/* Spherella — Main Stylesheet | Dark & Light Mode */

:root {
  --accent-a:#00d4ff; --accent-b:#0077ff; --accent-mid:#00a8ff;
  --bg-page:#f7f9fc; --bg-surface:#ffffff; --bg-surface-2:#f0f4f9;
  --bg-glass:rgba(255,255,255,0.88); --border:rgba(0,0,0,0.09);
  --border-focus:var(--accent-mid); --fg:#0d0f14; --fg-2:#4a5568;
  --fg-muted:#718096; --link:#0055cc; --link-hover:#003fa0; --link-visited:#6b21a8;
  --shadow-sm:0 1px 3px rgba(0,0,0,.07),0 1px 2px rgba(0,0,0,.04);
  --shadow-md:0 4px 16px rgba(0,0,0,.08),0 2px 6px rgba(0,0,0,.04);
  --shadow-lg:0 10px 40px rgba(0,0,0,.10),0 4px 12px rgba(0,0,0,.05);
  --shadow-glow:0 0 0 3px rgba(0,168,255,.22);
  --mark-bg:#fff176; --mark-fg:#1a1a1a;
  --btn:linear-gradient(135deg,var(--accent-mid),var(--accent-b)); --btn-fg:#fff;
  --result-hover:rgba(0,168,255,.04); --favicon-bg:#eef2f7;
  --pill-bg:rgba(0,168,255,.09); --pill-fg:var(--accent-b); --pill-hover:rgba(0,168,255,.17);
  --orb-1:rgba(0,180,255,.10); --orb-2:rgba(0,80,220,.07);
  --header-bg:rgba(255,255,255,.88); --header-bdr:rgba(0,0,0,.07);
}
[data-theme="dark"] {
  --bg-page:#080b12; --bg-surface:#0e1322; --bg-surface-2:#141a2e;
  --bg-glass:rgba(14,19,34,.90); --border:rgba(255,255,255,.08);
  --border-focus:var(--accent-a); --fg:#e6edf5; --fg-2:#8ea3bc;
  --fg-muted:#5a6e85; --link:#48bcff; --link-hover:#80d4ff; --link-visited:#c084fc;
  --shadow-sm:0 1px 3px rgba(0,0,0,.45); --shadow-md:0 4px 16px rgba(0,0,0,.55);
  --shadow-lg:0 10px 40px rgba(0,0,0,.65); --shadow-glow:0 0 0 3px rgba(0,212,255,.18);
  --mark-bg:rgba(255,210,0,.16); --mark-fg:#ffe082;
  --btn:linear-gradient(135deg,#00b4e0,#0062cc);
  --result-hover:rgba(0,212,255,.05); --favicon-bg:rgba(255,255,255,.06);
  --pill-bg:rgba(0,212,255,.09); --pill-fg:var(--accent-a); --pill-hover:rgba(0,212,255,.17);
  --orb-1:rgba(0,180,255,.06); --orb-2:rgba(0,80,220,.05);
  --header-bg:rgba(14,19,34,.92); --header-bdr:rgba(255,255,255,.06);
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{font-size:16px;scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:'Inter',system-ui,-apple-system,sans-serif;background:var(--bg-page);color:var(--fg);line-height:1.6;min-height:100vh;transition:background .3s,color .3s;-webkit-font-smoothing:antialiased}
a{color:var(--link);text-decoration:none;transition:color .15s}
a:hover{color:var(--link-hover)} a:visited{color:var(--link-visited)}
mark{background:var(--mark-bg);color:var(--mark-fg);border-radius:3px;padding:0 2px}
::selection{background:rgba(0,168,255,.2);color:var(--fg)}
::-webkit-scrollbar{width:5px}
::-webkit-scrollbar-thumb{background:var(--border);border-radius:3px}
:focus-visible{outline:2px solid var(--accent-mid);outline-offset:2px;border-radius:4px}

/* Logo */
.logo-text{font-family:'Space Grotesk',sans-serif;font-weight:700;letter-spacing:-.04em;background:linear-gradient(135deg,var(--accent-a) 0%,var(--accent-b) 70%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;line-height:1}
.logo-text--sm{font-family:'Space Grotesk',sans-serif;font-weight:700;font-size:1.3rem;letter-spacing:-.04em;white-space:nowrap;background:linear-gradient(135deg,var(--accent-a),var(--accent-b));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}

/* Theme toggle */
.theme-toggle{display:flex;align-items:center;justify-content:center;width:40px;height:40px;border-radius:50%;border:1px solid var(--border);background:var(--bg-surface);cursor:pointer;color:var(--fg-2);font-size:1.15rem;transition:all .2s;box-shadow:var(--shadow-sm);flex-shrink:0}
.theme-toggle:hover{background:var(--bg-surface-2);box-shadow:var(--shadow-md);color:var(--fg)}
.theme-toggle--sm{width:36px;height:36px;font-size:1rem}
[data-theme="dark"]  .theme-icon--sun,[data-theme="light"] .theme-icon--moon{display:none}
[data-theme="dark"]  .theme-icon--moon,[data-theme="light"] .theme-icon--sun{display:block}

/* Search */
.search-input-group{position:relative;display:flex;align-items:center;background:var(--bg-surface);border:1.5px solid var(--border);border-radius:48px;box-shadow:var(--shadow-md);transition:box-shadow .2s,border-color .2s;overflow:visible}
.search-input-group:focus-within{border-color:var(--border-focus);box-shadow:var(--shadow-lg),var(--shadow-glow)}
.search-input-group--sm{border-radius:36px;box-shadow:var(--shadow-sm)}
.search-icon{flex-shrink:0;width:44px;display:flex;align-items:center;justify-content:center;color:var(--fg-muted);pointer-events:none}
.search-icon svg{width:20px;height:20px}
.search-input{flex:1;min-width:0;padding:16px 8px;font-size:1rem;font-family:inherit;border:none;outline:none;background:transparent;color:var(--fg);line-height:1.4}
.search-input::placeholder{color:var(--fg-muted)}
.search-input--sm{padding:12px 8px;font-size:.95rem}
.search-btn{flex-shrink:0;margin:5px;padding:10px 24px;border:none;border-radius:40px;background:var(--btn);color:var(--btn-fg);font-size:.875rem;font-weight:600;font-family:inherit;cursor:pointer;transition:all .2s;white-space:nowrap}
.search-btn:hover{filter:brightness(1.12);box-shadow:0 4px 16px rgba(0,120,255,.35)}
.search-btn:active{transform:scale(.97)}
.search-btn--sm{margin:4px;padding:8px 12px;font-size:.82rem;display:flex;align-items:center;gap:4px}
.search-btn--sm svg{width:15px;height:15px}

/* Autocomplete */
.autocomplete-dropdown{position:absolute;top:calc(100% + 8px);left:0;right:0;background:var(--bg-surface);border:1px solid var(--border);border-radius:16px;box-shadow:var(--shadow-lg);overflow:hidden;z-index:100;animation:fadeDown .14s ease}
@keyframes fadeDown{from{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:translateY(0)}}
.autocomplete-item{display:flex;align-items:center;gap:10px;padding:10px 18px;cursor:pointer;font-size:.9rem;color:var(--fg);transition:background .1s}
.autocomplete-item:hover,.autocomplete-item.active{background:var(--result-hover)}
.autocomplete-item svg{width:14px;height:14px;color:var(--fg-muted);flex-shrink:0}

/* ── HOME ── */
.home-page{display:flex;flex-direction:column;min-height:100vh;position:relative;overflow:hidden}
.home-page::before,.home-page::after{content:'';position:fixed;border-radius:50%;pointer-events:none;z-index:0}
.home-page::before{width:700px;height:700px;background:radial-gradient(circle,var(--orb-1) 0%,transparent 70%);top:-200px;right:-150px;animation:drift1 22s ease-in-out infinite alternate}
.home-page::after{width:500px;height:500px;background:radial-gradient(circle,var(--orb-2) 0%,transparent 70%);bottom:-100px;left:-100px;animation:drift2 28s ease-in-out infinite alternate}
@keyframes drift1{from{transform:translate(0,0) scale(1)}to{transform:translate(40px,30px) scale(1.06)}}
@keyframes drift2{from{transform:translate(0,0) scale(1)}to{transform:translate(-30px,-20px) scale(1.08)}}

.home-header{position:relative;z-index:10;padding:16px 24px;display:flex;justify-content:flex-end}
.home-nav{display:flex;align-items:center;gap:8px}
.nav-links{display:flex;align-items:center;gap:4px}
.nav-link{padding:6px 14px;border-radius:20px;font-size:.85rem;font-weight:500;color:var(--fg-2);transition:all .15s}
.nav-link:hover,.nav-link.active{background:var(--pill-bg);color:var(--pill-fg)}
.nav-link:visited{color:var(--fg-2)}.nav-link.active:visited{color:var(--pill-fg)}

.home-main{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:40px 20px;position:relative;z-index:10}
.home-logo-wrap{text-align:center;margin-bottom:48px;animation:fadeUp .6s ease both}
.home-logo{display:flex;align-items:center;justify-content:center;gap:14px;margin-bottom:10px}
.logo-sphere{display:block;width:64px;height:64px;animation:spin-slow 22s linear infinite;filter:drop-shadow(0 0 18px rgba(0,180,255,.28))}
.logo-sphere--sm{width:36px;height:36px}
@keyframes spin-slow{from{transform:rotate(0deg)}to{transform:rotate(360deg)}}
.home-logo .logo-text{font-size:clamp(2.4rem,6vw,3.8rem)}
.home-tagline{font-size:.78rem;color:var(--fg-muted);letter-spacing:.06em;text-transform:uppercase;font-weight:500}
.search-box-wrap{width:100%;max-width:620px;margin-bottom:28px;animation:fadeUp .6s .1s ease both}
.search-form{position:relative}
.trending{display:flex;align-items:center;gap:10px;flex-wrap:wrap;justify-content:center;animation:fadeUp .6s .2s ease both}
.trending-label{font-size:.75rem;font-weight:600;color:var(--fg-muted);text-transform:uppercase;letter-spacing:.07em}
.trending-tags{display:flex;flex-wrap:wrap;gap:7px}
.trending-tag{padding:4px 12px;background:var(--pill-bg);color:var(--pill-fg);border-radius:20px;font-size:.78rem;font-weight:500;transition:all .15s;border:1px solid transparent}
.trending-tag:hover{background:var(--pill-hover);border-color:var(--border-focus);transform:translateY(-1px)}
.trending-tag:visited{color:var(--pill-fg)}
.home-footer{position:relative;z-index:10;padding:20px 24px;text-align:center}
.footer-text{font-size:.78rem;color:var(--fg-muted)}
.footer-text a{color:var(--fg-muted)}.footer-text a:hover{color:var(--fg-2)}

@keyframes fadeUp{from{opacity:0;transform:translateY(18px)}to{opacity:1;transform:translateY(0)}}

/* ── RESULTS ── */
.results-page{display:flex;flex-direction:column;min-height:100vh}
.results-header{position:sticky;top:0;z-index:50;background:var(--header-bg);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid var(--header-bdr);box-shadow:var(--shadow-sm)}
.results-header-inner{display:flex;align-items:center;gap:14px;padding:10px 24px;max-width:1200px;margin:0 auto}
.results-logo{display:flex;align-items:center;gap:8px;flex-shrink:0;text-decoration:none}
.results-search-wrap{flex:1;max-width:640px;position:relative}
.results-search-form{position:relative}
.results-main{flex:1;padding:24px 24px 60px}
.results-container{max-width:760px;margin:0 auto}
.results-meta{font-size:.8rem;color:var(--fg-muted);padding:0 4px 18px;border-bottom:1px solid var(--border);margin-bottom:6px}
.results-meta strong{font-weight:600;color:var(--fg-2)}.results-meta em{font-style:normal;font-weight:500;color:var(--fg-2)}

.error-banner{display:flex;align-items:center;gap:10px;background:rgba(220,38,38,.08);border:1px solid rgba(220,38,38,.2);color:#dc2626;padding:12px 16px;border-radius:10px;margin-bottom:18px;font-size:.9rem}
[data-theme="dark"] .error-banner{background:rgba(220,38,38,.12);border-color:rgba(220,38,38,.25);color:#f87171}
.error-icon{font-size:1.1rem;flex-shrink:0}

.results-list{list-style:none}
.result-item{padding:18px 12px;border-radius:12px;margin-bottom:2px;transition:background .15s;animation:fadeIn .3s ease both}
.result-item:hover{background:var(--result-hover)}
@keyframes fadeIn{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}
.result-item:nth-child(1){animation-delay:.02s}.result-item:nth-child(2){animation-delay:.06s}
.result-item:nth-child(3){animation-delay:.10s}.result-item:nth-child(4){animation-delay:.14s}
.result-item:nth-child(5){animation-delay:.18s}.result-item:nth-child(6){animation-delay:.22s}
.result-item:nth-child(7){animation-delay:.26s}.result-item:nth-child(8){animation-delay:.30s}
.result-item:nth-child(9){animation-delay:.34s}.result-item:nth-child(10){animation-delay:.38s}

.result-url-row{display:flex;align-items:center;gap:6px;margin-bottom:4px;overflow:hidden}
.result-favicon{width:16px;height:16px;border-radius:3px;background:var(--favicon-bg);flex-shrink:0}
.result-domain{font-size:.78rem;font-weight:500;color:var(--fg-2);white-space:nowrap}
.result-url-path{font-size:.75rem;color:var(--fg-muted);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.result-title{font-size:1.05rem;font-weight:600;line-height:1.35;margin-bottom:4px}
.result-link{color:var(--link);text-decoration:none;transition:color .15s}
.result-link:hover{color:var(--link-hover);text-decoration:underline;text-underline-offset:3px}
.result-link:visited{color:var(--link-visited)}
.result-description{font-size:.875rem;line-height:1.55;color:var(--fg-2);margin-bottom:3px}
.result-date{display:block;font-size:.75rem;color:var(--fg-muted);margin-top:3px}

.pagination{display:flex;align-items:center;justify-content:center;gap:6px;margin-top:44px;flex-wrap:wrap}
.pagination-btn{padding:8px 18px;border-radius:24px;background:var(--bg-surface);border:1px solid var(--border);color:var(--fg-2);font-size:.85rem;font-weight:500;transition:all .15s;box-shadow:var(--shadow-sm)}
.pagination-btn:hover{background:var(--pill-bg);color:var(--pill-fg);border-color:var(--border-focus);transform:translateY(-1px)}
.pagination-btn:visited{color:var(--fg-2)}
.pagination-pages{display:flex;gap:4px}
.pagination-page{display:flex;align-items:center;justify-content:center;width:36px;height:36px;border-radius:50%;font-size:.85rem;font-weight:500;color:var(--fg-2);transition:all .15s}
.pagination-page:hover{background:var(--pill-bg);color:var(--pill-fg)}
.pagination-page:visited{color:var(--fg-2)}
.pagination-page--active{background:var(--btn);color:#fff;font-weight:700;box-shadow:0 2px 8px rgba(0,120,255,.3);cursor:default}

.no-results{text-align:center;padding:80px 24px;animation:fadeUp .4s ease both}
.no-results-icon{width:80px;height:80px;margin:0 auto 24px;color:var(--fg-muted);opacity:.4}
.no-results h2{font-size:1.4rem;font-weight:600;margin-bottom:8px}
.no-results h2 em{font-style:normal;background:linear-gradient(135deg,var(--accent-a),var(--accent-b));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.no-results>p{color:var(--fg-muted);margin-bottom:24px}
.no-results-tips{display:inline-block;text-align:left;background:var(--bg-surface);border:1px solid var(--border);border-radius:12px;padding:16px 24px;margin-top:8px;box-shadow:var(--shadow-sm)}
.no-results-tips p{font-size:.85rem;font-weight:600;color:var(--fg-2);margin-bottom:8px}
.no-results-tips ul{padding-left:20px}
.no-results-tips li{font-size:.85rem;color:var(--fg-muted);margin-bottom:4px}
.no-results-tips code{font-family:monospace;background:var(--bg-surface-2);padding:1px 5px;border-radius:4px;font-size:.82rem;color:var(--accent-mid)}

.results-footer{padding:18px 24px;border-top:1px solid var(--border);background:var(--bg-surface)}
.results-footer-inner{display:flex;align-items:center;gap:8px;max-width:760px;margin:0 auto;font-size:.78rem;color:var(--fg-muted)}
.footer-logo{font-family:'Space Grotesk',sans-serif;font-weight:700;font-size:.9rem;background:linear-gradient(135deg,var(--accent-a),var(--accent-b));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.footer-sep{color:var(--border)}.footer-link{color:var(--fg-muted)}.footer-link:hover{color:var(--fg-2)}

/* ── ERROR PAGE ── */
.error-page{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:40px 20px}
.error-page-inner{text-align:center;max-width:480px}
.error-page-code{font-family:'Space Grotesk',sans-serif;font-size:clamp(6rem,20vw,9rem);font-weight:800;line-height:1;background:linear-gradient(135deg,var(--accent-a),var(--accent-b));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;opacity:.18;margin-bottom:16px;letter-spacing:-.05em}
.error-page-title{font-size:1.5rem;font-weight:600;margin-bottom:10px}
.error-page-body{color:var(--fg-muted);margin-bottom:32px}
.error-page-btn{display:inline-flex;align-items:center;gap:6px;padding:12px 28px;border-radius:40px;background:var(--btn);color:#fff;font-size:.9rem;font-weight:600;transition:all .2s;box-shadow:0 4px 16px rgba(0,120,255,.3)}
.error-page-btn:hover{filter:brightness(1.1);transform:translateY(-2px);box-shadow:0 8px 24px rgba(0,120,255,.4);color:#fff}
.error-page-btn:visited{color:#fff}

/* Responsive */
@media(max-width:640px){
  .results-header-inner{padding:8px 14px;gap:10px}
  .results-logo .logo-text--sm{display:none}
  .results-main{padding:16px 14px 48px}
  .result-item{padding:14px 6px}
  .nav-links{display:none}
  .logo-sphere{width:48px;height:48px}
}
@media(max-width:480px){
  .search-btn:not(.search-btn--sm){display:none}
}

/* ── Engine status bar ── */
.engine-bar{display:flex;flex-wrap:wrap;gap:5px;padding:0 4px 16px;margin-bottom:2px;border-bottom:1px solid var(--border)}
.engine-badge{display:inline-flex;align-items:center;gap:4px;padding:3px 9px;border-radius:12px;font-size:.72rem;font-weight:500;letter-spacing:.01em;border:1px solid transparent;transition:opacity .15s}
.engine-badge--ok{background:rgba(0,168,255,.07);border-color:rgba(0,168,255,.18);color:var(--fg-2)}
.engine-badge--fail{background:rgba(220,38,38,.06);border-color:rgba(220,38,38,.15);color:var(--fg-muted);opacity:.65}
[data-theme="dark"] .engine-badge--ok{background:rgba(0,212,255,.07);border-color:rgba(0,212,255,.18)}
[data-theme="dark"] .engine-badge--fail{background:rgba(220,38,38,.10);border-color:rgba(220,38,38,.2)}
.engine-count{color:var(--accent-mid);font-weight:600}
.engine-err{color:#ef4444;font-size:.8rem}

/* ── Source chips on results ── */
.result-sources{display:flex;gap:4px;flex-wrap:wrap;margin-top:5px}
.result-source{padding:2px 7px;border-radius:8px;font-size:.68rem;font-weight:500;background:var(--pill-bg);color:var(--pill-fg);letter-spacing:.01em}