/* ==========================================================================
   diplomatic.day — Swiss Typography Clean Dashboard
   ========================================================================== */

/* --- Variables / Palette --- */
:root {
    --paper-white: #fafafa;
    --rule-gray: #e0e0e0;
    --diplomat-navy: #1a237e;
    --summit-red: #c62828;
    --treaty-green: #2e7d32;
    --neutral-charcoal: #37474f;
    --calendar-tint: #e8eaf6;
}

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

/* --- Base --- */
html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    font-weight: 400;
    font-size: 0.95rem;
    line-height: 1.6;
    color: var(--neutral-charcoal);
    background-color: var(--paper-white);
    /* Planner-paper background grid */
    background-image:
        repeating-linear-gradient(
            0deg,
            transparent,
            transparent 39px,
            var(--rule-gray) 39px,
            var(--rule-gray) 40px
        ),
        repeating-linear-gradient(
            90deg,
            transparent,
            transparent 39px,
            var(--rule-gray) 39px,
            var(--rule-gray) 40px
        );
    background-size: 40px 40px;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* --- Header --- */
.header {
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 24px;
    background: var(--paper-white);
    border-bottom: 1px solid var(--rule-gray);
    position: sticky;
    top: 0;
    z-index: 100;
    flex-shrink: 0;
}

.header-left {
    flex: 1;
}

.header-domain {
    font-weight: 700;
    font-size: 1.1rem;
    letter-spacing: -0.02em;
    color: var(--diplomat-navy);
}

.header-center {
    flex: 1;
    text-align: center;
}

.header-date {
    font-family: 'Newsreader', Georgia, serif;
    font-weight: 500;
    font-size: 1.5rem;
    color: var(--neutral-charcoal);
    letter-spacing: 0.01em;
}

.header-right {
    flex: 1;
    text-align: right;
}

.timezone-selector {
    font-family: 'Inter', sans-serif;
    font-size: 0.8rem;
    font-variant-numeric: tabular-nums;
    padding: 6px 12px;
    border: 1px solid var(--rule-gray);
    border-radius: 4px;
    background: var(--paper-white);
    color: var(--neutral-charcoal);
    cursor: pointer;
    outline: none;
}

.timezone-selector:hover {
    border-color: var(--diplomat-navy);
}

/* --- Dashboard Layout --- */
.dashboard {
    display: flex;
    flex: 1;
    overflow: hidden;
    position: relative;
}

/* --- Sidebar --- */
.sidebar {
    width: 240px;
    min-width: 240px;
    border-right: 1px solid var(--rule-gray);
    background: var(--paper-white);
    padding: 20px 16px;
    overflow-y: auto;
    flex-shrink: 0;
}

/* Mini Calendar */
.mini-calendar {
    margin-bottom: 24px;
}

.mini-calendar-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 12px;
}

.cal-month {
    font-weight: 600;
    font-size: 0.85rem;
    color: var(--neutral-charcoal);
}

.cal-nav {
    background: none;
    border: 1px solid var(--rule-gray);
    border-radius: 3px;
    width: 26px;
    height: 26px;
    cursor: pointer;
    font-size: 1rem;
    color: var(--neutral-charcoal);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: border-color 0.2s;
}

.cal-nav:hover {
    border-color: var(--diplomat-navy);
    color: var(--diplomat-navy);
}

.cal-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 2px;
    margin-bottom: 4px;
}

.cal-day-label {
    font-size: 0.65rem;
    font-weight: 600;
    text-align: center;
    color: var(--neutral-charcoal);
    opacity: 0.6;
    padding: 2px 0;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.cal-dates {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 2px;
}

.cal-date {
    font-size: 0.75rem;
    font-variant-numeric: tabular-nums;
    text-align: center;
    padding: 4px 0;
    border-radius: 50%;
    cursor: pointer;
    transition: background-color 0.15s, color 0.15s;
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto;
}

.cal-date:hover {
    background: var(--calendar-tint);
}

.cal-date.active {
    background: var(--diplomat-navy);
    color: #ffffff;
}

.cal-date.has-events {
    font-weight: 600;
}

.cal-date.other-month {
    opacity: 0.3;
}

/* Filters */
.filters {
    margin-bottom: 24px;
}

.filters-title {
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--neutral-charcoal);
    opacity: 0.6;
    margin-bottom: 10px;
}

.filter-option {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 5px 0;
    font-size: 0.8rem;
    cursor: pointer;
    transition: opacity 0.2s;
}

.filter-option input[type="checkbox"] {
    margin-left: auto;
    cursor: pointer;
    accent-color: var(--diplomat-navy);
}

.filter-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    flex-shrink: 0;
}

.filter-dot--summit { background: var(--diplomat-navy); }
.filter-dot--treaty { background: var(--treaty-green); }
.filter-dot--general { background: var(--neutral-charcoal); }
.filter-dot--crisis { background: var(--summit-red); }
.filter-dot--bilateral { background: var(--calendar-tint); border: 1px solid var(--rule-gray); }

/* Legend */
.legend {
    margin-bottom: 16px;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 4px 0;
    font-size: 0.8rem;
}

.priority-arrow {
    width: 10px;
    height: 10px;
    flex-shrink: 0;
}

.priority-arrow--up {
    clip-path: polygon(50% 0%, 0% 100%, 100% 100%);
    background: var(--summit-red);
}

.priority-arrow--down {
    clip-path: polygon(0% 0%, 100% 0%, 50% 100%);
    background: var(--treaty-green);
}

/* Sidebar Toggle (mobile) */
.sidebar-toggle {
    display: none;
    position: fixed;
    top: 90px;
    left: 12px;
    z-index: 200;
    background: var(--paper-white);
    border: 1px solid var(--rule-gray);
    border-radius: 4px;
    padding: 8px;
    cursor: pointer;
    flex-direction: column;
    gap: 3px;
}

.toggle-bar {
    display: block;
    width: 18px;
    height: 2px;
    background: var(--neutral-charcoal);
    border-radius: 1px;
}

/* --- Main Content --- */
.main-content {
    flex: 1;
    padding: 32px 24px;
    overflow-y: auto;
    position: relative;
}

/* Timeline Hours */
.timeline-hours {
    position: absolute;
    left: 24px;
    top: 32px;
    bottom: 0;
    width: 48px;
    z-index: 1;
}

.hour-mark {
    position: absolute;
    left: 0;
    display: flex;
    align-items: center;
    gap: 4px;
}

.hour-tick {
    width: 12px;
    height: 1px;
    background: var(--rule-gray);
}

.hour-tick.major {
    width: 20px;
    background: var(--neutral-charcoal);
}

.hour-label {
    font-size: 0.65rem;
    font-variant-numeric: tabular-nums;
    color: var(--neutral-charcoal);
    opacity: 0.5;
    white-space: nowrap;
}

/* Timeline */
.timeline {
    position: relative;
    max-width: 900px;
    margin: 0 auto;
    padding: 20px 0 60px;
    min-height: 400px;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 1px;
    background: var(--rule-gray);
    transform: translateX(-50%);
}

/* Event Card */
.event-card {
    position: relative;
    width: calc(50% - 30px);
    padding: 16px 18px;
    background: var(--paper-white);
    border: 1px solid var(--rule-gray);
    border-left: 3px solid var(--diplomat-navy);
    border-radius: 4px;
    margin-bottom: 24px;
    opacity: 0;
    transform: translateY(10px);
    transition: opacity 0.3s ease, transform 0.3s ease;
}

.event-card.visible {
    opacity: 1;
    transform: translateY(0);
}

.event-card:nth-child(odd) {
    margin-right: 52%;
    text-align: right;
}

.event-card:nth-child(even) {
    margin-left: 52%;
    text-align: left;
}

/* Connector lines */
.event-card::after {
    content: '';
    position: absolute;
    top: 24px;
    width: 20px;
    height: 1px;
    background: var(--rule-gray);
}

.event-card:nth-child(odd)::after {
    right: -22px;
}

.event-card:nth-child(even)::after {
    left: -22px;
}

/* Connector dots */
.event-card::before {
    content: '';
    position: absolute;
    top: 20px;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    border: 1px solid var(--rule-gray);
    z-index: 2;
}

.event-card:nth-child(odd)::before {
    right: -30px;
}

.event-card:nth-child(even)::before {
    left: -30px;
}

/* Event type colors for left border and dot */
.event-card[data-type="summit"] {
    border-left-color: var(--diplomat-navy);
}
.event-card[data-type="summit"]::before {
    background: var(--diplomat-navy);
}

.event-card[data-type="treaty"] {
    border-left-color: var(--treaty-green);
}
.event-card[data-type="treaty"]::before {
    background: var(--treaty-green);
}

.event-card[data-type="general"] {
    border-left-color: var(--neutral-charcoal);
}
.event-card[data-type="general"]::before {
    background: var(--neutral-charcoal);
}

.event-card[data-type="crisis"] {
    border-left-color: var(--summit-red);
}
.event-card[data-type="crisis"]::before {
    background: var(--summit-red);
}

.event-card[data-type="bilateral"] {
    border-left-color: var(--calendar-tint);
}
.event-card[data-type="bilateral"]::before {
    background: var(--calendar-tint);
    border-color: var(--diplomat-navy);
}

/* Event Card Inner Elements */
.event-time {
    font-size: 0.7rem;
    font-weight: 600;
    font-variant-numeric: tabular-nums;
    color: var(--diplomat-navy);
    margin-bottom: 4px;
    letter-spacing: 0.03em;
}

.event-title {
    font-family: 'Newsreader', Georgia, serif;
    font-weight: 400;
    font-size: 1.1rem;
    line-height: 1.5;
    color: var(--neutral-charcoal);
    margin-bottom: 6px;
}

.event-description {
    font-size: 0.8rem;
    line-height: 1.5;
    color: var(--neutral-charcoal);
    opacity: 0.75;
    margin-bottom: 8px;
}

.event-flags {
    display: flex;
    gap: 4px;
    margin-bottom: 6px;
}

.event-card:nth-child(odd) .event-flags {
    justify-content: flex-end;
}

.flag-pip {
    width: 12px;
    height: 8px;
    border-radius: 1px;
}

.event-priority {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 0.7rem;
    font-weight: 500;
}

.event-card:nth-child(odd) .event-priority {
    justify-content: flex-end;
}

.priority-indicator {
    width: 8px;
    height: 8px;
    flex-shrink: 0;
}

.priority-indicator.escalating {
    clip-path: polygon(50% 0%, 0% 100%, 100% 100%);
    background: var(--summit-red);
}

.priority-indicator.de-escalating {
    clip-path: polygon(0% 0%, 100% 0%, 50% 100%);
    background: var(--treaty-green);
}

.priority-text--escalating {
    color: var(--summit-red);
}

.priority-text--de-escalating {
    color: var(--treaty-green);
}

/* --- Footer --- */
.footer {
    border-top: 1px solid var(--rule-gray);
    background: var(--paper-white);
    padding: 12px 24px;
    flex-shrink: 0;
    position: sticky;
    bottom: 0;
    z-index: 100;
}

.week-nav {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 8px;
    max-width: 700px;
    margin: 0 auto;
}

.week-day {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 8px 4px;
    border: 1px solid var(--rule-gray);
    border-radius: 4px;
    cursor: pointer;
    transition: background-color 0.15s, border-color 0.15s;
    text-decoration: none;
}

.week-day:hover {
    background: var(--calendar-tint);
    border-color: var(--diplomat-navy);
}

.week-day.active {
    background: var(--diplomat-navy);
    border-color: var(--diplomat-navy);
}

.week-day-name {
    font-size: 0.65rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--neutral-charcoal);
    opacity: 0.6;
}

.week-day.active .week-day-name {
    color: #ffffff;
    opacity: 0.8;
}

.week-day-number {
    font-size: 1.1rem;
    font-weight: 600;
    font-variant-numeric: tabular-nums;
    color: var(--neutral-charcoal);
    margin-top: 2px;
}

.week-day.active .week-day-number {
    color: #ffffff;
}

/* --- Responsive --- */
@media (max-width: 768px) {
    .header {
        height: auto;
        padding: 12px 16px;
        flex-wrap: wrap;
        gap: 8px;
    }

    .header-left {
        order: 1;
        flex: 0 0 auto;
    }

    .header-right {
        order: 2;
        flex: 0 0 auto;
        text-align: right;
    }

    .header-center {
        order: 3;
        flex: 0 0 100%;
        text-align: center;
    }

    .header-date {
        font-size: 1.2rem;
    }

    /* Sidebar collapses to top horizontal strip */
    .sidebar {
        position: fixed;
        top: 0;
        left: -260px;
        height: 100vh;
        z-index: 300;
        transition: left 0.25s ease;
        box-shadow: none;
    }

    .sidebar.open {
        left: 0;
        box-shadow: 2px 0 12px rgba(0,0,0,0.1);
    }

    .sidebar-toggle {
        display: flex;
    }

    .main-content {
        padding: 20px 16px;
    }

    /* Timeline single-column */
    .timeline::before {
        left: 20px;
    }

    .timeline-hours {
        display: none;
    }

    .event-card {
        width: calc(100% - 40px);
        margin-left: 40px !important;
        margin-right: 0 !important;
        text-align: left !important;
    }

    .event-card:nth-child(odd) .event-flags,
    .event-card:nth-child(odd) .event-priority {
        justify-content: flex-start;
    }

    .event-card::after {
        left: -22px !important;
        right: auto !important;
    }

    .event-card::before {
        left: -30px !important;
        right: auto !important;
    }

    .week-nav {
        gap: 4px;
    }

    .week-day {
        padding: 6px 2px;
    }

    .week-day-number {
        font-size: 0.95rem;
    }
}

@media (max-width: 480px) {
    .footer {
        padding: 8px 12px;
    }

    .week-day-name {
        font-size: 0.55rem;
    }

    .week-day-number {
        font-size: 0.85rem;
    }
}