/* =============================================================================
   Álbum Twitch — Sistema de diseño (UI kit reutilizable)
   -----------------------------------------------------------------------------
   Lenguaje visual: panel de administración indigo/violeta con barra lateral,
   tarjetas redondeadas y sombras suaves. Todo se controla con variables CSS
   (tokens) para poder reutilizar estos componentes en cualquier página.

   Uso rápido:
     <link rel="stylesheet" href="ui.css">
   Ver el catálogo completo de componentes en  ui.html
   ========================================================================== */

/* ----------------------------- 1. Tokens ---------------------------------- */
:root{
  /* Marca */
  --brand:#6c5ce7;          /* indigo primario (botones, activo)            */
  --brand-600:#5b4bd6;      /* hover / estados presionados                  */
  --brand-700:#4b3bc0;
  --brand-050:#efecfe;      /* fondo suave / chips                          */
  --brand-100:#e2ddfb;
  --violet:#8b5cf6;         /* acento decorativo (dots, blobs)              */

  /* Neutros */
  --ink:#1f1b2e;            /* títulos / texto fuerte                       */
  --body:#3a3547;          /* texto normal                                 */
  --muted:#8b8797;         /* texto secundario / labels                    */
  --bg:#f4f3fb;            /* fondo de la app                              */
  --surface:#ffffff;       /* tarjetas y paneles                           */
  --surface-2:#f7f6fd;     /* inputs / zonas hundidas                      */
  --line:#eceaf4;          /* bordes                                        */

  /* Estados */
  --ok:#16a34a; --ok-050:#e9f8ef;
  --danger:#e23d5a; --danger-050:#fdecef;
  --warn:#e0a10b;

  /* Radios y sombras */
  --r-sm:10px; --r:14px; --r-lg:20px; --r-pill:999px;
  --sh-sm:0 2px 6px rgba(31,27,46,.06);
  --sh:0 10px 30px rgba(31,27,46,.08);
  --sh-brand:0 12px 26px rgba(108,92,231,.35);

  --sidebar-w:264px;
  --font:"Segoe UI",system-ui,-apple-system,"Helvetica Neue",Arial,sans-serif;
}

/* ----------------------------- 2. Base ------------------------------------ */
*{box-sizing:border-box;margin:0;padding:0}
html,body{height:100%}
body{
  font-family:var(--font);
  color:var(--body);
  background:var(--bg);
  line-height:1.45;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{color:var(--ink);line-height:1.2}
a{color:var(--brand);text-decoration:none}
a:hover{color:var(--brand-600)}
::selection{background:var(--brand-100)}

/* ----------------------------- 3. Layout shell ---------------------------- */
/* Estructura general: barra lateral fija + área de contenido con scroll.     */
.app{display:grid;grid-template-columns:var(--sidebar-w) minmax(0,1fr);min-height:100vh}
.main{min-width:0;display:flex;flex-direction:column}
.content{padding:26px clamp(18px,3vw,38px) 48px;max-width:1080px;width:100%;margin:0 auto}

/* ----------------------------- 4. Sidebar --------------------------------- */
.sidebar{
  background:var(--surface);
  border-right:1px solid var(--line);
  padding:22px 16px;
  display:flex;flex-direction:column;gap:6px;
  position:sticky;top:0;height:100vh;overflow-y:auto;
}
.sidebar__brand{display:flex;align-items:center;gap:10px;padding:4px 8px 14px;font-weight:800;color:var(--ink);font-size:17px}
.sidebar__brand .logo{width:34px;height:34px;border-radius:10px;background:linear-gradient(150deg,var(--brand),var(--violet));display:flex;align-items:center;justify-content:center;color:#fff;font-size:18px;box-shadow:var(--sh-brand)}

.profile{display:flex;align-items:center;gap:12px;padding:12px 10px;border-radius:var(--r);background:var(--surface);margin-bottom:8px}
.profile .avatar{flex:0 0 auto}
.profile .who{min-width:0}
.profile .who .nm{font-weight:800;color:var(--ink);font-size:15px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.profile .who .role{font-size:12px;color:var(--muted)}

.nav-label{font-size:11px;font-weight:800;letter-spacing:.12em;color:var(--muted);text-transform:uppercase;padding:16px 12px 6px}
.nav{display:flex;flex-direction:column;gap:2px}
.nav__item{
  display:flex;align-items:center;gap:12px;
  padding:11px 12px;border-radius:12px;
  color:var(--body);font-weight:600;font-size:14.5px;
  cursor:pointer;border:0;background:transparent;width:100%;text-align:left;
  transition:background .15s,color .15s;
}
.nav__item .ic{width:20px;text-align:center;font-size:16px;opacity:.85}
.nav__item .txt{flex:1;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.nav__item:hover{background:var(--brand-050);color:var(--brand-700)}
.nav__item.active{background:var(--brand);color:#fff;box-shadow:var(--sh-brand)}
.nav__item.active .ic{opacity:1}
.nav__item .count{
  background:var(--brand-050);color:var(--brand-700);
  font-size:12px;font-weight:800;border-radius:var(--r-pill);
  min-width:24px;height:22px;padding:0 7px;display:flex;align-items:center;justify-content:center;
}
.nav__item.active .count{background:rgba(255,255,255,.25);color:#fff}
.nav__item:disabled{opacity:.4;cursor:not-allowed;pointer-events:none}
.nav__link{color:var(--body)}
.nav__link:hover{background:var(--brand-050);color:var(--brand-700)}

/* ----------------------------- 5. Topbar ---------------------------------- */
.topbar{
  display:flex;align-items:center;gap:12px;flex-wrap:wrap;
  padding:16px clamp(18px,3vw,38px);
  background:var(--surface);border-bottom:1px solid var(--line);
  position:sticky;top:0;z-index:20;
}
.topbar h1{font-size:20px;font-weight:800}
.topbar .spacer{flex:1}

/* ----------------------------- 6. Cards ----------------------------------- */
.card{
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-lg);padding:22px;box-shadow:var(--sh-sm);
  margin-bottom:20px;
}
.card__title{font-size:16px;font-weight:800;color:var(--ink);margin-bottom:4px;display:flex;align-items:center;gap:9px}
.card__sub{font-size:13px;color:var(--muted);margin-bottom:16px}
.card__title + .card__sub{margin-top:2px}

/* ----------------------------- 7. Hero ------------------------------------ */
/* Tarjeta de bienvenida con degradado (como "Start your journey!").          */
.hero{
  display:grid;grid-template-columns:200px 1fr;gap:0;overflow:hidden;
  border-radius:var(--r-lg);box-shadow:var(--sh);margin-bottom:24px;background:var(--surface);
}
.hero__art{background:linear-gradient(160deg,var(--brand),var(--violet));display:flex;align-items:center;justify-content:center;font-size:74px;color:#fff;position:relative}
.hero__art:after{content:"";position:absolute;inset:0;background:radial-gradient(120px 80px at 70% 20%,rgba(255,255,255,.25),transparent 60%)}
.hero__body{padding:26px 28px}
.hero__body h2{font-size:24px;font-weight:800;margin-bottom:8px}
.hero__body p{color:var(--muted);font-size:14px;max-width:52ch;margin-bottom:18px}
@media(max-width:640px){.hero{grid-template-columns:1fr}.hero__art{min-height:120px}}

/* ----------------------------- 8. Botones --------------------------------- */
.btn{
  font:inherit;font-weight:700;cursor:pointer;
  border:1px solid transparent;border-radius:12px;
  padding:11px 18px;display:inline-flex;align-items:center;gap:8px;justify-content:center;
  background:var(--surface-2);color:var(--brand-700);
  transition:transform .12s,box-shadow .15s,background .15s,color .15s;
  text-decoration:none;line-height:1;
}
.btn:hover{transform:translateY(-1px)}
.btn:active{transform:translateY(0)}
.btn--primary{background:var(--brand);color:#fff;box-shadow:var(--sh-brand)}
.btn--primary:hover{background:var(--brand-600);color:#fff}
.btn--ghost{background:transparent;border-color:var(--line);color:var(--body)}
.btn--ghost:hover{background:var(--brand-050);color:var(--brand-700)}
.btn--ok{background:var(--ok);color:#fff}
.btn--danger{background:var(--danger);color:#fff}
.btn--danger.is-soft{background:var(--danger-050);color:var(--danger)}
.btn--sm{padding:7px 12px;font-size:13px;border-radius:10px}
.btn--lg{padding:14px 26px;font-size:16px}
.btn--block{width:100%}
.btn[disabled]{opacity:.5;cursor:default;transform:none;box-shadow:none}

/* ----------------------------- 9. Formularios ----------------------------- */
.field{margin-bottom:14px}
.field > label,.label{display:block;font-size:12.5px;font-weight:700;color:var(--muted);margin-bottom:6px}
.input,.select,.textarea{
  font:inherit;width:100%;color:var(--ink);
  background:var(--surface-2);border:1px solid var(--line);
  border-radius:12px;padding:12px 14px;transition:border-color .15s,box-shadow .15s,background .15s;
}
.input::placeholder,.textarea::placeholder{color:#a7a2b4}
.input:focus,.select:focus,.textarea:focus{outline:0;border-color:var(--brand);background:#fff;box-shadow:0 0 0 4px rgba(108,92,231,.14)}
.textarea{resize:vertical;min-height:120px;font-family:Consolas,"SFMono-Regular",monospace;font-size:13px}
.select{appearance:none;background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%238b8797' stroke-width='3' stroke-linecap='round'><path d='M6 9l6 6 6-6'/></svg>");background-repeat:no-repeat;background-position:right 14px center;padding-right:38px}
.grid-fields{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:14px}

/* Campo con prefijo fijo (ej. dominio antes del slug) */
.input-group{display:flex;align-items:stretch;border:1px solid var(--line);border-radius:12px;background:var(--surface-2);overflow:hidden;transition:border-color .15s,box-shadow .15s}
.input-group:focus-within{border-color:var(--brand);background:#fff;box-shadow:0 0 0 4px rgba(108,92,231,.14)}
.input-group__prefix{display:flex;align-items:center;padding:0 12px;background:var(--brand-050);color:var(--brand-700);font-weight:700;font-size:13.5px;white-space:nowrap;border-right:1px solid var(--line)}
.input-group .input{flex:1;min-width:0;width:auto;border:0;border-radius:0;background:transparent;box-shadow:none!important}
.input-group .input:focus{background:transparent}
.input-group .ig-btn{border:0;border-left:1px solid var(--line);background:var(--brand-050);color:var(--brand-700);padding:0 13px;cursor:pointer;font-size:15px;display:flex;align-items:center;transition:background .15s}
.input-group .ig-btn:hover{background:var(--brand-100)}
.input-group .ig-btn:active{transform:scale(.94)}
.hint{font-size:12px;color:var(--muted);margin-top:6px}
.status{font-size:13px;color:var(--muted);font-weight:600}
.bar{display:flex;gap:10px;flex-wrap:wrap;align-items:center;margin-top:14px}

/* Checkbox (estilo "Remember me") */
.check{display:inline-flex;align-items:center;gap:10px;cursor:pointer;font-size:14px;color:var(--body);user-select:none}
.check input{appearance:none;width:22px;height:22px;border-radius:7px;border:2px solid var(--line);background:var(--surface-2);cursor:pointer;position:relative;flex:0 0 auto;transition:.15s}
.check input:checked{background:var(--brand);border-color:var(--brand)}
.check input:checked:after{content:"";position:absolute;left:6px;top:2px;width:6px;height:11px;border:solid #fff;border-width:0 2.5px 2.5px 0;transform:rotate(45deg)}

/* ----------------------------- 10. Badges / pills ------------------------- */
.badge{display:inline-flex;align-items:center;gap:5px;font-size:12px;font-weight:800;border-radius:var(--r-pill);padding:3px 10px;background:var(--brand-050);color:var(--brand-700)}
.badge--ok{background:var(--ok-050);color:var(--ok)}
.badge--danger{background:var(--danger-050);color:var(--danger)}
.tag{display:inline-block;font-size:11px;font-weight:800;color:var(--muted)}

/* ----------------------------- 11. Avatar --------------------------------- */
.avatar{width:46px;height:46px;border-radius:50%;background:linear-gradient(160deg,var(--brand),var(--violet));color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:18px;overflow:hidden;flex:0 0 auto;box-shadow:var(--sh-sm)}
.avatar img{width:100%;height:100%;object-fit:cover}
.avatar--sm{width:34px;height:34px;font-size:14px}
.avatar--lg{width:60px;height:60px;font-size:24px}

/* ----------------------------- 12. Dropzone ------------------------------- */
.dropzone{border:2.5px dashed var(--brand);border-radius:var(--r);background:var(--brand-050);padding:26px 18px;text-align:center;transition:.15s}
.dropzone.drag{background:var(--brand-100);border-color:var(--brand-600);box-shadow:0 0 0 4px rgba(108,92,231,.16) inset}
.dropzone .dz-icon{font-size:40px;line-height:1;color:var(--brand)}
.dropzone .dz-title{font-size:20px;font-weight:800;color:var(--ink);margin-top:4px}
.dropzone .dz-sub{font-size:13px;color:var(--muted);margin:6px auto 16px;max-width:460px}

/* ----------------------------- 13. Login (Sign in) ------------------------ */
/* Pantalla de acceso centrada con blobs decorativos, estilo tarjeta "Sign in".*/
.login-screen{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:20px;position:relative;overflow:hidden;
  background:radial-gradient(900px 500px at 12% -8%,#e7e2ff,transparent 60%),radial-gradient(760px 520px at 108% 8%,#efe7ff,transparent 55%),var(--bg)}
.login-screen:before,.login-screen:after{content:"";position:absolute;border-radius:44% 56% 62% 38%/48% 42% 58% 52%;background:linear-gradient(160deg,var(--brand),var(--violet));opacity:.16;filter:blur(2px);z-index:0}
.login-screen:before{width:420px;height:420px;left:-120px;bottom:-120px}
.login-screen:after{width:320px;height:320px;right:-100px;top:-90px}
.login-card{position:relative;z-index:1;background:var(--surface);border-radius:24px;box-shadow:0 24px 60px rgba(31,27,46,.18);padding:34px 30px;width:100%;max-width:400px}
.login-card .brand-row{display:flex;align-items:center;justify-content:center;gap:10px;margin-bottom:6px}
.login-card .brand-row .logo{width:40px;height:40px;border-radius:12px;background:linear-gradient(150deg,var(--brand),var(--violet));display:flex;align-items:center;justify-content:center;color:#fff;font-size:20px;box-shadow:var(--sh-brand)}
.login-card h1{text-align:center;font-size:26px;font-weight:800;margin-bottom:4px}
.login-card .sub{text-align:center;color:var(--muted);font-size:13.5px;margin-bottom:22px}

/* ----------------------------- 14. Modal ---------------------------------- */
.modal{position:fixed;inset:0;background:rgba(31,27,46,.55);backdrop-filter:blur(2px);display:none;align-items:center;justify-content:center;z-index:60;padding:18px}
.modal.show{display:flex}
.modal .panel{background:var(--surface);border-radius:var(--r-lg);padding:26px;max-width:460px;width:100%;box-shadow:var(--sh)}
.modal .panel h3{font-size:19px;font-weight:800;margin-bottom:16px}

/* ----------------------------- 15. Miniaturas (láminas) ------------------- */
.thumbs{display:grid;grid-template-columns:repeat(auto-fill,minmax(120px,1fr));gap:12px;max-height:520px;overflow:auto;padding:4px}
.thumb-card{border:1px solid var(--line);border-radius:var(--r);background:var(--surface);overflow:hidden;position:relative;box-shadow:var(--sh-sm)}
.thumb-card .thumb{aspect-ratio:3/4;background:var(--surface-2);display:flex;align-items:center;justify-content:center;overflow:hidden}
.thumb-card .thumb img{width:100%;height:100%;object-fit:cover}
.thumb-card .cap{padding:7px 8px;font-size:11px;color:var(--body)}
.thumb-card .num{color:var(--brand-700);font-weight:800}
.thumb-card .del{position:absolute;top:6px;right:6px;background:var(--danger);color:#fff;border:0;border-radius:8px;width:26px;height:26px;cursor:pointer;font-weight:800;box-shadow:var(--sh-sm)}

/* Casillas de imagen (portada/fondo/contraportada) */
.imgtypes{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:14px}
.imgt{border:1px solid var(--line);border-radius:var(--r);padding:14px;text-align:center;background:var(--surface-2)}
.imgt .prev{height:120px;display:flex;align-items:center;justify-content:center;margin-bottom:10px;color:var(--muted)}
.imgt img{max-height:120px;max-width:100%;border-radius:10px}
.imgt b{font-size:13px;color:var(--ink)}

/* ----------------------------- 16. Utilidades ----------------------------- */
.muted{color:var(--muted)}
.center{text-align:center}
.row-inline{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.mt-0{margin-top:0}.mb-0{margin-bottom:0}
code{background:rgba(31,27,46,.06);padding:2px 6px;border-radius:6px;font-family:Consolas,monospace;font-size:.92em}
.hidden{display:none!important}

/* Pie de página del sitio */
.site-footer{text-align:center;color:var(--muted);font-size:12.5px;padding:22px 16px 26px;border-top:1px solid var(--line);margin-top:8px}
.site-footer b{color:var(--brand-700);font-weight:700}

/* Empujar contenido en pantallas chicas: colapsar sidebar */
@media(max-width:820px){
  .app{grid-template-columns:1fr}
  .sidebar{position:static;height:auto;flex-direction:column;border-right:0;border-bottom:1px solid var(--line)}
}