/* Variáveis para o MODO CLARO (Padrão) */
/* Desenvolvido Por Bruno Otávio Jeronimo Melo | Pedra-PE */
:root {
    --primary-color: #1c3a5e; 
    --primary-hover: #122640;
    --text-main: #1e293b;
    --text-muted: #64748b;
    --bg-card: #ffffff;
    --border-color: #cbd5e1;
    --input-bg: transparent;
    --input-bg-highlight: #f1f5f9; 
    --glass-bg: rgba(241, 245, 249, 0.4);
    --btn-text: #ffffff;
    --transition: 0.3s ease;
    --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

/* Variáveis para o MODO ESCURO */
body.dark-mode {
    --primary-color: #38bdf8; /* Azul mais vibrante para contraste no escuro */
    --primary-hover: #0284c7;
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --bg-card: #0f172a; /* Fundo do painel escuro */
    --border-color: #334155;
    --input-bg-highlight: #1e293b;
    --glass-bg: rgba(15, 23, 42, 0.7); /* Vidro escuro */
    --btn-text: #0f172a; /* Texto do botão invertido */
}

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

body {
    font-family: var(--font-family);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    background: url('https://images.unsplash.com/photo-1497366216548-37526070297c?auto=format&fit=crop&w=1920&q=80') center/cover no-repeat fixed;
    color: var(--text-main);
    transition: background-color var(--transition), color var(--transition);
}

/* Fundo Vidro */
.background-blur {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--glass-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    z-index: 1;
    transition: background var(--transition);
}

/* Botão de Tema */
.theme-toggle {
    position: absolute;
    top: 24px;
    right: 24px;
    z-index: 10;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    color: var(--text-main);
    padding: 10px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    transition: var(--transition);
}

.theme-toggle:hover {
    transform: scale(1.1);
    border-color: var(--primary-color);
}

/* Container do Login */
.login-wrapper {
    position: relative;
    z-index: 2;
    width: 100%;
    max-width: 420px;
    padding: 20px;
}

.login-card {
    background-color: var(--bg-card);
    padding: 48px 40px;
    border-radius: 16px;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.2);
    transition: background-color var(--transition), box-shadow var(--transition);
}

/* Cabeçalho */
.header {
    text-align: center;
    margin-bottom: 32px;
}

.lock-icon {
    display: flex;
    justify-content: center;
    margin-bottom: 16px;
    color: var(--primary-color);
    transition: color var(--transition);
}

.header h1 {
    font-size: 22px;
    font-weight: 500;
    color: var(--text-main);
    letter-spacing: -0.02em;
}

/* Inputs */
.input-group {
    display: flex;
    align-items: center;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    margin-bottom: 16px;
    background-color: var(--bg-card);
    transition: var(--transition);
}

.input-group.highlight-input {
    background-color: var(--input-bg-highlight);
}

.input-group:focus-within {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(56, 189, 248, 0.15);
}

/* Cores dos Ícones Inteligentes */
.icon-left {
    padding: 0 14px;
    display: flex;
}
.icon-muted { color: var(--text-muted); }
.icon-primary { color: var(--primary-color); }

.input-group input {
    flex: 1;
    border: none;
    background: transparent;
    padding: 16px 16px 16px 0;
    font-size: 15px;
    color: var(--text-main);
    outline: none;
}

.input-group input::placeholder {
    color: var(--text-muted);
    opacity: 0.7;
}

.icon-right {
    background: none;
    border: none;
    padding: 0 16px;
    cursor: pointer;
    display: flex;
    color: var(--text-muted);
    transition: var(--transition);
}

.icon-right:hover {
    color: var(--primary-color);
}

/* Links */
.help-links {
    display: flex;
    justify-content: flex-end;
    margin-bottom: 28px;
    margin-top: -4px;
}

.help-links a, .footer-links a {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 13px;
    font-weight: 500;
    transition: color var(--transition);
}

/* Desenvolvido Por Bruno Otávio Jeronimo Melo | Pedra-PE */

.help-links a:hover, .footer-links a:hover {
    color: var(--primary-color);
    text-decoration: underline;
}

/* Botão Principal */
.btn-primary {
    width: 100%;
    background-color: var(--primary-color);
    color: var(--btn-text);
    border: none;
    padding: 16px;
    border-radius: 8px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    margin-bottom: 24px;
}

.btn-primary:hover {
    background-color: var(--primary-hover);
}

.btn-primary:disabled {
    opacity: 0.7;
    cursor: not-allowed;
}

/* Rodapé */
/* Desenvolvido Por Bruno Otávio Jeronimo Melo | Pedra-PE */
.footer-links {
    text-align: center;
    border-top: 1px solid var(--border-color);
    padding-top: 24px;
}

/* Botão do Administrador */
.btn-admin {
    width: 100%;
    padding: 12px;
    margin-top: -12px;
    margin-bottom: 12px;
    background: transparent;
    color: var(--primary-color);
    border: 1px solid var(--primary-color);
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: 0.3s ease;
    font-size: 0.95rem;
}

.btn-admin:hover {
    background: rgba(56, 189, 248, 0.1);
    transform: translateY(-2px);
}

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