/* Premium Ultra-Dark Theme - Precise & High Contrast */
:root {
    --bg-main: #020617;
    --bg-content: #0f172a;
    --bg-card: #1e293b;
    --accent: #6366f1;
    --text-primary: #ffffff;
    --text-secondary: #94a3b8;
    --success: #10b981;
    --danger: #ef4444;
    --border: #1e293b;
    --sidebar-w: 260px;
}

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

body {
    font-family: 'Inter', -apple-system, sans-serif;
    background-color: var(--bg-main) !important;
    color: var(--text-primary) !important;
    display: flex;
    min-height: 100vh;
    line-height: 1.5;
}

/* Sidebar */
.sidebar {
    width: var(--sidebar-w);
    background: #020617;
    height: 100vh;
    position: fixed;
    left: 0;
    top: 0;
    border-right: 1px solid var(--border);
    z-index: 1000;
}

.sidebar-header {
    padding: 40px 20px;
    text-align: center;
}

.sidebar-header h2 {
    color: #fff;
    font-size: 1.2rem;
    font-weight: 900;
    letter-spacing: 4px;
    text-transform: uppercase;
}

.sidebar-menu {
    list-style: none;
    padding: 10px 0;
}

.sidebar-menu li {
    margin-bottom: 5px;
}

.sidebar-menu a {
    display: flex;
    align-items: center;
    padding: 14px 25px;
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.95rem;
    transition: 0.3s;
    border-left: 4px solid transparent;
}

.sidebar-menu a i {
    width: 25px;
    margin-right: 15px;
    font-size: 1.1rem;
    text-align: center;
}

.sidebar-menu a:hover, .sidebar-menu a.active {
    color: #fff;
    background: rgba(99, 102, 241, 0.1);
    border-left-color: var(--accent);
}

/* Main Layout */
.main-content {
    flex: 1;
    margin-left: var(--sidebar-w);
    background: var(--bg-content) !important;
    min-height: 100vh;
    width: calc(100% - var(--sidebar-w));
}

.topbar {
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 40px;
    background: rgba(15, 23, 42, 0.9);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 900;
}

.dashboard-container {
    padding: 40px;
    max-width: 1400px;
    margin: 0 auto;
}

/* Typography Refinement */
h1, h2, h3, h4 { color: #fff !important; }
p, span { color: var(--text-secondary); }

/* Premium Cards */
.balance-card {
    background: linear-gradient(135deg, #1e293b, #0f172a);
    border-radius: 30px;
    padding: 40px;
    border: 1px solid #334155;
    box-shadow: 0 20px 50px rgba(0,0,0,0.5);
    margin-bottom: 40px;
}

/* History Items */
.history-item {
    background: var(--bg-card) !important;
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 20px;
    display: flex;
    align-items: center;
    gap: 20px;
    margin-bottom: 15px;
    transition: 0.3s;
}

.history-item:hover {
    transform: translateX(10px);
    border-color: var(--accent);
}

.cat-icon {
    width: 55px;
    height: 55px;
    border-radius: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
}

/* Bottom Nav */
.bottom-nav {
    display: none;
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    background: #020617;
    border-top: 1px solid var(--border);
    justify-content: space-around;
    padding: 15px 0;
    z-index: 2000;
}

.bottom-nav a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 11px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 5px;
}

.bottom-nav a.active { color: var(--accent); }

/* Grid Layouts */
.desktop-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 30px;
}

/* Forms & Panels */
.panel {
    background: var(--bg-card);
    border-radius: 25px;
    padding: 30px;
    border: 1px solid var(--border);
}

input, textarea, select {
    background: #0f172a !important;
    border: 1px solid #334155 !important;
    color: #fff !important;
    padding: 15px 20px !important;
    border-radius: 15px !important;
    font-family: inherit;
    font-size: 1rem;
    width: 100%;
    outline: none;
}

input:focus { border-color: var(--accent) !important; }

/* Responsive & Mobile Specific (Matching Mockup) */
@media (max-width: 992px) {
    :root {
        --sidebar-w: 0px;
    }
    .sidebar { display: none; }
    .main-content { margin-left: 0; width: 100%; padding-bottom: 100px; }
    .bottom-nav { display: flex; }
    .topbar { padding: 0 20px; height: 70px; }
    .dashboard-container { padding: 15px; }

    /* Mobile List Aesthetics (Mockup Style) */
    .history-group {
        margin-bottom: 35px;
    }
    .history-date {
        padding: 5px 10px !important;
        font-size: 0.8rem !important;
        color: var(--text-secondary) !important;
        border-bottom: none !important;
        margin-bottom: 10px !important;
    }
    .history-item {
        background: rgba(255, 255, 255, 0.03) !important;
        border-radius: 22px !important;
        padding: 15px !important;
        gap: 15px !important;
        margin-bottom: 10px !important;
        border: 1px solid rgba(255, 255, 255, 0.05) !important;
    }
    .cat-icon {
        width: 50px !important;
        height: 50px !important;
        border-radius: 50% !important; /* Circular like mockup */
        font-size: 20px !important;
    }
    .history-item div[style*="font-weight: 800"] {
        font-size: 1rem !important;
        font-weight: 700 !important;
    }
    .history-item div[style*="font-size: 1.3rem"] {
        font-size: 1.1rem !important;
        font-weight: 800 !important;
    }
    
    /* Balance Card for Mobile */
    .balance-card {
        padding: 25px !important;
        border-radius: 35px !important;
    }
    .balance-card h1 {
        font-size: 2.8rem !important;
    }
    .balance-card div[style*="border-radius: 25px"],
    .balance-card div[style*="border-radius: 18px"] {
        border-radius: 50% !important; /* Circular like mockup */
    }

    /* Template Buttons for Mobile */
    .cat-btn {
        border-radius: 25px !important;
    }
    .cat-btn div {
        border-radius: 50% !important; /* Circular like mockup */
    }

    /* Grid for Mobile */
    .desktop-grid {
        grid-template-columns: 1fr !important;
        gap: 15px !important;
    }
    
    /* Hide scrollbars but keep functionality */
    body::-webkit-scrollbar { display: none; }
}

/* Animations */
.animate-in {
    animation: fadeIn 0.6s ease-out forwards;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}