/* css/style.css */
:root {
    --primary: #2563eb;
    --primary-hover: #1d4ed8;
    --bg-gradient: linear-gradient(135deg, #f0f9ff 0%, #cbebff 100%);
    --glass-bg: rgba(255, 255, 255, 0.85);
    --glass-border: 1px solid rgba(255, 255, 255, 0.3);
    --shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.07);
    --text-main: #1e293b;
    --text-muted: #64748b;
    --radius: 12px;
}

body {
    margin: 0;
    font-family: 'Inter', system-ui, sans-serif;
    background: var(--bg-gradient);
    color: var(--text-main);
    min-height: 100vh;
}

/* Glassmorphism Container */
.app-container {
    max-width: 1200px;
    margin: 2rem auto;
    padding: 2rem;
    min-height: 80vh;
}

/* Navigation */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: var(--glass-border);
    box-shadow: var(--shadow);
    border-radius: var(--radius);
    padding: 1rem 2rem;
    margin-bottom: 2rem;
}

.brand {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary);
}

.nav-links button {
    background: none;
    border: none;
    padding: 0.5rem 1rem;
    font-size: 1rem;
    cursor: pointer;
    color: var(--text-main);
    transition: color 0.2s;
}

.nav-links button:hover {
    color: var(--primary);
}

.nav-links button.active {
    font-weight: 600;
    color: var(--primary);
}

/* Content Area */
.content {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border-radius: var(--radius);
    padding: 2rem;
    box-shadow: var(--shadow);
}

h1,
h2 {
    color: var(--text-main);
}

/* Utilities */
.btn {
    background: var(--primary);
    color: white;
    border: none;
    padding: 0.6rem 1.2rem;
    border-radius: 6px;
    cursor: pointer;
    font-weight: 500;
    transition: background 0.2s;
}

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

.hidden {
    display: none !important;
}