/* =====================================================
   INVESTIR TEK - Dark Mode UI
   ===================================================== */

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

/* --- Variáveis Dark --- */
:root {
    --bg-body:        #0b0e14;
    --bg-surface:     #111620;
    --bg-card:        #161c28;
    --bg-card-hover:  #1c2435;
    --bg-sidebar:     #0f1320;
    --bg-topbar:      #111620;
    --bg-input:       #161c28;
    --bg-modal:       #161c28;

    --border:         #1e2738;
    --border-focus:   #3b82f6;

    --text-primary:   #e8ecf4;
    --text-secondary: #8892a4;
    --text-muted:     #5a6478;
    --text-white:     #ffffff;

    --accent-blue:    #3b82f6;
    --accent-blue-d:  #2563eb;
    --accent-green:   #22c55e;
    --accent-green-d: #16a34a;
    --accent-red:     #ef4444;
    --accent-red-d:   #dc2626;
    --accent-yellow:  #f59e0b;
    --accent-purple:  #a855f7;
    --accent-cyan:    #06b6d4;
    --accent-orange:  #f97316;

    --shadow-sm:  0 1px 2px rgba(0,0,0,.4);
    --shadow-md:  0 4px 12px rgba(0,0,0,.5);
    --shadow-lg:  0 8px 24px rgba(0,0,0,.6);
    --shadow-glow-blue: 0 0 20px rgba(59,130,246,.15);

    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 14px;
    --radius-xl: 18px;

    --transition: all .2s ease;
    --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

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

body {
    font-family: var(--font);
    background-color: var(--bg-body);
    color: var(--text-primary);
    margin: 0;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
}

a { color: var(--accent-blue); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--accent-blue-d); }

::selection { background: var(--accent-blue); color: #fff; }

::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--bg-body); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }

/* =====================================================
   SIDEBAR
   ===================================================== */
.menu-lateral {
    position: fixed;
    top: 0; left: 0;
    width: 260px;
    height: 100vh;
    background: var(--bg-sidebar);
    border-right: 1px solid var(--border);
    z-index: 1040;
    display: flex;
    flex-direction: column;
    transition: transform .3s cubic-bezier(.4,0,.2,1);
    overflow-y: auto;
}

.menu-cabecalho {
    padding: 1.25rem 1.25rem 1rem;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    gap: .75rem;
}

.menu-cabecalho .logo-icon {
    width: 38px; height: 38px;
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.15rem;
    color: #fff;
    flex-shrink: 0;
}

.menu-cabecalho h5 {
    margin: 0;
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-white);
    letter-spacing: -.02em;
}

.menu-cabecalho small {
    font-size: .7rem;
    color: var(--text-muted);
    font-weight: 400;
    display: block;
    margin-top: 1px;
}

.menu-lateral .nav {
    padding: .75rem .75rem;
    flex: 1;
}

.menu-lateral .nav-item { margin-bottom: 2px; }

.menu-lateral .nav-link {
    color: var(--text-secondary);
    padding: .65rem .85rem;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    gap: .7rem;
    font-size: .88rem;
    font-weight: 500;
    transition: var(--transition);
    border: 1px solid transparent;
}

.menu-lateral .nav-link i {
    font-size: 1.15rem;
    width: 1.4rem;
    text-align: center;
    flex-shrink: 0;
}

.menu-lateral .nav-link:hover {
    color: var(--text-primary);
    background: rgba(59,130,246,.08);
    border-color: rgba(59,130,246,.12);
}

.menu-lateral .nav-link.active {
    color: var(--text-white);
    background: linear-gradient(135deg, rgba(59,130,246,.15), rgba(168,85,247,.1));
    border-color: rgba(59,130,246,.25);
    box-shadow: var(--shadow-glow-blue);
}

.menu-lateral .nav-link.active i {
    color: var(--accent-blue);
}

.menu-lateral .nav-divider {
    height: 1px;
    background: var(--border);
    margin: .5rem .85rem;
}

.menu-lateral .nav-link.logout-link {
    color: var(--accent-red);
    margin-top: .5rem;
}
.menu-lateral .nav-link.logout-link:hover {
    background: rgba(239,68,68,.1);
    border-color: rgba(239,68,68,.2);
    color: var(--accent-red);
}

/* =====================================================
   MAIN CONTENT
   ===================================================== */
.conteudo-principal {
    margin-left: 260px;
    min-height: 100vh;
    width: calc(100% - 260px);
    display: flex;
    flex-direction: column;
}

/* =====================================================
   TOPBAR
   ===================================================== */
.topbar {
    background: var(--bg-topbar);
    border-bottom: 1px solid var(--border);
    padding: .75rem 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: sticky;
    top: 0;
    z-index: 1020;
    backdrop-filter: blur(12px);
}

.topbar-user {
    display: flex;
    align-items: center;
    gap: .6rem;
    font-size: .88rem;
    color: var(--text-secondary);
}

.topbar-user .avatar {
    width: 34px; height: 34px;
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: .85rem;
    font-weight: 600;
}

#btnMenu {
    background: none;
    border: 1px solid var(--border);
    color: var(--text-primary);
    border-radius: var(--radius-sm);
    padding: .4rem .6rem;
    cursor: pointer;
    transition: var(--transition);
}
#btnMenu:hover {
    background: var(--bg-card);
    border-color: var(--text-muted);
}

/* =====================================================
   CARDS
   ===================================================== */
.card-resumo {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.card-resumo::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--accent-blue), var(--accent-purple));
    opacity: 0;
    transition: opacity .3s;
}

.card-resumo:hover {
    border-color: rgba(59,130,246,.3);
    transform: translateY(-3px);
    box-shadow: var(--shadow-glow-blue);
}

.card-resumo:hover::before { opacity: 1; }

.card-resumo .card-body {
    padding: 1.35rem;
    text-align: center;
}

.card-resumo .card-icon {
    width: 48px; height: 48px;
    border-radius: var(--radius-md);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 1.35rem;
    margin-bottom: .75rem;
}

.card-resumo .card-icon.blue   { background: rgba(59,130,246,.12); color: var(--accent-blue); }
.card-resumo .card-icon.green  { background: rgba(34,197,94,.12);  color: var(--accent-green); }
.card-resumo .card-icon.yellow { background: rgba(245,158,11,.12); color: var(--accent-yellow); }
.card-resumo .card-icon.purple { background: rgba(168,85,247,.12); color: var(--accent-purple); }
.card-resumo .card-icon.cyan   { background: rgba(6,182,212,.12);  color: var(--accent-cyan); }
.card-resumo .card-icon.red    { background: rgba(239,68,68,.12);  color: var(--accent-red); }
.card-resumo .card-icon.orange { background: rgba(249,115,22,.12); color: var(--accent-orange); }

.card-resumo .card-title {
    font-size: .78rem;
    color: var(--text-muted);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: .04em;
    margin-bottom: .35rem;
}

.card-resumo .card-valor {
    font-size: 1.65rem;
    font-weight: 700;
    color: var(--text-white);
    letter-spacing: -.02em;
}

.card-resumo a.stretched-link { z-index: 1; }

/* =====================================================
   TABLES
   ===================================================== */
.table-container {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.table {
    margin-bottom: 0;
    color: var(--text-primary);
    background: transparent;
}

.table > :not(caption) > * > * {
    background-color: transparent;
    color: var(--text-primary);
    border-bottom-color: var(--border);
    padding: .8rem 1rem;
    font-size: .88rem;
    vertical-align: middle;
}

.table thead th {
    background: var(--bg-surface) !important;
    color: var(--text-muted) !important;
    font-weight: 600;
    font-size: .78rem;
    text-transform: uppercase;
    letter-spacing: .05em;
    border-bottom: 1px solid var(--border) !important;
    white-space: nowrap;
}

.table tbody tr { transition: var(--transition); }

.table tbody tr:hover {
    background: rgba(59,130,246,.04) !important;
}

.table-striped tbody tr:nth-of-type(odd) {
    background: rgba(255,255,255,.015) !important;
}

.table-responsive {
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
}

/* =====================================================
   BUTTONS
   ===================================================== */
.btn {
    font-family: var(--font);
    font-weight: 500;
    font-size: .88rem;
    border-radius: var(--radius-md);
    padding: .55rem 1.1rem;
    transition: var(--transition);
    border: 1px solid transparent;
    display: inline-flex;
    align-items: center;
    gap: .45rem;
}

.btn-primary {
    background: var(--accent-blue);
    border-color: var(--accent-blue);
    color: #fff;
}
.btn-primary:hover {
    background: var(--accent-blue-d);
    border-color: var(--accent-blue-d);
    box-shadow: 0 0 16px rgba(59,130,246,.3);
    transform: translateY(-1px);
}

.btn-success {
    background: var(--accent-green);
    border-color: var(--accent-green);
    color: #fff;
}
.btn-success:hover {
    background: var(--accent-green-d);
    border-color: var(--accent-green-d);
    box-shadow: 0 0 16px rgba(34,197,94,.3);
}

.btn-danger {
    background: var(--accent-red);
    border-color: var(--accent-red);
    color: #fff;
}
.btn-danger:hover {
    background: var(--accent-red-d);
    border-color: var(--accent-red-d);
    box-shadow: 0 0 16px rgba(239,68,68,.3);
}

.btn-outline-primary {
    background: transparent;
    border-color: var(--accent-blue);
    color: var(--accent-blue);
}
.btn-outline-primary:hover {
    background: var(--accent-blue);
    color: #fff;
}

.btn-outline-secondary {
    background: transparent;
    border-color: var(--border);
    color: var(--text-secondary);
}
.btn-outline-secondary:hover {
    background: var(--bg-card);
    border-color: var(--text-muted);
    color: var(--text-primary);
}

.btn-outline-success {
    background: transparent;
    border-color: var(--accent-green);
    color: var(--accent-green);
}
.btn-outline-success:hover {
    background: var(--accent-green);
    color: #fff;
}

.btn-outline-info {
    background: transparent;
    border-color: var(--accent-cyan);
    color: var(--accent-cyan);
}
.btn-outline-info:hover {
    background: var(--accent-cyan);
    color: #fff;
}

.btn-outline-danger {
    background: transparent;
    border-color: var(--accent-red);
    color: var(--accent-red);
}
.btn-outline-danger:hover {
    background: var(--accent-red);
    color: #fff;
}

/* =====================================================
   FORMS
   ===================================================== */
.form-control, .form-select {
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-family: var(--font);
    font-size: .88rem;
    padding: .6rem .85rem;
    transition: var(--transition);
}

.form-control:focus, .form-select:focus {
    background: var(--bg-input);
    border-color: var(--accent-blue);
    color: var(--text-primary);
    box-shadow: 0 0 0 3px rgba(59,130,246,.15);
}

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

.form-label {
    font-size: .82rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: .4rem;
    letter-spacing: .02em;
}

.form-text, .form-check-label {
    color: var(--text-muted);
    font-size: .8rem;
}

.is-invalid { border-color: var(--accent-red) !important; }
.invalid-feedback { color: var(--accent-red); font-size: .8rem; }

/* =====================================================
   BADGES
   ===================================================== */
.badge {
    font-weight: 600;
    font-size: .72rem;
    padding: .35em .65em;
    border-radius: var(--radius-sm);
    letter-spacing: .02em;
}

.badge bg-success  { background: rgba(34,197,94,.15)  !important; color: var(--accent-green)  !important; }
.badge bg-danger   { background: rgba(239,68,68,.15)  !important; color: var(--accent-red)    !important; }
.badge bg-warning  { background: rgba(245,158,11,.15) !important; color: var(--accent-yellow) !important; }
.badge bg-info     { background: rgba(6,182,212,.15)  !important; color: var(--accent-cyan)   !important; }
.badge bg-primary  { background: rgba(59,130,246,.15) !important; color: var(--accent-blue)   !important; }
.badge bg-secondary { background: rgba(90,100,120,.2)  !important; color: var(--text-secondary) !important; }

/* =====================================================
   ALERTS
   ===================================================== */
.alert {
    border-radius: var(--radius-md);
    border: 1px solid transparent;
    font-size: .88rem;
    padding: .85rem 1rem;
}

.alert-success {
    background: rgba(34,197,94,.1);
    border-color: rgba(34,197,94,.25);
    color: var(--accent-green);
}

.alert-danger {
    background: rgba(239,68,68,.1);
    border-color: rgba(239,68,68,.25);
    color: var(--accent-red);
}

.alert-warning {
    background: rgba(245,158,11,.1);
    border-color: rgba(245,158,11,.25);
    color: var(--accent-yellow);
}

.alert-info {
    background: rgba(6,182,212,.1);
    border-color: rgba(6,182,212,.25);
    color: var(--accent-cyan);
}

/* =====================================================
   MODAL
   ===================================================== */
.modal-content {
    background: var(--bg-modal);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    color: var(--text-primary);
}

.modal-header {
    background: var(--bg-surface);
    border-bottom: 1px solid var(--border);
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
    padding: 1rem 1.25rem;
}

.modal-header .modal-title { color: var(--text-white); font-weight: 600; }

.modal-header .btn-close { filter: invert(1) grayscale(100%) brightness(200%); }

.modal-body { padding: 1.25rem; color: var(--text-secondary); }

.modal-footer {
    border-top: 1px solid var(--border);
    padding: .85rem 1.25rem;
}

/* =====================================================
   PAGINATION
   ===================================================== */
.pagination .page-link {
    background: var(--bg-card);
    border-color: var(--border);
    color: var(--text-secondary);
    font-size: .85rem;
    border-radius: var(--radius-sm);
    margin: 0 2px;
    transition: var(--transition);
}

.pagination .page-link:hover {
    background: var(--bg-card-hover);
    border-color: var(--accent-blue);
    color: var(--accent-blue);
}

.pagination .page-item.active .page-link {
    background: var(--accent-blue);
    border-color: var(--accent-blue);
    color: #fff;
}

/* =====================================================
   LOGIN / CADASTRO
   ===================================================== */
.login-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-body);
    position: relative;
    overflow: hidden;
}

.login-container::before {
    content: '';
    position: absolute;
    width: 600px; height: 600px;
    background: radial-gradient(circle, rgba(59,130,246,.08) 0%, transparent 70%);
    top: -200px; right: -200px;
    border-radius: 50%;
}

.login-container::after {
    content: '';
    position: absolute;
    width: 500px; height: 500px;
    background: radial-gradient(circle, rgba(168,85,247,.06) 0%, transparent 70%);
    bottom: -150px; left: -150px;
    border-radius: 50%;
}

.login-card {
    width: 100%;
    max-width: 420px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    position: relative;
    z-index: 1;
}

.login-card .card-body {
    padding: 2.5rem 2rem;
}

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

.login-card .logo-icon {
    width: 64px; height: 64px;
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
    border-radius: var(--radius-lg);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
    color: #fff;
    margin-bottom: 1rem;
    box-shadow: 0 8px 24px rgba(59,130,246,.25);
}

.login-card .logo h3 {
    color: var(--text-white);
    font-weight: 800;
    font-size: 1.5rem;
    margin: 0;
    letter-spacing: -.03em;
}

.login-card .logo p {
    color: var(--text-muted);
    font-size: .88rem;
    margin: .35rem 0 0;
}

/* =====================================================
   UTILITY / COLORS
   ===================================================== */
.lucro   { color: var(--accent-green) !important; font-weight: 600; }
.prejuizo { color: var(--accent-red) !important;   font-weight: 600; }

.vencido { color: var(--accent-red) !important;    font-weight: 600; }
.proximo-vencimento { color: var(--accent-yellow) !important; font-weight: 600; }

.text-muted { color: var(--text-muted) !important; }
.text-primary { color: var(--accent-blue) !important; }

.bg-dark { background: var(--bg-surface) !important; }

/* Card welcome */
.card-welcome {
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
    border: none;
    border-radius: var(--radius-lg);
    color: #fff;
}

.card-welcome .card-body { padding: 1.5rem 2rem; }
.card-welcome h4 { font-weight: 700; margin-bottom: .25rem; }
.card-welcome p { opacity: .85; margin: 0; font-size: .92rem; }

/* Quick access buttons */
.btn-quick {
    background: var(--bg-surface);
    border: 1px solid var(--border);
    color: var(--text-secondary);
    border-radius: var(--radius-md);
    padding: .75rem 1rem;
    font-size: .88rem;
    font-weight: 500;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: .5rem;
    text-decoration: none;
}

.btn-quick:hover {
    background: var(--bg-card-hover);
    border-color: var(--accent-blue);
    color: var(--accent-blue);
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow-blue);
}

.btn-quick i { font-size: 1.1rem; }

/* Empty state */
.estado-vazio {
    text-align: center;
    padding: 3rem 1.5rem;
    color: var(--text-muted);
}
.estado-vazio i {
    font-size: 3.5rem;
    color: var(--border);
    margin-bottom: 1rem;
    display: block;
}
.estado-vazio h5 { color: var(--text-secondary); font-weight: 600; }
.estado-vazio p { font-size: .88rem; }

/* =====================================================
   RESPONSIVE
   ===================================================== */
.menu-overlay {
    display: none;
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    background: rgba(0,0,0,.6);
    backdrop-filter: blur(4px);
    z-index: 1035;
}
.menu-overlay.active { display: block; }

@media (max-width: 768px) {
    .menu-lateral { transform: translateX(-100%); width: 260px; }
    .menu-lateral.active { transform: translateX(0); }
    .conteudo-principal { margin-left: 0; width: 100%; }
    .card-resumo .card-valor { font-size: 1.25rem; }
    .login-card .card-body { padding: 2rem 1.5rem; }
}

/* =====================================================
   ANIMATIONS
   ===================================================== */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(8px); }
    to   { opacity: 1; transform: translateY(0); }
}

.alert { animation: fadeIn .3s ease; }

.card-resumo { animation: fadeIn .4s ease backwards; }
.card-resumo:nth-child(1) { animation-delay: .05s; }
.card-resumo:nth-child(2) { animation-delay: .1s; }
.card-resumo:nth-child(3) { animation-delay: .15s; }
.card-resumo:nth-child(4) { animation-delay: .2s; }
.card-resumo:nth-child(5) { animation-delay: .25s; }