/* Modern Color Palette & Variables */
:root {
    --primary-hue: 250;
    --primary: hsl(var(--primary-hue), 70%, 60%);
    --primary-dark: hsl(var(--primary-hue), 70%, 50%);
    --primary-light: hsl(var(--primary-hue), 70%, 90%);
    
    --accent-hue: 320;
    --accent: hsl(var(--accent-hue), 80%, 60%);
    
    --bg-dark: hsl(220, 20%, 10%);
    --bg-card: hsla(220, 20%, 15%, 0.7);
    --text-main: hsl(0, 0%, 95%);
    --text-muted: hsl(220, 10%, 70%);
    
    --glass-border: hsla(0, 0%, 100%, 0.1);
    --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
}

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

body {
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    background-color: var(--bg-dark);
    color: var(--text-main);
    line-height: 1.6;
    background-image: 
        radial-gradient(circle at 10% 20%, hsla(var(--primary-hue), 60%, 20%, 0.3) 0%, transparent 40%),
        radial-gradient(circle at 90% 80%, hsla(var(--accent-hue), 60%, 20%, 0.3) 0%, transparent 40%);
    min-height: 100vh;
}

/* Utilities */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.auth-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 80vh;
}

/* Glassmorphism Cards */
.glass-card {
    background: var(--bg-card);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    padding: 2.5rem;
    box-shadow: var(--glass-shadow);
}

/* Typography */
h1, h2, h3 {
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: 1rem;
}

h1 {
    font-size: 2.5rem;
    background: linear-gradient(135deg, var(--primary-light) 0%, var(--primary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

p {
    color: var(--text-muted);
    margin-bottom: 1.5rem;
}

/* Forms */
.form-group {
    margin-bottom: 1.5rem;
}

label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--text-main);
}

input[type="text"],
input[type="email"],
input[type="password"],
textarea,
select {
    width: 100%;
    padding: 0.8rem 1rem;
    background: hsla(220, 20%, 10%, 0.5);
    border: 1px solid var(--glass-border);
    border-radius: 8px;
    color: white;
    font-size: 1rem;
    transition: all 0.3s ease;
}

input:focus, textarea:focus, select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px hsla(var(--primary-hue), 70%, 60%, 0.25);
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.8rem 1.5rem;
    border-radius: 8px;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    border: none;
    transition: transform 0.2s, box-shadow 0.2s;
    font-size: 1rem;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: white;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px hsla(var(--primary-hue), 70%, 60%, 0.4);
}

.btn-danger {
    background: linear-gradient(135deg, hsl(0, 70%, 60%) 0%, hsl(0, 70%, 40%) 100%);
    color: white;
}

.btn-danger:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px hsla(0, 70%, 60%, 0.4);
}

/* Landing Page Specifics */
.hero-section {
    text-align: center;
    padding: 4rem 0;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin: 3rem 0;
}

.feature-card {
    padding: 2rem;
    background: rgba(255,255,255,0.03);
    border-radius: 12px;
    border: 1px solid rgba(255,255,255,0.05);
    transition: transform 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
    background: rgba(255,255,255,0.05);
}

.lgpd-badge {
    display: inline-flex;
    align-items: center;
    padding: 0.5rem 1rem;
    background: hsla(150, 60%, 20%, 0.4);
    border: 1px solid hsla(150, 60%, 40%, 0.5);
    color: hsl(150, 80%, 80%);
    border-radius: 50px;
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 2rem;
}

/* Dashboard Layout */
.dashboard-layout {
    display: grid;
    grid-template-columns: 250px 1fr;
    min-height: 100vh;
}

.sidebar {
    background: rgba(0,0,0,0.2);
    border-right: 1px solid var(--glass-border);
    padding: 2rem;
}

.main-content {
    padding: 2rem;
    overflow-y: auto;
}

.nav-link {
    display: block;
    padding: 1rem;
    color: var(--text-muted);
    text-decoration: none;
    border-radius: 8px;
    margin-bottom: 0.5rem;
    transition: all 0.2s;
}

.nav-link:hover, .nav-link.active {
    background: var(--primary);
    color: white;
}

/* File Upload */
.upload-area {
    border: 2px dashed var(--glass-border);
    border-radius: 12px;
    padding: 3rem;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s;
}

.upload-area:hover {
    border-color: var(--primary);
    background: rgba(255,255,255,0.02);
}

/* Admin Table */
table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 1rem;
}

th, td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid var(--glass-border);
}

th {
    color: var(--primary-light);
    font-weight: 600;
}

/* Responsive */
@media (max-width: 768px) {
    .dashboard-layout {
        grid-template-columns: 1fr;
    }
    .sidebar {
        display: none; /* Implement mobile menu if needed, for now simplified */
    }
}