/* =====================================================
   SLT Mobitel SMS Manager — Main Stylesheet
   Theme: SLT Mobitel Blue & Green
   ===================================================== */

:root {
    --slt-blue:      #003087;
    --slt-blue-mid:  #0050b3;
    --slt-blue-lt:   #1a6fc4;
    --slt-green:     #00a651;
    --slt-green-lt:  #00c962;
    --slt-green-dk:  #007a3d;
    --accent:        #00c962;
    --bg:            #f0f4f8;
    --bg-card:       #ffffff;
    --bg-dark:       #00204a;
    --text:          #1a2332;
    --text-mid:      #4a5568;
    --text-light:    #8898aa;
    --border:        #dce3ec;
    --shadow-sm:     0 2px 8px rgba(0,48,135,0.08);
    --shadow-md:     0 4px 20px rgba(0,48,135,0.13);
    --shadow-lg:     0 8px 40px rgba(0,48,135,0.18);
    --radius:        10px;
    --radius-lg:     16px;
    --font-display:  'Rajdhani', sans-serif;
    --font-body:     'DM Sans', sans-serif;
    --nav-h:         56px;
    --top-h:         60px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

body {
    font-family: var(--font-body);
    background: var(--bg);
    color: var(--text);
    font-size: 14px;
    line-height: 1.6;
    min-height: 100vh;
}

/* ---- TOPBAR ---- */
.topbar {
    background: linear-gradient(135deg, var(--slt-blue) 0%, var(--slt-blue-mid) 60%, var(--slt-blue-lt) 100%);
    height: var(--top-h);
    position: sticky; top: 0; z-index: 100;
    box-shadow: 0 2px 12px rgba(0,48,135,0.25);
}
.topbar-inner {
    max-width: 1400px; margin: 0 auto; padding: 0 24px;
    height: 100%; display: flex; align-items: center; justify-content: space-between;
}
.brand { display: flex; align-items: center; gap: 12px; }
.brand-logo { font-family: var(--font-display); font-size: 22px; font-weight: 700; letter-spacing: 1px; }
.brand-slt    { color: #ffffff; }
.brand-mobitel{ color: var(--slt-green-lt); }
.brand-divider { width: 1px; height: 24px; background: rgba(255,255,255,0.25); }
.brand-app { color: rgba(255,255,255,0.75); font-size: 13px; font-weight: 500; letter-spacing: 0.5px; }
.topbar-right { display: flex; align-items: center; gap: 12px; }
.user-chip {
    display: flex; align-items: center; gap: 8px;
    background: rgba(255,255,255,0.12); border: 1px solid rgba(255,255,255,0.2);
    padding: 6px 14px; border-radius: 50px; color: #fff; font-size: 13px;
}
.user-chip i { color: var(--slt-green-lt); }
.role-badge {
    font-size: 10px; font-weight: 600; letter-spacing: 0.5px;
    padding: 2px 8px; border-radius: 50px; text-transform: uppercase;
}
.role-admin    { background: var(--slt-green); color: #fff; }
.role-operator { background: rgba(255,255,255,0.2); color: #fff; }
.btn-logout {
    width: 36px; height: 36px; border-radius: 50%;
    background: rgba(255,255,255,0.1); border: 1px solid rgba(255,255,255,0.2);
    color: #fff; display: flex; align-items: center; justify-content: center;
    text-decoration: none; transition: all .2s;
}
.btn-logout:hover { background: rgba(220,50,50,0.5); border-color: transparent; }

/* ---- NAVBAR ---- */
.navbar {
    background: var(--bg-dark);
    height: var(--nav-h);
    position: sticky; top: var(--top-h); z-index: 99;
    border-bottom: 2px solid var(--slt-green);
}
.navbar-inner {
    max-width: 1400px; margin: 0 auto; padding: 0 16px;
    height: 100%; display: flex; align-items: center; gap: 2px;
    overflow-x: auto;
}
.navbar-inner::-webkit-scrollbar { height: 2px; }
.navbar-inner::-webkit-scrollbar-thumb { background: var(--slt-green); }
.nav-item {
    display: flex; align-items: center; gap: 8px;
    padding: 0 18px; height: 100%;
    color: rgba(255,255,255,0.65); text-decoration: none;
    font-size: 13px; font-weight: 500; letter-spacing: 0.3px;
    white-space: nowrap; position: relative;
    transition: color .2s;
}
.nav-item i { font-size: 14px; }
.nav-item::after {
    content: ''; position: absolute; bottom: 0; left: 50%; right: 50%;
    height: 3px; background: var(--slt-green);
    border-radius: 3px 3px 0 0; transition: left .2s, right .2s;
}
.nav-item:hover { color: #fff; }
.nav-item:hover::after { left: 12px; right: 12px; }
.nav-item.active { color: #fff; }
.nav-item.active::after { left: 12px; right: 12px; }
.nav-badge {
    font-size: 9px; font-weight: 700; padding: 2px 6px;
    background: rgba(0,166,81,0.25); color: var(--slt-green-lt);
    border-radius: 50px; letter-spacing: 0.5px; text-transform: uppercase;
}

/* ---- MAIN CONTENT ---- */
.main-content {
    max-width: 1400px; margin: 0 auto;
    padding: 28px 24px 48px;
    min-height: calc(100vh - var(--top-h) - var(--nav-h) - 50px);
}

/* ---- PAGE HEADER ---- */
.page-header {
    display: flex; align-items: center; justify-content: space-between;
    margin-bottom: 28px; flex-wrap: wrap; gap: 12px;
}
.page-title {
    font-family: var(--font-display);
    font-size: 26px; font-weight: 700; color: var(--slt-blue);
    display: flex; align-items: center; gap: 10px;
}
.page-title i { color: var(--slt-green); }
.page-subtitle { color: var(--text-light); font-size: 13px; margin-top: 2px; }

/* ---- CARDS ---- */
.card {
    background: var(--bg-card); border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm); border: 1px solid var(--border);
    overflow: hidden;
}
.card-header {
    padding: 18px 24px; border-bottom: 1px solid var(--border);
    display: flex; align-items: center; gap: 10px;
    background: linear-gradient(to right, rgba(0,48,135,0.03), transparent);
}
.card-header h3 {
    font-family: var(--font-display); font-size: 17px; font-weight: 600;
    color: var(--slt-blue);
}
.card-header i { color: var(--slt-green); font-size: 16px; }
.card-body { padding: 24px; }

/* ---- GRID ---- */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.col-span-2 { grid-column: span 2; }

/* ---- FORMS ---- */
.form-group { margin-bottom: 18px; }
.form-label {
    display: block; font-size: 12px; font-weight: 600;
    color: var(--text-mid); margin-bottom: 6px;
    text-transform: uppercase; letter-spacing: 0.5px;
}
.form-control {
    width: 100%; padding: 10px 14px; border-radius: var(--radius);
    border: 1.5px solid var(--border); font-family: var(--font-body);
    font-size: 14px; color: var(--text); background: #fff;
    transition: border-color .2s, box-shadow .2s;
    outline: none;
}
.form-control:focus {
    border-color: var(--slt-blue-lt);
    box-shadow: 0 0 0 3px rgba(0,80,179,0.1);
}
textarea.form-control { resize: vertical; min-height: 100px; }
.input-group { display: flex; gap: 8px; }
.input-group .form-control { flex: 1; }

/* ---- BUTTONS ---- */
.btn {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 10px 20px; border-radius: var(--radius);
    font-family: var(--font-body); font-size: 13px; font-weight: 600;
    cursor: pointer; border: none; transition: all .2s;
    text-decoration: none; letter-spacing: 0.3px; white-space: nowrap;
}
.btn-primary {
    background: linear-gradient(135deg, var(--slt-blue) 0%, var(--slt-blue-lt) 100%);
    color: #fff; box-shadow: 0 3px 12px rgba(0,48,135,0.25);
}
.btn-primary:hover { transform: translateY(-1px); box-shadow: 0 5px 18px rgba(0,48,135,0.35); }
.btn-success {
    background: linear-gradient(135deg, var(--slt-green-dk) 0%, var(--slt-green) 100%);
    color: #fff; box-shadow: 0 3px 12px rgba(0,166,81,0.25);
}
.btn-success:hover { transform: translateY(-1px); box-shadow: 0 5px 18px rgba(0,166,81,0.35); }
.btn-outline {
    background: transparent; color: var(--slt-blue);
    border: 1.5px solid var(--slt-blue);
}
.btn-outline:hover { background: var(--slt-blue); color: #fff; }
.btn-danger {
    background: linear-gradient(135deg, #c0392b, #e74c3c);
    color: #fff;
}
.btn-danger:hover { transform: translateY(-1px); }
.btn-sm { padding: 6px 14px; font-size: 12px; }
.btn-lg { padding: 13px 28px; font-size: 15px; }
.btn:disabled { opacity: 0.6; cursor: not-allowed; transform: none !important; }

/* ---- ALERTS ---- */
.alert {
    padding: 12px 16px; border-radius: var(--radius);
    border-left: 4px solid; margin-bottom: 18px; font-size: 13px;
    display: flex; align-items: flex-start; gap: 10px;
}
.alert-success { background: #e8f8f0; border-color: var(--slt-green); color: #145a32; }
.alert-danger   { background: #fdecea; border-color: #e74c3c; color: #7b241c; }
.alert-warning  { background: #fef9e7; border-color: #f39c12; color: #784212; }
.alert-info     { background: #e8f0fb; border-color: var(--slt-blue); color: #1a3a6b; }

/* ---- TABLE ---- */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 13px; }
thead th {
    background: linear-gradient(to right, var(--slt-blue), var(--slt-blue-mid));
    color: #fff; font-weight: 600; padding: 12px 16px;
    text-align: left; white-space: nowrap;
    font-family: var(--font-display); font-size: 13px; letter-spacing: 0.3px;
}
tbody tr { border-bottom: 1px solid var(--border); transition: background .15s; }
tbody tr:hover { background: rgba(0,48,135,0.03); }
tbody td { padding: 11px 16px; color: var(--text); vertical-align: middle; }
.table-empty { text-align: center; padding: 40px; color: var(--text-light); }

/* ---- BADGES ---- */
.badge {
    display: inline-block; padding: 3px 10px; border-radius: 50px;
    font-size: 11px; font-weight: 600; letter-spacing: 0.3px;
}
.badge-success { background: #e8f8f0; color: var(--slt-green-dk); }
.badge-danger  { background: #fdecea; color: #c0392b; }
.badge-info    { background: #e8f0fb; color: var(--slt-blue); }
.badge-warning { background: #fef9e7; color: #e67e22; }

/* ---- STAT CARDS ---- */
.stat-card {
    background: #fff; border-radius: var(--radius-lg);
    border: 1px solid var(--border); padding: 20px 24px;
    box-shadow: var(--shadow-sm); display: flex; align-items: center; gap: 16px;
}
.stat-icon {
    width: 52px; height: 52px; border-radius: 12px;
    display: flex; align-items: center; justify-content: center;
    font-size: 22px; flex-shrink: 0;
}
.stat-icon-blue  { background: rgba(0,48,135,0.1); color: var(--slt-blue); }
.stat-icon-green { background: rgba(0,166,81,0.1); color: var(--slt-green); }
.stat-icon-orange{ background: rgba(243,156,18,0.1); color: #e67e22; }
.stat-icon-red   { background: rgba(231,76,60,0.1); color: #e74c3c; }
.stat-value { font-family: var(--font-display); font-size: 28px; font-weight: 700; color: var(--slt-blue); line-height: 1; }
.stat-label { font-size: 12px; color: var(--text-light); margin-top: 4px; font-weight: 500; }

/* ---- PAGINATION ---- */
.pagination { display: flex; gap: 6px; align-items: center; margin-top: 16px; }
.page-link {
    padding: 6px 12px; border-radius: 6px; text-decoration: none;
    font-size: 13px; color: var(--slt-blue); border: 1px solid var(--border);
    background: #fff; transition: all .15s;
}
.page-link:hover, .page-link.active { background: var(--slt-blue); color: #fff; border-color: var(--slt-blue); }

/* ---- SMS HISTORY ---- */
.history-item {
    padding: 14px 16px; border-left: 3px solid var(--border);
    margin-bottom: 12px; border-radius: 0 var(--radius) var(--radius) 0;
    background: #fafbfc; transition: border-color .2s;
}
.history-item:hover { border-left-color: var(--slt-green); }
.history-item.success { border-left-color: var(--slt-green); }
.history-item.failed  { border-left-color: #e74c3c; }
.history-meta { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; margin-bottom: 6px; }
.history-date { font-size: 11px; color: var(--text-light); font-weight: 500; }
.history-msg  { font-size: 13px; color: var(--text); font-family: monospace; background: #f0f4f8; padding: 8px 12px; border-radius: 6px; }

/* ---- LOGIN PAGE ---- */
.login-page {
    min-height: 100vh; display: flex; align-items: center; justify-content: center;
    background: linear-gradient(135deg, var(--slt-blue) 0%, var(--bg-dark) 50%, #001428 100%);
    padding: 20px;
}
.login-box {
    background: #fff; border-radius: 20px; box-shadow: var(--shadow-lg);
    width: 100%; max-width: 420px; overflow: hidden;
}
.login-header {
    background: linear-gradient(135deg, var(--slt-blue), var(--slt-blue-mid));
    padding: 32px 36px 24px; text-align: center;
}
.login-logo { font-family: var(--font-display); font-size: 32px; font-weight: 700; }
.login-logo .slt { color: #fff; }
.login-logo .mob { color: var(--slt-green-lt); }
.login-subtitle { color: rgba(255,255,255,0.6); font-size: 13px; margin-top: 6px; }
.login-body { padding: 32px 36px; }
.login-body h2 { font-family: var(--font-display); font-size: 22px; color: var(--slt-blue); margin-bottom: 24px; }

/* ---- MODAL ---- */
.modal-overlay {
    position: fixed; inset: 0; background: rgba(0,20,40,0.6);
    display: flex; align-items: center; justify-content: center;
    z-index: 999; opacity: 0; pointer-events: none;
    transition: opacity .2s; padding: 20px;
}
.modal-overlay.open { opacity: 1; pointer-events: all; }
.modal {
    background: #fff; border-radius: var(--radius-lg); box-shadow: var(--shadow-lg);
    width: 100%; max-width: 520px; transform: translateY(20px);
    transition: transform .25s;
}
.modal-overlay.open .modal { transform: translateY(0); }
.modal-header {
    padding: 20px 24px; border-bottom: 1px solid var(--border);
    display: flex; align-items: center; justify-content: space-between;
}
.modal-header h4 { font-family: var(--font-display); font-size: 18px; color: var(--slt-blue); }
.modal-close { background: none; border: none; font-size: 20px; cursor: pointer; color: var(--text-light); }
.modal-body { padding: 24px; }
.modal-footer { padding: 16px 24px; border-top: 1px solid var(--border); display: flex; gap: 10px; justify-content: flex-end; }

/* ---- PASSWORD GENERATOR ---- */
.pass-group { display: flex; gap: 8px; align-items: center; }
.pass-strength { display: flex; gap: 4px; margin-top: 6px; }
.pass-bar { height: 3px; flex: 1; border-radius: 3px; background: var(--border); transition: background .3s; }
.pass-bar.weak   { background: #e74c3c; }
.pass-bar.medium { background: #f39c12; }
.pass-bar.strong { background: var(--slt-green); }

/* ---- FOOTER ---- */
.footer {
    background: var(--bg-dark);
    padding: 14px 24px; margin-top: 0;
}
.footer-inner {
    max-width: 1400px; margin: 0 auto;
    display: flex; align-items: center; justify-content: space-between;
    color: rgba(255,255,255,0.35); font-size: 11px;
}

/* ---- MISC ---- */
.text-center { text-align: center; }
.text-right  { text-align: right; }
.mt-1 { margin-top: 8px; }
.mt-2 { margin-top: 16px; }
.mt-3 { margin-top: 24px; }
.mb-1 { margin-bottom: 8px; }
.mb-2 { margin-bottom: 16px; }
.mb-3 { margin-bottom: 24px; }
.d-flex { display: flex; }
.align-center { align-items: center; }
.gap-2 { gap: 8px; }
.gap-3 { gap: 12px; }
.flex-1 { flex: 1; }
.copy-btn { cursor: pointer; padding: 8px 12px; background: var(--bg); border: 1px solid var(--border); border-radius: 6px; font-size: 12px; transition: all .15s; }
.copy-btn:hover { background: var(--slt-green); color: #fff; border-color: var(--slt-green); }

/* ---- RESPONSIVE ---- */
@media (max-width: 768px) {
    .grid-2 { grid-template-columns: 1fr; }
    .grid-3 { grid-template-columns: 1fr; }
    .col-span-2 { grid-column: span 1; }
    .main-content { padding: 16px; }
    .topbar-inner { padding: 0 12px; }
    .brand-app { display: none; }
    .user-chip span:first-of-type { display: none; }
}

@media (max-width: 480px) {
    .page-header { flex-direction: column; align-items: flex-start; }
}