/* AliCuento — Pastel Futurista theme */
:root{
  --bg:#f5f7fb;
  --card:linear-gradient(135deg,#fbf7ff 0%, #eefaff 50%, #f8fff6 100%);
  --accent:#7c5cff;
  --accent-2:#ffffff;
  --muted:#6b7280;
  --glass: rgba(255,255,255,0.7);
  --shadow: 0 8px 30px rgba(16,24,40,0.08);
}
*{box-sizing:border-box}
.body-bg{background:radial-gradient(1200px 400px at 10% 10%,#f0e8ff 0%,transparent 20%),radial-gradient(800px 300px at 90% 90%,#e8fff8 0%,transparent 20%),var(--bg)}
body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,'Helvetica Neue',Arial}
.container{max-width:1000px;margin:0 auto;padding:0.5rem}
.center{display:flex;align-items:center;justify-content:center}
.card{background:var(--card);border-radius:14px;padding:1.25rem;box-shadow:0 14px 44px rgba(16,24,40,0.10);border:1px solid rgba(124,92,255,0.12)}
.brand{display:flex;gap:12px;align-items:center}
.logo{width:56px;height:56px;border-radius:12px;background:linear-gradient(135deg,var(--accent),#00d4ff);display:flex;align-items:center;justify-content:center;color:var(--accent-2);font-weight:700;box-shadow:0 10px 30px rgba(124,92,255,0.12)}
h1,h2{margin:0;color:#0f1724}
.muted{color:var(--muted);font-size:0.95rem}
/* Registration form */
.hero{display:grid;grid-template-columns:1fr;gap:0.75rem;align-items:center;padding-bottom:0.5rem}
.register{padding:1rem;background:linear-gradient(180deg,rgba(255,255,255,0.75),rgba(255,255,255,0.65));border-radius:10px;border:1px solid rgba(124,92,255,0.08)}
.register input[type=text],.register input[type=email]{width:100%;padding:0.9rem;border-radius:10px;border:1px solid rgba(16,24,40,0.10);background:transparent}
.primary{background:linear-gradient(90deg,var(--accent),#00d4ff);color:var(--accent-2);padding:0.75rem 0.9rem;border-radius:10px;border:none;font-weight:700}
.message{margin-top:0.75rem;color:var(--accent)}

/* Story / Viewer */
.viewer-wrap{display:flex;flex-direction:column;gap:0.75rem}
.viewer{background:var(--glass);border-radius:12px;overflow:hidden;border:1px solid rgba(16,24,40,0.06);display:flex;flex-direction:column;height:70vh}
.viewer-toolbar{display:flex;align-items:center;justify-content:space-between;padding:0.5rem 0.75rem;background:linear-gradient(180deg,rgba(255,255,255,0.4),rgba(255,255,255,0.25));border-bottom:1px solid rgba(16,24,40,0.03)}
.viewer-canvas{flex:1;min-height:60vh}
.viewer-iframe{width:100%;height:100%;border:0}

/* Activities list */
.activities{display:flex;flex-wrap:wrap;gap:0.75rem}
.activity-card{flex:1 1 220px;padding:0.75rem;border-radius:10px;background:linear-gradient(180deg,rgba(255,255,255,0.9),rgba(255,255,255,0.75));border:1px solid rgba(16,24,40,0.08);transition:transform 160ms ease,box-shadow 160ms ease}
.activity-card:hover{transform:translateY(-6px);box-shadow:0 20px 50px rgba(16,24,40,0.10)}
/* Activity grid for index after login */
.activity-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:0.75rem;margin-top:0.6rem}
.activity-btn{display:flex;flex-direction:column;align-items:center;gap:0.5rem;padding:0.9rem;border-radius:12px;background:linear-gradient(135deg,rgba(255,255,255,0.94),rgba(240,246,255,0.94));border:1px solid rgba(124,92,255,0.12);text-decoration:none;color:inherit;font-weight:700}
.activity-btn .icon{width:56px;height:56px;border-radius:12px;background:linear-gradient(135deg,var(--accent),#00d4ff);display:flex;align-items:center;justify-content:center;color:var(--accent-2);box-shadow:0 12px 40px rgba(124,92,255,0.14)}
.activity-btn:hover{transform:translateY(-6px);box-shadow:0 28px 70px rgba(16,24,40,0.14)}

/* Session bar and floating profile button */
.session-bar{margin-left:1rem;display:flex;align-items:center;gap:0.6rem}
.session-welcome{color:var(--muted);font-weight:600}
.session-link{padding:0.35rem 0.6rem;border-radius:8px;background:transparent;border:1px solid rgba(16,24,40,0.08);text-decoration:none;color:inherit}
.go-profile-btn{position:fixed;right:18px;bottom:18px;background:linear-gradient(90deg,var(--accent),#00d4ff);color:var(--accent-2);padding:0.6rem 0.9rem;border-radius:12px;text-decoration:none;box-shadow:0 12px 30px rgba(16,24,40,0.12)}

.session-stats{font-size:0.9rem;color:var(--muted);padding:0.25rem 0.5rem;border-radius:8px;border:1px solid rgba(16,24,40,0.06);background:transparent;margin-right:0.5rem}

/* Color swatches and canvas tools */
.color-swatch{width:30px;height:30px;border-radius:8px;border:2px solid rgba(255,255,255,0.6);cursor:pointer}
.color-swatch:focus{outline:2px solid rgba(0,0,0,0.08)}
.tool-btn{padding:0.4rem 0.6rem;border-radius:8px;border:1px solid rgba(16,24,40,0.06);background:transparent;cursor:pointer}

/* ensure canvas container uses available height */
.viewer-canvas{display:flex;align-items:center;justify-content:center}

/* Responsive */
@media(min-width:900px){.hero{grid-template-columns:1fr 420px}.viewer-canvas{min-height:72vh}}
@media(max-width:520px){.container{padding:0.75rem}.logo{width:44px;height:44px}.viewer-canvas{min-height:50vh}}

/* Neon Futurista theme (light neon on dark) */
.theme-neon {
  --bg: radial-gradient(800px 300px at 10% 10%, rgba(0,255,230,0.06), transparent 15%), radial-gradient(600px 200px at 90% 90%, rgba(179,99,255,0.04), transparent 18%), #071427;
  --card: linear-gradient(135deg, rgba(8,16,32,0.75), rgba(4,8,18,0.85));
  --accent: #00fff7;
  --accent-2: #071427;
  --muted: #9feef7;
  --glass: rgba(2,8,20,0.55);
  --shadow: 0 12px 40px rgba(0,255,200,0.06);
}

/* Theme toggle button (when not placed inside header) */
.theme-toggle{position:relative;display:inline-flex;align-items:center;gap:0.5rem;padding:0.35rem 0.6rem;border-radius:8px;border:none;cursor:pointer;background:linear-gradient(90deg,var(--accent),#b98bff);color:var(--accent-2);box-shadow:0 6px 18px rgba(0,0,0,0.25);font-weight:600}
.theme-toggle.fixed{position:fixed;top:12px;right:12px;z-index:9999}

/* Make some elements more visible on dark theme */
.theme-neon body, .theme-neon .container{color:#dffcff}
.theme-neon h1, .theme-neon h2 { color: #eaffff !important }
.theme-neon .brand .muted { color: #9feef7 }

/* When the page background is very light/white, force readable light-cyan text color */
.text-light-on-white body, html.text-light-on-white .container, html.text-light-on-white p, html.text-light-on-white label, html.text-light-on-white input, html.text-light-on-white textarea, html.text-light-on-white select { color: #dffcff }
html.text-light-on-white h1, html.text-light-on-white h2, html.text-light-on-white .muted, html.text-light-on-white .session-welcome, html.text-light-on-white .session-stats, html.text-light-on-white .activity-btn, html.text-light-on-white .activity-card { color: #dffcff !important }
html.text-light-on-white .activity-btn .icon{ color: #071427 !important }
html.text-light-on-white input::placeholder{ color: rgba(223,255,255,0.75) }
/* Strong header overrides to ensure readability */
html.text-light-on-white .brand h1, html.text-light-on-white .brand .muted, html.text-light-on-white .brand .logo { color: #dffcff !important }
html.text-light-on-white .session-link, html.text-light-on-white .session-welcome { color: #dffcff !important }

/* Additional Neon header fixes: ensure header readable on neon theme */
.theme-neon .brand{ background: rgba(255,255,255,0.02); padding:0.45rem 0.6rem; border-radius:10px; align-items:center }
.theme-neon .brand h1, .theme-neon .brand .muted{ color:#dffcff !important; text-shadow:0 1px 0 rgba(0,0,0,0.6) }
.theme-neon .logo{ color:var(--accent-2) !important; box-shadow:0 8px 24px rgba(0,255,220,0.04) }
.theme-neon .session-bar{ background: rgba(0,0,0,0.28); padding:0.25rem 0.5rem; border-radius:8px }
.theme-neon .session-link{ background: rgba(255,255,255,0.02); border:1px solid rgba(0,255,220,0.08); color:#dffcff !important }
.theme-neon .session-welcome{ color:#dffcff !important }
.theme-neon .activity-btn{background:linear-gradient(135deg,rgba(255,255,255,0.02),rgba(255,255,255,0.01));border:1px solid rgba(0,255,220,0.06)}
.theme-neon .activity-btn .icon{background:linear-gradient(135deg,var(--accent),#b98bff);box-shadow:0 8px 30px rgba(0,255,220,0.08);color:var(--accent-2)}

/* Neon form controls and buttons contrast adjustments */
.theme-neon input, .theme-neon textarea, .theme-neon select {background: rgba(255,255,255,0.03); color: #eaffff; border:1px solid rgba(0,255,220,0.08); padding:0.6rem; border-radius:8px}
.theme-neon .register input[type=text], .theme-neon .register input[type=email]{background: rgba(255,255,255,0.02); border:1px solid rgba(0,255,220,0.06); color:#eaffff}
.theme-neon .primary{background:linear-gradient(90deg,var(--accent),#b98bff);color:var(--accent-2);box-shadow:0 8px 24px rgba(124,92,255,0.06)}
.theme-neon .tool-btn{background:transparent;border:1px solid rgba(0,255,220,0.06);color:#dffcff}
.theme-neon .session-bar, .theme-neon .session-welcome, .theme-neon .session-stats, .theme-neon .session-link{color:#dffcff}
.theme-neon .muted{color:#9feef7}
.theme-neon table, .theme-neon .card{background:var(--card)}
.theme-neon .activity-card, .theme-neon .card{border:1px solid rgba(0,255,220,0.08)}
.theme-neon input::placeholder {color: rgba(223,255,255,0.6)}

/* Strongest header overrides for Neon: solid dark backdrop and forced text colors */
html.theme-neon .brand {
  background: rgba(4,8,18,0.98) !important;
  padding: 0.6rem 0.8rem !important;
  border-radius:12px !important;
  box-shadow: 0 6px 30px rgba(0,0,0,0.6) inset, 0 8px 40px rgba(0,0,0,0.6) !important;
  border: 1px solid rgba(255,255,255,0.02) !important;
}
html.theme-neon .brand h1,
html.theme-neon .brand .muted,
html.theme-neon .brand .logo,
html.theme-neon .brand a,
html.theme-neon .brand .session-welcome,
html.theme-neon .brand .session-link {
  color: #dffcff !important;
  opacity: 1 !important;
  text-shadow: 0 2px 8px rgba(0,0,0,0.7) !important;
}
html.theme-neon .brand a { text-decoration:underline; text-underline-offset:4px }
/* Ensure header links and small text are fully opaque and readable */
html.theme-neon .brand .muted { color: #c9fff7 !important; font-weight:600 }
/* If header is placed inside a translucent container, force a solid backdrop for readability */
html.theme-neon .brand:before{
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(4,8,18,0.92);
  z-index: -1;
  border-radius:12px;
}

/* --- Neon presence: glow, motion and shimmer --- */
/* ensure brand positioned for pseudo-elements */
.theme-neon .brand{ position:relative; overflow:visible }

/* animated subtle background orbs */
.theme-neon body::before,
.theme-neon body::after{
  content:'';
  position:fixed;
  pointer-events:none;
  z-index:0;
  mix-blend-mode:screen;
}
.theme-neon body::before{
  width:520px;height:520px;right:-120px;top:-80px;border-radius:50%;background:radial-gradient(circle at 30% 30%, rgba(0,255,220,0.06), transparent 30%), radial-gradient(circle at 70% 70%, rgba(185,139,255,0.04), transparent 35%);
  filter:blur(30px);opacity:0.9;transform:scale(1);animation:float-slow 12s linear infinite;
}
.theme-neon body::after{
  width:420px;height:420px;left:-100px;bottom:-60px;border-radius:50%;background:radial-gradient(circle at 40% 40%, rgba(0,160,255,0.04), transparent 30%);
  filter:blur(28px);opacity:0.8;animation:float-slow 18s linear infinite reverse;
}

@keyframes float-slow{0%{transform:translateY(0) scale(1)}50%{transform:translateY(-18px) scale(1.02)}100%{transform:translateY(0) scale(1)}}

/* logo pulse + glow */
@keyframes neon-pulse{0%{transform:translateY(0) scale(1);filter:drop-shadow(0 0 6px rgba(0,255,220,0.08))}50%{transform:translateY(-3px) scale(1.04);filter:drop-shadow(0 0 28px rgba(0,255,220,0.18))}100%{transform:translateY(0) scale(1);filter:drop-shadow(0 0 6px rgba(0,255,220,0.08))}}
.theme-neon .logo{animation:neon-pulse 3.6s ease-in-out infinite;border-radius:14px;background:linear-gradient(135deg,#00fff7 0%, #b98bff 50%, #7c5cff 100%);box-shadow:0 8px 40px rgba(0,255,220,0.08),0 0 80px rgba(185,139,255,0.06);color:var(--accent-2) !important}

/* shimmering header underline */
.theme-neon .brand h1{position:relative;z-index:2}
.theme-neon .brand h1::after{content:'';position:absolute;left:0;right:0;bottom:-8px;height:3px;border-radius:4px;background:linear-gradient(90deg, rgba(0,255,220,0.9), rgba(185,139,255,0.9), rgba(124,92,255,0.9));box-shadow:0 6px 24px rgba(0,255,220,0.12);opacity:0.95;transform:translateY(0);animation:shimmer 4.5s linear infinite}
@keyframes shimmer{0%{transform:translateX(-110%)}50%{transform:translateX(10%)}100%{transform:translateX(110%)}}

/* hover glows for interactive elements */
.theme-neon .activity-btn:hover{box-shadow:0 20px 60px rgba(0,255,220,0.06),0 0 40px rgba(185,139,255,0.04);transform:translateY(-8px) scale(1.02)}
.theme-neon .session-link:hover{box-shadow:0 8px 30px rgba(0,255,220,0.08);border-color:rgba(0,255,220,0.12)}

/* accent animated gradient for primary buttons */
.theme-neon .primary{background:linear-gradient(90deg,#00fff7,#b98bff);background-size:200% 100%;animation:accent-shift 6s ease-in-out infinite}
@keyframes accent-shift{0%{background-position:0% 50%}50%{background-position:100% 50%}100%{background-position:0% 50%}}

/* subtle glass blur on header area to lift it */
.theme-neon .brand{backdrop-filter: blur(6px);-webkit-backdrop-filter: blur(6px)}

/* ensure session-bar items stand out */
.theme-neon .session-bar .session-stats{background:linear-gradient(90deg, rgba(255,255,255,0.02), rgba(255,255,255,0.01));border:1px solid rgba(0,255,220,0.06);box-shadow:0 6px 18px rgba(0,0,0,0.45) inset}

/* Pastel theme presence: soft orbs, gentle motion and glow */
/* Targets explicit .theme-pastel or default body when Neon is not active */
.theme-pastel, body:not(.theme-neon) {
  --pastel-orb-1: rgba(124,92,255,0.06);
  --pastel-orb-2: rgba(0,212,255,0.05);
  --pastel-orb-3: rgba(255,220,235,0.05);
}

/* floating pastel shapes */
.theme-pastel body::before, body:not(.theme-neon)::before,
.theme-pastel body::after, body:not(.theme-neon)::after{
  content: '';
  position: fixed;
  pointer-events: none;
  z-index: 0;
  mix-blend-mode: screen;
}
.theme-pastel body::before, body:not(.theme-neon)::before{
  width:460px;height:460px;left:-120px;top:-60px;border-radius:50%;background:radial-gradient(circle at 30% 30%, var(--pastel-orb-1), transparent 30%), radial-gradient(circle at 70% 70%, var(--pastel-orb-2), transparent 36%);filter:blur(22px);opacity:0.95;animation:pastel-float 16s ease-in-out infinite;
}
.theme-pastel body::after, body:not(.theme-neon)::after{
  width:380px;height:380px;right:-100px;bottom:-40px;border-radius:50%;background:radial-gradient(circle at 40% 40%, var(--pastel-orb-3), transparent 30%);filter:blur(20px);opacity:0.9;animation:pastel-float 20s ease-in-out infinite reverse;
}
@keyframes pastel-float{0%{transform:translateY(0) scale(1)}50%{transform:translateY(-16px) scale(1.02)}100%{transform:translateY(0) scale(1)}}

/* soft logo glow and lift */
.theme-pastel .logo, body:not(.theme-neon) .logo{transition:transform 420ms ease, box-shadow 420ms ease;box-shadow:0 8px 30px rgba(124,92,255,0.06)}
.theme-pastel .logo:hover, body:not(.theme-neon) .logo:hover{transform:translateY(-4px) scale(1.03);box-shadow:0 18px 60px rgba(124,92,255,0.10),0 0 40px rgba(0,212,255,0.06)}

/* subtle shimmer underline for titles */
.theme-pastel .brand h1, body:not(.theme-neon) .brand h1{position:relative}
.theme-pastel .brand h1::after, body:not(.theme-neon) .brand h1::after{content:'';position:absolute;left:0;right:0;bottom:-6px;height:2px;border-radius:3px;background:linear-gradient(90deg, rgba(124,92,255,0.6), rgba(0,212,255,0.6));opacity:0.9;transform:translateX(-100%);animation:pastel-shimmer 6s linear infinite}
@keyframes pastel-shimmer{0%{transform:translateX(-120%)}50%{transform:translateX(10%)}100%{transform:translateX(120%)}}

/* gentle accent animation for primary buttons */
.theme-pastel .primary, body:not(.theme-neon) .primary{background:linear-gradient(90deg,#7c5cff,#00d4ff);background-size:200% 100%;animation:pastel-accent 8s ease-in-out infinite;color:var(--accent-2)}
@keyframes pastel-accent{0%{background-position:0% 50%}50%{background-position:100% 50%}100%{background-position:0% 50%}}

/* hover lifts for activity cards */
.theme-pastel .activity-card:hover, body:not(.theme-neon) .activity-card:hover{transform:translateY(-8px);box-shadow:0 20px 50px rgba(16,24,40,0.08)}

/* subtle glass on header to separate from background */
.theme-pastel .brand, body:not(.theme-neon) .brand{background:linear-gradient(180deg, rgba(255,255,255,0.72), rgba(248,255,246,0.65));border:1px solid rgba(124,92,255,0.10);backdrop-filter: blur(4px);-webkit-backdrop-filter: blur(4px);padding:0.5rem 0.6rem;border-radius:12px}

/* ensure readable pastel text tones */
.theme-pastel .brand h1, body:not(.theme-neon) .brand h1{color:#0f1724}
.theme-pastel .brand .muted, body:not(.theme-neon) .brand .muted{color:#406070;font-weight:600}