:root {
    --bg: #f4f6f9;
    --card-bg: #ffffff;
    --text: #1f2937;
    --input-bg: #ffffff;
    --accent: #6366f1;
    --ai-bg: #e0f2fe;
}

.dark {
    --bg: #121826;
    --card-bg: #1e293b;
    --text: #e2e8f0;
    --input-bg: #243041;
    --ai-bg: #1f2a3c;
}

body {
    font-family: Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
    padding: 20px;
    transition: 0.3s ease;
}

.container {
    max-width: 1000px;
    margin: auto;
}

/* LOGO SECTION */

.logo-container {
    text-align: center;
    margin-bottom: 30px;
}

.logo {
    width: 150px;
    display: block;
    margin: 0 auto 15px auto;
    border-radius: 20px;
    box-shadow: 0 10px 25px rgba(0,0,0,0.15);
    transition: 0.3s ease;
}

.logo:hover {
    transform: scale(1.05);
}

.logo-container h1 {
    margin: 5px 0;
    font-size: 32px;
}

.tagline {
    color: var(--accent);
    font-size: 14px;
}

/* TOP CONTROLS */

.top-controls {
    display: flex;
    gap: 15px;
    margin-bottom: 25px;
    align-items: center;
}

/* DASHBOARD */

.dashboard {
    display: flex;
    gap: 15px;
    margin-bottom: 25px;
}

.card {
    flex: 1;
    background: var(--card-bg);
    padding: 18px;
    border-radius: 12px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

/* FORM & BUDGET */

.form,
.budget-section {
    display: flex;
    gap: 12px;
    margin-bottom: 20px;
}

input,
select {
    padding: 9px;
    border-radius: 6px;
    border: 1px solid #ccc;
    flex: 1;
    background: var(--input-bg);
    color: var(--text);
}

button {
    padding: 9px 14px;
    background: var(--accent);
    color: white;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    transition: 0.2s ease;
}

button:hover {
    opacity: 0.85;
}

/* RECORDS */

ul {
    list-style: none;
    padding: 0;
}

li {
    background: var(--card-bg);
    padding: 12px;
    margin: 6px 0;
    border-radius: 8px;
}

/* CHART */

.chart-box {
    width: 450px;
    margin: 30px auto;
}

/* AI SECTIONS */

.ai-section,
.ai-chat {
    background: var(--ai-bg);
    padding: 18px;
    border-radius: 12px;
    margin-top: 20px;
}

.chat-input {
    display: flex;
    gap: 10px;
    margin-bottom: 10px;
}