/* -------------------------
   Reset y variables
-------------------------- */
:root{
  --mx-burgundy: #8e1731;       /* fondo base */
  --mx-burgundy-deep: #6f0f25;  /* degradado */
  --mx-gray: #5f6b75;
  --mx-card: #6f8290;
  --white: #ffffff;
  --accent: #2f9e44; /* verde del check */
  --focus: #00b4d8;
  --radius: 12px;
  --shadow: 0 10px 30px rgba(0,0,0,.25);
}

*,
*::before,
*::after { box-sizing: border-box; }

html, body { height: 100%; }

body{
  margin: 0;
  font-family: "Montserrat", system-ui, -apple-system, Segoe UI, Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;
  color: var(--white);
  background: var(--mx-burgundy);
}
/* -------------------------
   Layout de página
-------------------------- */
.page{
  min-height: 100dvh; /* asegura cubrir toda la pantalla en móviles */
  /* Fondo con degradado + patrón sutil en cuadros */
  background:
    linear-gradient(180deg, rgba(255,255,255,0.04), rgba(0,0,0,0.12)),
    radial-gradient(1200px 700px at 50% -10%, rgba(255,255,255,.08), transparent 60%),
    linear-gradient(160deg, var(--mx-burgundy) 0%, var(--mx-burgundy-deep) 100%);
  background-attachment: fixed, fixed, fixed;
  display: grid;
  grid-template-rows: auto 1fr;
  place-items: center;
  padding: clamp(16px, 2vw, 24px);
}

/* -------------------------
   Encabezado / marca
-------------------------- */
.brand{
  width: min(1200px, 96%);
  margin-inline: auto;
  display: grid;
  place-items: center;
  gap: 8px;
  text-align: center;
}

.brand-image{
  width: min(820px, 92%);
  height: auto;
  object-fit: contain;
  filter: drop-shadow(0 8px 18px rgba(0,0,0,.35));
}

.brand-title{
  margin: 0;
  line-height: 1;
  letter-spacing: .04em;
  text-transform: uppercase;
  font-weight: 800;
  display: none; /* visible sólo si no usas imagen; cambia a block si la necesitas */
}

.brand-small{ font-size: clamp(.9rem, 1.6vw, 1.1rem); opacity: .95; }
.brand-strong{ font-size: clamp(1.6rem, 3.5vw, 2.2rem); }

/* -------------------------
   Hero / Formulario
-------------------------- */
.hero{
  width: min(900px, 92%);
  margin: clamp(12px, 4vh, 32px) auto;
  display: grid;
  justify-items: center;
  gap: clamp(18px, 3.5vh, 28px);
  text-align: center;
}

.hero-title{
  margin: 0;
  text-transform: uppercase;
  font-weight: 800;
  letter-spacing: .06em;
  line-height: 1.05;
  text-shadow: 0 10px 22px rgba(0,0,0,.35);
}

.hero-title .thin{
  font-size: clamp(1.6rem, 6vw, 3.6rem);
  font-weight: 800;
}

.hero-title .subtitle{
  display: inline-block;
  margin-top: .25em;
  font-size: clamp(1rem, 3.2vw, 1.6rem);
  font-weight: 600;
  letter-spacing: .08em;
}

/* Formulario */
.verify-form{
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 12px;
  width: min(560px, 100%);
}

.verify-form input{
  width: 100%;
  padding: 14px 16px;
  border: 2px solid rgba(255,255,255,.55);
  background: transparent;
  color: var(--white);
  border-radius: var(--radius);
  font-weight: 600;
  letter-spacing: .06em;
  text-transform: uppercase;
  outline: none;
  transition: border-color .2s ease, background-color .2s ease;
}

.verify-form input::placeholder{
  color: rgba(255,255,255,.85);
}

.verify-form input:focus{
  border-color: var(--focus);
  background-color: rgba(255,255,255,.06);
}

/* Botón verificar */
.btn-verify{
  display: inline-flex;
  align-items: center;
  gap: 10px;
  border: none;
  cursor: pointer;
  padding: 14px 18px;
  border-radius: var(--radius);
  font-weight: 800;
  letter-spacing: .06em;
  text-transform: uppercase;
  background: linear-gradient(180deg, #3aa856, #1e7b38);
  color: #e9f7ef;
  box-shadow: 0 10px 20px rgba(0,0,0,.25), inset 0 1px 0 rgba(255,255,255,.25);
  transition: transform .08s ease, filter .2s ease;
}

.btn-verify .icon{
  width: 20px;
  height: 20px;
  fill: #a8f78d;
  filter: drop-shadow(0 0 2px rgba(0,0,0,.4));
}

.btn-verify:hover{ filter: brightness(1.05); }
.btn-verify:active{ transform: translateY(1px); }

/* Disclaimer */
.disclaimer{
  margin-top: clamp(10px, 2vh, 18px);
  max-width: 820px;
  width: min(820px, 100%);
  font-size: clamp(.78rem, 1.6vw, .95rem);
  line-height: 1.4;
  text-align: center;
  background: rgba(111,130,144,.9);
  color: #eef3f6;
  padding: 16px 18px;
  border-radius: 8px;
  box-shadow: var(--shadow);
}

/* -------------------------
   Accesibilidad
-------------------------- */
.sr-only{
  position: absolute !important;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0);
  border: 0;
}

/* -------------------------
   Responsivo
-------------------------- */
@media (max-width: 640px){
  .verify-form{
    grid-template-columns: 1fr; /* input arriba, botón abajo */
  }
  .btn-verify{ justify-content: center; }
}

@media (min-width: 1100px){
  .brand-image{ width: 900px; }
}