@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;600;800&display=swap');

:root {
    --bg-color: #12141d;
    --card-bg: #1e2230;
    --text-primary: #ffffff;
    --text-secondary: #94a3b8;
    --primary-blue: #3b82f6;
    --primary-red: #ef4444;
    --accent: #f59e0b;
    --border-color: #2d3348;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', sans-serif;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}

::-webkit-scrollbar-track {
    background: var(--bg-color);
}

::-webkit-scrollbar-thumb {
    background: #33394f;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-secondary);
}

body {
    background-color: var(--bg-color);
    color: var(--text-primary);
    height: 100vh;
    overflow: hidden;
    margin: 0;
}

.app-layout {
    display: flex;
    height: 100vh;
    width: 100%;
}

.sidebar {
    width: 260px;
    background-color: #1a1a24;
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    height: 100%;
    flex-shrink: 0;
    overflow-y: auto;
}

.sidebar .logo-area {
    padding: 20px;
    text-align: center;
    border-bottom: 1px solid var(--border-color);
}

.logo {
    font-size: 24px;
    font-weight: 800;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    text-decoration: none;
}

.logo span.blue { color: var(--primary-blue); }
.logo span.red { color: var(--primary-red); }

.sidebar .profile-area {
    padding: 20px;
    text-align: center;
    border-bottom: 1px solid var(--border-color);
}

.profile-avatar {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background-color: #333;
    margin: 0 auto 10px;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 24px;
    color: #fff;
    border: 2px solid var(--accent);
    overflow: hidden;
}

.profile-name {
    font-weight: bold;
    font-size: 16px;
    margin-bottom: 5px;
}

.profile-balance {
    color: var(--accent);
    font-weight: bold;
    font-size: 18px;
    margin: 10px 0;
}

.nav-menu {
    list-style: none;
    padding: 0;
    margin: 0;
}

.nav-menu li a {
    display: flex;
    align-items: center;
    padding: 15px 20px;
    color: var(--text-primary);
    text-decoration: none;
    transition: all 0.3s;
    border-left: 3px solid transparent;
    font-size: 14px;
}

.nav-menu li a:hover, .nav-menu li a.active {
    background: rgba(255,255,255,0.05);
    border-left-color: var(--accent);
}

.nav-menu li a i {
    width: 20px;
    margin-right: 10px;
    color: var(--text-secondary);
    text-align: center;
}

.main-content {
    flex-grow: 1;
    overflow-y: auto;
    background-color: var(--bg-color);
    padding: 20px 0;
}

a {
    text-decoration: none;
    color: var(--primary-blue);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.btn {
    padding: 10px 20px;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    border: none;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
}

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

.btn-blue:hover { background-color: #2563eb; }

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

.btn-red:hover { background-color: #dc2626; }

.btn-accent {
    background-color: var(--accent);
    color: #000;
}

.btn-accent:hover { background-color: #d97706; }

/* Auth Forms */
.auth-container {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-grow: 1;
    padding: 40px 20px;
}

.auth-card {
    background-color: var(--card-bg);
    padding: 40px;
    border-radius: 16px;
    width: 100%;
    max-width: 400px;
    box-shadow: 0 10px 25px rgba(0,0,0,0.5);
    border: 1px solid var(--border-color);
}

.auth-card h2 {
    text-align: center;
    margin-bottom: 25px;
    font-size: 28px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: var(--text-secondary);
    font-size: 14px;
}

.form-control {
    width: 100%;
    padding: 12px 15px;
    background-color: #151822;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: white;
    font-size: 16px;
    transition: border 0.3s ease;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-blue);
}

.auth-card .btn {
    width: 100%;
    margin-top: 10px;
    padding: 14px;
    font-size: 16px;
}

.auth-links {
    margin-top: 20px;
    text-align: center;
    font-size: 14px;
}

.alert {
    padding: 15px;
    border-radius: 8px;
    margin-bottom: 20px;
    text-align: center;
}

.alert-error {
    background-color: rgba(239, 68, 68, 0.1);
    border: 1px solid var(--primary-red);
    color: #fca5a5;
}

.alert-success {
    background-color: rgba(16, 185, 129, 0.1);
    border: 1px solid #10b981;
    color: #6ee7b7;
}

/* Mobile Header & Responsive Sidebar */
.mobile-header {
    display: none;
    background-color: var(--card-bg);
    padding: 15px 20px;
    border-bottom: 1px solid var(--border-color);
    align-items: center;
    justify-content: space-between;
}

.menu-toggle {
    background: transparent;
    border: none;
    color: white;
    font-size: 24px;
    cursor: pointer;
}

.sidebar-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.7);
    z-index: 999;
}

/* Responsive Design */
@media (max-width: 768px) {
    .app-layout {
        flex-direction: column;
    }
    
    .mobile-header {
        display: flex;
    }

    .sidebar {
        position: fixed;
        left: -260px;
        top: 0;
        z-index: 1000;
        transition: left 0.3s ease;
    }

    .sidebar.active {
        left: 0;
    }

    .sidebar-overlay.active {
        display: block;
    }

    .main-content {
        height: calc(100vh - 65px);
    }
    
    .sidebar .logo-area {
        display: none;
    }
}