:root {
    --bg-color: #0f172a;
    --text-color: #ffffff;
    --accent-color: #3b82f6;
    --glass-bg: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
    --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
    --input-bg: rgba(0, 0, 0, 0.2);
    --font-main: 'Outfit', sans-serif;
}

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

body {
    font-family: var(--font-main);
    background-color: var(--bg-color);
    color: var(--text-color);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow-x: hidden;
    position: relative;
}

/* Dynamic Background Blobs */
.background-blobs {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    overflow: hidden;
}

.blob {
    position: absolute;
    filter: blur(80px);
    opacity: 0.6;
    animation: move 20s infinite alternate;
}

.blob-1 {
    width: 300px;
    height: 300px;
    background: #7c3aed;
    top: 10%;
    left: 20%;
}

.blob-2 {
    width: 400px;
    height: 400px;
    background: #2563eb;
    bottom: 20%;
    right: 10%;
    animation-delay: -5s;
}

.blob-3 {
    width: 250px;
    height: 250px;
    background: #db2777;
    bottom: 10%;
    left: 30%;
    animation-delay: -10s;
}

@keyframes move {
    from { transform: translate(0, 0) scale(1); }
    to { transform: translate(20px, -20px) scale(1.1); }
}

.container {
    padding: 20px;
    width: 100%;
    max-width: 480px;
}

.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--glass-border);
    border-radius: 24px;
    padding: 40px;
    box-shadow: var(--glass-shadow);
    transition: transform 0.3s ease;
}

.glass-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 40px 0 rgba(0, 0, 0, 0.5);
}

header {
    text-align: center;
    margin-bottom: 30px;
}

header h1 {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 8px;
    background: linear-gradient(to right, #60a5fa, #c084fc);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

header p {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.6);
}

.converter-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

label {
    display: block;
    font-size: 12px;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 8px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

input, select {
    width: 100%;
    padding: 16px;
    background: var(--input-bg);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    color: white;
    font-family: var(--font-main);
    font-size: 16px;
    outline: none;
    transition: all 0.2s ease;
}

input:focus, select:focus {
    border-color: var(--accent-color);
    background: rgba(0, 0, 0, 0.4);
    box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.2);
}

/* Remove Arrows from Number Input */
input[type="number"]::-webkit-outer-spin-button,
input[type="number"]::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

.currency-row {
    display: flex;
    flex-direction: column;
    gap: 15px;
    position: relative;
}

.custom-select-wrapper {
    position: relative;
}

.custom-select-wrapper select {
    appearance: none;
    cursor: pointer;
}

.custom-select-wrapper .arrow {
    position: absolute;
    right: 16px;
    top: 50%;
    transform: translateY(-50%);
    pointer-events: none;
    font-size: 12px;
    color: rgba(255, 255, 255, 0.5);
}

.top-down-arrow {
    text-align: center;
    color: rgba(255, 255, 255, 0.4);
    font-size: 18px;
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(4px); }
}

.result-section {
    margin-top: 20px;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 16px;
    padding: 24px;
    text-align: center;
    border: 1px solid var(--glass-border);
}

.result-label {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.5);
    margin-bottom: 8px;
}

.result-value {
    font-size: 42px;
    font-weight: 700;
    color: white;
    text-shadow: 0 2px 10px rgba(0,0,0,0.2);
    margin-bottom: 4px;
    word-break: break-all;
}

.result-currency {
    font-size: 16px;
    color: var(--accent-color);
    font-weight: 600;
}

@media (min-width: 600px) {
    .currency-row {
        flex-direction: row;
        align-items: flex-end;
    }
    
    .select-group {
        flex: 1;
    }

    .top-down-arrow {
        padding-bottom: 12px;
        transform: rotate(-90deg);
        animation: none;
        display: flex;
        align-items: center;
        justify-content: center;
    }
}