/* ============================================================
   KOI POND — style.css
   Japanese Garden · Sakura · Tranquil Water
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Noto+Serif+JP:wght@400;600;700&family=Nunito:wght@400;700;800&display=swap');

:root {
  --void:      #0e0a12;
  --dark:      #1a1220;
  --panel:     #1e1828;
  --panel-lt:  #2a2238;
  --ink:       #1a1018;
  --sakura:    #f0a8c0;
  --sakura-lt: #f8d0e0;
  --sakura-dk: #c06080;
  --sakura-glow:rgba(240,168,192,0.35);
  --water:     #2a6888;
  --water-lt:  #4a98b8;
  --water-glow:rgba(74,152,184,0.35);
  --gold:      #c8a040;
  --gold-lt:   #e8c060;
  --gold-glow: rgba(200,160,64,0.4);
  --jade:      #4a8a6a;
  --jade-lt:   #6aaa8a;
  --white:     #f8f4f0;
  --text:      #c8b8c8;
  --text-dim:  #5a4a5a;
  --radius:    10px;
  --radius-lg: 18px;
  --shadow:    0 4px 20px rgba(0,0,0,0.7);
  --shadow-lg: 0 8px 40px rgba(0,0,0,0.8);
  --font-title:'Noto Serif JP', Georgia, serif;
  --font-body: 'Nunito', sans-serif;
}

*,*::before,*::after{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{background:var(--void);color:var(--text);font-family:var(--font-body);min-height:100vh;overflow-x:hidden;}
body::before{content:'';position:fixed;inset:0;background:radial-gradient(ellipse 80% 50% at 50% 0%,rgba(240,168,192,0.08) 0%,transparent 55%),radial-gradient(ellipse 60% 40% at 50% 100%,rgba(42,104,136,0.12) 0%,transparent 55%);pointer-events:none;z-index:0;}

/* ── HEADER ─────────────────────────────────────────────────── */
header{display:flex;align-items:center;justify-content:space-between;padding:10px 32px;background:rgba(14,10,18,0.97);border-bottom:2px solid rgba(240,168,192,0.2);position:sticky;top:0;z-index:100;box-shadow:0 4px 20px rgba(0,0,0,0.8);}
header::after{content:'';position:absolute;bottom:0;left:0;right:0;height:2px;background:linear-gradient(90deg,transparent,var(--sakura),var(--gold-lt),var(--sakura),transparent);}
.logo{font-family:var(--font-title);font-size:1.55rem;font-weight:700;letter-spacing:2px;color:var(--sakura-lt);text-shadow:0 0 14px var(--sakura-glow);display:flex;align-items:center;gap:10px;}
.logo-icon{font-size:1.3rem;filter:drop-shadow(0 0 6px var(--sakura-glow));}
nav{display:flex;align-items:center;gap:20px;}
nav a{font-family:var(--font-body);font-weight:800;font-size:0.8rem;color:var(--text-dim);text-decoration:none;transition:color 0.2s;}
nav a:hover{color:var(--sakura-lt);}
#lang-switcher{position:relative;}
#lang-btn{font-family:var(--font-body);font-size:0.75rem;font-weight:800;padding:6px 12px;background:rgba(240,168,192,0.08);border:1px solid rgba(240,168,192,0.28);border-radius:var(--radius);color:var(--sakura-lt);cursor:pointer;transition:all 0.2s;display:flex;align-items:center;gap:6px;}
#lang-btn:hover{background:rgba(240,168,192,0.16);}
#lang-btn .arrow{font-size:0.6rem;opacity:0.7;transition:transform 0.2s;}
#lang-btn.open .arrow{transform:rotate(180deg);}
#lang-dropdown{display:none;position:absolute;top:calc(100% + 6px);right:0;background:var(--panel);border:1px solid rgba(240,168,192,0.2);border-radius:var(--radius);overflow:hidden;z-index:200;box-shadow:var(--shadow-lg);min-width:140px;}
#lang-dropdown.open{display:block;}
.lang-option{display:flex;align-items:center;gap:8px;padding:9px 14px;font-family:var(--font-body);font-size:0.8rem;font-weight:700;color:var(--text-dim);cursor:pointer;transition:background 0.15s;border-bottom:1px solid rgba(240,168,192,0.08);}
.lang-option:last-child{border-bottom:none;}
.lang-option:hover{background:rgba(240,168,192,0.12);color:var(--sakura-lt);}
.lang-option.active{color:var(--gold-lt);}
.lang-flag{font-size:1.1rem;line-height:1;}

/* ── GAME SECTION ───────────────────────────────────────────── */
#game-section{position:relative;z-index:1;display:flex;flex-direction:column;align-items:center;padding:14px 16px 44px;gap:10px;}

/* ── HUD ─────────────────────────────────────────────────────── */
#hud{display:flex;align-items:stretch;width:100%;max-width:960px;background:rgba(14,10,18,0.92);border:1px solid rgba(240,168,192,0.18);border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow);}
.hud-cell{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:1px;padding:9px 4px;border-right:1px solid rgba(240,168,192,0.1);}
.hud-cell:last-child{border-right:none;}
.hud-label{font-family:var(--font-body);font-size:0.47rem;font-weight:900;letter-spacing:2px;text-transform:uppercase;color:var(--text-dim);}
.hud-value{font-family:var(--font-title);font-size:1.2rem;font-weight:700;color:var(--gold-lt);line-height:1;text-shadow:0 0 8px var(--gold-glow);}
#hud-controls{display:flex;align-items:center;gap:5px;padding:0 10px;border-left:1px solid rgba(240,168,192,0.1);flex-shrink:0;}
.diff-btn{font-family:var(--font-body);font-size:0.68rem;font-weight:800;padding:5px 9px;background:transparent;border:1px solid rgba(240,168,192,0.2);border-radius:20px;color:var(--text-dim);cursor:pointer;transition:all 0.2s;touch-action:manipulation;}
.diff-btn.active,.diff-btn:hover{border-color:var(--sakura);color:var(--sakura-lt);background:rgba(240,168,192,0.1);}
#start-btn{font-family:var(--font-title);font-size:0.85rem;font-weight:700;letter-spacing:1px;padding:8px 14px;background:linear-gradient(135deg,#802050,#f0a8c0);border:none;border-radius:var(--radius);color:#fff;cursor:pointer;transition:all 0.15s;box-shadow:0 0 12px var(--sakura-glow);touch-action:manipulation;white-space:nowrap;}
#start-btn:hover{transform:translateY(-1px);box-shadow:0 0 22px var(--sakura-glow);}
#start-btn:active{transform:scale(0.97);}

/* ── MAIN LAYOUT ────────────────────────────────────────────── */
#game-wrap{display:flex;gap:14px;width:100%;max-width:960px;align-items:flex-start;}

/* ── POND CANVAS ─────────────────────────────────────────────── */
#pond-wrap{flex:1;min-width:280px;border-radius:var(--radius-lg);overflow:hidden;border:2px solid rgba(240,168,192,0.2);box-shadow:var(--shadow-lg);position:relative;background:var(--dark);}
#pond-canvas{display:block;width:100%;cursor:pointer;touch-action:none;}

/* day toast */
#day-toast{position:absolute;top:10px;left:50%;transform:translateX(-50%);font-family:var(--font-title);font-size:0.85rem;font-weight:600;padding:7px 18px;border-radius:20px;background:rgba(14,10,18,0.88);border:1px solid rgba(240,168,192,0.35);color:var(--sakura-lt);pointer-events:none;opacity:0;white-space:nowrap;z-index:10;}
#day-toast.show{animation:toast-in 2.5s ease forwards;}
@keyframes toast-in{0%{opacity:0;transform:translateX(-50%) translateY(-8px);}15%{opacity:1;transform:translateX(-50%) translateY(0);}75%{opacity:1;}100%{opacity:0;}}

/* ── SIDE PANEL ─────────────────────────────────────────────── */
#side-panel{width:300px;flex-shrink:0;display:flex;flex-direction:column;gap:10px;}

/* tabs */
.tabs{display:flex;border-radius:var(--radius-lg) var(--radius-lg) 0 0;overflow:hidden;border:1px solid rgba(240,168,192,0.18);border-bottom:none;}
.tab-btn{flex:1;font-family:var(--font-title);font-size:0.72rem;font-weight:600;padding:10px 4px;background:rgba(14,10,18,0.9);border:none;border-right:1px solid rgba(240,168,192,0.1);color:var(--text-dim);cursor:pointer;transition:all 0.18s;touch-action:manipulation;}
.tab-btn:last-child{border-right:none;}
.tab-btn:hover{color:var(--sakura-lt);}
.tab-btn.active{background:var(--panel);color:var(--sakura-lt);border-bottom:2px solid var(--sakura);}

.tab-content{background:var(--panel);border:1px solid rgba(240,168,192,0.18);border-top:none;border-radius:0 0 var(--radius-lg) var(--radius-lg);padding:14px;display:none;max-height:480px;overflow-y:auto;scrollbar-width:thin;scrollbar-color:rgba(240,168,192,0.3) transparent;}
.tab-content.active{display:block;}
.tab-content::-webkit-scrollbar{width:4px;}
.tab-content::-webkit-scrollbar-thumb{background:rgba(240,168,192,0.3);border-radius:4px;}

/* ── POND FISH LIST ──────────────────────────────────────────── */
.fish-card{display:flex;align-items:center;gap:10px;background:rgba(14,10,18,0.7);border:1px solid rgba(240,168,192,0.12);border-radius:var(--radius);padding:8px 10px;margin-bottom:7px;transition:all 0.2s;}
.fish-card:last-child{margin-bottom:0;}
.fish-card:hover{border-color:rgba(240,168,192,0.28);}
.fish-card img,.fish-card .fish-img-placeholder{width:60px;height:33px;object-fit:contain;flex-shrink:0;}
.fish-info{flex:1;min-width:0;}
.fish-name-row{display:flex;align-items:center;gap:6px;margin-bottom:2px;}
.fish-name{font-family:var(--font-title);font-size:0.78rem;font-weight:600;color:var(--sakura-lt);}
.fish-size-badge{font-family:var(--font-body);font-size:0.6rem;font-weight:800;padding:1px 6px;border-radius:8px;background:rgba(240,168,192,0.15);color:var(--sakura);}
.fish-status{font-family:var(--font-body);font-size:0.68rem;font-weight:700;color:var(--text-dim);}
.fish-status.hungry{color:#ff8888;}
.fish-status.ready{color:var(--jade-lt);}
.fish-grow-bar{height:4px;background:rgba(255,255,255,0.08);border-radius:4px;overflow:hidden;margin-top:4px;}
.fish-grow-fill{height:100%;background:linear-gradient(90deg,var(--water),var(--water-lt));border-radius:4px;transition:width 0.4s;}
.fish-value{font-family:var(--font-title);font-size:0.82rem;font-weight:700;color:var(--gold-lt);white-space:nowrap;}
.feed-btn,.sell-one-btn{font-family:var(--font-body);font-size:0.7rem;font-weight:800;padding:4px 8px;border:none;border-radius:6px;cursor:pointer;transition:all 0.15s;touch-action:manipulation;}
.feed-btn{background:rgba(74,136,106,0.3);color:var(--jade-lt);border:1px solid rgba(74,136,106,0.4);}
.feed-btn:hover{background:rgba(74,136,106,0.5);}
.sell-one-btn{background:rgba(200,160,64,0.2);color:var(--gold-lt);border:1px solid rgba(200,160,64,0.4);}
.sell-one-btn:hover{background:rgba(200,160,64,0.4);}

/* ── SHOP ────────────────────────────────────────────────────── */
.shop-card{display:flex;align-items:center;gap:10px;background:rgba(14,10,18,0.7);border:1px solid rgba(240,168,192,0.12);border-radius:var(--radius);padding:10px;margin-bottom:8px;transition:all 0.2s;}
.shop-card:hover{border-color:rgba(240,168,192,0.28);}
.shop-card img,.shop-img-placeholder{width:64px;height:35px;object-fit:contain;flex-shrink:0;}
.shop-info{flex:1;}
.shop-name{font-family:var(--font-title);font-size:0.82rem;font-weight:700;color:var(--sakura-lt);margin-bottom:2px;}
.shop-desc{font-size:0.7rem;font-weight:600;color:var(--text-dim);line-height:1.4;}
.shop-price{font-family:var(--font-title);font-size:0.88rem;font-weight:700;color:var(--gold-lt);}
.buy-btn{font-family:var(--font-title);font-size:0.72rem;font-weight:700;padding:6px 12px;background:linear-gradient(135deg,#802050,#f0a8c0);border:none;border-radius:8px;color:#fff;cursor:pointer;transition:all 0.15s;white-space:nowrap;touch-action:manipulation;}
.buy-btn:hover{transform:scale(1.04);box-shadow:0 0 10px var(--sakura-glow);}
.buy-btn:disabled{background:rgba(80,60,80,0.4);color:var(--text-dim);cursor:default;transform:none;box-shadow:none;}
.locked-badge{font-size:0.65rem;font-weight:800;color:var(--text-dim);padding:4px 8px;background:rgba(60,40,60,0.5);border-radius:6px;border:1px solid rgba(240,168,192,0.12);}

/* ── UPGRADES ────────────────────────────────────────────────── */
.upgrade-card{display:flex;align-items:center;gap:10px;background:rgba(14,10,18,0.7);border:1px solid rgba(240,168,192,0.12);border-radius:var(--radius);padding:10px;margin-bottom:8px;transition:all 0.2s;}
.upgrade-card.owned{border-color:rgba(74,136,106,0.4);background:rgba(30,40,30,0.5);}
.upgrade-icon{font-size:1.6rem;flex-shrink:0;width:36px;text-align:center;}
.upgrade-info{flex:1;}
.upgrade-name{font-family:var(--font-title);font-size:0.8rem;font-weight:700;color:var(--sakura-lt);}
.upgrade-desc{font-size:0.7rem;color:var(--text-dim);font-weight:600;margin-top:2px;}
.upgrade-price{font-family:var(--font-title);font-size:0.82rem;color:var(--gold-lt);}
.upgrade-owned{font-size:0.75rem;font-weight:800;color:var(--jade-lt);}
.upg-btn{font-family:var(--font-title);font-size:0.7rem;font-weight:700;padding:6px 12px;background:linear-gradient(135deg,#305080,#4a98b8);border:none;border-radius:8px;color:#fff;cursor:pointer;transition:all 0.15s;touch-action:manipulation;}
.upg-btn:hover{box-shadow:0 0 10px var(--water-glow);}
.upg-btn:disabled{background:rgba(40,50,60,0.4);color:var(--text-dim);cursor:default;box-shadow:none;}

/* ── BOTTOM ACTIONS ──────────────────────────────────────────── */
#bottom-actions{display:flex;gap:8px;width:100%;max-width:960px;flex-wrap:wrap;}
.action-btn{flex:1;font-family:var(--font-title);font-size:0.82rem;font-weight:700;padding:11px 14px;border:none;border-radius:var(--radius);cursor:pointer;transition:all 0.15s;touch-action:manipulation;white-space:nowrap;}
#feed-all-btn{background:rgba(74,136,106,0.25);border:1px solid rgba(74,136,106,0.45);color:var(--jade-lt);}
#feed-all-btn:hover{background:rgba(74,136,106,0.4);}
#next-day-btn{background:linear-gradient(135deg,#204060,#4a98b8);color:#fff;box-shadow:0 0 10px var(--water-glow);}
#next-day-btn:hover{transform:translateY(-1px);box-shadow:0 0 18px var(--water-glow);}

/* ── SEASON BANNER ───────────────────────────────────────────── */
#season-banner{width:100%;max-width:960px;text-align:center;font-family:var(--font-title);font-size:0.85rem;font-weight:600;padding:7px 20px;border-radius:var(--radius);background:var(--panel);border:1px solid rgba(240,168,192,0.18);color:var(--sakura-lt);transition:all 0.4s;letter-spacing:1px;}

/* ── TOAST NOTIFICATION ──────────────────────────────────────── */
#toast{position:fixed;bottom:24px;left:50%;transform:translateX(-50%);font-family:var(--font-title);font-size:0.85rem;font-weight:600;padding:10px 24px;border-radius:20px;background:rgba(14,10,18,0.95);border:1px solid rgba(240,168,192,0.4);color:var(--sakura-lt);z-index:200;opacity:0;pointer-events:none;white-space:nowrap;box-shadow:var(--shadow);}
#toast.show{animation:toast-pop 2.5s ease forwards;}
@keyframes toast-pop{0%{opacity:0;transform:translateX(-50%) translateY(12px);}12%{opacity:1;transform:translateX(-50%) translateY(0);}80%{opacity:1;}100%{opacity:0;}}

/* ── OVERLAY ─────────────────────────────────────────────────── */
#overlay{position:fixed;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px;padding:28px;background:rgba(10,8,14,0.94);backdrop-filter:blur(12px);transition:opacity 0.4s;z-index:300;}
#overlay.hidden{opacity:0;pointer-events:none;}
.overlay-icon{font-size:5rem;animation:float-koi 3s ease-in-out infinite;filter:drop-shadow(0 0 16px var(--sakura-glow));}
@keyframes float-koi{0%,100%{transform:translateY(0) rotate(-4deg);}50%{transform:translateY(-14px) rotate(4deg);}}
.overlay-title{font-family:var(--font-title);font-size:2.4rem;font-weight:700;letter-spacing:4px;color:var(--sakura-lt);text-align:center;text-shadow:0 0 22px var(--sakura-glow);}
.overlay-sub{color:var(--text-dim);font-size:1rem;font-weight:700;text-align:center;max-width:440px;line-height:1.7;}
.overlay-btn{font-family:var(--font-title);font-size:0.95rem;font-weight:700;letter-spacing:2px;padding:13px 48px;background:linear-gradient(135deg,#802050,#f0a8c0);border:none;border-radius:var(--radius-lg);color:#fff;cursor:pointer;transition:all 0.2s;box-shadow:0 0 22px var(--sakura-glow);touch-action:manipulation;}
.overlay-btn:hover{transform:translateY(-2px);box-shadow:0 0 38px var(--sakura-glow);}

/* ── ABOUT / LEGAL ───────────────────────────────────────────── */
.page-hero{position:relative;z-index:1;padding:50px 36px 38px;background:var(--panel);border-bottom:2px solid rgba(240,168,192,0.18);}
.page-hero::after{content:'';position:absolute;bottom:0;left:0;right:0;height:2px;background:linear-gradient(90deg,transparent,var(--sakura),var(--gold-lt),var(--sakura),transparent);}
.page-hero h1{font-family:var(--font-title);font-size:2.2rem;font-weight:700;letter-spacing:3px;color:var(--sakura-lt);margin-bottom:10px;text-shadow:0 0 16px var(--sakura-glow);}
.page-hero .hero-icon{font-size:3.5rem;margin-bottom:14px;filter:drop-shadow(0 0 10px var(--sakura-glow));}
.page-hero p{font-size:1.05rem;font-weight:600;color:var(--text-dim);max-width:640px;line-height:1.7;}
.content-section{position:relative;z-index:1;padding:50px 36px;max-width:960px;margin:0 auto;}
.content-section+.content-section{border-top:1px solid rgba(240,168,192,0.1);}
.section-heading{font-family:var(--font-title);font-size:1.5rem;font-weight:700;letter-spacing:2px;color:var(--sakura-lt);margin-bottom:22px;display:flex;align-items:center;gap:14px;}
.section-heading::after{content:'';flex:1;height:1px;background:linear-gradient(90deg,rgba(240,168,192,0.4),transparent);}
.card-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.info-card{background:var(--panel);border:1px solid rgba(240,168,192,0.15);border-radius:var(--radius-lg);padding:22px;border-left:3px solid var(--sakura);transition:all 0.2s;}
.info-card:hover{transform:translateY(-2px);}
.info-card h3{font-family:var(--font-title);font-size:0.92rem;color:var(--gold-lt);margin-bottom:10px;}
.info-card p,.info-card li{color:var(--text-dim);font-size:0.95rem;line-height:1.75;font-weight:600;}
.info-card ul{padding-left:0;list-style:none;display:flex;flex-direction:column;gap:5px;}
.info-card li::before{content:'🌸 ';}
.steps{display:flex;flex-direction:column;gap:14px;}
.step{display:flex;gap:16px;background:var(--panel);border-radius:var(--radius);padding:16px;border-left:3px solid var(--gold-lt);}
.step-num{font-family:var(--font-title);font-size:2rem;font-weight:700;color:var(--gold-lt);flex-shrink:0;line-height:1;}
.step-body h4{font-family:var(--font-title);font-size:0.9rem;color:var(--white);margin-bottom:4px;}
.step-body p{color:var(--text-dim);font-size:0.95rem;line-height:1.65;font-weight:600;}
.legal-content{position:relative;z-index:1;padding:48px 36px;max-width:820px;margin:0 auto;}
.legal-content h2{font-family:var(--font-title);font-size:0.95rem;color:var(--gold-lt);margin:32px 0 12px;letter-spacing:1px;}
.legal-content h2:first-child{margin-top:0;}
.legal-content p,.legal-content li{color:var(--text-dim);font-size:0.95rem;line-height:1.8;font-weight:600;margin-bottom:10px;}
.legal-content ul{padding-left:20px;margin-bottom:16px;}
.highlight{background:rgba(240,168,192,0.07);border-left:3px solid var(--sakura);padding:12px 16px;border-radius:0 8px 8px 0;margin:16px 0;}
.legal-divider{height:1px;background:rgba(240,168,192,0.12);margin:28px 0;}
.last-updated{font-size:0.82rem;color:var(--text-dim);font-style:italic;margin-bottom:28px;}
.contact-row{display:flex;gap:14px;flex-wrap:wrap;}
.contact-card{flex:1;min-width:180px;background:var(--panel);border:1px solid rgba(240,168,192,0.12);border-radius:var(--radius-lg);padding:18px 22px;display:flex;flex-direction:column;gap:6px;}
.contact-card .label{font-size:0.6rem;font-weight:900;letter-spacing:2px;text-transform:uppercase;color:var(--text-dim);}
.contact-card a{color:var(--sakura-lt);font-size:0.9rem;font-weight:700;text-decoration:none;transition:color 0.2s;word-break:break-all;}
.contact-card a:hover{color:var(--gold-lt);}
footer{position:relative;z-index:1;background:var(--void);border-top:1px solid rgba(240,168,192,0.1);padding:18px 36px;display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:12px;}
.footer-left{font-size:0.8rem;font-weight:700;color:var(--text-dim);}
.footer-links{display:flex;gap:18px;}
.footer-links a{font-size:0.8rem;font-weight:700;color:var(--text-dim);text-decoration:none;transition:color 0.2s;}
.footer-links a:hover{color:var(--sakura-lt);}

/* ── RESPONSIVE ─────────────────────────────────────────────── */
@media(max-width:768px){header{padding:10px 16px;}.logo{font-size:1.2rem;}nav{gap:14px;}#game-section{padding:10px 8px 40px;gap:8px;}#game-wrap{flex-direction:column;}#side-panel{width:100%;}.card-grid{grid-template-columns:1fr;}.content-section{padding:40px 16px;}.page-hero{padding:36px 20px;}.page-hero h1{font-size:1.8rem;}.legal-content{padding:36px 20px;}footer{padding:14px 20px;flex-direction:column;text-align:center;}}
@media(max-width:480px){header{padding:8px 12px;}.logo{font-size:1rem;}nav a{display:none;}nav a.always{display:block;}#hud{flex-wrap:wrap;}.hud-cell{min-width:calc(33%);padding:7px 3px;}.hud-value{font-size:1rem;}#hud-controls{width:100%;justify-content:center;border-left:none;border-top:1px solid rgba(240,168,192,0.1);padding:8px;}.overlay-title{font-size:1.8rem;letter-spacing:2px;}#lang-dropdown{right:auto;left:0;}}
@media(hover:none){.info-card:hover,.shop-card:hover,.fish-card:hover{transform:none;border-color:initial;}.overlay-btn:hover,#start-btn:hover,#next-day-btn:hover{transform:none;box-shadow:initial;}.overlay-btn:active,#start-btn:active,#next-day-btn:active,.buy-btn:active,.upg-btn:active{transform:scale(0.97);}}