@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:wght@600;700&family=DM+Sans:wght@300;400;500;600&display=swap');

/* ── Reset & base ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
    --color-bg:       #f5f2ee;
    --color-surface:  #ffffff;
    --color-primary:  #c0622a;
    --color-primary-light: #f4e8df;
    --color-primary-dark:  #9a4b1e;
    --color-accent:   #3a7d6e;
    --color-text:     #2c2a27;
    --color-muted:    #7a766f;
    --color-border:   #e4ddd5;
    --color-result-bg: #1e3a34;
    --color-result-text: #d4ede8;

    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 20px;

    --shadow-sm: 0 1px 4px rgba(0,0,0,.06);
    --shadow-md: 0 4px 16px rgba(0,0,0,.09);
    --shadow-lg: 0 8px 32px rgba(0,0,0,.12);

    --transition: 0.22s ease;
}

html { scroll-behavior: smooth; }

body {
    font-family: 'DM Sans', system-ui, sans-serif;
    background: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    min-height: 100vh;
}

/* ── Layout ── */
.app {
    max-width: 680px;
    margin: 0 auto;
    padding: 2rem 1rem 4rem;
}

/* ── Header ── */
.app-header {
    text-align: center;
    margin-bottom: 2.5rem;
    padding-top: 1rem;
}

.app-header h1 {
    font-family: 'Playfair Display', Georgia, serif;
    font-size: clamp(2rem, 5vw, 2.8rem);
    color: var(--color-text);
    letter-spacing: -0.02em;
    line-height: 1.15;
}

.subtitle {
    margin-top: 0.5rem;
    color: var(--color-muted);
    font-size: 1rem;
    font-weight: 300;
}

/* ── Cards ── */
.card {
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    padding: 1.75rem 1.75rem;
    margin-bottom: 1.25rem;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--color-border);
}

.card-title {
    font-family: 'Playfair Display', Georgia, serif;
    font-size: 1.25rem;
    color: var(--color-text);
    margin-bottom: 0.35rem;
}

.card-hint {
    font-size: 0.85rem;
    color: var(--color-muted);
    margin-bottom: 1.25rem;
}

/* ── Ingredient rows ── */
.ingredients-list {
    display: flex;
    flex-direction: column;
    gap: 0.65rem;
    margin-bottom: 1rem;
}

.ingredient-row {
    display: grid;
    grid-template-columns: 1fr 80px 70px 36px;
    gap: 0.5rem;
    align-items: center;
    animation: fadeIn 0.2s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(-6px); }
    to   { opacity: 1; transform: translateY(0); }
}

.ingredient-row .row-number {
    display: none;
}

.input-field {
    width: 100%;
    padding: 0.6rem 0.75rem;
    border: 1.5px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-family: 'DM Sans', sans-serif;
    font-size: 0.92rem;
    color: var(--color-text);
    background: #faf8f6;
    transition: border-color var(--transition), box-shadow var(--transition);
    outline: none;
}

.input-field:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(192, 98, 42, 0.12);
    background: #fff;
}

.input-field::placeholder { color: #b5afa7; }

.input-field-amount {
    text-align: right;
}

/* unit select */
.unit-select {
    width: 100%;
    padding: 0.6rem 0.4rem;
    border: 1.5px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-family: 'DM Sans', sans-serif;
    font-size: 0.82rem;
    color: var(--color-text);
    background: #faf8f6;
    cursor: pointer;
    outline: none;
    transition: border-color var(--transition);
    appearance: none;
    text-align: center;
}

.unit-select:focus { border-color: var(--color-primary); }

/* remove button */
.btn-remove {
    width: 34px;
    height: 34px;
    border: none;
    background: #fbeae3;
    color: var(--color-primary);
    border-radius: 50%;
    font-size: 1.1rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background var(--transition), transform var(--transition);
    flex-shrink: 0;
    line-height: 1;
}

.btn-remove:hover {
    background: var(--color-primary);
    color: #fff;
    transform: scale(1.08);
}

/* add button */
.btn-add {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    background: none;
    border: 2px dashed var(--color-border);
    border-radius: var(--radius-sm);
    padding: 0.6rem 1rem;
    font-family: 'DM Sans', sans-serif;
    font-size: 0.9rem;
    color: var(--color-muted);
    cursor: pointer;
    width: 100%;
    transition: border-color var(--transition), color var(--transition), background var(--transition);
    margin-top: 0.25rem;
}

.btn-add:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
    background: var(--color-primary-light);
}

.btn-icon { font-size: 1.1rem; font-weight: 600; }

/* ── Base portions ── */
.base-portions-row {
    display: flex;
    align-items: center;
    gap: 0.9rem;
    flex-wrap: wrap;
}

.input-label {
    font-size: 0.92rem;
    color: var(--color-muted);
    white-space: nowrap;
}

.number-input-wrap {
    display: flex;
    align-items: center;
    gap: 0;
    border: 1.5px solid var(--color-border);
    border-radius: var(--radius-sm);
    overflow: hidden;
}

.num-btn {
    width: 36px;
    height: 38px;
    border: none;
    background: #f5f2ee;
    color: var(--color-text);
    font-size: 1.2rem;
    cursor: pointer;
    transition: background var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

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

.number-input {
    width: 56px;
    height: 38px;
    border: none;
    border-left: 1.5px solid var(--color-border);
    border-right: 1.5px solid var(--color-border);
    text-align: center;
    font-family: 'DM Sans', sans-serif;
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-text);
    background: #fff;
    outline: none;
    -moz-appearance: textfield;
}

.number-input::-webkit-inner-spin-button,
.number-input::-webkit-outer-spin-button { appearance: none; }

/* ── Slider ── */
.slider-wrap {
    margin-bottom: 1.25rem;
}

.slider-labels {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    margin-bottom: 0.6rem;
    font-size: 0.8rem;
    color: var(--color-muted);
    position: relative;
}

.slider-value-bubble {
    background: var(--color-primary);
    color: #fff;
    border-radius: 20px;
    padding: 0.25rem 0.75rem;
    font-size: 0.95rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.3rem;
    box-shadow: 0 2px 8px rgba(192,98,42,.35);
    transition: background var(--transition);
}

.slider-value-unit { font-weight: 300; font-size: 0.8rem; opacity: 0.85; }

.slider {
    width: 100%;
    height: 6px;
    appearance: none;
    background: linear-gradient(to right, var(--color-primary) var(--fill, 0%), var(--color-border) var(--fill, 0%));
    border-radius: 99px;
    outline: none;
    cursor: pointer;
    transition: background var(--transition);
}

.slider::-webkit-slider-thumb {
    appearance: none;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: var(--color-surface);
    border: 3px solid var(--color-primary);
    box-shadow: 0 2px 8px rgba(192,98,42,.3);
    cursor: grab;
    transition: transform var(--transition), box-shadow var(--transition);
}

.slider::-webkit-slider-thumb:active { cursor: grabbing; transform: scale(1.15); }
.slider::-moz-range-thumb {
    width: 22px; height: 22px;
    border-radius: 50%;
    background: #fff;
    border: 3px solid var(--color-primary);
    cursor: grab;
}

.slider-scale {
    display: flex;
    justify-content: space-between;
    margin-top: 0.45rem;
    padding: 0 1px;
}

.scale-tick {
    font-size: 0.7rem;
    color: var(--color-border);
    user-select: none;
    cursor: pointer;
    transition: color var(--transition);
}

.scale-tick:hover { color: var(--color-primary); }
.scale-tick.active { color: var(--color-primary); font-weight: 600; }

/* Quick buttons */
.slider-quick-btns {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    flex-wrap: wrap;
    margin-top: 0.5rem;
}

.quick-label {
    font-size: 0.78rem;
    color: var(--color-muted);
    margin-right: 0.2rem;
}

.quick-btn {
    padding: 0.25rem 0.65rem;
    border: 1.5px solid var(--color-border);
    border-radius: 99px;
    background: none;
    font-family: 'DM Sans', sans-serif;
    font-size: 0.82rem;
    color: var(--color-muted);
    cursor: pointer;
    transition: all var(--transition);
}

.quick-btn:hover, .quick-btn.active {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: #fff;
}

/* ── Result ── */
.card-result {
    background: var(--color-result-bg);
    border-color: transparent;
    color: var(--color-result-text);
}

.result-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1.25rem;
}

.card-result .card-title {
    color: #fff;
}

.result-badge {
    background: rgba(255,255,255,.12);
    border: 1px solid rgba(255,255,255,.2);
    border-radius: 99px;
    padding: 0.3rem 1rem;
    font-size: 0.9rem;
    font-weight: 600;
    color: #fff;
    display: flex;
    align-items: center;
    gap: 0.35rem;
}

.result-list {
    display: flex;
    flex-direction: column;
    gap: 0.55rem;
    margin-bottom: 1.5rem;
}

.result-empty {
    color: rgba(212,237,232,.5);
    font-size: 0.9rem;
    font-style: italic;
}

.result-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.65rem 0.85rem;
    background: rgba(255,255,255,.07);
    border-radius: var(--radius-sm);
    border: 1px solid rgba(255,255,255,.08);
    animation: fadeIn 0.2s ease;
    gap: 0.5rem;
}

.result-name {
    font-size: 0.95rem;
    color: rgba(255,255,255,.88);
    flex: 1;
}

.result-amount {
    font-weight: 600;
    font-size: 1rem;
    color: #fff;
    white-space: nowrap;
}

.result-unit {
    font-size: 0.8rem;
    color: rgba(255,255,255,.55);
    margin-left: 0.25rem;
}

/* copy button */
.btn-copy {
    width: 100%;
    padding: 0.75rem;
    background: rgba(255,255,255,.12);
    border: 1.5px solid rgba(255,255,255,.25);
    border-radius: var(--radius-sm);
    font-family: 'DM Sans', sans-serif;
    font-size: 0.92rem;
    font-weight: 500;
    color: #fff;
    cursor: pointer;
    transition: background var(--transition);
    letter-spacing: 0.01em;
}

.btn-copy:hover { background: rgba(255,255,255,.22); }
.btn-copy.copied { background: var(--color-accent); border-color: var(--color-accent); }

/* ── Responsive ── */
@media (max-width: 480px) {
    .ingredient-row {
        grid-template-columns: 1fr 70px 62px 32px;
        gap: 0.35rem;
    }

    .card { padding: 1.25rem 1rem; }
    .app { padding: 1rem 0.75rem 3rem; }
}