:root {
    --bg-color: #110e17;
    --card-bg: #221d2f;
    --input-bg: #302a42;
    --input-border: #423859;
    --text-primary: #ffffff;
    --text-secondary: #9389a8;
    --btn-primary: #a855f7;
    --btn-primary-hover: #b975f9;
    --btn-copy-hover: #403657;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

body {
    background-color: var(--bg-color);
    color: var(--text-primary);
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 20px;
}

.container {
    width: 100%;
    max-width: 550px;
}

.main-title {
    color: var(--text-primary);
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 24px;
    text-align: center;
}

.card {
    background-color: var(--card-bg);
    border-radius: 12px;
    padding: 30px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.field-group {
    margin-bottom: 22px;
}

.field-group label {
    display: block;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.5px;
    color: var(--text-primary);
    margin-bottom: 8px;
    text-transform: uppercase;
}

.input-wrapper {
    display: flex;
    gap: 12px;
}

input {
    flex-grow: 1;
    background-color: var(--input-bg);
    border: 1px solid var(--input-border);
    color: var(--text-primary);
    border-radius: 8px;
    padding: 14px 16px;
    font-size: 15px;
    outline: none;
    transition: border-color 0.2s;
}

input:focus {
    border-color: var(--btn-primary);
}

.copy-btn {
    background-color: transparent;
    border: 1px solid var(--input-border);
    color: var(--text-secondary);
    border-radius: 8px;
    width: 52px;
    height: 50px;
    display: flex;
    justify-content: center;
    align-items: center;
    cursor: pointer;
    transition: all 0.2s;
    flex-shrink: 0;
}

.copy-btn:hover {
    background-color: var(--btn-copy-hover);
    color: var(--text-primary);
    border-color: var(--text-secondary);
}

.generate-btn {
    width: 100%;
    background-color: var(--btn-primary);
    color: white;
    border: none;
    border-radius: 8px;
    padding: 16px;
    font-size: 16px;
    font-weight: 700;
    cursor: pointer;
    margin-top: 10px;
    transition: background-color 0.2s;
}

.generate-btn:hover {
    background-color: var(--btn-primary-hover);
}

/* Toast notification */
.toast {
    position: fixed;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    background-color: var(--btn-primary);
    color: white;
    padding: 12px 24px;
    border-radius: 30px;
    font-weight: 600;
    font-size: 14px;
    opacity: 0;
    transition: all 0.3s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    z-index: 1000;
    box-shadow: 0 4px 12px rgba(168, 85, 247, 0.4);
}

.toast.show {
    transform: translateX(-50%) translateY(0);
    opacity: 1;
}