:root {
    --bg: #1a1b26;
    --bg-panel: #1f2335;
    --bg-elevated: #24283b;
    --border: #3b4261;
    --border-subtle: #292e42;
    --text: #c0caf5;
    --text-muted: #565f89;
    --text-dim: #a9b1d6;
    --blue: #7aa2f7;
    --cyan: #7dcfff;
    --magenta: #bb9af7;
    --green: #9ece6a;
    --yellow: #e0af68;
    --red: #f7768e;
    --orange: #ff9e64;
    --night: #15161e;
    --map-land: #2a3150;
    --map-ocean: #16161e;
    --radius: 8px;
    --shadow: 0 8px 24px rgba(0, 0, 0, 0.35);
    --font: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

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

html,
body {
    margin: 0;
    height: 100%;
    background: var(--bg);
    color: var(--text);
    font-family: var(--font);
    line-height: 1.5;
}

button,
input,
select,
textarea {
    font: inherit;
    color: inherit;
}

.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    border: 0;
}

.app {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.app-header {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    align-items: center;
    justify-content: space-between;
    padding: 0.75rem 1rem;
    background: var(--bg-panel);
    border-bottom: 1px solid var(--border-subtle);
}

.app-title {
    margin: 0;
    font-size: 1.25rem;
    color: var(--blue);
}

.app-subtitle {
    margin: 0;
    font-size: 0.85rem;
    color: var(--text-muted);
}

.app-header__controls {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    align-items: center;
}

.search-field input {
    min-width: 200px;
    padding: 0.45rem 0.65rem;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--bg);
}

.header-actions {
    display: flex;
    gap: 0.35rem;
    align-items: center;
}

.tag-filter {
    display: flex;
    flex-wrap: wrap;
    gap: 0.35rem;
}

.tag-chip {
    padding: 0.2rem 0.55rem;
    border: 1px solid var(--border);
    border-radius: 999px;
    background: transparent;
    color: var(--text-dim);
    cursor: pointer;
    font-size: 0.8rem;
}

.tag-chip.is-active {
    border-color: var(--cyan);
    color: var(--cyan);
    background: rgba(125, 207, 255, 0.08);
}

.btn {
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--bg-elevated);
    color: var(--text);
    padding: 0.45rem 0.75rem;
    cursor: pointer;
}

.btn:hover {
    border-color: var(--blue);
}

.btn--primary {
    background: var(--blue);
    border-color: var(--blue);
    color: var(--bg);
}

.btn--ghost {
    background: transparent;
}

.btn--danger {
    background: transparent;
    border-color: var(--red);
    color: var(--red);
}

.btn--icon {
    width: 2.25rem;
    height: 2.25rem;
    padding: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    line-height: 1;
}

#btn-settings {
    font-size: 1.4rem;
}

.btn--sm {
    font-size: 0.85rem;
    padding: 0.3rem 0.55rem;
}

.app-body {
    display: flex;
    flex: 1;
    min-height: 0;
}

.sidebar {
    display: flex;
    flex-direction: column;
    flex: 0 0 clamp(260px, 28vw, 320px);
    width: clamp(260px, 28vw, 320px);
    border-right: 1px solid var(--border-subtle);
    background: var(--bg-panel);
    min-height: 0;
    transition: width 0.25s ease, flex-basis 0.25s ease, opacity 0.2s ease, border-color 0.25s ease;
}

.app-body.is-sidebar-collapsed .sidebar {
    flex-basis: 0;
    width: 0;
    opacity: 0;
    overflow: hidden;
    border-right-color: transparent;
    pointer-events: none;
}

.sidebar__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.5rem;
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--border-subtle);
}

.sidebar__header h2 {
    margin: 0;
    font-size: 1rem;
}

.sidebar__list {
    overflow: auto;
    padding: 0.5rem;
    flex: 1;
}

.sidebar__empty {
    padding: 1rem;
    color: var(--text-muted);
    font-size: 0.9rem;
}

.contact-card {
    position: relative;
    display: block;
    width: 100%;
    margin-bottom: 0.4rem;
}

.contact-card__main {
    display: block;
    width: 100%;
    text-align: left;
    padding: 0.65rem 0.75rem;
    padding-right: 3.25rem;
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius);
    background: var(--bg);
    cursor: pointer;
}

.contact-card:hover .contact-card__main,
.contact-card.is-selected .contact-card__main {
    border-color: var(--blue);
}

.contact-card__edit {
    position: absolute;
    top: 0.45rem;
    right: 0.45rem;
    padding: 0.2rem 0.5rem;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--bg-elevated);
    color: var(--cyan);
    font-size: 0.75rem;
    cursor: pointer;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.15s ease;
}

.contact-card:hover .contact-card__edit,
.contact-card.is-selected .contact-card__edit,
.contact-card__edit:focus-visible {
    opacity: 1;
    pointer-events: auto;
}

.contact-card__edit:hover {
    border-color: var(--cyan);
}

.contact-card__name {
    font-weight: 600;
}

.contact-card__meta {
    font-size: 0.82rem;
    color: var(--text-muted);
}

.contact-card__status {
    display: inline-block;
    margin-top: 0.25rem;
    font-size: 0.75rem;
    padding: 0.1rem 0.4rem;
    border-radius: 999px;
}

.status--overlap {
    background: rgba(224, 175, 104, 0.15);
    color: var(--yellow);
}

.status--in-hours {
    background: rgba(158, 206, 106, 0.15);
    color: var(--green);
}

.status--out-hours {
    background: rgba(86, 95, 137, 0.2);
    color: var(--text-muted);
}

.map-panel {
    display: flex;
    flex-direction: column;
    flex: 1;
    min-width: 0;
    min-height: 0;
    background: var(--bg);
}

.map-toolbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.5rem 0.75rem;
    border-bottom: 1px solid var(--border-subtle);
}

.map-toolbar__start {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    min-width: 0;
}

.sidebar-toggle {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    flex-shrink: 0;
}

.sidebar-toggle__chevron {
    font-size: 1.1rem;
    line-height: 1;
}

.sidebar-toggle__label {
    display: none;
}

.app-body.is-sidebar-collapsed .sidebar-toggle__label {
    display: inline;
}

.map-clock {
    font-size: 0.9rem;
    color: var(--text-dim);
    font-variant-numeric: tabular-nums;
}

.map-viewport {
    position: relative;
    flex: 1;
    min-height: 320px;
    overflow: hidden;
    cursor: grab;
    touch-action: none;
}

.map-viewport.is-dragging {
    cursor: grabbing;
}

.world-map {
    width: 100%;
    height: 100%;
    display: block;
    user-select: none;
}

.map-ocean {
    fill: var(--map-ocean);
}

.map-land {
    fill: var(--map-land);
    stroke: none;
    pointer-events: none;
}

.map-border {
    fill: none;
    stroke: #4a5270;
    stroke-width: 0.1;
    stroke-linejoin: round;
    opacity: 0.75;
    pointer-events: none;
}

.time-band {
    fill: rgba(26, 27, 38, 0.82);
    pointer-events: none;
}

.time-label {
    fill: var(--text-dim);
    font-size: 2.4px;
    font-family: var(--font);
    text-anchor: middle;
    pointer-events: none;
}

.time-label--top {
    dominant-baseline: hanging;
}

.time-label--bottom {
    dominant-baseline: auto;
}

.tz-line {
    stroke: #414868;
    stroke-width: 0.08;
    stroke-dasharray: 0.4 0.4;
    opacity: 0.7;
}

.tz-line--major {
    stroke-width: 0.12;
    opacity: 0.9;
}

.night-overlay {
    fill: var(--night);
    opacity: 0.55;
    pointer-events: none;
}

.work-line {
    stroke: var(--yellow);
    stroke-width: 0.25;
    stroke-dasharray: 0.8 0.5;
    opacity: 0.85;
    pointer-events: none;
}

.work-line-label {
    fill: var(--yellow);
    font-size: 2.6px;
    font-family: var(--font);
    font-weight: 600;
    text-anchor: middle;
    pointer-events: none;
}

.work-line-label--top {
    dominant-baseline: hanging;
}

.work-line-label--bottom {
    dominant-baseline: auto;
}

.city-marker circle {
    fill: none;
    stroke: var(--cyan);
    stroke-width: 0.2;
}

.city-marker text {
    fill: var(--text-dim);
    font-size: 1.8px;
    text-anchor: middle;
}

.marker-user,
.marker-contact {
    cursor: pointer;
    color: var(--marker-color, var(--text));
}

.marker-icon {
    color: inherit;
}

.marker-halo {
    fill: none;
    stroke-width: 0.3;
    pointer-events: none;
}

.marker-contact--in-hours .marker-halo {
    fill: rgba(158, 206, 106, 0.22);
    stroke: var(--green);
    animation: marker-pulse 2.4s ease-in-out infinite;
}

.marker-contact--overlap .marker-halo {
    fill: rgba(224, 175, 104, 0.28);
    stroke: var(--yellow);
    animation: marker-pulse 1.8s ease-in-out infinite;
}

.marker-contact--out-hours {
    opacity: 0.42;
}

.marker-contact--in-hours,
.marker-contact--overlap {
    opacity: 1;
}

.marker-contact.is-selected {
    filter: drop-shadow(0 0 0.35px var(--marker-color, var(--cyan)));
}

@keyframes marker-pulse {
    0%, 100% {
        opacity: 0.55;
    }
    50% {
        opacity: 1;
    }
}

.map-tooltip {
    position: absolute;
    z-index: 10;
    max-width: 260px;
    padding: 0.55rem 0.7rem;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: rgba(31, 35, 53, 0.96);
    box-shadow: var(--shadow);
    font-size: 0.82rem;
    pointer-events: auto;
}

.map-tooltip__edit {
    display: inline-block;
    margin-top: 0.45rem;
    padding: 0.2rem 0.55rem;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--bg-elevated);
    color: var(--cyan);
    font-size: 0.75rem;
    cursor: pointer;
}

.map-tooltip__edit:hover {
    border-color: var(--cyan);
}

.map-tooltip strong {
    color: var(--blue);
}

.app-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 0.65rem 1rem;
    border-top: 1px solid var(--border-subtle);
    background: var(--bg-panel);
    font-size: 0.85rem;
    color: var(--text-muted);
}

.app-footer__credit {
    margin: 0;
}

.app-footer__link {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    color: var(--cyan);
    text-decoration: none;
    white-space: nowrap;
}

.app-footer__link-icon {
    font-size: 1rem;
    line-height: 1;
}

.app-footer__link:hover {
    color: var(--blue);
}

.privacy-banner {
    position: fixed;
    left: 1rem;
    right: 1rem;
    bottom: 3.5rem;
    display: none;
    gap: 1rem;
    align-items: center;
    justify-content: space-between;
    padding: 0.75rem 1rem;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--bg-panel);
    box-shadow: var(--shadow);
}

.privacy-banner.is-visible {
    display: flex;
}

.modal {
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 0;
    background: var(--bg-panel);
    color: var(--text);
    max-width: 640px;
    width: calc(100% - 2rem);
    box-shadow: var(--shadow);
}

.modal::backdrop {
    background: rgba(0, 0, 0, 0.55);
}

.modal__content {
    display: flex;
    flex-direction: column;
    max-height: 90vh;
}

.modal__header,
.modal__footer {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--border-subtle);
}

.modal__footer {
    border-bottom: 0;
    border-top: 1px solid var(--border-subtle);
}

.modal__footer--split {
    justify-content: space-between;
}

.modal__footer-start,
.modal__footer-end {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.modal__footer-spacer {
    flex: 1;
}

.modal__header h2 {
    margin: 0;
    flex: 1;
    font-size: 1.1rem;
}

.modal__body {
    overflow: auto;
    padding: 1rem;
}

.form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.75rem;
}

.form-grid label {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    font-size: 0.85rem;
    color: var(--text-dim);
}

.form-grid input[type="text"],
.form-grid input[type="email"],
.form-grid input[type="tel"],
.form-grid input[type="number"] {
    padding: 0.45rem 0.55rem;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--bg);
}

.fieldset-full {
    grid-column: 1 / -1;
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius);
    padding: 0.75rem;
    margin: 0;
}

.field-hint {
    margin: 0.25rem 0 0;
    font-size: 0.8rem;
    color: var(--text-muted);
}

.form-message {
    margin: 0 0 0.75rem;
    padding: 0.55rem 0.7rem;
    border-radius: var(--radius);
    font-size: 0.85rem;
}

.form-message--error {
    border: 1px solid rgba(247, 118, 142, 0.45);
    background: rgba(247, 118, 142, 0.12);
    color: var(--red);
}

.form-message--info {
    border: 1px solid rgba(125, 207, 255, 0.35);
    background: rgba(125, 207, 255, 0.08);
    color: var(--cyan);
}

.coords-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.75rem;
    margin-top: 0.5rem;
}

.hours-grid {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.hours-row {
    display: grid;
    grid-template-columns: 5rem 3rem 1fr 1fr;
    gap: 0.5rem;
    align-items: center;
    font-size: 0.85rem;
}

.hours-row label {
    display: flex;
    align-items: center;
    gap: 0.35rem;
}

.hours-row input[type="time"] {
    padding: 0.3rem;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: var(--bg);
}

.hours-row.is-disabled {
    opacity: 0.45;
}

@media (max-width: 900px) {
    .app-body {
        flex-direction: column;
    }

    .sidebar {
        flex: 0 0 auto;
        width: 100%;
        max-height: 240px;
        border-right: 0;
        border-bottom: 1px solid var(--border-subtle);
        transition: max-height 0.25s ease, opacity 0.2s ease, border-color 0.25s ease;
    }

    .app-body.is-sidebar-collapsed .sidebar {
        flex-basis: 0;
        width: 100%;
        max-height: 0;
        border-bottom-color: transparent;
    }

    .form-grid {
        grid-template-columns: 1fr;
    }

    .app-footer {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.35rem;
    }
}