/* ==========================================================================
   Cruise Tools — Core Design System
   Shared foundation for all CruiseWestCoast interactive tools.
   Design language: clean, trustworthy, travel-oriented, modern.
   ========================================================================== */

:root {
    /* Color palette — deep ocean blue primary */
    --cruisetools-primary: #1a5276;
    --cruisetools-primary-light: #2e86c1;
    --cruisetools-primary-dark: #154360;
    --cruisetools-accent: #27ae60;
    --cruisetools-warning: #f39c12;
    --cruisetools-bg: #f8f9fa;
    --cruisetools-card-bg: #ffffff;
    --cruisetools-text: #2c3e50;
    /* MUST-FIX 12 (Prism's design review, PR #9): #7f8c8d on white at
       13.6px is ~3.48:1, below the 4.5:1 AA minimum for normal text - this
       covers the never-gospel disclosure line, "Prices last reviewed" and
       the hub descriptions. #5f6b6d on white measures 5.51:1 (verified via
       the WCAG relative-luminance formula), comfortably clearing AA. */
    --cruisetools-text-muted: #5f6b6d;
    --cruisetools-border: #e0e4e8;

    /* Elevation */
    --cruisetools-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    --cruisetools-shadow-lg: 0 4px 16px rgba(0, 0, 0, 0.12);

    /* Geometry */
    --cruisetools-radius: 8px;
    --cruisetools-radius-sm: 4px;

    /* Spacing scale */
    --cruisetools-space-xs: 0.5rem;
    --cruisetools-space-sm: 0.75rem;
    --cruisetools-space-md: 1rem;
    --cruisetools-space-lg: 1.5rem;
    --cruisetools-space-xl: 2rem;
}

/* ==========================================================================
   Base container
   ========================================================================== */
.cruisetools-tip-calc {
    max-width: 720px;
    margin: 0 auto;
    padding: var(--cruisetools-space-md);
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    color: var(--cruisetools-text);
    line-height: 1.5;
}

.cruisetools-tip-calc__header {
    text-align: center;
    margin-bottom: var(--cruisetools-space-lg);
}

.cruisetools-tip-calc__header h1 {
    color: var(--cruisetools-primary);
    margin-bottom: var(--cruisetools-space-xs);
}

.cruisetools-lead {
    color: var(--cruisetools-text-muted);
    font-size: 1.05rem;
    max-width: 600px;
    margin: 0 auto;
}

.cruisetools-reviewed-line {
    color: var(--cruisetools-text-muted);
    font-size: 0.85rem;
    margin: var(--cruisetools-space-xs) auto 0;
}

/* ==========================================================================
   Cards
   ========================================================================== */
.cruisetools-card {
    background: var(--cruisetools-card-bg);
    box-shadow: var(--cruisetools-shadow);
    border-radius: var(--cruisetools-radius);
    padding: var(--cruisetools-space-xl);
    margin-bottom: var(--cruisetools-space-lg);
}

.cruisetools-card h3 {
    color: var(--cruisetools-primary);
    margin-top: 0;
    font-size: 1.25rem;
}

.cruisetools-card-desc {
    color: var(--cruisetools-text-muted);
    font-size: 0.9rem;
    margin-bottom: var(--cruisetools-space-md);
}

/* ==========================================================================
   Form fields
   ========================================================================== */
.cruisetools-field {
    margin-bottom: var(--cruisetools-space-md);
}

.cruisetools-field label {
    display: block;
    font-weight: 600;
    color: var(--cruisetools-text);
    margin-bottom: var(--cruisetools-space-xs);
    font-size: 0.9rem;
}

.cruisetools-field select,
.cruisetools-field input[type="text"],
.cruisetools-field input[type="number"],
.cruisetools-field textarea {
    width: 100%;
    padding: var(--cruisetools-space-sm) var(--cruisetools-space-md);
    border: 1px solid var(--cruisetools-border);
    border-radius: var(--cruisetools-radius-sm);
    font-size: 1rem;
    background: #ffffff;
    box-sizing: border-box;
}
.cruisetools-field textarea {
    resize: vertical;
    font-family: inherit;
}
.cruisetools-optional {
    font-weight: 400;
    color: var(--cruisetools-text-muted);
    font-size: 0.8rem;
}

.cruisetools-field select:focus,
.cruisetools-field input:focus {
    outline: none;
    border-color: var(--cruisetools-primary-light);
    box-shadow: 0 0 0 3px rgba(46, 134, 193, 0.15);
}

.cruisetools-field-row {
    display: flex;
    gap: var(--cruisetools-space-md);
    flex-wrap: wrap;
}

.cruisetools-field-row .cruisetools-field {
    flex: 1;
    min-width: 140px;
}

/* MUST-FIX 4 (Prism's design review, PR #9): a $ prefix on a quoted-price
   input, shared by the tip calculator, drinks and wifi (any `$`-amount
   field reuses this rather than a per-tool copy). */
.cruisetools-input-prefix {
    position: relative;
}
.cruisetools-input-prefix__symbol {
    position: absolute;
    left: var(--cruisetools-space-md);
    top: 50%;
    transform: translateY(-50%);
    color: var(--cruisetools-text-muted);
    font-weight: 600;
    pointer-events: none;
}
.cruisetools-input-prefix input {
    padding-left: calc(var(--cruisetools-space-md) * 2) !important;
}

/* ==========================================================================
   Stepper widget (+/-)
   ========================================================================== */
.cruisetools-stepper {
    display: inline-flex;
    align-items: center;
    border: 1px solid var(--cruisetools-border);
    border-radius: var(--cruisetools-radius-sm);
    overflow: hidden;
    width: fit-content;
}

.cruisetools-stepper-btn {
    background: var(--cruisetools-primary-light);
    color: #ffffff;
    border: none;
    padding: var(--cruisetools-space-sm) var(--cruisetools-space-md);
    font-size: 1.2rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.15s ease;
    min-width: 2.5rem;
}

.cruisetools-stepper-btn:hover {
    background: var(--cruisetools-primary);
}

.cruisetools-stepper-btn:disabled {
    background: var(--cruisetools-border);
    cursor: not-allowed;
}

.cruisetools-stepper-value {
    padding: var(--cruisetools-space-sm) var(--cruisetools-space-md);
    min-width: 3rem;
    text-align: center;
    font-weight: 700;
    font-size: 1.1rem;
    background: #ffffff;
}

/* ==========================================================================
   Toggle widget (segmented control)
   ========================================================================== */
.cruisetools-toggle {
    display: inline-flex;
    border: 1px solid var(--cruisetools-primary-light);
    border-radius: var(--cruisetools-radius-sm);
    overflow: hidden;
}

.cruisetools-toggle button {
    background: #ffffff;
    color: var(--cruisetools-primary);
    border: none;
    padding: var(--cruisetools-space-sm) var(--cruisetools-space-lg);
    cursor: pointer;
    font-weight: 600;
    transition: all 0.15s ease;
}

.cruisetools-toggle button.active {
    background: var(--cruisetools-primary);
    color: #ffffff;
}

.cruisetools-toggle button:hover:not(.active) {
    background: rgba(26, 82, 118, 0.1);
}

/* ==========================================================================
   Subtotal rows
   ========================================================================== */
.cruisetools-subtotal {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--cruisetools-space-md);
    margin-top: var(--cruisetools-space-md);
    border-top: 1px solid var(--cruisetools-border);
    font-weight: 700;
    font-size: 1.1rem;
}

.cruisetools-amount {
    font-variant-numeric: tabular-nums;
    color: var(--cruisetools-primary);
    font-weight: 700;
}

/* ==========================================================================
   Buttons
   ========================================================================== */
.cruisetools-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--cruisetools-space-sm) var(--cruisetools-space-lg);
    border: none;
    border-radius: var(--cruisetools-radius-sm);
    font-weight: 600;
    cursor: pointer;
    text-decoration: none;
    font-size: 0.95rem;
    transition: all 0.15s ease;
    min-height: 2.5rem;
}

.cruisetools-btn-primary {
    background: var(--cruisetools-primary);
    color: #ffffff;
}

.cruisetools-btn-primary:hover {
    background: var(--cruisetools-primary-dark);
    transform: translateY(-1px);
}

.cruisetools-btn-secondary {
    background: transparent;
    color: var(--cruisetools-primary);
    border: 2px solid var(--cruisetools-primary);
}

.cruisetools-btn-secondary:hover {
    background: var(--cruisetools-primary);
    color: #ffffff;
}

.cruisetools-btn-link {
    background: transparent;
    color: var(--cruisetools-primary-light);
    text-decoration: underline;
    padding: var(--cruisetools-space-sm);
}

/* ==========================================================================
   Promo callout (bundled package notice)
   ========================================================================== */
.cruisetools-promo-callout {
    background: #eaf4fb;
    border-left: 4px solid var(--cruisetools-primary-light);
    padding: var(--cruisetools-space-md) var(--cruisetools-space-lg);
    border-radius: 0 var(--cruisetools-radius-sm) var(--cruisetools-radius-sm) 0;
    margin: var(--cruisetools-space-md) 0;
}

.cruisetools-promo-callout strong {
    color: var(--cruisetools-primary);
    display: block;
    margin-bottom: var(--cruisetools-space-xs);
}

.cruisetools-promo-callout label {
    display: flex;
    align-items: center;
    gap: var(--cruisetools-space-xs);
    cursor: pointer;
    margin-top: var(--cruisetools-space-sm);
}

.cruisetools-promo-callout input[type="checkbox"] {
    margin: 0;
    width: 1.1rem;
    height: 1.1rem;
    accent-color: var(--cruisetools-primary);
}

/* ==========================================================================
   Summary card
   ========================================================================== */
.cruisetools-summary {
    background: linear-gradient(135deg, #f8f9fa 0%, #eaf4fb 100%);
    border: 2px solid var(--cruisetools-primary-light);
}

.cruisetools-summary-grid {
    display: flex;
    flex-direction: column;
    gap: var(--cruisetools-space-sm);
}

.cruisetools-summary-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--cruisetools-space-sm) 0;
    border-bottom: 1px solid var(--cruisetools-border);
}

.cruisetools-summary-row:last-child {
    border-bottom: none;
}

.cruisetools-summary-total {
    font-size: 1.4rem;
    font-weight: 800;
    padding-top: var(--cruisetools-space-md);
    margin-top: var(--cruisetools-space-sm);
    border-top: 2px solid var(--cruisetools-primary);
}

.cruisetools-summary-total .cruisetools-amount {
    font-size: 1.5rem;
    color: var(--cruisetools-primary-dark);
}

.cruisetools-promo-savings {
    background: #e8f8f0;
    border-left: 4px solid var(--cruisetools-accent);
    padding: var(--cruisetools-space-md);
    border-radius: var(--cruisetools-radius-sm);
    margin-top: var(--cruisetools-space-md);
    color: #1e7e47;
}

/* ==========================================================================
   Actions (share/print/reset)
   ========================================================================== */
.cruisetools-actions {
    display: flex;
    gap: var(--cruisetools-space-md);
    margin-top: var(--cruisetools-space-lg);
    flex-wrap: wrap;
}

.cruisetools-actions .cruisetools-btn {
    flex: 1;
    min-width: 140px;
}

/* ==========================================================================
   Share modal
   ========================================================================== */
.cruisetools-modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 9999;
    display: none;
    align-items: center;
    justify-content: center;
    padding: var(--cruisetools-space-md);
}

.cruisetools-modal[style*="flex"] {
    display: flex !important;
}

.cruisetools-modal-content {
    background: #ffffff;
    padding: var(--cruisetools-space-xl);
    border-radius: 12px;
    max-width: 500px;
    width: 100%;
    box-shadow: var(--cruisetools-shadow-lg);
    animation: cruisetools-modal-in 0.2s ease-out;
}

@keyframes cruisetools-modal-in {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.cruisetools-modal-content h4 {
    margin-top: 0;
    color: var(--cruisetools-primary);
}

.cruisetools-share-url {
    display: flex;
    gap: var(--cruisetools-space-xs);
    margin: var(--cruisetools-space-md) 0;
}

.cruisetools-share-url input {
    flex: 1;
    padding: var(--cruisetools-space-sm) var(--cruisetools-space-md);
    border: 1px solid var(--cruisetools-border);
    border-radius: var(--cruisetools-radius-sm);
    font-size: 0.9rem;
    background: var(--cruisetools-bg);
}

.cruisetools-share-buttons {
    display: flex;
    gap: var(--cruisetools-space-xs);
    flex-wrap: wrap;
    margin-bottom: var(--cruisetools-space-md);
}

.cruisetools-share-buttons .cruisetools-btn {
    flex: 1;
    min-width: 80px;
    font-size: 0.85rem;
    padding: var(--cruisetools-space-sm);
}

/* ==========================================================================
   Responsive
   ========================================================================== */
@media (max-width: 768px) {
    .cruisetools-card {
        padding: var(--cruisetools-space-lg);
    }

    .cruisetools-field-row {
        flex-direction: column;
    }

    .cruisetools-actions {
        flex-direction: column;
    }

    .cruisetools-summary-total {
        font-size: 1.2rem;
    }

    .cruisetools-summary-total .cruisetools-amount {
        font-size: 1.3rem;
    }
}

/* ==========================================================================
   Print
   ========================================================================== */
@media print {
    .cruisetools-btn,
    .cruisetools-actions,
    .cruisetools-modal,
    .cruisetools-promo-callout input,
    .cruisetools-stepper-btn,
    select,
    input {
        display: none;
    }

    .cruisetools-stepper-value {
        padding: 0;
        background: transparent;
    }

    .cruisetools-card {
        box-shadow: none;
        border: 1px solid #ccc;
        break-inside: avoid;
        page-break-inside: avoid;
    }

    .cruisetools-card[data-section="onboard-tips"],
    .cruisetools-card[data-section="shore-excursion"] {
        display: none;
    }

    body.cruisetools-printing .cruisetools-tip-calc {
        max-width: none;
    }
}

/* ==========================================================================
   Hub (1.9.0 step 2) - the tool listing cards are plain links; reset the
   browser's default anchor underline/color so they inherit .cruisetools-card's
   own look.
   ========================================================================== */
.cruisetools-hub__list {
    display: grid;
    gap: var(--cruisetools-space-lg);
}

.cruisetools-hub__item {
    display: block;
    color: inherit;
    text-decoration: none;
    transition: box-shadow 0.15s ease, transform 0.15s ease;
}

.cruisetools-hub__item:hover,
.cruisetools-hub__item:focus {
    box-shadow: var(--cruisetools-shadow-lg);
    transform: translateY(-1px);
}