/* ─── VARIABLES ─────────────────────────────────────────────── */
:root {
  --bg:    #0D1F35;
  --dark:  #1A3550;
  --navy:  #371EC9;
  --gold:  #F2C318;
  --white: #FFFFFF;
  --muted: #7F9CB0;
  --red:   #C0392B;
  --green: #27AE60;
  --font:  'Inter', Arial, sans-serif;
}

/* ─── RESET ─────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; }
body { background: var(--bg); color: var(--white); font-family: var(--font); min-height: 100vh; }
a { color: var(--gold); text-decoration: none; }

/* ─── LAYOUT ────────────────────────────────────────────────── */
.container { max-width: 900px; margin: 0 auto; padding: 0 1.5rem; }
.center    { text-align: center; }

/* ─── HEADER ────────────────────────────────────────────────── */
header {
  border-bottom: 3px solid var(--gold);
  padding: 1rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
header .brand { font-size: .75rem; letter-spacing: .15em; color: var(--muted); text-transform: uppercase; }
header .brand span { color: var(--gold); font-weight: 700; }

/* ─── HERO ──────────────────────────────────────────────────── */
.hero { padding: 4rem 1.5rem 3rem; text-align: center; }
.hero h1 { font-size: 2.8rem; font-weight: 800; line-height: 1.1; margin-bottom: 1rem; }
.hero h1 em { color: var(--gold); font-style: normal; }
.hero p { color: var(--muted); font-size: 1.1rem; max-width: 540px; margin: 0 auto 2rem; }

/* ─── TAG ───────────────────────────────────────────────────── */
.tag {
  display: inline-block;
  background: var(--gold);
  color: var(--bg);
  font-size: .65rem;
  font-weight: 700;
  letter-spacing: .12em;
  padding: .25rem .75rem;
  text-transform: uppercase;
  margin-bottom: 1rem;
}

/* ─── CARDS ─────────────────────────────────────────────────── */
.card {
  background: var(--dark);
  border-radius: 4px;
  padding: 1.5rem;
  margin-bottom: 1rem;
}
.card-gold { border-left: 4px solid var(--gold); }
.card-navy { border-left: 4px solid var(--navy); }
.card-green { border-left: 4px solid var(--green); }
.card-red   { border-left: 4px solid var(--red); }

/* ─── BUTTONS ───────────────────────────────────────────────── */
.btn {
  display: inline-block;
  padding: .75rem 1.75rem;
  font-size: .9rem;
  font-weight: 700;
  letter-spacing: .05em;
  cursor: pointer;
  border: none;
  border-radius: 3px;
  transition: opacity .15s;
}
.btn:hover { opacity: .85; }
.btn-gold  { background: var(--gold);  color: var(--bg); }
.btn-navy  { background: var(--navy);  color: var(--white); }
.btn-ghost { background: transparent; color: var(--gold); border: 2px solid var(--gold); }
.btn-full  { width: 100%; text-align: center; }
.btn:disabled { opacity: .4; cursor: not-allowed; }

/* ─── FORMS ─────────────────────────────────────────────────── */
.form-group { margin-bottom: 1.25rem; }
label { display: block; font-size: .8rem; letter-spacing: .08em; color: var(--muted); margin-bottom: .4rem; text-transform: uppercase; }
input, select, textarea {
  width: 100%;
  background: var(--dark);
  border: 1px solid #2a4a65;
  color: var(--white);
  padding: .75rem 1rem;
  font-size: 1rem;
  font-family: var(--font);
  border-radius: 3px;
  outline: none;
  transition: border-color .15s;
}
input:focus, select:focus, textarea:focus { border-color: var(--gold); }
input::placeholder { color: var(--muted); }
select option { background: var(--dark); }

/* ─── CHAT ──────────────────────────────────────────────────── */
.chat-wrap {
  display: flex;
  flex-direction: column;
  height: calc(100vh - 180px);
  max-width: 720px;
  margin: 0 auto;
}
.chat-messages {
  flex: 1;
  overflow-y: auto;
  padding: 1.5rem 0;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}
.msg { display: flex; gap: .75rem; }
.msg.user  { flex-direction: row-reverse; }
.msg-bubble {
  max-width: 75%;
  padding: .9rem 1.1rem;
  border-radius: 4px;
  font-size: .95rem;
  line-height: 1.55;
}
.msg.assistant .msg-bubble { background: var(--dark); border-left: 3px solid var(--gold); }
.msg.user .msg-bubble      { background: var(--navy); }
.msg-avatar {
  width: 32px; height: 32px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: .75rem; font-weight: 700; flex-shrink: 0;
}
.msg.assistant .msg-avatar { background: var(--gold); color: var(--bg); }
.msg.user .msg-avatar      { background: var(--navy); color: var(--white); }

.chat-input-wrap {
  border-top: 1px solid var(--dark);
  padding: 1rem 0;
  display: flex;
  gap: .75rem;
}
.chat-input-wrap textarea {
  flex: 1;
  resize: none;
  height: 56px;
  padding: .85rem 1rem;
  font-size: .95rem;
}
.chat-input-wrap button { flex-shrink: 0; height: 56px; padding: 0 1.25rem; }

/* ─── OUTPUT CARD ───────────────────────────────────────────── */
.output-card {
  background: #0a1a0d;
  border: 2px solid var(--green);
  border-radius: 4px;
  padding: 1.5rem;
  margin-top: 1rem;
}
.output-card h3 { color: var(--green); font-size: .75rem; letter-spacing: .1em; margin-bottom: 1rem; }

/* ─── PROGRESS BAR ──────────────────────────────────────────── */
.progress-bar { background: var(--dark); border-radius: 2px; height: 6px; margin: .5rem 0; }
.progress-fill { height: 100%; background: var(--gold); border-radius: 2px; transition: width .4s; }

/* ─── BADGE ─────────────────────────────────────────────────── */
.badge {
  display: inline-block;
  font-size: .65rem;
  font-weight: 700;
  padding: .2rem .55rem;
  border-radius: 2px;
  letter-spacing: .08em;
  text-transform: uppercase;
}
.badge-gold    { background: var(--gold);  color: var(--bg); }
.badge-green   { background: var(--green); color: var(--white); }
.badge-muted   { background: var(--dark);  color: var(--muted); }
.badge-navy    { background: var(--navy);  color: var(--white); }
.badge-red     { background: var(--red);   color: var(--white); }
.badge-activa    { background: var(--green); color: var(--white); }
.badge-terminada { background: var(--muted); color: var(--white); }
.badge-borrador  { background: var(--dark);  color: var(--muted); }

/* ─── GRID ──────────────────────────────────────────────────── */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.grid-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 1rem; }
@media (max-width: 600px) { .grid-2, .grid-3 { grid-template-columns: 1fr; } }

/* ─── UTILS ─────────────────────────────────────────────────── */
.mt-1 { margin-top: .5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }
.mb-1 { margin-bottom: .5rem; }
.mb-2 { margin-bottom: 1rem; }
.gold  { color: var(--gold); }
.muted { color: var(--muted); }
.green { color: var(--green); }
.red   { color: var(--red); }
.small { font-size: .85rem; }
.bold  { font-weight: 700; }
.hidden { display: none !important; }
.spinner { display: inline-block; width: 16px; height: 16px; border: 2px solid var(--muted); border-top-color: var(--gold); border-radius: 50%; animation: spin .7s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }