/* === Reset & Variables === */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}

:root{
    --bg:#f0f2f5;
    --surface:#fff;
    --border:#e0e4e8;
    --text:#1a1d23;
    --text-muted:#6b7280;
    --primary:#2563eb;
    --primary-hover:#1d4ed8;
    --primary-bg:#eff6ff;
    --green:#16a34a;
    --green-bg:#f0fdf4;
    --amber:#d97706;
    --amber-bg:#fffbeb;
    --red:#dc2626;
    --red-bg:#fef2f2;
    --purple:#7c3aed;
    --purple-bg:#f5f3ff;
    --gray-bg:#f9fafb;
    --radius:10px;
    --shadow:0 1px 3px rgba(0,0,0,.06),0 1px 2px rgba(0,0,0,.04);
    --shadow-md:0 4px 6px rgba(0,0,0,.05),0 2px 4px rgba(0,0,0,.04);
}

body{
    font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;
    background:var(--bg);color:var(--text);line-height:1.6;min-height:100vh;
    -webkit-font-smoothing:antialiased;
}

/* === Navbar === */
.navbar{
    background:var(--surface);border-bottom:1px solid var(--border);
    padding:0 24px;height:56px;display:flex;align-items:center;justify-content:space-between;
    box-shadow:var(--shadow);position:sticky;top:0;z-index:100;
}
.brand{font-size:18px;font-weight:700;color:var(--primary);text-decoration:none;letter-spacing:-.3px;}
.brand::before{content:'✦ ';color:var(--amber);}
.nav-right{display:flex;align-items:center;gap:20px;}
.nav-user{color:var(--text-muted);font-size:13px;background:var(--gray-bg);padding:4px 12px;border-radius:20px;}
.nav-link{color:var(--text-muted);text-decoration:none;font-size:13px;font-weight:500;padding:6px 4px;transition:color .15s;}
.nav-link:hover{color:var(--primary);}

/* === Container === */
.container{max-width:1140px;margin:0 auto;padding:28px 24px;}

/* === Auth === */
.auth-container{display:flex;justify-content:center;padding-top:100px;}
.auth-card{
    background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);
    padding:44px 40px;width:100%;max-width:420px;text-align:center;box-shadow:var(--shadow-md);
}
.auth-card h1{font-size:28px;margin-bottom:4px;letter-spacing:-.5px;}
.auth-card .subtitle{color:var(--text-muted);margin-bottom:28px;font-size:14px;}
.auth-card label{display:block;text-align:left;font-size:13px;font-weight:600;margin-bottom:4px;margin-top:14px;color:var(--text);}
.auth-card input{
    width:100%;padding:10px 14px;border:1.5px solid var(--border);border-radius:8px;font-size:15px;
    transition:border-color .15s,box-shadow .15s;background:var(--gray-bg);
}
.auth-card input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(37,99,235,.12);}

/* === Buttons === */
.btn{
    display:inline-flex;align-items:center;gap:4px;padding:8px 16px;
    border:1px solid var(--border);border-radius:8px;background:var(--surface);
    cursor:pointer;font-size:13px;font-weight:500;text-decoration:none;color:var(--text);
    transition:all .15s;
}
.btn:hover{background:var(--gray-bg);border-color:#cbd5e1;}
.btn-primary{background:var(--primary);color:#fff;border-color:var(--primary);font-weight:600;}
.btn-primary:hover{background:var(--primary-hover);border-color:var(--primary-hover);}
.btn-sm{padding:5px 12px;font-size:12px;border-radius:6px;}
.btn-full{width:100%;margin-top:20px;padding:12px;font-size:16px;justify-content:center;}

/* === Dashboard === */
.dashboard-header{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px;margin-bottom:20px;}
.dashboard-header h1{font-size:26px;font-weight:700;letter-spacing:-.4px;}
.stats-row{display:flex;gap:6px;}
.stat{
    padding:10px 18px;background:var(--surface);border:1.5px solid var(--border);border-radius:10px;
    text-decoration:none;color:var(--text-muted);font-size:13px;font-weight:500;
    display:flex;align-items:center;gap:8px;transition:all .15s;box-shadow:var(--shadow);
}
.stat:hover{border-color:var(--primary);transform:translateY(-1px);}
.stat.active{border-color:var(--primary);background:var(--primary-bg);color:var(--primary);}
.stat-num{font-size:22px;font-weight:700;}

.filters{margin-bottom:18px;}
.filters select,.filters input{
    padding:7px 12px;border:1.5px solid var(--border);border-radius:8px;font-size:13px;
    background:var(--surface);color:var(--text);cursor:pointer;
}
.checkbox-label{font-size:13px;color:var(--text-muted);cursor:pointer;display:flex;align-items:center;gap:6px;}

/* === Tables === */
.ticket-table{width:100%;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);border-collapse:separate;border-spacing:0;overflow:hidden;box-shadow:var(--shadow);}
.ticket-table th{background:var(--gray-bg);padding:10px 16px;text-align:left;font-size:12px;font-weight:600;color:var(--text-muted);text-transform:uppercase;letter-spacing:.3px;border-bottom:1px solid var(--border);}
.ticket-table td{padding:12px 16px;border-bottom:1px solid var(--border);font-size:14px;vertical-align:middle;}
.ticket-table tr:last-child td{border-bottom:none;}
.ticket-row{cursor:pointer;transition:background .12s;}
.ticket-row:hover{background:var(--primary-bg);}
.ticket-id{font-weight:600;color:var(--text-muted);white-space:nowrap;font-size:13px;}
.time-col{white-space:nowrap;color:var(--text-muted);font-size:12px;}

/* === Status & Priority Badges === */
.status-badge{display:inline-block;padding:3px 10px;border-radius:12px;font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.2px;}
.status-open{background:var(--primary-bg);color:var(--primary);}
.status-in_progress{background:var(--amber-bg);color:var(--amber);}
.status-resolved{background:var(--green-bg);color:var(--green);}
.status-closed{background:var(--gray-bg);color:var(--text-muted);}
.priority-badge{display:inline-block;padding:3px 10px;border-radius:12px;font-size:11px;font-weight:600;}
.priority-low{background:#ecfdf5;color:#065f46;}
.priority-medium{background:var(--amber-bg);color:#92400e;}
.priority-high{background:var(--red-bg);color:#991b1b;}
.priority-urgent{background:#7f1d1d;color:#fff;}

/* === Ticket Detail === */
.ticket-detail{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:28px;box-shadow:var(--shadow);}
.detail-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px;flex-wrap:wrap;gap:8px;}
.detail-actions{display:flex;gap:8px;align-items:center;}
.detail-actions select{
    padding:6px 12px;border:1.5px solid var(--border);border-radius:8px;font-size:13px;
    background:var(--surface);cursor:pointer;font-weight:500;
}
.status-select{font-weight:600;min-width:110px;}
.ticket-meta{display:flex;flex-wrap:wrap;gap:14px;font-size:13px;color:var(--text-muted);margin-bottom:16px;}
.ticket-meta .meta-item{display:flex;align-items:center;gap:4px;}
.ticket-subject{font-size:20px;font-weight:700;margin-bottom:20px;padding-bottom:14px;border-bottom:2px solid var(--border);letter-spacing:-.3px;}

/* === Messages Thread === */
.thread{margin-bottom:24px;}
.message{padding:18px 20px;border-radius:10px;margin-bottom:10px;border:1px solid var(--border);transition:box-shadow .15s;}
.message:hover{box-shadow:var(--shadow);}
.msg-customer{background:#fff;border-left:4px solid var(--primary);}
.msg-agent{background:var(--green-bg);border-left:4px solid var(--green);}
.msg-header{display:flex;justify-content:space-between;margin-bottom:10px;font-size:13px;}
.msg-sender{font-weight:600;font-size:14px;}
.msg-sender::before{content:'';display:inline-block;width:8px;height:8px;border-radius:50%;margin-right:8px;}
.msg-customer .msg-sender::before{background:var(--primary);}
.msg-agent .msg-sender::before{background:var(--green);}
.msg-time{color:var(--text-muted);font-size:12px;}
.msg-body{white-space:pre-wrap;font-size:14px;line-height:1.7;color:#374151;}

/* === Reply === */
.reply-form{padding-top:20px;border-top:1px solid var(--border);}
.reply-form h3{margin-bottom:10px;font-size:16px;}
.reply-form textarea{
    width:100%;padding:14px;border:1.5px solid var(--border);border-radius:10px;
    font-size:14px;font-family:inherit;resize:vertical;line-height:1.7;
    transition:border-color .15s,box-shadow .15s;min-height:120px;
}
.reply-form textarea:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(37,99,235,.1);}
.reply-form button{margin-top:10px;}
.reply-form select{padding:6px 12px;border:1.5px solid var(--border);border-radius:8px;font-size:13px;background:var(--surface);cursor:pointer;}
.closed-notice{text-align:center;padding:24px;color:var(--text-muted);background:var(--gray-bg);border-radius:8px;}

/* === Cards & Forms === */
.user-create{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:22px 24px;margin-bottom:24px;box-shadow:var(--shadow);}
.user-create h3{margin-bottom:14px;font-size:15px;font-weight:600;}
.user-create form{display:flex;gap:10px;flex-wrap:wrap;}
.user-create input,.user-create select{
    padding:9px 14px;border:1.5px solid var(--border);border-radius:8px;font-size:14px;
    flex:1;min-width:120px;background:var(--gray-bg);
}
.user-create textarea{
    width:100%;padding:10px 14px;border:1.5px solid var(--border);border-radius:8px;font-size:14px;
    font-family:inherit;resize:vertical;background:var(--gray-bg);
}

/* === Flash === */
.flash{padding:10px 16px;border-radius:8px;margin-bottom:16px;font-size:14px;}
.flash-error{background:var(--red-bg);color:var(--red);border:1px solid #fecaca;}

/* === Empty State === */
.empty-state{
    text-align:center;padding:56px;background:var(--surface);border:1px solid var(--border);
    border-radius:var(--radius);color:var(--text-muted);font-size:16px;box-shadow:var(--shadow);
}
.empty-state::before{content:'📭';display:block;font-size:40px;margin-bottom:12px;}

/* === Test Email Toggle === */
.test-email-section{margin-top:20px;}

/* === Responsive === */
@media(max-width:768px){
    .dashboard-header{flex-direction:column;align-items:flex-start;}
    .ticket-table th:nth-child(4),.ticket-table td:nth-child(4),
    .ticket-table th:nth-child(5),.ticket-table td:nth-child(5){display:none;}
    .container{padding:16px 12px;}
    .ticket-detail{padding:20px 16px;}
    .stats-row{width:100%;overflow-x:auto;}
}