/* ── Design tokens ──────────────────────────────────────────────────── */
:root {
    --clr-earth:    #2d5a27;
    --clr-earth-dk: #1e3d1a;
    --clr-earth-lt: #e8f5e4;
    --clr-stone:    #f4f1ec;
    --clr-trail:    #c8590a;
    --clr-trail-lt: #fdf0e8;
    --clr-ink:      #1c1c1e;
    --clr-muted:    #6b6b6b;
    --clr-border:   #ddd8d0;
    --clr-white:    #ffffff;
}

/* ── Reset ──────────────────────────────────────────────────────────── */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* ── Base ───────────────────────────────────────────────────────────── */
body {
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    height: 100vh;
    display: flex;
    flex-direction: column;
    color: var(--clr-ink);
}

/* ── Header ─────────────────────────────────────────────────────────── */
header {
    height: 64px;
    background: var(--clr-earth);
    color: var(--clr-white);
    padding: 0 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    flex-shrink: 0;
    box-shadow: 0 2px 8px rgba(0,0,0,0.18);
}

.header-icon {
    flex-shrink: 0;
    opacity: 0.92;
}

.header-title {
    display: flex;
    flex-direction: column;
    gap: 0.05rem;
}

header h1 {
    font-size: 1.25rem;
    font-weight: 600;
    letter-spacing: -0.01em;
    line-height: 1.2;
}

.header-tagline {
    font-size: 0.75rem;
    font-weight: 400;
    color: rgba(255,255,255,0.65);
    letter-spacing: 0.02em;
}

/* ── Layout ─────────────────────────────────────────────────────────── */
.container {
    display: flex;
    flex: 1;
    overflow: hidden;
}

/* ── Sidebar ────────────────────────────────────────────────────────── */
.sidebar {
    width: 380px;
    background: var(--clr-stone);
    padding: 1.5rem;
    overflow-y: auto;
    flex-shrink: 0;
    box-shadow: 2px 0 12px rgba(0,0,0,0.06);
}

.sidebar::-webkit-scrollbar { width: 5px; }
.sidebar::-webkit-scrollbar-track { background: transparent; }
.sidebar::-webkit-scrollbar-thumb { background: var(--clr-border); border-radius: 5px; }

/* ── Section dividers ───────────────────────────────────────────────── */
hr.divider {
    border: none;
    border-top: 1px solid var(--clr-border);
    margin: 0.75rem 0;
}

/* ── Form groups ────────────────────────────────────────────────────── */
.form-group {
    margin-bottom: 1.25rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.45rem;
    font-weight: 500;
    font-size: 0.8rem;
    color: var(--clr-muted);
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

/* ── Inputs & selects ───────────────────────────────────────────────── */
input[type="number"],
select {
    width: 100%;
    padding: 0.65rem 0.9rem;
    border: 1.5px solid var(--clr-border);
    border-radius: 10px;
    font-size: 0.92rem;
    font-family: inherit;
    background: var(--clr-white);
    color: var(--clr-ink);
    transition: border-color 0.15s, box-shadow 0.15s;
    appearance: none;
    -webkit-appearance: none;
}

input[type="number"]:focus,
select:focus {
    outline: none;
    border-color: var(--clr-earth);
    box-shadow: 0 0 0 3px rgba(45,90,39,0.15);
}

input[type="number"]:disabled,
select:disabled {
    opacity: 0.45;
    cursor: not-allowed;
}

/* Custom select arrow */
select {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%236b6b6b' stroke-width='1.5' fill='none' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.9rem center;
    padding-right: 2.2rem;
}

/* ── Plan Route button ──────────────────────────────────────────────── */
button {
    width: 100%;
    padding: 0.85rem;
    background: var(--clr-earth);
    color: var(--clr-white);
    border: none;
    border-radius: 12px;
    font-size: 0.95rem;
    font-weight: 600;
    font-family: inherit;
    cursor: pointer;
    transition: background 0.18s, transform 0.15s, box-shadow 0.15s;
    position: relative;
}

button::after {
    content: ' →';
    font-weight: 400;
}

button:hover {
    background: var(--clr-earth-dk);
    transform: translateY(-1px);
    box-shadow: 0 4px 14px rgba(45,90,39,0.28);
}

button:active {
    background: var(--clr-earth-dk);
    transform: translateY(0);
    box-shadow: none;
}

button:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

/* ── Stats panel ────────────────────────────────────────────────────── */
.stats {
    margin-top: 1.5rem;
    padding: 1.25rem;
    background: var(--clr-white);
    border-radius: 14px;
    border: 1px solid var(--clr-border);
    box-shadow: 0 2px 10px rgba(0,0,0,0.07);
    display: none;
}

.stats.visible {
    display: block;
}

.stats h3 {
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 0.9rem;
    color: var(--clr-earth);
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

.stat-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.45rem 0;
    border-bottom: 1px solid var(--clr-border);
}

.stat-row:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.stat-label {
    color: var(--clr-muted);
    font-size: 0.8rem;
    font-weight: 400;
    display: flex;
    align-items: center;
    gap: 0.35rem;
}

.stat-value {
    font-weight: 600;
    font-size: 1.05rem;
    color: var(--clr-ink);
}

/* ── Error banner ───────────────────────────────────────────────────── */
.error {
    margin-top: 1rem;
    padding: 0.8rem 1rem;
    background: #fff0f0;
    border: 1.5px solid #f5a8a8;
    border-radius: 10px;
    color: #c0392b;
    font-size: 0.875rem;
    display: none;
}

.error::before {
    content: '⚠ ';
    font-style: normal;
}

.error.visible {
    display: block;
}

/* ── Map ────────────────────────────────────────────────────────────── */
#map {
    flex: 1;
    background: var(--clr-stone);
}

/* ── Helper text ────────────────────────────────────────────────────── */
.helper-text {
    font-size: 0.78rem;
    color: var(--clr-muted);
    margin-top: 0.35rem;
}

/* ── Distance inputs ────────────────────────────────────────────────── */
.distance-inputs {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 0.5rem;
}

/* ── Place search ───────────────────────────────────────────────────── */
.search-wrapper {
    position: relative;
}

.search-input {
    width: 100%;
    padding: 0.65rem 0.9rem;
    border: 1.5px solid var(--clr-border);
    border-radius: 10px;
    font-size: 0.92rem;
    font-family: inherit;
    background: var(--clr-white);
    color: var(--clr-ink);
    transition: border-color 0.15s, box-shadow 0.15s;
}

.search-input:focus {
    outline: none;
    border-color: var(--clr-earth);
    box-shadow: 0 0 0 3px rgba(45,90,39,0.15);
}

.search-input:disabled {
    opacity: 0.45;
    cursor: not-allowed;
}

.search-dropdown {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--clr-white);
    border: 1.5px solid var(--clr-border);
    border-top: none;
    border-radius: 0 0 10px 10px;
    max-height: 210px;
    overflow-y: auto;
    z-index: 9999;
    display: none;
    box-shadow: 0 6px 16px rgba(0,0,0,0.1);
}

.search-dropdown.visible {
    display: block;
}

.search-dropdown-item {
    padding: 0.5rem 0.9rem;
    cursor: pointer;
    font-size: 0.82rem;
    line-height: 1.4;
    border-bottom: 1px solid var(--clr-border);
    color: var(--clr-ink);
    transition: background 0.1s;
}

.search-dropdown-item:last-child {
    border-bottom: none;
}

.search-dropdown-item:hover {
    background: var(--clr-earth-lt);
}

.search-dropdown-item.no-results {
    color: var(--clr-muted);
    cursor: default;
}

.search-dropdown-item.no-results:hover {
    background: var(--clr-white);
}

/* ── Map-click mode toggle ──────────────────────────────────────────── */
.map-mode-group {
    margin-bottom: 1.25rem;
}

.map-mode-label {
    display: block;
    margin-bottom: 0.45rem;
    font-weight: 500;
    font-size: 0.75rem;
    color: var(--clr-muted);
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.map-mode-toggle {
    display: flex;
    gap: 0.4rem;
}

/* Mode buttons — pill shaped, override global button styles */
.mode-btn {
    flex: 1;
    width: auto;
    padding: 0.42rem 0.5rem;
    font-size: 0.78rem;
    background: var(--clr-white);
    color: var(--clr-muted);
    border: 1.5px solid var(--clr-border);
    border-radius: 20px;
    cursor: pointer;
    font-weight: 500;
    font-family: inherit;
    transition: background 0.15s, border-color 0.15s, color 0.15s, transform 0.1s;
}

/* Reset the global button::after arrow for mode buttons */
.mode-btn::after {
    content: '';
}

.mode-btn:hover {
    background: var(--clr-stone);
    border-color: #b8b4ac;
    color: var(--clr-ink);
    transform: none;
    box-shadow: none;
}

.mode-btn:active {
    transform: none;
}

.mode-btn.active-start {
    background: var(--clr-earth);
    color: var(--clr-white);
    border-color: var(--clr-earth);
}

.mode-btn.active-start:hover {
    background: var(--clr-earth-dk);
    border-color: var(--clr-earth-dk);
    color: var(--clr-white);
}

.mode-btn.active-end {
    background: var(--clr-trail);
    color: var(--clr-white);
    border-color: var(--clr-trail);
}

.mode-btn.active-end:hover {
    background: #a84a08;
    border-color: #a84a08;
    color: var(--clr-white);
}

.mode-btn.active-off {
    background: var(--clr-muted);
    color: var(--clr-white);
    border-color: var(--clr-muted);
}

.mode-btn.active-off:hover {
    background: #555;
    border-color: #555;
    color: var(--clr-white);
}

/* Crosshair cursor on map when a mode is active */
#map.click-mode-start,
#map.click-mode-end {
    cursor: crosshair !important;
}

/* ── Steps list ─────────────────────────────────────────────────────── */
.steps-toggle {
    width: 100%;
    margin-top: 0.75rem;
    padding: 0.5rem;
    background: var(--clr-earth-lt);
    color: var(--clr-earth);
    border: 1px solid var(--clr-border);
    border-radius: 8px;
    font-size: 0.82rem;
    font-weight: 500;
    font-family: inherit;
    cursor: pointer;
    text-align: center;
    transition: background 0.15s;
}
.steps-toggle:hover {
    background: #d4ecce;
}
/* Override global button ::after arrow */
.steps-toggle::after { content: ''; }

.steps-list {
    list-style: none;
    padding: 0;
    margin-top: 0.5rem;
}
.steps-list li {
    font-size: 0.82rem;
    color: var(--clr-ink);
    padding: 0.45rem 0;
    border-bottom: 1px solid var(--clr-border);
    display: flex;
    gap: 0.3rem;
    align-items: baseline;
}
.steps-list li:last-child {
    border-bottom: none;
}
.steps-list li span:first-child {
    color: var(--clr-earth);
    font-weight: 600;
    min-width: 1.5rem;
    flex-shrink: 0;
}
.step-dist {
    color: var(--clr-muted);
    white-space: nowrap;
    margin-left: auto;
    flex-shrink: 0;
}

/* ── Export section ─────────────────────────────────────────────────────── */
.export-section {
    margin-top: 1rem;
    padding-top: 0.75rem;
    border-top: 1px solid var(--clr-border);
}

.export-label {
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--clr-muted);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    margin-bottom: 0.5rem;
}

.export-buttons {
    display: flex;
    gap: 0.5rem;
}

.export-btn {
    flex: 1;
    padding: 0.45rem 0.25rem;
    font-size: 0.8rem;
    font-weight: 600;
    font-family: inherit;
    background: var(--clr-white);
    color: var(--clr-earth);
    border: 1.5px solid var(--clr-earth);
    border-radius: 8px;
    cursor: pointer;
    transition: background 0.15s, color 0.15s;
    text-align: center;
}
.export-btn:hover {
    background: var(--clr-earth);
    color: var(--clr-white);
}
.export-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}
/* Suppress global button ::after arrow */
.export-btn::after { content: ''; }

/* ── Responsive ─────────────────────────────────────────────────────── */
@media (max-width: 768px) {
    .container {
        flex-direction: column;
    }

    .sidebar {
        width: 100%;
        max-height: 50vh;
    }
}