/* ─── Tip Calculator Specific Styles ──────────────────────────────────────── */
/* Split-panel layout: inputs left, live results right.                        */
/* All values use --fu-* design tokens. No hardcoded colors.                   */

/* ── Split Panel Card ────────────────────────────────────────────────────── */
.fu-tc-panel {
    display: grid;
    grid-template-columns: 1fr;
    background: var(--fu-panel-bg);
    border: 1px solid var(--fu-border);
    border-radius: var(--fu-radius);
    overflow: hidden;
    box-shadow: var(--fu-shadow);
}

@media (min-width: 768px) {
    .fu-tc-panel {
        grid-template-columns: 1.15fr 0.85fr;
    }
}

/* ── Left Column: Inputs ─────────────────────────────────────────────────── */
.fu-tc-inputs {
    padding: 1.25rem;
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.fu-tc-field {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

/* ── Right Column: Results ───────────────────────────────────────────────── */
.fu-tc-results {
    background: var(--fu-bg);
    padding: 1.75rem 1.5rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

@media (max-width: 767px) {
    .fu-tc-results {
        border-top: 1px solid var(--fu-border);
    }
}

@media (min-width: 768px) {
    .fu-tc-results {
        border-left: 1px solid var(--fu-border);
    }
}

.fu-tc-result-label {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--fu-text-muted);
    margin: 0 0 0.5rem 0;
}

.fu-tc-hero-value {
    font-size: 3rem;
    font-weight: 800;
    color: var(--fu-accent);
    line-height: 1.1;
    margin-bottom: 1.5rem;
}

.fu-tc-rule {
    height: 1px;
    border-top: 1px dashed var(--fu-border);
    margin-bottom: 1.5rem;
}

.fu-tc-breakdown {
    display: flex;
    flex-direction: column;
    gap: 0.875rem;
}

.fu-tc-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.fu-tc-row-label {
    font-size: 0.875rem;
    color: var(--fu-text-muted);
}

.fu-tc-row-value {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--fu-text);
}

/* ── Input Prefix ($) ────────────────────────────────────────────────────── */
.fu-tc-input-group {
    position: relative;
    display: flex;
    align-items: center;
}

.fu-tc-input-prefix {
    position: absolute;
    left: 0.875rem;
    color: var(--fu-text-muted);
    font-weight: 500;
    pointer-events: none;
    user-select: none;
}

.fu-tc-input-group .fu-input {
    padding-left: 1.75rem;
}

/* ── Tip Slider Header ───────────────────────────────────────────────────── */
.fu-tc-slider-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
}

.fu-tc-pct-input-group {
    position: relative;
    display: flex;
    align-items: center;
    width: 70px;
}

.fu-tc-pct-input {
    text-align: right;
    padding-right: 1.5rem !important;
    padding-left: 0.5rem !important;
    font-size: 0.9rem !important;
}

.fu-tc-pct-suffix {
    position: absolute;
    right: 0.625rem;
    color: var(--fu-text-muted);
    font-size: 0.85rem;
    font-weight: 500;
    pointer-events: none;
    user-select: none;
}

/* ── Slider ──────────────────────────────────────────────────────────────── */
.fu-tc-slider-wrapper {
    display: flex;
    align-items: center;
}

.fu-tc-slider {
    -webkit-appearance: none;
    appearance: none;
    width: 100%;
    height: 6px;
    border-radius: 3px;
    background: var(--fu-border);
    outline: none;
    cursor: pointer;
}

.fu-tc-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--fu-accent);
    cursor: pointer;
    transition: transform var(--fu-transition);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.15);
}

.fu-tc-slider::-webkit-slider-thumb:hover {
    transform: scale(1.15);
    background: var(--fu-accent-hover);
}

.fu-tc-slider::-moz-range-thumb {
    width: 18px;
    height: 18px;
    border: none;
    border-radius: 50%;
    background: var(--fu-accent);
    cursor: pointer;
    transition: transform var(--fu-transition);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.15);
}

.fu-tc-slider::-moz-range-thumb:hover {
    transform: scale(1.15);
    background: var(--fu-accent-hover);
}

/* ── Quick Presets ───────────────────────────────────────────────────────── */
.fu-tc-presets {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 0.375rem;
}

.fu-tc-preset-btn {
    padding: 0.375rem 0;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--fu-text-muted);
    background: var(--fu-panel-bg);
    border: 1px solid var(--fu-border);
    border-radius: var(--fu-radius-sm);
    cursor: pointer;
    text-align: center;
    transition: all var(--fu-transition);
}

.fu-tc-preset-btn:hover {
    color: var(--fu-accent);
    border-color: var(--fu-accent);
    background: var(--fu-accent-light);
}

.fu-tc-preset-btn.active {
    color: var(--fu-btn-primary-text);
    background: var(--fu-accent);
    border-color: var(--fu-accent);
}

/* ── Split Bill Stepper ──────────────────────────────────────────────────── */
.fu-tc-split-row {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
}

.fu-tc-split-label-group {
    display: flex;
    flex-direction: column;
    gap: 0.125rem;
}

.fu-tc-split-hint {
    font-size: 0.75rem;
    color: var(--fu-text-muted);
}

.fu-tc-stepper {
    display: flex;
    align-items: center;
    border: 1px solid var(--fu-border);
    border-radius: var(--fu-radius-sm);
    background: var(--fu-input-bg);
    overflow: hidden;
    height: 36px;
    width: 110px;
    flex-shrink: 0;
    box-sizing: border-box;
}

.fu-tc-stepper-btn {
    width: 32px;
    height: 100%;
    border: none;
    background: transparent;
    color: var(--fu-text);
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    line-height: 1;
    transition: background var(--fu-transition);
    user-select: none;
}

.fu-tc-stepper-btn:hover {
    background: var(--fu-border);
}

.fu-tc-stepper-input {
    flex: 1;
    height: 100%;
    border: none !important;
    background: transparent !important;
    text-align: center;
    padding: 0 !important;
    font-size: 0.95rem;
    font-weight: 600;
    box-shadow: none !important;
    -moz-appearance: textfield;
}

.fu-tc-stepper-input::-webkit-outer-spin-button,
.fu-tc-stepper-input::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

#fu-tc-input-bill::-webkit-outer-spin-button,
#fu-tc-input-bill::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

#fu-tc-input-bill {
    -moz-appearance: textfield;
}

/* ── Responsive ──────────────────────────────────────────────────────────── */
@media (max-width: 480px) {
    .fu-tc-presets {
        grid-template-columns: repeat(3, 1fr);
        gap: 0.5rem;
    }

    .fu-tc-hero-value {
        font-size: 2.25rem;
    }
}