/* ============================================================
   AIR & EMBER — TRAIL NAV
   The site nav as a trail map. A matchstick button ignites,
   and its light spreads across the screen to reveal waypoints
   strung along a dashed trail. "You are here" marks the page.

   Relies on the design tokens (:root vars) + fonts declared in
   showcase.css / ember-pages.css — always loaded alongside this.
   ============================================================ */

/* ============ THE TRAIL BAR (fixed header) ============ */

.trailBar {
    position: fixed;
    top: 5px; /* sits under the scroll-progress track */
    left: 0;
    right: 0;
    z-index: 250;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: .9rem 2.2rem;
    background: linear-gradient(180deg, rgba(8, 5, 17, .85), transparent);
    transition: background .4s, backdrop-filter .4s, border-color .4s;
}
.trailBar.scrolled {
    background: rgba(8, 5, 17, .82);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(244, 231, 197, .08);
}

.trailBrand {
    display: flex;
    align-items: center;
    gap: .7rem;
    font-family: var(--font-display);
    font-size: 1.35rem;
    letter-spacing: .04em;
    color: var(--cream);
    position: relative;
    z-index: 260; /* stays above the open map */
}
.trailBrand img { width: 42px; height: auto; }
.trailBrand em { color: var(--ember); font-style: normal; }

/* ============ THE MATCHSTICK BUTTON ============ */

.matchBtn {
    position: relative;
    z-index: 260;
    display: flex;
    align-items: center;
    gap: .85rem;
    padding: .6rem 1.25rem;
    background: rgba(8, 5, 17, .45);
    border: 1px solid rgba(244, 231, 197, .28);
    border-radius: 999px;
    color: var(--cream);
    cursor: pointer;
    transition: border-color .3s, box-shadow .3s, background .3s;
}
.matchBtn:hover,
.matchBtn:focus-visible {
    border-color: var(--ember);
    box-shadow: 0 0 22px rgba(255, 122, 47, .3);
    outline: none;
}

/* two loose matches; they cross into an X when the map is open */
.matchSticks {
    position: relative;
    width: 20px;
    height: 22px;
}
.matchStick {
    position: absolute;
    left: 50%;
    top: 50%;
    width: 3px;
    height: 18px;
    margin: -9px 0 0 -1.5px;
    border-radius: 2px;
    background: linear-gradient(180deg, #c9b98e, var(--cream));
    transition: transform .4s var(--ease-out);
}
.matchStick::before { /* the striking tip */
    content: '';
    position: absolute;
    top: -4px;
    left: -1px;
    width: 5px;
    height: 6px;
    border-radius: 50%;
    background: radial-gradient(circle at 50% 35%, #ff8f5e, #a3341f);
    transition: opacity .3s;
}
.matchStick--1 { transform: rotate(-7deg) translateX(-3px); }
.matchStick--2 { transform: rotate(9deg) translateX(4px); }
.matchBtn.open .matchStick--1 { transform: rotate(45deg); }
.matchBtn.open .matchStick--2 { transform: rotate(-45deg); }
.matchBtn.open .matchStick::before { opacity: 0; } /* spent match */

/* the flame — ignites on hover, snuffed while the map is open */
.matchFlame {
    position: absolute;
    left: 50%;
    top: -7px;
    width: 9px;
    height: 12px;
    margin-left: -4.5px;
    background: radial-gradient(circle at 50% 75%, #fff2c0 0%, #ffd76e 40%, var(--ember) 75%, transparent 85%);
    border-radius: 50% 50% 40% 40% / 65% 65% 35% 35%;
    filter: blur(.5px);
    opacity: 0;
    transform-origin: bottom center;
    transition: opacity .25s;
    animation: matchFlick 1.1s ease-in-out infinite;
    pointer-events: none;
}
.matchBtn:not(.open):hover .matchFlame,
.matchBtn:not(.open):focus-visible .matchFlame { opacity: 1; }
@keyframes matchFlick {
    0%, 100% { transform: scaleY(1) scaleX(1); }
    30%      { transform: scaleY(1.18) scaleX(.9) translateY(-1px); }
    60%      { transform: scaleY(.9) scaleX(1.08); }
}

.matchLabel {
    font-family: var(--font-crt);
    font-size: .72rem;
    letter-spacing: .3em;
    text-transform: uppercase;
}

/* ============ THE TRAIL MAP (fullscreen overlay) ============ */

.trailMap {
    position: fixed;
    inset: 0;
    z-index: 240;
    display: grid;
    place-items: center;
    padding: 6rem 2rem 4rem;
    background:
        radial-gradient(1.5px 1.5px at 14% 16%, var(--cream) 50%, transparent 51%),
        radial-gradient(1px 1px at 32% 38%, var(--air) 50%, transparent 51%),
        radial-gradient(2px 2px at 52% 10%, var(--cream) 50%, transparent 51%),
        radial-gradient(1px 1px at 68% 30%, var(--cream) 50%, transparent 51%),
        radial-gradient(1.5px 1.5px at 84% 14%, var(--air) 50%, transparent 51%),
        radial-gradient(1px 1px at 8% 52%, var(--cream) 50%, transparent 51%),
        radial-gradient(1.5px 1.5px at 91% 44%, var(--cream) 50%, transparent 51%),
        radial-gradient(ellipse 120% 70% at 50% -10%, #1a2440 0%, transparent 60%),
        linear-gradient(180deg, var(--ink) 0%, #0e1a2b 45%, var(--pine-deep) 100%);
    /* light spreads outward from the struck match (the button) */
    clip-path: circle(0px at calc(100% - 4.5rem) 3rem);
    visibility: hidden;
    transition: clip-path .75s var(--ease-out), visibility 0s linear .75s;
}
.trailMap.open {
    clip-path: circle(142% at calc(100% - 4.5rem) 3rem);
    visibility: visible;
    transition: clip-path .75s var(--ease-out);
}
.trailMap::after { /* treeline silhouette at the bottom of the map */
    content: '';
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    height: 34%;
    background: url(../assets/images/designAssets/treeline.png) bottom / cover no-repeat;
    filter: brightness(.32);
    opacity: .85;
    pointer-events: none;
}

body.trailOpen { overflow: hidden; }

/* ---- the waypoints ---- */

.waypoints {
    list-style: none;
    position: relative;
    z-index: 2;
    display: flex;
    flex-direction: column;
    gap: clamp(.9rem, 3vh, 1.7rem);
    padding-left: 2.4rem;
    margin: 0;
}
.waypoints::before { /* the dashed trail the dots sit on */
    content: '';
    position: absolute;
    left: 10px;
    top: 12px;
    bottom: 12px;
    border-left: 2px dashed rgba(159, 216, 203, .35);
}

.waypoints li { position: relative; }

.waypoint {
    display: inline-flex;
    align-items: baseline;
    gap: 1.1rem;
    color: var(--cream);
    transition: transform .35s var(--ease-out);
}
.waypoint:hover { transform: translateX(10px); }

.wpDot {
    position: absolute;
    left: -1.95rem;
    top: 50%;
    width: 11px;
    height: 11px;
    margin-top: -5.5px;
    border-radius: 50%;
    background: var(--air-dim);
    transition: background .3s, box-shadow .3s;
}
.waypoint:hover .wpDot,
.waypoint[aria-current="page"] .wpDot {
    background: var(--ember);
    box-shadow: 0 0 14px var(--ember);
}

.wpIndex {
    font-family: var(--font-crt);
    font-size: .8rem;
    letter-spacing: .25em;
    color: var(--air);
    opacity: .75;
}

.wpName {
    font-family: var(--font-display);
    font-size: clamp(2.1rem, 6.5vh, 3.5rem);
    line-height: 1.05;
    transition: color .3s;
}
.waypoint:hover .wpName {
    color: transparent;
    background: linear-gradient(120deg, var(--ember-glow), var(--ember));
    -webkit-background-clip: text;
    background-clip: text;
}

.wpNote {
    font-family: var(--font-hand);
    font-size: 2.15rem;
    color: var(--air);
    opacity: 0;
    transform: rotate(-2deg) translateX(-6px);
    transition: opacity .35s, transform .35s var(--ease-out);
    white-space: nowrap;
}
.waypoint:hover .wpNote {
    opacity: .9;
    transform: rotate(-2deg) translateX(0);
}

/* the trail marker for the page you're standing on */
.waypoint[aria-current="page"]::before {
    content: '🕯️';
    align-self: center;
    justify-content: center;
    text-align: center;
    font-family: var(--font-crt);
    font-size: .76rem;
    letter-spacing: .3em;
    color: var(--ember-glow);
    border: 1px solid rgba(255, 179, 71, .45);
    border-radius: 999px;
    padding: .3rem ;
    margin: .4rem;
    animation: hereBlink 2.4s steps(2) infinite;
    white-space: nowrap;
}
@keyframes hereBlink { 50% { opacity: .45; } }

/* waypoints hike in one by one as the light spreads */
.trailMap .waypoints li {
    opacity: 0;
    transform: translateY(26px);
    transition: opacity .5s var(--ease-out), transform .5s var(--ease-out);
}
.trailMap.open .waypoints li { opacity: 1; transform: none; }
.trailMap.open .waypoints li:nth-child(1) { transition-delay: .18s; }
.trailMap.open .waypoints li:nth-child(2) { transition-delay: .26s; }
.trailMap.open .waypoints li:nth-child(3) { transition-delay: .34s; }
.trailMap.open .waypoints li:nth-child(4) { transition-delay: .42s; }
.trailMap.open .waypoints li:nth-child(5) { transition-delay: .5s; }
.trailMap.open .waypoints li:nth-child(6) { transition-delay: .58s; }

/* a quiet legend in the map corner */
.trailLegend {
    position: absolute;
    left: 2.2rem;
    bottom: 2rem;
    z-index: 2;
    font-family: var(--font-crt);
    font-size: .68rem;
    letter-spacing: .28em;
    color: rgba(244, 231, 197, .5);
}

/* ============ RESPONSIVE ============ */

@media (max-width: 700px) {
    .trailBar { padding: .8rem 1.2rem; }
    .trailBrand span { font-size: 1.1rem; }
    .matchLabel { display: none; } /* just the matches on small screens */
    .matchBtn { padding: .6rem .8rem; }
    .trailMap { padding: 5rem 1.4rem 3rem; place-items: center start; }
    .wpNote { display: none; }
    .waypoint[aria-current="page"]::after { font-size: .52rem; padding: .24rem .55rem; }
    .trailLegend { display: none; }
}

/* touch devices have no hover: keep the notes softly visible */
@media (hover: none) {
    .wpNote { opacity: .6; transform: rotate(-2deg); }
}

/* ============ REDUCED MOTION ============ */

@media (prefers-reduced-motion: reduce) {
    .trailMap {
        clip-path: none;
        opacity: 0;
        transition: opacity .2s, visibility 0s linear .2s;
    }
    .trailMap.open { clip-path: none; opacity: 1; transition: opacity .2s; }
    .trailMap .waypoints li { opacity: 1; transform: none; transition: none; }
    .matchFlame { animation: none; }
    .waypoint[aria-current="page"]::after { animation: none; }
}