/* =====================================================
   SEVI — shared styles (user site + admin panel)
   Night-listening palette: deep indigo ground, marigold accent,
   kolam dot-grid covers. Dark-first, with a light theme.
   ===================================================== */
:root{
  --bg:#12131f; --surface:#1c1e2e; --surface-2:#262940; --line:#33364f;
  --fg:#efe9df; --muted:#9d9bb2; --accent:#f2a541; --accent-ink:#1b1306;
  --ok:#5fc48a; --danger:#e86b5f;
  --shadow:0 18px 40px -18px rgba(0,0,0,.7);
  --f-display:"Noto Serif Tamil", Georgia, serif;
  --f-ui:"Catamaran", "Segoe UI", system-ui, sans-serif;
  color-scheme:dark;
}
@media (prefers-color-scheme: light){:root:not([data-theme="dark"]){
  --bg:#eceef6; --surface:#ffffff; --surface-2:#e1e4f0; --line:#cfd3e4;
  --fg:#1a1c2b; --muted:#5f6279; --accent:#c26a00; --accent-ink:#fff8ee;
  --ok:#1f8a4c; --danger:#c23b2e;
  --shadow:0 18px 40px -22px rgba(30,34,70,.45); color-scheme:light;}}
:root[data-theme="light"]{
  --bg:#eceef6; --surface:#ffffff; --surface-2:#e1e4f0; --line:#cfd3e4;
  --fg:#1a1c2b; --muted:#5f6279; --accent:#c26a00; --accent-ink:#fff8ee;
  --ok:#1f8a4c; --danger:#c23b2e;
  --shadow:0 18px 40px -22px rgba(30,34,70,.45); color-scheme:light;}

*{box-sizing:border-box}
html,body{margin:0}
body{background:var(--bg);color:var(--fg);font-family:var(--f-ui);font-size:16px;line-height:1.5;-webkit-tap-highlight-color:transparent;min-height:100vh}
[hidden]{display:none!important}
img{max-width:100%}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
button:disabled{opacity:.5;cursor:not-allowed}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:8px}
.wrap{max-width:1080px;margin:0 auto;padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px))}

/* brand */
.brand{display:flex;align-items:center;gap:10px}
.brand-mark{width:38px;height:38px;border-radius:12px;background:var(--accent);color:var(--accent-ink);display:grid;place-items:center;font-family:var(--f-display);font-weight:800;font-size:20px;line-height:1;flex:none}
.brand b{display:block;font-size:19px;font-weight:800;letter-spacing:-.01em;line-height:1.1}
.brand small{color:var(--muted);font-size:12px;letter-spacing:.06em;text-transform:uppercase}

.brand-mark.has-logo{display:block;background:none;width:auto;height:44px;max-width:160px;border-radius:10px;overflow:hidden;flex:none}
.brand-mark.has-logo img{display:block;height:44px;width:auto;max-width:160px;object-fit:contain}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:10px 18px;border-radius:999px;font-weight:700;font-size:15px;white-space:nowrap}
.btn-accent{background:var(--accent);color:var(--accent-ink)}
.btn-ghost{background:var(--surface-2)}
.btn-danger{background:color-mix(in srgb,var(--danger) 18%,transparent);color:var(--danger)}
.btn-block{width:100%;padding:13px 18px}
.btn svg{width:18px;height:18px}
.icon{width:44px;height:44px;display:grid;place-items:center;border-radius:50%;flex:none}
.icon svg{width:24px;height:24px}
.icon:hover{background:var(--surface-2)}

/* forms */
label{display:flex;flex-direction:column;gap:6px;font-size:13px;font-weight:600;color:var(--muted)}
input[type=text],input[type=email],input[type=password],input[type=url],input[type=search],select,textarea{padding:12px 14px;border-radius:12px;border:1px solid var(--line);background:var(--bg);font-size:16px;width:100%}
textarea{resize:vertical;min-height:90px;line-height:1.5}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--accent)}
.msg{font-size:14px;margin:0;padding:10px 12px;border-radius:10px}
.msg.err{background:color-mix(in srgb,var(--danger) 14%,transparent);color:var(--danger)}
.msg.ok{background:color-mix(in srgb,var(--ok) 14%,transparent);color:var(--ok)}

h2.label{font-size:13px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);margin:28px 0 12px}

/* progress */
.prog{height:5px;border-radius:5px;background:var(--surface-2);overflow:hidden}
.prog i{display:block;height:100%;background:var(--accent);border-radius:5px}

/* generated covers: kolam dot grid + Tamil title, or uploaded image */
.cover{position:relative;aspect-ratio:3/4;width:100%;max-width:100%;border-radius:14px;overflow:hidden;background:linear-gradient(160deg,hsl(var(--h,20) 55% 34%),hsl(calc(var(--h,20) + 40) 60% 16%));color:#fff6e6;box-shadow:var(--shadow);container-type:inline-size;transition:transform .2s}
.cover::before{content:"";position:absolute;inset:0;background-image:radial-gradient(circle,rgba(255,240,210,.32) 1.4px,transparent 1.8px);background-size:16px 16px;mask-image:linear-gradient(180deg,#000 0%,transparent 62%);-webkit-mask-image:linear-gradient(180deg,#000 0%,transparent 62%)}
.cover::after{content:"";position:absolute;width:70%;aspect-ratio:1;left:15%;top:10%;border:1.5px solid rgba(255,240,210,.35);border-radius:50%;box-shadow:0 0 0 10px rgba(255,240,210,.06)}
.cover img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:2}
.cover .ct{position:absolute;inset:auto 10px 12px;z-index:1}
.cover .ct strong{display:block;font-family:var(--f-display);font-weight:800;font-size:13cqw;line-height:1.35;text-wrap:balance}
.cover .ct em{font-style:normal;font-size:6.5cqw;letter-spacing:.1em;text-transform:uppercase;opacity:.75}
.badge{position:absolute;top:8px;right:8px;z-index:3;font-size:10px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;background:rgba(0,0,0,.5);color:#fff;padding:3px 8px;border-radius:999px}

/* auth screen */
.auth{min-height:100vh;display:grid;place-items:center;padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px));padding-block:32px;background:
  radial-gradient(circle at 20% 10%,color-mix(in srgb,var(--accent) 16%,transparent),transparent 45%),
  radial-gradient(circle,color-mix(in srgb,var(--fg) 10%,transparent) 1.2px,transparent 1.6px) 0 0/22px 22px,var(--bg)}
.auth-card{width:100%;max-width:400px;background:var(--surface);border-radius:24px;padding:28px 22px;box-shadow:var(--shadow);display:flex;flex-direction:column;gap:16px}
.auth-card h1{margin:4px 0 0;font-family:var(--f-display);font-size:26px;line-height:1.3;text-wrap:balance}
.auth-card p.sub{margin:0;color:var(--muted);font-size:15px}
.tabs{display:grid;grid-template-columns:1fr 1fr;background:var(--bg);border-radius:999px;padding:4px}
.tabs button{padding:9px;border-radius:999px;font-weight:700;color:var(--muted)}
.tabs button[aria-selected="true"]{background:var(--surface-2);color:var(--fg)}
.auth form{display:flex;flex-direction:column;gap:12px}
.link{color:var(--accent);font-weight:600;font-size:14px;text-decoration:none;align-self:flex-start;padding:0}
.spin{width:18px;height:18px;border:2.5px solid currentColor;border-right-color:transparent;border-radius:50%;animation:sp .8s linear infinite;display:inline-block}
@keyframes sp{to{transform:rotate(360deg)}}

/* toast */
.toast{position:fixed;left:50%;bottom:calc(100px + env(safe-area-inset-bottom,0px));transform:translateX(-50%);background:var(--fg);color:var(--bg);padding:9px 16px;border-radius:999px;font-weight:600;font-size:14px;z-index:90;max-width:calc(100% - 32px);text-align:center}

.empty{color:var(--muted);font-size:14px;padding:24px;border:1.5px dashed var(--line);border-radius:16px;text-align:center}
.setup{max-width:520px;margin:15vh auto;padding:24px;background:var(--surface);border-radius:18px}
.setup code{background:var(--surface-2);padding:2px 6px;border-radius:6px}

@media (prefers-reduced-motion:reduce){*{transition:none!important;animation-duration:0s!important}}