/* Sakura Seasons — site styles. Palette matches the iOS app (PaletteSakura). */

:root {
    --bg:         #2A0E10;
    --surface:    #431820;
    --surface-alt:#571E27;
    --cream:      #FFE9C2;
    --muted:      #D8A98E;
    --gold:       #F6B437;
    --red:        #B42318;
    --jade:       #3E9B4F;
    --tangerine:  #F08A24;
    --ribbon:     #5B79D6;
    --petal:      #E8A0AE;

    --accent:     var(--gold);
    --radius:     16px;
    --maxw:       960px;
}

/* Per-page seasonal accent */
body.season-spring { --accent: var(--petal); }
body.season-summer { --accent: var(--jade); }
body.season-autumn { --accent: var(--tangerine); }
body.season-winter { --accent: var(--ribbon); }

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

html { scroll-behavior: smooth; }

body {
    background: var(--bg);
    color: var(--cream);
    font-family: -apple-system, BlinkMacSystemFont, "SF Pro Rounded", "Segoe UI",
                 Roboto, "Helvetica Neue", Arial, sans-serif;
    line-height: 1.65;
    -webkit-font-smoothing: antialiased;
}

/* ---------- Header / nav ---------- */

.site-header {
    background: linear-gradient(135deg, var(--surface-alt), var(--surface));
    border-bottom: 2px solid var(--accent);
    padding: 14px 16px;
    position: sticky;
    top: 0;
    z-index: 10;
}

.site-header .inner {
    max-width: var(--maxw);
    margin: 0 auto;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 10px 18px;
}

.brand {
    font-size: 1.15rem;
    font-weight: 800;
    color: var(--cream);
    text-decoration: none;
    letter-spacing: 0.3px;
    white-space: nowrap;
}

.brand .dot { color: var(--accent); }

.site-nav {
    display: flex;
    flex-wrap: wrap;
    gap: 4px 6px;
    margin-left: auto;
}

.site-nav a {
    color: var(--muted);
    text-decoration: none;
    font-size: 0.88rem;
    font-weight: 600;
    padding: 6px 11px;
    border-radius: 999px;
    transition: background 0.2s, color 0.2s;
}

.site-nav a:hover { color: var(--cream); background: var(--surface-alt); }

.site-nav a.active {
    color: var(--bg);
    background: var(--accent);
}

/* ---------- Layout ---------- */

main {
    max-width: var(--maxw);
    margin: 0 auto;
    padding: 24px 16px 64px;
}

.hero {
    background: linear-gradient(135deg, var(--accent), var(--surface));
    border-radius: var(--radius);
    padding: 36px 24px;
    margin-bottom: 28px;
}

.hero h1 {
    font-size: clamp(1.7rem, 5vw, 2.6rem);
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 10px;
}

.hero .jp {
    color: var(--cream);
    opacity: 0.85;
    font-weight: 700;
    letter-spacing: 1px;
    text-transform: uppercase;
    font-size: 0.85rem;
    display: block;
    margin-bottom: 8px;
}

.hero p { max-width: 640px; font-size: 1.02rem; }

section { margin-bottom: 40px; }

h2 {
    font-size: 1.45rem;
    font-weight: 800;
    margin-bottom: 14px;
    padding-left: 12px;
    border-left: 5px solid var(--accent);
    border-radius: 2px;
}

h3 { font-size: 1.1rem; font-weight: 700; margin-bottom: 6px; }

p + p { margin-top: 10px; }

a { color: var(--gold); }

.lead { color: var(--muted); margin-bottom: 18px; max-width: 700px; }

/* ---------- Cards ---------- */

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 14px;
}

.card {
    background: var(--surface);
    border-radius: var(--radius);
    padding: 18px;
    display: block;
    color: var(--cream);
    text-decoration: none;
    border: 1px solid transparent;
    transition: border-color 0.2s, transform 0.2s;
}

a.card:hover { border-color: var(--accent); transform: translateY(-2px); }

.card .meta {
    font-size: 0.8rem;
    color: var(--muted);
    margin-bottom: 6px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
}

.card p { color: var(--muted); font-size: 0.92rem; }

.card h3 { color: var(--cream); }

/* Season badge */
.badge {
    display: inline-block;
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.4px;
    text-transform: uppercase;
    color: var(--bg);
    background: var(--accent);
    padding: 3px 10px;
    border-radius: 999px;
}

.badge.spring { background: var(--petal); }
.badge.summer { background: var(--jade); }
.badge.autumn { background: var(--tangerine); }
.badge.winter { background: var(--ribbon); }

/* ---------- Festival entries ---------- */

.festival {
    background: var(--surface);
    border-radius: var(--radius);
    padding: 22px;
    margin-bottom: 18px;
    scroll-margin-top: 90px;
}

.festival header {
    display: flex;
    flex-wrap: wrap;
    align-items: baseline;
    gap: 6px 12px;
    margin-bottom: 10px;
}

.festival header .jp-name { color: var(--muted); font-weight: 600; }

.festival header .date {
    margin-left: auto;
    font-size: 0.85rem;
    color: var(--muted);
    white-space: nowrap;
}

.festival ul { margin: 10px 0 0 20px; color: var(--muted); }
.festival li { margin-bottom: 4px; }
.festival li::marker { color: var(--accent); }

/* ---------- Do / Don't boxes ---------- */

.rules {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 14px;
}

.rulebox {
    border-radius: var(--radius);
    padding: 18px;
    background: var(--surface);
}

.rulebox.do    { border-top: 4px solid var(--jade); }
.rulebox.dont  { border-top: 4px solid var(--red); }

.rulebox h3 { margin-bottom: 8px; }
.rulebox.do h3   { color: var(--jade); }
.rulebox.dont h3 { color: #E06A5C; }

.rulebox ul { margin-left: 20px; color: var(--muted); }
.rulebox li { margin-bottom: 6px; }

/* ---------- Timeline / steps ---------- */

.steps { counter-reset: step; list-style: none; }

.steps li {
    counter-increment: step;
    position: relative;
    padding: 0 0 18px 52px;
}

.steps li::before {
    content: counter(step);
    position: absolute;
    left: 0;
    top: 0;
    width: 34px;
    height: 34px;
    border-radius: 50%;
    background: var(--accent);
    color: var(--bg);
    font-weight: 800;
    display: flex;
    align-items: center;
    justify-content: center;
}

.steps li:not(:last-child)::after {
    content: "";
    position: absolute;
    left: 16px;
    top: 38px;
    bottom: 2px;
    width: 2px;
    background: var(--surface-alt);
}

.steps h3 { margin-bottom: 2px; }
.steps p { color: var(--muted); font-size: 0.95rem; }

/* ---------- Table ---------- */

.table-wrap { overflow-x: auto; border-radius: var(--radius); }

table {
    width: 100%;
    border-collapse: collapse;
    background: var(--surface);
    min-width: 520px;
}

th, td { text-align: left; padding: 12px 14px; }

th {
    background: var(--surface-alt);
    color: var(--accent);
    font-size: 0.82rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

td { border-top: 1px solid var(--surface-alt); color: var(--muted); }
td:first-child { color: var(--cream); font-weight: 600; }

/* ---------- Callout ---------- */

.callout {
    background: var(--surface-alt);
    border-left: 5px solid var(--accent);
    border-radius: 0 var(--radius) var(--radius) 0;
    padding: 16px 18px;
    color: var(--cream);
    margin: 18px 0;
}

.callout strong { color: var(--accent); }

/* ---------- Footer ---------- */

.site-footer {
    background: var(--surface);
    border-top: 1px solid var(--surface-alt);
    padding: 28px 16px;
}

.site-footer .inner {
    max-width: var(--maxw);
    margin: 0 auto;
    display: flex;
    flex-wrap: wrap;
    gap: 18px;
    justify-content: space-between;
    color: var(--muted);
    font-size: 0.88rem;
}

.site-footer nav { display: flex; flex-wrap: wrap; gap: 14px; }
.site-footer a { color: var(--muted); text-decoration: none; }
.site-footer a:hover { color: var(--cream); }

/* ---------- Small screens ---------- */

@media (max-width: 560px) {
    .site-header .inner { justify-content: center; }
    .site-nav { margin-left: 0; justify-content: center; }
    .hero { padding: 28px 18px; }
    .festival header .date { margin-left: 0; }
}

/* ============================================================
   Motion: easing curves, page transitions, shimmer
   ============================================================ */

:root {
    --ease-smooth: cubic-bezier(0.22, 1, 0.36, 1);
    --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
    --ease-slow:   cubic-bezier(0.65, 0, 0.35, 1);
}

/* ----- Cross-page transitions (View Transitions API, no JS) ----- */

@view-transition { navigation: auto; }

::view-transition-old(root) {
    animation: page-out 0.22s var(--ease-slow) both;
}

::view-transition-new(root) {
    animation: page-in 0.45s var(--ease-smooth) both;
}

@keyframes page-out {
    to { opacity: 0; transform: translateY(-14px) scale(0.99); }
}

@keyframes page-in {
    from { opacity: 0; transform: translateY(18px) scale(0.995); }
}

/* ----- Load-in choreography ----- */

@keyframes rise-in {
    from { opacity: 0; transform: translateY(22px); }
    to   { opacity: 1; transform: none; }
}

@keyframes drop-in {
    from { opacity: 0; transform: translateY(-100%); }
    to   { opacity: 1; transform: none; }
}

.site-header { animation: drop-in 0.55s var(--ease-smooth) both; }

.hero > * { animation: rise-in 0.65s var(--ease-smooth) both; }
.hero > *:nth-child(1) { animation-delay: 0.08s; }
.hero > *:nth-child(2) { animation-delay: 0.18s; }
.hero > *:nth-child(3) { animation-delay: 0.3s; }

main > section, main > .callout {
    animation: rise-in 0.7s var(--ease-smooth) both;
}
main > section:nth-of-type(1) { animation-delay: 0.25s; }
main > section:nth-of-type(2) { animation-delay: 0.38s; }
main > section:nth-of-type(3) { animation-delay: 0.5s; }
main > section:nth-of-type(n+4) { animation-delay: 0.6s; }

/* ----- Hero: living gradient + drifting petals ----- */

.hero {
    position: relative;
    overflow: hidden;
    background: linear-gradient(120deg,
        var(--accent) 0%,
        var(--surface) 42%,
        var(--surface-alt) 58%,
        var(--accent) 100%);
    background-size: 240% 240%;
    animation: hero-sheen 16s var(--ease-slow) infinite;
}

@keyframes hero-sheen {
    0%   { background-position: 0% 50%; }
    50%  { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

/* soft light sweep across the hero */
.hero::before {
    content: "";
    position: absolute;
    top: 0; bottom: 0;
    left: -60%;
    width: 45%;
    background: linear-gradient(105deg,
        transparent, rgba(255, 233, 194, 0.10), transparent);
    transform: skewX(-18deg);
    animation: hero-sweep 7s var(--ease-slow) infinite;
    pointer-events: none;
}

@keyframes hero-sweep {
    0%, 55%  { left: -60%; }
    85%, 100% { left: 130%; }
}

/* drifting petals */
.hero::after {
    content: "";
    position: absolute;
    inset: -30%;
    pointer-events: none;
    background:
        radial-gradient(5px 7px at 12% 20%, rgba(232,160,174,0.55), transparent 70%),
        radial-gradient(4px 6px at 34% 65%, rgba(255,233,194,0.40), transparent 70%),
        radial-gradient(6px 8px at 55% 25%, rgba(232,160,174,0.45), transparent 70%),
        radial-gradient(4px 5px at 70% 70%, rgba(246,180,55,0.35), transparent 70%),
        radial-gradient(5px 7px at 85% 35%, rgba(232,160,174,0.5), transparent 70%),
        radial-gradient(3px 5px at 25% 85%, rgba(255,233,194,0.35), transparent 70%),
        radial-gradient(5px 6px at 92% 80%, rgba(232,160,174,0.4), transparent 70%);
    animation: petals-drift 13s var(--ease-slow) infinite alternate;
}

@keyframes petals-drift {
    from { transform: translate3d(-2.5%, -4%, 0) rotate(-2deg); }
    to   { transform: translate3d(2.5%, 5%, 0) rotate(3deg); }
}

.hero h1, .hero p, .hero .jp { position: relative; z-index: 1; }

/* ----- Nav: springy pills ----- */

.site-nav a {
    transition: background 0.3s var(--ease-smooth),
                color 0.3s var(--ease-smooth),
                transform 0.35s var(--ease-spring);
}

.site-nav a:hover { transform: translateY(-2px); }

.site-nav a.active {
    animation: pill-pop 0.5s var(--ease-spring) 0.4s both;
}

@keyframes pill-pop {
    from { transform: scale(0.8); opacity: 0.4; }
    to   { transform: scale(1); opacity: 1; }
}

.brand .dot {
    display: inline-block;
    animation: dot-breathe 3.2s var(--ease-slow) infinite;
}

@keyframes dot-breathe {
    0%, 100% { transform: scale(1);    opacity: 1; }
    50%      { transform: scale(1.35); opacity: 0.75; }
}

/* ----- Cards: spring lift + sheen sweep ----- */

.card {
    position: relative;
    overflow: hidden;
    transition: transform 0.45s var(--ease-spring),
                border-color 0.3s var(--ease-smooth),
                box-shadow 0.45s var(--ease-smooth);
}

.card::after {
    content: "";
    position: absolute;
    top: 0; bottom: 0;
    left: -80%;
    width: 55%;
    background: linear-gradient(105deg,
        transparent, rgba(255, 233, 194, 0.13), transparent);
    transform: skewX(-20deg);
    pointer-events: none;
    transition: left 0.7s var(--ease-smooth);
}

a.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 14px 32px rgba(0, 0, 0, 0.38);
}

a.card:hover::after { left: 135%; }

/* ----- Badges: iridescent shine ----- */

.badge {
    position: relative;
    overflow: hidden;
}

.badge::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(110deg,
        transparent 25%, rgba(255, 255, 255, 0.45) 50%, transparent 75%);
    transform: translateX(-110%);
    animation: badge-shine 5s var(--ease-slow) infinite;
}

@keyframes badge-shine {
    0%, 65%   { transform: translateX(-110%); }
    90%, 100% { transform: translateX(110%); }
}

/* ----- Section headings: accent bar grows in ----- */

h2 {
    border-image: linear-gradient(to bottom, var(--accent), transparent 160%) 1;
    animation: bar-grow 0.8s var(--ease-smooth) both;
}

@keyframes bar-grow {
    from { border-left-width: 0; padding-left: 17px; opacity: 0; }
    to   { border-left-width: 5px; padding-left: 12px; opacity: 1; }
}

/* ----- Festival entries & ruleboxes ----- */

.festival, .rulebox {
    transition: transform 0.4s var(--ease-spring),
                box-shadow 0.4s var(--ease-smooth);
}

.festival:hover, .rulebox:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 26px rgba(0, 0, 0, 0.3);
}

.festival:target {
    animation: target-glow 1.6s var(--ease-smooth) 1;
}

@keyframes target-glow {
    0%   { box-shadow: 0 0 0 0 rgba(246, 180, 55, 0.0); }
    25%  { box-shadow: 0 0 0 4px rgba(246, 180, 55, 0.55); }
    100% { box-shadow: 0 0 0 0 rgba(246, 180, 55, 0.0); }
}

/* ----- Steps: pulsing numbers ----- */

.steps li::before {
    transition: transform 0.35s var(--ease-spring),
                box-shadow 0.35s var(--ease-smooth);
}

.steps li:hover::before {
    transform: scale(1.15) rotate(-6deg);
    box-shadow: 0 0 0 7px rgba(246, 180, 55, 0.18);
}

/* ----- Tables & text links ----- */

tr { transition: background 0.25s var(--ease-smooth); }
tbody tr:hover, table tr:hover td { background: rgba(255, 233, 194, 0.04); }

main p a, .callout a, .festival a {
    text-decoration: none;
    background-image: linear-gradient(var(--gold), var(--gold));
    background-size: 0% 2px;
    background-position: 0 100%;
    background-repeat: no-repeat;
    transition: background-size 0.4s var(--ease-smooth), color 0.3s;
    padding-bottom: 1px;
}

main p a:hover, .callout a:hover, .festival a:hover {
    background-size: 100% 2px;
    color: var(--cream);
}

.callout {
    transition: border-left-width 0.3s var(--ease-spring);
}

.callout:hover { border-left-width: 9px; }

.site-footer a { transition: color 0.3s var(--ease-smooth); }

/* ----- Startup loader (auto-hides, pure CSS) ----- */

.loader {
    position: fixed;
    inset: 0;
    z-index: 100;
    background: var(--bg);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 18px;
    overflow: hidden;
    animation: loader-hide 0.55s var(--ease-smooth) 1.7s both;
}

@keyframes loader-hide {
    from { opacity: 1; }
    to   { opacity: 0; visibility: hidden; transform: translateY(-2%); }
}

/* drifting petals behind the mark */
.loader::before {
    content: "";
    position: absolute;
    inset: -25%;
    pointer-events: none;
    background:
        radial-gradient(6px 8px at 15% 25%, rgba(232,160,174,0.5), transparent 70%),
        radial-gradient(4px 6px at 35% 70%, rgba(255,233,194,0.35), transparent 70%),
        radial-gradient(6px 8px at 55% 20%, rgba(232,160,174,0.4), transparent 70%),
        radial-gradient(4px 6px at 72% 60%, rgba(246,180,55,0.3), transparent 70%),
        radial-gradient(5px 7px at 88% 30%, rgba(232,160,174,0.45), transparent 70%),
        radial-gradient(4px 5px at 25% 90%, rgba(255,233,194,0.3), transparent 70%);
    animation: petals-drift 5s var(--ease-slow) infinite alternate;
}

.loader-flower {
    position: relative;
    font-size: 56px;
    line-height: 1;
    color: var(--petal);
    animation: flower-in 0.9s var(--ease-spring) both,
               flower-sway 3s var(--ease-slow) 0.9s infinite;
}

@keyframes flower-in {
    from { opacity: 0; transform: scale(0.3) rotate(-60deg); }
    to   { opacity: 1; transform: scale(1) rotate(0deg); }
}

@keyframes flower-sway {
    0%, 100% { transform: rotate(0deg); }
    25%      { transform: rotate(-7deg); }
    75%      { transform: rotate(7deg); }
}

.loader-name {
    position: relative;
    font-size: 1.15rem;
    font-weight: 800;
    color: var(--cream);
    letter-spacing: 2px;
    animation: name-in 1s var(--ease-smooth) 0.3s both;
}

@keyframes name-in {
    from { opacity: 0; letter-spacing: 9px; transform: translateY(10px); }
    to   { opacity: 1; letter-spacing: 2px; transform: none; }
}

.loader-bar {
    position: relative;
    width: 150px;
    height: 4px;
    border-radius: 999px;
    background: var(--surface-alt);
    overflow: hidden;
}

.loader-bar::before {
    content: "";
    position: absolute;
    inset: 0;
    border-radius: 999px;
    background: linear-gradient(90deg, var(--petal), var(--gold));
    transform-origin: left;
    animation: bar-fill 1.55s var(--ease-slow) 0.15s both;
}

@keyframes bar-fill {
    from { transform: scaleX(0); }
    to   { transform: scaleX(1); }
}

/* ----- Accessibility: respect reduced motion ----- */

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-delay: 0s !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        transition-delay: 0s !important;
    }
    html { scroll-behavior: auto; }
}