/* --------------------
   Variáveis CSS para uma paleta profissional
   -------------------- */
:root {
    --primary-color: #0077b6; /* Azul corporativo */
    --primary-hover-color: #005f93;
    --background-light: #f4f7f9;
    --text-dark: #2c3e50;
    --text-light: #7f8c8d;
    --card-bg: #ffffff;
    --border-color: #e8ecef;
    --shadow-light: 0 2px 4px rgba(0, 0, 0, 0.05);
    --shadow-medium: 0 10px 30px rgba(0, 0, 0, 0.08);
    --shadow-strong: 0 20px 50px rgba(0, 0, 0, 0.15);
    --border-radius-base: 0.75rem;
    --border-radius-large: 1.5rem;
}

/* --------------------
   Estilos Base e Tipografia
   -------------------- */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--background-light);
    color: var(--text-dark);
    margin: 0;
    padding: 2rem 1rem;
}

.container {
    max-width: 1280px;
    margin-left: auto;
    margin-right: auto;
}

/* --------------------
   Componentes Personalizados
   -------------------- */

/* Sombra mais suave e moderna para todos os cards e modais */
.shadow-custom {
    box-shadow: var(--shadow-medium);
    transition: all 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
}
.shadow-custom:hover {
    box-shadow: var(--shadow-strong);
}

.loading {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    background: rgba(255, 255, 255, 0.95);
    padding: 2.5rem;
    border-radius: var(--border-radius-large);
    box-shadow: var(--shadow-strong);
    z-index: 1000;
}

.spinner {
    border: 4px solid rgba(0, 0, 0, 0.1);
    border-top: 4px solid var(--primary-color);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 1s cubic-bezier(0.68, -0.55, 0.27, 1.55) infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Modal de Login */
.login-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.7);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 2000;
    backdrop-filter: blur(5px);
}

.login-box {
    background-color: var(--card-bg);
    padding: 3rem;
    border-radius: var(--border-radius-large);
    box-shadow: var(--shadow-strong);
    text-align: center;
    transform: scale(0.9);
    animation: fadeInScale 0.5s forwards cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

@keyframes fadeInScale {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* Cards de Totais */
.total-card {
    transition: all 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
    border-radius: var(--border-radius-base);
}
.total-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-strong);
}

/* Estilização para modais genéricos */
.modal-content {
    background-color: var(--card-bg);
    padding: 2.5rem;
    border-radius: var(--border-radius-large);
    box-shadow: var(--shadow-strong);
    width: 100%;
    max-width: 450px;
}

/* Melhorias para os botões */
.btn-primary {
    transition: transform 0.2s ease-in-out, background-color 0.2s ease-in-out;
}
.btn-primary:hover {
    transform: translateY(-2px);
    background-color: var(--primary-hover-color);
}
.btn-secondary {
    transition: background-color 0.2s ease-in-out;
}
.btn-secondary:hover {
    background-color: #e2e8f0;
}

/* Melhorias na lista de devedores */
.lista-item {
    transition: all 0.3s ease-in-out;
    border-radius: var(--border-radius-base);
    cursor: pointer;
}
.lista-item:hover {
    background-color: #f8f9fb;
    transform: translateX(5px);
    box-shadow: var(--shadow-light);
}

.search-input {
    border: 1px solid var(--border-color);
    transition: border-color 0.2s ease-in-out, box-shadow 0.2s ease-in-out;
}
.search-input:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(74, 144, 226, 0.2);
}

/* --------------------
   Responsividade (Melhorias no Layout)
   -------------------- */

@media (max-width: 640px) {
    body {
        padding: 1rem 0.5rem;
    }
    .grid-cols-1, .grid-cols-2 {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .login-box {
        padding: 2rem;
    }
}