/* ============================================
   Design Tokens
   ============================================ */

:root {
    --c-bg: #0a0e1a;
    --c-bg-raised: #111827;
    --c-bg-card: #131c2e;
    --c-bg-input: #0d1220;
    --c-border: #1e293b;
    --c-border-focus: #3b82f6;
    --c-text: #e2e8f0;
    --c-text-secondary: #94a3b8;
    --c-text-muted: #4b5563;
    --c-accent: #3b82f6;
    --c-accent-hover: #60a5fa;
    --c-success: #22c55e;
    --c-error: #ef4444;

    --c-dd: #60a5fa;
    --c-dms: #c084fc;
    --c-utm: #4ade80;
    --c-mgrs: #fb923c;
    --c-plus: #2dd4bf;
    --c-unlocode: #fbbf24;

    --font-body: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
    --font-mono: 'SF Mono', 'Monaco', 'Inconsolata', 'Roboto Mono', 'Consolas', 'Courier New', monospace;

    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 14px;

    --max-width: clamp(760px, 65vw, 1060px);
    --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
}

/* ============================================
   Reset & Base
   ============================================ */

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

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-body);
    background: var(--c-bg);
    /* Optional: subtle blue radial glow behind input area. Remove this line to revert. */
    background-image: radial-gradient(ellipse at 50% 0%, rgba(59, 130, 246, 0.07) 0%, transparent 60%);
    color: var(--c-text);
    line-height: 1.6;
    min-height: 100vh;
}

/* ============================================
   Layout
   ============================================ */

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

.header {
    border-bottom: 1px solid var(--c-border);
    padding: 0.875rem 1.5rem;
}

.header-inner {
    max-width: var(--max-width);
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.brand {
    font-family: var(--font-mono);
    font-size: 1.0625rem;
    font-weight: 700;
    color: var(--c-text-secondary);
    text-decoration: none;
    letter-spacing: -0.02em;
}

.brand:hover {
    color: var(--c-text);
}

.header-right {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.nav {
    display: flex;
    gap: 1.25rem;
}

.nav-link {
    font-family: var(--font-mono);
    font-size: 0.875rem;
    color: var(--c-text-secondary);
    text-decoration: none;
    transition: color 0.15s ease;
}

.nav-link:hover {
    color: var(--c-text);
}

.shortcut-hint {
    position: absolute;
    right: 0.75rem;
    top: 50%;
    transform: translateY(-50%);
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--c-text-muted);
    background: var(--c-bg-card);
    border: 1px solid var(--c-border);
    border-radius: 4px;
    padding: 0.15rem 0.4rem;
    pointer-events: none;
    user-select: none;
    opacity: 1;
    transition: opacity 0.15s ease;
}

#coord-input:focus ~ .shortcut-hint {
    opacity: 0;
}

.page.has-input .shortcut-hint {
    display: none;
}

.main {
    flex: 1;
    max-width: var(--max-width);
    width: 100%;
    margin: 0 auto;
    padding: 0 1.5rem 4rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.footer {
    border-top: 1px solid var(--c-border);
    padding: 0.875rem 1.5rem;
    text-align: center;
    font-size: 0.8125rem;
    color: var(--c-text-secondary);
}

/* ============================================
   Input Section — Centering & Transitions
   ============================================ */

.input-section {
    padding-top: 14vh;
    transition: padding-top 0.5s var(--ease-out);
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.page.has-results .input-section {
    padding-top: 2rem;
}

/* ============================================
   Hero
   ============================================ */

.hero {
    text-align: center;
    margin-bottom: 0.75rem;
    max-height: 200px;
    overflow: hidden;
    opacity: 1;
    transition:
        opacity 0.2s ease,
        max-height 0.35s var(--ease-out),
        margin-bottom 0.35s var(--ease-out);
}

.page.has-results .hero {
    opacity: 0;
    max-height: 0;
    margin-bottom: 0;
}

.hero-title {
    font-family: var(--font-mono);
    font-size: 2rem;
    font-weight: 700;
    letter-spacing: -0.03em;
    color: var(--c-text);
    line-height: 1.2;
}

.hero-sub {
    margin-top: 0.5rem;
    font-size: 1.0625rem;
    color: var(--c-text-secondary);
    letter-spacing: 0.01em;
}

.hero-sub-detail {
    margin-top: 0.375rem;
    font-size: 0.9375rem;
    color: var(--c-text-muted);
    letter-spacing: 0.01em;
}

/* ============================================
   Input
   ============================================ */

.input-wrap {
    position: relative;
    display: flex;
    align-items: center;
}

#coord-input {
    width: 100%;
    font-family: var(--font-mono);
    font-size: 1.375rem;
    padding: 1rem 5.5rem 1rem 1.25rem;
    background: var(--c-bg-input);
    border: 1.5px solid var(--c-border);
    border-radius: var(--radius-md);
    color: var(--c-text);
    outline: none;
    transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

#coord-input::placeholder {
    color: var(--c-text-muted);
    font-weight: 400;
}

#coord-input:focus {
    border-color: var(--c-border-focus);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15), 0 0 12px rgba(59, 130, 246, 0.06);
    animation: borderPulse 3s ease-in-out infinite;
}

@keyframes borderPulse {
    0%, 100% {
        box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15), 0 0 12px rgba(59, 130, 246, 0.06);
    }
    50% {
        box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.35), 0 0 20px rgba(59, 130, 246, 0.12);
    }
}

/* Format-aware input border */
.input-wrap[data-format="DecimalDegrees"] #coord-input        { border-color: var(--c-dd); }
.input-wrap[data-format="DegreesMinutesSeconds"] #coord-input  { border-color: var(--c-dms); }
.input-wrap[data-format="Utm"] #coord-input                    { border-color: var(--c-utm); }
.input-wrap[data-format="Mgrs"] #coord-input                   { border-color: var(--c-mgrs); }
.input-wrap[data-format="PlusCode"] #coord-input               { border-color: var(--c-plus); }
.input-wrap[data-format="UnLocode"] #coord-input               { border-color: var(--c-unlocode); }

.input-wrap[data-format] #coord-input:focus { animation: none; }
.input-wrap[data-format="DecimalDegrees"] #coord-input:focus        { border-color: var(--c-dd);  box-shadow: 0 0 0 3px rgba(96, 165, 250, 0.15), 0 0 12px rgba(96, 165, 250, 0.06); }
.input-wrap[data-format="DegreesMinutesSeconds"] #coord-input:focus { border-color: var(--c-dms); box-shadow: 0 0 0 3px rgba(192, 132, 252, 0.15), 0 0 12px rgba(192, 132, 252, 0.06); }
.input-wrap[data-format="Utm"] #coord-input:focus                   { border-color: var(--c-utm); box-shadow: 0 0 0 3px rgba(74, 222, 128, 0.15), 0 0 12px rgba(74, 222, 128, 0.06); }
.input-wrap[data-format="Mgrs"] #coord-input:focus                  { border-color: var(--c-mgrs); box-shadow: 0 0 0 3px rgba(251, 146, 60, 0.15), 0 0 12px rgba(251, 146, 60, 0.06); }
.input-wrap[data-format="PlusCode"] #coord-input:focus              { border-color: var(--c-plus); box-shadow: 0 0 0 3px rgba(45, 212, 191, 0.15), 0 0 12px rgba(45, 212, 191, 0.06); }
.input-wrap[data-format="UnLocode"] #coord-input:focus              { border-color: var(--c-unlocode); box-shadow: 0 0 0 3px rgba(251, 191, 36, 0.15), 0 0 12px rgba(251, 191, 36, 0.06); }

/* ============================================
   Input Meta (badge + error)
   ============================================ */

.input-meta {
}

.format-badge {
    position: absolute;
    right: 0.75rem;
    top: 50%;
    transform: translateY(-50%);
    font-family: var(--font-mono);
    font-size: 0.8125rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    padding: 0.2rem 0.55rem;
    border-radius: 4px;
    border: 1px solid;
    pointer-events: none;
    transition: opacity 0.15s ease;
}

.format-badge[data-format="DecimalDegrees"] {
    background: rgba(96, 165, 250, 0.1);
    color: var(--c-dd);
    border-color: rgba(96, 165, 250, 0.2);
}

.format-badge[data-format="DegreesMinutesSeconds"] {
    background: rgba(192, 132, 252, 0.1);
    color: var(--c-dms);
    border-color: rgba(192, 132, 252, 0.2);
}

.format-badge[data-format="Utm"] {
    background: rgba(74, 222, 128, 0.1);
    color: var(--c-utm);
    border-color: rgba(74, 222, 128, 0.2);
}

.format-badge[data-format="Mgrs"] {
    background: rgba(251, 146, 60, 0.1);
    color: var(--c-mgrs);
    border-color: rgba(251, 146, 60, 0.2);
}

.format-badge[data-format="PlusCode"] {
    background: rgba(45, 212, 191, 0.1);
    color: var(--c-plus);
    border-color: rgba(45, 212, 191, 0.2);
}

.format-badge[data-format="UnLocode"] {
    background: rgba(251, 191, 36, 0.1);
    color: var(--c-unlocode);
    border-color: rgba(251, 191, 36, 0.2);
}

.format-badge[data-format="Error"] {
    background: rgba(239, 68, 68, 0.1);
    color: var(--c-error);
    border-color: rgba(239, 68, 68, 0.2);
}

/* ============================================
   Ghost Text Hints
   ============================================ */

.ghost-mirror {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    display: flex;
    align-items: center;
    font-family: var(--font-mono);
    font-size: 1.375rem;
    padding: 0 5.5rem 0 1.25rem;
    border: 1.5px solid transparent;
    border-radius: var(--radius-md);
    background: var(--c-bg-input);
    z-index: 1;
    pointer-events: none;
    overflow: hidden;
    white-space: nowrap;
}

.ghost-typed {
    color: transparent;
    white-space: pre;
}

.ghost-hint {
    color: var(--c-text-muted);
    opacity: 0.5;
    white-space: pre;
}

.input-wrap.ghost-active #coord-input {
    background: transparent;
    position: relative;
    z-index: 2;
}

/* ============================================
   Format Hint Dropdown
   ============================================ */

.hint-dropdown {
    position: absolute;
    top: calc(100% + 0.375rem);
    left: 0;
    right: 0;
    background: var(--c-bg-card);
    border: 1px solid var(--c-border);
    border-radius: var(--radius-md);
    padding: 0.25rem;
    z-index: 30;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
    animation: popoverIn 0.15s var(--ease-out) both;
}

.hint-option {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.5rem 0.75rem;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: background 0.1s ease;
    border: none;
    background: transparent;
    width: 100%;
    text-align: left;
    font-family: inherit;
}

.hint-option:hover,
.hint-option.active {
    background: rgba(59, 130, 246, 0.08);
}

.hint-option-format {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    min-width: 5.5rem;
    flex-shrink: 0;
}

.hint-option-pattern {
    font-family: var(--font-mono);
    font-size: 0.875rem;
    color: var(--c-text-muted);
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.hint-option[data-format="DD"] .hint-option-format { color: var(--c-dd); }
.hint-option[data-format="DMS"] .hint-option-format { color: var(--c-dms); }
.hint-option[data-format="DDM"] .hint-option-format { color: var(--c-dms); }
.hint-option[data-format="UTM"] .hint-option-format { color: var(--c-utm); }
.hint-option[data-format="MGRS"] .hint-option-format { color: var(--c-mgrs); }
.hint-option[data-format="PlusCode"] .hint-option-format { color: var(--c-plus); }
.hint-option[data-format="LOCODE"] .hint-option-format { color: var(--c-unlocode); }

.error-msg {
    font-size: 0.875rem;
    color: var(--c-error);
}

.error-msg.rate-limit-error {
    color: var(--c-unlocode);
}

/* Error state: red border on input, keep context visible */
.input-wrap.input-error #coord-input {
    border-color: var(--c-error);
}

.input-wrap.input-error #coord-input:focus {
    border-color: var(--c-error);
    box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.12);
    animation: none;
}

.rate-limit-cta {
    color: var(--c-accent);
    text-decoration: underline;
    text-underline-offset: 2px;
    font-weight: 500;
    white-space: nowrap;
}

.rate-limit-cta:hover {
    color: var(--c-accent-hover);
}

/* ============================================
   Example Chips
   ============================================ */

.examples {
    display: flex;
    align-items: center;
    gap: 0.4rem 0.5rem;
    flex-wrap: wrap;
    justify-content: center;
    max-width: clamp(520px, 55%, 700px);
    margin-left: auto;
    margin-right: auto;
    max-height: 140px;
    overflow: hidden;
    opacity: 1;
    transition:
        opacity 0.2s ease,
        max-height 0.35s var(--ease-out),
        margin 0.35s var(--ease-out);
}

.page.has-results .examples {
    opacity: 0;
    max-height: 0;
    margin: 0;
    pointer-events: none;
}

.example-chip {
    font-family: var(--font-mono);
    font-size: 0.875rem;
    color: var(--c-text-secondary);
    background: var(--c-bg-card);
    border: 1px solid var(--c-border);
    border-radius: 100px;
    padding: 0.25rem 0.65rem;
    cursor: pointer;
    white-space: nowrap;
    transition: border-color 0.15s ease, color 0.15s ease;
}

.example-chip:hover {
    border-color: var(--c-text-muted);
    color: var(--c-text);
}

/* ============================================
   Conversion History
   ============================================ */

.history-panel {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    max-width: clamp(520px, 55%, 700px);
    margin-left: auto;
    margin-right: auto;
    width: 100%;
    animation: fadeUp 0.2s var(--ease-out) both;
}

.page.has-results .history-panel {
    opacity: 0;
    max-height: 0;
    overflow: hidden;
    pointer-events: none;
    margin: 0;
    transition:
        opacity 0.2s ease,
        max-height 0.35s var(--ease-out),
        margin 0.35s var(--ease-out);
}

.history-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 0.125rem;
}

.history-label {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--c-text-muted);
}

.history-clear-btn {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--c-text-muted);
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0.125rem 0.25rem;
    border-radius: 3px;
    transition: color 0.15s ease, background 0.15s ease;
}

.history-clear-btn:hover {
    color: var(--c-error);
    background: rgba(239, 68, 68, 0.1);
}

.history-list {
    display: flex;
    flex-direction: column;
    gap: 0.1875rem;
}

.history-entry {
    display: flex;
    align-items: center;
    gap: 0.625rem;
    font-family: var(--font-body);
    font-size: 0.875rem;
    background: var(--c-bg-card);
    border: 1px solid var(--c-border);
    border-radius: var(--radius-sm);
    padding: 0.375rem 0.625rem;
    cursor: pointer;
    color: var(--c-text-secondary);
    transition: border-color 0.15s ease, color 0.15s ease, background 0.15s ease;
    user-select: none;
}

.history-entry:hover {
    border-color: var(--c-text-muted);
    color: var(--c-text);
    background: #172035;
}

.history-entry-format {
    position: static;
    transform: none;
    font-size: 0.6875rem;
    padding: 0.15rem 0.4rem;
    min-width: 3.75rem;
    text-align: center;
    flex-shrink: 0;
}

.history-entry-input {
    flex: 1;
    font-family: var(--font-mono);
    font-size: 0.875rem;
    color: inherit;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    text-align: center;
}

.history-entry-time {
    font-family: var(--font-mono);
    font-size: 0.6875rem;
    color: var(--c-text-muted);
    flex-shrink: 0;
    white-space: nowrap;
    min-width: 3.75rem;
    text-align: right;
}

@media (max-width: 600px) {
    .history-entry {
        gap: 0.375rem;
        padding: 0.3rem 0.5rem;
    }

    .history-entry-format {
        min-width: auto;
    }

    .history-entry-time {
        display: none;
    }
}

/* ============================================
   Results
   ============================================ */

.results {
    display: flex;
    flex-direction: column;
    gap: 0.625rem;
    animation: fadeUp 0.3s var(--ease-out) both;
}

.results-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-bottom: 0.25rem;
}

.results-title {
    font-family: var(--font-mono);
    font-size: 0.875rem;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--c-text-muted);
}

.results-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

/* ============================================
   Settings popover (wraps precision control)
   ============================================ */

.settings-wrapper {
    position: relative;
}

.btn-settings {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 30px;
    height: 30px;
    color: var(--c-accent);
    background: transparent;
    border: 1px solid rgba(59, 130, 246, 0.3);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: background 0.15s ease, color 0.15s ease;
}

.btn-settings:hover {
    background: var(--c-accent);
    color: var(--c-bg);
}

.btn-settings[aria-expanded="true"] {
    background: rgba(59, 130, 246, 0.15);
}

.settings-popover {
    position: absolute;
    top: calc(100% + 0.5rem);
    left: 0;
    background: var(--c-bg-card);
    border: 1px solid var(--c-border);
    border-radius: var(--radius-md);
    padding: 0.75rem 1rem;
    z-index: 20;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
    white-space: nowrap;
    animation: popoverIn 0.15s var(--ease-out) both;
}

.settings-popover.hidden {
    display: none;
}

@keyframes popoverIn {
    from { opacity: 0; transform: translateY(-4px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* ============================================
   Precision (inside settings popover)
   ============================================ */

.precision-control {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.precision-label {
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--c-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

#precision-slider {
    width: 80px;
    height: 3px;
    -webkit-appearance: none;
    appearance: none;
    background: var(--c-border);
    border-radius: 2px;
    outline: none;
    cursor: pointer;
}

#precision-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: var(--c-accent);
    border: 2px solid var(--c-bg);
    cursor: pointer;
    transition: background 0.15s ease;
}

#precision-slider::-webkit-slider-thumb:hover {
    background: var(--c-accent-hover);
}

#precision-slider::-moz-range-thumb {
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: var(--c-accent);
    border: 2px solid var(--c-bg);
    cursor: pointer;
}

.precision-value {
    font-family: var(--font-mono);
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--c-accent);
    min-width: 1rem;
    text-align: center;
}

/* ============================================
   Copy All
   ============================================ */

.btn-copy-all {
    font-family: var(--font-mono);
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--c-accent);
    background: transparent;
    border: 1px solid rgba(59, 130, 246, 0.3);
    border-radius: var(--radius-sm);
    padding: 0.3rem 0.7rem;
    cursor: pointer;
    transition: background 0.15s ease, color 0.15s ease;
}

.btn-copy-all:hover {
    background: var(--c-accent);
    color: var(--c-bg);
}

.btn-copy-all.copied {
    border-color: var(--c-success);
    color: var(--c-success);
}

.btn-share {
    font-family: var(--font-mono);
    font-size: 0.8125rem;
    font-weight: 600;
    color: #0a0e1a;
    background: var(--c-success);
    border: 1px solid var(--c-success);
    border-radius: var(--radius-sm);
    padding: 0.3rem 0.7rem;
    min-width: 5.2rem;
    text-align: center;
    cursor: pointer;
    transition: background 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}

.btn-share:hover {
    background: #16a34a;
    border-color: #16a34a;
}

.btn-share.copied {
    background: transparent;
    color: var(--c-success);
}

/* ============================================
   Output Cards
   ============================================ */

.output-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.375rem;
}

.output-card {
    display: flex;
    align-items: center;
    gap: 1rem;
    background: var(--c-bg-card);
    border: 1px solid var(--c-border);
    border-left: 3px solid var(--c-border);
    border-radius: var(--radius-sm);
    padding: 0.75rem 1rem;
    cursor: pointer;
    user-select: none;
    transition: border-color 0.15s ease, background 0.15s ease;

    opacity: 0;
    transform: translateY(6px);
    animation: cardIn 0.3s var(--ease-out) forwards;
}

.output-card:hover {
    border-color: var(--c-text-muted);
    background: #172035;
}

.output-card:active {
    background: #1c2740;
}

.output-card.copied {
    border-left-color: var(--c-success) !important;
}

.output-card[data-format="DecimalDegrees"]        { border-left-color: var(--c-dd); }
.output-card[data-format="DegreesMinutesSeconds"]  { border-left-color: var(--c-dms); }
.output-card[data-format="Utm"]                    { border-left-color: var(--c-utm); }
.output-card[data-format="Mgrs"]                   { border-left-color: var(--c-mgrs); }
.output-card[data-format="PlusCode"]               { border-left-color: var(--c-plus); }
.output-card[data-format="UnLocode"]              { border-left-color: var(--c-unlocode); }

.output-card[data-format="DecimalDegrees"] .output-format        { color: var(--c-dd); }
.output-card[data-format="DegreesMinutesSeconds"] .output-format  { color: var(--c-dms); }
.output-card[data-format="Utm"] .output-format                    { color: var(--c-utm); }
.output-card[data-format="Mgrs"] .output-format                   { color: var(--c-mgrs); }
.output-card[data-format="PlusCode"] .output-format               { color: var(--c-plus); }
.output-card[data-format="UnLocode"] .output-format              { color: var(--c-unlocode); }

.output-format {
    font-family: var(--font-mono);
    font-size: 0.8125rem;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--c-text-muted);
    min-width: 9.5rem;
    flex-shrink: 0;
    transition: color 0.15s ease;
}

.output-card.copied .output-format {
    color: var(--c-success);
}

.output-value {
    flex: 1;
    font-family: var(--font-mono);
    font-size: 1.0625rem;
    color: var(--c-text);
    word-break: break-all;
}

.copy-hint {
    font-size: 0.75rem;
    color: var(--c-text-muted);
    flex-shrink: 0;
}

/* ============================================
   Location Context
   ============================================ */

.location-context {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.location-card {
    background: var(--c-bg-card);
    border: 1px solid var(--c-border);
    border-left: 3px solid var(--c-accent);
    border-radius: var(--radius-sm);
    padding: 0.75rem 1rem;
    cursor: pointer;
    user-select: none;
    transition: border-color 0.15s ease, background 0.15s ease;

    opacity: 0;
    transform: translateY(6px);
    animation: cardIn 0.3s var(--ease-out) forwards;
}

.location-card:hover {
    border-color: var(--c-text-muted);
    background: #172035;
}

.location-card:active {
    background: #1c2740;
}

.location-card.copied {
    border-left-color: var(--c-success);
}

.location-card-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.location-code {
    font-family: var(--font-mono);
    font-size: 0.8125rem;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--c-accent);
    min-width: 5.5rem;
    flex-shrink: 0;
}

.location-card.copied .location-code {
    color: var(--c-success);
}

.location-name {
    flex: 1;
    font-size: 1.0625rem;
    color: var(--c-text);
}

.location-tz {
    font-family: var(--font-mono);
    font-size: 0.875rem;
    color: var(--c-text-secondary);
    margin-top: 0.375rem;
    padding-left: 6.25rem;
}

/* ============================================
   Location Meta (function badges, IATA, status)
   ============================================ */

.locode-cta {
    display: inline-block;
    margin-top: 0.5rem;
    font-size: 0.875rem;
    color: var(--c-text-muted);
    text-decoration: none;
    transition: color 0.15s ease;
}

.locode-cta:hover {
    color: var(--c-accent);
}

/* ============================================
   Nearby UN/LOCODEs
   ============================================ */

.nearby-section {
    opacity: 0;
    transform: translateY(6px);
    animation: cardIn 0.3s var(--ease-out) forwards;
}

.nearby-label {
    display: block;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--c-text-muted);
    margin-bottom: 0.375rem;
}

.nearby-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.375rem;
}

.nearby-item {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-family: var(--font-body);
    font-size: 0.875rem;
    background: var(--c-bg-card);
    border: 1px solid var(--c-border);
    border-radius: var(--radius-sm);
    padding: 0.375rem 0.625rem;
    cursor: pointer;
    color: var(--c-text-secondary);
    transition: border-color 0.15s ease, color 0.15s ease;
}

.nearby-item:hover {
    border-color: var(--c-unlocode);
    color: var(--c-text);
}

.nearby-code {
    font-family: var(--font-mono);
    font-weight: 600;
    color: var(--c-unlocode);
    font-size: 0.8125rem;
}

.nearby-name {
    color: inherit;
}

.nearby-dist {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--c-text-muted);
}

.nearby-map-btn {
    display: inline-flex;
    align-items: center;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.03em;
    color: var(--c-unlocode);
    background: var(--c-bg-card);
    border: 1px solid var(--c-unlocode);
    border-radius: var(--radius-sm);
    padding: 0.375rem 0.75rem;
    cursor: pointer;
    transition: background 0.15s ease, color 0.15s ease;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.4);
    z-index: 1000;
}

.nearby-map-btn:hover {
    background: rgba(251, 191, 36, 0.15);
    color: #fcd34d;
}

.nearby-map-btn:disabled {
    opacity: 0.5;
    cursor: wait;
}

.nearby-map-btn.nearby-map-active {
    background: rgba(251, 191, 36, 0.15);
    border-style: dashed;
}

/* --- Nearby marker labels on map --- */
.nearby-marker-label {
    position: absolute;
    top: -18px;
    left: 50%;
    transform: translateX(-50%);
    font-family: var(--font-mono);
    font-size: 0.6875rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    color: var(--c-unlocode);
    white-space: nowrap;
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.8);
    pointer-events: none;
    background: rgba(10, 14, 26, 0.75);
    padding: 1px 5px;
    border-radius: 3px;
}

/* Staggered positions to avoid overlap when markers are close */
.nearby-marker-label.label-pos-1 {
    top: auto;
    bottom: -18px;
    left: 0;
    transform: none;
}

.nearby-marker-label.label-pos-2 {
    top: auto;
    bottom: -18px;
    left: auto;
    right: 0;
    transform: none;
}

.nearby-marker-dist {
    font-weight: 400;
    opacity: 0.6;
    margin-left: 0.125rem;
}

.nearby-marker-icon {
    overflow: visible !important;
}

/* ============================================
   Map
   ============================================ */

.map-section {
    opacity: 0;
    transform: translateY(6px);
    animation: cardIn 0.3s var(--ease-out) forwards;
}

.map-container {
    position: relative;
    width: 100%;
    height: 300px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--c-border);
    overflow: hidden;
    background: var(--c-bg-card);
}

.map-container::after {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: var(--radius-lg);
    box-shadow: inset 0 0 30px 10px rgba(10, 14, 26, 0.5);
    pointer-events: none;
    z-index: 400;
}

/* Invert Positron light tiles to dark, shift toward navy palette, desaturate to match UI */
.map-container .leaflet-tile-pane {
    filter: invert(1) hue-rotate(200deg) saturate(0.4) brightness(0.95);
}

/* --- Leaflet zoom controls --- */
.map-container .leaflet-control-zoom {
    border: 1px solid var(--c-border) !important;
    border-radius: var(--radius-sm) !important;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.4) !important;
}

.map-container .leaflet-control-zoom a {
    background: var(--c-bg-card) !important;
    color: var(--c-text-secondary) !important;
    border-color: var(--c-border) !important;
    font-family: var(--font-mono) !important;
    width: 30px !important;
    height: 30px !important;
    line-height: 30px !important;
    font-size: 14px !important;
    transition: background 0.15s ease, color 0.15s ease;
}

.map-container .leaflet-control-zoom a:hover {
    background: var(--c-bg-raised) !important;
    color: var(--c-text) !important;
}

.map-container .leaflet-control-zoom-in {
    border-bottom: 1px solid var(--c-border) !important;
    border-radius: var(--radius-sm) var(--radius-sm) 0 0 !important;
}

.map-container .leaflet-control-zoom-out {
    border-radius: 0 0 var(--radius-sm) var(--radius-sm) !important;
}

/* --- Leaflet attribution --- */
.map-container .leaflet-control-attribution {
    background: rgba(10, 14, 26, 0.7) !important;
    color: var(--c-text-muted) !important;
    font-size: 0.6875rem !important;
    padding: 2px 6px !important;
    border-radius: var(--radius-sm) 0 0 0;
}

.map-container .leaflet-control-attribution a {
    color: var(--c-text-muted) !important;
}

.map-container .leaflet-control-attribution .leaflet-attribution-flag {
    display: none !important;
}

/* --- Custom marker icon (override Leaflet divIcon defaults) --- */
.map-marker-icon {
    background: none !important;
    border: none !important;
}

.map-marker-icon svg {
    display: block;
}

/* --- Marker pulse animation --- */
@keyframes markerPulse {
    0% {
        transform: scale(1);
        opacity: 0.6;
    }
    100% {
        transform: scale(3);
        opacity: 0;
    }
}

.map-marker-pulse {
    position: absolute;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--marker-color, var(--c-accent));
    inset: 0;
    margin: auto;
    animation: markerPulse 2s var(--ease-out) infinite;
    pointer-events: none;
}

/* --- Leaflet popup --- */
.map-container .leaflet-popup-content-wrapper {
    background: var(--c-bg-card) !important;
    color: var(--c-text) !important;
    border: 1px solid var(--c-border) !important;
    border-radius: var(--radius-sm) !important;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.5) !important;
    padding: 0 !important;
}

.map-container .leaflet-popup-content {
    font-family: var(--font-mono) !important;
    font-size: 0.875rem !important;
    color: var(--c-text) !important;
    margin: 0.5rem 0.75rem !important;
    line-height: 1.5 !important;
}

.map-container .leaflet-popup-tip {
    background: var(--c-bg-card) !important;
    border: 1px solid var(--c-border) !important;
    box-shadow: none !important;
}

.map-container .leaflet-popup-close-button {
    color: var(--c-text-muted) !important;
    font-size: 16px !important;
    padding: 4px 6px 0 0 !important;
}

.map-container .leaflet-popup-close-button:hover {
    color: var(--c-text) !important;
}

/* ============================================
   Animations
   ============================================ */

@keyframes fadeUp {
    from {
        opacity: 0;
        transform: translateY(12px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes cardIn {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ============================================
   Utility
   ============================================ */

.hidden {
    display: none !important;
}

/* ============================================
   Responsive
   ============================================ */

@media (max-width: 600px) {
    .main {
        padding: 0 1rem 3rem;
    }

    .input-section {
        padding-top: 8vh;
    }

    .hero-title {
        font-size: 1.5rem;
    }

    #coord-input {
        font-size: 1.125rem;
        padding: 0.875rem 5rem 0.875rem 1rem;
    }

    .ghost-mirror {
        font-size: 1.125rem;
        padding: 0 5rem 0 1rem;
    }

    .hint-option-format {
        min-width: 4rem;
    }

    .results-actions {
        gap: 0.625rem;
    }

    .output-card {
        flex-wrap: wrap;
        gap: 0.3rem;
    }

    .output-format {
        min-width: auto;
        width: 100%;
    }

    .output-value {
        font-size: 0.9375rem;
    }

    .example-chip {
        font-size: 0.75rem;
    }

    .location-card-header {
        flex-wrap: wrap;
    }

    .location-code {
        min-width: auto;
    }


    .location-tz {
        padding-left: 0;
    }

    .nearby-list {
        flex-direction: column;
    }

    .map-container {
        height: 200px;
    }
}

/* ============================================
   Reduced Motion
   ============================================ */

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        transition-duration: 0.01ms !important;
        animation-duration: 0.01ms !important;
    }
}