/* ================================================================
   ELISA — Custom Design System
   Electronic Letter Information System and Administration
   ================================================================ */

/* ─── Google Fonts ─────────────────────────────────────────────── */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

/* ─── CSS Variables ─────────────────────────────────────────────── */
:root {
    --primary:        #1e3a5f;
    --primary-light:  #2d5282;
    --primary-dark:   #152a45;
    --accent:         #0ea5e9;
    --accent-light:   #38bdf8;
    --success:        #10b981;
    --warning:        #f59e0b;
    --danger:         #ef4444;
    --info:           #6366f1;

    --bg-dark:        #0f172a;
    --bg-card:        #ffffff;
    --bg-body:        #f1f5f9;
    --bg-sidebar:     #1e293b;

    --text-primary:   #0f172a;
    --text-secondary: #64748b;
    --text-muted:     #94a3b8;
    --text-white:     #f8fafc;

    --border:         #e2e8f0;
    --border-focus:   #0ea5e9;

    --shadow-sm:      0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.06);
    --shadow:         0 4px 16px rgba(0,0,0,.10), 0 2px 4px rgba(0,0,0,.06);
    --shadow-lg:      0 10px 40px rgba(0,0,0,.15), 0 4px 6px rgba(0,0,0,.05);
    --shadow-primary: 0 8px 24px rgba(30,58,95,.3);

    --radius-sm:      6px;
    --radius:         12px;
    --radius-lg:      16px;
    --radius-xl:      24px;

    --sidebar-width:  260px;
    --topnav-height:  60px;

    --transition:     all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html { scroll-behavior: smooth; }

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    font-size: 14px;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-body);
    -webkit-font-smoothing: antialiased;
}

/* ─── Top Navbar ────────────────────────────────────────────────── */
.sb-topnav {
    height: var(--topnav-height);
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 60%, var(--primary-light) 100%) !important;
    box-shadow: 0 2px 20px rgba(15,23,42,.4);
    border-bottom: 1px solid rgba(255,255,255,.08);
    backdrop-filter: blur(10px);
    z-index: 1040;
    padding: 0 1rem;
}

.navbar-brand {
    font-size: 1.25rem !important;
    font-weight: 800 !important;
    color: #fff !important;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: var(--transition);
}

.navbar-brand::before {
    content: '✉';
    font-size: 1.1rem;
    opacity: 0.9;
}

.navbar-brand:hover { opacity: 0.9; transform: translateY(-1px); }

#sidebarToggle {
    color: rgba(255,255,255,.85) !important;
    font-size: 1.1rem;
    padding: 6px 10px;
    border-radius: var(--radius-sm);
    transition: var(--transition);
}
#sidebarToggle:hover { background: rgba(255,255,255,.1); color: #fff !important; }

.navbar-nav .nav-link {
    color: rgba(255,255,255,.85) !important;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 6px;
    border-radius: var(--radius-sm);
    padding: 6px 12px !important;
    transition: var(--transition);
}
.navbar-nav .nav-link:hover { color: #fff !important; background: rgba(255,255,255,.1); }

.dropdown-menu {
    border: none;
    box-shadow: var(--shadow-lg);
    border-radius: var(--radius);
    overflow: hidden;
    animation: dropIn 0.2s ease;
}
.dropdown-item { padding: 10px 16px; font-size: 13px; font-weight: 500; transition: var(--transition); }
.dropdown-item:hover { background: var(--bg-body); color: var(--primary); }

@keyframes dropIn {
    from { opacity: 0; transform: translateY(-8px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* ─── Sidebar ───────────────────────────────────────────────────── */
#layoutSidenav {
    display: flex;
    padding-top: var(--topnav-height);
}

#layoutSidenav_nav {
    flex-basis: var(--sidebar-width);
    flex-shrink: 0;
    transition: var(--transition);
    position: fixed;
    top: var(--topnav-height);
    height: calc(100vh - var(--topnav-height));
    z-index: 1035;
    overflow-y: auto;
}

#layoutSidenav_content {
    flex-grow: 1;
    padding-left: var(--sidebar-width);
    min-height: calc(100vh - var(--topnav-height));
    transition: var(--transition);
}

.sb-sidenav {
    background: var(--bg-sidebar) !important;
    border-right: 1px solid rgba(255,255,255,.05);
    height: 100%;
}

.sb-sidenav-menu {
    padding: 1.25rem 0.75rem;
}

.sb-sidenav-menu .nav {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.sb-sidenav-menu .nav-link {
    color: rgba(248,250,252,.65) !important;
    font-weight: 500;
    font-size: 13.5px;
    padding: 10px 14px !important;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    gap: 10px;
    transition: var(--transition);
    text-decoration: none;
    position: relative;
    overflow: hidden;
}

.sb-sidenav-menu .nav-link::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
    width: 3px;
    background: var(--accent);
    border-radius: 0 2px 2px 0;
    transform: scaleY(0);
    transition: var(--transition);
}

.sb-sidenav-menu .nav-link:hover,
.sb-sidenav-menu .nav-link.active {
    color: #fff !important;
    background: rgba(14,165,233,.15) !important;
}

.sb-sidenav-menu .nav-link:hover::before,
.sb-sidenav-menu .nav-link.active::before {
    transform: scaleY(1);
}

.sb-nav-link-icon {
    width: 20px;
    text-align: center;
    font-size: 0.9rem;
    opacity: 0.8;
}

.sb-sidenav-menu .nav-link.text-danger-soft {
    color: rgba(239,68,68,.8) !important;
}
.sb-sidenav-menu .nav-link.text-danger-soft:hover {
    color: #ef4444 !important;
    background: rgba(239,68,68,.1) !important;
}

/* Sidebar Toggle behavior */
.sb-sidenav-toggled #layoutSidenav_nav { transform: translateX(-100%); }
.sb-sidenav-toggled #layoutSidenav_content { padding-left: 0; }

/* ─── Main Content Area ─────────────────────────────────────────── */
main {
    padding: 1.5rem;
}

/* ─── Cards ─────────────────────────────────────────────────────── */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    transition: var(--transition);
}

.card:hover { box-shadow: var(--shadow); }

.card-header {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    color: #fff;
    font-size: 1.05rem;
    font-weight: 700;
    padding: 1rem 1.25rem;
    border: none;
    letter-spacing: 0.3px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.card-body { padding: 1.5rem; }

/* ─── Stat Cards ─────────────────────────────────────────────────── */
.stat-card {
    background: var(--bg-card);
    border-radius: var(--radius);
    padding: 1.5rem;
    display: flex;
    align-items: center;
    gap: 1.25rem;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border);
    transition: var(--transition);
    cursor: default;
    overflow: hidden;
    position: relative;
}

.stat-card::after {
    content: '';
    position: absolute;
    top: 0; right: 0;
    width: 80px; height: 80px;
    border-radius: 50%;
    opacity: 0.06;
    transform: translate(20px, -20px);
}

.stat-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }

.stat-card__icon {
    width: 56px; height: 56px;
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    flex-shrink: 0;
}

.stat-card__body { flex: 1; }
.stat-card__label { font-size: 12px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.8px; color: var(--text-muted); margin-bottom: 4px; }
.stat-card__value { font-size: 2rem; font-weight: 800; line-height: 1; }

/* Stat Card Variants */
.stat-card--primary .stat-card__icon { background: rgba(30,58,95,.1); color: var(--primary); }
.stat-card--primary .stat-card__value { color: var(--primary); }
.stat-card--primary::after { background: var(--primary); }

.stat-card--warning .stat-card__icon { background: rgba(245,158,11,.1); color: var(--warning); }
.stat-card--warning .stat-card__value { color: var(--warning); }
.stat-card--warning::after { background: var(--warning); }

.stat-card--success .stat-card__icon { background: rgba(16,185,129,.1); color: var(--success); }
.stat-card--success .stat-card__value { color: var(--success); }
.stat-card--success::after { background: var(--success); }

.stat-card--info .stat-card__icon { background: rgba(99,102,241,.1); color: var(--info); }
.stat-card--info .stat-card__value { color: var(--info); }
.stat-card--info::after { background: var(--info); }

/* ─── Tables ─────────────────────────────────────────────────────── */
.table-wrapper {
    overflow-x: auto;
    border-radius: var(--radius-sm);
}

table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13.5px;
}

thead th {
    background: var(--bg-body);
    color: var(--text-secondary);
    font-weight: 700;
    font-size: 11.5px;
    text-transform: uppercase;
    letter-spacing: 0.7px;
    padding: 12px 14px;
    border-bottom: 2px solid var(--border);
    white-space: nowrap;
}

tbody tr {
    transition: var(--transition);
    border-bottom: 1px solid var(--border);
}

tbody tr:last-child { border-bottom: none; }
tbody tr:hover { background-color: rgba(14,165,233,.03); }

tbody td {
    padding: 12px 14px;
    vertical-align: middle;
    color: var(--text-primary);
}

/* ─── Status Badges ─────────────────────────────────────────────── */
.badge-status {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 11.5px;
    font-weight: 600;
}

.badge-done {
    background: rgba(16,185,129,.12);
    color: #059669;
}

.badge-pending {
    background: rgba(245,158,11,.12);
    color: #d97706;
}

.badge-new {
    background: rgba(99,102,241,.12);
    color: #4f46e5;
}

/* ─── Buttons ────────────────────────────────────────────────────── */
.btn {
    font-family: 'Inter', sans-serif;
    font-weight: 600;
    font-size: 13px;
    border-radius: var(--radius-sm);
    padding: 8px 18px;
    transition: var(--transition);
    border: none;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    cursor: pointer;
    text-decoration: none;
}

.btn:active { transform: scale(0.97); }

.btn-primary-custom {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    color: #fff;
    box-shadow: 0 4px 12px rgba(30,58,95,.3);
}
.btn-primary-custom:hover { box-shadow: 0 6px 20px rgba(30,58,95,.4); transform: translateY(-2px); color: #fff; }

.btn-accent {
    background: linear-gradient(135deg, var(--accent) 0%, var(--accent-light) 100%);
    color: #fff;
    box-shadow: 0 4px 12px rgba(14,165,233,.3);
}
.btn-accent:hover { box-shadow: 0 6px 20px rgba(14,165,233,.4); transform: translateY(-2px); color: #fff; }

.btn-success-custom {
    background: linear-gradient(135deg, #059669 0%, var(--success) 100%);
    color: #fff;
    box-shadow: 0 4px 12px rgba(16,185,129,.3);
}
.btn-success-custom:hover { box-shadow: 0 6px 20px rgba(16,185,129,.4); transform: translateY(-2px); color: #fff; }

.btn-danger-custom {
    background: linear-gradient(135deg, #dc2626 0%, var(--danger) 100%);
    color: #fff;
    box-shadow: 0 4px 12px rgba(239,68,68,.3);
}
.btn-danger-custom:hover { box-shadow: 0 6px 20px rgba(239,68,68,.4); transform: translateY(-2px); color: #fff; }

.btn-outline-custom {
    background: transparent;
    border: 1.5px solid var(--border);
    color: var(--text-secondary);
}
.btn-outline-custom:hover { border-color: var(--accent); color: var(--accent); background: rgba(14,165,233,.05); }

.btn-sm { padding: 5px 12px; font-size: 12px; }
.btn-lg { padding: 12px 28px; font-size: 15px; }

/* Keep Bootstrap buttons compatible */
.btn-secondary { background: #64748b; border-color: #64748b; color: #fff; }
.btn-secondary:hover { background: #475569; border-color: #475569; color: #fff; }

/* ─── Forms ──────────────────────────────────────────────────────── */
.form-label {
    font-weight: 600;
    font-size: 13px;
    color: var(--text-secondary);
    margin-bottom: 6px;
    display: block;
}

.form-control, .form-select {
    font-family: 'Inter', sans-serif;
    font-size: 13.5px;
    color: var(--text-primary);
    background: var(--bg-card);
    border: 1.5px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 9px 12px;
    transition: var(--transition);
    width: 100%;
}

.form-control:focus, .form-select:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(14,165,233,.12);
    background: #fff;
}

.form-control::placeholder { color: var(--text-muted); }

.form-control.is-valid { border-color: var(--success); }
.form-control.is-invalid { border-color: var(--danger); }

.input-focused .form-label { color: var(--accent); }

.form-group { margin-bottom: 1.25rem; }

/* ─── Alerts ─────────────────────────────────────────────────────── */
.elisa-alert {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 14px 16px;
    border-radius: var(--radius-sm);
    font-size: 13.5px;
    font-weight: 500;
    margin-bottom: 1rem;
    border-left: 4px solid transparent;
    animation: slideInAlert 0.3s ease;
}

@keyframes slideInAlert {
    from { opacity: 0; transform: translateY(-8px); }
    to   { opacity: 1; transform: translateY(0); }
}

.elisa-alert--success { background: rgba(16,185,129,.1); border-color: var(--success); color: #065f46; }
.elisa-alert--error   { background: rgba(239,68,68,.1);  border-color: var(--danger);  color: #991b1b; }
.elisa-alert--warning { background: rgba(245,158,11,.1); border-color: var(--warning); color: #92400e; }
.elisa-alert--info    { background: rgba(99,102,241,.1); border-color: var(--info);    color: #3730a3; }

.elisa-alert__icon { font-size: 1rem; flex-shrink: 0; margin-top: 1px; }
.elisa-alert__body { flex: 1; }

/* ─── Toast ──────────────────────────────────────────────────────── */
.elisa-toast {
    display: flex;
    align-items: center;
    gap: 10px;
    background: var(--bg-sidebar);
    color: #fff;
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-lg);
    min-width: 260px;
    max-width: 360px;
    font-size: 13px;
    font-weight: 500;
    transform: translateX(120%);
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border-left: 3px solid var(--accent);
}

.elisa-toast--show { transform: translateX(0); }
.elisa-toast--success { border-color: var(--success); }
.elisa-toast--error   { border-color: var(--danger); }
.elisa-toast--warning { border-color: var(--warning); }

.elisa-toast__icon { font-size: 1rem; flex-shrink: 0; }
.elisa-toast__msg  { flex: 1; }
.elisa-toast__close {
    background: none;
    border: none;
    color: rgba(255,255,255,.6);
    font-size: 1.1rem;
    cursor: pointer;
    padding: 0 4px;
    line-height: 1;
    transition: var(--transition);
}
.elisa-toast__close:hover { color: #fff; }

/* ─── Page Header ───────────────────────────────────────────────── */
.page-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid var(--border);
}

.page-header h1, .page-header h2 {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--primary);
    display: flex;
    align-items: center;
    gap: 10px;
}

.breadcrumb-elisa {
    font-size: 12px;
    color: var(--text-muted);
    margin-top: 4px;
    display: flex;
    align-items: center;
    gap: 6px;
}

.breadcrumb-elisa a { color: var(--accent); text-decoration: none; }
.breadcrumb-elisa a:hover { text-decoration: underline; }

/* ─── Search Box ────────────────────────────────────────────────── */
.search-box {
    position: relative;
    max-width: 320px;
}

.search-box input {
    padding-left: 36px;
    border-radius: 20px;
    background: var(--bg-body);
    border: 1.5px solid var(--border);
}

.search-box input:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(14,165,233,.1);
}

.search-box .search-icon {
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    font-size: 13px;
}

/* ─── Modal ──────────────────────────────────────────────────────── */
.modal-content {
    border: none;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
}

.modal-header {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    color: #fff;
    border: none;
    padding: 1.1rem 1.5rem;
}

.modal-title {
    font-weight: 700;
    font-size: 1rem;
    display: flex;
    align-items: center;
    gap: 8px;
}

.modal-header .btn-close { filter: invert(1); opacity: 0.7; }
.modal-header .btn-close:hover { opacity: 1; }

.modal-body { padding: 1.5rem; }
.modal-footer {
    padding: 1rem 1.5rem;
    border-top: 1px solid var(--border);
    background: var(--bg-body);
}

/* ─── Login Page ─────────────────────────────────────────────────── */
.login-page {
    min-height: 100vh;
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 40%, var(--primary-light) 80%, var(--accent) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    position: relative;
    overflow: hidden;
}

.login-page::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle at 30% 70%, rgba(14,165,233,.2) 0%, transparent 50%),
                radial-gradient(circle at 70% 30%, rgba(99,102,241,.2) 0%, transparent 50%);
    animation: bgPulse 8s ease-in-out infinite alternate;
}

@keyframes bgPulse {
    from { transform: scale(1) rotate(0deg); }
    to   { transform: scale(1.05) rotate(3deg); }
}

.login-card {
    position: relative;
    z-index: 1;
    background: rgba(255,255,255,.97);
    border-radius: var(--radius-xl);
    padding: 2.5rem 2rem;
    width: 100%;
    max-width: 420px;
    box-shadow: 0 24px 80px rgba(0,0,0,.3);
    animation: loginSlide 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes loginSlide {
    from { opacity: 0; transform: translateY(30px); }
    to   { opacity: 1; transform: translateY(0); }
}

.login-logo {
    text-align: center;
    margin-bottom: 2rem;
}

.login-logo__icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
    border-radius: var(--radius);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    color: #fff;
    margin-bottom: 12px;
    box-shadow: 0 8px 24px rgba(30,58,95,.4);
}

.login-logo h1 {
    font-size: 1.8rem;
    font-weight: 900;
    color: var(--primary);
    letter-spacing: 2px;
}

.login-logo p {
    font-size: 12px;
    color: var(--text-muted);
    margin-top: 4px;
}

/* ─── Misc ───────────────────────────────────────────────────────── */
.text-primary-custom { color: var(--primary) !important; }
.text-accent { color: var(--accent) !important; }

.divider {
    border: none;
    border-top: 1px solid var(--border);
    margin: 1.5rem 0;
}

.empty-state {
    text-align: center;
    padding: 3rem 1rem;
    color: var(--text-muted);
}

.empty-state__icon {
    font-size: 3rem;
    opacity: 0.4;
    margin-bottom: 1rem;
}

.empty-state__title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

/* Loading spinner */
.spinner-border-sm { width: 14px; height: 14px; border-width: 2px; }

/* Row states */
.row-done td { color: var(--text-secondary); }
.row-pending td:first-child { border-left: 3px solid var(--warning); }

/* ─── Responsive ─────────────────────────────────────────────────── */
@media (max-width: 768px) {
    #layoutSidenav_nav { transform: translateX(-100%); }
    #layoutSidenav_content { padding-left: 0; }
    .sb-sidenav-toggled #layoutSidenav_nav { transform: translateX(0); }

    main { padding: 1rem; }

    .stat-card { padding: 1rem; }
    .stat-card__value { font-size: 1.5rem; }

    .page-header { flex-direction: column; align-items: flex-start; gap: 0.75rem; }
}

@media (max-width: 576px) {
    .login-card { padding: 1.5rem; }
    table { font-size: 12px; }
    thead th, tbody td { padding: 8px 10px; }
}