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

:root {
    --bg: #F6F1EB;
    --card: #FFFFFF;
    --text: #2C2416;
    --text-muted: #6B5E4F;
    --accent: #C4653A;
    --accent-light: #F5E6DE;
    --border: #E4DDD4;
    --result-bg: #2C2416;
    --result-text: #F6F1EB;
    --shadow: 0 1px 3px rgba(44, 36, 22, 0.06), 0 8px 24px rgba(44, 36, 22, 0.08);
    --radius: 12px;
}

body {
    font-family: 'DM Sans', sans-serif;
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
    line-height: 1.5;
}

.container {
    max-width: 520px;
    margin: 0 auto;
    padding: 48px 20px 80px;
}

header {
    text-align: center;
    margin-bottom: 40px;
}

header h1 {
    font-family: 'DM Serif Display', serif;
    font-size: 2rem;
    font-weight: 400;
    letter-spacing: -0.02em;
    margin-bottom: 6px;
}

header p {
    color: var(--text-muted);
    font-size: 1rem;
}

.card {
    background: var(--card);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 28px;
    margin-bottom: 20px;
}

label {
    display: block;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--text-muted);
    margin-bottom: 8px;
}

.search-wrap {
    position: relative;
    margin-bottom: 24px;
}

.search-wrap svg {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    pointer-events: none;
}

#ingredientInput {
    width: 100%;
    padding: 12px 38px 12px 42px;
    border: 1.5px solid var(--border);
    border-radius: 10px;
    font-family: inherit;
    font-size: 1rem;
    color: var(--text);
    background: var(--bg);
    outline: none;
    transition: border-color 0.2s;
}

#ingredientInput:focus {
    border-color: var(--accent);
}

.clear-btn {
    display: none;
    position: absolute;
    right: 10px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    font-size: 1.2rem;
    line-height: 1;
    color: var(--text-muted);
    cursor: pointer;
    padding: 4px 6px;
}

.clear-btn:hover {
    color: var(--text);
}

.clear-btn.visible {
    display: block;
}

.dropdown {
    position: absolute;
    top: calc(100% + 4px);
    left: 0;
    right: 0;
    background: var(--card);
    border: 1.5px solid var(--border);
    border-radius: 10px;
    box-shadow: 0 12px 32px rgba(44, 36, 22, 0.12);
    max-height: 240px;
    overflow-y: auto;
    z-index: 10;
    display: none;
}

.dropdown.open {
    display: block;
}

.dropdown-item {
    padding: 10px 14px;
    cursor: pointer;
    font-size: 1.1rem;
    transition: background 0.12s;
    border-bottom: 1px solid var(--border);
}

.dropdown-item:last-child {
    border-bottom: none;
}

.dropdown-item:hover,
.dropdown-item.active {
    background: var(--accent-light);
}

.dropdown-item mark {
    background: none;
    color: var(--accent);
    font-weight: 600;
}

.amount-row {
    display: flex;
    gap: 12px;
    margin-bottom: 0;
}

.amount-row>div {
    flex: 1;
}

#amountInput {
    width: 100%;
    padding: 12px 14px;
    border: 1.5px solid var(--border);
    border-radius: 10px;
    font-family: inherit;
    font-size: 1rem;
    color: var(--text);
    background: var(--bg);
    outline: none;
    transition: border-color 0.2s;
    -moz-appearance: textfield;
}

#amountInput::-webkit-inner-spin-button,
#amountInput::-webkit-outer-spin-button {
    -webkit-appearance: none;
}

#amountInput:focus {
    border-color: var(--accent);
}

#unitSelect {
    width: 100%;
    padding: 12px 14px;
    border: 1.5px solid var(--border);
    border-radius: 10px;
    font-family: inherit;
    font-size: 1rem;
    color: var(--text);
    background: var(--bg);
    outline: none;
    cursor: pointer;
    -webkit-appearance: none;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg width='12' height='8' viewBox='0 0 12 8' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1.5L6 6.5L11 1.5' stroke='%238A7D6B' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 14px center;
    padding-right: 36px;
    transition: border-color 0.2s;
}

#unitSelect:focus {
    border-color: var(--accent);
}

/* Result */
.result {
    background: var(--result-bg);
    border-radius: var(--radius);
    padding: 28px;
    text-align: center;
    color: var(--result-text);
    opacity: 0;
    transform: translateY(8px);
    transition: opacity 0.35s ease, transform 0.35s ease;
}

.result.visible {
    opacity: 1;
    transform: translateY(0);
}

.result-label {
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    opacity: 0.5;
    margin-bottom: 8px;
}

.result-value {
    font-family: 'DM Serif Display', serif;
    font-size: 2.8rem;
    font-weight: 400;
    line-height: 1.1;
}

.result-value .unit {
    font-size: 1.4rem;
    opacity: 0.6;
    margin-left: 4px;
}

.result-range {
    font-size: 0.85rem;
    opacity: 0.5;
    margin-top: 4px;
}

.result-ingredient {
    margin-top: 16px;
    padding-top: 16px;
    border-top: 1px solid rgba(246, 241, 235, 0.1);
    font-size: 0.9rem;
    opacity: 0.6;
}

.no-result {
    color: var(--text-muted);
    text-align: center;
    padding: 20px;
    font-size: 1rem;
}

.source-link {
    text-align: center;
    margin-top: 32px;
    font-size: 0.9rem;
    color: var(--text-muted);
}

.source-link a {
    color: var(--accent);
    text-decoration: none;
}

.source-link a:hover {
    text-decoration: underline;
}

.footer-sep {
    margin: 0 8px;
}

@media (max-width: 480px) {
    .container {
        padding: 32px 16px 60px;
    }

    .card {
        padding: 20px;
    }

    .result {
        padding: 24px;
    }

    .result-value {
        font-size: 2.2rem;
    }

    header h1 {
        font-size: 1.6rem;
    }
}