/* ===========================
   BASE GENERAL
=========================== */

body {
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    background: #f3f4f6;
    margin: 0;
    padding: 0;
    color: #111827;
}

/* ===========================
   LOGO AUSPICIADOR (HEADER)
=========================== */

sponsor-header {
    position: fixed;              /* fijo arriba siempre */
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    display: flex;
    justify-content: center;      /* centrado al inicio */
    align-items: center;
    padding: 30px 0;              /* más alto al inicio */
    background: #f3f4f6;
    transition: padding 0.35s ease, background 0.35s ease;
}

.sponsor-logo {
    width: 150px;                 /* 🔥 grande al inicio */
    height: auto;
    transition: width 0.35s ease, transform 0.35s ease;
}

/* Cuando se hace scroll */
.sponsor-header.shrink {
    justify-content: flex-start;  /* se va a la izquierda */
    padding: 8px 20px;            /* header más delgado */
    background: rgba(243, 244, 246, 0.95);
}

.sponsor-header.shrink .sponsor-logo {
    width: 90px;                  /* 👈 logo pequeño al hacer scroll */
}


/* ===========================
   CONTENEDOR PRINCIPAL
=========================== */

.container {
    max-width: 900px;
    margin: 180px auto 40px;   /* 👈 antes tenías 40px auto; subo el margin-top */
    padding: 30px 40px 40px;
    border: 1px solid #e5e7eb;
    border-radius: 16px;
    background: #ffffff;
    box-shadow: 0 10px 25px rgba(15, 23, 42, 0.08);
    box-sizing: border-box;
}


/* ===========================
   REDES – INSTAGRAM
=========================== */

.top-link {
    display: flex;
    align-items: center;
    gap: 6px;
    margin-bottom: 25px;
    font-size: 16px;
}

.ig-logo {
    width: 26px;
    height: 26px;
    object-fit: contain;
    display: block;
}

.insta-link {
    display: flex;
    align-items: center;
    gap: 6px;
    text-decoration: none;
}

.insta-text {
    font-size: 18px;
    font-weight: 600;
    line-height: 1;
    background: linear-gradient(90deg, #f97316, #ec4899, #8b5cf6);
    -webkit-background-clip: text;
    color: transparent;
    cursor: pointer;
    transition: opacity 0.2s ease;
}

.insta-text:hover {
    opacity: 0.75;
}


/* ===========================
   TÍTULO
=========================== */

h1 {
    text-align: center;
    margin-bottom: 30px;
    font-size: 26px;
    letter-spacing: 0.03em;
    color: #111827;
}


/* ===========================
   FORMULARIO
=========================== */

.form-row {
    display: flex;
    align-items: center;
    margin-bottom: 15px;
}

.form-row label {
    width: 160px;
    font-size: 16px;
}

/* Inputs y selects */
.form-row input[type="text"],
.form-row input[type="email"],
.form-row input[type="tel"],
.form-row select {
    flex: 1;
    padding: 10px 12px;
    border: 1px solid #d1d5db;
    border-radius: 8px;
    font-size: 14px;
    background-color: #f9fafb;
    transition: border-color 0.2s ease, box-shadow 0.2s ease, background-color 0.2s ease;
}

.form-row input:focus,
.form-row select:focus {
    outline: none;
    border-color: #ec4899;
    box-shadow: 0 0 0 3px rgba(236, 72, 153, 0.2);
    background-color: #ffffff;
}


/* ===========================
   RADIO BUTTONS
=========================== */

.radio-group {
    flex: 1;
    display: flex;
    gap: 20px;
    font-size: 14px;
    padding: 0;
}

.radio-group label {
    display: flex;
    align-items: center;
    gap: 4px;
}


/* ===========================
   BOTÓN
=========================== */

.submit-row {
    text-align: center;
    margin-top: 25px;
}

button {
    padding: 10px 30px;
    font-size: 16px;
    border-radius: 999px;
    border: none;
    cursor: pointer;
    background: linear-gradient(90deg, #f97316, #ec4899, #8b5cf6);
    color: #fff;
    font-weight: 600;
    letter-spacing: 0.03em;
    box-shadow: 0 8px 18px rgba(236, 72, 153, 0.35);
    transition: transform 0.15s ease, box-shadow 0.15s ease, opacity 0.15s ease;
}

button:hover {
    transform: translateY(-1px);
    box-shadow: 0 12px 28px rgba(236, 72, 153, 0.45);
    opacity: 0.95;
}

button:active {
    transform: translateY(0);
    box-shadow: 0 6px 14px rgba(236, 72, 153, 0.3);
}