:root {
    --primary-bg: #eef2f5;
    --card-bg: #ffffff;
    --text-main: #2d3436;
    --text-sec: #636e72;
    --accent: #0984e3;
    --accent-glow: rgba(9, 132, 227, 0.25);
    --border: #dfe6e9;
    --gradient-1: linear-gradient(135deg, #74b9ff 0%, #a29bfe 100%);
    --shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    outline: none;
}

body {
    scale: 1,25vh;
    font-family: 'Outfit', sans-serif;
    background-color: var(--primary-bg);
    color: var(--text-main);
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 20px;
}

.container {
    display: grid;
    grid-template-columns: 1fr;
    gap: 30px;
    width: 100%;
    max-width: 500px;
}

.card {
    background: var(--card-bg);
    border-radius: 20px;
    padding: 30px;
    box-shadow: var(--shadow);
}

.header {
    text-align: center;
    margin-bottom: 25px;
}

.header h2 {
    font-weight: 600;
    font-size: 1.5rem;
    color: var(--text-main);
    margin-bottom: 5px;
}

.header p {
    font-size: 0.9rem;
    color: var(--text-sec);
}

/* Currency Grid */
.currency-grid {
    display: grid;
    gap: 15px;
}

.input-group {
    position: relative;
}

.input-group label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-sec);
    margin-bottom: 5px;
    margin-left: 5px;
}

.input-group input {
    width: 100%;
    padding: 15px;
    border-radius: 12px;
    border: 2px solid var(--border);
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-main);
    background: #fdfdfd;
    transition: all 0.2s ease;
}

.input-group input:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 4px var(--accent-glow);
    background: #fff;
}

.last-updated {
    margin-top: 15px;
    text-align: center;
    font-size: 0.75rem;
    color: var(--text-sec);
    font-style: italic;
}

/* Percentage Calculator */
.percentage-card .calc-type {
    margin-bottom: 25px;
    padding-bottom: 15px;
    border-bottom: 1px dashed var(--border);
}

.percentage-card .calc-type:last-child {
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: none;
}

.calc-type h3 {
    font-size: 1rem;
    color: var(--accent);
    margin-bottom: 10px;
}

.calc-row {
    display: flex;
    align-items: center;
    gap: 10px;
}

.calc-row input {
    width: 100%;
    padding: 10px;
    border-radius: 10px;
    border: 1px solid var(--border);
    font-family: inherit;
    font-weight: 500;
}

.calc-row input:focus {
    border-color: var(--accent);
}

.operator {
    font-weight: bold;
    color: var(--text-sec);
}

.percentage-input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.percent-symbol {
    position: absolute;
    left: 10px;
    color: var(--text-sec);
    font-size: 0.8rem;
    pointer-events: none;
}

.percentage-input-wrapper input {
    padding-left: 25px;
}

.result-box {
    min-width: 80px;
    padding: 10px;
    background: var(--gradient-1);
    color: white;
    font-weight: bold;
    border-radius: 10px;
    text-align: center;
    font-size: 1.1rem;
}

/* Responsive */
@media (min-width: 768px) {
    .container {
        grid-template-columns: 1fr 1fr;
        max-width: 900px;
    }
}