/* ==========================================================================
   CONTACT US PAGE
   Additive rules only, same discipline as _services.css: modifiers on
   existing components (.du-hero, .du-cta--compact) plus new,
   page-specific classes for markup that has no existing equivalent
   (the presence/map visual, the contact grid, the operational-flow card,
   the discovery-call availability widget). No new color tokens — every
   value below already exists in _variable.css.
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. PRESENCE HERO — .du-hero--contact modifier
   Same content/media split proportions as .du-hero--services, but not
   viewport-height-locked (this is an editorial intro section, not a
   full-bleed landing hero).
   -------------------------------------------------------------------------- */
.du-hero--contact {
    padding-top: var(--space-lg);
    padding-bottom: var(--space-lg);
}

.du-contact-hero {
    display: flex;
    flex-direction: column;
    gap: var(--space-xl);
    /* .du-hero__inner (the homepage hero's base rules) sets height:100vh
       and overflow:hidden for its full-bleed layout — reset both here,
       same as .du-about-hero already does for the About page hero. */
    height: auto;
    overflow: visible;
}

.du-contact-hero .du-hero__content {
    margin: 0;
    max-width: 640px;
}

.du-contact-hero .du-hero__headline {
    margin: 0 0 var(--space-md);
}

.du-contact-hero .du-hero__description {
    max-width: 56ch;
}

/* ---- Location list ---- */
.du-contact-locations {
    list-style: none;
    margin: var(--space-lg) 0 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.du-contact-location {
    display: flex;
    align-items: flex-start;
    gap: var(--space-sm);
}

.du-contact-location__icon {
    flex-shrink: 0;
    color: var(--primary);
    margin-top: 2px;
}

.du-contact-location__name {
    font-family: var(--font-sans);
    font-weight: 700;
    color: var(--on-background);
    margin: 0;
}

.du-contact-location__address {
    font-family: var(--font-sans);
    font-size: var(--body-md-size);
    color: var(--on-surface-variant);
    margin: 2px 0 0;
}

/* --------------------------------------------------------------------------
   2. LOCATION / MAP VISUAL
   Deliberately not a real map embed (no API key, no third-party request):
   a lightweight, self-contained illustration built from existing tokens —
   a muted surface, faint grid "streets", and positioned marker dots.
   Marked aria-hidden — the real address information already exists as
   accessible text in .du-contact-locations above.
   -------------------------------------------------------------------------- */
.du-contact-map {
    position: relative;
    border-radius: var(--radius-xl);
    overflow: hidden;
    background-color: var(--surface);
    box-shadow: var(--shadow-level-1);
    border: var(--border-width) solid var(--border);
}

.du-contact-map__chrome {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: var(--space-md);
    padding: var(--space-sm) var(--space-md);
    border-bottom: var(--border-width) solid var(--border);
    background-color: var(--surface);
}

.du-contact-map__chrome-item {
    font-family: var(--font-sans);
    font-size: 13px;
    font-weight: 600;
    color: var(--on-surface-variant);
}

.du-contact-map__chrome-item--active {
    color: var(--primary);
    text-decoration: underline;
    text-underline-offset: 3px;
}

.du-contact-map__viewport {
    position: relative;
    width: 100%;
    aspect-ratio: 16 / 10;
    background:
        linear-gradient(120deg, rgba(80, 152, 190, 0.10), rgba(80, 152, 190, 0) 55%),
        repeating-linear-gradient(0deg, var(--outline-variant) 0 1px, transparent 1px 64px),
        repeating-linear-gradient(90deg, var(--outline-variant) 0 1px, transparent 1px 64px),
        var(--surface-container-low);
    background-blend-mode: normal, multiply, multiply, normal;
    opacity: 1;
}

.du-contact-map__river {
    position: absolute;
    inset: auto 0 8% 0;
    height: 18%;
    background-color: var(--surface-dim);
    transform: skewY(-3deg);
    opacity: 0.7;
}

.du-contact-map__title {
    position: absolute;
    top: var(--space-md);
    left: var(--space-md);
    right: var(--space-md);
    font-family: var(--font-serif);
    font-size: 22px;
    color: var(--on-background);
    margin: 0;
    max-width: 20ch;
}

.du-contact-map__marker {
    position: absolute;
    transform: translate(-50%, -100%);
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background-color: var(--on-background);
    color: var(--surface);
    border-radius: var(--radius-full);
    padding: 4px 10px 4px 6px;
    font-family: var(--font-sans);
    font-size: 11px;
    font-weight: 600;
    white-space: nowrap;
    box-shadow: var(--shadow-level-1);
}

.du-contact-map__marker::after {
    content: "";
    position: absolute;
    left: 14px;
    bottom: -5px;
    width: 8px;
    height: 8px;
    background-color: inherit;
    transform: rotate(45deg);
    border-radius: 0 0 2px 0;
}

.du-contact-map__marker-dot {
    width: 7px;
    height: 7px;
    border-radius: var(--radius-full);
    background-color: var(--inverse-primary);
    flex-shrink: 0;
}

.du-contact-map__marker--primary {
    background-color: var(--primary);
}

.du-contact-map__marker--primary .du-contact-map__marker-dot {
    background-color: var(--success);
}

.du-contact-map__status {
    position: absolute;
    left: var(--space-md);
    bottom: var(--space-md);
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    background-color: var(--surface);
    border-radius: var(--radius-full);
    padding: var(--space-xs) var(--space-sm);
    box-shadow: var(--shadow-level-2);
    font-family: var(--font-sans);
    font-size: 13px;
    font-weight: 600;
    color: var(--on-background);
}

.du-contact-map__status-dot {
    width: 8px;
    height: 8px;
    border-radius: var(--radius-full);
    background-color: var(--success);
    flex-shrink: 0;
    animation: du-status-pulse 2s var(--ease-standard) infinite;
}

@keyframes du-status-pulse {
    0%, 100% { box-shadow: 0 0 0 0 rgba(61, 139, 104, 0.45); }
    50%      { box-shadow: 0 0 0 6px rgba(61, 139, 104, 0); }
}

@media (prefers-reduced-motion: reduce) {
    .du-contact-map__status-dot {
        animation: none;
    }
}

@media (min-width: 1025px) {
    .du-contact-hero {
        flex-direction: row;
        align-items: center;
    }

    .du-contact-hero .du-hero__content {
        flex: 0 0 42%;
    }

    .du-contact-map {
        flex: 1;
        min-width: 0;
    }
}

/* --------------------------------------------------------------------------
   3. CONTACT GRID — Direct Inquiry (wide, left) + sidebar (narrow, right)
   -------------------------------------------------------------------------- */
.du-contact-grid {
    padding-top: var(--space-lg);
    padding-bottom: var(--space-xl);
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
}

.du-contact-grid__sidebar {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
}

@media (min-width: 1025px) {
    .du-contact-grid {
        flex-direction: row;
        align-items: flex-start;
    }

    .du-contact-grid__main {
        flex: 1 1 62%;
        min-width: 0;
    }

    .du-contact-grid__sidebar {
        flex: 1 1 38%;
        min-width: 0;
        position: sticky;
        top: var(--space-md);
    }
}

/* ---- Direct Inquiry card ---- */
.du-contact-form-card {
    background-color: var(--surface);
    border: var(--border-width) solid var(--border);
    border-radius: var(--radius-xl);
    padding: var(--space-lg) var(--space-md);
    box-shadow: var(--shadow-level-1);
}

.du-contact-form-card__heading {
    margin: 0 0 var(--space-xs);
}

.du-contact-form-card__description {
    color: var(--on-surface-variant);
    max-width: 60ch;
    margin: 0 0 var(--space-lg);
}

.du-contact-form__row {
    display: flex;
    flex-direction: column;
    gap: 0 var(--space-md);
}

@media (min-width: 640px) {
    .du-contact-form__row {
        flex-direction: row;
    }

    .du-contact-form__row .du-form-field {
        flex: 1 1 0;
    }
}

.du-contact-form__submit {
    width: 100%;
    justify-content: center;
    margin-top: var(--space-xs);
    position: relative;
}

@media (min-width: 640px) {
    .du-contact-form__submit {
        width: auto;
    }
}

.du-contact-form__submit-icon {
    display: inline-flex;
    transition: transform var(--transition-fast);
}

.du-contact-form__submit:hover .du-contact-form__submit-icon {
    transform: translateX(3px);
}

/* Loading state — button keeps its size/label (screen readers still get
   the text), a small spinner is added and the button is disabled. */
.du-contact-form__submit[aria-busy="true"] {
    color: transparent;
    pointer-events: none;
}

.du-contact-form__spinner {
    display: none;
    position: absolute;
    top: 50%;
    left: 50%;
    width: 18px;
    height: 18px;
    margin: -9px 0 0 -9px;
    border-radius: 50%;
    border: 2px solid rgba(255, 255, 255, 0.35);
    border-top-color: var(--on-primary);
    animation: du-spin 0.7s linear infinite;
}

.du-contact-form__submit[aria-busy="true"] .du-contact-form__spinner {
    display: block;
}

@keyframes du-spin {
    to { transform: rotate(360deg); }
}

@media (prefers-reduced-motion: reduce) {
    .du-contact-form__spinner {
        animation-duration: 1.4s;
    }
}

/* --------------------------------------------------------------------------
   4. OPERATIONAL FLOW CARD
   Light-blue card using --surface-container-low (already the theme's
   "info surface" token, e.g. search field inverse states) — no new color.
   -------------------------------------------------------------------------- */
.du-operational-flow {
    background-color: var(--surface-container-low);
    border-radius: var(--radius-xl);
    padding: var(--space-md);
}

.du-operational-flow__header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: var(--space-sm);
    margin-bottom: var(--space-md);
}

.du-operational-flow__heading {
    margin: 0;
}

.du-operational-flow__icon {
    flex-shrink: 0;
    width: 44px;
    height: 44px;
    border-radius: var(--radius-full);
    background-color: var(--surface);
    color: var(--primary);
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.du-operational-flow__rows {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.du-operational-flow__row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-sm);
    padding-bottom: var(--space-sm);
    border-bottom: var(--border-width) solid var(--outline-variant);
}

.du-operational-flow__row:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.du-operational-flow__label {
    font-family: var(--font-sans);
    font-weight: 600;
    color: var(--on-background);
}

.du-operational-flow__value {
    font-family: var(--font-mono);
    font-size: 14px;
    color: var(--on-surface-variant);
}

.du-operational-flow__value--reserved {
    font-family: var(--font-sans);
    font-weight: 700;
    color: var(--critical);
}

.du-operational-flow__note {
    font-style: italic;
    color: var(--on-surface-variant);
    margin: var(--space-md) 0 0;
}

/* --------------------------------------------------------------------------
   5. DISCOVERY CALL CARD
   Extends .du-cta--compact (the existing dark, vertical CTA card) rather
   than introducing an unrelated dark-card component — same background,
   radius, icon-badge and inverse-button language, plus the
   page-specific availability widget below.
   -------------------------------------------------------------------------- */
.du-cta--discovery {
    max-width: none;
}


.du-discovery-availability {
    width: 100%;
    background-color: var(--primary-container);
    border-radius: var(--radius-md);
    padding: var(--space-sm);
    margin: var(--space-sm) 0 var(--space-md);
}

.du-discovery-availability__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-xs);
    margin-bottom: var(--space-sm);
}

.du-discovery-availability__label {
    font-family: var(--font-sans);
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--on-primary-container);
}

.du-discovery-availability__next {
    font-family: var(--font-sans);
    font-size: 11px;
    font-weight: 700;
    color: var(--on-secondary-container);
    background-color: var(--secondary-container);
    border-radius: var(--radius-full);
    padding: 3px 8px;
    white-space: nowrap;
}

.du-discovery-availability__slots {
    display: grid;
    grid-template-columns: repeat(7, minmax(0, 1fr));
    gap: 6px;
}

.du-discovery-availability__slot {
    height: 28px;
    border-radius: var(--radius-sm);
    background-color: rgba(255, 255, 255, 0.12);
}

.du-discovery-availability__slot--available {
    background-color: rgba(255, 255, 255, 0.28);
}

.du-discovery-availability__slot--selected {
    background-color: var(--success);
}

/* --------------------------------------------------------------------------
   6. RESPONSIVE — tablet & mobile
   -------------------------------------------------------------------------- */
@media (max-width: 1024px) {
    .du-contact-map__title {
        font-size: 18px;
    }
}

@media (max-width: 767px) {
    .du-hero--contact {
        padding-top: var(--space-md);
        padding-bottom: var(--space-md);
    }

    .du-contact-form-card,
    .du-operational-flow,
    .du-cta--discovery {
        padding: var(--space-md) var(--space-sm);
    }

    .du-contact-map__title {
        font-size: 16px;
        max-width: 16ch;
    }
}