/*
  RECOMMENDED FONT LOADING (add to your HTML <head>):
  <link rel="preconnect" href="https://fonts.googleapis.com">
  <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
  <link href="https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap" rel="stylesheet">
*/

:root {
    /* Font */
    --font-family-sans: 'Inter', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    
    /* Colors - Twilight Blue / Modern Blue Theme (NOVA PALETA) */
    --primary-color: #3B82F6; /* Azul vibrante (Tailwind Blue 500) */
    --primary-hover-color: #2563EB; /* Azul mais escuro para hover (Tailwind Blue 600) */
    --primary-focus-ring-color: rgba(59, 130, 246, 0.35);

    --accent-color: #06B6D4; /* Ciano vibrante (Tailwind Cyan 500) */
    --accent-hover-color: #0891B2; /* Ciano mais escuro (Tailwind Cyan 600) */
    --accent-text-color-on-bg: #ffffff; /* Texto branco sobre o ciano */
    --accent-rgb: 6, 182, 212; /* RGB para o ciano --accent-color */

    --body-bg-color: #0F172A; /* Azul ardósia muito escuro (Tailwind Slate 900) */
    --surface-color: #1E293B; /* Azul ardósia escuro (Tailwind Slate 800) */
    --surface-hover-color: #334155; /* Azul ardósia um pouco mais claro (Tailwind Slate 700) */
    
    --text-color: #CBD5E1; /* Cinza azulado mais claro (Tailwind Slate 300) */
    --text-muted-color: #94A3B8; /* Cinza azulado (Tailwind Slate 400) */
    --heading-color: #F1F5F9; /* Cinza muito claro, quase branco (Tailwind Slate 100) */
    
    --border-color: #334155; /* Azul ardósia (Tailwind Slate 700) */
    --border-color-light: #475569; /* Azul ardósia (Tailwind Slate 600) */

    --table-header-bg-color: #1E293B; 
    --table-header-text-color: var(--heading-color);
    --table-row-even-bg-color: #293548; 
    --table-row-hover-bg-color: #3B4A60; 

    --error-color: #EF4444; 
    --success-color: #22C55E; 

    /* Shadows - Adaptadas para o novo tema */
    --shadow-small: 0 2px 4px rgba(0, 0, 0, 0.25);
    --shadow-medium: 0 5px 15px rgba(0, 0, 0, 0.3);
    --shadow-large: 0 10px 30px rgba(0,0,0,0.35);
    --shadow-inner: inset 0 1px 2px rgba(0, 0, 0, 0.35);
    --glow-primary: 0 0 8px rgba(59, 130, 246, 0.6); 
    --glow-accent: 0 0 8px rgba(var(--accent-rgb), 0.7);

    /* Borders & Radius (Mantido) */
    --border-radius-small: 4px;
    --border-radius-medium: 6px;
    --border-radius-large: 8px;

    /* Transitions (Mantido) */
    --transition-fast: 0.15s ease-in-out;
    --transition-normal: 0.2s ease-in-out;
    --transition-smooth: 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);


    /* Spacing (Mantido) */
    --spacing-xsmall: 4px;
    --spacing-small: 8px;
    --spacing-medium: 16px;
    --spacing-large: 24px;
    --spacing-xlarge: 32px;
    --spacing-xxlarge: 48px;
}

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

html {
    height: 100%;
}

body {
    font-family: var(--font-family-sans);
    background-color: var(--body-bg-color);
    color: var(--text-color);
    line-height: 1.7; 
    padding: 0; 
    font-size: 16px; 
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    display: flex;
    flex-direction: column;
    min-height: 100%;
}

.container { 
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-large) 0; 
}

h1, h2, h3, h4, h5, h6 {
    color: var(--heading-color);
    margin-top: var(--spacing-large);
    margin-bottom: var(--spacing-medium);
    font-weight: 700; 
    line-height: 1.3;
}

h1 { font-size: 2.75rem; font-weight: 800; } 
h2 { font-size: 2rem; }   
h3 { font-size: 1.5rem; }  
h4 { font-size: 1.25rem; } 

p {
    margin-bottom: var(--spacing-medium);
}

a {
    color: var(--accent-color); 
    text-decoration: none;
    transition: color var(--transition-fast), text-decoration var(--transition-fast);
    font-weight: 500;
}

a:hover, a:focus {
    color: var(--accent-hover-color);
    text-decoration: underline; 
}

/* Visually Hidden Class */
.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* Page Layout Styles */
.page-header {
    background-color: var(--surface-color); 
    padding: var(--spacing-medium) var(--spacing-large);
    margin-bottom: var(--spacing-large);
    box-shadow: var(--shadow-medium);
    border-bottom: 2px solid var(--accent-color); /* Ciano */
    flex-shrink: 0;
}

/* Estilo .page-header.hero mantido do seu CSS original, caso use em algum lugar.
   A home V1 usa .home-header que é estilizado separadamente abaixo. */
.page-header.hero { 
    padding: var(--spacing-xxlarge) var(--spacing-large);
    margin-bottom: var(--spacing-xlarge);
    background-size: cover;
    background-position: center center;
    background-color: #222; 
    color: white;
    text-align: center;
    border-radius: 0 0 var(--border-radius-large) var(--border-radius-large);
}
.page-header.hero h1 {
    color: white;
    font-size: 3.5rem;
    text-shadow: 2px 2px 8px rgba(0,0,0,0.7);
    margin-bottom: var(--spacing-small);
}
.page-header.hero p.subtitle {
    font-size: 1.25rem;
    color: var(--text-color);
    margin-bottom: var(--spacing-large);
    text-shadow: 1px 1px 4px rgba(0,0,0,0.7);
}

.main-navigation {
    margin-top: var(--spacing-medium);
    display: flex;
    gap: var(--spacing-small);
    flex-wrap: wrap;
    justify-content: center; 
}

.filter-controls {
    background-color: var(--surface-hover-color); 
    padding: var(--spacing-medium);
    border-radius: var(--border-radius-medium);
    margin: var(--spacing-medium) 0;
    display: flex;
    align-items: center;
    gap: var(--spacing-medium); 
    flex-wrap: wrap; 
    border: 1px solid var(--border-color);
}

.filter-controls label {
    font-weight: 500;
    color: var(--heading-color); 
}

.track-image-container {
    margin: var(--spacing-large) auto; 
    background-color: var(--surface-color);
    padding: var(--spacing-small);
    border-radius: var(--border-radius-medium);
    box-shadow: var(--shadow-medium);
    max-width: 600px; 
    border: 1px solid var(--border-color);
}
.track-image-container img {
    border: 2px solid var(--border-color-light);
}

main { 
    padding: var(--spacing-medium); 
    flex-grow: 1;
    width: 100%; 
}

.page-footer {
    text-align: center;
    margin-top: auto; 
    padding: var(--spacing-large) var(--spacing-medium); 
    border-top: 1px solid var(--border-color);
    font-size: 0.9rem;
    color: var(--text-muted-color);
    background-color: var(--surface-color); 
    flex-shrink: 0;
    width: 100%;
}

/* Details & Summary - Ajustado para nova paleta */
details { background-color: var(--surface-color); border: 1px solid var(--border-color); border-radius: var(--border-radius-medium); margin-bottom: var(--spacing-medium); box-shadow: var(--shadow-small); overflow: hidden; }
summary { cursor: pointer; font-size: 1.25rem; font-weight: 600; padding: var(--spacing-medium) var(--spacing-large); position: relative; display: flex; align-items: center; background-color: var(--surface-hover-color); color: var(--heading-color); transition: background-color var(--transition-fast); }
details:hover summary { background-color: #3c4a5e; } /* Tom de hover um pouco diferente para surface-hover */
summary h3 { margin: 0; font-size: 1.25rem; font-weight: 600; }
summary::-webkit-details-marker, summary::marker { display: none; }
summary::before { content: '▼'; font-size: 0.9em; margin-right: var(--spacing-medium); transform-origin: center; transition: transform var(--transition-normal); color: var(--accent-color); } /* Ciano */
details[open] > summary::before { transform: rotate(-90deg); }
.details-content { padding: var(--spacing-large); border-top: 1px solid var(--border-color); }


/* Form Elements - Ajustado para nova paleta */
label { display: block; margin-bottom: var(--spacing-small); font-weight: 500; color: var(--text-color); }
input, select, textarea { 
    font-family: inherit; 
    font-size: 1rem; padding: 12px 15px; margin-bottom: var(--spacing-large); width: 100%; 
    border: 1px solid var(--border-color); 
    border-radius: var(--border-radius-medium); 
    background-color: #0B1220; /* Fundo de input mais escuro */
    box-shadow: var(--shadow-inner); 
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast), background-color var(--transition-fast); 
    color: var(--heading-color); 
}
input::placeholder, textarea::placeholder { color: var(--text-muted-color); }
input:focus, select:focus, textarea:focus { 
    outline: none; 
    border-color: var(--accent-color); /* Ciano */
    background-color: var(--surface-color); 
    box-shadow: var(--shadow-inner), 0 0 0 3px rgba(var(--accent-rgb), 0.35); /* Usando accent-rgb para ciano */
}
textarea { min-height: 120px; resize: vertical; }

/* Buttons - Ajustado para nova paleta */
button, input[type="button"], input[type="submit"] { 
    background-color: var(--primary-color); /* Azul vibrante */
    color: #ffffff; border: none; font-weight: 600; text-transform: uppercase; 
    letter-spacing: 0.8px; padding: 12px 28px; cursor: pointer; 
    border-radius: var(--border-radius-medium); 
    box-shadow: var(--shadow-small), 0 0 0 0 transparent; 
    transition: background-color var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast); 
}
button.accent, input[type="button"].accent, input[type="submit"].accent { 
    background-color: var(--accent-color); /* Ciano */
    color: var(--accent-text-color-on-bg); /* Branco sobre ciano */
}
button:hover, input[type="button"]:hover, input[type="submit"]:hover { 
    background-color: var(--primary-hover-color); 
    box-shadow: var(--shadow-medium); transform: translateY(-2px); 
}
button.accent:hover, input[type="button"].accent:hover, input[type="submit"].accent:hover { 
    background-color: var(--accent-hover-color); 
}
button:focus, input[type="button"]:focus, input[type="submit"]:focus { 
    outline: none; 
    box-shadow: var(--shadow-small), 0 0 0 3px var(--primary-focus-ring-color); 
}
button.accent:focus, input[type="button"].accent:focus, input[type="submit"].accent:focus { 
    box-shadow: var(--shadow-small), 0 0 0 3px rgba(var(--accent-rgb), 0.4); /* Usando accent-rgb para ciano */
}
button:active, input[type="button"]:active, input[type="submit"]:active { transform: translateY(0px); box-shadow: var(--shadow-inner); }
.button-container { display: flex; gap: var(--spacing-medium); flex-wrap: wrap; margin-top: var(--spacing-medium); margin-bottom: var(--spacing-medium); justify-content: flex-start; }
.button-container.center { justify-content: center; }


/* Table Styling - Ajustado para nova paleta */
.table-responsive-wrapper { overflow-x: auto; margin-top: var(--spacing-medium); margin-bottom: var(--spacing-medium); border: 1px solid var(--border-color); border-radius: var(--border-radius-large); background-color: var(--surface-color); }
.table-responsive-wrapper { scrollbar-width: thin; scrollbar-color: var(--border-color) var(--surface-hover-color); }
.table-responsive-wrapper::-webkit-scrollbar { height: 12px; width: 12px; }
.table-responsive-wrapper::-webkit-scrollbar-track { background: var(--surface-hover-color); border-radius: var(--border-radius-small); }
.table-responsive-wrapper::-webkit-scrollbar-thumb { background-color: var(--border-color); border-radius: var(--border-radius-small); border: 3px solid var(--surface-hover-color); }
.table-responsive-wrapper::-webkit-scrollbar-thumb:hover { background-color: var(--text-muted-color); }
table { width: 100%; border-collapse: separate; border-spacing: 0; }
th, td { text-align: left; padding: var(--spacing-medium); border-bottom: 1px solid var(--border-color); white-space: nowrap; }
th { background-color: var(--table-header-bg-color); color: var(--table-header-text-color); font-weight: 600; text-transform: uppercase; letter-spacing: 0.5px; position: sticky; top: 0; z-index: 10; }
tr:last-child td { border-bottom: none; }
tr:nth-child(even) { background-color: var(--table-row-even-bg-color); }
tr:hover { background-color: var(--table-row-hover-bg-color); }

/* Image Styling */
img { display: block; max-width: 100%; height: auto; border-radius: var(--border-radius-medium); }
.image-preview-container { margin-top: var(--spacing-small); margin-bottom: var(--spacing-medium); padding: var(--spacing-medium); border: 2px dashed var(--border-color); border-radius: var(--border-radius-medium); min-height: 100px; display: flex; flex-direction: column; align-items: center; justify-content: center; background-color: rgba(0,0,0,0.1); }
.image-preview-container img { max-width: 100%; max-height: 200px; display: none; border: 1px solid var(--border-color); margin-bottom: var(--spacing-small); border-radius: var(--border-radius-small); }

/* Login Page Specific Styles - Ajustado para nova paleta e sticky footer */
.login-page-body {
    padding: 0; 
}
.login-page-body .page-header { 
    width: 100%;
    margin-bottom: 0; 
    border-bottom: 1px solid var(--border-color); 
}
.login-container { 
    width: 100%;
    max-width: 450px; 
    display: flex;
    justify-content: center;
    align-items: center;
    flex-grow: 1; 
    padding: var(--spacing-xlarge) var(--spacing-medium); 
    margin: 0 auto; 
}
.login-box { 
    background-color: var(--surface-color); 
    padding: var(--spacing-xlarge) var(--spacing-xxlarge); 
    border-radius: var(--border-radius-large); 
    box-shadow: var(--shadow-large); 
    width: 100%; 
    text-align: center; 
    border-top: 4px solid var(--accent-color); /* Ciano */
}
.login-box h2 { margin-top: 0; margin-bottom: var(--spacing-large); color: var(--heading-color); }
.login-box input { margin-bottom: var(--spacing-medium); }
.login-box button { width: 100%; margin-top: var(--spacing-medium); padding: 14px 28px; }
.login-page-body .page-footer { 
    width: 100%;
    flex-shrink: 0;
    margin-top: auto; 
}


/* Admin Page Specific Styles - Ajustado para nova paleta */
.admin-header nav { display: flex; flex-wrap: wrap; gap: var(--spacing-medium); align-items: center; }
.admin-main-content { max-width: 900px; margin-left: auto; margin-right: auto; padding: var(--spacing-large); }
.admin-section { margin-bottom: var(--spacing-large); border: 1px solid var(--border-color); border-radius: var(--border-radius-medium); overflow: hidden;}
.admin-section summary { background-color: var(--surface-color); border-bottom: 1px solid var(--border-color); border-radius: var(--border-radius-medium) var(--border-radius-medium) 0 0; }
details[open].admin-section > summary { border-bottom-color: var(--border-color); border-radius: var(--border-radius-medium) var(--border-radius-medium) 0 0; }
.admin-section .details-content { background-color: var(--surface-hover-color); border-radius: 0 0 var(--border-radius-medium) var(--border-radius-medium); }
.error-message { color: var(--error-color); font-size: 0.9rem; margin-top: var(--spacing-xsmall); font-weight: 500; }
.model-tooltip { cursor: help; text-decoration: underline dotted var(--accent-color); font-weight: 500; } /* Ciano */
.management-item { padding: var(--spacing-medium); border-bottom: 1px solid var(--border-color-light); gap: var(--spacing-medium); }
.management-item:last-child { border-bottom: none; }
.management-item p { margin-bottom: var(--spacing-xsmall); }
.management-item strong { color: var(--heading-color); }
.management-item img { border: 1px solid var(--border-color); margin-bottom: var(--spacing-small); }
.management-actions { display: flex; gap: var(--spacing-small); flex-shrink: 0; margin-top: var(--spacing-medium); }
#entryManagement button, #trackManagement button, #vehicleManagement button { margin: 0; padding: var(--spacing-xsmall) var(--spacing-small); font-size: 0.85rem; width: auto; text-transform: none; letter-spacing: 0.2px; }
.management-actions button[onclick*="remove"], .management-actions button[onclick*="delete"] { background-color: var(--error-color); color: white; }
.management-actions button[onclick*="remove"]:hover, .management-actions button[onclick*="delete"]:hover { background-color: #c42828; }


/* Utility classes */
.text-center { text-align: center; }
.mt-0 { margin-top: 0 !important; }


/* ============================================================ */
/* ESTILOS PARA HOME PAGE V1 (CARDS CENTRALIZADOS) - Twilight Blue */
/* (Anteriormente .home-header, .home-main-content, .nav-card etc.) */
/* ============================================================ */

/* Seletor .page-header já é usado para outras páginas, então para a home V1
   usaremos a classe .home-v1-header que pode ser adicionada ao <header> da home V1. */
.home-v1-header { 
    text-align: center;
    margin-bottom: var(--spacing-xxlarge); 
    padding-top: var(--spacing-large); 
    border-bottom: none; 
    box-shadow: none; 
    background-color: transparent; 
    flex-shrink: 0; 
}

.home-v1-header h1 { /* Título H1 dentro de .home-v1-header */
    font-size: 3rem; 
    margin-bottom: var(--spacing-small);
    color: var(--heading-color);
    font-weight: 800;
}

.home-v1-header .subtitle { /* Subtítulo dentro de .home-v1-header */
    font-size: 1.2rem;
    color: var(--text-muted-color);
    margin-bottom: 0;
    max-width: 700px; 
    margin-left: auto;
    margin-right: auto;
}

/* Seletor para o <main> da home V1, se necessário para diferenciá-lo */
.home-v1-main-content { 
    max-width: 1100px; 
    margin-left: auto;
    margin-right: auto;
    padding-left: var(--spacing-medium); 
    padding-right: var(--spacing-medium);
    flex-grow: 1; 
    width: 100%;
}

.home-nav-grid { /* Grid para os cards da home V1 */
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); 
    gap: var(--spacing-large);
    margin-top: var(--spacing-large);
    padding: 0; 
}

.nav-card { /* Estilo dos cards para home V1 */
    background-color: var(--surface-color);
    border-radius: var(--border-radius-large);
    padding: var(--spacing-large);
    text-align: center;
    box-shadow: var(--shadow-medium);
    transition: transform var(--transition-smooth), box-shadow var(--transition-smooth), border-color var(--transition-smooth);
    text-decoration: none;
    color: var(--text-color);
    display: flex;
    flex-direction: column;
    align-items: center;
    border: 2px solid var(--border-color); 
}

.nav-card:hover, .nav-card:focus {
    transform: translateY(-6px);
    box-shadow: var(--shadow-large);
    border-color: var(--accent-color); /* Ciano */
    text-decoration: none; 
    color: var(--text-color); 
}

.nav-card:hover h3, .nav-card:focus h3 { /* Título do card V1 */
    color: var(--accent-hover-color); /* Ciano mais escuro */
}


.nav-card-icon-fa { /* Ícone para os cards da home V1 */
    font-size: 42px; 
    color: var(--accent-color); /* Ciano */
    margin-bottom: var(--spacing-medium);
    width: 80px; 
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--surface-hover-color); 
    border-radius: 50%; 
    transition: color var(--transition-fast), background-color var(--transition-fast);
}

.nav-card:hover .nav-card-icon-fa,
.nav-card:focus .nav-card-icon-fa { /* Ícone do card V1 no hover */
    color: var(--accent-hover-color); /* Ciano mais escuro */
    background-color: #383e4a; /* Ou uma variação de --surface-hover-color */
}


.nav-card h3 { /* Título dentro do card V1 */
    margin-top: 0;
    margin-bottom: var(--spacing-small);
    color: var(--heading-color); 
    font-size: 1.4rem;
    font-weight: 700;
    transition: color var(--transition-normal);
}

.nav-card p { /* Parágrafo dentro do card V1 */
    font-size: 0.9rem; 
    color: var(--text-muted-color);
    flex-grow: 1; 
    margin-bottom: var(--spacing-medium);
    min-height: 50px; 
}

.nav-card .nav-card-button { /* Botão dentro do card V1 */
    display: inline-block;
    width: auto; 
    margin-top: auto; 
    padding: 10px 22px; 
    font-weight: 600;
    background-color: var(--primary-color); /* Azul */
    color: #ffffff; 
    border-radius: var(--border-radius-medium);
    text-transform: uppercase;
    letter-spacing: 0.6px;
    transition: background-color var(--transition-fast);
    text-decoration: none; 
    border: 1px solid transparent; 
}

.nav-card:hover .nav-card-button, .nav-card:focus .nav-card-button {
    background-color: var(--primary-hover-color); /* Azul mais escuro */
    text-decoration: none;
}

/* Removendo a seção duplicada da HOME V3, pois já está integrada acima */
/* Se precisar dos estilos da V3 (com sidebar) especificamente,
   eles já foram fornecidos e mesclados na resposta anterior.
   Esta resposta foca em aplicar a paleta "Twilight Blue" ao seu CSS existente
   que já incluía os estilos para a home V1 (cards centralizados).
*/