    display:flex; align-items:center; justify-content:center;
    background:#fff; box-shadow:var(--shadow-soft); position:relative; color:#334155;
}
[data-theme="dark"] .icon-btn{ background:#131B2E; color:#CBD5E1; }
.icon-btn .dot{
    position:absolute; top:6px; right:8px; width:8px; height:8px;
    border-radius:50%; background:var(--c-danger); border:2px solid #fff;
}

/* ---------- Cards ---------- */
.card-glass{
    background:var(--c-card);
    border-radius:var(--radius-lg);
    border:1px solid rgba(15,23,42,0.05);
    box-shadow:var(--shadow-soft);
    transition:transform .25s ease, box-shadow .25s ease;
}
.card-glass:hover{ transform:translateY(-3px); box-shadow:var(--shadow-hover); }

.stat-card{
    padding:1.4rem; border-radius:var(--radius-lg);
    background:var(--c-card); box-shadow:var(--shadow-soft);
    display:flex; align-items:center; gap:1rem;
    border-left:4px solid var(--c-secondary);
}
.stat-card .stat-icon{
    width:52px; height:52px; border-radius:14px;
    display:flex; align-items:center; justify-content:center; font-size:1.4rem; color:#fff;
    background:linear-gradient(135deg, var(--c-secondary), var(--c-accent));
}
.stat-card .stat-value{ font-size:1.6rem; font-weight:700; line-height:1; }
.stat-card .stat-label{ font-size:.8rem; color:#64748B; margin-top:.2rem; }

/* ---------- Buttons ---------- */
.btn-gradient{
    background:linear-gradient(135deg, var(--c-secondary), var(--c-accent));
    color:#fff; border:none; border-radius:50px; padding:.55rem 1.4rem;
    font-weight:600; box-shadow:0 8px 20px rgba(37,99,235,0.28);
    transition:transform .2s ease, box-shadow .2s ease;
}
.btn-gradient:hover{ transform:translateY(-2px); box-shadow:0 12px 26px rgba(37,99,235,0.35); color:#fff; }

.btn-soft-success{ background:rgba(34,197,94,0.12); color:#15803D; border:none; border-radius:50px; font-weight:600; }
.btn-soft-danger{ background:rgba(239,68,68,0.12); color:#B91C1C; border:none; border-radius:50px; font-weight:600; }

/* ---------- Badges ---------- */
.bg-primary-soft{ background:rgba(37,99,235,0.12); }
.bg-info-soft{ background:rgba(56,189,248,0.15); }
.badge{ font-weight:600; padding:.4em .75em; border-radius:50px; }

/* ---------- Tables ---------- */
.table-modern thead{ background:#F1F5F9; }
[data-theme="dark"] .table-modern thead{ background:#182238; }
.table-modern th{ font-size:.75rem; text-transform:uppercase; letter-spacing:.04em; color:#64748B; border:none; padding:.9rem 1rem; }
.table-modern td{ padding:.9rem 1rem; vertical-align:middle; border-color:rgba(15,23,42,0.05); }
.table-modern tbody tr{ transition:background .15s ease; }
.table-modern tbody tr:hover{ background:rgba(37,99,235,0.04); }

/* ---------- Timeline ---------- */
.timeline{ position:relative; padding-left:2rem; }
.timeline::before{
    content:''; position:absolute; left:9px; top:6px; bottom:6px;
    width:2px; background:linear-gradient(180deg, var(--c-secondary), transparent);
}
.timeline-item{ position:relative; margin-bottom:1.6rem; }
.timeline-item::before{
    content:''; position:absolute; left:-2rem; top:4px;
    width:14px; height:14px; border-radius:50%;
    background:var(--c-accent); border:3px solid #fff; box-shadow:0 0 0 3px rgba(56,189,248,0.25);
}
.timeline-item .timeline-date{ font-size:.75rem; color:#64748B; font-weight:600; }
.timeline-item .timeline-card{
    background:var(--c-card); border-radius:var(--radius-md); padding:1rem 1.2rem;
    box-shadow:var(--shadow-soft); margin-top:.4rem;
}

/* ---------- Login ---------- */
.auth-wrapper{
    min-height:100vh; display:flex; align-items:center; justify-content:center;
    background:radial-gradient(circle at top left, #16213A, #0F172A 60%);
    padding:1.5rem;
}
.auth-card{
    background:rgba(255,255,255,0.98); border-radius:var(--radius-lg);
    box-shadow:0 30px 60px rgba(0,0,0,0.35); overflow:hidden;
    display:flex; max-width:920px; width:100%;
}
.auth-visual{
    flex:1; background:linear-gradient(160deg, var(--c-secondary), var(--c-primary));
    color:#fff; padding:3rem 2.5rem; display:flex; flex-direction:column; justify-content:center;
}
.auth-form-side{ flex:1; padding:3rem 2.5rem; }
.form-control-rounded{ border-radius:var(--radius-sm); padding:.7rem 1rem; border:1px solid #E2E8F0; }
.form-control-rounded:focus{ border-color:var(--c-secondary); box-shadow:0 0 0 3px rgba(37,99,235,0.15); }

@media (max-width: 991px){
    .auth-visual{ display:none; }
    .sidebar{ transform:translateX(-100%); }
    .sidebar.show{ transform:translateX(0); }
    .main-content{ margin-left:0; }
}

/* ---------- Loading skeleton ---------- */
.skeleton{ background:linear-gradient(90deg,#E2E8F0 25%,#F1F5F9 37%,#E2E8F0 63%); background-size:400% 100%; animation:skeleton-loading 1.4s ease infinite; border-radius:8px; }
@keyframes skeleton-loading{ 0%{background-position:100% 50%;} 100%{background-position:0 50%;} }

/* ---------- Misc ---------- */
.category-pill{ font-size:.72rem; padding:.3em .8em; border-radius:50px; font-weight:600; }
.avatar-circle{
    width:44px; height:44px; border-radius:50%; background:linear-gradient(135deg,var(--c-secondary),var(--c-accent));
    color:#fff; display:flex; align-items:center; justify-content:center; font-weight:600;
}
.fade-in{ animation:fadeIn .4s ease both; }
@keyframes fadeIn{ from{opacity:0; transform:translateY(6px);} to{opacity:1; transform:translateY(0);} }