feat: Implementa sistema completo de modo escuro

- Adiciona ThemeProvider com next-themes para controle de tema
- Implementa componente SimpleThemeToggle com ícones sol/lua
- Configura CSS variables completas para light/dark modes no globals.css
- Padroniza todas as páginas de autenticação (login, login-admin, login-paciente)
- Padroniza todos os módulos principais (dashboard, pacientes, doutores, consultas, calendar, configuração)
- Padroniza completamente área profissional com todas as seções:
  * Calendário e agendamentos
  * Busca e gestão de pacientes
  * Prontuários médicos completos
  * Comunicação e relatórios
  * Seções de exames (solicitados, resultados, diagnósticos, prescrições, evolução, anexos)
- Atualiza componentes UI (input, select, textarea) com bordas visíveis
- Implementa suporte dark mode em tooltips, badges de status e mensagens
- Garante acessibilidade e consistência visual em ambos os modos
- Mantém funcionalidades existentes sem breaking changes

Todos os elementos agora respondem adequadamente ao toggle de tema,
proporcionando experiência de usuário consistente e acessível.

susconecta/app/(main-routes)/calendar/page.tsx

@@ -85,7 +85,7 @@ export default function AgendamentoPage() {
   };
 
   return (
-    <div className="flex flex-row">
+    <div className="flex flex-row bg-background">
       <div className="flex w-full flex-col">
         <div className="flex w-full flex-col gap-10 p-6">
           <div className="flex flex-row justify-between items-center">
@@ -122,7 +122,7 @@ export default function AgendamentoPage() {
               <div className="flex flex-row">
                 <Button
                   variant={"outline"}
-                  className="bg-gray-100 hover:bg-gray-200 hover:text-foreground rounded-l-[100px] rounded-r-[0px]"
+                  className="bg-muted hover:bg-muted/80 hover:text-foreground rounded-l-[100px] rounded-r-[0px]"
                   onClick={() => setActiveTab("calendar")}
                 >
                   Calendário
@@ -130,7 +130,7 @@ export default function AgendamentoPage() {
 
                 <Button
                   variant={"outline"}
-                  className="bg-gray-100 hover:bg-gray-200 hover:text-foreground rounded-r-[100px] rounded-l-[0px]"
+                  className="bg-muted hover:bg-muted/80 hover:text-foreground rounded-r-[100px] rounded-l-[0px]"
                   onClick={() => setActiveTab("espera")}
                 >
                   Lista de espera

susconecta/app/(main-routes)/configuracao/page.tsx

@@ -45,12 +45,12 @@ export default function ConfiguracaoPage() {
   ]
 
   return (
-    <div className="p-6 space-y-6">
+    <div className="p-6 space-y-6 bg-background">
       {/* título */}
-      <h1 className="text-2xl font-bold">Configurações</h1>
+      <h1 className="text-2xl font-bold text-foreground">Configurações</h1>
 
       {/* introdução */}
-      <p className="text-gray-600">
+      <p className="text-muted-foreground">
         Ajuste os principais parâmetros do sistema. Escolha uma das seções abaixo
         para configurar horários, mensagens, notificações internas, permissões de usuários
         e regras de segurança da clínica.
@@ -66,7 +66,7 @@ export default function ConfiguracaoPage() {
                 <CardTitle>{item.title}</CardTitle>
               </CardHeader>
               <CardContent>
-                <p className="text-sm text-gray-600">{item.desc}</p>
+                <p className="text-sm text-muted-foreground">{item.desc}</p>
               </CardContent>
             </Card>
           </Link>

susconecta/app/(main-routes)/consultas/page.tsx

@@ -145,7 +145,7 @@ export default function ConsultasPage() {
 
   if (showForm && editingAppointment) {
     return (
-        <div className="space-y-6 p-6">
+        <div className="space-y-6 p-6 bg-background">
             <div className="flex items-center gap-4">
                 <Button type="button" variant="ghost" size="icon" onClick={handleCancel}> 
                     <ArrowLeft className="h-4 w-4" />
@@ -162,7 +162,7 @@ export default function ConsultasPage() {
   }
 
   return (
-    <div className="space-y-6 p-6">
+    <div className="space-y-6 p-6 bg-background">
       <div className="flex items-center justify-between gap-4 flex-wrap">
         <div>
           <h1 className="text-2xl font-bold">Gerenciamento de Consultas</h1>

susconecta/app/(main-routes)/dashboard/page.tsx

@@ -1,7 +1,7 @@
 export default function DashboardPage() {
   return (
     <>
-      <div className="space-y-6 p-6">
+      <div className="space-y-6 p-6 bg-background">
         <div>
           <h1 className="text-2xl font-bold text-foreground">Dashboard</h1>
           <p className="text-muted-foreground">

susconecta/app/(main-routes)/doutores/page.tsx

@@ -287,7 +287,7 @@ export default function DoutoresPage() {
 
   if (showForm) {
     return (
-      <div className="space-y-6 p-6">
+      <div className="space-y-6 p-6 bg-background">
         <div className="flex items-center gap-4">
           <Button variant="ghost" size="icon" onClick={() => setShowForm(false)}>
             <ArrowLeft className="h-4 w-4" />
@@ -307,7 +307,7 @@ export default function DoutoresPage() {
   }
 
   return (
-    <div className="space-y-6 p-6">
+    <div className="space-y-6 p-6 bg-background">
       <div className="flex items-center justify-between gap-4 flex-wrap">
         <div>
           <h1 className="text-2xl font-bold">Médicos</h1>

susconecta/app/(main-routes)/pacientes/page.tsx

@@ -166,7 +166,7 @@ export default function PacientesPage() {
 
   if (showForm) {
     return (
-      <div className="space-y-6 p-6">
+      <div className="space-y-6 p-6 bg-background">
         <div className="flex items-center gap-4">
           <Button variant="ghost" onClick={() => setShowForm(false)}>
             <ArrowLeft className="h-4 w-4" />
@@ -186,7 +186,7 @@ export default function PacientesPage() {
   }
 
   return (
-    <div className="space-y-6 p-6">
+    <div className="space-y-6 p-6 bg-background">
       <div className="flex items-center justify-between gap-4 flex-wrap">
         <div>
           <h1 className="text-2xl font-bold">Pacientes</h1>

susconecta/app/globals.css

@@ -39,6 +39,41 @@
   --sidebar-ring: var(--color-blue-500);
 }
 
+.dark {
+  --background: #0f172a;
+  --foreground: #cbd5e1;
+  --card: #1e293b;
+  --card-foreground: #e2e8f0;
+  --popover: #1e293b;
+  --popover-foreground: #cbd5e1;
+  --primary: var(--color-blue-500);
+  --primary-foreground: #ffffff;
+  --secondary: #334155;
+  --secondary-foreground: #cbd5e1;
+  --muted: #334155;
+  --muted-foreground: #94a3b8;
+  --accent: #0891b2;
+  --accent-foreground: #ffffff;
+  --destructive: #dc2626;
+  --destructive-foreground: #ffffff;
+  --border: #334155;
+  --input: #334155;
+  --ring: var(--color-blue-500);
+  --chart-1: #0891b2;
+  --chart-2: #0f766e;
+  --chart-3: #f59e0b;
+  --chart-4: #dc2626;
+  --chart-5: #94a3b8;
+  --sidebar: #1e293b;
+  --sidebar-foreground: #cbd5e1;
+  --sidebar-primary: var(--color-blue-500);
+  --sidebar-primary-foreground: #ffffff;
+  --sidebar-accent: var(--color-blue-500);
+  --sidebar-accent-foreground: #ffffff;
+  --sidebar-border: #334155;
+  --sidebar-ring: var(--color-blue-500);
+}
+
 @theme inline {
   --font-sans: var(--font-geist-sans);
   --font-mono: var(--font-geist-mono);

susconecta/app/layout.tsx

@@ -1,6 +1,7 @@
 import type React from "react"
 import type { Metadata } from "next"
 import { AuthProvider } from "@/hooks/useAuth"
+import { ThemeProvider } from "@/components/theme-provider"
 import "./globals.css"
 
 export const metadata: Metadata = {
@@ -17,11 +18,13 @@ export default function RootLayout({
   children: React.ReactNode
 }) {
   return (
-    <html lang="pt-BR" className="antialiased">
+    <html lang="pt-BR" className="antialiased" suppressHydrationWarning>
       <body style={{ fontFamily: "var(--font-geist-sans)" }}>
-        <AuthProvider>
-          {children}
-        </AuthProvider>
+        <ThemeProvider attribute="class" defaultTheme="light" enableSystem={false}>
+          <AuthProvider>
+            {children}
+          </AuthProvider>
+        </ThemeProvider>
       </body>
     </html>
   )

susconecta/app/login-admin/page.tsx

@@ -45,13 +45,13 @@ export default function LoginAdminPage() {
   }
 
   return (
-    <div className="min-h-screen flex items-center justify-center bg-gray-50 py-12 px-4 sm:px-6 lg:px-8">
+    <div className="min-h-screen flex items-center justify-center bg-background py-12 px-4 sm:px-6 lg:px-8">
       <div className="max-w-md w-full space-y-8">
         <div className="text-center">
-          <h2 className="mt-6 text-3xl font-extrabold text-gray-900">
+          <h2 className="mt-6 text-3xl font-extrabold text-foreground">
             Login Administrador de Clínica
           </h2>
-          <p className="mt-2 text-sm text-gray-600">
+          <p className="mt-2 text-sm text-muted-foreground">
             Entre com suas credenciais para acessar o sistema administrativo
           </p>
         </div>
@@ -63,7 +63,7 @@ export default function LoginAdminPage() {
           <CardContent>
             <form onSubmit={handleLogin} className="space-y-6">
               <div>
-                <label htmlFor="email" className="block text-sm font-medium text-gray-700">
+                <label htmlFor="email" className="block text-sm font-medium text-foreground">
                   Email
                 </label>
                 <Input
@@ -79,7 +79,7 @@ export default function LoginAdminPage() {
               </div>
               
               <div>
-                <label htmlFor="password" className="block text-sm font-medium text-gray-700">
+                <label htmlFor="password" className="block text-sm font-medium text-foreground">
                   Senha
                 </label>
                 <Input

susconecta/app/login-paciente/page.tsx

@@ -43,13 +43,13 @@ export default function LoginPacientePage() {
   }
 
   return (
-    <div className="min-h-screen flex items-center justify-center bg-gray-50 py-12 px-4 sm:px-6 lg:px-8">
+    <div className="min-h-screen flex items-center justify-center bg-background py-12 px-4 sm:px-6 lg:px-8">
       <div className="max-w-md w-full space-y-8">
         <div className="text-center">
-          <h2 className="mt-6 text-3xl font-extrabold text-gray-900">
+          <h2 className="mt-6 text-3xl font-extrabold text-foreground">
             Portal do Paciente
           </h2>
-          <p className="mt-2 text-sm text-gray-600">
+          <p className="mt-2 text-sm text-muted-foreground">
             Acesse sua área pessoal e gerencie suas consultas
           </p>
         </div>
@@ -61,7 +61,7 @@ export default function LoginPacientePage() {
           <CardContent>
             <form onSubmit={handleLogin} className="space-y-6">
               <div>
-                <label htmlFor="email" className="block text-sm font-medium text-gray-700">
+                <label htmlFor="email" className="block text-sm font-medium text-foreground">
                   Email
                 </label>
                 <Input
@@ -77,7 +77,7 @@ export default function LoginPacientePage() {
               </div>
               
               <div>
-                <label htmlFor="password" className="block text-sm font-medium text-gray-700">
+                <label htmlFor="password" className="block text-sm font-medium text-foreground">
                   Senha
                 </label>
                 <Input

susconecta/app/login/page.tsx

@@ -45,13 +45,13 @@ export default function LoginPage() {
   }
 
   return (
-    <div className="min-h-screen flex items-center justify-center bg-gray-50 py-12 px-4 sm:px-6 lg:px-8">
+    <div className="min-h-screen flex items-center justify-center bg-background py-12 px-4 sm:px-6 lg:px-8">
       <div className="max-w-md w-full space-y-8">
         <div className="text-center">
-          <h2 className="mt-6 text-3xl font-extrabold text-gray-900">
+          <h2 className="mt-6 text-3xl font-extrabold text-foreground">
             Login Profissional de Saúde
           </h2>
-          <p className="mt-2 text-sm text-gray-600">
+          <p className="mt-2 text-sm text-muted-foreground">
             Entre com suas credenciais para acessar o sistema
           </p>
         </div>
@@ -63,7 +63,7 @@ export default function LoginPage() {
           <CardContent>
             <form onSubmit={handleLogin} className="space-y-6">
               <div>
-                <label htmlFor="email" className="block text-sm font-medium text-gray-700">
+                <label htmlFor="email" className="block text-sm font-medium text-foreground">
                   Email
                 </label>
                 <Input
@@ -79,7 +79,7 @@ export default function LoginPage() {
               </div>
               
               <div>
-                <label htmlFor="password" className="block text-sm font-medium text-gray-700">
+                <label htmlFor="password" className="block text-sm font-medium text-foreground">
                   Senha
                 </label>
                 <Input

susconecta/components/header.tsx

@@ -5,6 +5,7 @@ import Link from "next/link";
 import { Button } from "@/components/ui/button";
 import { Menu, X } from "lucide-react";
 import { usePathname } from "next/navigation";
+import { SimpleThemeToggle } from "@/components/simple-theme-toggle";
 
 export function Header() {
   const [isMenuOpen, setIsMenuOpen] = useState(false);
@@ -43,6 +44,7 @@ export function Header() {
 
           {}
           <div className="hidden md:flex items-center space-x-3">
+            <SimpleThemeToggle />
             <Button
               variant="outline"
               className="text-primary border-primary hover:bg-primary hover:text-primary-foreground bg-transparent"
@@ -92,6 +94,7 @@ export function Header() {
                 Sobre
               </Link>
               <div className="flex flex-col space-y-2 pt-4">
+                <SimpleThemeToggle />
                 <Button
                   variant="outline"
                   className="text-primary border-primary hover:bg-primary hover:text-primary-foreground bg-transparent"

susconecta/components/simple-theme-toggle.tsx

@@ -0,0 +1,22 @@
+"use client"
+
+import * as React from "react"
+import { Moon, Sun } from "lucide-react"
+import { useTheme } from "next-themes"
+import { Button } from "@/components/ui/button"
+
+export function SimpleThemeToggle() {
+  const { theme, setTheme } = useTheme()
+  
+  const toggleTheme = () => {
+    setTheme(theme === "dark" ? "light" : "dark")
+  }
+
+  return (
+    <Button variant="outline" size="icon" onClick={toggleTheme}>
+      <Sun className="h-[1.2rem] w-[1.2rem] rotate-0 scale-100 transition-all dark:-rotate-90 dark:scale-0" />
+      <Moon className="absolute h-[1.2rem] w-[1.2rem] rotate-90 scale-0 transition-all dark:rotate-0 dark:scale-100" />
+      <span className="sr-only">Alternar tema</span>
+    </Button>
+  )
+}

susconecta/components/theme-toggle.tsx

@@ -0,0 +1,37 @@
+"use client"
+
+import * as React from "react"
+import { Moon, Sun } from "lucide-react"
+import { useTheme } from "next-themes"
+
+import { Button } from "@/components/ui/button"
+import {
+  DropdownMenu,
+  DropdownMenuContent,
+  DropdownMenuItem,
+  DropdownMenuTrigger,
+} from "@/components/ui/dropdown-menu"
+
+export function ThemeToggle() {
+  const { setTheme } = useTheme()
+
+  return (
+    <DropdownMenu>
+      <DropdownMenuTrigger asChild>
+        <Button variant="outline" size="icon">
+          <Sun className="h-[1.2rem] w-[1.2rem] rotate-0 scale-100 transition-all dark:-rotate-90 dark:scale-0" />
+          <Moon className="absolute h-[1.2rem] w-[1.2rem] rotate-90 scale-0 transition-all dark:rotate-0 dark:scale-100" />
+          <span className="sr-only">Alternar tema</span>
+        </Button>
+      </DropdownMenuTrigger>
+      <DropdownMenuContent align="end">
+        <DropdownMenuItem onClick={() => setTheme("light")}>
+          Claro
+        </DropdownMenuItem>
+        <DropdownMenuItem onClick={() => setTheme("dark")}>
+          Escuro
+        </DropdownMenuItem>
+      </DropdownMenuContent>
+    </DropdownMenu>
+  )
+}

susconecta/components/ui/input.tsx

@@ -8,9 +8,11 @@ function Input({ className, type, ...props }: React.ComponentProps<"input">) {
       type={type}
       data-slot="input"
       className={cn(
-        "file:text-foreground placeholder:text-muted-foreground selection:bg-primary selection:text-primary-foreground dark:bg-input/30 border-input flex h-9 w-full min-w-0 rounded-md border bg-transparent px-3 py-1 text-base shadow-xs transition-[color,box-shadow] outline-none file:inline-flex file:h-7 file:border-0 file:bg-transparent file:text-sm file:font-medium disabled:pointer-events-none disabled:cursor-not-allowed disabled:opacity-50 md:text-sm",
-        "focus-visible:border-ring focus-visible:ring-ring/50 focus-visible:ring-[3px]",
-        "aria-invalid:ring-destructive/20 dark:aria-invalid:ring-destructive/40 aria-invalid:border-destructive",
+        "file:text-foreground placeholder:text-muted-foreground selection:bg-primary selection:text-primary-foreground dark:bg-input/30 flex h-9 w-full min-w-0 rounded-md bg-transparent px-3 py-1 text-base shadow-xs transition-[color,box-shadow] outline-none file:inline-flex file:h-7 file:border-0 file:bg-transparent file:text-sm file:font-medium disabled:pointer-events-none disabled:cursor-not-allowed disabled:opacity-50 md:text-sm",
+        "border-2 border-gray-300 dark:border-gray-600",
+        "focus-visible:border-primary focus-visible:ring-primary/20 focus-visible:ring-2",
+        "hover:border-gray-400 dark:hover:border-gray-500",
+        "aria-invalid:ring-destructive/20 dark:aria-invalid:ring-destructive/40 aria-invalid:border-destructive aria-invalid:border-2",
         className
       )}
       {...props}

susconecta/components/ui/select.tsx

@@ -37,7 +37,11 @@ function SelectTrigger({
       data-slot="select-trigger"
       data-size={size}
       className={cn(
-        "border-input data-[placeholder]:text-muted-foreground [&_svg:not([class*='text-'])]:text-muted-foreground focus-visible:border-ring focus-visible:ring-ring/50 aria-invalid:ring-destructive/20 dark:aria-invalid:ring-destructive/40 aria-invalid:border-destructive dark:bg-input/30 dark:hover:bg-input/50 flex w-fit items-center justify-between gap-2 rounded-md border bg-transparent px-3 py-2 text-sm whitespace-nowrap shadow-xs transition-[color,box-shadow] outline-none focus-visible:ring-[3px] disabled:cursor-not-allowed disabled:opacity-50 data-[size=default]:h-9 data-[size=sm]:h-8 *:data-[slot=select-value]:line-clamp-1 *:data-[slot=select-value]:flex *:data-[slot=select-value]:items-center *:data-[slot=select-value]:gap-2 [&_svg]:pointer-events-none [&_svg]:shrink-0 [&_svg:not([class*='size-'])]:size-4",
+        "data-[placeholder]:text-muted-foreground [&_svg:not([class*='text-'])]:text-muted-foreground dark:bg-input/30 dark:hover:bg-input/50 flex w-fit items-center justify-between gap-2 rounded-md bg-transparent px-3 py-2 text-sm whitespace-nowrap shadow-xs transition-[color,box-shadow] outline-none disabled:cursor-not-allowed disabled:opacity-50 data-[size=default]:h-9 data-[size=sm]:h-8 *:data-[slot=select-value]:line-clamp-1 *:data-[slot=select-value]:flex *:data-[slot=select-value]:items-center *:data-[slot=select-value]:gap-2 [&_svg]:pointer-events-none [&_svg]:shrink-0 [&_svg:not([class*='size-'])]:size-4",
+        "border-2 border-gray-300 dark:border-gray-600",
+        "focus-visible:border-primary focus-visible:ring-primary/20 focus-visible:ring-2",
+        "hover:border-gray-400 dark:hover:border-gray-500",
+        "aria-invalid:ring-destructive/20 dark:aria-invalid:ring-destructive/40 aria-invalid:border-destructive aria-invalid:border-2",
         className
       )}
       {...props}

susconecta/components/ui/textarea.tsx

@@ -7,7 +7,11 @@ function Textarea({ className, ...props }: React.ComponentProps<"textarea">) {
     <textarea
       data-slot="textarea"
       className={cn(
-        "border-input placeholder:text-muted-foreground focus-visible:border-ring focus-visible:ring-ring/50 aria-invalid:ring-destructive/20 dark:aria-invalid:ring-destructive/40 aria-invalid:border-destructive dark:bg-input/30 flex field-sizing-content min-h-16 w-full rounded-md border bg-transparent px-3 py-2 text-base shadow-xs transition-[color,box-shadow] outline-none focus-visible:ring-[3px] disabled:cursor-not-allowed disabled:opacity-50 md:text-sm",
+        "placeholder:text-muted-foreground dark:bg-input/30 flex field-sizing-content min-h-16 w-full rounded-md bg-transparent px-3 py-2 text-base shadow-xs transition-[color,box-shadow] outline-none disabled:cursor-not-allowed disabled:opacity-50 md:text-sm",
+        "border-2 border-gray-300 dark:border-gray-600",
+        "focus-visible:border-primary focus-visible:ring-primary/20 focus-visible:ring-2",
+        "hover:border-gray-400 dark:hover:border-gray-500",
+        "aria-invalid:ring-destructive/20 dark:aria-invalid:ring-destructive/40 aria-invalid:border-destructive aria-invalid:border-2",
         className
       )}
       {...props}